diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/axonram.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/cpm_common.c | 158 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_lbc.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 13 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/Kconfig | 27 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/Makefile | 10 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/gpio.c | 317 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe.c | 706 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe_ic.c | 502 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe_ic.h | 103 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe_io.c | 192 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/ucc.c | 212 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/ucc_fast.c | 363 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/ucc_slow.c | 374 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/usb.c | 56 |
16 files changed, 15 insertions, 3022 deletions
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 5b492a6438ff..bd6bd729969c 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -26,7 +26,6 @@ obj-$(CONFIG_FSL_85XX_CACHE_SRAM) += fsl_85xx_l2ctlr.o fsl_85xx_cache_sram.o obj-$(CONFIG_SIMPLE_GPIO) += simple_gpio.o obj-$(CONFIG_FSL_RIO) += fsl_rio.o fsl_rmu.o obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o -obj-$(CONFIG_QUICC_ENGINE) += qe_lib/ mv64x60-$(CONFIG_PCI) += mv64x60_pci.o obj-$(CONFIG_MV64X60) += $(mv64x60-y) mv64x60_pic.o mv64x60_dev.o \ mv64x60_udbg.o diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c index 7a399b4d60a0..c713b349d967 100644 --- a/arch/powerpc/sysdev/axonram.c +++ b/arch/powerpc/sysdev/axonram.c @@ -313,6 +313,7 @@ static const struct of_device_id axon_ram_device_id[] = { }, {} }; +MODULE_DEVICE_TABLE(of, axon_ram_device_id); static struct platform_driver axon_ram_driver = { .probe = axon_ram_probe, diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c index e00a5ee58fd7..9d32465eddb1 100644 --- a/arch/powerpc/sysdev/cpm_common.c +++ b/arch/powerpc/sysdev/cpm_common.c @@ -27,8 +27,8 @@ #include <asm/udbg.h> #include <asm/io.h> -#include <asm/rheap.h> #include <asm/cpm.h> +#include <soc/fsl/qe/qe.h> #include <mm/mmu_decl.h> @@ -65,162 +65,6 @@ void __init udbg_init_cpm(void) } #endif -static spinlock_t cpm_muram_lock; -static rh_block_t cpm_boot_muram_rh_block[16]; -static rh_info_t cpm_muram_info; -static u8 __iomem *muram_vbase; -static phys_addr_t muram_pbase; - -/* Max address size we deal with */ -#define OF_MAX_ADDR_CELLS 4 - -int cpm_muram_init(void) -{ - struct device_node *np; - struct resource r; - u32 zero[OF_MAX_ADDR_CELLS] = {}; - resource_size_t max = 0; - int i = 0; - int ret = 0; - - if (muram_pbase) - return 0; - - spin_lock_init(&cpm_muram_lock); - /* initialize the info header */ - rh_init(&cpm_muram_info, 1, - sizeof(cpm_boot_muram_rh_block) / - sizeof(cpm_boot_muram_rh_block[0]), - cpm_boot_muram_rh_block); - - np = of_find_compatible_node(NULL, NULL, "fsl,cpm-muram-data"); - if (!np) { - /* try legacy bindings */ - np = of_find_node_by_name(NULL, "data-only"); - if (!np) { - printk(KERN_ERR "Cannot find CPM muram data node"); - ret = -ENODEV; - goto out; - } - } - - muram_pbase = of_translate_address(np, zero); - if (muram_pbase == (phys_addr_t)OF_BAD_ADDR) { - printk(KERN_ERR "Cannot translate zero through CPM muram node"); - ret = -ENODEV; - goto out; - } - - while (of_address_to_resource(np, i++, &r) == 0) { - if (r.end > max) - max = r.end; - - rh_attach_region(&cpm_muram_info, r.start - muram_pbase, - resource_size(&r)); - } - - muram_vbase = ioremap(muram_pbase, max - muram_pbase + 1); - if (!muram_vbase) { - printk(KERN_ERR "Cannot map CPM muram"); - ret = -ENOMEM; - } - -out: - of_node_put(np); - return ret; -} - -/** - * cpm_muram_alloc - allocate the requested size worth of multi-user ram - * @size: number of bytes to allocate - * @align: requested alignment, in bytes - * - * This function returns an offset into the muram area. - * Use cpm_dpram_addr() to get the virtual address of the area. - * Use cpm_muram_free() to free the allocation. - */ -unsigned long cpm_muram_alloc(unsigned long size, unsigned long align) -{ - unsigned long start; - unsigned long flags; - - spin_lock_irqsave(&cpm_muram_lock, flags); - cpm_muram_info.alignment = align; - start = rh_alloc(&cpm_muram_info, size, "commproc"); - if (!IS_ERR_VALUE(start)) - memset_io(cpm_muram_addr(start), 0, size); - spin_unlock_irqrestore(&cpm_muram_lock, flags); - - return start; -} -EXPORT_SYMBOL(cpm_muram_alloc); - -/** - * cpm_muram_free - free a chunk of multi-user ram - * @offset: The beginning of the chunk as returned by cpm_muram_alloc(). - */ -int cpm_muram_free(unsigned long offset) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&cpm_muram_lock, flags); - ret = rh_free(&cpm_muram_info, offset); - spin_unlock_irqrestore(&cpm_muram_lock, flags); - - return ret; -} -EXPORT_SYMBOL(cpm_muram_free); - -/** - * cpm_muram_alloc_fixed - reserve a specific region of multi-user ram - * @offset: the offset into the muram area to reserve - * @size: the number of bytes to reserve - * - * This function returns "start" on success, -ENOMEM on failure. - * Use cpm_dpram_addr() to get the virtual address of the area. - * Use cpm_muram_free() to free the allocation. - */ -unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size) -{ - unsigned long start; - unsigned long flags; - - spin_lock_irqsave(&cpm_muram_lock, flags); - cpm_muram_info.alignment = 1; - start = rh_alloc_fixed(&cpm_muram_info, offset, size, "commproc"); - spin_unlock_irqrestore(&cpm_muram_lock, flags); - - return start; -} -EXPORT_SYMBOL(cpm_muram_alloc_fixed); - -/** - * cpm_muram_addr - turn a muram offset into a virtual address - * @offset: muram offset to convert - */ -void __iomem *cpm_muram_addr(unsigned long offset) -{ - return muram_vbase + offset; -} -EXPORT_SYMBOL(cpm_muram_addr); - -unsigned long cpm_muram_offset(void __iomem *addr) -{ - return addr - (void __iomem *)muram_vbase; -} -EXPORT_SYMBOL(cpm_muram_offset); - -/** - * cpm_muram_dma - turn a muram virtual address into a DMA address - * @offset: virtual address from cpm_muram_addr() to convert - */ -dma_addr_t cpm_muram_dma(void __iomem *addr) -{ - return muram_pbase + ((u8 __iomem *)addr - muram_vbase); -} -EXPORT_SYMBOL(cpm_muram_dma); - #if defined(CONFIG_CPM2) || defined(CONFIG_8xx_GPIO) struct cpm2_ioports { diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c index 38138cf8d33e..47f781059eeb 100644 --- a/arch/powerpc/sysdev/fsl_lbc.c +++ b/arch/powerpc/sysdev/fsl_lbc.c @@ -243,8 +243,6 @@ static irqreturn_t fsl_lbc_ctrl_irq(int irqno, void *data) if (status & LTESR_CS) dev_err(ctrl->dev, "Chip select error: " "LTESR 0x%08X\n", status); - if (status & LTESR_UPM) - ; if (status & LTESR_FCT) { dev_err(ctrl->dev, "FCM command time-out: " "LTESR 0x%08X\n", status); diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index a1ac80b3041a..c69e88e91459 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -218,6 +218,19 @@ static void setup_pci_atmu(struct pci_controller *hose) */ setup_inbound = !is_kdump(); + if (of_device_is_compatible(hose->dn, "fsl,bsc9132-pcie")) { + /* + * BSC9132 Rev1.0 has an issue where all the PEX inbound + * windows have implemented the default target value as 0xf + * for CCSR space.In all Freescale legacy devices the target + * of 0xf is reserved for local memory space. 9132 Rev1.0 + * now has local mempry space mapped to target 0x0 instead of + * 0xf. Hence adding a workaround to remove the target 0xf + * defined for memory space from Inbound window attributes. + */ + piwar &= ~PIWAR_TGI_LOCAL; + } + if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) { win_idx = 2; diff --git a/arch/powerpc/sysdev/qe_lib/Kconfig b/arch/powerpc/sysdev/qe_lib/Kconfig deleted file mode 100644 index 3c251993bacd..000000000000 --- a/arch/powerpc/sysdev/qe_lib/Kconfig +++ /dev/null @@ -1,27 +0,0 @@ -# -# QE Communication options -# - -config UCC_SLOW - bool - default y if SERIAL_QE - help - This option provides qe_lib support to UCC slow - protocols: UART, BISYNC, QMC - -config UCC_FAST - bool - default y if UCC_GETH - help - This option provides qe_lib support to UCC fast - protocols: HDLC, Ethernet, ATM, transparent - -config UCC - bool - default y if UCC_FAST || UCC_SLOW - -config QE_USB - bool - default y if USB_FSL_QE - help - QE USB Controller support diff --git a/arch/powerpc/sysdev/qe_lib/Makefile b/arch/powerpc/sysdev/qe_lib/Makefile deleted file mode 100644 index f1855c185291..000000000000 --- a/arch/powerpc/sysdev/qe_lib/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for the linux ppc-specific parts of QE -# -obj-$(CONFIG_QUICC_ENGINE)+= qe.o qe_ic.o qe_io.o - -obj-$(CONFIG_UCC) += ucc.o -obj-$(CONFIG_UCC_SLOW) += ucc_slow.o -obj-$(CONFIG_UCC_FAST) += ucc_fast.o -obj-$(CONFIG_QE_USB) += usb.o -obj-$(CONFIG_QE_GPIO) += gpio.o diff --git a/arch/powerpc/sysdev/qe_lib/gpio.c b/arch/powerpc/sysdev/qe_lib/gpio.c deleted file mode 100644 index 521e67a49dc4..000000000000 --- a/arch/powerpc/sysdev/qe_lib/gpio.c +++ /dev/null @@ -1,317 +0,0 @@ -/* - * QUICC Engine GPIOs - * - * Copyright (c) MontaVista Software, Inc. 2008. - * - * Author: Anton Vorontsov <avorontsov@ru.mvista.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_gpio.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/export.h> -#include <asm/qe.h> - -struct qe_gpio_chip { - struct of_mm_gpio_chip mm_gc; - spinlock_t lock; - - unsigned long pin_flags[QE_PIO_PINS]; -#define QE_PIN_REQUESTED 0 - - /* shadowed data register to clear/set bits safely */ - u32 cpdata; - - /* saved_regs used to restore dedicated functions */ - struct qe_pio_regs saved_regs; -}; - -static inline struct qe_gpio_chip * -to_qe_gpio_chip(struct of_mm_gpio_chip *mm_gc) -{ - return container_of(mm_gc, struct qe_gpio_chip, mm_gc); -} - -static void qe_gpio_save_regs(struct of_mm_gpio_chip *mm_gc) -{ - struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc); - struct qe_pio_regs __iomem *regs = mm_gc->regs; - - qe_gc->cpdata = in_be32(®s->cpdata); - qe_gc->saved_regs.cpdata = qe_gc->cpdata; - qe_gc->saved_regs.cpdir1 = in_be32(®s->cpdir1); - qe_gc->saved_regs.cpdir2 = in_be32(®s->cpdir2); - qe_gc->saved_regs.cppar1 = in_be32(®s->cppar1); - qe_gc->saved_regs.cppar2 = in_be32(®s->cppar2); - qe_gc->saved_regs.cpodr = in_be32(®s->cpodr); -} - -static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio) -{ - struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct qe_pio_regs __iomem *regs = mm_gc->regs; - u32 pin_mask = 1 << (QE_PIO_PINS - 1 - gpio); - - return in_be32(®s->cpdata) & pin_mask; -} - -static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) -{ - struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc); - struct qe_pio_regs __iomem *regs = mm_gc->regs; - unsigned long flags; - u32 pin_mask = 1 << (QE_PIO_PINS - 1 - gpio); - - spin_lock_irqsave(&qe_gc->lock, flags); - - if (val) - qe_gc->cpdata |= pin_mask; - else - qe_gc->cpdata &= ~pin_mask; - - out_be32(®s->cpdata, qe_gc->cpdata); - - spin_unlock_irqrestore(&qe_gc->lock, flags); -} - -static int qe_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio) -{ - struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc); - unsigned long flags; - - spin_lock_irqsave(&qe_gc->lock, flags); - - __par_io_config_pin(mm_gc->regs, gpio, QE_PIO_DIR_IN, 0, 0, 0); - - spin_unlock_irqrestore(&qe_gc->lock, flags); - - return 0; -} - -static int qe_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) -{ - struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc); - unsigned long flags; - - qe_gpio_set(gc, gpio, val); - - spin_lock_irqsave(&qe_gc->lock, flags); - - __par_io_config_pin(mm_gc->regs, gpio, QE_PIO_DIR_OUT, 0, 0, 0); - - spin_unlock_irqrestore(&qe_gc->lock, flags); - - return 0; -} - -struct qe_pin { - /* - * The qe_gpio_chip name is unfortunate, we should change that to - * something like qe_pio_controller. Someday. - */ - struct qe_gpio_chip *controller; - int num; -}; - -/** - * qe_pin_request - Request a QE pin - * @np: device node to get a pin from - * @index: index of a pin in the device tree - * Context: non-atomic - * - * This function return qe_pin so that you could use it with the rest of - * the QE Pin Multiplexing API. - */ -struct qe_pin *qe_pin_request(struct device_node *np, int index) -{ - struct qe_pin *qe_pin; - struct gpio_chip *gc; - struct of_mm_gpio_chip *mm_gc; - struct qe_gpio_chip *qe_gc; - int err; - unsigned long flags; - - qe_pin = kzalloc(sizeof(*qe_pin), GFP_KERNEL); - if (!qe_pin) { - pr_debug("%s: can't allocate memory\n", __func__); - return ERR_PTR(-ENOMEM); - } - - err = of_get_gpio(np, index); - if (err < 0) - goto err0; - gc = gpio_to_chip(err); - if (WARN_ON(!gc)) - goto err0; - - if (!of_device_is_compatible(gc->of_node, "fsl,mpc8323-qe-pario-bank")) { - pr_debug("%s: tried to get a non-qe pin\n", __func__); - err = -EINVAL; - goto err0; - } - - mm_gc = to_of_mm_gpio_chip(gc); - qe_gc = to_qe_gpio_chip(mm_gc); - - spin_lock_irqsave(&qe_gc->lock, flags); - - err -= gc->base; - if (test_and_set_bit(QE_PIN_REQUESTED, &qe_gc->pin_flags[err]) == 0) { - qe_pin->controller = qe_gc; - qe_pin->num = err; - err = 0; - } else { - err = -EBUSY; - } - - spin_unlock_irqrestore(&qe_gc->lock, flags); - - if (!err) - return qe_pin; -err0: - kfree(qe_pin); - pr_debug("%s failed with status %d\n", __func__, err); - return ERR_PTR(err); -} -EXPORT_SYMBOL(qe_pin_request); - -/** - * qe_pin_free - Free a pin - * @qe_pin: pointer to the qe_pin structure - * Context: any - * - * This function frees the qe_pin structure and makes a pin available - * for further qe_pin_request() calls. - */ -void qe_pin_free(struct qe_pin *qe_pin) -{ - struct qe_gpio_chip *qe_gc = qe_pin->controller; - unsigned long flags; - const int pin = qe_pin->num; - - spin_lock_irqsave(&qe_gc->lock, flags); - test_and_clear_bit(QE_PIN_REQUESTED, &qe_gc->pin_flags[pin]); - spin_unlock_irqrestore(&qe_gc->lock, flags); - - kfree(qe_pin); -} -EXPORT_SYMBOL(qe_pin_free); - -/** - * qe_pin_set_dedicated - Revert a pin to a dedicated peripheral function mode - * @qe_pin: pointer to the qe_pin structure - * Context: any - * - * This function resets a pin to a dedicated peripheral function that - * has been set up by the firmware. - */ -void qe_pin_set_dedicated(struct qe_pin *qe_pin) -{ - struct qe_gpio_chip *qe_gc = qe_pin->controller; - struct qe_pio_regs __iomem *regs = qe_gc->mm_gc.regs; - struct qe_pio_regs *sregs = &qe_gc->saved_regs; - int pin = qe_pin->num; - u32 mask1 = 1 << (QE_PIO_PINS - (pin + 1)); - u32 mask2 = 0x3 << (QE_PIO_PINS - (pin % (QE_PIO_PINS / 2) + 1) * 2); - bool second_reg = pin > (QE_PIO_PINS / 2) - 1; - unsigned long flags; - - spin_lock_irqsave(&qe_gc->lock, flags); - - if (second_reg) { - clrsetbits_be32(®s->cpdir2, mask2, sregs->cpdir2 & mask2); - clrsetbits_be32(®s->cppar2, mask2, sregs->cppar2 & mask2); - } else { - clrsetbits_be32(®s->cpdir1, mask2, sregs->cpdir1 & mask2); - clrsetbits_be32(®s->cppar1, mask2, sregs->cppar1 & mask2); - } - - if (sregs->cpdata & mask1) - qe_gc->cpdata |= mask1; - else - qe_gc->cpdata &= ~mask1; - - out_be32(®s->cpdata, qe_gc->cpdata); - clrsetbits_be32(®s->cpodr, mask1, sregs->cpodr & mask1); - - spin_unlock_irqrestore(&qe_gc->lock, flags); -} -EXPORT_SYMBOL(qe_pin_set_dedicated); - -/** - * qe_pin_set_gpio - Set a pin to the GPIO mode - * @qe_pin: pointer to the qe_pin structure - * Context: any - * - * This function sets a pin to the GPIO mode. - */ -void qe_pin_set_gpio(struct qe_pin *qe_pin) -{ - struct qe_gpio_chip *qe_gc = qe_pin->controller; - struct qe_pio_regs __iomem *regs = qe_gc->mm_gc.regs; - unsigned long flags; - - spin_lock_irqsave(&qe_gc->lock, flags); - - /* Let's make it input by default, GPIO API is able to change that. */ - __par_io_config_pin(regs, qe_pin->num, QE_PIO_DIR_IN, 0, 0, 0); - - spin_unlock_irqrestore(&qe_gc->lock, flags); -} -EXPORT_SYMBOL(qe_pin_set_gpio); - -static int __init qe_add_gpiochips(void) -{ - struct device_node *np; - - for_each_compatible_node(np, NULL, "fsl,mpc8323-qe-pario-bank") { - int ret; - struct qe_gpio_chip *qe_gc; - struct of_mm_gpio_chip *mm_gc; - struct gpio_chip *gc; - - qe_gc = kzalloc(sizeof(*qe_gc), GFP_KERNEL); - if (!qe_gc) { - ret = -ENOMEM; - goto err; - } - - spin_lock_init(&qe_gc->lock); - - mm_gc = &qe_gc->mm_gc; - gc = &mm_gc->gc; - - mm_gc->save_regs = qe_gpio_save_regs; - gc->ngpio = QE_PIO_PINS; - gc->direction_input = qe_gpio_dir_in; - gc->direction_output = qe_gpio_dir_out; - gc->get = qe_gpio_get; - gc->set = qe_gpio_set; - - ret = of_mm_gpiochip_add(np, mm_gc); - if (ret) - goto err; - continue; -err: - pr_err("%s: registration failed with status %d\n", - np->full_name, ret); - kfree(qe_gc); - /* try others anyway */ - } - return 0; -} -arch_initcall(qe_add_gpiochips); diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c deleted file mode 100644 index c2518cdb7ddb..000000000000 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ /dev/null @@ -1,706 +0,0 @@ -/* - * Copyright (C) 2006-2010 Freescale Semiconductor, Inc. All rights reserved. - * - * Authors: Shlomi Gridish <gridish@freescale.com> - * Li Yang <leoli@freescale.com> - * Based on cpm2_common.c from Dan Malek (dmalek@jlc.net) - * - * Description: - * General Purpose functions for the global management of the - * QUICC Engine (QE). - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/spinlock.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/ioport.h> -#include <linux/crc32.h> -#include <linux/mod_devicetable.h> -#include <linux/of_platform.h> -#include <asm/irq.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/immap_qe.h> -#include <asm/qe.h> -#include <asm/prom.h> -#include <asm/rheap.h> - -static void qe_snums_init(void); -static int qe_sdma_init(void); - -static DEFINE_SPINLOCK(qe_lock); -DEFINE_SPINLOCK(cmxgcr_lock); -EXPORT_SYMBOL(cmxgcr_lock); - -/* QE snum state */ -enum qe_snum_state { - QE_SNUM_STATE_USED, - QE_SNUM_STATE_FREE -}; - -/* QE snum */ -struct qe_snum { - u8 num; - enum qe_snum_state state; -}; - -/* We allocate this here because it is used almost exclusively for - * the communication processor devices. - */ -struct qe_immap __iomem *qe_immr; -EXPORT_SYMBOL(qe_immr); - -static struct qe_snum snums[QE_NUM_OF_SNUM]; /* Dynamically allocated SNUMs */ -static unsigned int qe_num_of_snum; - -static phys_addr_t qebase = -1; - -phys_addr_t get_qe_base(void) -{ - struct device_node *qe; - int size; - const u32 *prop; - - if (qebase != -1) - return qebase; - - qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); - if (!qe) { - qe = of_find_node_by_type(NULL, "qe"); - if (!qe) - return qebase; - } - - prop = of_get_property(qe, "reg", &size); - if (prop && size >= sizeof(*prop)) - qebase = of_translate_address(qe, prop); - of_node_put(qe); - - return qebase; -} - -EXPORT_SYMBOL(get_qe_base); - -void qe_reset(void) -{ - if (qe_immr == NULL) - qe_immr = ioremap(get_qe_base(), QE_IMMAP_SIZE); - - qe_snums_init(); - - qe_issue_cmd(QE_RESET, QE_CR_SUBBLOCK_INVALID, - QE_CR_PROTOCOL_UNSPECIFIED, 0); - - /* Reclaim the MURAM memory for our use. */ - qe_muram_init(); - - if (qe_sdma_init()) - panic("sdma init failed!"); -} - -int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input) -{ - unsigned long flags; - u8 mcn_shift = 0, dev_shift = 0; - u32 ret; - - spin_lock_irqsave(&qe_lock, flags); - if (cmd == QE_RESET) { - out_be32(&qe_immr->cp.cecr, (u32) (cmd | QE_CR_FLG)); - } else { - if (cmd == QE_ASSIGN_PAGE) { - /* Here device is the SNUM, not sub-block */ - dev_shift = QE_CR_SNUM_SHIFT; - } else if (cmd == QE_ASSIGN_RISC) { - /* Here device is the SNUM, and mcnProtocol is - * e_QeCmdRiscAssignment value */ - dev_shift = QE_CR_SNUM_SHIFT; - mcn_shift = QE_CR_MCN_RISC_ASSIGN_SHIFT; - } else { - if (device == QE_CR_SUBBLOCK_USB) - mcn_shift = QE_CR_MCN_USB_SHIFT; - else - mcn_shift = QE_CR_MCN_NORMAL_SHIFT; - } - - out_be32(&qe_immr->cp.cecdr, cmd_input); - out_be32(&qe_immr->cp.cecr, - (cmd | QE_CR_FLG | ((u32) device << dev_shift) | (u32) - mcn_protocol << mcn_shift)); - } - - /* wait for the QE_CR_FLG to clear */ - ret = spin_event_timeout((in_be32(&qe_immr->cp.cecr) & QE_CR_FLG) == 0, - 100, 0); - /* On timeout (e.g. failure), the expression will be false (ret == 0), - otherwise it will be true (ret == 1). */ - spin_unlock_irqrestore(&qe_lock, flags); - - return ret == 1; -} -EXPORT_SYMBOL(qe_issue_cmd); - -/* Set a baud rate generator. This needs lots of work. There are - * 16 BRGs, which can be connected to the QE channels or output - * as clocks. The BRGs are in two different block of internal - * memory mapped space. - * The BRG clock is the QE clock divided by 2. - * It was set up long ago during the initial boot phase and is - * is given to us. - * Baud rate clocks are zero-based in the driver code (as that maps - * to port numbers). Documentation uses 1-based numbering. - */ -static unsigned int brg_clk = 0; - -unsigned int qe_get_brg_clk(void) -{ - struct device_node *qe; - int size; - const u32 *prop; - - if (brg_clk) - return brg_clk; - - qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); - if (!qe) { - qe = of_find_node_by_type(NULL, "qe"); - if (!qe) - return brg_clk; - } - - prop = of_get_property(qe, "brg-frequency", &size); - if (prop && size == sizeof(*prop)) - brg_clk = *prop; - - of_node_put(qe); - - return brg_clk; -} -EXPORT_SYMBOL(qe_get_brg_clk); - -/* Program the BRG to the given sampling rate and multiplier - * - * @brg: the BRG, QE_BRG1 - QE_BRG16 - * @rate: the desired sampling rate - * @multiplier: corresponds to the value programmed in GUMR_L[RDCR] or - * GUMR_L[TDCR]. E.g., if this BRG is the RX clock, and GUMR_L[RDCR]=01, - * then 'multiplier' should be 8. - */ -int qe_setbrg(enum qe_clock brg, unsigned int rate, unsigned int multiplier) -{ - u32 divisor, tempval; - u32 div16 = 0; - - if ((brg < QE_BRG1) || (brg > QE_BRG16)) - return -EINVAL; - - divisor = qe_get_brg_clk() / (rate * multiplier); - - if (divisor > QE_BRGC_DIVISOR_MAX + 1) { - div16 = QE_BRGC_DIV16; - divisor /= 16; - } - - /* Errata QE_General4, which affects some MPC832x and MPC836x SOCs, says - that the BRG divisor must be even if you're not using divide-by-16 - mode. */ - if (!div16 && (divisor & 1) && (divisor > 3)) - divisor++; - - tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | - QE_BRGC_ENABLE | div16; - - out_be32(&qe_immr->brg.brgc[brg - QE_BRG1], tempval); - - return 0; -} -EXPORT_SYMBOL(qe_setbrg); - -/* Convert a string to a QE clock source enum - * - * This function takes a string, typically from a property in the device - * tree, and returns the corresponding "enum qe_clock" value. -*/ -enum qe_clock qe_clock_source(const char *source) -{ - unsigned int i; - - if (strcasecmp(source, "none") == 0) - return QE_CLK_NONE; - - if (strncasecmp(source, "brg", 3) == 0) { - i = simple_strtoul(source + 3, NULL, 10); - if ((i >= 1) && (i <= 16)) - return (QE_BRG1 - 1) + i; - else - return QE_CLK_DUMMY; - } - - if (strncasecmp(source, "clk", 3) == 0) { - i = simple_strtoul(source + 3, NULL, 10); - if ((i >= 1) && (i <= 24)) - return (QE_CLK1 - 1) + i; - else - return QE_CLK_DUMMY; - } - - return QE_CLK_DUMMY; -} -EXPORT_SYMBOL(qe_clock_source); - -/* Initialize SNUMs (thread serial numbers) according to - * QE Module Control chapter, SNUM table - */ -static void qe_snums_init(void) -{ - int i; - static const u8 snum_init_76[] = { - 0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D, - 0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89, - 0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9, - 0xD8, 0xD9, 0xE8, 0xE9, 0x44, 0x45, 0x4C, 0x4D, - 0x54, 0x55, 0x5C, 0x5D, 0x64, 0x65, 0x6C, 0x6D, - 0x74, 0x75, 0x7C, 0x7D, 0x84, 0x85, 0x8C, 0x8D, - 0x94, 0x95, 0x9C, 0x9D, 0xA4, 0xA5, 0xAC, 0xAD, - 0xB4, 0xB5, 0xBC, 0xBD, 0xC4, 0xC5, 0xCC, 0xCD, - 0xD4, 0xD5, 0xDC, 0xDD, 0xE4, 0xE5, 0xEC, 0xED, - 0xF4, 0xF5, 0xFC, 0xFD, - }; - static const u8 snum_init_46[] = { - 0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D, - 0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89, - 0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9, - 0xD8, 0xD9, 0xE8, 0xE9, 0x08, 0x09, 0x18, 0x19, - 0x28, 0x29, 0x38, 0x39, 0x48, 0x49, 0x58, 0x59, - 0x68, 0x69, 0x78, 0x79, 0x80, 0x81, - }; - static const u8 *snum_init; - - qe_num_of_snum = qe_get_num_of_snums(); - - if (qe_num_of_snum == 76) - snum_init = snum_init_76; - else - snum_init = snum_init_46; - - for (i = 0; i < qe_num_of_snum; i++) { - snums[i].num = snum_init[i]; - snums[i].state = QE_SNUM_STATE_FREE; - } -} - -int qe_get_snum(void) -{ - unsigned long flags; - int snum = -EBUSY; - int i; - - spin_lock_irqsave(&qe_lock, flags); - for (i = 0; i < qe_num_of_snum; i++) { - if (snums[i].state == QE_SNUM_STATE_FREE) { - snums[i].state = QE_SNUM_STATE_USED; - snum = snums[i].num; - break; - } - } - spin_unlock_irqrestore(&qe_lock, flags); - - return snum; -} -EXPORT_SYMBOL(qe_get_snum); - -void qe_put_snum(u8 snum) -{ - int i; - - for (i = 0; i < qe_num_of_snum; i++) { - if (snums[i].num == snum) { - snums[i].state = QE_SNUM_STATE_FREE; - break; - } - } -} -EXPORT_SYMBOL(qe_put_snum); - -static int qe_sdma_init(void) -{ - struct sdma __iomem *sdma = &qe_immr->sdma; - static unsigned long sdma_buf_offset = (unsigned long)-ENOMEM; - - if (!sdma) - return -ENODEV; - - /* allocate 2 internal temporary buffers (512 bytes size each) for - * the SDMA */ - if (IS_ERR_VALUE(sdma_buf_offset)) { - sdma_buf_offset = qe_muram_alloc(512 * 2, 4096); - if (IS_ERR_VALUE(sdma_buf_offset)) - return -ENOMEM; - } - - out_be32(&sdma->sdebcr, (u32) sdma_buf_offset & QE_SDEBCR_BA_MASK); - out_be32(&sdma->sdmr, (QE_SDMR_GLB_1_MSK | - (0x1 << QE_SDMR_CEN_SHIFT))); - - return 0; -} - -/* The maximum number of RISCs we support */ -#define MAX_QE_RISC 4 - -/* Firmware information stored here for qe_get_firmware_info() */ -static struct qe_firmware_info qe_firmware_info; - -/* - * Set to 1 if QE firmware has been uploaded, and therefore - * qe_firmware_info contains valid data. - */ -static int qe_firmware_uploaded; - -/* - * Upload a QE microcode - * - * This function is a worker function for qe_upload_firmware(). It does - * the actual uploading of the microcode. - */ -static void qe_upload_microcode(const void *base, - const struct qe_microcode *ucode) -{ - const __be32 *code = base + be32_to_cpu(ucode->code_offset); - unsigned int i; - - if (ucode->major || ucode->minor || ucode->revision) - printk(KERN_INFO "qe-firmware: " - "uploading microcode '%s' version %u.%u.%u\n", - ucode->id, ucode->major, ucode->minor, ucode->revision); - else - printk(KERN_INFO "qe-firmware: " - "uploading microcode '%s'\n", ucode->id); - - /* Use auto-increment */ - out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) | - QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR); - - for (i = 0; i < be32_to_cpu(ucode->count); i++) - out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i])); - - /* Set I-RAM Ready Register */ - out_be32(&qe_immr->iram.iready, be32_to_cpu(QE_IRAM_READY)); -} - -/* - * Upload a microcode to the I-RAM at a specific address. - * - * See Documentation/powerpc/qe_firmware.txt for information on QE microcode - * uploading. - * - * Currently, only version 1 is supported, so the 'version' field must be - * set to 1. - * - * The SOC model and revision are not validated, they are only displayed for - * informational purposes. - * - * 'calc_size' is the calculated size, in bytes, of the firmware structure and - * all of the microcode structures, minus the CRC. - * - * 'length' is the size that the structure says it is, including the CRC. - */ -int qe_upload_firmware(const struct qe_firmware *firmware) -{ - unsigned int i; - unsigned int j; - u32 crc; - size_t calc_size = sizeof(struct qe_firmware); - size_t length; - const struct qe_header *hdr; - - if (!firmware) { - printk(KERN_ERR "qe-firmware: invalid pointer\n"); - return -EINVAL; - } - - hdr = &firmware->header; - length = be32_to_cpu(hdr->length); - - /* Check the magic */ - if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') || - (hdr->magic[2] != 'F')) { - printk(KERN_ERR "qe-firmware: not a microcode\n"); - return -EPERM; - } - - /* Check the version */ - if (hdr->version != 1) { - printk(KERN_ERR "qe-firmware: unsupported version\n"); - return -EPERM; - } - - /* Validate some of the fields */ - if ((firmware->count < 1) || (firmware->count > MAX_QE_RISC)) { - printk(KERN_ERR "qe-firmware: invalid data\n"); - return -EINVAL; - } - - /* Validate the length and check if there's a CRC */ - calc_size += (firmware->count - 1) * sizeof(struct qe_microcode); - - for (i = 0; i < firmware->count; i++) - /* - * For situations where the second RISC uses the same microcode - * as the first, the 'code_offset' and 'count' fields will be - * zero, so it's okay to add those. - */ - calc_size += sizeof(__be32) * - be32_to_cpu(firmware->microcode[i].count); - - /* Validate the length */ - if (length != calc_size + sizeof(__be32)) { - printk(KERN_ERR "qe-firmware: invalid length\n"); - return -EPERM; - } - - /* Validate the CRC */ - crc = be32_to_cpu(*(__be32 *)((void *)firmware + calc_size)); - if (crc != crc32(0, firmware, calc_size)) { - printk(KERN_ERR "qe-firmware: firmware CRC is invalid\n"); - return -EIO; - } - - /* - * If the microcode calls for it, split the I-RAM. - */ - if (!firmware->split) - setbits16(&qe_immr->cp.cercr, QE_CP_CERCR_CIR); - - if (firmware->soc.model) - printk(KERN_INFO - "qe-firmware: firmware '%s' for %u V%u.%u\n", - firmware->id, be16_to_cpu(firmware->soc.model), - firmware->soc.major, firmware->soc.minor); - else - printk(KERN_INFO "qe-firmware: firmware '%s'\n", - firmware->id); - - /* - * The QE only supports one microcode per RISC, so clear out all the - * saved microcode information and put in the new. - */ - memset(&qe_firmware_info, 0, sizeof(qe_firmware_info)); - strlcpy(qe_firmware_info.id, firmware->id, sizeof(qe_firmware_info.id)); - qe_firmware_info.extended_modes = firmware->extended_modes; - memcpy(qe_firmware_info.vtraps, firmware->vtraps, - sizeof(firmware->vtraps)); - - /* Loop through each microcode. */ - for (i = 0; i < firmware->count; i++) { - const struct qe_microcode *ucode = &firmware->microcode[i]; - - /* Upload a microcode if it's present */ - if (ucode->code_offset) - qe_upload_microcode(firmware, ucode); - - /* Program the traps for this processor */ - for (j = 0; j < 16; j++) { - u32 trap = be32_to_cpu(ucode->traps[j]); - - if (trap) - out_be32(&qe_immr->rsp[i].tibcr[j], trap); - } - - /* Enable traps */ - out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr)); - } - - qe_firmware_uploaded = 1; - - return 0; -} -EXPORT_SYMBOL(qe_upload_firmware); - -/* - * Get info on the currently-loaded firmware - * - * This function also checks the device tree to see if the boot loader has - * uploaded a firmware already. - */ -struct qe_firmware_info *qe_get_firmware_info(void) -{ - static int initialized; - struct property *prop; - struct device_node *qe; - struct device_node *fw = NULL; - const char *sprop; - unsigned int i; - - /* - * If we haven't checked yet, and a driver hasn't uploaded a firmware - * yet, then check the device tree for information. - */ - if (qe_firmware_uploaded) - return &qe_firmware_info; - - if (initialized) - return NULL; - - initialized = 1; - - /* - * Newer device trees have an "fsl,qe" compatible property for the QE - * node, but we still need to support older device trees. - */ - qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); - if (!qe) { - qe = of_find_node_by_type(NULL, "qe"); - if (!qe) - return NULL; - } - - /* Find the 'firmware' child node */ - for_each_child_of_node(qe, fw) { - if (strcmp(fw->name, "firmware") == 0) - break; - } - - of_node_put(qe); - - /* Did we find the 'firmware' node? */ - if (!fw) - return NULL; - - qe_firmware_uploaded = 1; - - /* Copy the data into qe_firmware_info*/ - sprop = of_get_property(fw, "id", NULL); - if (sprop) - strlcpy(qe_firmware_info.id, sprop, - sizeof(qe_firmware_info.id)); - - prop = of_find_property(fw, "extended-modes", NULL); - if (prop && (prop->length == sizeof(u64))) { - const u64 *iprop = prop->value; - - qe_firmware_info.extended_modes = *iprop; - } - - prop = of_find_property(fw, "virtual-traps", NULL); - if (prop && (prop->length == 32)) { - const u32 *iprop = prop->value; - - for (i = 0; i < ARRAY_SIZE(qe_firmware_info.vtraps); i++) - qe_firmware_info.vtraps[i] = iprop[i]; - } - - of_node_put(fw); - - return &qe_firmware_info; -} -EXPORT_SYMBOL(qe_get_firmware_info); - -unsigned int qe_get_num_of_risc(void) -{ - struct device_node *qe; - int size; - unsigned int num_of_risc = 0; - const u32 *prop; - - qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); - if (!qe) { - /* Older devices trees did not have an "fsl,qe" - * compatible property, so we need to look for - * the QE node by name. - */ - qe = of_find_node_by_type(NULL, "qe"); - if (!qe) - return num_of_risc; - } - - prop = of_get_property(qe, "fsl,qe-num-riscs", &size); - if (prop && size == sizeof(*prop)) - num_of_risc = *prop; - - of_node_put(qe); - - return num_of_risc; -} -EXPORT_SYMBOL(qe_get_num_of_risc); - -unsigned int qe_get_num_of_snums(void) -{ - struct device_node *qe; - int size; - unsigned int num_of_snums; - const u32 *prop; - - num_of_snums = 28; /* The default number of snum for threads is 28 */ - qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); - if (!qe) { - /* Older devices trees did not have an "fsl,qe" - * compatible property, so we need to look for - * the QE node by name. - */ - qe = of_find_node_by_type(NULL, "qe"); - if (!qe) - return num_of_snums; - } - - prop = of_get_property(qe, "fsl,qe-num-snums", &size); - if (prop && size == sizeof(*prop)) { - num_of_snums = *prop; - if ((num_of_snums < 28) || (num_of_snums > QE_NUM_OF_SNUM)) { - /* No QE ever has fewer than 28 SNUMs */ - pr_err("QE: number of snum is invalid\n"); - of_node_put(qe); - return -EINVAL; - } - } - - of_node_put(qe); - - return num_of_snums; -} -EXPORT_SYMBOL(qe_get_num_of_snums); - -#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx) -static int qe_resume(struct platform_device *ofdev) -{ - if (!qe_alive_during_sleep()) - qe_reset(); - return 0; -} - -static int qe_probe(struct platform_device *ofdev) -{ - return 0; -} - -static const struct of_device_id qe_ids[] = { - { .compatible = "fsl,qe", }, - { }, -}; - -static struct platform_driver qe_driver = { - .driver = { - .name = "fsl-qe", - .of_match_table = qe_ids, - }, - .probe = qe_probe, - .resume = qe_resume, -}; - -static int __init qe_drv_init(void) -{ - return platform_driver_register(&qe_driver); -} -device_initcall(qe_drv_init); -#endif /* defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx) */ diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c deleted file mode 100644 index ef36f16f9f6f..000000000000 --- a/arch/powerpc/sysdev/qe_lib/qe_ic.c +++ /dev/null @@ -1,502 +0,0 @@ -/* - * arch/powerpc/sysdev/qe_lib/qe_ic.c - * - * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved. - * - * Author: Li Yang <leoli@freescale.com> - * Based on code from Shlomi Gridish <gridish@freescale.com> - * - * QUICC ENGINE Interrupt Controller - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/slab.h> -#include <linux/stddef.h> -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/device.h> -#include <linux/spinlock.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/qe_ic.h> - -#include "qe_ic.h" - -static DEFINE_RAW_SPINLOCK(qe_ic_lock); - -static struct qe_ic_info qe_ic_info[] = { - [1] = { - .mask = 0x00008000, - .mask_reg = QEIC_CIMR, - .pri_code = 0, - .pri_reg = QEIC_CIPWCC, - }, - [2] = { - .mask = 0x00004000, - .mask_reg = QEIC_CIMR, - .pri_code = 1, - .pri_reg = QEIC_CIPWCC, - }, - [3] = { - .mask = 0x00002000, - .mask_reg = QEIC_CIMR, - .pri_code = 2, - .pri_reg = QEIC_CIPWCC, - }, - [10] = { - .mask = 0x00000040, - .mask_reg = QEIC_CIMR, - .pri_code = 1, - .pri_reg = QEIC_CIPZCC, - }, - [11] = { - .mask = 0x00000020, - .mask_reg = QEIC_CIMR, - .pri_code = 2, - .pri_reg = QEIC_CIPZCC, - }, - [12] = { - .mask = 0x00000010, - .mask_reg = QEIC_CIMR, - .pri_code = 3, - .pri_reg = QEIC_CIPZCC, - }, - [13] = { - .mask = 0x00000008, - .mask_reg = QEIC_CIMR, - .pri_code = 4, - .pri_reg = QEIC_CIPZCC, - }, - [14] = { - .mask = 0x00000004, - .mask_reg = QEIC_CIMR, - .pri_code = 5, - .pri_reg = QEIC_CIPZCC, - }, - [15] = { - .mask = 0x00000002, - .mask_reg = QEIC_CIMR, - .pri_code = 6, - .pri_reg = QEIC_CIPZCC, - }, - [20] = { - .mask = 0x10000000, - .mask_reg = QEIC_CRIMR, - .pri_code = 3, - .pri_reg = QEIC_CIPRTA, - }, - [25] = { - .mask = 0x00800000, - .mask_reg = QEIC_CRIMR, - .pri_code = 0, - .pri_reg = QEIC_CIPRTB, - }, - [26] = { - .mask = 0x00400000, - .mask_reg = QEIC_CRIMR, - .pri_code = 1, - .pri_reg = QEIC_CIPRTB, - }, - [27] = { - .mask = 0x00200000, - .mask_reg = QEIC_CRIMR, - .pri_code = 2, - .pri_reg = QEIC_CIPRTB, - }, - [28] = { - .mask = 0x00100000, - .mask_reg = QEIC_CRIMR, - .pri_code = 3, - .pri_reg = QEIC_CIPRTB, - }, - [32] = { - .mask = 0x80000000, - .mask_reg = QEIC_CIMR, - .pri_code = 0, - .pri_reg = QEIC_CIPXCC, - }, - [33] = { - .mask = 0x40000000, - .mask_reg = QEIC_CIMR, - .pri_code = 1, - .pri_reg = QEIC_CIPXCC, - }, - [34] = { - .mask = 0x20000000, - .mask_reg = QEIC_CIMR, - .pri_code = 2, - .pri_reg = QEIC_CIPXCC, - }, - [35] = { - .mask = 0x10000000, - .mask_reg = QEIC_CIMR, - .pri_code = 3, - .pri_reg = QEIC_CIPXCC, - }, - [36] = { - .mask = 0x08000000, - .mask_reg = QEIC_CIMR, - .pri_code = 4, - .pri_reg = QEIC_CIPXCC, - }, - [40] = { - .mask = 0x00800000, - .mask_reg = QEIC_CIMR, - .pri_code = 0, - .pri_reg = QEIC_CIPYCC, - }, - [41] = { - .mask = 0x00400000, - .mask_reg = QEIC_CIMR, - .pri_code = 1, - .pri_reg = QEIC_CIPYCC, - }, - [42] = { - .mask = 0x00200000, - .mask_reg = QEIC_CIMR, - .pri_code = 2, - .pri_reg = QEIC_CIPYCC, - }, - [43] = { - .mask = 0x00100000, - .mask_reg = QEIC_CIMR, - .pri_code = 3, - .pri_reg = QEIC_CIPYCC, - }, -}; - -static inline u32 qe_ic_read(volatile __be32 __iomem * base, unsigned int reg) -{ - return in_be32(base + (reg >> 2)); -} - -static inline void qe_ic_write(volatile __be32 __iomem * base, unsigned int reg, - u32 value) -{ - out_be32(base + (reg >> 2), value); -} - -static inline struct qe_ic *qe_ic_from_irq(unsigned int virq) -{ - return irq_get_chip_data(virq); -} - -static inline struct qe_ic *qe_ic_from_irq_data(struct irq_data *d) -{ - return irq_data_get_irq_chip_data(d); -} - -static void qe_ic_unmask_irq(struct irq_data *d) -{ - struct qe_ic *qe_ic = qe_ic_from_irq_data(d); - unsigned int src = irqd_to_hwirq(d); - unsigned long flags; - u32 temp; - - raw_spin_lock_irqsave(&qe_ic_lock, flags); - - temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg); - qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg, - temp | qe_ic_info[src].mask); - - raw_spin_unlock_irqrestore(&qe_ic_lock, flags); -} - -static void qe_ic_mask_irq(struct irq_data *d) -{ - struct qe_ic *qe_ic = qe_ic_from_irq_data(d); - unsigned int src = irqd_to_hwirq(d); - unsigned long flags; - u32 temp; - - raw_spin_lock_irqsave(&qe_ic_lock, flags); - - temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg); - qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg, - temp & ~qe_ic_info[src].mask); - - /* Flush the above write before enabling interrupts; otherwise, - * spurious interrupts will sometimes happen. To be 100% sure - * that the write has reached the device before interrupts are - * enabled, the mask register would have to be read back; however, - * this is not required for correctness, only to avoid wasting - * time on a large number of spurious interrupts. In testing, - * a sync reduced the observed spurious interrupts to zero. - */ - mb(); - - raw_spin_unlock_irqrestore(&qe_ic_lock, flags); -} - -static struct irq_chip qe_ic_irq_chip = { - .name = "QEIC", - .irq_unmask = qe_ic_unmask_irq, - .irq_mask = qe_ic_mask_irq, - .irq_mask_ack = qe_ic_mask_irq, -}; - -static int qe_ic_host_match(struct irq_domain *h, struct device_node *node, - enum irq_domain_bus_token bus_token) -{ - /* Exact match, unless qe_ic node is NULL */ - struct device_node *of_node = irq_domain_get_of_node(h); - return of_node == NULL || of_node == node; -} - -static int qe_ic_host_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw) -{ - struct qe_ic *qe_ic = h->host_data; - struct irq_chip *chip; - - if (qe_ic_info[hw].mask == 0) { - printk(KERN_ERR "Can't map reserved IRQ\n"); - return -EINVAL; - } - /* Default chip */ - chip = &qe_ic->hc_irq; - - irq_set_chip_data(virq, qe_ic); - irq_set_status_flags(virq, IRQ_LEVEL); - - irq_set_chip_and_handler(virq, chip, handle_level_irq); - - return 0; -} - -static const struct irq_domain_ops qe_ic_host_ops = { - .match = qe_ic_host_match, - .map = qe_ic_host_map, - .xlate = irq_domain_xlate_onetwocell, -}; - -/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */ -unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic) -{ - int irq; - - BUG_ON(qe_ic == NULL); - - /* get the interrupt source vector. */ - irq = qe_ic_read(qe_ic->regs, QEIC_CIVEC) >> 26; - - if (irq == 0) - return NO_IRQ; - - return irq_linear_revmap(qe_ic->irqhost, irq); -} - -/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */ -unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic) -{ - int irq; - - BUG_ON(qe_ic == NULL); - - /* get the interrupt source vector. */ - irq = qe_ic_read(qe_ic->regs, QEIC_CHIVEC) >> 26; - - if (irq == 0) - return NO_IRQ; - - return irq_linear_revmap(qe_ic->irqhost, irq); -} - -void __init qe_ic_init(struct device_node *node, unsigned int flags, - void (*low_handler)(struct irq_desc *desc), - void (*high_handler)(struct irq_desc *desc)) -{ - struct qe_ic *qe_ic; - struct resource res; - u32 temp = 0, ret, high_active = 0; - - ret = of_address_to_resource(node, 0, &res); - if (ret) - return; - - qe_ic = kzalloc(sizeof(*qe_ic), GFP_KERNEL); - if (qe_ic == NULL) - return; - - qe_ic->irqhost = irq_domain_add_linear(node, NR_QE_IC_INTS, - &qe_ic_host_ops, qe_ic); - if (qe_ic->irqhost == NULL) { - kfree(qe_ic); - return; - } - - qe_ic->regs = ioremap(res.start, resource_size(&res)); - - qe_ic->hc_irq = qe_ic_irq_chip; - - qe_ic->virq_high = irq_of_parse_and_map(node, 0); - qe_ic->virq_low = irq_of_parse_and_map(node, 1); - - if (qe_ic->virq_low == NO_IRQ) { - printk(KERN_ERR "Failed to map QE_IC low IRQ\n"); - kfree(qe_ic); - return; - } - - /* default priority scheme is grouped. If spread mode is */ - /* required, configure cicr accordingly. */ - if (flags & QE_IC_SPREADMODE_GRP_W) - temp |= CICR_GWCC; - if (flags & QE_IC_SPREADMODE_GRP_X) - temp |= CICR_GXCC; - if (flags & QE_IC_SPREADMODE_GRP_Y) - temp |= CICR_GYCC; - if (flags & QE_IC_SPREADMODE_GRP_Z) - temp |= CICR_GZCC; - if (flags & QE_IC_SPREADMODE_GRP_RISCA) - temp |= CICR_GRTA; - if (flags & QE_IC_SPREADMODE_GRP_RISCB) - temp |= CICR_GRTB; - - /* choose destination signal for highest priority interrupt */ - if (flags & QE_IC_HIGH_SIGNAL) { - temp |= (SIGNAL_HIGH << CICR_HPIT_SHIFT); - high_active = 1; - } - - qe_ic_write(qe_ic->regs, QEIC_CICR, temp); - - irq_set_handler_data(qe_ic->virq_low, qe_ic); - irq_set_chained_handler(qe_ic->virq_low, low_handler); - - if (qe_ic->virq_high != NO_IRQ && - qe_ic->virq_high != qe_ic->virq_low) { - irq_set_handler_data(qe_ic->virq_high, qe_ic); - irq_set_chained_handler(qe_ic->virq_high, high_handler); - } -} - -void qe_ic_set_highest_priority(unsigned int virq, int high) -{ - struct qe_ic *qe_ic = qe_ic_from_irq(virq); - unsigned int src = virq_to_hw(virq); - u32 temp = 0; - - temp = qe_ic_read(qe_ic->regs, QEIC_CICR); - - temp &= ~CICR_HP_MASK; - temp |= src << CICR_HP_SHIFT; - - temp &= ~CICR_HPIT_MASK; - temp |= (high ? SIGNAL_HIGH : SIGNAL_LOW) << CICR_HPIT_SHIFT; - - qe_ic_write(qe_ic->regs, QEIC_CICR, temp); -} - -/* Set Priority level within its group, from 1 to 8 */ -int qe_ic_set_priority(unsigned int virq, unsigned int priority) -{ - struct qe_ic *qe_ic = qe_ic_from_irq(virq); - unsigned int src = virq_to_hw(virq); - u32 temp; - - if (priority > 8 || priority == 0) - return -EINVAL; - if (src > 127) - return -EINVAL; - if (qe_ic_info[src].pri_reg == 0) - return -EINVAL; - - temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].pri_reg); - - if (priority < 4) { - temp &= ~(0x7 << (32 - priority * 3)); - temp |= qe_ic_info[src].pri_code << (32 - priority * 3); - } else { - temp &= ~(0x7 << (24 - priority * 3)); - temp |= qe_ic_info[src].pri_code << (24 - priority * 3); - } - - qe_ic_write(qe_ic->regs, qe_ic_info[src].pri_reg, temp); - - return 0; -} - -/* Set a QE priority to use high irq, only priority 1~2 can use high irq */ -int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high) -{ - struct qe_ic *qe_ic = qe_ic_from_irq(virq); - unsigned int src = virq_to_hw(virq); - u32 temp, control_reg = QEIC_CICNR, shift = 0; - - if (priority > 2 || priority == 0) - return -EINVAL; - - switch (qe_ic_info[src].pri_reg) { - case QEIC_CIPZCC: - shift = CICNR_ZCC1T_SHIFT; - break; - case QEIC_CIPWCC: - shift = CICNR_WCC1T_SHIFT; - break; - case QEIC_CIPYCC: - shift = CICNR_YCC1T_SHIFT; - break; - case QEIC_CIPXCC: - shift = CICNR_XCC1T_SHIFT; - break; - case QEIC_CIPRTA: - shift = CRICR_RTA1T_SHIFT; - control_reg = QEIC_CRICR; - break; - case QEIC_CIPRTB: - shift = CRICR_RTB1T_SHIFT; - control_reg = QEIC_CRICR; - break; - default: - return -EINVAL; - } - - shift += (2 - priority) * 2; - temp = qe_ic_read(qe_ic->regs, control_reg); - temp &= ~(SIGNAL_MASK << shift); - temp |= (high ? SIGNAL_HIGH : SIGNAL_LOW) << shift; - qe_ic_write(qe_ic->regs, control_reg, temp); - - return 0; -} - -static struct bus_type qe_ic_subsys = { - .name = "qe_ic", - .dev_name = "qe_ic", -}; - -static struct device device_qe_ic = { - .id = 0, - .bus = &qe_ic_subsys, -}; - -static int __init init_qe_ic_sysfs(void) -{ - int rc; - - printk(KERN_DEBUG "Registering qe_ic with sysfs...\n"); - - rc = subsys_system_register(&qe_ic_subsys, NULL); - if (rc) { - printk(KERN_ERR "Failed registering qe_ic sys class\n"); - return -ENODEV; - } - rc = device_register(&device_qe_ic); - if (rc) { - printk(KERN_ERR "Failed registering qe_ic sys device\n"); - return -ENODEV; - } - return 0; -} - -subsys_initcall(init_qe_ic_sysfs); diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.h b/arch/powerpc/sysdev/qe_lib/qe_ic.h deleted file mode 100644 index efef7ab9b753..000000000000 --- a/arch/powerpc/sysdev/qe_lib/qe_ic.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * arch/powerpc/sysdev/qe_lib/qe_ic.h - * - * QUICC ENGINE Interrupt Controller Header - * - * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved. - * - * Author: Li Yang <leoli@freescale.com> - * Based on code from Shlomi Gridish <gridish@freescale.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#ifndef _POWERPC_SYSDEV_QE_IC_H -#define _POWERPC_SYSDEV_QE_IC_H - -#include <asm/qe_ic.h> - -#define NR_QE_IC_INTS 64 - -/* QE IC registers offset */ -#define QEIC_CICR 0x00 -#define QEIC_CIVEC 0x04 -#define QEIC_CRIPNR 0x08 -#define QEIC_CIPNR 0x0c -#define QEIC_CIPXCC 0x10 -#define QEIC_CIPYCC 0x14 -#define QEIC_CIPWCC 0x18 -#define QEIC_CIPZCC 0x1c -#define QEIC_CIMR 0x20 -#define QEIC_CRIMR 0x24 -#define QEIC_CICNR 0x28 -#define QEIC_CIPRTA 0x30 -#define QEIC_CIPRTB 0x34 -#define QEIC_CRICR 0x3c -#define QEIC_CHIVEC 0x60 - -/* Interrupt priority registers */ -#define CIPCC_SHIFT_PRI0 29 -#define CIPCC_SHIFT_PRI1 26 -#define CIPCC_SHIFT_PRI2 23 -#define CIPCC_SHIFT_PRI3 20 -#define CIPCC_SHIFT_PRI4 13 -#define CIPCC_SHIFT_PRI5 10 -#define CIPCC_SHIFT_PRI6 7 -#define CIPCC_SHIFT_PRI7 4 - -/* CICR priority modes */ -#define CICR_GWCC 0x00040000 -#define CICR_GXCC 0x00020000 -#define CICR_GYCC 0x00010000 -#define CICR_GZCC 0x00080000 -#define CICR_GRTA 0x00200000 -#define CICR_GRTB 0x00400000 -#define CICR_HPIT_SHIFT 8 -#define CICR_HPIT_MASK 0x00000300 -#define CICR_HP_SHIFT 24 -#define CICR_HP_MASK 0x3f000000 - -/* CICNR */ -#define CICNR_WCC1T_SHIFT 20 -#define CICNR_ZCC1T_SHIFT 28 -#define CICNR_YCC1T_SHIFT 12 -#define CICNR_XCC1T_SHIFT 4 - -/* CRICR */ -#define CRICR_RTA1T_SHIFT 20 -#define CRICR_RTB1T_SHIFT 28 - -/* Signal indicator */ -#define SIGNAL_MASK 3 -#define SIGNAL_HIGH 2 -#define SIGNAL_LOW 0 - -struct qe_ic { - /* Control registers offset */ - volatile u32 __iomem *regs; - - /* The remapper for this QEIC */ - struct irq_domain *irqhost; - - /* The "linux" controller struct */ - struct irq_chip hc_irq; - - /* VIRQ numbers of QE high/low irqs */ - unsigned int virq_high; - unsigned int virq_low; -}; - -/* - * QE interrupt controller internal structure - */ -struct qe_ic_info { - u32 mask; /* location of this source at the QIMR register. */ - u32 mask_reg; /* Mask register offset */ - u8 pri_code; /* for grouped interrupts sources - the interrupt - code as appears at the group priority register */ - u32 pri_reg; /* Group priority register offset */ -}; - -#endif /* _POWERPC_SYSDEV_QE_IC_H */ diff --git a/arch/powerpc/sysdev/qe_lib/qe_io.c b/arch/powerpc/sysdev/qe_lib/qe_io.c deleted file mode 100644 index 7ea0174f6d3d..000000000000 --- a/arch/powerpc/sysdev/qe_lib/qe_io.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * arch/powerpc/sysdev/qe_lib/qe_io.c - * - * QE Parallel I/O ports configuration routines - * - * Copyright 2006 Freescale Semiconductor, Inc. All rights reserved. - * - * Author: Li Yang <LeoLi@freescale.com> - * Based on code from Shlomi Gridish <gridish@freescale.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/ioport.h> - -#include <asm/io.h> -#include <asm/qe.h> -#include <asm/prom.h> -#include <sysdev/fsl_soc.h> - -#undef DEBUG - -static struct qe_pio_regs __iomem *par_io; -static int num_par_io_ports = 0; - -int par_io_init(struct device_node *np) -{ - struct resource res; - int ret; - const u32 *num_ports; - - /* Map Parallel I/O ports registers */ - ret = of_address_to_resource(np, 0, &res); - if (ret) - return ret; - par_io = ioremap(res.start, resource_size(&res)); - - num_ports = of_get_property(np, "num-ports", NULL); - if (num_ports) - num_par_io_ports = *num_ports; - - return 0; -} - -void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin, int dir, - int open_drain, int assignment, int has_irq) -{ - u32 pin_mask1bit; - u32 pin_mask2bits; - u32 new_mask2bits; - u32 tmp_val; - - /* calculate pin location for single and 2 bits information */ - pin_mask1bit = (u32) (1 << (QE_PIO_PINS - (pin + 1))); - - /* Set open drain, if required */ - tmp_val = in_be32(&par_io->cpodr); - if (open_drain) - out_be32(&par_io->cpodr, pin_mask1bit | tmp_val); - else - out_be32(&par_io->cpodr, ~pin_mask1bit & tmp_val); - - /* define direction */ - tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ? - in_be32(&par_io->cpdir2) : - in_be32(&par_io->cpdir1); - - /* get all bits mask for 2 bit per port */ - pin_mask2bits = (u32) (0x3 << (QE_PIO_PINS - - (pin % (QE_PIO_PINS / 2) + 1) * 2)); - - /* Get the final mask we need for the right definition */ - new_mask2bits = (u32) (dir << (QE_PIO_PINS - - (pin % (QE_PIO_PINS / 2) + 1) * 2)); - - /* clear and set 2 bits mask */ - if (pin > (QE_PIO_PINS / 2) - 1) { - out_be32(&par_io->cpdir2, - ~pin_mask2bits & tmp_val); - tmp_val &= ~pin_mask2bits; - out_be32(&par_io->cpdir2, new_mask2bits | tmp_val); - } else { - out_be32(&par_io->cpdir1, - ~pin_mask2bits & tmp_val); - tmp_val &= ~pin_mask2bits; - out_be32(&par_io->cpdir1, new_mask2bits | tmp_val); - } - /* define pin assignment */ - tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ? - in_be32(&par_io->cppar2) : - in_be32(&par_io->cppar1); - - new_mask2bits = (u32) (assignment << (QE_PIO_PINS - - (pin % (QE_PIO_PINS / 2) + 1) * 2)); - /* clear and set 2 bits mask */ - if (pin > (QE_PIO_PINS / 2) - 1) { - out_be32(&par_io->cppar2, - ~pin_mask2bits & tmp_val); - tmp_val &= ~pin_mask2bits; - out_be32(&par_io->cppar2, new_mask2bits | tmp_val); - } else { - out_be32(&par_io->cppar1, - ~pin_mask2bits & tmp_val); - tmp_val &= ~pin_mask2bits; - out_be32(&par_io->cppar1, new_mask2bits | tmp_val); - } -} -EXPORT_SYMBOL(__par_io_config_pin); - -int par_io_config_pin(u8 port, u8 pin, int dir, int open_drain, - int assignment, int has_irq) -{ - if (!par_io || port >= num_par_io_ports) - return -EINVAL; - - __par_io_config_pin(&par_io[port], pin, dir, open_drain, assignment, - has_irq); - return 0; -} -EXPORT_SYMBOL(par_io_config_pin); - -int par_io_data_set(u8 port, u8 pin, u8 val) -{ - u32 pin_mask, tmp_val; - - if (port >= num_par_io_ports) - return -EINVAL; - if (pin >= QE_PIO_PINS) - return -EINVAL; - /* calculate pin location */ - pin_mask = (u32) (1 << (QE_PIO_PINS - 1 - pin)); - - tmp_val = in_be32(&par_io[port].cpdata); - - if (val == 0) /* clear */ - out_be32(&par_io[port].cpdata, ~pin_mask & tmp_val); - else /* set */ - out_be32(&par_io[port].cpdata, pin_mask | tmp_val); - - return 0; -} -EXPORT_SYMBOL(par_io_data_set); - -int par_io_of_config(struct device_node *np) -{ - struct device_node *pio; - const phandle *ph; - int pio_map_len; - const unsigned int *pio_map; - - if (par_io == NULL) { - printk(KERN_ERR "par_io not initialized\n"); - return -1; - } - - ph = of_get_property(np, "pio-handle", NULL); - if (ph == NULL) { - printk(KERN_ERR "pio-handle not available\n"); - return -1; - } - - pio = of_find_node_by_phandle(*ph); - - pio_map = of_get_property(pio, "pio-map", &pio_map_len); - if (pio_map == NULL) { - printk(KERN_ERR "pio-map is not set!\n"); - return -1; - } - pio_map_len /= sizeof(unsigned int); - if ((pio_map_len % 6) != 0) { - printk(KERN_ERR "pio-map format wrong!\n"); - return -1; - } - - while (pio_map_len > 0) { - par_io_config_pin((u8) pio_map[0], (u8) pio_map[1], - (int) pio_map[2], (int) pio_map[3], - (int) pio_map[4], (int) pio_map[5]); - pio_map += 6; - pio_map_len -= 6; - } - of_node_put(pio); - return 0; -} -EXPORT_SYMBOL(par_io_of_config); diff --git a/arch/powerpc/sysdev/qe_lib/ucc.c b/arch/powerpc/sysdev/qe_lib/ucc.c deleted file mode 100644 index 621575b7e84a..000000000000 --- a/arch/powerpc/sysdev/qe_lib/ucc.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * arch/powerpc/sysdev/qe_lib/ucc.c - * - * QE UCC API Set - UCC specific routines implementations. - * - * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved. - * - * Authors: Shlomi Gridish <gridish@freescale.com> - * Li Yang <leoli@freescale.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/stddef.h> -#include <linux/spinlock.h> -#include <linux/export.h> - -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/immap_qe.h> -#include <asm/qe.h> -#include <asm/ucc.h> - -int ucc_set_qe_mux_mii_mng(unsigned int ucc_num) -{ - unsigned long flags; - - if (ucc_num > UCC_MAX_NUM - 1) - return -EINVAL; - - spin_lock_irqsave(&cmxgcr_lock, flags); - clrsetbits_be32(&qe_immr->qmx.cmxgcr, QE_CMXGCR_MII_ENET_MNG, - ucc_num << QE_CMXGCR_MII_ENET_MNG_SHIFT); - spin_unlock_irqrestore(&cmxgcr_lock, flags); - - return 0; -} -EXPORT_SYMBOL(ucc_set_qe_mux_mii_mng); - -/* Configure the UCC to either Slow or Fast. - * - * A given UCC can be figured to support either "slow" devices (e.g. UART) - * or "fast" devices (e.g. Ethernet). - * - * 'ucc_num' is the UCC number, from 0 - 7. - * - * This function also sets the UCC_GUEMR_SET_RESERVED3 bit because that bit - * must always be set to 1. - */ -int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed) -{ - u8 __iomem *guemr; - - /* The GUEMR register is at the same location for both slow and fast - devices, so we just use uccX.slow.guemr. */ - switch (ucc_num) { - case 0: guemr = &qe_immr->ucc1.slow.guemr; - break; - case 1: guemr = &qe_immr->ucc2.slow.guemr; - break; - case 2: guemr = &qe_immr->ucc3.slow.guemr; - break; - case 3: guemr = &qe_immr->ucc4.slow.guemr; - break; - case 4: guemr = &qe_immr->ucc5.slow.guemr; - break; - case 5: guemr = &qe_immr->ucc6.slow.guemr; - break; - case 6: guemr = &qe_immr->ucc7.slow.guemr; - break; - case 7: guemr = &qe_immr->ucc8.slow.guemr; - break; - default: - return -EINVAL; - } - - clrsetbits_8(guemr, UCC_GUEMR_MODE_MASK, - UCC_GUEMR_SET_RESERVED3 | speed); - - return 0; -} - -static void get_cmxucr_reg(unsigned int ucc_num, __be32 __iomem **cmxucr, - unsigned int *reg_num, unsigned int *shift) -{ - unsigned int cmx = ((ucc_num & 1) << 1) + (ucc_num > 3); - - *reg_num = cmx + 1; - *cmxucr = &qe_immr->qmx.cmxucr[cmx]; - *shift = 16 - 8 * (ucc_num & 2); -} - -int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask) -{ - __be32 __iomem *cmxucr; - unsigned int reg_num; - unsigned int shift; - - /* check if the UCC number is in range. */ - if (ucc_num > UCC_MAX_NUM - 1) - return -EINVAL; - - get_cmxucr_reg(ucc_num, &cmxucr, ®_num, &shift); - - if (set) - setbits32(cmxucr, mask << shift); - else - clrbits32(cmxucr, mask << shift); - - return 0; -} - -int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock, - enum comm_dir mode) -{ - __be32 __iomem *cmxucr; - unsigned int reg_num; - unsigned int shift; - u32 clock_bits = 0; - - /* check if the UCC number is in range. */ - if (ucc_num > UCC_MAX_NUM - 1) - return -EINVAL; - - /* The communications direction must be RX or TX */ - if (!((mode == COMM_DIR_RX) || (mode == COMM_DIR_TX))) - return -EINVAL; - - get_cmxucr_reg(ucc_num, &cmxucr, ®_num, &shift); - - switch (reg_num) { - case 1: - switch (clock) { - case QE_BRG1: clock_bits = 1; break; - case QE_BRG2: clock_bits = 2; break; - case QE_BRG7: clock_bits = 3; break; - case QE_BRG8: clock_bits = 4; break; - case QE_CLK9: clock_bits = 5; break; - case QE_CLK10: clock_bits = 6; break; - case QE_CLK11: clock_bits = 7; break; - case QE_CLK12: clock_bits = 8; break; - case QE_CLK15: clock_bits = 9; break; - case QE_CLK16: clock_bits = 10; break; - default: break; - } - break; - case 2: - switch (clock) { - case QE_BRG5: clock_bits = 1; break; - case QE_BRG6: clock_bits = 2; break; - case QE_BRG7: clock_bits = 3; break; - case QE_BRG8: clock_bits = 4; break; - case QE_CLK13: clock_bits = 5; break; - case QE_CLK14: clock_bits = 6; break; - case QE_CLK19: clock_bits = 7; break; - case QE_CLK20: clock_bits = 8; break; - case QE_CLK15: clock_bits = 9; break; - case QE_CLK16: clock_bits = 10; break; - default: break; - } - break; - case 3: - switch (clock) { - case QE_BRG9: clock_bits = 1; break; - case QE_BRG10: clock_bits = 2; break; - case QE_BRG15: clock_bits = 3; break; - case QE_BRG16: clock_bits = 4; break; - case QE_CLK3: clock_bits = 5; break; - case QE_CLK4: clock_bits = 6; break; - case QE_CLK17: clock_bits = 7; break; - case QE_CLK18: clock_bits = 8; break; - case QE_CLK7: clock_bits = 9; break; - case QE_CLK8: clock_bits = 10; break; - case QE_CLK16: clock_bits = 11; break; - default: break; - } - break; - case 4: - switch (clock) { - case QE_BRG13: clock_bits = 1; break; - case QE_BRG14: clock_bits = 2; break; - case QE_BRG15: clock_bits = 3; break; - case QE_BRG16: clock_bits = 4; break; - case QE_CLK5: clock_bits = 5; break; - case QE_CLK6: clock_bits = 6; break; - case QE_CLK21: clock_bits = 7; break; - case QE_CLK22: clock_bits = 8; break; - case QE_CLK7: clock_bits = 9; break; - case QE_CLK8: clock_bits = 10; break; - case QE_CLK16: clock_bits = 11; break; - default: break; - } - break; - default: break; - } - - /* Check for invalid combination of clock and UCC number */ - if (!clock_bits) - return -ENOENT; - - if (mode == COMM_DIR_RX) - shift += 4; - - clrsetbits_be32(cmxucr, QE_CMXUCR_TX_CLK_SRC_MASK << shift, - clock_bits << shift); - - return 0; -} diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c deleted file mode 100644 index 65aaf15032ae..000000000000 --- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c +++ /dev/null @@ -1,363 +0,0 @@ -/* - * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved. - * - * Authors: Shlomi Gridish <gridish@freescale.com> - * Li Yang <leoli@freescale.com> - * - * Description: - * QE UCC Fast API Set - UCC Fast specific routines implementations. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/slab.h> -#include <linux/stddef.h> -#include <linux/interrupt.h> -#include <linux/err.h> -#include <linux/export.h> - -#include <asm/io.h> -#include <asm/immap_qe.h> -#include <asm/qe.h> - -#include <asm/ucc.h> -#include <asm/ucc_fast.h> - -void ucc_fast_dump_regs(struct ucc_fast_private * uccf) -{ - printk(KERN_INFO "UCC%u Fast registers:\n", uccf->uf_info->ucc_num); - printk(KERN_INFO "Base address: 0x%p\n", uccf->uf_regs); - - printk(KERN_INFO "gumr : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->gumr, in_be32(&uccf->uf_regs->gumr)); - printk(KERN_INFO "upsmr : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->upsmr, in_be32(&uccf->uf_regs->upsmr)); - printk(KERN_INFO "utodr : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utodr, in_be16(&uccf->uf_regs->utodr)); - printk(KERN_INFO "udsr : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->udsr, in_be16(&uccf->uf_regs->udsr)); - printk(KERN_INFO "ucce : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->ucce, in_be32(&uccf->uf_regs->ucce)); - printk(KERN_INFO "uccm : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm)); - printk(KERN_INFO "uccs : addr=0x%p, val=0x%02x\n", - &uccf->uf_regs->uccs, in_8(&uccf->uf_regs->uccs)); - printk(KERN_INFO "urfb : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb)); - printk(KERN_INFO "urfs : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->urfs, in_be16(&uccf->uf_regs->urfs)); - printk(KERN_INFO "urfet : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->urfet, in_be16(&uccf->uf_regs->urfet)); - printk(KERN_INFO "urfset: addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->urfset, in_be16(&uccf->uf_regs->urfset)); - printk(KERN_INFO "utfb : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->utfb, in_be32(&uccf->uf_regs->utfb)); - printk(KERN_INFO "utfs : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utfs, in_be16(&uccf->uf_regs->utfs)); - printk(KERN_INFO "utfet : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utfet, in_be16(&uccf->uf_regs->utfet)); - printk(KERN_INFO "utftt : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utftt, in_be16(&uccf->uf_regs->utftt)); - printk(KERN_INFO "utpt : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utpt, in_be16(&uccf->uf_regs->utpt)); - printk(KERN_INFO "urtry : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry)); - printk(KERN_INFO "guemr : addr=0x%p, val=0x%02x\n", - &uccf->uf_regs->guemr, in_8(&uccf->uf_regs->guemr)); -} -EXPORT_SYMBOL(ucc_fast_dump_regs); - -u32 ucc_fast_get_qe_cr_subblock(int uccf_num) -{ - switch (uccf_num) { - case 0: return QE_CR_SUBBLOCK_UCCFAST1; - case 1: return QE_CR_SUBBLOCK_UCCFAST2; - case 2: return QE_CR_SUBBLOCK_UCCFAST3; - case 3: return QE_CR_SUBBLOCK_UCCFAST4; - case 4: return QE_CR_SUBBLOCK_UCCFAST5; - case 5: return QE_CR_SUBBLOCK_UCCFAST6; - case 6: return QE_CR_SUBBLOCK_UCCFAST7; - case 7: return QE_CR_SUBBLOCK_UCCFAST8; - default: return QE_CR_SUBBLOCK_INVALID; - } -} -EXPORT_SYMBOL(ucc_fast_get_qe_cr_subblock); - -void ucc_fast_transmit_on_demand(struct ucc_fast_private * uccf) -{ - out_be16(&uccf->uf_regs->utodr, UCC_FAST_TOD); -} -EXPORT_SYMBOL(ucc_fast_transmit_on_demand); - -void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode) -{ - struct ucc_fast __iomem *uf_regs; - u32 gumr; - - uf_regs = uccf->uf_regs; - - /* Enable reception and/or transmission on this UCC. */ - gumr = in_be32(&uf_regs->gumr); - if (mode & COMM_DIR_TX) { - gumr |= UCC_FAST_GUMR_ENT; - uccf->enabled_tx = 1; - } - if (mode & COMM_DIR_RX) { - gumr |= UCC_FAST_GUMR_ENR; - uccf->enabled_rx = 1; - } - out_be32(&uf_regs->gumr, gumr); -} -EXPORT_SYMBOL(ucc_fast_enable); - -void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode) -{ - struct ucc_fast __iomem *uf_regs; - u32 gumr; - - uf_regs = uccf->uf_regs; - - /* Disable reception and/or transmission on this UCC. */ - gumr = in_be32(&uf_regs->gumr); - if (mode & COMM_DIR_TX) { - gumr &= ~UCC_FAST_GUMR_ENT; - uccf->enabled_tx = 0; - } - if (mode & COMM_DIR_RX) { - gumr &= ~UCC_FAST_GUMR_ENR; - uccf->enabled_rx = 0; - } - out_be32(&uf_regs->gumr, gumr); -} -EXPORT_SYMBOL(ucc_fast_disable); - -int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** uccf_ret) -{ - struct ucc_fast_private *uccf; - struct ucc_fast __iomem *uf_regs; - u32 gumr; - int ret; - - if (!uf_info) - return -EINVAL; - - /* check if the UCC port number is in range. */ - if ((uf_info->ucc_num < 0) || (uf_info->ucc_num > UCC_MAX_NUM - 1)) { - printk(KERN_ERR "%s: illegal UCC number\n", __func__); - return -EINVAL; - } - - /* Check that 'max_rx_buf_length' is properly aligned (4). */ - if (uf_info->max_rx_buf_length & (UCC_FAST_MRBLR_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: max_rx_buf_length not aligned\n", - __func__); - return -EINVAL; - } - - /* Validate Virtual Fifo register values */ - if (uf_info->urfs < UCC_FAST_URFS_MIN_VAL) { - printk(KERN_ERR "%s: urfs is too small\n", __func__); - return -EINVAL; - } - - if (uf_info->urfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: urfs is not aligned\n", __func__); - return -EINVAL; - } - - if (uf_info->urfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: urfet is not aligned.\n", __func__); - return -EINVAL; - } - - if (uf_info->urfset & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: urfset is not aligned\n", __func__); - return -EINVAL; - } - - if (uf_info->utfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: utfs is not aligned\n", __func__); - return -EINVAL; - } - - if (uf_info->utfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: utfet is not aligned\n", __func__); - return -EINVAL; - } - - if (uf_info->utftt & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) { - printk(KERN_ERR "%s: utftt is not aligned\n", __func__); - return -EINVAL; - } - - uccf = kzalloc(sizeof(struct ucc_fast_private), GFP_KERNEL); - if (!uccf) { - printk(KERN_ERR "%s: Cannot allocate private data\n", - __func__); - return -ENOMEM; - } - - /* Fill fast UCC structure */ - uccf->uf_info = uf_info; - /* Set the PHY base address */ - uccf->uf_regs = ioremap(uf_info->regs, sizeof(struct ucc_fast)); - if (uccf->uf_regs == NULL) { - printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__); - kfree(uccf); - return -ENOMEM; - } - - uccf->enabled_tx = 0; - uccf->enabled_rx = 0; - uccf->stopped_tx = 0; - uccf->stopped_rx = 0; - uf_regs = uccf->uf_regs; - uccf->p_ucce = &uf_regs->ucce; - uccf->p_uccm = &uf_regs->uccm; -#ifdef CONFIG_UGETH_TX_ON_DEMAND - uccf->p_utodr = &uf_regs->utodr; -#endif -#ifdef STATISTICS - uccf->tx_frames = 0; - uccf->rx_frames = 0; - uccf->rx_discarded = 0; -#endif /* STATISTICS */ - - /* Set UCC to fast type */ - ret = ucc_set_type(uf_info->ucc_num, UCC_SPEED_TYPE_FAST); - if (ret) { - printk(KERN_ERR "%s: cannot set UCC type\n", __func__); - ucc_fast_free(uccf); - return ret; - } - - uccf->mrblr = uf_info->max_rx_buf_length; - - /* Set GUMR */ - /* For more details see the hardware spec. */ - gumr = uf_info->ttx_trx; - if (uf_info->tci) - gumr |= UCC_FAST_GUMR_TCI; - if (uf_info->cdp) - gumr |= UCC_FAST_GUMR_CDP; - if (uf_info->ctsp) - gumr |= UCC_FAST_GUMR_CTSP; - if (uf_info->cds) - gumr |= UCC_FAST_GUMR_CDS; - if (uf_info->ctss) - gumr |= UCC_FAST_GUMR_CTSS; - if (uf_info->txsy) - gumr |= UCC_FAST_GUMR_TXSY; - if (uf_info->rsyn) - gumr |= UCC_FAST_GUMR_RSYN; - gumr |= uf_info->synl; - if (uf_info->rtsm) - gumr |= UCC_FAST_GUMR_RTSM; - gumr |= uf_info->renc; - if (uf_info->revd) - gumr |= UCC_FAST_GUMR_REVD; - gumr |= uf_info->tenc; - gumr |= uf_info->tcrc; - gumr |= uf_info->mode; - out_be32(&uf_regs->gumr, gumr); - - /* Allocate memory for Tx Virtual Fifo */ - uccf->ucc_fast_tx_virtual_fifo_base_offset = - qe_muram_alloc(uf_info->utfs, UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT); - if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) { - printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO\n", - __func__); - uccf->ucc_fast_tx_virtual_fifo_base_offset = 0; - ucc_fast_free(uccf); - return -ENOMEM; - } - - /* Allocate memory for Rx Virtual Fifo */ - uccf->ucc_fast_rx_virtual_fifo_base_offset = - qe_muram_alloc(uf_info->urfs + - UCC_FAST_RECEIVE_VIRTUAL_FIFO_SIZE_FUDGE_FACTOR, - UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT); - if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) { - printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO\n", - __func__); - uccf->ucc_fast_rx_virtual_fifo_base_offset = 0; - ucc_fast_free(uccf); - return -ENOMEM; - } - - /* Set Virtual Fifo registers */ - out_be16(&uf_regs->urfs, uf_info->urfs); - out_be16(&uf_regs->urfet, uf_info->urfet); - out_be16(&uf_regs->urfset, uf_info->urfset); - out_be16(&uf_regs->utfs, uf_info->utfs); - out_be16(&uf_regs->utfet, uf_info->utfet); - out_be16(&uf_regs->utftt, uf_info->utftt); - /* utfb, urfb are offsets from MURAM base */ - out_be32(&uf_regs->utfb, uccf->ucc_fast_tx_virtual_fifo_base_offset); - out_be32(&uf_regs->urfb, uccf->ucc_fast_rx_virtual_fifo_base_offset); - - /* Mux clocking */ - /* Grant Support */ - ucc_set_qe_mux_grant(uf_info->ucc_num, uf_info->grant_support); - /* Breakpoint Support */ - ucc_set_qe_mux_bkpt(uf_info->ucc_num, uf_info->brkpt_support); - /* Set Tsa or NMSI mode. */ - ucc_set_qe_mux_tsa(uf_info->ucc_num, uf_info->tsa); - /* If NMSI (not Tsa), set Tx and Rx clock. */ - if (!uf_info->tsa) { - /* Rx clock routing */ - if ((uf_info->rx_clock != QE_CLK_NONE) && - ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->rx_clock, - COMM_DIR_RX)) { - printk(KERN_ERR "%s: illegal value for RX clock\n", - __func__); - ucc_fast_free(uccf); - return -EINVAL; - } - /* Tx clock routing */ - if ((uf_info->tx_clock != QE_CLK_NONE) && - ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->tx_clock, - COMM_DIR_TX)) { - printk(KERN_ERR "%s: illegal value for TX clock\n", - __func__); - ucc_fast_free(uccf); - return -EINVAL; - } - } - - /* Set interrupt mask register at UCC level. */ - out_be32(&uf_regs->uccm, uf_info->uccm_mask); - - /* First, clear anything pending at UCC level, - * otherwise, old garbage may come through - * as soon as the dam is opened. */ - - /* Writing '1' clears */ - out_be32(&uf_regs->ucce, 0xffffffff); - - *uccf_ret = uccf; - return 0; -} -EXPORT_SYMBOL(ucc_fast_init); - -void ucc_fast_free(struct ucc_fast_private * uccf) -{ - if (!uccf) - return; - - if (uccf->ucc_fast_tx_virtual_fifo_base_offset) - qe_muram_free(uccf->ucc_fast_tx_virtual_fifo_base_offset); - - if (uccf->ucc_fast_rx_virtual_fifo_base_offset) - qe_muram_free(uccf->ucc_fast_rx_virtual_fifo_base_offset); - - if (uccf->uf_regs) - iounmap(uccf->uf_regs); - - kfree(uccf); -} -EXPORT_SYMBOL(ucc_fast_free); diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c deleted file mode 100644 index 5f91628209eb..000000000000 --- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c +++ /dev/null @@ -1,374 +0,0 @@ -/* - * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved. - * - * Authors: Shlomi Gridish <gridish@freescale.com> - * Li Yang <leoli@freescale.com> - * - * Description: - * QE UCC Slow API Set - UCC Slow specific routines implementations. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/slab.h> -#include <linux/stddef.h> -#include <linux/interrupt.h> -#include <linux/err.h> -#include <linux/export.h> - -#include <asm/io.h> -#include <asm/immap_qe.h> -#include <asm/qe.h> - -#include <asm/ucc.h> -#include <asm/ucc_slow.h> - -u32 ucc_slow_get_qe_cr_subblock(int uccs_num) -{ - switch (uccs_num) { - case 0: return QE_CR_SUBBLOCK_UCCSLOW1; - case 1: return QE_CR_SUBBLOCK_UCCSLOW2; - case 2: return QE_CR_SUBBLOCK_UCCSLOW3; - case 3: return QE_CR_SUBBLOCK_UCCSLOW4; - case 4: return QE_CR_SUBBLOCK_UCCSLOW5; - case 5: return QE_CR_SUBBLOCK_UCCSLOW6; - case 6: return QE_CR_SUBBLOCK_UCCSLOW7; - case 7: return QE_CR_SUBBLOCK_UCCSLOW8; - default: return QE_CR_SUBBLOCK_INVALID; - } -} -EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock); - -void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs) -{ - struct ucc_slow_info *us_info = uccs->us_info; - u32 id; - - id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num); - qe_issue_cmd(QE_GRACEFUL_STOP_TX, id, - QE_CR_PROTOCOL_UNSPECIFIED, 0); -} -EXPORT_SYMBOL(ucc_slow_graceful_stop_tx); - -void ucc_slow_stop_tx(struct ucc_slow_private * uccs) -{ - struct ucc_slow_info *us_info = uccs->us_info; - u32 id; - - id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num); - qe_issue_cmd(QE_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0); -} -EXPORT_SYMBOL(ucc_slow_stop_tx); - -void ucc_slow_restart_tx(struct ucc_slow_private * uccs) -{ - struct ucc_slow_info *us_info = uccs->us_info; - u32 id; - - id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num); - qe_issue_cmd(QE_RESTART_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0); -} -EXPORT_SYMBOL(ucc_slow_restart_tx); - -void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode) -{ - struct ucc_slow *us_regs; - u32 gumr_l; - - us_regs = uccs->us_regs; - - /* Enable reception and/or transmission on this UCC. */ - gumr_l = in_be32(&us_regs->gumr_l); - if (mode & COMM_DIR_TX) { - gumr_l |= UCC_SLOW_GUMR_L_ENT; - uccs->enabled_tx = 1; - } - if (mode & COMM_DIR_RX) { - gumr_l |= UCC_SLOW_GUMR_L_ENR; - uccs->enabled_rx = 1; - } - out_be32(&us_regs->gumr_l, gumr_l); -} -EXPORT_SYMBOL(ucc_slow_enable); - -void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode) -{ - struct ucc_slow *us_regs; - u32 gumr_l; - - us_regs = uccs->us_regs; - - /* Disable reception and/or transmission on this UCC. */ - gumr_l = in_be32(&us_regs->gumr_l); - if (mode & COMM_DIR_TX) { - gumr_l &= ~UCC_SLOW_GUMR_L_ENT; - uccs->enabled_tx = 0; - } - if (mode & COMM_DIR_RX) { - gumr_l &= ~UCC_SLOW_GUMR_L_ENR; - uccs->enabled_rx = 0; - } - out_be32(&us_regs->gumr_l, gumr_l); -} -EXPORT_SYMBOL(ucc_slow_disable); - -/* Initialize the UCC for Slow operations - * - * The caller should initialize the following us_info - */ -int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** uccs_ret) -{ - struct ucc_slow_private *uccs; - u32 i; - struct ucc_slow __iomem *us_regs; - u32 gumr; - struct qe_bd *bd; - u32 id; - u32 command; - int ret = 0; - - if (!us_info) - return -EINVAL; - - /* check if the UCC port number is in range. */ - if ((us_info->ucc_num < 0) || (us_info->ucc_num > UCC_MAX_NUM - 1)) { - printk(KERN_ERR "%s: illegal UCC number\n", __func__); - return -EINVAL; - } - - /* - * Set mrblr - * Check that 'max_rx_buf_length' is properly aligned (4), unless - * rfw is 1, meaning that QE accepts one byte at a time, unlike normal - * case when QE accepts 32 bits at a time. - */ - if ((!us_info->rfw) && - (us_info->max_rx_buf_length & (UCC_SLOW_MRBLR_ALIGNMENT - 1))) { - printk(KERN_ERR "max_rx_buf_length not aligned.\n"); - return -EINVAL; - } - - uccs = kzalloc(sizeof(struct ucc_slow_private), GFP_KERNEL); - if (!uccs) { - printk(KERN_ERR "%s: Cannot allocate private data\n", - __func__); - return -ENOMEM; - } - - /* Fill slow UCC structure */ - uccs->us_info = us_info; - /* Set the PHY base address */ - uccs->us_regs = ioremap(us_info->regs, sizeof(struct ucc_slow)); - if (uccs->us_regs == NULL) { - printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__); - kfree(uccs); - return -ENOMEM; - } - - uccs->saved_uccm = 0; - uccs->p_rx_frame = 0; - us_regs = uccs->us_regs; - uccs->p_ucce = (u16 *) & (us_regs->ucce); - uccs->p_uccm = (u16 *) & (us_regs->uccm); -#ifdef STATISTICS - uccs->rx_frames = 0; - uccs->tx_frames = 0; - uccs->rx_discarded = 0; -#endif /* STATISTICS */ - - /* Get PRAM base */ - uccs->us_pram_offset = - qe_muram_alloc(UCC_SLOW_PRAM_SIZE, ALIGNMENT_OF_UCC_SLOW_PRAM); - if (IS_ERR_VALUE(uccs->us_pram_offset)) { - printk(KERN_ERR "%s: cannot allocate MURAM for PRAM", __func__); - ucc_slow_free(uccs); - return -ENOMEM; - } - id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num); - qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, us_info->protocol, - uccs->us_pram_offset); - - uccs->us_pram = qe_muram_addr(uccs->us_pram_offset); - - /* Set UCC to slow type */ - ret = ucc_set_type(us_info->ucc_num, UCC_SPEED_TYPE_SLOW); - if (ret) { - printk(KERN_ERR "%s: cannot set UCC type", __func__); - ucc_slow_free(uccs); - return ret; - } - - out_be16(&uccs->us_pram->mrblr, us_info->max_rx_buf_length); - - INIT_LIST_HEAD(&uccs->confQ); - - /* Allocate BDs. */ - uccs->rx_base_offset = - qe_muram_alloc(us_info->rx_bd_ring_len * sizeof(struct qe_bd), - QE_ALIGNMENT_OF_BD); - if (IS_ERR_VALUE(uccs->rx_base_offset)) { - printk(KERN_ERR "%s: cannot allocate %u RX BDs\n", __func__, - us_info->rx_bd_ring_len); - uccs->rx_base_offset = 0; - ucc_slow_free(uccs); - return -ENOMEM; - } - - uccs->tx_base_offset = - qe_muram_alloc(us_info->tx_bd_ring_len * sizeof(struct qe_bd), - QE_ALIGNMENT_OF_BD); - if (IS_ERR_VALUE(uccs->tx_base_offset)) { - printk(KERN_ERR "%s: cannot allocate TX BDs", __func__); - uccs->tx_base_offset = 0; - ucc_slow_free(uccs); - return -ENOMEM; - } - - /* Init Tx bds */ - bd = uccs->confBd = uccs->tx_bd = qe_muram_addr(uccs->tx_base_offset); - for (i = 0; i < us_info->tx_bd_ring_len - 1; i++) { - /* clear bd buffer */ - out_be32(&bd->buf, 0); - /* set bd status and length */ - out_be32((u32 *) bd, 0); - bd++; - } - /* for last BD set Wrap bit */ - out_be32(&bd->buf, 0); - out_be32((u32 *) bd, cpu_to_be32(T_W)); - - /* Init Rx bds */ - bd = uccs->rx_bd = qe_muram_addr(uccs->rx_base_offset); - for (i = 0; i < us_info->rx_bd_ring_len - 1; i++) { - /* set bd status and length */ - out_be32((u32*)bd, 0); - /* clear bd buffer */ - out_be32(&bd->buf, 0); - bd++; - } - /* for last BD set Wrap bit */ - out_be32((u32*)bd, cpu_to_be32(R_W)); - out_be32(&bd->buf, 0); - - /* Set GUMR (For more details see the hardware spec.). */ - /* gumr_h */ - gumr = us_info->tcrc; - if (us_info->cdp) - gumr |= UCC_SLOW_GUMR_H_CDP; - if (us_info->ctsp) - gumr |= UCC_SLOW_GUMR_H_CTSP; - if (us_info->cds) - gumr |= UCC_SLOW_GUMR_H_CDS; - if (us_info->ctss) - gumr |= UCC_SLOW_GUMR_H_CTSS; - if (us_info->tfl) - gumr |= UCC_SLOW_GUMR_H_TFL; - if (us_info->rfw) - gumr |= UCC_SLOW_GUMR_H_RFW; - if (us_info->txsy) - gumr |= UCC_SLOW_GUMR_H_TXSY; - if (us_info->rtsm) - gumr |= UCC_SLOW_GUMR_H_RTSM; - out_be32(&us_regs->gumr_h, gumr); - - /* gumr_l */ - gumr = us_info->tdcr | us_info->rdcr | us_info->tenc | us_info->renc | - us_info->diag | us_info->mode; - if (us_info->tci) - gumr |= UCC_SLOW_GUMR_L_TCI; - if (us_info->rinv) - gumr |= UCC_SLOW_GUMR_L_RINV; - if (us_info->tinv) - gumr |= UCC_SLOW_GUMR_L_TINV; - if (us_info->tend) - gumr |= UCC_SLOW_GUMR_L_TEND; - out_be32(&us_regs->gumr_l, gumr); - - /* Function code registers */ - - /* if the data is in cachable memory, the 'global' */ - /* in the function code should be set. */ - uccs->us_pram->tbmr = UCC_BMR_BO_BE; - uccs->us_pram->rbmr = UCC_BMR_BO_BE; - - /* rbase, tbase are offsets from MURAM base */ - out_be16(&uccs->us_pram->rbase, uccs->rx_base_offset); - out_be16(&uccs->us_pram->tbase, uccs->tx_base_offset); - - /* Mux clocking */ - /* Grant Support */ - ucc_set_qe_mux_grant(us_info->ucc_num, us_info->grant_support); - /* Breakpoint Support */ - ucc_set_qe_mux_bkpt(us_info->ucc_num, us_info->brkpt_support); - /* Set Tsa or NMSI mode. */ - ucc_set_qe_mux_tsa(us_info->ucc_num, us_info->tsa); - /* If NMSI (not Tsa), set Tx and Rx clock. */ - if (!us_info->tsa) { - /* Rx clock routing */ - if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->rx_clock, - COMM_DIR_RX)) { - printk(KERN_ERR "%s: illegal value for RX clock\n", - __func__); - ucc_slow_free(uccs); - return -EINVAL; - } - /* Tx clock routing */ - if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->tx_clock, - COMM_DIR_TX)) { - printk(KERN_ERR "%s: illegal value for TX clock\n", - __func__); - ucc_slow_free(uccs); - return -EINVAL; - } - } - - /* Set interrupt mask register at UCC level. */ - out_be16(&us_regs->uccm, us_info->uccm_mask); - - /* First, clear anything pending at UCC level, - * otherwise, old garbage may come through - * as soon as the dam is opened. */ - - /* Writing '1' clears */ - out_be16(&us_regs->ucce, 0xffff); - - /* Issue QE Init command */ - if (us_info->init_tx && us_info->init_rx) - command = QE_INIT_TX_RX; - else if (us_info->init_tx) - command = QE_INIT_TX; - else - command = QE_INIT_RX; /* We know at least one is TRUE */ - - qe_issue_cmd(command, id, us_info->protocol, 0); - - *uccs_ret = uccs; - return 0; -} -EXPORT_SYMBOL(ucc_slow_init); - -void ucc_slow_free(struct ucc_slow_private * uccs) -{ - if (!uccs) - return; - - if (uccs->rx_base_offset) - qe_muram_free(uccs->rx_base_offset); - - if (uccs->tx_base_offset) - qe_muram_free(uccs->tx_base_offset); - - if (uccs->us_pram) - qe_muram_free(uccs->us_pram_offset); - - if (uccs->us_regs) - iounmap(uccs->us_regs); - - kfree(uccs); -} -EXPORT_SYMBOL(ucc_slow_free); - diff --git a/arch/powerpc/sysdev/qe_lib/usb.c b/arch/powerpc/sysdev/qe_lib/usb.c deleted file mode 100644 index 27f23bd15eb6..000000000000 --- a/arch/powerpc/sysdev/qe_lib/usb.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * QE USB routines - * - * Copyright 2006 Freescale Semiconductor, Inc. - * Shlomi Gridish <gridish@freescale.com> - * Jerry Huang <Chang-Ming.Huang@freescale.com> - * Copyright (c) MontaVista Software, Inc. 2008. - * Anton Vorontsov <avorontsov@ru.mvista.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/export.h> -#include <linux/io.h> -#include <asm/immap_qe.h> -#include <asm/qe.h> - -int qe_usb_clock_set(enum qe_clock clk, int rate) -{ - struct qe_mux __iomem *mux = &qe_immr->qmx; - unsigned long flags; - u32 val; - - switch (clk) { - case QE_CLK3: val = QE_CMXGCR_USBCS_CLK3; break; - case QE_CLK5: val = QE_CMXGCR_USBCS_CLK5; break; - case QE_CLK7: val = QE_CMXGCR_USBCS_CLK7; break; - case QE_CLK9: val = QE_CMXGCR_USBCS_CLK9; break; - case QE_CLK13: val = QE_CMXGCR_USBCS_CLK13; break; - case QE_CLK17: val = QE_CMXGCR_USBCS_CLK17; break; - case QE_CLK19: val = QE_CMXGCR_USBCS_CLK19; break; - case QE_CLK21: val = QE_CMXGCR_USBCS_CLK21; break; - case QE_BRG9: val = QE_CMXGCR_USBCS_BRG9; break; - case QE_BRG10: val = QE_CMXGCR_USBCS_BRG10; break; - default: - pr_err("%s: requested unknown clock %d\n", __func__, clk); - return -EINVAL; - } - - if (qe_clock_is_brg(clk)) - qe_setbrg(clk, rate, 1); - - spin_lock_irqsave(&cmxgcr_lock, flags); - - clrsetbits_be32(&mux->cmxgcr, QE_CMXGCR_USBCS, val); - - spin_unlock_irqrestore(&cmxgcr_lock, flags); - - return 0; -} -EXPORT_SYMBOL(qe_usb_clock_set); |