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path: root/drivers/usb/isp1760
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-rw-r--r--drivers/usb/isp1760/Kconfig5
-rw-r--r--drivers/usb/isp1760/isp1760-core.c513
-rw-r--r--drivers/usb/isp1760/isp1760-core.h44
-rw-r--r--drivers/usb/isp1760/isp1760-hcd.c1020
-rw-r--r--drivers/usb/isp1760/isp1760-hcd.h57
-rw-r--r--drivers/usb/isp1760/isp1760-if.c41
-rw-r--r--drivers/usb/isp1760/isp1760-regs.h435
-rw-r--r--drivers/usb/isp1760/isp1760-udc.c251
-rw-r--r--drivers/usb/isp1760/isp1760-udc.h13
9 files changed, 1694 insertions, 685 deletions
diff --git a/drivers/usb/isp1760/Kconfig b/drivers/usb/isp1760/Kconfig
index b1022cc490a2..2ed2b73291d1 100644
--- a/drivers/usb/isp1760/Kconfig
+++ b/drivers/usb/isp1760/Kconfig
@@ -1,10 +1,11 @@
# SPDX-License-Identifier: GPL-2.0
config USB_ISP1760
- tristate "NXP ISP 1760/1761 support"
+ tristate "NXP ISP 1760/1761/1763 support"
depends on USB || USB_GADGET
+ select REGMAP_MMIO
help
- Say Y or M here if your system as an ISP1760 USB host controller
+ Say Y or M here if your system as an ISP1760/1763 USB host controller
or an ISP1761 USB dual-role controller.
This driver does not support isochronous transfers or OTG.
diff --git a/drivers/usb/isp1760/isp1760-core.c b/drivers/usb/isp1760/isp1760-core.c
index fdeb4cf97cc5..ff07e2890692 100644
--- a/drivers/usb/isp1760/isp1760-core.c
+++ b/drivers/usb/isp1760/isp1760-core.c
@@ -2,12 +2,14 @@
/*
* Driver for the NXP ISP1760 chip
*
+ * Copyright 2021 Linaro, Rui Miguel Silva
* Copyright 2014 Laurent Pinchart
* Copyright 2007 Sebastian Siewior
*
* Contacts:
* Sebastian Siewior <bigeasy@linutronix.de>
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Rui Miguel Silva <rui.silva@linaro.org>
*/
#include <linux/delay.h>
@@ -15,6 +17,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/usb.h>
@@ -23,10 +26,10 @@
#include "isp1760-regs.h"
#include "isp1760-udc.h"
-static void isp1760_init_core(struct isp1760_device *isp)
+static int isp1760_init_core(struct isp1760_device *isp)
{
- u32 otgctrl;
- u32 hwmode;
+ struct isp1760_hcd *hcd = &isp->hcd;
+ struct isp1760_udc *udc = &isp->udc;
/* Low-level chip reset */
if (isp->rst_gpio) {
@@ -39,24 +42,29 @@ static void isp1760_init_core(struct isp1760_device *isp)
* Reset the host controller, including the CPU interface
* configuration.
*/
- isp1760_write32(isp->regs, HC_RESET_REG, SW_RESET_RESET_ALL);
+ isp1760_field_set(hcd->fields, SW_RESET_RESET_ALL);
msleep(100);
/* Setup HW Mode Control: This assumes a level active-low interrupt */
- hwmode = HW_DATA_BUS_32BIT;
+ if ((isp->devflags & ISP1760_FLAG_ANALOG_OC) && hcd->is_isp1763) {
+ dev_err(isp->dev, "isp1763 analog overcurrent not available\n");
+ return -EINVAL;
+ }
if (isp->devflags & ISP1760_FLAG_BUS_WIDTH_16)
- hwmode &= ~HW_DATA_BUS_32BIT;
+ isp1760_field_clear(hcd->fields, HW_DATA_BUS_WIDTH);
+ if (isp->devflags & ISP1760_FLAG_BUS_WIDTH_8)
+ isp1760_field_set(hcd->fields, HW_DATA_BUS_WIDTH);
if (isp->devflags & ISP1760_FLAG_ANALOG_OC)
- hwmode |= HW_ANA_DIGI_OC;
+ isp1760_field_set(hcd->fields, HW_ANA_DIGI_OC);
if (isp->devflags & ISP1760_FLAG_DACK_POL_HIGH)
- hwmode |= HW_DACK_POL_HIGH;
+ isp1760_field_set(hcd->fields, HW_DACK_POL_HIGH);
if (isp->devflags & ISP1760_FLAG_DREQ_POL_HIGH)
- hwmode |= HW_DREQ_POL_HIGH;
+ isp1760_field_set(hcd->fields, HW_DREQ_POL_HIGH);
if (isp->devflags & ISP1760_FLAG_INTR_POL_HIGH)
- hwmode |= HW_INTR_HIGH_ACT;
+ isp1760_field_set(hcd->fields, HW_INTR_HIGH_ACT);
if (isp->devflags & ISP1760_FLAG_INTR_EDGE_TRIG)
- hwmode |= HW_INTR_EDGE_TRIG;
+ isp1760_field_set(hcd->fields, HW_INTR_EDGE_TRIG);
/*
* The ISP1761 has a dedicated DC IRQ line but supports sharing the HC
@@ -65,59 +73,425 @@ static void isp1760_init_core(struct isp1760_device *isp)
* spurious interrupts during HCD registration.
*/
if (isp->devflags & ISP1760_FLAG_ISP1761) {
- isp1760_write32(isp->regs, DC_MODE, 0);
- hwmode |= HW_COMN_IRQ;
+ isp1760_reg_write(udc->regs, ISP176x_DC_MODE, 0);
+ isp1760_field_set(hcd->fields, HW_COMN_IRQ);
}
/*
- * We have to set this first in case we're in 16-bit mode.
- * Write it twice to ensure correct upper bits if switching
- * to 16-bit mode.
- */
- isp1760_write32(isp->regs, HC_HW_MODE_CTRL, hwmode);
- isp1760_write32(isp->regs, HC_HW_MODE_CTRL, hwmode);
-
- /*
* PORT 1 Control register of the ISP1760 is the OTG control register
* on ISP1761.
*
* TODO: Really support OTG. For now we configure port 1 in device mode
- * when OTG is requested.
*/
- if ((isp->devflags & ISP1760_FLAG_ISP1761) &&
- (isp->devflags & ISP1760_FLAG_OTG_EN))
- otgctrl = ((HW_DM_PULLDOWN | HW_DP_PULLDOWN) << 16)
- | HW_OTG_DISABLE;
- else
- otgctrl = (HW_SW_SEL_HC_DC << 16)
- | (HW_VBUS_DRV | HW_SEL_CP_EXT);
-
- isp1760_write32(isp->regs, HC_PORT1_CTRL, otgctrl);
+ if (((isp->devflags & ISP1760_FLAG_ISP1761) ||
+ (isp->devflags & ISP1760_FLAG_ISP1763)) &&
+ (isp->devflags & ISP1760_FLAG_PERIPHERAL_EN)) {
+ isp1760_field_set(hcd->fields, HW_DM_PULLDOWN);
+ isp1760_field_set(hcd->fields, HW_DP_PULLDOWN);
+ isp1760_field_set(hcd->fields, HW_OTG_DISABLE);
+ } else {
+ isp1760_field_set(hcd->fields, HW_SW_SEL_HC_DC);
+ isp1760_field_set(hcd->fields, HW_VBUS_DRV);
+ isp1760_field_set(hcd->fields, HW_SEL_CP_EXT);
+ }
- dev_info(isp->dev, "bus width: %u, oc: %s\n",
+ dev_info(isp->dev, "%s bus width: %u, oc: %s\n",
+ hcd->is_isp1763 ? "isp1763" : "isp1760",
+ isp->devflags & ISP1760_FLAG_BUS_WIDTH_8 ? 8 :
isp->devflags & ISP1760_FLAG_BUS_WIDTH_16 ? 16 : 32,
+ hcd->is_isp1763 ? "not available" :
isp->devflags & ISP1760_FLAG_ANALOG_OC ? "analog" : "digital");
+
+ return 0;
}
void isp1760_set_pullup(struct isp1760_device *isp, bool enable)
{
- isp1760_write32(isp->regs, HW_OTG_CTRL_SET,
- enable ? HW_DP_PULLUP : HW_DP_PULLUP << 16);
+ struct isp1760_udc *udc = &isp->udc;
+
+ if (enable)
+ isp1760_field_set(udc->fields, HW_DP_PULLUP);
+ else
+ isp1760_field_set(udc->fields, HW_DP_PULLUP_CLEAR);
}
+/*
+ * ISP1760/61:
+ *
+ * 60kb divided in:
+ * - 32 blocks @ 256 bytes
+ * - 20 blocks @ 1024 bytes
+ * - 4 blocks @ 8192 bytes
+ */
+static const struct isp1760_memory_layout isp176x_memory_conf = {
+ .blocks[0] = 32,
+ .blocks_size[0] = 256,
+ .blocks[1] = 20,
+ .blocks_size[1] = 1024,
+ .blocks[2] = 4,
+ .blocks_size[2] = 8192,
+
+ .slot_num = 32,
+ .payload_blocks = 32 + 20 + 4,
+ .payload_area_size = 0xf000,
+};
+
+/*
+ * ISP1763:
+ *
+ * 20kb divided in:
+ * - 8 blocks @ 256 bytes
+ * - 2 blocks @ 1024 bytes
+ * - 4 blocks @ 4096 bytes
+ */
+static const struct isp1760_memory_layout isp1763_memory_conf = {
+ .blocks[0] = 8,
+ .blocks_size[0] = 256,
+ .blocks[1] = 2,
+ .blocks_size[1] = 1024,
+ .blocks[2] = 4,
+ .blocks_size[2] = 4096,
+
+ .slot_num = 16,
+ .payload_blocks = 8 + 2 + 4,
+ .payload_area_size = 0x5000,
+};
+
+static const struct regmap_range isp176x_hc_volatile_ranges[] = {
+ regmap_reg_range(ISP176x_HC_USBCMD, ISP176x_HC_ATL_PTD_LASTPTD),
+ regmap_reg_range(ISP176x_HC_BUFFER_STATUS, ISP176x_HC_MEMORY),
+ regmap_reg_range(ISP176x_HC_INTERRUPT, ISP176x_HC_OTG_CTRL_CLEAR),
+};
+
+static const struct regmap_access_table isp176x_hc_volatile_table = {
+ .yes_ranges = isp176x_hc_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isp176x_hc_volatile_ranges),
+};
+
+static const struct regmap_config isp1760_hc_regmap_conf = {
+ .name = "isp1760-hc",
+ .reg_bits = 16,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .fast_io = true,
+ .max_register = ISP176x_HC_OTG_CTRL_CLEAR,
+ .volatile_table = &isp176x_hc_volatile_table,
+};
+
+static const struct reg_field isp1760_hc_reg_fields[] = {
+ [HCS_PPC] = REG_FIELD(ISP176x_HC_HCSPARAMS, 4, 4),
+ [HCS_N_PORTS] = REG_FIELD(ISP176x_HC_HCSPARAMS, 0, 3),
+ [HCC_ISOC_CACHE] = REG_FIELD(ISP176x_HC_HCCPARAMS, 7, 7),
+ [HCC_ISOC_THRES] = REG_FIELD(ISP176x_HC_HCCPARAMS, 4, 6),
+ [CMD_LRESET] = REG_FIELD(ISP176x_HC_USBCMD, 7, 7),
+ [CMD_RESET] = REG_FIELD(ISP176x_HC_USBCMD, 1, 1),
+ [CMD_RUN] = REG_FIELD(ISP176x_HC_USBCMD, 0, 0),
+ [STS_PCD] = REG_FIELD(ISP176x_HC_USBSTS, 2, 2),
+ [HC_FRINDEX] = REG_FIELD(ISP176x_HC_FRINDEX, 0, 13),
+ [FLAG_CF] = REG_FIELD(ISP176x_HC_CONFIGFLAG, 0, 0),
+ [HC_ISO_PTD_DONEMAP] = REG_FIELD(ISP176x_HC_ISO_PTD_DONEMAP, 0, 31),
+ [HC_ISO_PTD_SKIPMAP] = REG_FIELD(ISP176x_HC_ISO_PTD_SKIPMAP, 0, 31),
+ [HC_ISO_PTD_LASTPTD] = REG_FIELD(ISP176x_HC_ISO_PTD_LASTPTD, 0, 31),
+ [HC_INT_PTD_DONEMAP] = REG_FIELD(ISP176x_HC_INT_PTD_DONEMAP, 0, 31),
+ [HC_INT_PTD_SKIPMAP] = REG_FIELD(ISP176x_HC_INT_PTD_SKIPMAP, 0, 31),
+ [HC_INT_PTD_LASTPTD] = REG_FIELD(ISP176x_HC_INT_PTD_LASTPTD, 0, 31),
+ [HC_ATL_PTD_DONEMAP] = REG_FIELD(ISP176x_HC_ATL_PTD_DONEMAP, 0, 31),
+ [HC_ATL_PTD_SKIPMAP] = REG_FIELD(ISP176x_HC_ATL_PTD_SKIPMAP, 0, 31),
+ [HC_ATL_PTD_LASTPTD] = REG_FIELD(ISP176x_HC_ATL_PTD_LASTPTD, 0, 31),
+ [PORT_OWNER] = REG_FIELD(ISP176x_HC_PORTSC1, 13, 13),
+ [PORT_POWER] = REG_FIELD(ISP176x_HC_PORTSC1, 12, 12),
+ [PORT_LSTATUS] = REG_FIELD(ISP176x_HC_PORTSC1, 10, 11),
+ [PORT_RESET] = REG_FIELD(ISP176x_HC_PORTSC1, 8, 8),
+ [PORT_SUSPEND] = REG_FIELD(ISP176x_HC_PORTSC1, 7, 7),
+ [PORT_RESUME] = REG_FIELD(ISP176x_HC_PORTSC1, 6, 6),
+ [PORT_PE] = REG_FIELD(ISP176x_HC_PORTSC1, 2, 2),
+ [PORT_CSC] = REG_FIELD(ISP176x_HC_PORTSC1, 1, 1),
+ [PORT_CONNECT] = REG_FIELD(ISP176x_HC_PORTSC1, 0, 0),
+ [ALL_ATX_RESET] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 31, 31),
+ [HW_ANA_DIGI_OC] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 15, 15),
+ [HW_COMN_IRQ] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 10, 10),
+ [HW_DATA_BUS_WIDTH] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 8, 8),
+ [HW_DACK_POL_HIGH] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 6, 6),
+ [HW_DREQ_POL_HIGH] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 5, 5),
+ [HW_INTR_HIGH_ACT] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 2, 2),
+ [HW_INTR_EDGE_TRIG] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 1, 1),
+ [HW_GLOBAL_INTR_EN] = REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 0, 0),
+ [HC_CHIP_REV] = REG_FIELD(ISP176x_HC_CHIP_ID, 16, 31),
+ [HC_CHIP_ID_HIGH] = REG_FIELD(ISP176x_HC_CHIP_ID, 8, 15),
+ [HC_CHIP_ID_LOW] = REG_FIELD(ISP176x_HC_CHIP_ID, 0, 7),
+ [HC_SCRATCH] = REG_FIELD(ISP176x_HC_SCRATCH, 0, 31),
+ [SW_RESET_RESET_ALL] = REG_FIELD(ISP176x_HC_RESET, 0, 0),
+ [ISO_BUF_FILL] = REG_FIELD(ISP176x_HC_BUFFER_STATUS, 2, 2),
+ [INT_BUF_FILL] = REG_FIELD(ISP176x_HC_BUFFER_STATUS, 1, 1),
+ [ATL_BUF_FILL] = REG_FIELD(ISP176x_HC_BUFFER_STATUS, 0, 0),
+ [MEM_BANK_SEL] = REG_FIELD(ISP176x_HC_MEMORY, 16, 17),
+ [MEM_START_ADDR] = REG_FIELD(ISP176x_HC_MEMORY, 0, 15),
+ [HC_INTERRUPT] = REG_FIELD(ISP176x_HC_INTERRUPT, 0, 9),
+ [HC_ATL_IRQ_ENABLE] = REG_FIELD(ISP176x_HC_INTERRUPT_ENABLE, 8, 8),
+ [HC_INT_IRQ_ENABLE] = REG_FIELD(ISP176x_HC_INTERRUPT_ENABLE, 7, 7),
+ [HC_ISO_IRQ_MASK_OR] = REG_FIELD(ISP176x_HC_ISO_IRQ_MASK_OR, 0, 31),
+ [HC_INT_IRQ_MASK_OR] = REG_FIELD(ISP176x_HC_INT_IRQ_MASK_OR, 0, 31),
+ [HC_ATL_IRQ_MASK_OR] = REG_FIELD(ISP176x_HC_ATL_IRQ_MASK_OR, 0, 31),
+ [HC_ISO_IRQ_MASK_AND] = REG_FIELD(ISP176x_HC_ISO_IRQ_MASK_AND, 0, 31),
+ [HC_INT_IRQ_MASK_AND] = REG_FIELD(ISP176x_HC_INT_IRQ_MASK_AND, 0, 31),
+ [HC_ATL_IRQ_MASK_AND] = REG_FIELD(ISP176x_HC_ATL_IRQ_MASK_AND, 0, 31),
+ [HW_OTG_DISABLE] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 10, 10),
+ [HW_SW_SEL_HC_DC] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 7, 7),
+ [HW_VBUS_DRV] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 4, 4),
+ [HW_SEL_CP_EXT] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 3, 3),
+ [HW_DM_PULLDOWN] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 2, 2),
+ [HW_DP_PULLDOWN] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 1, 1),
+ [HW_DP_PULLUP] = REG_FIELD(ISP176x_HC_OTG_CTRL_SET, 0, 0),
+ [HW_OTG_DISABLE_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 10, 10),
+ [HW_SW_SEL_HC_DC_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 7, 7),
+ [HW_VBUS_DRV_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 4, 4),
+ [HW_SEL_CP_EXT_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 3, 3),
+ [HW_DM_PULLDOWN_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 2, 2),
+ [HW_DP_PULLDOWN_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 1, 1),
+ [HW_DP_PULLUP_CLEAR] = REG_FIELD(ISP176x_HC_OTG_CTRL_CLEAR, 0, 0),
+};
+
+static const struct reg_field isp1763_hc_reg_fields[] = {
+ [CMD_LRESET] = REG_FIELD(ISP1763_HC_USBCMD, 7, 7),
+ [CMD_RESET] = REG_FIELD(ISP1763_HC_USBCMD, 1, 1),
+ [CMD_RUN] = REG_FIELD(ISP1763_HC_USBCMD, 0, 0),
+ [STS_PCD] = REG_FIELD(ISP1763_HC_USBSTS, 2, 2),
+ [HC_FRINDEX] = REG_FIELD(ISP1763_HC_FRINDEX, 0, 13),
+ [FLAG_CF] = REG_FIELD(ISP1763_HC_CONFIGFLAG, 0, 0),
+ [HC_ISO_PTD_DONEMAP] = REG_FIELD(ISP1763_HC_ISO_PTD_DONEMAP, 0, 15),
+ [HC_ISO_PTD_SKIPMAP] = REG_FIELD(ISP1763_HC_ISO_PTD_SKIPMAP, 0, 15),
+ [HC_ISO_PTD_LASTPTD] = REG_FIELD(ISP1763_HC_ISO_PTD_LASTPTD, 0, 15),
+ [HC_INT_PTD_DONEMAP] = REG_FIELD(ISP1763_HC_INT_PTD_DONEMAP, 0, 15),
+ [HC_INT_PTD_SKIPMAP] = REG_FIELD(ISP1763_HC_INT_PTD_SKIPMAP, 0, 15),
+ [HC_INT_PTD_LASTPTD] = REG_FIELD(ISP1763_HC_INT_PTD_LASTPTD, 0, 15),
+ [HC_ATL_PTD_DONEMAP] = REG_FIELD(ISP1763_HC_ATL_PTD_DONEMAP, 0, 15),
+ [HC_ATL_PTD_SKIPMAP] = REG_FIELD(ISP1763_HC_ATL_PTD_SKIPMAP, 0, 15),
+ [HC_ATL_PTD_LASTPTD] = REG_FIELD(ISP1763_HC_ATL_PTD_LASTPTD, 0, 15),
+ [PORT_OWNER] = REG_FIELD(ISP1763_HC_PORTSC1, 13, 13),
+ [PORT_POWER] = REG_FIELD(ISP1763_HC_PORTSC1, 12, 12),
+ [PORT_LSTATUS] = REG_FIELD(ISP1763_HC_PORTSC1, 10, 11),
+ [PORT_RESET] = REG_FIELD(ISP1763_HC_PORTSC1, 8, 8),
+ [PORT_SUSPEND] = REG_FIELD(ISP1763_HC_PORTSC1, 7, 7),
+ [PORT_RESUME] = REG_FIELD(ISP1763_HC_PORTSC1, 6, 6),
+ [PORT_PE] = REG_FIELD(ISP1763_HC_PORTSC1, 2, 2),
+ [PORT_CSC] = REG_FIELD(ISP1763_HC_PORTSC1, 1, 1),
+ [PORT_CONNECT] = REG_FIELD(ISP1763_HC_PORTSC1, 0, 0),
+ [HW_DATA_BUS_WIDTH] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 4, 4),
+ [HW_DACK_POL_HIGH] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 6, 6),
+ [HW_DREQ_POL_HIGH] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 5, 5),
+ [HW_INTF_LOCK] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 3, 3),
+ [HW_INTR_HIGH_ACT] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 2, 2),
+ [HW_INTR_EDGE_TRIG] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 1, 1),
+ [HW_GLOBAL_INTR_EN] = REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 0, 0),
+ [SW_RESET_RESET_ATX] = REG_FIELD(ISP1763_HC_RESET, 3, 3),
+ [SW_RESET_RESET_ALL] = REG_FIELD(ISP1763_HC_RESET, 0, 0),
+ [HC_CHIP_ID_HIGH] = REG_FIELD(ISP1763_HC_CHIP_ID, 0, 15),
+ [HC_CHIP_ID_LOW] = REG_FIELD(ISP1763_HC_CHIP_REV, 8, 15),
+ [HC_CHIP_REV] = REG_FIELD(ISP1763_HC_CHIP_REV, 0, 7),
+ [HC_SCRATCH] = REG_FIELD(ISP1763_HC_SCRATCH, 0, 15),
+ [ISO_BUF_FILL] = REG_FIELD(ISP1763_HC_BUFFER_STATUS, 2, 2),
+ [INT_BUF_FILL] = REG_FIELD(ISP1763_HC_BUFFER_STATUS, 1, 1),
+ [ATL_BUF_FILL] = REG_FIELD(ISP1763_HC_BUFFER_STATUS, 0, 0),
+ [MEM_START_ADDR] = REG_FIELD(ISP1763_HC_MEMORY, 0, 15),
+ [HC_DATA] = REG_FIELD(ISP1763_HC_DATA, 0, 15),
+ [HC_INTERRUPT] = REG_FIELD(ISP1763_HC_INTERRUPT, 0, 10),
+ [HC_ATL_IRQ_ENABLE] = REG_FIELD(ISP1763_HC_INTERRUPT_ENABLE, 8, 8),
+ [HC_INT_IRQ_ENABLE] = REG_FIELD(ISP1763_HC_INTERRUPT_ENABLE, 7, 7),
+ [HC_ISO_IRQ_MASK_OR] = REG_FIELD(ISP1763_HC_ISO_IRQ_MASK_OR, 0, 15),
+ [HC_INT_IRQ_MASK_OR] = REG_FIELD(ISP1763_HC_INT_IRQ_MASK_OR, 0, 15),
+ [HC_ATL_IRQ_MASK_OR] = REG_FIELD(ISP1763_HC_ATL_IRQ_MASK_OR, 0, 15),
+ [HC_ISO_IRQ_MASK_AND] = REG_FIELD(ISP1763_HC_ISO_IRQ_MASK_AND, 0, 15),
+ [HC_INT_IRQ_MASK_AND] = REG_FIELD(ISP1763_HC_INT_IRQ_MASK_AND, 0, 15),
+ [HC_ATL_IRQ_MASK_AND] = REG_FIELD(ISP1763_HC_ATL_IRQ_MASK_AND, 0, 15),
+ [HW_HC_2_DIS] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 15, 15),
+ [HW_OTG_DISABLE] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 10, 10),
+ [HW_SW_SEL_HC_DC] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 7, 7),
+ [HW_VBUS_DRV] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 4, 4),
+ [HW_SEL_CP_EXT] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 3, 3),
+ [HW_DM_PULLDOWN] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 2, 2),
+ [HW_DP_PULLDOWN] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 1, 1),
+ [HW_DP_PULLUP] = REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 0, 0),
+ [HW_HC_2_DIS_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 15, 15),
+ [HW_OTG_DISABLE_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 10, 10),
+ [HW_SW_SEL_HC_DC_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 7, 7),
+ [HW_VBUS_DRV_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 4, 4),
+ [HW_SEL_CP_EXT_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 3, 3),
+ [HW_DM_PULLDOWN_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 2, 2),
+ [HW_DP_PULLDOWN_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 1, 1),
+ [HW_DP_PULLUP_CLEAR] = REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 0, 0),
+};
+
+static const struct regmap_range isp1763_hc_volatile_ranges[] = {
+ regmap_reg_range(ISP1763_HC_USBCMD, ISP1763_HC_ATL_PTD_LASTPTD),
+ regmap_reg_range(ISP1763_HC_BUFFER_STATUS, ISP1763_HC_DATA),
+ regmap_reg_range(ISP1763_HC_INTERRUPT, ISP1763_HC_OTG_CTRL_CLEAR),
+};
+
+static const struct regmap_access_table isp1763_hc_volatile_table = {
+ .yes_ranges = isp1763_hc_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isp1763_hc_volatile_ranges),
+};
+
+static const struct regmap_config isp1763_hc_regmap_conf = {
+ .name = "isp1763-hc",
+ .reg_bits = 8,
+ .reg_stride = 2,
+ .val_bits = 16,
+ .fast_io = true,
+ .max_register = ISP1763_HC_OTG_CTRL_CLEAR,
+ .volatile_table = &isp1763_hc_volatile_table,
+};
+
+static const struct regmap_range isp176x_dc_volatile_ranges[] = {
+ regmap_reg_range(ISP176x_DC_EPMAXPKTSZ, ISP176x_DC_EPTYPE),
+ regmap_reg_range(ISP176x_DC_BUFLEN, ISP176x_DC_EPINDEX),
+};
+
+static const struct regmap_access_table isp176x_dc_volatile_table = {
+ .yes_ranges = isp176x_dc_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isp176x_dc_volatile_ranges),
+};
+
+static const struct regmap_config isp1761_dc_regmap_conf = {
+ .name = "isp1761-dc",
+ .reg_bits = 16,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .fast_io = true,
+ .max_register = ISP176x_DC_TESTMODE,
+ .volatile_table = &isp176x_dc_volatile_table,
+};
+
+static const struct reg_field isp1761_dc_reg_fields[] = {
+ [DC_DEVEN] = REG_FIELD(ISP176x_DC_ADDRESS, 7, 7),
+ [DC_DEVADDR] = REG_FIELD(ISP176x_DC_ADDRESS, 0, 6),
+ [DC_VBUSSTAT] = REG_FIELD(ISP176x_DC_MODE, 8, 8),
+ [DC_SFRESET] = REG_FIELD(ISP176x_DC_MODE, 4, 4),
+ [DC_GLINTENA] = REG_FIELD(ISP176x_DC_MODE, 3, 3),
+ [DC_CDBGMOD_ACK] = REG_FIELD(ISP176x_DC_INTCONF, 6, 6),
+ [DC_DDBGMODIN_ACK] = REG_FIELD(ISP176x_DC_INTCONF, 4, 4),
+ [DC_DDBGMODOUT_ACK] = REG_FIELD(ISP176x_DC_INTCONF, 2, 2),
+ [DC_INTPOL] = REG_FIELD(ISP176x_DC_INTCONF, 0, 0),
+ [DC_IEPRXTX_7] = REG_FIELD(ISP176x_DC_INTENABLE, 25, 25),
+ [DC_IEPRXTX_6] = REG_FIELD(ISP176x_DC_INTENABLE, 23, 23),
+ [DC_IEPRXTX_5] = REG_FIELD(ISP176x_DC_INTENABLE, 21, 21),
+ [DC_IEPRXTX_4] = REG_FIELD(ISP176x_DC_INTENABLE, 19, 19),
+ [DC_IEPRXTX_3] = REG_FIELD(ISP176x_DC_INTENABLE, 17, 17),
+ [DC_IEPRXTX_2] = REG_FIELD(ISP176x_DC_INTENABLE, 15, 15),
+ [DC_IEPRXTX_1] = REG_FIELD(ISP176x_DC_INTENABLE, 13, 13),
+ [DC_IEPRXTX_0] = REG_FIELD(ISP176x_DC_INTENABLE, 11, 11),
+ [DC_IEP0SETUP] = REG_FIELD(ISP176x_DC_INTENABLE, 8, 8),
+ [DC_IEVBUS] = REG_FIELD(ISP176x_DC_INTENABLE, 7, 7),
+ [DC_IEHS_STA] = REG_FIELD(ISP176x_DC_INTENABLE, 5, 5),
+ [DC_IERESM] = REG_FIELD(ISP176x_DC_INTENABLE, 4, 4),
+ [DC_IESUSP] = REG_FIELD(ISP176x_DC_INTENABLE, 3, 3),
+ [DC_IEBRST] = REG_FIELD(ISP176x_DC_INTENABLE, 0, 0),
+ [DC_EP0SETUP] = REG_FIELD(ISP176x_DC_EPINDEX, 5, 5),
+ [DC_ENDPIDX] = REG_FIELD(ISP176x_DC_EPINDEX, 1, 4),
+ [DC_EPDIR] = REG_FIELD(ISP176x_DC_EPINDEX, 0, 0),
+ [DC_CLBUF] = REG_FIELD(ISP176x_DC_CTRLFUNC, 4, 4),
+ [DC_VENDP] = REG_FIELD(ISP176x_DC_CTRLFUNC, 3, 3),
+ [DC_DSEN] = REG_FIELD(ISP176x_DC_CTRLFUNC, 2, 2),
+ [DC_STATUS] = REG_FIELD(ISP176x_DC_CTRLFUNC, 1, 1),
+ [DC_STALL] = REG_FIELD(ISP176x_DC_CTRLFUNC, 0, 0),
+ [DC_BUFLEN] = REG_FIELD(ISP176x_DC_BUFLEN, 0, 15),
+ [DC_FFOSZ] = REG_FIELD(ISP176x_DC_EPMAXPKTSZ, 0, 10),
+ [DC_EPENABLE] = REG_FIELD(ISP176x_DC_EPTYPE, 3, 3),
+ [DC_ENDPTYP] = REG_FIELD(ISP176x_DC_EPTYPE, 0, 1),
+ [DC_UFRAMENUM] = REG_FIELD(ISP176x_DC_FRAMENUM, 11, 13),
+ [DC_FRAMENUM] = REG_FIELD(ISP176x_DC_FRAMENUM, 0, 10),
+ [DC_CHIP_ID_HIGH] = REG_FIELD(ISP176x_DC_CHIPID, 16, 31),
+ [DC_CHIP_ID_LOW] = REG_FIELD(ISP176x_DC_CHIPID, 0, 15),
+ [DC_SCRATCH] = REG_FIELD(ISP176x_DC_SCRATCH, 0, 15),
+};
+
+static const struct regmap_range isp1763_dc_volatile_ranges[] = {
+ regmap_reg_range(ISP1763_DC_EPMAXPKTSZ, ISP1763_DC_EPTYPE),
+ regmap_reg_range(ISP1763_DC_BUFLEN, ISP1763_DC_EPINDEX),
+};
+
+static const struct regmap_access_table isp1763_dc_volatile_table = {
+ .yes_ranges = isp1763_dc_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isp1763_dc_volatile_ranges),
+};
+
+static const struct reg_field isp1763_dc_reg_fields[] = {
+ [DC_DEVEN] = REG_FIELD(ISP1763_DC_ADDRESS, 7, 7),
+ [DC_DEVADDR] = REG_FIELD(ISP1763_DC_ADDRESS, 0, 6),
+ [DC_VBUSSTAT] = REG_FIELD(ISP1763_DC_MODE, 8, 8),
+ [DC_SFRESET] = REG_FIELD(ISP1763_DC_MODE, 4, 4),
+ [DC_GLINTENA] = REG_FIELD(ISP1763_DC_MODE, 3, 3),
+ [DC_CDBGMOD_ACK] = REG_FIELD(ISP1763_DC_INTCONF, 6, 6),
+ [DC_DDBGMODIN_ACK] = REG_FIELD(ISP1763_DC_INTCONF, 4, 4),
+ [DC_DDBGMODOUT_ACK] = REG_FIELD(ISP1763_DC_INTCONF, 2, 2),
+ [DC_INTPOL] = REG_FIELD(ISP1763_DC_INTCONF, 0, 0),
+ [DC_IEPRXTX_7] = REG_FIELD(ISP1763_DC_INTENABLE, 25, 25),
+ [DC_IEPRXTX_6] = REG_FIELD(ISP1763_DC_INTENABLE, 23, 23),
+ [DC_IEPRXTX_5] = REG_FIELD(ISP1763_DC_INTENABLE, 21, 21),
+ [DC_IEPRXTX_4] = REG_FIELD(ISP1763_DC_INTENABLE, 19, 19),
+ [DC_IEPRXTX_3] = REG_FIELD(ISP1763_DC_INTENABLE, 17, 17),
+ [DC_IEPRXTX_2] = REG_FIELD(ISP1763_DC_INTENABLE, 15, 15),
+ [DC_IEPRXTX_1] = REG_FIELD(ISP1763_DC_INTENABLE, 13, 13),
+ [DC_IEPRXTX_0] = REG_FIELD(ISP1763_DC_INTENABLE, 11, 11),
+ [DC_IEP0SETUP] = REG_FIELD(ISP1763_DC_INTENABLE, 8, 8),
+ [DC_IEVBUS] = REG_FIELD(ISP1763_DC_INTENABLE, 7, 7),
+ [DC_IEHS_STA] = REG_FIELD(ISP1763_DC_INTENABLE, 5, 5),
+ [DC_IERESM] = REG_FIELD(ISP1763_DC_INTENABLE, 4, 4),
+ [DC_IESUSP] = REG_FIELD(ISP1763_DC_INTENABLE, 3, 3),
+ [DC_IEBRST] = REG_FIELD(ISP1763_DC_INTENABLE, 0, 0),
+ [DC_EP0SETUP] = REG_FIELD(ISP1763_DC_EPINDEX, 5, 5),
+ [DC_ENDPIDX] = REG_FIELD(ISP1763_DC_EPINDEX, 1, 4),
+ [DC_EPDIR] = REG_FIELD(ISP1763_DC_EPINDEX, 0, 0),
+ [DC_CLBUF] = REG_FIELD(ISP1763_DC_CTRLFUNC, 4, 4),
+ [DC_VENDP] = REG_FIELD(ISP1763_DC_CTRLFUNC, 3, 3),
+ [DC_DSEN] = REG_FIELD(ISP1763_DC_CTRLFUNC, 2, 2),
+ [DC_STATUS] = REG_FIELD(ISP1763_DC_CTRLFUNC, 1, 1),
+ [DC_STALL] = REG_FIELD(ISP1763_DC_CTRLFUNC, 0, 0),
+ [DC_BUFLEN] = REG_FIELD(ISP1763_DC_BUFLEN, 0, 15),
+ [DC_FFOSZ] = REG_FIELD(ISP1763_DC_EPMAXPKTSZ, 0, 10),
+ [DC_EPENABLE] = REG_FIELD(ISP1763_DC_EPTYPE, 3, 3),
+ [DC_ENDPTYP] = REG_FIELD(ISP1763_DC_EPTYPE, 0, 1),
+ [DC_UFRAMENUM] = REG_FIELD(ISP1763_DC_FRAMENUM, 11, 13),
+ [DC_FRAMENUM] = REG_FIELD(ISP1763_DC_FRAMENUM, 0, 10),
+ [DC_CHIP_ID_HIGH] = REG_FIELD(ISP1763_DC_CHIPID_HIGH, 0, 15),
+ [DC_CHIP_ID_LOW] = REG_FIELD(ISP1763_DC_CHIPID_LOW, 0, 15),
+ [DC_SCRATCH] = REG_FIELD(ISP1763_DC_SCRATCH, 0, 15),
+};
+
+static const struct regmap_config isp1763_dc_regmap_conf = {
+ .name = "isp1763-dc",
+ .reg_bits = 8,
+ .reg_stride = 2,
+ .val_bits = 16,
+ .fast_io = true,
+ .max_register = ISP1763_DC_TESTMODE,
+ .volatile_table = &isp1763_dc_volatile_table,
+};
+
int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
struct device *dev, unsigned int devflags)
{
+ const struct regmap_config *hc_regmap;
+ const struct reg_field *hc_reg_fields;
+ const struct regmap_config *dc_regmap;
+ const struct reg_field *dc_reg_fields;
struct isp1760_device *isp;
- bool udc_disabled = !(devflags & ISP1760_FLAG_ISP1761);
+ struct isp1760_hcd *hcd;
+ struct isp1760_udc *udc;
+ struct regmap_field *f;
+ bool udc_enabled;
int ret;
+ int i;
/*
* If neither the HCD not the UDC is enabled return an error, as no
* device would be registered.
*/
+ udc_enabled = ((devflags & ISP1760_FLAG_ISP1763) ||
+ (devflags & ISP1760_FLAG_ISP1761));
+
if ((!IS_ENABLED(CONFIG_USB_ISP1760_HCD) || usb_disabled()) &&
- (!IS_ENABLED(CONFIG_USB_ISP1761_UDC) || udc_disabled))
+ (!IS_ENABLED(CONFIG_USB_ISP1761_UDC) || !udc_enabled))
return -ENODEV;
isp = devm_kzalloc(dev, sizeof(*isp), GFP_KERNEL);
@@ -126,28 +500,81 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
isp->dev = dev;
isp->devflags = devflags;
+ hcd = &isp->hcd;
+ udc = &isp->udc;
+
+ hcd->is_isp1763 = !!(devflags & ISP1760_FLAG_ISP1763);
+ udc->is_isp1763 = !!(devflags & ISP1760_FLAG_ISP1763);
+
+ if (!hcd->is_isp1763 && (devflags & ISP1760_FLAG_BUS_WIDTH_8)) {
+ dev_err(dev, "isp1760/61 do not support data width 8\n");
+ return -EINVAL;
+ }
+
+ if (hcd->is_isp1763) {
+ hc_regmap = &isp1763_hc_regmap_conf;
+ hc_reg_fields = &isp1763_hc_reg_fields[0];
+ dc_regmap = &isp1763_dc_regmap_conf;
+ dc_reg_fields = &isp1763_dc_reg_fields[0];
+ } else {
+ hc_regmap = &isp1760_hc_regmap_conf;
+ hc_reg_fields = &isp1760_hc_reg_fields[0];
+ dc_regmap = &isp1761_dc_regmap_conf;
+ dc_reg_fields = &isp1761_dc_reg_fields[0];
+ }
isp->rst_gpio = devm_gpiod_get_optional(dev, NULL, GPIOD_OUT_HIGH);
if (IS_ERR(isp->rst_gpio))
return PTR_ERR(isp->rst_gpio);
- isp->regs = devm_ioremap_resource(dev, mem);
- if (IS_ERR(isp->regs))
- return PTR_ERR(isp->regs);
+ hcd->base = devm_ioremap_resource(dev, mem);
+ if (IS_ERR(hcd->base))
+ return PTR_ERR(hcd->base);
+
+ hcd->regs = devm_regmap_init_mmio(dev, hcd->base, hc_regmap);
+ if (IS_ERR(hcd->regs))
+ return PTR_ERR(hcd->regs);
+
+ for (i = 0; i < HC_FIELD_MAX; i++) {
+ f = devm_regmap_field_alloc(dev, hcd->regs, hc_reg_fields[i]);
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+
+ hcd->fields[i] = f;
+ }
+
+ udc->regs = devm_regmap_init_mmio(dev, hcd->base, dc_regmap);
+ if (IS_ERR(udc->regs))
+ return PTR_ERR(udc->regs);
+
+ for (i = 0; i < DC_FIELD_MAX; i++) {
+ f = devm_regmap_field_alloc(dev, udc->regs, dc_reg_fields[i]);
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+
+ udc->fields[i] = f;
+ }
+
+ if (hcd->is_isp1763)
+ hcd->memory_layout = &isp1763_memory_conf;
+ else
+ hcd->memory_layout = &isp176x_memory_conf;
- isp1760_init_core(isp);
+ ret = isp1760_init_core(isp);
+ if (ret < 0)
+ return ret;
if (IS_ENABLED(CONFIG_USB_ISP1760_HCD) && !usb_disabled()) {
- ret = isp1760_hcd_register(&isp->hcd, isp->regs, mem, irq,
+ ret = isp1760_hcd_register(hcd, mem, irq,
irqflags | IRQF_SHARED, dev);
if (ret < 0)
return ret;
}
- if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && !udc_disabled) {
+ if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && udc_enabled) {
ret = isp1760_udc_register(isp, irq, irqflags);
if (ret < 0) {
- isp1760_hcd_unregister(&isp->hcd);
+ isp1760_hcd_unregister(hcd);
return ret;
}
}
diff --git a/drivers/usb/isp1760/isp1760-core.h b/drivers/usb/isp1760/isp1760-core.h
index d9a0a4cc467c..91e0ee3992a7 100644
--- a/drivers/usb/isp1760/isp1760-core.h
+++ b/drivers/usb/isp1760/isp1760-core.h
@@ -2,18 +2,21 @@
/*
* Driver for the NXP ISP1760 chip
*
+ * Copyright 2021 Linaro, Rui Miguel Silva
* Copyright 2014 Laurent Pinchart
* Copyright 2007 Sebastian Siewior
*
* Contacts:
* Sebastian Siewior <bigeasy@linutronix.de>
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Rui Miguel Silva <rui.silva@linaro.org>
*/
#ifndef _ISP1760_CORE_H_
#define _ISP1760_CORE_H_
#include <linux/ioport.h>
+#include <linux/regmap.h>
#include "isp1760-hcd.h"
#include "isp1760-udc.h"
@@ -27,18 +30,19 @@ struct gpio_desc;
* a sane default configuration.
*/
#define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */
-#define ISP1760_FLAG_OTG_EN 0x00000004 /* Port 1 supports OTG */
+#define ISP1760_FLAG_PERIPHERAL_EN 0x00000004 /* Port 1 supports Peripheral mode*/
#define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */
#define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */
#define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */
#define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */
#define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */
#define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */
+#define ISP1760_FLAG_ISP1763 0x00000200 /* Chip is ISP1763 */
+#define ISP1760_FLAG_BUS_WIDTH_8 0x00000400 /* 8-bit data bus width */
struct isp1760_device {
struct device *dev;
- void __iomem *regs;
unsigned int devflags;
struct gpio_desc *rst_gpio;
@@ -52,14 +56,42 @@ void isp1760_unregister(struct device *dev);
void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
-static inline u32 isp1760_read32(void __iomem *base, u32 reg)
+static inline u32 isp1760_field_read(struct regmap_field **fields, u32 field)
{
- return readl(base + reg);
+ unsigned int val;
+
+ regmap_field_read(fields[field], &val);
+
+ return val;
+}
+
+static inline void isp1760_field_write(struct regmap_field **fields, u32 field,
+ u32 val)
+{
+ regmap_field_write(fields[field], val);
+}
+
+static inline void isp1760_field_set(struct regmap_field **fields, u32 field)
+{
+ isp1760_field_write(fields, field, 0xFFFFFFFF);
}
-static inline void isp1760_write32(void __iomem *base, u32 reg, u32 val)
+static inline void isp1760_field_clear(struct regmap_field **fields, u32 field)
{
- writel(val, base + reg);
+ isp1760_field_write(fields, field, 0);
}
+static inline u32 isp1760_reg_read(struct regmap *regs, u32 reg)
+{
+ unsigned int val;
+
+ regmap_read(regs, reg, &val);
+
+ return val;
+}
+
+static inline void isp1760_reg_write(struct regmap *regs, u32 reg, u32 val)
+{
+ regmap_write(regs, reg, val);
+}
#endif
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
index 33ae656c4b68..27168b4a4ef2 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c
@@ -11,6 +11,8 @@
*
* (c) 2011 Arvid Brodin <arvid.brodin@enea.com>
*
+ * Copyright 2021 Linaro, Rui Miguel Silva <rui.silva@linaro.org>
+ *
*/
#include <linux/gpio/consumer.h>
#include <linux/module.h>
@@ -44,6 +46,9 @@ static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd)
return *(struct isp1760_hcd **)hcd->hcd_priv;
}
+#define dw_to_le32(x) (cpu_to_le32((__force u32)x))
+#define le32_to_dw(x) ((__force __dw)(le32_to_cpu(x)))
+
/* urb state*/
#define DELETE_URB (0x0008)
#define NO_TRANSFER_ACTIVE (0xffffffff)
@@ -60,50 +65,69 @@ struct ptd {
__dw dw6;
__dw dw7;
};
+
+struct ptd_le32 {
+ __le32 dw0;
+ __le32 dw1;
+ __le32 dw2;
+ __le32 dw3;
+ __le32 dw4;
+ __le32 dw5;
+ __le32 dw6;
+ __le32 dw7;
+};
+
#define PTD_OFFSET 0x0400
#define ISO_PTD_OFFSET 0x0400
#define INT_PTD_OFFSET 0x0800
#define ATL_PTD_OFFSET 0x0c00
#define PAYLOAD_OFFSET 0x1000
-
-/* ATL */
-/* DW0 */
-#define DW0_VALID_BIT 1
-#define FROM_DW0_VALID(x) ((x) & 0x01)
-#define TO_DW0_LENGTH(x) (((u32) x) << 3)
-#define TO_DW0_MAXPACKET(x) (((u32) x) << 18)
-#define TO_DW0_MULTI(x) (((u32) x) << 29)
-#define TO_DW0_ENDPOINT(x) (((u32) x) << 31)
+#define ISP_BANK_0 0x00
+#define ISP_BANK_1 0x01
+#define ISP_BANK_2 0x02
+#define ISP_BANK_3 0x03
+
+#define TO_DW(x) ((__force __dw)x)
+#define TO_U32(x) ((__force u32)x)
+
+ /* ATL */
+ /* DW0 */
+#define DW0_VALID_BIT TO_DW(1)
+#define FROM_DW0_VALID(x) (TO_U32(x) & 0x01)
+#define TO_DW0_LENGTH(x) TO_DW((((u32)x) << 3))
+#define TO_DW0_MAXPACKET(x) TO_DW((((u32)x) << 18))
+#define TO_DW0_MULTI(x) TO_DW((((u32)x) << 29))
+#define TO_DW0_ENDPOINT(x) TO_DW((((u32)x) << 31))
/* DW1 */
-#define TO_DW1_DEVICE_ADDR(x) (((u32) x) << 3)
-#define TO_DW1_PID_TOKEN(x) (((u32) x) << 10)
-#define DW1_TRANS_BULK ((u32) 2 << 12)
-#define DW1_TRANS_INT ((u32) 3 << 12)
-#define DW1_TRANS_SPLIT ((u32) 1 << 14)
-#define DW1_SE_USB_LOSPEED ((u32) 2 << 16)
-#define TO_DW1_PORT_NUM(x) (((u32) x) << 18)
-#define TO_DW1_HUB_NUM(x) (((u32) x) << 25)
+#define TO_DW1_DEVICE_ADDR(x) TO_DW((((u32)x) << 3))
+#define TO_DW1_PID_TOKEN(x) TO_DW((((u32)x) << 10))
+#define DW1_TRANS_BULK TO_DW(((u32)2 << 12))
+#define DW1_TRANS_INT TO_DW(((u32)3 << 12))
+#define DW1_TRANS_SPLIT TO_DW(((u32)1 << 14))
+#define DW1_SE_USB_LOSPEED TO_DW(((u32)2 << 16))
+#define TO_DW1_PORT_NUM(x) TO_DW((((u32)x) << 18))
+#define TO_DW1_HUB_NUM(x) TO_DW((((u32)x) << 25))
/* DW2 */
-#define TO_DW2_DATA_START_ADDR(x) (((u32) x) << 8)
-#define TO_DW2_RL(x) ((x) << 25)
-#define FROM_DW2_RL(x) (((x) >> 25) & 0xf)
+#define TO_DW2_DATA_START_ADDR(x) TO_DW((((u32)x) << 8))
+#define TO_DW2_RL(x) TO_DW(((x) << 25))
+#define FROM_DW2_RL(x) ((TO_U32(x) >> 25) & 0xf)
/* DW3 */
-#define FROM_DW3_NRBYTESTRANSFERRED(x) ((x) & 0x7fff)
-#define FROM_DW3_SCS_NRBYTESTRANSFERRED(x) ((x) & 0x07ff)
-#define TO_DW3_NAKCOUNT(x) ((x) << 19)
-#define FROM_DW3_NAKCOUNT(x) (((x) >> 19) & 0xf)
-#define TO_DW3_CERR(x) ((x) << 23)
-#define FROM_DW3_CERR(x) (((x) >> 23) & 0x3)
-#define TO_DW3_DATA_TOGGLE(x) ((x) << 25)
-#define FROM_DW3_DATA_TOGGLE(x) (((x) >> 25) & 0x1)
-#define TO_DW3_PING(x) ((x) << 26)
-#define FROM_DW3_PING(x) (((x) >> 26) & 0x1)
-#define DW3_ERROR_BIT (1 << 28)
-#define DW3_BABBLE_BIT (1 << 29)
-#define DW3_HALT_BIT (1 << 30)
-#define DW3_ACTIVE_BIT (1 << 31)
-#define FROM_DW3_ACTIVE(x) (((x) >> 31) & 0x01)
+#define FROM_DW3_NRBYTESTRANSFERRED(x) TO_U32((x) & 0x3fff)
+#define FROM_DW3_SCS_NRBYTESTRANSFERRED(x) TO_U32((x) & 0x07ff)
+#define TO_DW3_NAKCOUNT(x) TO_DW(((x) << 19))
+#define FROM_DW3_NAKCOUNT(x) ((TO_U32(x) >> 19) & 0xf)
+#define TO_DW3_CERR(x) TO_DW(((x) << 23))
+#define FROM_DW3_CERR(x) ((TO_U32(x) >> 23) & 0x3)
+#define TO_DW3_DATA_TOGGLE(x) TO_DW(((x) << 25))
+#define FROM_DW3_DATA_TOGGLE(x) ((TO_U32(x) >> 25) & 0x1)
+#define TO_DW3_PING(x) TO_DW(((x) << 26))
+#define FROM_DW3_PING(x) ((TO_U32(x) >> 26) & 0x1)
+#define DW3_ERROR_BIT TO_DW((1 << 28))
+#define DW3_BABBLE_BIT TO_DW((1 << 29))
+#define DW3_HALT_BIT TO_DW((1 << 30))
+#define DW3_ACTIVE_BIT TO_DW((1 << 31))
+#define FROM_DW3_ACTIVE(x) ((TO_U32(x) >> 31) & 0x01)
#define INT_UNDERRUN (1 << 2)
#define INT_BABBLE (1 << 1)
@@ -116,7 +140,7 @@ struct ptd {
/* Errata 1 */
#define RL_COUNTER (0)
#define NAK_COUNTER (0)
-#define ERR_COUNTER (2)
+#define ERR_COUNTER (3)
struct isp1760_qtd {
u8 packet_type;
@@ -158,17 +182,124 @@ struct urb_listitem {
struct urb *urb;
};
+static const u32 isp1763_hc_portsc1_fields[] = {
+ [PORT_OWNER] = BIT(13),
+ [PORT_POWER] = BIT(12),
+ [PORT_LSTATUS] = BIT(10),
+ [PORT_RESET] = BIT(8),
+ [PORT_SUSPEND] = BIT(7),
+ [PORT_RESUME] = BIT(6),
+ [PORT_PE] = BIT(2),
+ [PORT_CSC] = BIT(1),
+ [PORT_CONNECT] = BIT(0),
+};
+
+/*
+ * Access functions for isp176x registers regmap fields
+ */
+static u32 isp1760_hcd_read(struct usb_hcd *hcd, u32 field)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ return isp1760_field_read(priv->fields, field);
+}
+
/*
- * Access functions for isp176x registers (addresses 0..0x03FF).
+ * We need, in isp1763, to write directly the values to the portsc1
+ * register so it will make the other values to trigger.
*/
-static u32 reg_read32(void __iomem *base, u32 reg)
+static void isp1760_hcd_portsc1_set_clear(struct isp1760_hcd *priv, u32 field,
+ u32 val)
+{
+ u32 bit = isp1763_hc_portsc1_fields[field];
+ u32 port_status = readl(priv->base + ISP1763_HC_PORTSC1);
+
+ if (val)
+ writel(port_status | bit, priv->base + ISP1763_HC_PORTSC1);
+ else
+ writel(port_status & ~bit, priv->base + ISP1763_HC_PORTSC1);
+}
+
+static void isp1760_hcd_write(struct usb_hcd *hcd, u32 field, u32 val)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (unlikely(priv->is_isp1763 &&
+ (field >= PORT_OWNER && field <= PORT_CONNECT)))
+ return isp1760_hcd_portsc1_set_clear(priv, field, val);
+
+ isp1760_field_write(priv->fields, field, val);
+}
+
+static void isp1760_hcd_set(struct usb_hcd *hcd, u32 field)
+{
+ isp1760_hcd_write(hcd, field, 0xFFFFFFFF);
+}
+
+static void isp1760_hcd_clear(struct usb_hcd *hcd, u32 field)
{
- return isp1760_read32(base, reg);
+ isp1760_hcd_write(hcd, field, 0);
+}
+
+static int isp1760_hcd_set_and_wait(struct usb_hcd *hcd, u32 field,
+ u32 timeout_us)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ u32 val;
+
+ isp1760_hcd_set(hcd, field);
+
+ return regmap_field_read_poll_timeout(priv->fields[field], val,
+ val, 10, timeout_us);
+}
+
+static int isp1760_hcd_set_and_wait_swap(struct usb_hcd *hcd, u32 field,
+ u32 timeout_us)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ u32 val;
+
+ isp1760_hcd_set(hcd, field);
+
+ return regmap_field_read_poll_timeout(priv->fields[field], val,
+ !val, 10, timeout_us);
+}
+
+static int isp1760_hcd_clear_and_wait(struct usb_hcd *hcd, u32 field,
+ u32 timeout_us)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ u32 val;
+
+ isp1760_hcd_clear(hcd, field);
+
+ return regmap_field_read_poll_timeout(priv->fields[field], val,
+ !val, 10, timeout_us);
+}
+
+static bool isp1760_hcd_is_set(struct usb_hcd *hcd, u32 field)
+{
+ return !!isp1760_hcd_read(hcd, field);
+}
+
+static bool isp1760_hcd_ppc_is_set(struct usb_hcd *hcd)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (priv->is_isp1763)
+ return true;
+
+ return isp1760_hcd_is_set(hcd, HCS_PPC);
}
-static void reg_write32(void __iomem *base, u32 reg, u32 val)
+static u32 isp1760_hcd_n_ports(struct usb_hcd *hcd)
{
- isp1760_write32(base, reg, val);
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (priv->is_isp1763)
+ return 1;
+
+ return isp1760_hcd_read(hcd, HCS_N_PORTS);
}
/*
@@ -176,7 +307,7 @@ static void reg_write32(void __iomem *base, u32 reg, u32 val)
*
* bank_reads8() reads memory locations prefetched by an earlier write to
* HC_MEMORY_REG (see isp176x datasheet). Unless you want to do fancy multi-
- * bank optimizations, you should use the more generic mem_reads8() below.
+ * bank optimizations, you should use the more generic mem_read() below.
*
* For access to ptd memory, use the specialized ptd_read() and ptd_write()
* below.
@@ -196,7 +327,7 @@ static void bank_reads8(void __iomem *src_base, u32 src_offset, u32 bank_addr,
if (src_offset < PAYLOAD_OFFSET) {
while (bytes >= 4) {
- *dst = le32_to_cpu(__raw_readl(src));
+ *dst = readl_relaxed(src);
bytes -= 4;
src++;
dst++;
@@ -217,7 +348,7 @@ static void bank_reads8(void __iomem *src_base, u32 src_offset, u32 bank_addr,
* allocated.
*/
if (src_offset < PAYLOAD_OFFSET)
- val = le32_to_cpu(__raw_readl(src));
+ val = readl_relaxed(src);
else
val = __raw_readl(src);
@@ -231,16 +362,59 @@ static void bank_reads8(void __iomem *src_base, u32 src_offset, u32 bank_addr,
}
}
-static void mem_reads8(void __iomem *src_base, u32 src_offset, void *dst,
- u32 bytes)
+static void isp1760_mem_read(struct usb_hcd *hcd, u32 src_offset, void *dst,
+ u32 bytes)
{
- reg_write32(src_base, HC_MEMORY_REG, src_offset + ISP_BANK(0));
- ndelay(90);
- bank_reads8(src_base, src_offset, ISP_BANK(0), dst, bytes);
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ isp1760_hcd_write(hcd, MEM_BANK_SEL, ISP_BANK_0);
+ isp1760_hcd_write(hcd, MEM_START_ADDR, src_offset);
+ ndelay(100);
+
+ bank_reads8(priv->base, src_offset, ISP_BANK_0, dst, bytes);
}
-static void mem_writes8(void __iomem *dst_base, u32 dst_offset,
- __u32 const *src, u32 bytes)
+/*
+ * ISP1763 does not have the banks direct host controller memory access,
+ * needs to use the HC_DATA register. Add data read/write according to this,
+ * and also adjust 16bit access.
+ */
+static void isp1763_mem_read(struct usb_hcd *hcd, u16 srcaddr,
+ u16 *dstptr, u32 bytes)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ /* Write the starting device address to the hcd memory register */
+ isp1760_reg_write(priv->regs, ISP1763_HC_MEMORY, srcaddr);
+ ndelay(100); /* Delay between consecutive access */
+
+ /* As long there are at least 16-bit to read ... */
+ while (bytes >= 2) {
+ *dstptr = __raw_readw(priv->base + ISP1763_HC_DATA);
+ bytes -= 2;
+ dstptr++;
+ }
+
+ /* If there are no more bytes to read, return */
+ if (bytes <= 0)
+ return;
+
+ *((u8 *)dstptr) = (u8)(readw(priv->base + ISP1763_HC_DATA) & 0xFF);
+}
+
+static void mem_read(struct usb_hcd *hcd, u32 src_offset, __u32 *dst,
+ u32 bytes)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (!priv->is_isp1763)
+ return isp1760_mem_read(hcd, src_offset, (u16 *)dst, bytes);
+
+ isp1763_mem_read(hcd, (u16)src_offset, (u16 *)dst, bytes);
+}
+
+static void isp1760_mem_write(void __iomem *dst_base, u32 dst_offset,
+ __u32 const *src, u32 bytes)
{
__u32 __iomem *dst;
@@ -248,7 +422,7 @@ static void mem_writes8(void __iomem *dst_base, u32 dst_offset,
if (dst_offset < PAYLOAD_OFFSET) {
while (bytes >= 4) {
- __raw_writel(cpu_to_le32(*src), dst);
+ writel_relaxed(*src, dst);
bytes -= 4;
src++;
dst++;
@@ -269,74 +443,168 @@ static void mem_writes8(void __iomem *dst_base, u32 dst_offset,
*/
if (dst_offset < PAYLOAD_OFFSET)
- __raw_writel(cpu_to_le32(*src), dst);
+ writel_relaxed(*src, dst);
else
__raw_writel(*src, dst);
}
+static void isp1763_mem_write(struct usb_hcd *hcd, u16 dstaddr, u16 *src,
+ u32 bytes)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ /* Write the starting device address to the hcd memory register */
+ isp1760_reg_write(priv->regs, ISP1763_HC_MEMORY, dstaddr);
+ ndelay(100); /* Delay between consecutive access */
+
+ while (bytes >= 2) {
+ /* Get and write the data; then adjust the data ptr and len */
+ __raw_writew(*src, priv->base + ISP1763_HC_DATA);
+ bytes -= 2;
+ src++;
+ }
+
+ /* If there are no more bytes to process, return */
+ if (bytes <= 0)
+ return;
+
+ /*
+ * The only way to get here is if there is a single byte left,
+ * get it and write it to the data reg;
+ */
+ writew(*((u8 *)src), priv->base + ISP1763_HC_DATA);
+}
+
+static void mem_write(struct usb_hcd *hcd, u32 dst_offset, __u32 *src,
+ u32 bytes)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (!priv->is_isp1763)
+ return isp1760_mem_write(priv->base, dst_offset, src, bytes);
+
+ isp1763_mem_write(hcd, dst_offset, (u16 *)src, bytes);
+}
+
/*
* Read and write ptds. 'ptd_offset' should be one of ISO_PTD_OFFSET,
* INT_PTD_OFFSET, and ATL_PTD_OFFSET. 'slot' should be less than 32.
*/
-static void ptd_read(void __iomem *base, u32 ptd_offset, u32 slot,
- struct ptd *ptd)
+static void isp1760_ptd_read(struct usb_hcd *hcd, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
{
- reg_write32(base, HC_MEMORY_REG,
- ISP_BANK(0) + ptd_offset + slot*sizeof(*ptd));
+ u16 src_offset = ptd_offset + slot * sizeof(*ptd);
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ isp1760_hcd_write(hcd, MEM_BANK_SEL, ISP_BANK_0);
+ isp1760_hcd_write(hcd, MEM_START_ADDR, src_offset);
ndelay(90);
- bank_reads8(base, ptd_offset + slot*sizeof(*ptd), ISP_BANK(0),
- (void *) ptd, sizeof(*ptd));
+
+ bank_reads8(priv->base, src_offset, ISP_BANK_0, (void *)ptd,
+ sizeof(*ptd));
+}
+
+static void isp1763_ptd_read(struct usb_hcd *hcd, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
+{
+ u16 src_offset = ptd_offset + slot * sizeof(*ptd);
+ struct ptd_le32 le32_ptd;
+
+ isp1763_mem_read(hcd, src_offset, (u16 *)&le32_ptd, sizeof(le32_ptd));
+ /* Normalize the data obtained */
+ ptd->dw0 = le32_to_dw(le32_ptd.dw0);
+ ptd->dw1 = le32_to_dw(le32_ptd.dw1);
+ ptd->dw2 = le32_to_dw(le32_ptd.dw2);
+ ptd->dw3 = le32_to_dw(le32_ptd.dw3);
+ ptd->dw4 = le32_to_dw(le32_ptd.dw4);
+ ptd->dw5 = le32_to_dw(le32_ptd.dw5);
+ ptd->dw6 = le32_to_dw(le32_ptd.dw6);
+ ptd->dw7 = le32_to_dw(le32_ptd.dw7);
+}
+
+static void ptd_read(struct usb_hcd *hcd, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (!priv->is_isp1763)
+ return isp1760_ptd_read(hcd, ptd_offset, slot, ptd);
+
+ isp1763_ptd_read(hcd, ptd_offset, slot, ptd);
+}
+
+static void isp1763_ptd_write(struct usb_hcd *hcd, u32 ptd_offset, u32 slot,
+ struct ptd *cpu_ptd)
+{
+ u16 dst_offset = ptd_offset + slot * sizeof(*cpu_ptd);
+ struct ptd_le32 ptd;
+
+ ptd.dw0 = dw_to_le32(cpu_ptd->dw0);
+ ptd.dw1 = dw_to_le32(cpu_ptd->dw1);
+ ptd.dw2 = dw_to_le32(cpu_ptd->dw2);
+ ptd.dw3 = dw_to_le32(cpu_ptd->dw3);
+ ptd.dw4 = dw_to_le32(cpu_ptd->dw4);
+ ptd.dw5 = dw_to_le32(cpu_ptd->dw5);
+ ptd.dw6 = dw_to_le32(cpu_ptd->dw6);
+ ptd.dw7 = dw_to_le32(cpu_ptd->dw7);
+
+ isp1763_mem_write(hcd, dst_offset, (u16 *)&ptd.dw0,
+ 8 * sizeof(ptd.dw0));
}
-static void ptd_write(void __iomem *base, u32 ptd_offset, u32 slot,
- struct ptd *ptd)
+static void isp1760_ptd_write(void __iomem *base, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
{
- mem_writes8(base, ptd_offset + slot*sizeof(*ptd) + sizeof(ptd->dw0),
- &ptd->dw1, 7*sizeof(ptd->dw1));
- /* Make sure dw0 gets written last (after other dw's and after payload)
- since it contains the enable bit */
+ u32 dst_offset = ptd_offset + slot * sizeof(*ptd);
+
+ /*
+ * Make sure dw0 gets written last (after other dw's and after payload)
+ * since it contains the enable bit
+ */
+ isp1760_mem_write(base, dst_offset + sizeof(ptd->dw0),
+ (__force u32 *)&ptd->dw1, 7 * sizeof(ptd->dw1));
wmb();
- mem_writes8(base, ptd_offset + slot*sizeof(*ptd), &ptd->dw0,
- sizeof(ptd->dw0));
+ isp1760_mem_write(base, dst_offset, (__force u32 *)&ptd->dw0,
+ sizeof(ptd->dw0));
}
+static void ptd_write(struct usb_hcd *hcd, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+ if (!priv->is_isp1763)
+ return isp1760_ptd_write(priv->base, ptd_offset, slot, ptd);
+
+ isp1763_ptd_write(hcd, ptd_offset, slot, ptd);
+}
/* memory management of the 60kb on the chip from 0x1000 to 0xffff */
static void init_memory(struct isp1760_hcd *priv)
{
- int i, curr;
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
+ int i, j, curr;
u32 payload_addr;
payload_addr = PAYLOAD_OFFSET;
- for (i = 0; i < BLOCK_1_NUM; i++) {
- priv->memory_pool[i].start = payload_addr;
- priv->memory_pool[i].size = BLOCK_1_SIZE;
- priv->memory_pool[i].free = 1;
- payload_addr += priv->memory_pool[i].size;
- }
-
- curr = i;
- for (i = 0; i < BLOCK_2_NUM; i++) {
- priv->memory_pool[curr + i].start = payload_addr;
- priv->memory_pool[curr + i].size = BLOCK_2_SIZE;
- priv->memory_pool[curr + i].free = 1;
- payload_addr += priv->memory_pool[curr + i].size;
- }
- curr = i;
- for (i = 0; i < BLOCK_3_NUM; i++) {
- priv->memory_pool[curr + i].start = payload_addr;
- priv->memory_pool[curr + i].size = BLOCK_3_SIZE;
- priv->memory_pool[curr + i].free = 1;
- payload_addr += priv->memory_pool[curr + i].size;
+ for (i = 0, curr = 0; i < ARRAY_SIZE(mem->blocks); i++) {
+ for (j = 0; j < mem->blocks[i]; j++, curr++) {
+ priv->memory_pool[curr + j].start = payload_addr;
+ priv->memory_pool[curr + j].size = mem->blocks_size[i];
+ priv->memory_pool[curr + j].free = 1;
+ payload_addr += priv->memory_pool[curr + j].size;
+ }
}
- WARN_ON(payload_addr - priv->memory_pool[0].start > PAYLOAD_AREA_SIZE);
+ WARN_ON(payload_addr - priv->memory_pool[0].start >
+ mem->payload_area_size);
}
static void alloc_mem(struct usb_hcd *hcd, struct isp1760_qtd *qtd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
int i;
WARN_ON(qtd->payload_addr);
@@ -344,7 +612,7 @@ static void alloc_mem(struct usb_hcd *hcd, struct isp1760_qtd *qtd)
if (!qtd->length)
return;
- for (i = 0; i < BLOCKS; i++) {
+ for (i = 0; i < mem->payload_blocks; i++) {
if (priv->memory_pool[i].size >= qtd->length &&
priv->memory_pool[i].free) {
priv->memory_pool[i].free = 0;
@@ -357,12 +625,13 @@ static void alloc_mem(struct usb_hcd *hcd, struct isp1760_qtd *qtd)
static void free_mem(struct usb_hcd *hcd, struct isp1760_qtd *qtd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
int i;
if (!qtd->payload_addr)
return;
- for (i = 0; i < BLOCKS; i++) {
+ for (i = 0; i < mem->payload_blocks; i++) {
if (priv->memory_pool[i].start == qtd->payload_addr) {
WARN_ON(priv->memory_pool[i].free);
priv->memory_pool[i].free = 1;
@@ -377,34 +646,15 @@ static void free_mem(struct usb_hcd *hcd, struct isp1760_qtd *qtd)
qtd->payload_addr = 0;
}
-static int handshake(struct usb_hcd *hcd, u32 reg,
- u32 mask, u32 done, int usec)
-{
- u32 result;
- int ret;
-
- ret = readl_poll_timeout_atomic(hcd->regs + reg, result,
- ((result & mask) == done ||
- result == U32_MAX), 1, usec);
- if (result == U32_MAX)
- return -ENODEV;
-
- return ret;
-}
-
/* reset a non-running (STS_HALT == 1) controller */
static int ehci_reset(struct usb_hcd *hcd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
- u32 command = reg_read32(hcd->regs, HC_USBCMD);
-
- command |= CMD_RESET;
- reg_write32(hcd->regs, HC_USBCMD, command);
hcd->state = HC_STATE_HALT;
priv->next_statechange = jiffies;
- return handshake(hcd, HC_USBCMD, CMD_RESET, 0, 250 * 1000);
+ return isp1760_hcd_set_and_wait_swap(hcd, CMD_RESET, 250 * 1000);
}
static struct isp1760_qh *qh_alloc(gfp_t flags)
@@ -432,8 +682,9 @@ static void qh_free(struct isp1760_qh *qh)
/* one-time init, only for memory state */
static int priv_init(struct usb_hcd *hcd)
{
- struct isp1760_hcd *priv = hcd_to_priv(hcd);
- u32 hcc_params;
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ u32 isoc_cache;
+ u32 isoc_thres;
int i;
spin_lock_init(&priv->lock);
@@ -447,13 +698,20 @@ static int priv_init(struct usb_hcd *hcd)
*/
priv->periodic_size = DEFAULT_I_TDPS;
+ if (priv->is_isp1763) {
+ priv->i_thresh = 2;
+ return 0;
+ }
+
/* controllers may cache some of the periodic schedule ... */
- hcc_params = reg_read32(hcd->regs, HC_HCCPARAMS);
+ isoc_cache = isp1760_hcd_read(hcd, HCC_ISOC_CACHE);
+ isoc_thres = isp1760_hcd_read(hcd, HCC_ISOC_THRES);
+
/* full frame cache */
- if (HCC_ISOC_CACHE(hcc_params))
+ if (isoc_cache)
priv->i_thresh = 8;
else /* N microframes cached */
- priv->i_thresh = 2 + HCC_ISOC_THRES(hcc_params);
+ priv->i_thresh = 2 + isoc_thres;
return 0;
}
@@ -461,15 +719,24 @@ static int priv_init(struct usb_hcd *hcd)
static int isp1760_hc_setup(struct usb_hcd *hcd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ u32 atx_reset;
int result;
- u32 scratch, hwmode;
+ u32 scratch;
+ u32 pattern;
+
+ if (priv->is_isp1763)
+ pattern = 0xcafe;
+ else
+ pattern = 0xdeadcafe;
+
+ isp1760_hcd_write(hcd, HC_SCRATCH, pattern);
- reg_write32(hcd->regs, HC_SCRATCH_REG, 0xdeadbabe);
/* Change bus pattern */
- scratch = reg_read32(hcd->regs, HC_CHIP_ID_REG);
- scratch = reg_read32(hcd->regs, HC_SCRATCH_REG);
- if (scratch != 0xdeadbabe) {
- dev_err(hcd->self.controller, "Scratch test failed.\n");
+ scratch = isp1760_hcd_read(hcd, HC_CHIP_ID_HIGH);
+ dev_err(hcd->self.controller, "Scratch test 0x%08x\n", scratch);
+ scratch = isp1760_hcd_read(hcd, HC_SCRATCH);
+ if (scratch != pattern) {
+ dev_err(hcd->self.controller, "Scratch test failed. 0x%08x\n", scratch);
return -ENODEV;
}
@@ -481,10 +748,13 @@ static int isp1760_hc_setup(struct usb_hcd *hcd)
* the host controller through the EHCI USB Command register. The device
* has been reset in core code anyway, so this shouldn't matter.
*/
- reg_write32(hcd->regs, HC_BUFFER_STATUS_REG, 0);
- reg_write32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG, NO_TRANSFER_ACTIVE);
- reg_write32(hcd->regs, HC_INT_PTD_SKIPMAP_REG, NO_TRANSFER_ACTIVE);
- reg_write32(hcd->regs, HC_ISO_PTD_SKIPMAP_REG, NO_TRANSFER_ACTIVE);
+ isp1760_hcd_clear(hcd, ISO_BUF_FILL);
+ isp1760_hcd_clear(hcd, INT_BUF_FILL);
+ isp1760_hcd_clear(hcd, ATL_BUF_FILL);
+
+ isp1760_hcd_set(hcd, HC_ATL_PTD_SKIPMAP);
+ isp1760_hcd_set(hcd, HC_INT_PTD_SKIPMAP);
+ isp1760_hcd_set(hcd, HC_ISO_PTD_SKIPMAP);
result = ehci_reset(hcd);
if (result)
@@ -493,14 +763,26 @@ static int isp1760_hc_setup(struct usb_hcd *hcd)
/* Step 11 passed */
/* ATL reset */
- hwmode = reg_read32(hcd->regs, HC_HW_MODE_CTRL) & ~ALL_ATX_RESET;
- reg_write32(hcd->regs, HC_HW_MODE_CTRL, hwmode | ALL_ATX_RESET);
+ if (priv->is_isp1763)
+ atx_reset = SW_RESET_RESET_ATX;
+ else
+ atx_reset = ALL_ATX_RESET;
+
+ isp1760_hcd_set(hcd, atx_reset);
mdelay(10);
- reg_write32(hcd->regs, HC_HW_MODE_CTRL, hwmode);
+ isp1760_hcd_clear(hcd, atx_reset);
- reg_write32(hcd->regs, HC_INTERRUPT_ENABLE, INTERRUPT_ENABLE_MASK);
+ if (priv->is_isp1763) {
+ isp1760_hcd_set(hcd, HW_OTG_DISABLE);
+ isp1760_hcd_set(hcd, HW_SW_SEL_HC_DC_CLEAR);
+ isp1760_hcd_set(hcd, HW_HC_2_DIS_CLEAR);
+ mdelay(10);
- priv->hcs_params = reg_read32(hcd->regs, HC_HCSPARAMS);
+ isp1760_hcd_set(hcd, HW_INTF_LOCK);
+ }
+
+ isp1760_hcd_set(hcd, HC_INT_IRQ_ENABLE);
+ isp1760_hcd_set(hcd, HC_ATL_IRQ_ENABLE);
return priv_init(hcd);
}
@@ -553,7 +835,7 @@ static void create_ptd_atl(struct isp1760_qh *qh,
ptd->dw0 |= TO_DW0_ENDPOINT(usb_pipeendpoint(qtd->urb->pipe));
/* DW1 */
- ptd->dw1 = usb_pipeendpoint(qtd->urb->pipe) >> 1;
+ ptd->dw1 = TO_DW((usb_pipeendpoint(qtd->urb->pipe) >> 1));
ptd->dw1 |= TO_DW1_DEVICE_ADDR(usb_pipedevice(qtd->urb->pipe));
ptd->dw1 |= TO_DW1_PID_TOKEN(qtd->packet_type);
@@ -575,7 +857,7 @@ static void create_ptd_atl(struct isp1760_qh *qh,
/* SE bit for Split INT transfers */
if (usb_pipeint(qtd->urb->pipe) &&
(qtd->urb->dev->speed == USB_SPEED_LOW))
- ptd->dw1 |= 2 << 16;
+ ptd->dw1 |= DW1_SE_USB_LOSPEED;
rl = 0;
nak = 0;
@@ -647,14 +929,14 @@ static void transform_add_int(struct isp1760_qh *qh,
* that number come from? 0xff seems to work fine...
*/
/* ptd->dw5 = 0x1c; */
- ptd->dw5 = 0xff; /* Execute Complete Split on any uFrame */
+ ptd->dw5 = TO_DW(0xff); /* Execute Complete Split on any uFrame */
}
period = period >> 1;/* Ensure equal or shorter period than requested */
period &= 0xf8; /* Mask off too large values and lowest unused 3 bits */
- ptd->dw2 |= period;
- ptd->dw4 = usof;
+ ptd->dw2 |= TO_DW(period);
+ ptd->dw4 = TO_DW(usof);
}
static void create_ptd_int(struct isp1760_qh *qh,
@@ -720,41 +1002,45 @@ static void start_bus_transfer(struct usb_hcd *hcd, u32 ptd_offset, int slot,
struct ptd *ptd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
int skip_map;
- WARN_ON((slot < 0) || (slot > 31));
+ WARN_ON((slot < 0) || (slot > mem->slot_num - 1));
WARN_ON(qtd->length && !qtd->payload_addr);
WARN_ON(slots[slot].qtd);
WARN_ON(slots[slot].qh);
WARN_ON(qtd->status != QTD_PAYLOAD_ALLOC);
+ if (priv->is_isp1763)
+ ndelay(100);
+
/* Make sure done map has not triggered from some unlinked transfer */
if (ptd_offset == ATL_PTD_OFFSET) {
- priv->atl_done_map |= reg_read32(hcd->regs,
- HC_ATL_PTD_DONEMAP_REG);
+ skip_map = isp1760_hcd_read(hcd, HC_ATL_PTD_SKIPMAP);
+ isp1760_hcd_write(hcd, HC_ATL_PTD_SKIPMAP,
+ skip_map | (1 << slot));
+ priv->atl_done_map |= isp1760_hcd_read(hcd, HC_ATL_PTD_DONEMAP);
priv->atl_done_map &= ~(1 << slot);
} else {
- priv->int_done_map |= reg_read32(hcd->regs,
- HC_INT_PTD_DONEMAP_REG);
+ skip_map = isp1760_hcd_read(hcd, HC_INT_PTD_SKIPMAP);
+ isp1760_hcd_write(hcd, HC_INT_PTD_SKIPMAP,
+ skip_map | (1 << slot));
+ priv->int_done_map |= isp1760_hcd_read(hcd, HC_INT_PTD_DONEMAP);
priv->int_done_map &= ~(1 << slot);
}
+ skip_map &= ~(1 << slot);
qh->slot = slot;
qtd->status = QTD_XFER_STARTED;
slots[slot].timestamp = jiffies;
slots[slot].qtd = qtd;
slots[slot].qh = qh;
- ptd_write(hcd->regs, ptd_offset, slot, ptd);
+ ptd_write(hcd, ptd_offset, slot, ptd);
- if (ptd_offset == ATL_PTD_OFFSET) {
- skip_map = reg_read32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG);
- skip_map &= ~(1 << qh->slot);
- reg_write32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG, skip_map);
- } else {
- skip_map = reg_read32(hcd->regs, HC_INT_PTD_SKIPMAP_REG);
- skip_map &= ~(1 << qh->slot);
- reg_write32(hcd->regs, HC_INT_PTD_SKIPMAP_REG, skip_map);
- }
+ if (ptd_offset == ATL_PTD_OFFSET)
+ isp1760_hcd_write(hcd, HC_ATL_PTD_SKIPMAP, skip_map);
+ else
+ isp1760_hcd_write(hcd, HC_INT_PTD_SKIPMAP, skip_map);
}
static int is_short_bulk(struct isp1760_qtd *qtd)
@@ -766,9 +1052,9 @@ static int is_short_bulk(struct isp1760_qtd *qtd)
static void collect_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh,
struct list_head *urb_list)
{
- int last_qtd;
struct isp1760_qtd *qtd, *qtd_next;
struct urb_listitem *urb_listitem;
+ int last_qtd;
list_for_each_entry_safe(qtd, qtd_next, &qh->qtd_list, qtd_list) {
if (qtd->status < QTD_XFER_COMPLETE)
@@ -783,9 +1069,9 @@ static void collect_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh,
if (qtd->actual_length) {
switch (qtd->packet_type) {
case IN_PID:
- mem_reads8(hcd->regs, qtd->payload_addr,
- qtd->data_buffer,
- qtd->actual_length);
+ mem_read(hcd, qtd->payload_addr,
+ qtd->data_buffer,
+ qtd->actual_length);
fallthrough;
case OUT_PID:
qtd->urb->actual_length +=
@@ -829,6 +1115,8 @@ static void collect_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh,
static void enqueue_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
+ int slot_num = mem->slot_num;
int ptd_offset;
struct isp1760_slotinfo *slots;
int curr_slot, free_slot;
@@ -855,7 +1143,7 @@ static void enqueue_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh)
}
free_slot = -1;
- for (curr_slot = 0; curr_slot < 32; curr_slot++) {
+ for (curr_slot = 0; curr_slot < slot_num; curr_slot++) {
if ((free_slot == -1) && (slots[curr_slot].qtd == NULL))
free_slot = curr_slot;
if (slots[curr_slot].qh == qh)
@@ -870,11 +1158,10 @@ static void enqueue_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh)
if ((qtd->length) && (!qtd->payload_addr))
break;
- if ((qtd->length) &&
- ((qtd->packet_type == SETUP_PID) ||
- (qtd->packet_type == OUT_PID))) {
- mem_writes8(hcd->regs, qtd->payload_addr,
- qtd->data_buffer, qtd->length);
+ if (qtd->length && (qtd->packet_type == SETUP_PID ||
+ qtd->packet_type == OUT_PID)) {
+ mem_write(hcd, qtd->payload_addr,
+ qtd->data_buffer, qtd->length);
}
qtd->status = QTD_PAYLOAD_ALLOC;
@@ -887,7 +1174,7 @@ static void enqueue_qtds(struct usb_hcd *hcd, struct isp1760_qh *qh)
"available for transfer\n", __func__);
*/
/* Start xfer for this endpoint if not already done */
- if ((curr_slot > 31) && (free_slot > -1)) {
+ if ((curr_slot > slot_num - 1) && (free_slot > -1)) {
if (usb_pipeint(qtd->urb->pipe))
create_ptd_int(qh, qtd, &ptd);
else
@@ -977,10 +1264,10 @@ static void schedule_ptds(struct usb_hcd *hcd)
static int check_int_transfer(struct usb_hcd *hcd, struct ptd *ptd,
struct urb *urb)
{
- __dw dw4;
+ u32 dw4;
int i;
- dw4 = ptd->dw4;
+ dw4 = TO_U32(ptd->dw4);
dw4 >>= 8;
/* FIXME: ISP1761 datasheet does not say what to do with these. Do we
@@ -1074,9 +1361,9 @@ static void handle_done_ptds(struct usb_hcd *hcd)
int modified;
int skip_map;
- skip_map = reg_read32(hcd->regs, HC_INT_PTD_SKIPMAP_REG);
+ skip_map = isp1760_hcd_read(hcd, HC_INT_PTD_SKIPMAP);
priv->int_done_map &= ~skip_map;
- skip_map = reg_read32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG);
+ skip_map = isp1760_hcd_read(hcd, HC_ATL_PTD_SKIPMAP);
priv->atl_done_map &= ~skip_map;
modified = priv->int_done_map || priv->atl_done_map;
@@ -1094,7 +1381,7 @@ static void handle_done_ptds(struct usb_hcd *hcd)
continue;
}
ptd_offset = INT_PTD_OFFSET;
- ptd_read(hcd->regs, INT_PTD_OFFSET, slot, &ptd);
+ ptd_read(hcd, INT_PTD_OFFSET, slot, &ptd);
state = check_int_transfer(hcd, &ptd,
slots[slot].qtd->urb);
} else {
@@ -1109,7 +1396,7 @@ static void handle_done_ptds(struct usb_hcd *hcd)
continue;
}
ptd_offset = ATL_PTD_OFFSET;
- ptd_read(hcd->regs, ATL_PTD_OFFSET, slot, &ptd);
+ ptd_read(hcd, ATL_PTD_OFFSET, slot, &ptd);
state = check_atl_transfer(hcd, &ptd,
slots[slot].qtd->urb);
}
@@ -1134,7 +1421,7 @@ static void handle_done_ptds(struct usb_hcd *hcd)
qtd->status = QTD_XFER_COMPLETE;
if (list_is_last(&qtd->qtd_list, &qh->qtd_list) ||
- is_short_bulk(qtd))
+ is_short_bulk(qtd))
qtd = NULL;
else
qtd = list_entry(qtd->qtd_list.next,
@@ -1202,25 +1489,30 @@ static void handle_done_ptds(struct usb_hcd *hcd)
static irqreturn_t isp1760_irq(struct usb_hcd *hcd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
- u32 imask;
irqreturn_t irqret = IRQ_NONE;
+ u32 int_reg;
+ u32 imask;
spin_lock(&priv->lock);
if (!(hcd->state & HC_STATE_RUNNING))
goto leave;
- imask = reg_read32(hcd->regs, HC_INTERRUPT_REG);
+ imask = isp1760_hcd_read(hcd, HC_INTERRUPT);
if (unlikely(!imask))
goto leave;
- reg_write32(hcd->regs, HC_INTERRUPT_REG, imask); /* Clear */
- priv->int_done_map |= reg_read32(hcd->regs, HC_INT_PTD_DONEMAP_REG);
- priv->atl_done_map |= reg_read32(hcd->regs, HC_ATL_PTD_DONEMAP_REG);
+ int_reg = priv->is_isp1763 ? ISP1763_HC_INTERRUPT :
+ ISP176x_HC_INTERRUPT;
+ isp1760_reg_write(priv->regs, int_reg, imask);
+
+ priv->int_done_map |= isp1760_hcd_read(hcd, HC_INT_PTD_DONEMAP);
+ priv->atl_done_map |= isp1760_hcd_read(hcd, HC_ATL_PTD_DONEMAP);
handle_done_ptds(hcd);
irqret = IRQ_HANDLED;
+
leave:
spin_unlock(&priv->lock);
@@ -1261,17 +1553,18 @@ static void errata2_function(struct timer_list *unused)
{
struct usb_hcd *hcd = errata2_timer_hcd;
struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
int slot;
struct ptd ptd;
unsigned long spinflags;
spin_lock_irqsave(&priv->lock, spinflags);
- for (slot = 0; slot < 32; slot++)
+ for (slot = 0; slot < mem->slot_num; slot++)
if (priv->atl_slots[slot].qh && time_after(jiffies,
priv->atl_slots[slot].timestamp +
msecs_to_jiffies(SLOT_TIMEOUT))) {
- ptd_read(hcd->regs, ATL_PTD_OFFSET, slot, &ptd);
+ ptd_read(hcd, ATL_PTD_OFFSET, slot, &ptd);
if (!FROM_DW0_VALID(ptd.dw0) &&
!FROM_DW3_ACTIVE(ptd.dw3))
priv->atl_done_map |= 1 << slot;
@@ -1286,35 +1579,120 @@ static void errata2_function(struct timer_list *unused)
add_timer(&errata2_timer);
}
+static int isp1763_run(struct usb_hcd *hcd)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ int retval;
+ u32 chipid_h;
+ u32 chipid_l;
+ u32 chip_rev;
+ u32 ptd_atl_int;
+ u32 ptd_iso;
+
+ hcd->uses_new_polling = 1;
+ hcd->state = HC_STATE_RUNNING;
+
+ chipid_h = isp1760_hcd_read(hcd, HC_CHIP_ID_HIGH);
+ chipid_l = isp1760_hcd_read(hcd, HC_CHIP_ID_LOW);
+ chip_rev = isp1760_hcd_read(hcd, HC_CHIP_REV);
+ dev_info(hcd->self.controller, "USB ISP %02x%02x HW rev. %d started\n",
+ chipid_h, chipid_l, chip_rev);
+
+ isp1760_hcd_clear(hcd, ISO_BUF_FILL);
+ isp1760_hcd_clear(hcd, INT_BUF_FILL);
+ isp1760_hcd_clear(hcd, ATL_BUF_FILL);
+
+ isp1760_hcd_set(hcd, HC_ATL_PTD_SKIPMAP);
+ isp1760_hcd_set(hcd, HC_INT_PTD_SKIPMAP);
+ isp1760_hcd_set(hcd, HC_ISO_PTD_SKIPMAP);
+ ndelay(100);
+ isp1760_hcd_clear(hcd, HC_ATL_PTD_DONEMAP);
+ isp1760_hcd_clear(hcd, HC_INT_PTD_DONEMAP);
+ isp1760_hcd_clear(hcd, HC_ISO_PTD_DONEMAP);
+
+ isp1760_hcd_set(hcd, HW_OTG_DISABLE);
+ isp1760_reg_write(priv->regs, ISP1763_HC_OTG_CTRL_CLEAR, BIT(7));
+ isp1760_reg_write(priv->regs, ISP1763_HC_OTG_CTRL_CLEAR, BIT(15));
+ mdelay(10);
+
+ isp1760_hcd_set(hcd, HC_INT_IRQ_ENABLE);
+ isp1760_hcd_set(hcd, HC_ATL_IRQ_ENABLE);
+
+ isp1760_hcd_set(hcd, HW_GLOBAL_INTR_EN);
+
+ isp1760_hcd_clear(hcd, HC_ATL_IRQ_MASK_AND);
+ isp1760_hcd_clear(hcd, HC_INT_IRQ_MASK_AND);
+ isp1760_hcd_clear(hcd, HC_ISO_IRQ_MASK_AND);
+
+ isp1760_hcd_set(hcd, HC_ATL_IRQ_MASK_OR);
+ isp1760_hcd_set(hcd, HC_INT_IRQ_MASK_OR);
+ isp1760_hcd_set(hcd, HC_ISO_IRQ_MASK_OR);
+
+ ptd_atl_int = 0x8000;
+ ptd_iso = 0x0001;
+
+ isp1760_hcd_write(hcd, HC_ATL_PTD_LASTPTD, ptd_atl_int);
+ isp1760_hcd_write(hcd, HC_INT_PTD_LASTPTD, ptd_atl_int);
+ isp1760_hcd_write(hcd, HC_ISO_PTD_LASTPTD, ptd_iso);
+
+ isp1760_hcd_set(hcd, ATL_BUF_FILL);
+ isp1760_hcd_set(hcd, INT_BUF_FILL);
+
+ isp1760_hcd_clear(hcd, CMD_LRESET);
+ isp1760_hcd_clear(hcd, CMD_RESET);
+
+ retval = isp1760_hcd_set_and_wait(hcd, CMD_RUN, 250 * 1000);
+ if (retval)
+ return retval;
+
+ down_write(&ehci_cf_port_reset_rwsem);
+ retval = isp1760_hcd_set_and_wait(hcd, FLAG_CF, 250 * 1000);
+ up_write(&ehci_cf_port_reset_rwsem);
+ if (retval)
+ return retval;
+
+ return 0;
+}
+
static int isp1760_run(struct usb_hcd *hcd)
{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
int retval;
- u32 temp;
- u32 command;
- u32 chipid;
+ u32 chipid_h;
+ u32 chipid_l;
+ u32 chip_rev;
+ u32 ptd_atl_int;
+ u32 ptd_iso;
+
+ /*
+ * ISP1763 have some differences in the setup and order to enable
+ * the ports, disable otg, setup buffers, and ATL, INT, ISO status.
+ * So, just handle it a separate sequence.
+ */
+ if (priv->is_isp1763)
+ return isp1763_run(hcd);
hcd->uses_new_polling = 1;
hcd->state = HC_STATE_RUNNING;
/* Set PTD interrupt AND & OR maps */
- reg_write32(hcd->regs, HC_ATL_IRQ_MASK_AND_REG, 0);
- reg_write32(hcd->regs, HC_ATL_IRQ_MASK_OR_REG, 0xffffffff);
- reg_write32(hcd->regs, HC_INT_IRQ_MASK_AND_REG, 0);
- reg_write32(hcd->regs, HC_INT_IRQ_MASK_OR_REG, 0xffffffff);
- reg_write32(hcd->regs, HC_ISO_IRQ_MASK_AND_REG, 0);
- reg_write32(hcd->regs, HC_ISO_IRQ_MASK_OR_REG, 0xffffffff);
+ isp1760_hcd_clear(hcd, HC_ATL_IRQ_MASK_AND);
+ isp1760_hcd_clear(hcd, HC_INT_IRQ_MASK_AND);
+ isp1760_hcd_clear(hcd, HC_ISO_IRQ_MASK_AND);
+
+ isp1760_hcd_set(hcd, HC_ATL_IRQ_MASK_OR);
+ isp1760_hcd_set(hcd, HC_INT_IRQ_MASK_OR);
+ isp1760_hcd_set(hcd, HC_ISO_IRQ_MASK_OR);
+
/* step 23 passed */
- temp = reg_read32(hcd->regs, HC_HW_MODE_CTRL);
- reg_write32(hcd->regs, HC_HW_MODE_CTRL, temp | HW_GLOBAL_INTR_EN);
+ isp1760_hcd_set(hcd, HW_GLOBAL_INTR_EN);
- command = reg_read32(hcd->regs, HC_USBCMD);
- command &= ~(CMD_LRESET|CMD_RESET);
- command |= CMD_RUN;
- reg_write32(hcd->regs, HC_USBCMD, command);
+ isp1760_hcd_clear(hcd, CMD_LRESET);
+ isp1760_hcd_clear(hcd, CMD_RESET);
- retval = handshake(hcd, HC_USBCMD, CMD_RUN, CMD_RUN, 250 * 1000);
+ retval = isp1760_hcd_set_and_wait(hcd, CMD_RUN, 250 * 1000);
if (retval)
return retval;
@@ -1324,9 +1702,8 @@ static int isp1760_run(struct usb_hcd *hcd)
* the semaphore while doing so.
*/
down_write(&ehci_cf_port_reset_rwsem);
- reg_write32(hcd->regs, HC_CONFIGFLAG, FLAG_CF);
- retval = handshake(hcd, HC_CONFIGFLAG, FLAG_CF, FLAG_CF, 250 * 1000);
+ retval = isp1760_hcd_set_and_wait(hcd, FLAG_CF, 250 * 1000);
up_write(&ehci_cf_port_reset_rwsem);
if (retval)
return retval;
@@ -1336,21 +1713,28 @@ static int isp1760_run(struct usb_hcd *hcd)
errata2_timer.expires = jiffies + msecs_to_jiffies(SLOT_CHECK_PERIOD);
add_timer(&errata2_timer);
- chipid = reg_read32(hcd->regs, HC_CHIP_ID_REG);
- dev_info(hcd->self.controller, "USB ISP %04x HW rev. %d started\n",
- chipid & 0xffff, chipid >> 16);
+ chipid_h = isp1760_hcd_read(hcd, HC_CHIP_ID_HIGH);
+ chipid_l = isp1760_hcd_read(hcd, HC_CHIP_ID_LOW);
+ chip_rev = isp1760_hcd_read(hcd, HC_CHIP_REV);
+ dev_info(hcd->self.controller, "USB ISP %02x%02x HW rev. %d started\n",
+ chipid_h, chipid_l, chip_rev);
/* PTD Register Init Part 2, Step 28 */
/* Setup registers controlling PTD checking */
- reg_write32(hcd->regs, HC_ATL_PTD_LASTPTD_REG, 0x80000000);
- reg_write32(hcd->regs, HC_INT_PTD_LASTPTD_REG, 0x80000000);
- reg_write32(hcd->regs, HC_ISO_PTD_LASTPTD_REG, 0x00000001);
- reg_write32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG, 0xffffffff);
- reg_write32(hcd->regs, HC_INT_PTD_SKIPMAP_REG, 0xffffffff);
- reg_write32(hcd->regs, HC_ISO_PTD_SKIPMAP_REG, 0xffffffff);
- reg_write32(hcd->regs, HC_BUFFER_STATUS_REG,
- ATL_BUF_FILL | INT_BUF_FILL);
+ ptd_atl_int = 0x80000000;
+ ptd_iso = 0x00000001;
+
+ isp1760_hcd_write(hcd, HC_ATL_PTD_LASTPTD, ptd_atl_int);
+ isp1760_hcd_write(hcd, HC_INT_PTD_LASTPTD, ptd_atl_int);
+ isp1760_hcd_write(hcd, HC_ISO_PTD_LASTPTD, ptd_iso);
+
+ isp1760_hcd_set(hcd, HC_ATL_PTD_SKIPMAP);
+ isp1760_hcd_set(hcd, HC_INT_PTD_SKIPMAP);
+ isp1760_hcd_set(hcd, HC_ISO_PTD_SKIPMAP);
+
+ isp1760_hcd_set(hcd, ATL_BUF_FILL);
+ isp1760_hcd_set(hcd, INT_BUF_FILL);
/* GRR this is run-once init(), being done every time the HC starts.
* So long as they're part of class devices, we can't do it init()
@@ -1363,8 +1747,6 @@ static int qtd_fill(struct isp1760_qtd *qtd, void *databuffer, size_t len)
{
qtd->data_buffer = databuffer;
- if (len > MAX_PAYLOAD_SIZE)
- len = MAX_PAYLOAD_SIZE;
qtd->length = len;
return qtd->length;
@@ -1388,6 +1770,8 @@ static void qtd_list_free(struct list_head *qtd_list)
static void packetize_urb(struct usb_hcd *hcd,
struct urb *urb, struct list_head *head, gfp_t flags)
{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ const struct isp1760_memory_layout *mem = priv->memory_layout;
struct isp1760_qtd *qtd;
void *buf;
int len, maxpacketsize;
@@ -1440,6 +1824,10 @@ static void packetize_urb(struct usb_hcd *hcd,
qtd = qtd_alloc(flags, urb, packet_type);
if (!qtd)
goto cleanup;
+
+ if (len > mem->blocks_size[ISP176x_BLOCK_NUM - 1])
+ len = mem->blocks_size[ISP176x_BLOCK_NUM - 1];
+
this_qtd_len = qtd_fill(qtd, buf, len);
list_add_tail(&qtd->qtd_list, head);
@@ -1584,15 +1972,16 @@ static void kill_transfer(struct usb_hcd *hcd, struct urb *urb,
/* We need to forcefully reclaim the slot since some transfers never
return, e.g. interrupt transfers and NAKed bulk transfers. */
if (usb_pipecontrol(urb->pipe) || usb_pipebulk(urb->pipe)) {
- skip_map = reg_read32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG);
+ skip_map = isp1760_hcd_read(hcd, HC_ATL_PTD_SKIPMAP);
skip_map |= (1 << qh->slot);
- reg_write32(hcd->regs, HC_ATL_PTD_SKIPMAP_REG, skip_map);
+ isp1760_hcd_write(hcd, HC_ATL_PTD_SKIPMAP, skip_map);
+ ndelay(100);
priv->atl_slots[qh->slot].qh = NULL;
priv->atl_slots[qh->slot].qtd = NULL;
} else {
- skip_map = reg_read32(hcd->regs, HC_INT_PTD_SKIPMAP_REG);
+ skip_map = isp1760_hcd_read(hcd, HC_INT_PTD_SKIPMAP);
skip_map |= (1 << qh->slot);
- reg_write32(hcd->regs, HC_INT_PTD_SKIPMAP_REG, skip_map);
+ isp1760_hcd_write(hcd, HC_INT_PTD_SKIPMAP, skip_map);
priv->int_slots[qh->slot].qh = NULL;
priv->int_slots[qh->slot].qtd = NULL;
}
@@ -1705,8 +2094,7 @@ out:
static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
- u32 temp, status = 0;
- u32 mask;
+ u32 status = 0;
int retval = 1;
unsigned long flags;
@@ -1716,17 +2104,13 @@ static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
/* init status to no-changes */
buf[0] = 0;
- mask = PORT_CSC;
spin_lock_irqsave(&priv->lock, flags);
- temp = reg_read32(hcd->regs, HC_PORTSC1);
- if (temp & PORT_OWNER) {
- if (temp & PORT_CSC) {
- temp &= ~PORT_CSC;
- reg_write32(hcd->regs, HC_PORTSC1, temp);
- goto done;
- }
+ if (isp1760_hcd_is_set(hcd, PORT_OWNER) &&
+ isp1760_hcd_is_set(hcd, PORT_CSC)) {
+ isp1760_hcd_clear(hcd, PORT_CSC);
+ goto done;
}
/*
@@ -1735,11 +2119,9 @@ static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
* high-speed device is switched over to the companion
* controller by the user.
*/
-
- if ((temp & mask) != 0
- || ((temp & PORT_RESUME) != 0
- && time_after_eq(jiffies,
- priv->reset_done))) {
+ if (isp1760_hcd_is_set(hcd, PORT_CSC) ||
+ (isp1760_hcd_is_set(hcd, PORT_RESUME) &&
+ time_after_eq(jiffies, priv->reset_done))) {
buf [0] |= 1 << (0 + 1);
status = STS_PCD;
}
@@ -1752,9 +2134,11 @@ done:
static void isp1760_hub_descriptor(struct isp1760_hcd *priv,
struct usb_hub_descriptor *desc)
{
- int ports = HCS_N_PORTS(priv->hcs_params);
+ int ports;
u16 temp;
+ ports = isp1760_hcd_n_ports(priv->hcd);
+
desc->bDescriptorType = USB_DT_HUB;
/* priv 1.0, 2.3.9 says 20ms max */
desc->bPwrOn2PwrGood = 10;
@@ -1770,7 +2154,7 @@ static void isp1760_hub_descriptor(struct isp1760_hcd *priv,
/* per-port overcurrent reporting */
temp = HUB_CHAR_INDV_PORT_OCPM;
- if (HCS_PPC(priv->hcs_params))
+ if (isp1760_hcd_ppc_is_set(priv->hcd))
/* per-port power control */
temp |= HUB_CHAR_INDV_PORT_LPSM;
else
@@ -1781,38 +2165,37 @@ static void isp1760_hub_descriptor(struct isp1760_hcd *priv,
#define PORT_WAKE_BITS (PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E)
-static int check_reset_complete(struct usb_hcd *hcd, int index,
- int port_status)
+static void check_reset_complete(struct usb_hcd *hcd, int index)
{
- if (!(port_status & PORT_CONNECT))
- return port_status;
+ if (!(isp1760_hcd_is_set(hcd, PORT_CONNECT)))
+ return;
/* if reset finished and it's still not enabled -- handoff */
- if (!(port_status & PORT_PE)) {
-
+ if (!isp1760_hcd_is_set(hcd, PORT_PE)) {
dev_info(hcd->self.controller,
- "port %d full speed --> companion\n",
- index + 1);
+ "port %d full speed --> companion\n", index + 1);
- port_status |= PORT_OWNER;
- port_status &= ~PORT_RWC_BITS;
- reg_write32(hcd->regs, HC_PORTSC1, port_status);
+ isp1760_hcd_set(hcd, PORT_OWNER);
- } else
+ isp1760_hcd_clear(hcd, PORT_CSC);
+ } else {
dev_info(hcd->self.controller, "port %d high speed\n",
- index + 1);
+ index + 1);
+ }
- return port_status;
+ return;
}
static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
u16 wValue, u16 wIndex, char *buf, u16 wLength)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
- int ports = HCS_N_PORTS(priv->hcs_params);
- u32 temp, status;
+ u32 status;
unsigned long flags;
int retval = 0;
+ int ports;
+
+ ports = isp1760_hcd_n_ports(hcd);
/*
* FIXME: support SetPortFeatures USB_PORT_FEAT_INDICATOR.
@@ -1837,7 +2220,6 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
if (!wIndex || wIndex > ports)
goto error;
wIndex--;
- temp = reg_read32(hcd->regs, HC_PORTSC1);
/*
* Even if OWNER is set, so the port is owned by the
@@ -1848,22 +2230,22 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
- reg_write32(hcd->regs, HC_PORTSC1, temp & ~PORT_PE);
+ isp1760_hcd_clear(hcd, PORT_PE);
break;
case USB_PORT_FEAT_C_ENABLE:
/* XXX error? */
break;
case USB_PORT_FEAT_SUSPEND:
- if (temp & PORT_RESET)
+ if (isp1760_hcd_is_set(hcd, PORT_RESET))
goto error;
- if (temp & PORT_SUSPEND) {
- if ((temp & PORT_PE) == 0)
+ if (isp1760_hcd_is_set(hcd, PORT_SUSPEND)) {
+ if (!isp1760_hcd_is_set(hcd, PORT_PE))
goto error;
/* resume signaling for 20 msec */
- temp &= ~(PORT_RWC_BITS);
- reg_write32(hcd->regs, HC_PORTSC1,
- temp | PORT_RESUME);
+ isp1760_hcd_clear(hcd, PORT_CSC);
+ isp1760_hcd_set(hcd, PORT_RESUME);
+
priv->reset_done = jiffies +
msecs_to_jiffies(USB_RESUME_TIMEOUT);
}
@@ -1872,12 +2254,11 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
/* we auto-clear this feature */
break;
case USB_PORT_FEAT_POWER:
- if (HCS_PPC(priv->hcs_params))
- reg_write32(hcd->regs, HC_PORTSC1,
- temp & ~PORT_POWER);
+ if (isp1760_hcd_ppc_is_set(hcd))
+ isp1760_hcd_clear(hcd, PORT_POWER);
break;
case USB_PORT_FEAT_C_CONNECTION:
- reg_write32(hcd->regs, HC_PORTSC1, temp | PORT_CSC);
+ isp1760_hcd_set(hcd, PORT_CSC);
break;
case USB_PORT_FEAT_C_OVER_CURRENT:
/* XXX error ?*/
@@ -1888,7 +2269,7 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
default:
goto error;
}
- reg_read32(hcd->regs, HC_USBCMD);
+ isp1760_hcd_read(hcd, CMD_RUN);
break;
case GetHubDescriptor:
isp1760_hub_descriptor(priv, (struct usb_hub_descriptor *)
@@ -1903,15 +2284,13 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
goto error;
wIndex--;
status = 0;
- temp = reg_read32(hcd->regs, HC_PORTSC1);
/* wPortChange bits */
- if (temp & PORT_CSC)
+ if (isp1760_hcd_is_set(hcd, PORT_CSC))
status |= USB_PORT_STAT_C_CONNECTION << 16;
-
/* whoever resumes must GetPortStatus to complete it!! */
- if (temp & PORT_RESUME) {
+ if (isp1760_hcd_is_set(hcd, PORT_RESUME)) {
dev_err(hcd->self.controller, "Port resume should be skipped.\n");
/* Remote Wakeup received? */
@@ -1930,44 +2309,39 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
priv->reset_done = 0;
/* stop resume signaling */
- temp = reg_read32(hcd->regs, HC_PORTSC1);
- reg_write32(hcd->regs, HC_PORTSC1,
- temp & ~(PORT_RWC_BITS | PORT_RESUME));
- retval = handshake(hcd, HC_PORTSC1,
- PORT_RESUME, 0, 2000 /* 2msec */);
+ isp1760_hcd_clear(hcd, PORT_CSC);
+
+ retval = isp1760_hcd_clear_and_wait(hcd,
+ PORT_RESUME, 2000);
if (retval != 0) {
dev_err(hcd->self.controller,
"port %d resume error %d\n",
wIndex + 1, retval);
goto error;
}
- temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10));
}
}
/* whoever resets must GetPortStatus to complete it!! */
- if ((temp & PORT_RESET)
- && time_after_eq(jiffies,
- priv->reset_done)) {
+ if (isp1760_hcd_is_set(hcd, PORT_RESET) &&
+ time_after_eq(jiffies, priv->reset_done)) {
status |= USB_PORT_STAT_C_RESET << 16;
priv->reset_done = 0;
/* force reset to complete */
- reg_write32(hcd->regs, HC_PORTSC1, temp & ~PORT_RESET);
/* REVISIT: some hardware needs 550+ usec to clear
* this bit; seems too long to spin routinely...
*/
- retval = handshake(hcd, HC_PORTSC1,
- PORT_RESET, 0, 750);
+ retval = isp1760_hcd_clear_and_wait(hcd, PORT_RESET,
+ 750);
if (retval != 0) {
dev_err(hcd->self.controller, "port %d reset error %d\n",
- wIndex + 1, retval);
+ wIndex + 1, retval);
goto error;
}
/* see what we found out */
- temp = check_reset_complete(hcd, wIndex,
- reg_read32(hcd->regs, HC_PORTSC1));
+ check_reset_complete(hcd, wIndex);
}
/*
* Even if OWNER is set, there's no harm letting hub_wq
@@ -1975,21 +2349,22 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
* for PORT_POWER anyway).
*/
- if (temp & PORT_OWNER)
+ if (isp1760_hcd_is_set(hcd, PORT_OWNER))
dev_err(hcd->self.controller, "PORT_OWNER is set\n");
- if (temp & PORT_CONNECT) {
+ if (isp1760_hcd_is_set(hcd, PORT_CONNECT)) {
status |= USB_PORT_STAT_CONNECTION;
/* status may be from integrated TT */
status |= USB_PORT_STAT_HIGH_SPEED;
}
- if (temp & PORT_PE)
+ if (isp1760_hcd_is_set(hcd, PORT_PE))
status |= USB_PORT_STAT_ENABLE;
- if (temp & (PORT_SUSPEND|PORT_RESUME))
+ if (isp1760_hcd_is_set(hcd, PORT_SUSPEND) &&
+ isp1760_hcd_is_set(hcd, PORT_RESUME))
status |= USB_PORT_STAT_SUSPEND;
- if (temp & PORT_RESET)
+ if (isp1760_hcd_is_set(hcd, PORT_RESET))
status |= USB_PORT_STAT_RESET;
- if (temp & PORT_POWER)
+ if (isp1760_hcd_is_set(hcd, PORT_POWER))
status |= USB_PORT_STAT_POWER;
put_unaligned(cpu_to_le32(status), (__le32 *) buf);
@@ -2009,41 +2384,40 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
if (!wIndex || wIndex > ports)
goto error;
wIndex--;
- temp = reg_read32(hcd->regs, HC_PORTSC1);
- if (temp & PORT_OWNER)
+
+ if (isp1760_hcd_is_set(hcd, PORT_OWNER))
break;
-/* temp &= ~PORT_RWC_BITS; */
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
- reg_write32(hcd->regs, HC_PORTSC1, temp | PORT_PE);
+ isp1760_hcd_set(hcd, PORT_PE);
break;
case USB_PORT_FEAT_SUSPEND:
- if ((temp & PORT_PE) == 0
- || (temp & PORT_RESET) != 0)
+ if (!isp1760_hcd_is_set(hcd, PORT_PE) ||
+ isp1760_hcd_is_set(hcd, PORT_RESET))
goto error;
- reg_write32(hcd->regs, HC_PORTSC1, temp | PORT_SUSPEND);
+ isp1760_hcd_set(hcd, PORT_SUSPEND);
break;
case USB_PORT_FEAT_POWER:
- if (HCS_PPC(priv->hcs_params))
- reg_write32(hcd->regs, HC_PORTSC1,
- temp | PORT_POWER);
+ if (isp1760_hcd_ppc_is_set(hcd))
+ isp1760_hcd_set(hcd, PORT_POWER);
break;
case USB_PORT_FEAT_RESET:
- if (temp & PORT_RESUME)
+ if (isp1760_hcd_is_set(hcd, PORT_RESUME))
goto error;
/* line status bits may report this as low speed,
* which can be fine if this root hub has a
* transaction translator built in.
*/
- if ((temp & (PORT_PE|PORT_CONNECT)) == PORT_CONNECT
- && PORT_USB11(temp)) {
- temp |= PORT_OWNER;
+ if ((isp1760_hcd_is_set(hcd, PORT_CONNECT) &&
+ !isp1760_hcd_is_set(hcd, PORT_PE)) &&
+ (isp1760_hcd_read(hcd, PORT_LSTATUS) == 1)) {
+ isp1760_hcd_set(hcd, PORT_OWNER);
} else {
- temp |= PORT_RESET;
- temp &= ~PORT_PE;
+ isp1760_hcd_set(hcd, PORT_RESET);
+ isp1760_hcd_clear(hcd, PORT_PE);
/*
* caller must wait, then call GetPortStatus
@@ -2052,12 +2426,10 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
priv->reset_done = jiffies +
msecs_to_jiffies(50);
}
- reg_write32(hcd->regs, HC_PORTSC1, temp);
break;
default:
goto error;
}
- reg_read32(hcd->regs, HC_USBCMD);
break;
default:
@@ -2074,14 +2446,13 @@ static int isp1760_get_frame(struct usb_hcd *hcd)
struct isp1760_hcd *priv = hcd_to_priv(hcd);
u32 fr;
- fr = reg_read32(hcd->regs, HC_FRINDEX);
+ fr = isp1760_hcd_read(hcd, HC_FRINDEX);
return (fr >> 3) % priv->periodic_size;
}
static void isp1760_stop(struct usb_hcd *hcd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
- u32 temp;
del_timer(&errata2_timer);
@@ -2092,24 +2463,19 @@ static void isp1760_stop(struct usb_hcd *hcd)
spin_lock_irq(&priv->lock);
ehci_reset(hcd);
/* Disable IRQ */
- temp = reg_read32(hcd->regs, HC_HW_MODE_CTRL);
- reg_write32(hcd->regs, HC_HW_MODE_CTRL, temp &= ~HW_GLOBAL_INTR_EN);
+ isp1760_hcd_clear(hcd, HW_GLOBAL_INTR_EN);
spin_unlock_irq(&priv->lock);
- reg_write32(hcd->regs, HC_CONFIGFLAG, 0);
+ isp1760_hcd_clear(hcd, FLAG_CF);
}
static void isp1760_shutdown(struct usb_hcd *hcd)
{
- u32 command, temp;
-
isp1760_stop(hcd);
- temp = reg_read32(hcd->regs, HC_HW_MODE_CTRL);
- reg_write32(hcd->regs, HC_HW_MODE_CTRL, temp &= ~HW_GLOBAL_INTR_EN);
- command = reg_read32(hcd->regs, HC_USBCMD);
- command &= ~CMD_RUN;
- reg_write32(hcd->regs, HC_USBCMD, command);
+ isp1760_hcd_clear(hcd, HW_GLOBAL_INTR_EN);
+
+ isp1760_hcd_clear(hcd, CMD_RUN);
}
static void isp1760_clear_tt_buffer_complete(struct usb_hcd *hcd,
@@ -2182,10 +2548,11 @@ void isp1760_deinit_kmem_cache(void)
kmem_cache_destroy(urb_listitem_cachep);
}
-int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
- struct resource *mem, int irq, unsigned long irqflags,
+int isp1760_hcd_register(struct isp1760_hcd *priv, struct resource *mem,
+ int irq, unsigned long irqflags,
struct device *dev)
{
+ const struct isp1760_memory_layout *mem_layout = priv->memory_layout;
struct usb_hcd *hcd;
int ret;
@@ -2197,10 +2564,23 @@ int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
priv->hcd = hcd;
+ priv->atl_slots = kcalloc(mem_layout->slot_num,
+ sizeof(struct isp1760_slotinfo), GFP_KERNEL);
+ if (!priv->atl_slots) {
+ ret = -ENOMEM;
+ goto put_hcd;
+ }
+
+ priv->int_slots = kcalloc(mem_layout->slot_num,
+ sizeof(struct isp1760_slotinfo), GFP_KERNEL);
+ if (!priv->int_slots) {
+ ret = -ENOMEM;
+ goto free_atl_slots;
+ }
+
init_memory(priv);
hcd->irq = irq;
- hcd->regs = regs;
hcd->rsrc_start = mem->start;
hcd->rsrc_len = resource_size(mem);
@@ -2209,13 +2589,17 @@ int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
ret = usb_add_hcd(hcd, irq, irqflags);
if (ret)
- goto error;
+ goto free_int_slots;
device_wakeup_enable(hcd->self.controller);
return 0;
-error:
+free_int_slots:
+ kfree(priv->int_slots);
+free_atl_slots:
+ kfree(priv->atl_slots);
+put_hcd:
usb_put_hcd(hcd);
return ret;
}
@@ -2227,4 +2611,6 @@ void isp1760_hcd_unregister(struct isp1760_hcd *priv)
usb_remove_hcd(priv->hcd);
usb_put_hcd(priv->hcd);
+ kfree(priv->atl_slots);
+ kfree(priv->int_slots);
}
diff --git a/drivers/usb/isp1760/isp1760-hcd.h b/drivers/usb/isp1760/isp1760-hcd.h
index f1bb2deb1ccf..ee3063a34de3 100644
--- a/drivers/usb/isp1760/isp1760-hcd.h
+++ b/drivers/usb/isp1760/isp1760-hcd.h
@@ -3,30 +3,15 @@
#define _ISP1760_HCD_H_
#include <linux/spinlock.h>
+#include <linux/regmap.h>
+
+#include "isp1760-regs.h"
struct isp1760_qh;
struct isp1760_qtd;
struct resource;
struct usb_hcd;
-/*
- * 60kb divided in:
- * - 32 blocks @ 256 bytes
- * - 20 blocks @ 1024 bytes
- * - 4 blocks @ 8192 bytes
- */
-
-#define BLOCK_1_NUM 32
-#define BLOCK_2_NUM 20
-#define BLOCK_3_NUM 4
-
-#define BLOCK_1_SIZE 256
-#define BLOCK_2_SIZE 1024
-#define BLOCK_3_SIZE 8192
-#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM)
-#define MAX_PAYLOAD_SIZE BLOCK_3_SIZE
-#define PAYLOAD_AREA_SIZE 0xf000
-
struct isp1760_slotinfo {
struct isp1760_qh *qh;
struct isp1760_qtd *qtd;
@@ -34,6 +19,18 @@ struct isp1760_slotinfo {
};
/* chip memory management */
+#define ISP176x_BLOCK_MAX (32 + 20 + 4)
+#define ISP176x_BLOCK_NUM 3
+
+struct isp1760_memory_layout {
+ unsigned int blocks[ISP176x_BLOCK_NUM];
+ unsigned int blocks_size[ISP176x_BLOCK_NUM];
+
+ unsigned int slot_num;
+ unsigned int payload_blocks;
+ unsigned int payload_area_size;
+};
+
struct isp1760_memory_chunk {
unsigned int start;
unsigned int size;
@@ -48,16 +45,22 @@ enum isp1760_queue_head_types {
};
struct isp1760_hcd {
-#ifdef CONFIG_USB_ISP1760_HCD
struct usb_hcd *hcd;
- u32 hcs_params;
+ void __iomem *base;
+
+ struct regmap *regs;
+ struct regmap_field *fields[HC_FIELD_MAX];
+
+ bool is_isp1763;
+ const struct isp1760_memory_layout *memory_layout;
+
spinlock_t lock;
- struct isp1760_slotinfo atl_slots[32];
+ struct isp1760_slotinfo *atl_slots;
int atl_done_map;
- struct isp1760_slotinfo int_slots[32];
+ struct isp1760_slotinfo *int_slots;
int int_done_map;
- struct isp1760_memory_chunk memory_pool[BLOCKS];
+ struct isp1760_memory_chunk memory_pool[ISP176x_BLOCK_MAX];
struct list_head qh_list[QH_END];
/* periodic schedule support */
@@ -66,20 +69,18 @@ struct isp1760_hcd {
unsigned i_thresh;
unsigned long reset_done;
unsigned long next_statechange;
-#endif
};
#ifdef CONFIG_USB_ISP1760_HCD
-int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
- struct resource *mem, int irq, unsigned long irqflags,
- struct device *dev);
+int isp1760_hcd_register(struct isp1760_hcd *priv, struct resource *mem,
+ int irq, unsigned long irqflags, struct device *dev);
void isp1760_hcd_unregister(struct isp1760_hcd *priv);
int isp1760_init_kmem_once(void);
void isp1760_deinit_kmem_cache(void);
#else
static inline int isp1760_hcd_register(struct isp1760_hcd *priv,
- void __iomem *regs, struct resource *mem,
+ struct resource *mem,
int irq, unsigned long irqflags,
struct device *dev)
{
diff --git a/drivers/usb/isp1760/isp1760-if.c b/drivers/usb/isp1760/isp1760-if.c
index ccd30f835888..7cc349c0b2ad 100644
--- a/drivers/usb/isp1760/isp1760-if.c
+++ b/drivers/usb/isp1760/isp1760-if.c
@@ -7,6 +7,7 @@
* - PDEV (generic platform device centralized driver model)
*
* (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
+ * Copyright 2021 Linaro, Rui Miguel Silva <rui.silva@linaro.org>
*
*/
@@ -16,8 +17,8 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/usb/isp1760.h>
#include <linux/usb/hcd.h>
+#include <linux/usb/otg.h>
#include "isp1760-core.h"
#include "isp1760-regs.h"
@@ -75,9 +76,9 @@ static int isp1761_pci_init(struct pci_dev *dev)
/*by default host is in 16bit mode, so
* io operations at this stage must be 16 bit
* */
- writel(0xface, iobase + HC_SCRATCH_REG);
+ writel(0xface, iobase + ISP176x_HC_SCRATCH);
udelay(100);
- reg_data = readl(iobase + HC_SCRATCH_REG) & 0x0000ffff;
+ reg_data = readl(iobase + ISP176x_HC_SCRATCH) & 0x0000ffff;
retry_count--;
}
@@ -209,13 +210,21 @@ static int isp1760_plat_probe(struct platform_device *pdev)
if (of_device_is_compatible(dp, "nxp,usb-isp1761"))
devflags |= ISP1760_FLAG_ISP1761;
- /* Some systems wire up only 16 of the 32 data lines */
+ if (of_device_is_compatible(dp, "nxp,usb-isp1763"))
+ devflags |= ISP1760_FLAG_ISP1763;
+
+ /*
+ * Some systems wire up only 8 of 16 data lines or
+ * 16 of the 32 data lines
+ */
of_property_read_u32(dp, "bus-width", &bus_width);
if (bus_width == 16)
devflags |= ISP1760_FLAG_BUS_WIDTH_16;
+ else if (bus_width == 8)
+ devflags |= ISP1760_FLAG_BUS_WIDTH_8;
- if (of_property_read_bool(dp, "port1-otg"))
- devflags |= ISP1760_FLAG_OTG_EN;
+ if (usb_get_dr_mode(&pdev->dev) == USB_DR_MODE_PERIPHERAL)
+ devflags |= ISP1760_FLAG_PERIPHERAL_EN;
if (of_property_read_bool(dp, "analog-oc"))
devflags |= ISP1760_FLAG_ANALOG_OC;
@@ -225,22 +234,9 @@ static int isp1760_plat_probe(struct platform_device *pdev)
if (of_property_read_bool(dp, "dreq-polarity"))
devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
- } else if (dev_get_platdata(&pdev->dev)) {
- struct isp1760_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
-
- if (pdata->is_isp1761)
- devflags |= ISP1760_FLAG_ISP1761;
- if (pdata->bus_width_16)
- devflags |= ISP1760_FLAG_BUS_WIDTH_16;
- if (pdata->port1_otg)
- devflags |= ISP1760_FLAG_OTG_EN;
- if (pdata->analog_oc)
- devflags |= ISP1760_FLAG_ANALOG_OC;
- if (pdata->dack_polarity_high)
- devflags |= ISP1760_FLAG_DACK_POL_HIGH;
- if (pdata->dreq_polarity_high)
- devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
+ } else {
+ pr_err("isp1760: no platform data\n");
+ return -ENXIO;
}
ret = isp1760_register(mem_res, irq_res->start, irqflags, &pdev->dev,
@@ -263,6 +259,7 @@ static int isp1760_plat_remove(struct platform_device *pdev)
static const struct of_device_id isp1760_of_match[] = {
{ .compatible = "nxp,usb-isp1760", },
{ .compatible = "nxp,usb-isp1761", },
+ { .compatible = "nxp,usb-isp1763", },
{ },
};
MODULE_DEVICE_TABLE(of, isp1760_of_match);
diff --git a/drivers/usb/isp1760/isp1760-regs.h b/drivers/usb/isp1760/isp1760-regs.h
index fedc4f5cded0..94ea60c20b2a 100644
--- a/drivers/usb/isp1760/isp1760-regs.h
+++ b/drivers/usb/isp1760/isp1760-regs.h
@@ -2,226 +2,291 @@
/*
* Driver for the NXP ISP1760 chip
*
+ * Copyright 2021 Linaro, Rui Miguel Silva
* Copyright 2014 Laurent Pinchart
* Copyright 2007 Sebastian Siewior
*
* Contacts:
* Sebastian Siewior <bigeasy@linutronix.de>
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Rui Miguel Silva <rui.silva@linaro.org>
*/
-#ifndef _ISP1760_REGS_H_
-#define _ISP1760_REGS_H_
+#ifndef _ISP176x_REGS_H_
+#define _ISP176x_REGS_H_
/* -----------------------------------------------------------------------------
* Host Controller
*/
+/* ISP1760/31 */
/* EHCI capability registers */
-#define HC_CAPLENGTH 0x000
-#define HC_LENGTH(p) (((p) >> 00) & 0x00ff) /* bits 7:0 */
-#define HC_VERSION(p) (((p) >> 16) & 0xffff) /* bits 31:16 */
+#define ISP176x_HC_VERSION 0x002
+#define ISP176x_HC_HCSPARAMS 0x004
+#define ISP176x_HC_HCCPARAMS 0x008
-#define HC_HCSPARAMS 0x004
-#define HCS_INDICATOR(p) ((p) & (1 << 16)) /* true: has port indicators */
-#define HCS_PPC(p) ((p) & (1 << 4)) /* true: port power control */
-#define HCS_N_PORTS(p) (((p) >> 0) & 0xf) /* bits 3:0, ports on HC */
+/* EHCI operational registers */
+#define ISP176x_HC_USBCMD 0x020
+#define ISP176x_HC_USBSTS 0x024
+#define ISP176x_HC_FRINDEX 0x02c
+
+#define ISP176x_HC_CONFIGFLAG 0x060
+#define ISP176x_HC_PORTSC1 0x064
+
+#define ISP176x_HC_ISO_PTD_DONEMAP 0x130
+#define ISP176x_HC_ISO_PTD_SKIPMAP 0x134
+#define ISP176x_HC_ISO_PTD_LASTPTD 0x138
+#define ISP176x_HC_INT_PTD_DONEMAP 0x140
+#define ISP176x_HC_INT_PTD_SKIPMAP 0x144
+#define ISP176x_HC_INT_PTD_LASTPTD 0x148
+#define ISP176x_HC_ATL_PTD_DONEMAP 0x150
+#define ISP176x_HC_ATL_PTD_SKIPMAP 0x154
+#define ISP176x_HC_ATL_PTD_LASTPTD 0x158
-#define HC_HCCPARAMS 0x008
-#define HCC_ISOC_CACHE(p) ((p) & (1 << 7)) /* true: can cache isoc frame */
-#define HCC_ISOC_THRES(p) (((p) >> 4) & 0x7) /* bits 6:4, uframes cached */
+/* Configuration Register */
+#define ISP176x_HC_HW_MODE_CTRL 0x300
+#define ISP176x_HC_CHIP_ID 0x304
+#define ISP176x_HC_SCRATCH 0x308
+#define ISP176x_HC_RESET 0x30c
+#define ISP176x_HC_BUFFER_STATUS 0x334
+#define ISP176x_HC_MEMORY 0x33c
+/* Interrupt Register */
+#define ISP176x_HC_INTERRUPT 0x310
+#define ISP176x_HC_INTERRUPT_ENABLE 0x314
+#define ISP176x_HC_ISO_IRQ_MASK_OR 0x318
+#define ISP176x_HC_INT_IRQ_MASK_OR 0x31c
+#define ISP176x_HC_ATL_IRQ_MASK_OR 0x320
+#define ISP176x_HC_ISO_IRQ_MASK_AND 0x324
+#define ISP176x_HC_INT_IRQ_MASK_AND 0x328
+#define ISP176x_HC_ATL_IRQ_MASK_AND 0x32c
+
+#define ISP176x_HC_OTG_CTRL_SET 0x374
+#define ISP176x_HC_OTG_CTRL_CLEAR 0x376
+
+enum isp176x_host_controller_fields {
+ /* HC_PORTSC1 */
+ PORT_OWNER, PORT_POWER, PORT_LSTATUS, PORT_RESET, PORT_SUSPEND,
+ PORT_RESUME, PORT_PE, PORT_CSC, PORT_CONNECT,
+ /* HC_HCSPARAMS */
+ HCS_PPC, HCS_N_PORTS,
+ /* HC_HCCPARAMS */
+ HCC_ISOC_CACHE, HCC_ISOC_THRES,
+ /* HC_USBCMD */
+ CMD_LRESET, CMD_RESET, CMD_RUN,
+ /* HC_USBSTS */
+ STS_PCD,
+ /* HC_FRINDEX */
+ HC_FRINDEX,
+ /* HC_CONFIGFLAG */
+ FLAG_CF,
+ /* ISO/INT/ATL PTD */
+ HC_ISO_PTD_DONEMAP, HC_ISO_PTD_SKIPMAP, HC_ISO_PTD_LASTPTD,
+ HC_INT_PTD_DONEMAP, HC_INT_PTD_SKIPMAP, HC_INT_PTD_LASTPTD,
+ HC_ATL_PTD_DONEMAP, HC_ATL_PTD_SKIPMAP, HC_ATL_PTD_LASTPTD,
+ /* HC_HW_MODE_CTRL */
+ ALL_ATX_RESET, HW_ANA_DIGI_OC, HW_DEV_DMA, HW_COMN_IRQ, HW_COMN_DMA,
+ HW_DATA_BUS_WIDTH, HW_DACK_POL_HIGH, HW_DREQ_POL_HIGH, HW_INTR_HIGH_ACT,
+ HW_INTF_LOCK, HW_INTR_EDGE_TRIG, HW_GLOBAL_INTR_EN,
+ /* HC_CHIP_ID */
+ HC_CHIP_ID_HIGH, HC_CHIP_ID_LOW, HC_CHIP_REV,
+ /* HC_SCRATCH */
+ HC_SCRATCH,
+ /* HC_RESET */
+ SW_RESET_RESET_ATX, SW_RESET_RESET_HC, SW_RESET_RESET_ALL,
+ /* HC_BUFFER_STATUS */
+ ISO_BUF_FILL, INT_BUF_FILL, ATL_BUF_FILL,
+ /* HC_MEMORY */
+ MEM_BANK_SEL, MEM_START_ADDR,
+ /* HC_DATA */
+ HC_DATA,
+ /* HC_INTERRUPT */
+ HC_INTERRUPT,
+ /* HC_INTERRUPT_ENABLE */
+ HC_INT_IRQ_ENABLE, HC_ATL_IRQ_ENABLE,
+ /* INTERRUPT MASKS */
+ HC_ISO_IRQ_MASK_OR, HC_INT_IRQ_MASK_OR, HC_ATL_IRQ_MASK_OR,
+ HC_ISO_IRQ_MASK_AND, HC_INT_IRQ_MASK_AND, HC_ATL_IRQ_MASK_AND,
+ /* HW_OTG_CTRL_SET */
+ HW_OTG_DISABLE, HW_SW_SEL_HC_DC, HW_VBUS_DRV, HW_SEL_CP_EXT,
+ HW_DM_PULLDOWN, HW_DP_PULLDOWN, HW_DP_PULLUP, HW_HC_2_DIS,
+ /* HW_OTG_CTRL_CLR */
+ HW_OTG_DISABLE_CLEAR, HW_SW_SEL_HC_DC_CLEAR, HW_VBUS_DRV_CLEAR,
+ HW_SEL_CP_EXT_CLEAR, HW_DM_PULLDOWN_CLEAR, HW_DP_PULLDOWN_CLEAR,
+ HW_DP_PULLUP_CLEAR, HW_HC_2_DIS_CLEAR,
+ /* Last element */
+ HC_FIELD_MAX,
+};
+
+/* ISP1763 */
/* EHCI operational registers */
-#define HC_USBCMD 0x020
-#define CMD_LRESET (1 << 7) /* partial reset (no ports, etc) */
-#define CMD_RESET (1 << 1) /* reset HC not bus */
-#define CMD_RUN (1 << 0) /* start/stop HC */
-
-#define HC_USBSTS 0x024
-#define STS_PCD (1 << 2) /* port change detect */
-
-#define HC_FRINDEX 0x02c
-
-#define HC_CONFIGFLAG 0x060
-#define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
-
-#define HC_PORTSC1 0x064
-#define PORT_OWNER (1 << 13) /* true: companion hc owns this port */
-#define PORT_POWER (1 << 12) /* true: has power (see PPC) */
-#define PORT_USB11(x) (((x) & (3 << 10)) == (1 << 10)) /* USB 1.1 device */
-#define PORT_RESET (1 << 8) /* reset port */
-#define PORT_SUSPEND (1 << 7) /* suspend port */
-#define PORT_RESUME (1 << 6) /* resume it */
-#define PORT_PE (1 << 2) /* port enable */
-#define PORT_CSC (1 << 1) /* connect status change */
-#define PORT_CONNECT (1 << 0) /* device connected */
-#define PORT_RWC_BITS (PORT_CSC)
-
-#define HC_ISO_PTD_DONEMAP_REG 0x130
-#define HC_ISO_PTD_SKIPMAP_REG 0x134
-#define HC_ISO_PTD_LASTPTD_REG 0x138
-#define HC_INT_PTD_DONEMAP_REG 0x140
-#define HC_INT_PTD_SKIPMAP_REG 0x144
-#define HC_INT_PTD_LASTPTD_REG 0x148
-#define HC_ATL_PTD_DONEMAP_REG 0x150
-#define HC_ATL_PTD_SKIPMAP_REG 0x154
-#define HC_ATL_PTD_LASTPTD_REG 0x158
+#define ISP1763_HC_USBCMD 0x8c
+#define ISP1763_HC_USBSTS 0x90
+#define ISP1763_HC_FRINDEX 0x98
+
+#define ISP1763_HC_CONFIGFLAG 0x9c
+#define ISP1763_HC_PORTSC1 0xa0
+
+#define ISP1763_HC_ISO_PTD_DONEMAP 0xa4
+#define ISP1763_HC_ISO_PTD_SKIPMAP 0xa6
+#define ISP1763_HC_ISO_PTD_LASTPTD 0xa8
+#define ISP1763_HC_INT_PTD_DONEMAP 0xaa
+#define ISP1763_HC_INT_PTD_SKIPMAP 0xac
+#define ISP1763_HC_INT_PTD_LASTPTD 0xae
+#define ISP1763_HC_ATL_PTD_DONEMAP 0xb0
+#define ISP1763_HC_ATL_PTD_SKIPMAP 0xb2
+#define ISP1763_HC_ATL_PTD_LASTPTD 0xb4
/* Configuration Register */
-#define HC_HW_MODE_CTRL 0x300
-#define ALL_ATX_RESET (1 << 31)
-#define HW_ANA_DIGI_OC (1 << 15)
-#define HW_DEV_DMA (1 << 11)
-#define HW_COMN_IRQ (1 << 10)
-#define HW_COMN_DMA (1 << 9)
-#define HW_DATA_BUS_32BIT (1 << 8)
-#define HW_DACK_POL_HIGH (1 << 6)
-#define HW_DREQ_POL_HIGH (1 << 5)
-#define HW_INTR_HIGH_ACT (1 << 2)
-#define HW_INTR_EDGE_TRIG (1 << 1)
-#define HW_GLOBAL_INTR_EN (1 << 0)
-
-#define HC_CHIP_ID_REG 0x304
-#define HC_SCRATCH_REG 0x308
-
-#define HC_RESET_REG 0x30c
-#define SW_RESET_RESET_HC (1 << 1)
-#define SW_RESET_RESET_ALL (1 << 0)
-
-#define HC_BUFFER_STATUS_REG 0x334
-#define ISO_BUF_FILL (1 << 2)
-#define INT_BUF_FILL (1 << 1)
-#define ATL_BUF_FILL (1 << 0)
-
-#define HC_MEMORY_REG 0x33c
-#define ISP_BANK(x) ((x) << 16)
-
-#define HC_PORT1_CTRL 0x374
-#define PORT1_POWER (3 << 3)
-#define PORT1_INIT1 (1 << 7)
-#define PORT1_INIT2 (1 << 23)
-#define HW_OTG_CTRL_SET 0x374
-#define HW_OTG_CTRL_CLR 0x376
-#define HW_OTG_DISABLE (1 << 10)
-#define HW_OTG_SE0_EN (1 << 9)
-#define HW_BDIS_ACON_EN (1 << 8)
-#define HW_SW_SEL_HC_DC (1 << 7)
-#define HW_VBUS_CHRG (1 << 6)
-#define HW_VBUS_DISCHRG (1 << 5)
-#define HW_VBUS_DRV (1 << 4)
-#define HW_SEL_CP_EXT (1 << 3)
-#define HW_DM_PULLDOWN (1 << 2)
-#define HW_DP_PULLDOWN (1 << 1)
-#define HW_DP_PULLUP (1 << 0)
+#define ISP1763_HC_HW_MODE_CTRL 0xb6
+#define ISP1763_HC_CHIP_REV 0x70
+#define ISP1763_HC_CHIP_ID 0x72
+#define ISP1763_HC_SCRATCH 0x78
+#define ISP1763_HC_RESET 0xb8
+#define ISP1763_HC_BUFFER_STATUS 0xba
+#define ISP1763_HC_MEMORY 0xc4
+#define ISP1763_HC_DATA 0xc6
/* Interrupt Register */
-#define HC_INTERRUPT_REG 0x310
-
-#define HC_INTERRUPT_ENABLE 0x314
-#define HC_ISO_INT (1 << 9)
-#define HC_ATL_INT (1 << 8)
-#define HC_INTL_INT (1 << 7)
-#define HC_EOT_INT (1 << 3)
-#define HC_SOT_INT (1 << 1)
-#define INTERRUPT_ENABLE_MASK (HC_INTL_INT | HC_ATL_INT)
-
-#define HC_ISO_IRQ_MASK_OR_REG 0x318
-#define HC_INT_IRQ_MASK_OR_REG 0x31c
-#define HC_ATL_IRQ_MASK_OR_REG 0x320
-#define HC_ISO_IRQ_MASK_AND_REG 0x324
-#define HC_INT_IRQ_MASK_AND_REG 0x328
-#define HC_ATL_IRQ_MASK_AND_REG 0x32c
+#define ISP1763_HC_INTERRUPT 0xd4
+#define ISP1763_HC_INTERRUPT_ENABLE 0xd6
+#define ISP1763_HC_ISO_IRQ_MASK_OR 0xd8
+#define ISP1763_HC_INT_IRQ_MASK_OR 0xda
+#define ISP1763_HC_ATL_IRQ_MASK_OR 0xdc
+#define ISP1763_HC_ISO_IRQ_MASK_AND 0xde
+#define ISP1763_HC_INT_IRQ_MASK_AND 0xe0
+#define ISP1763_HC_ATL_IRQ_MASK_AND 0xe2
+
+#define ISP1763_HC_OTG_CTRL_SET 0xe4
+#define ISP1763_HC_OTG_CTRL_CLEAR 0xe6
/* -----------------------------------------------------------------------------
* Peripheral Controller
*/
-/* Initialization Registers */
-#define DC_ADDRESS 0x0200
-#define DC_DEVEN (1 << 7)
-
-#define DC_MODE 0x020c
-#define DC_DMACLKON (1 << 9)
-#define DC_VBUSSTAT (1 << 8)
-#define DC_CLKAON (1 << 7)
-#define DC_SNDRSU (1 << 6)
-#define DC_GOSUSP (1 << 5)
-#define DC_SFRESET (1 << 4)
-#define DC_GLINTENA (1 << 3)
-#define DC_WKUPCS (1 << 2)
-
-#define DC_INTCONF 0x0210
-#define DC_CDBGMOD_ACK_NAK (0 << 6)
-#define DC_CDBGMOD_ACK (1 << 6)
-#define DC_CDBGMOD_ACK_1NAK (2 << 6)
-#define DC_DDBGMODIN_ACK_NAK (0 << 4)
-#define DC_DDBGMODIN_ACK (1 << 4)
-#define DC_DDBGMODIN_ACK_1NAK (2 << 4)
-#define DC_DDBGMODOUT_ACK_NYET_NAK (0 << 2)
-#define DC_DDBGMODOUT_ACK_NYET (1 << 2)
-#define DC_DDBGMODOUT_ACK_NYET_1NAK (2 << 2)
-#define DC_INTLVL (1 << 1)
-#define DC_INTPOL (1 << 0)
-
-#define DC_DEBUG 0x0212
-#define DC_INTENABLE 0x0214
#define DC_IEPTX(n) (1 << (11 + 2 * (n)))
#define DC_IEPRX(n) (1 << (10 + 2 * (n)))
#define DC_IEPRXTX(n) (3 << (10 + 2 * (n)))
-#define DC_IEP0SETUP (1 << 8)
-#define DC_IEVBUS (1 << 7)
-#define DC_IEDMA (1 << 6)
-#define DC_IEHS_STA (1 << 5)
-#define DC_IERESM (1 << 4)
-#define DC_IESUSP (1 << 3)
-#define DC_IEPSOF (1 << 2)
-#define DC_IESOF (1 << 1)
-#define DC_IEBRST (1 << 0)
+
+#define ISP176x_DC_CDBGMOD_ACK BIT(6)
+#define ISP176x_DC_DDBGMODIN_ACK BIT(4)
+#define ISP176x_DC_DDBGMODOUT_ACK BIT(2)
+
+#define ISP176x_DC_IEP0SETUP BIT(8)
+#define ISP176x_DC_IEVBUS BIT(7)
+#define ISP176x_DC_IEHS_STA BIT(5)
+#define ISP176x_DC_IERESM BIT(4)
+#define ISP176x_DC_IESUSP BIT(3)
+#define ISP176x_DC_IEBRST BIT(0)
+
+#define ISP176x_DC_ENDPTYP_ISOC 0x01
+#define ISP176x_DC_ENDPTYP_BULK 0x02
+#define ISP176x_DC_ENDPTYP_INTERRUPT 0x03
+
+/* Initialization Registers */
+#define ISP176x_DC_ADDRESS 0x0200
+#define ISP176x_DC_MODE 0x020c
+#define ISP176x_DC_INTCONF 0x0210
+#define ISP176x_DC_DEBUG 0x0212
+#define ISP176x_DC_INTENABLE 0x0214
+
+/* Data Flow Registers */
+#define ISP176x_DC_EPMAXPKTSZ 0x0204
+#define ISP176x_DC_EPTYPE 0x0208
+
+#define ISP176x_DC_BUFLEN 0x021c
+#define ISP176x_DC_BUFSTAT 0x021e
+#define ISP176x_DC_DATAPORT 0x0220
+
+#define ISP176x_DC_CTRLFUNC 0x0228
+#define ISP176x_DC_EPINDEX 0x022c
+
+/* DMA Registers */
+#define ISP176x_DC_DMACMD 0x0230
+#define ISP176x_DC_DMATXCOUNT 0x0234
+#define ISP176x_DC_DMACONF 0x0238
+#define ISP176x_DC_DMAHW 0x023c
+#define ISP176x_DC_DMAINTREASON 0x0250
+#define ISP176x_DC_DMAINTEN 0x0254
+#define ISP176x_DC_DMAEP 0x0258
+#define ISP176x_DC_DMABURSTCOUNT 0x0264
+
+/* General Registers */
+#define ISP176x_DC_INTERRUPT 0x0218
+#define ISP176x_DC_CHIPID 0x0270
+#define ISP176x_DC_FRAMENUM 0x0274
+#define ISP176x_DC_SCRATCH 0x0278
+#define ISP176x_DC_UNLOCKDEV 0x027c
+#define ISP176x_DC_INTPULSEWIDTH 0x0280
+#define ISP176x_DC_TESTMODE 0x0284
+
+enum isp176x_device_controller_fields {
+ /* DC_ADDRESS */
+ DC_DEVEN, DC_DEVADDR,
+ /* DC_MODE */
+ DC_VBUSSTAT, DC_SFRESET, DC_GLINTENA,
+ /* DC_INTCONF */
+ DC_CDBGMOD_ACK, DC_DDBGMODIN_ACK, DC_DDBGMODOUT_ACK, DC_INTPOL,
+ /* DC_INTENABLE */
+ DC_IEPRXTX_7, DC_IEPRXTX_6, DC_IEPRXTX_5, DC_IEPRXTX_4, DC_IEPRXTX_3,
+ DC_IEPRXTX_2, DC_IEPRXTX_1, DC_IEPRXTX_0,
+ DC_IEP0SETUP, DC_IEVBUS, DC_IEHS_STA, DC_IERESM, DC_IESUSP, DC_IEBRST,
+ /* DC_EPINDEX */
+ DC_EP0SETUP, DC_ENDPIDX, DC_EPDIR,
+ /* DC_CTRLFUNC */
+ DC_CLBUF, DC_VENDP, DC_DSEN, DC_STATUS, DC_STALL,
+ /* DC_BUFLEN */
+ DC_BUFLEN,
+ /* DC_EPMAXPKTSZ */
+ DC_FFOSZ,
+ /* DC_EPTYPE */
+ DC_EPENABLE, DC_ENDPTYP,
+ /* DC_FRAMENUM */
+ DC_FRAMENUM, DC_UFRAMENUM,
+ /* DC_CHIP_ID */
+ DC_CHIP_ID_HIGH, DC_CHIP_ID_LOW,
+ /* DC_SCRATCH */
+ DC_SCRATCH,
+ /* Last element */
+ DC_FIELD_MAX,
+};
+
+/* ISP1763 */
+/* Initialization Registers */
+#define ISP1763_DC_ADDRESS 0x00
+#define ISP1763_DC_MODE 0x0c
+#define ISP1763_DC_INTCONF 0x10
+#define ISP1763_DC_INTENABLE 0x14
/* Data Flow Registers */
-#define DC_EPINDEX 0x022c
-#define DC_EP0SETUP (1 << 5)
-#define DC_ENDPIDX(n) ((n) << 1)
-#define DC_EPDIR (1 << 0)
-
-#define DC_CTRLFUNC 0x0228
-#define DC_CLBUF (1 << 4)
-#define DC_VENDP (1 << 3)
-#define DC_DSEN (1 << 2)
-#define DC_STATUS (1 << 1)
-#define DC_STALL (1 << 0)
-
-#define DC_DATAPORT 0x0220
-#define DC_BUFLEN 0x021c
-#define DC_DATACOUNT_MASK 0xffff
-#define DC_BUFSTAT 0x021e
-#define DC_EPMAXPKTSZ 0x0204
-
-#define DC_EPTYPE 0x0208
-#define DC_NOEMPKT (1 << 4)
-#define DC_EPENABLE (1 << 3)
-#define DC_DBLBUF (1 << 2)
-#define DC_ENDPTYP_ISOC (1 << 0)
-#define DC_ENDPTYP_BULK (2 << 0)
-#define DC_ENDPTYP_INTERRUPT (3 << 0)
+#define ISP1763_DC_EPMAXPKTSZ 0x04
+#define ISP1763_DC_EPTYPE 0x08
+
+#define ISP1763_DC_BUFLEN 0x1c
+#define ISP1763_DC_BUFSTAT 0x1e
+#define ISP1763_DC_DATAPORT 0x20
+
+#define ISP1763_DC_CTRLFUNC 0x28
+#define ISP1763_DC_EPINDEX 0x2c
/* DMA Registers */
-#define DC_DMACMD 0x0230
-#define DC_DMATXCOUNT 0x0234
-#define DC_DMACONF 0x0238
-#define DC_DMAHW 0x023c
-#define DC_DMAINTREASON 0x0250
-#define DC_DMAINTEN 0x0254
-#define DC_DMAEP 0x0258
-#define DC_DMABURSTCOUNT 0x0264
+#define ISP1763_DC_DMACMD 0x30
+#define ISP1763_DC_DMATXCOUNT 0x34
+#define ISP1763_DC_DMACONF 0x38
+#define ISP1763_DC_DMAHW 0x3c
+#define ISP1763_DC_DMAINTREASON 0x50
+#define ISP1763_DC_DMAINTEN 0x54
+#define ISP1763_DC_DMAEP 0x58
+#define ISP1763_DC_DMABURSTCOUNT 0x64
/* General Registers */
-#define DC_INTERRUPT 0x0218
-#define DC_CHIPID 0x0270
-#define DC_FRAMENUM 0x0274
-#define DC_SCRATCH 0x0278
-#define DC_UNLOCKDEV 0x027c
-#define DC_INTPULSEWIDTH 0x0280
-#define DC_TESTMODE 0x0284
+#define ISP1763_DC_INTERRUPT 0x18
+#define ISP1763_DC_CHIPID_LOW 0x70
+#define ISP1763_DC_CHIPID_HIGH 0x72
+#define ISP1763_DC_FRAMENUM 0x74
+#define ISP1763_DC_SCRATCH 0x78
+#define ISP1763_DC_UNLOCKDEV 0x7c
+#define ISP1763_DC_INTPULSEWIDTH 0x80
+#define ISP1763_DC_TESTMODE 0x84
#endif
diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c
index 1714b2258b54..a78da59d6417 100644
--- a/drivers/usb/isp1760/isp1760-udc.c
+++ b/drivers/usb/isp1760/isp1760-udc.c
@@ -2,10 +2,12 @@
/*
* Driver for the NXP ISP1761 device controller
*
+ * Copyright 2021 Linaro, Rui Miguel Silva
* Copyright 2014 Ideas on Board Oy
*
* Contacts:
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Rui Miguel Silva <rui.silva@linaro.org>
*/
#include <linux/interrupt.h>
@@ -45,16 +47,62 @@ static inline struct isp1760_request *req_to_udc_req(struct usb_request *req)
return container_of(req, struct isp1760_request, req);
}
-static inline u32 isp1760_udc_read(struct isp1760_udc *udc, u16 reg)
+static u32 isp1760_udc_read(struct isp1760_udc *udc, u16 field)
{
- return isp1760_read32(udc->regs, reg);
+ return isp1760_field_read(udc->fields, field);
}
-static inline void isp1760_udc_write(struct isp1760_udc *udc, u16 reg, u32 val)
+static void isp1760_udc_write(struct isp1760_udc *udc, u16 field, u32 val)
{
- isp1760_write32(udc->regs, reg, val);
+ isp1760_field_write(udc->fields, field, val);
}
+static u32 isp1760_udc_read_raw(struct isp1760_udc *udc, u16 reg)
+{
+ __le32 val;
+
+ regmap_raw_read(udc->regs, reg, &val, 4);
+
+ return le32_to_cpu(val);
+}
+
+static u16 isp1760_udc_read_raw16(struct isp1760_udc *udc, u16 reg)
+{
+ __le16 val;
+
+ regmap_raw_read(udc->regs, reg, &val, 2);
+
+ return le16_to_cpu(val);
+}
+
+static void isp1760_udc_write_raw(struct isp1760_udc *udc, u16 reg, u32 val)
+{
+ __le32 val_le = cpu_to_le32(val);
+
+ regmap_raw_write(udc->regs, reg, &val_le, 4);
+}
+
+static void isp1760_udc_write_raw16(struct isp1760_udc *udc, u16 reg, u16 val)
+{
+ __le16 val_le = cpu_to_le16(val);
+
+ regmap_raw_write(udc->regs, reg, &val_le, 2);
+}
+
+static void isp1760_udc_set(struct isp1760_udc *udc, u32 field)
+{
+ isp1760_udc_write(udc, field, 0xFFFFFFFF);
+}
+
+static void isp1760_udc_clear(struct isp1760_udc *udc, u32 field)
+{
+ isp1760_udc_write(udc, field, 0);
+}
+
+static bool isp1760_udc_is_set(struct isp1760_udc *udc, u32 field)
+{
+ return !!isp1760_udc_read(udc, field);
+}
/* -----------------------------------------------------------------------------
* Endpoint Management
*/
@@ -75,16 +123,21 @@ static struct isp1760_ep *isp1760_udc_find_ep(struct isp1760_udc *udc,
return NULL;
}
-static void __isp1760_udc_select_ep(struct isp1760_ep *ep, int dir)
+static void __isp1760_udc_select_ep(struct isp1760_udc *udc,
+ struct isp1760_ep *ep, int dir)
{
- isp1760_udc_write(ep->udc, DC_EPINDEX,
- DC_ENDPIDX(ep->addr & USB_ENDPOINT_NUMBER_MASK) |
- (dir == USB_DIR_IN ? DC_EPDIR : 0));
+ isp1760_udc_write(udc, DC_ENDPIDX, ep->addr & USB_ENDPOINT_NUMBER_MASK);
+
+ if (dir == USB_DIR_IN)
+ isp1760_udc_set(udc, DC_EPDIR);
+ else
+ isp1760_udc_clear(udc, DC_EPDIR);
}
/**
* isp1760_udc_select_ep - Select an endpoint for register access
* @ep: The endpoint
+ * @udc: Reference to the device controller
*
* The ISP1761 endpoint registers are banked. This function selects the target
* endpoint for banked register access. The selection remains valid until the
@@ -93,9 +146,10 @@ static void __isp1760_udc_select_ep(struct isp1760_ep *ep, int dir)
*
* Called with the UDC spinlock held.
*/
-static void isp1760_udc_select_ep(struct isp1760_ep *ep)
+static void isp1760_udc_select_ep(struct isp1760_udc *udc,
+ struct isp1760_ep *ep)
{
- __isp1760_udc_select_ep(ep, ep->addr & USB_ENDPOINT_DIR_MASK);
+ __isp1760_udc_select_ep(udc, ep, ep->addr & USB_ENDPOINT_DIR_MASK);
}
/* Called with the UDC spinlock held. */
@@ -108,9 +162,13 @@ static void isp1760_udc_ctrl_send_status(struct isp1760_ep *ep, int dir)
* the direction opposite to the data stage data packets, we thus need
* to select the OUT/IN endpoint for IN/OUT transfers.
*/
- isp1760_udc_write(udc, DC_EPINDEX, DC_ENDPIDX(0) |
- (dir == USB_DIR_IN ? 0 : DC_EPDIR));
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_STATUS);
+ if (dir == USB_DIR_IN)
+ isp1760_udc_clear(udc, DC_EPDIR);
+ else
+ isp1760_udc_set(udc, DC_EPDIR);
+
+ isp1760_udc_write(udc, DC_ENDPIDX, 1);
+ isp1760_udc_set(udc, DC_STATUS);
/*
* The hardware will terminate the request automatically and go back to
@@ -157,10 +215,10 @@ static void isp1760_udc_ctrl_send_stall(struct isp1760_ep *ep)
spin_lock_irqsave(&udc->lock, flags);
/* Stall both the IN and OUT endpoints. */
- __isp1760_udc_select_ep(ep, USB_DIR_OUT);
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_STALL);
- __isp1760_udc_select_ep(ep, USB_DIR_IN);
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_STALL);
+ __isp1760_udc_select_ep(udc, ep, USB_DIR_OUT);
+ isp1760_udc_set(udc, DC_STALL);
+ __isp1760_udc_select_ep(udc, ep, USB_DIR_IN);
+ isp1760_udc_set(udc, DC_STALL);
/* A protocol stall completes the control transaction. */
udc->ep0_state = ISP1760_CTRL_SETUP;
@@ -181,8 +239,8 @@ static bool isp1760_udc_receive(struct isp1760_ep *ep,
u32 *buf;
int i;
- isp1760_udc_select_ep(ep);
- len = isp1760_udc_read(udc, DC_BUFLEN) & DC_DATACOUNT_MASK;
+ isp1760_udc_select_ep(udc, ep);
+ len = isp1760_udc_read(udc, DC_BUFLEN);
dev_dbg(udc->isp->dev, "%s: received %u bytes (%u/%u done)\n",
__func__, len, req->req.actual, req->req.length);
@@ -198,7 +256,7 @@ static bool isp1760_udc_receive(struct isp1760_ep *ep,
* datasheet doesn't clearly document how this should be
* handled.
*/
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_CLBUF);
+ isp1760_udc_set(udc, DC_CLBUF);
return false;
}
@@ -209,9 +267,9 @@ static bool isp1760_udc_receive(struct isp1760_ep *ep,
* the next packet might be removed from the FIFO.
*/
for (i = len; i > 2; i -= 4, ++buf)
- *buf = le32_to_cpu(isp1760_udc_read(udc, DC_DATAPORT));
+ *buf = isp1760_udc_read_raw(udc, ISP176x_DC_DATAPORT);
if (i > 0)
- *(u16 *)buf = le16_to_cpu(readw(udc->regs + DC_DATAPORT));
+ *(u16 *)buf = isp1760_udc_read_raw16(udc, ISP176x_DC_DATAPORT);
req->req.actual += len;
@@ -253,7 +311,7 @@ static void isp1760_udc_transmit(struct isp1760_ep *ep,
__func__, req->packet_size, req->req.actual,
req->req.length);
- __isp1760_udc_select_ep(ep, USB_DIR_IN);
+ __isp1760_udc_select_ep(udc, ep, USB_DIR_IN);
if (req->packet_size)
isp1760_udc_write(udc, DC_BUFLEN, req->packet_size);
@@ -265,14 +323,14 @@ static void isp1760_udc_transmit(struct isp1760_ep *ep,
* the FIFO for this kind of conditions, but doesn't seem to work.
*/
for (i = req->packet_size; i > 2; i -= 4, ++buf)
- isp1760_udc_write(udc, DC_DATAPORT, cpu_to_le32(*buf));
+ isp1760_udc_write_raw(udc, ISP176x_DC_DATAPORT, *buf);
if (i > 0)
- writew(cpu_to_le16(*(u16 *)buf), udc->regs + DC_DATAPORT);
+ isp1760_udc_write_raw16(udc, ISP176x_DC_DATAPORT, *(u16 *)buf);
if (ep->addr == 0)
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_DSEN);
+ isp1760_udc_set(udc, DC_DSEN);
if (!req->packet_size)
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_VENDP);
+ isp1760_udc_set(udc, DC_VENDP);
}
static void isp1760_ep_rx_ready(struct isp1760_ep *ep)
@@ -408,19 +466,24 @@ static int __isp1760_udc_set_halt(struct isp1760_ep *ep, bool halt)
return -EINVAL;
}
- isp1760_udc_select_ep(ep);
- isp1760_udc_write(udc, DC_CTRLFUNC, halt ? DC_STALL : 0);
+ isp1760_udc_select_ep(udc, ep);
+
+ if (halt)
+ isp1760_udc_set(udc, DC_STALL);
+ else
+ isp1760_udc_clear(udc, DC_STALL);
if (ep->addr == 0) {
/* When halting the control endpoint, stall both IN and OUT. */
- __isp1760_udc_select_ep(ep, USB_DIR_IN);
- isp1760_udc_write(udc, DC_CTRLFUNC, halt ? DC_STALL : 0);
+ __isp1760_udc_select_ep(udc, ep, USB_DIR_IN);
+ if (halt)
+ isp1760_udc_set(udc, DC_STALL);
+ else
+ isp1760_udc_clear(udc, DC_STALL);
} else if (!halt) {
/* Reset the data PID by cycling the endpoint enable bit. */
- u16 eptype = isp1760_udc_read(udc, DC_EPTYPE);
-
- isp1760_udc_write(udc, DC_EPTYPE, eptype & ~DC_EPENABLE);
- isp1760_udc_write(udc, DC_EPTYPE, eptype);
+ isp1760_udc_clear(udc, DC_EPENABLE);
+ isp1760_udc_set(udc, DC_EPENABLE);
/*
* Disabling the endpoint emptied the transmit FIFO, fill it
@@ -479,12 +542,14 @@ static int isp1760_udc_get_status(struct isp1760_udc *udc,
return -EINVAL;
}
- isp1760_udc_write(udc, DC_EPINDEX, DC_ENDPIDX(0) | DC_EPDIR);
+ isp1760_udc_set(udc, DC_EPDIR);
+ isp1760_udc_write(udc, DC_ENDPIDX, 1);
+
isp1760_udc_write(udc, DC_BUFLEN, 2);
- writew(cpu_to_le16(status), udc->regs + DC_DATAPORT);
+ isp1760_udc_write_raw16(udc, ISP176x_DC_DATAPORT, status);
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_DSEN);
+ isp1760_udc_set(udc, DC_DSEN);
dev_dbg(udc->isp->dev, "%s: status 0x%04x\n", __func__, status);
@@ -508,7 +573,8 @@ static int isp1760_udc_set_address(struct isp1760_udc *udc, u16 addr)
usb_gadget_set_state(&udc->gadget, addr ? USB_STATE_ADDRESS :
USB_STATE_DEFAULT);
- isp1760_udc_write(udc, DC_ADDRESS, DC_DEVEN | addr);
+ isp1760_udc_write(udc, DC_DEVADDR, addr);
+ isp1760_udc_set(udc, DC_DEVEN);
spin_lock(&udc->lock);
isp1760_udc_ctrl_send_status(&udc->ep[0], USB_DIR_OUT);
@@ -650,9 +716,9 @@ static void isp1760_ep0_setup(struct isp1760_udc *udc)
spin_lock(&udc->lock);
- isp1760_udc_write(udc, DC_EPINDEX, DC_EP0SETUP);
+ isp1760_udc_set(udc, DC_EP0SETUP);
- count = isp1760_udc_read(udc, DC_BUFLEN) & DC_DATACOUNT_MASK;
+ count = isp1760_udc_read(udc, DC_BUFLEN);
if (count != sizeof(req)) {
spin_unlock(&udc->lock);
@@ -663,8 +729,8 @@ static void isp1760_ep0_setup(struct isp1760_udc *udc)
return;
}
- req.data[0] = isp1760_udc_read(udc, DC_DATAPORT);
- req.data[1] = isp1760_udc_read(udc, DC_DATAPORT);
+ req.data[0] = isp1760_udc_read_raw(udc, ISP176x_DC_DATAPORT);
+ req.data[1] = isp1760_udc_read_raw(udc, ISP176x_DC_DATAPORT);
if (udc->ep0_state != ISP1760_CTRL_SETUP) {
spin_unlock(&udc->lock);
@@ -732,13 +798,13 @@ static int isp1760_ep_enable(struct usb_ep *ep,
switch (usb_endpoint_type(desc)) {
case USB_ENDPOINT_XFER_ISOC:
- type = DC_ENDPTYP_ISOC;
+ type = ISP176x_DC_ENDPTYP_ISOC;
break;
case USB_ENDPOINT_XFER_BULK:
- type = DC_ENDPTYP_BULK;
+ type = ISP176x_DC_ENDPTYP_BULK;
break;
case USB_ENDPOINT_XFER_INT:
- type = DC_ENDPTYP_INTERRUPT;
+ type = ISP176x_DC_ENDPTYP_INTERRUPT;
break;
case USB_ENDPOINT_XFER_CONTROL:
default:
@@ -755,10 +821,13 @@ static int isp1760_ep_enable(struct usb_ep *ep,
uep->halted = false;
uep->wedged = false;
- isp1760_udc_select_ep(uep);
- isp1760_udc_write(udc, DC_EPMAXPKTSZ, uep->maxpacket);
+ isp1760_udc_select_ep(udc, uep);
+
+ isp1760_udc_write(udc, DC_FFOSZ, uep->maxpacket);
isp1760_udc_write(udc, DC_BUFLEN, uep->maxpacket);
- isp1760_udc_write(udc, DC_EPTYPE, DC_EPENABLE | type);
+
+ isp1760_udc_write(udc, DC_ENDPTYP, type);
+ isp1760_udc_set(udc, DC_EPENABLE);
spin_unlock_irqrestore(&udc->lock, flags);
@@ -786,8 +855,9 @@ static int isp1760_ep_disable(struct usb_ep *ep)
uep->desc = NULL;
uep->maxpacket = 0;
- isp1760_udc_select_ep(uep);
- isp1760_udc_write(udc, DC_EPTYPE, 0);
+ isp1760_udc_select_ep(udc, uep);
+ isp1760_udc_clear(udc, DC_EPENABLE);
+ isp1760_udc_clear(udc, DC_ENDPTYP);
/* TODO Synchronize with the IRQ handler */
@@ -864,8 +934,8 @@ static int isp1760_ep_queue(struct usb_ep *ep, struct usb_request *_req,
case ISP1760_CTRL_DATA_OUT:
list_add_tail(&req->queue, &uep->queue);
- __isp1760_udc_select_ep(uep, USB_DIR_OUT);
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_DSEN);
+ __isp1760_udc_select_ep(udc, uep, USB_DIR_OUT);
+ isp1760_udc_set(udc, DC_DSEN);
break;
case ISP1760_CTRL_STATUS:
@@ -1025,14 +1095,14 @@ static void isp1760_ep_fifo_flush(struct usb_ep *ep)
spin_lock_irqsave(&udc->lock, flags);
- isp1760_udc_select_ep(uep);
+ isp1760_udc_select_ep(udc, uep);
/*
* Set the CLBUF bit twice to flush both buffers in case double
* buffering is enabled.
*/
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_CLBUF);
- isp1760_udc_write(udc, DC_CTRLFUNC, DC_CLBUF);
+ isp1760_udc_set(udc, DC_CLBUF);
+ isp1760_udc_set(udc, DC_CLBUF);
spin_unlock_irqrestore(&udc->lock, flags);
}
@@ -1082,6 +1152,10 @@ static void isp1760_udc_disconnect(struct isp1760_udc *udc)
static void isp1760_udc_init_hw(struct isp1760_udc *udc)
{
+ u32 intconf = udc->is_isp1763 ? ISP1763_DC_INTCONF : ISP176x_DC_INTCONF;
+ u32 intena = udc->is_isp1763 ? ISP1763_DC_INTENABLE :
+ ISP176x_DC_INTENABLE;
+
/*
* The device controller currently shares its interrupt with the host
* controller, the DC_IRQ polarity and signaling mode are ignored. Set
@@ -1091,19 +1165,22 @@ static void isp1760_udc_init_hw(struct isp1760_udc *udc)
* ACK tokens only (and NYET for the out pipe). The default
* configuration also generates an interrupt on the first NACK token.
*/
- isp1760_udc_write(udc, DC_INTCONF, DC_CDBGMOD_ACK | DC_DDBGMODIN_ACK |
- DC_DDBGMODOUT_ACK_NYET);
-
- isp1760_udc_write(udc, DC_INTENABLE, DC_IEPRXTX(7) | DC_IEPRXTX(6) |
- DC_IEPRXTX(5) | DC_IEPRXTX(4) | DC_IEPRXTX(3) |
- DC_IEPRXTX(2) | DC_IEPRXTX(1) | DC_IEPRXTX(0) |
- DC_IEP0SETUP | DC_IEVBUS | DC_IERESM | DC_IESUSP |
- DC_IEHS_STA | DC_IEBRST);
+ isp1760_reg_write(udc->regs, intconf,
+ ISP176x_DC_CDBGMOD_ACK | ISP176x_DC_DDBGMODIN_ACK |
+ ISP176x_DC_DDBGMODOUT_ACK);
+
+ isp1760_reg_write(udc->regs, intena, DC_IEPRXTX(7) |
+ DC_IEPRXTX(6) | DC_IEPRXTX(5) | DC_IEPRXTX(4) |
+ DC_IEPRXTX(3) | DC_IEPRXTX(2) | DC_IEPRXTX(1) |
+ DC_IEPRXTX(0) | ISP176x_DC_IEP0SETUP |
+ ISP176x_DC_IEVBUS | ISP176x_DC_IERESM |
+ ISP176x_DC_IESUSP | ISP176x_DC_IEHS_STA |
+ ISP176x_DC_IEBRST);
if (udc->connected)
isp1760_set_pullup(udc->isp, true);
- isp1760_udc_write(udc, DC_ADDRESS, DC_DEVEN);
+ isp1760_udc_set(udc, DC_DEVEN);
}
static void isp1760_udc_reset(struct isp1760_udc *udc)
@@ -1152,7 +1229,7 @@ static int isp1760_udc_get_frame(struct usb_gadget *gadget)
{
struct isp1760_udc *udc = gadget_to_udc(gadget);
- return isp1760_udc_read(udc, DC_FRAMENUM) & ((1 << 11) - 1);
+ return isp1760_udc_read(udc, DC_FRAMENUM);
}
static int isp1760_udc_wakeup(struct usb_gadget *gadget)
@@ -1219,7 +1296,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
usb_gadget_set_state(&udc->gadget, USB_STATE_ATTACHED);
/* DMA isn't supported yet, don't enable the DMA clock. */
- isp1760_udc_write(udc, DC_MODE, DC_GLINTENA);
+ isp1760_udc_set(udc, DC_GLINTENA);
isp1760_udc_init_hw(udc);
@@ -1232,13 +1309,14 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
static int isp1760_udc_stop(struct usb_gadget *gadget)
{
struct isp1760_udc *udc = gadget_to_udc(gadget);
+ u32 mode_reg = udc->is_isp1763 ? ISP1763_DC_MODE : ISP176x_DC_MODE;
unsigned long flags;
dev_dbg(udc->isp->dev, "%s\n", __func__);
del_timer_sync(&udc->vbus_timer);
- isp1760_udc_write(udc, DC_MODE, 0);
+ isp1760_reg_write(udc->regs, mode_reg, 0);
spin_lock_irqsave(&udc->lock, flags);
udc->driver = NULL;
@@ -1260,15 +1338,30 @@ static const struct usb_gadget_ops isp1760_udc_ops = {
* Interrupt Handling
*/
+static u32 isp1760_udc_irq_get_status(struct isp1760_udc *udc)
+{
+ u32 status;
+
+ if (udc->is_isp1763) {
+ status = isp1760_reg_read(udc->regs, ISP1763_DC_INTERRUPT)
+ & isp1760_reg_read(udc->regs, ISP1763_DC_INTENABLE);
+ isp1760_reg_write(udc->regs, ISP1763_DC_INTERRUPT, status);
+ } else {
+ status = isp1760_reg_read(udc->regs, ISP176x_DC_INTERRUPT)
+ & isp1760_reg_read(udc->regs, ISP176x_DC_INTENABLE);
+ isp1760_reg_write(udc->regs, ISP176x_DC_INTERRUPT, status);
+ }
+
+ return status;
+}
+
static irqreturn_t isp1760_udc_irq(int irq, void *dev)
{
struct isp1760_udc *udc = dev;
unsigned int i;
u32 status;
- status = isp1760_udc_read(udc, DC_INTERRUPT)
- & isp1760_udc_read(udc, DC_INTENABLE);
- isp1760_udc_write(udc, DC_INTERRUPT, status);
+ status = isp1760_udc_irq_get_status(udc);
if (status & DC_IEVBUS) {
dev_dbg(udc->isp->dev, "%s(VBUS)\n", __func__);
@@ -1313,7 +1406,7 @@ static irqreturn_t isp1760_udc_irq(int irq, void *dev)
dev_dbg(udc->isp->dev, "%s(SUSP)\n", __func__);
spin_lock(&udc->lock);
- if (!(isp1760_udc_read(udc, DC_MODE) & DC_VBUSSTAT))
+ if (!isp1760_udc_is_set(udc, DC_VBUSSTAT))
isp1760_udc_disconnect(udc);
else
isp1760_udc_suspend(udc);
@@ -1335,7 +1428,7 @@ static void isp1760_udc_vbus_poll(struct timer_list *t)
spin_lock_irqsave(&udc->lock, flags);
- if (!(isp1760_udc_read(udc, DC_MODE) & DC_VBUSSTAT))
+ if (!(isp1760_udc_is_set(udc, DC_VBUSSTAT)))
isp1760_udc_disconnect(udc);
else if (udc->gadget.state >= USB_STATE_POWERED)
mod_timer(&udc->vbus_timer,
@@ -1403,6 +1496,7 @@ static void isp1760_udc_init_eps(struct isp1760_udc *udc)
static int isp1760_udc_init(struct isp1760_udc *udc)
{
+ u32 mode_reg = udc->is_isp1763 ? ISP1763_DC_MODE : ISP176x_DC_MODE;
u16 scratch;
u32 chipid;
@@ -1413,7 +1507,8 @@ static int isp1760_udc_init(struct isp1760_udc *udc)
* and scratch register contents must match the expected values.
*/
isp1760_udc_write(udc, DC_SCRATCH, 0xbabe);
- chipid = isp1760_udc_read(udc, DC_CHIPID);
+ chipid = isp1760_udc_read(udc, DC_CHIP_ID_HIGH) << 16;
+ chipid |= isp1760_udc_read(udc, DC_CHIP_ID_LOW);
scratch = isp1760_udc_read(udc, DC_SCRATCH);
if (scratch != 0xbabe) {
@@ -1423,15 +1518,16 @@ static int isp1760_udc_init(struct isp1760_udc *udc)
return -ENODEV;
}
- if (chipid != 0x00011582 && chipid != 0x00158210) {
+ if (chipid != 0x00011582 && chipid != 0x00158210 &&
+ chipid != 0x00176320) {
dev_err(udc->isp->dev, "udc: invalid chip ID 0x%08x\n", chipid);
return -ENODEV;
}
/* Reset the device controller. */
- isp1760_udc_write(udc, DC_MODE, DC_SFRESET);
+ isp1760_udc_set(udc, DC_SFRESET);
usleep_range(10000, 11000);
- isp1760_udc_write(udc, DC_MODE, 0);
+ isp1760_reg_write(udc->regs, mode_reg, 0);
usleep_range(10000, 11000);
return 0;
@@ -1445,7 +1541,6 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq,
udc->irq = -1;
udc->isp = isp;
- udc->regs = isp->regs;
spin_lock_init(&udc->lock);
timer_setup(&udc->vbus_timer, isp1760_udc_vbus_poll, 0);
diff --git a/drivers/usb/isp1760/isp1760-udc.h b/drivers/usb/isp1760/isp1760-udc.h
index d2df650d54e9..22044e86bc0e 100644
--- a/drivers/usb/isp1760/isp1760-udc.h
+++ b/drivers/usb/isp1760/isp1760-udc.h
@@ -2,10 +2,12 @@
/*
* Driver for the NXP ISP1761 device controller
*
+ * Copyright 2021 Linaro, Rui Miguel Silva
* Copyright 2014 Ideas on Board Oy
*
* Contacts:
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Rui Miguel Silva <rui.silva@linaro.org>
*/
#ifndef _ISP1760_UDC_H_
@@ -17,6 +19,8 @@
#include <linux/timer.h>
#include <linux/usb/gadget.h>
+#include "isp1760-regs.h"
+
struct isp1760_device;
struct isp1760_udc;
@@ -48,7 +52,7 @@ struct isp1760_ep {
* struct isp1760_udc - UDC state information
* irq: IRQ number
* irqname: IRQ name (as passed to request_irq)
- * regs: Base address of the UDC registers
+ * regs: regmap for UDC registers
* driver: Gadget driver
* gadget: Gadget device
* lock: Protects driver, vbus_timer, ep, ep0_*, DC_EPINDEX register
@@ -59,12 +63,13 @@ struct isp1760_ep {
* connected: Tracks gadget driver bus connection state
*/
struct isp1760_udc {
-#ifdef CONFIG_USB_ISP1761_UDC
struct isp1760_device *isp;
int irq;
char *irqname;
- void __iomem *regs;
+
+ struct regmap *regs;
+ struct regmap_field *fields[DC_FIELD_MAX];
struct usb_gadget_driver *driver;
struct usb_gadget gadget;
@@ -79,9 +84,9 @@ struct isp1760_udc {
u16 ep0_length;
bool connected;
+ bool is_isp1763;
unsigned int devstatus;
-#endif
};
#ifdef CONFIG_USB_ISP1761_UDC
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-07 05:48:28 +0000