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Diffstat (limited to 'arch/arm/mach-omap2/omap_l3_smx.c')
-rw-r--r--arch/arm/mach-omap2/omap_l3_smx.c297
1 files changed, 0 insertions, 297 deletions
diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
deleted file mode 100644
index acc216491b8a..000000000000
--- a/arch/arm/mach-omap2/omap_l3_smx.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * OMAP3XXX L3 Interconnect Driver
- *
- * Copyright (C) 2011 Texas Corporation
- * Felipe Balbi <balbi@ti.com>
- * Santosh Shilimkar <santosh.shilimkar@ti.com>
- * Sricharan <r.sricharan@ti.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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include "omap_l3_smx.h"
-
-static inline u64 omap3_l3_readll(void __iomem *base, u16 reg)
-{
- return __raw_readll(base + reg);
-}
-
-static inline void omap3_l3_writell(void __iomem *base, u16 reg, u64 value)
-{
- __raw_writell(value, base + reg);
-}
-
-static inline enum omap3_l3_code omap3_l3_decode_error_code(u64 error)
-{
- return (error & 0x0f000000) >> L3_ERROR_LOG_CODE;
-}
-
-static inline u32 omap3_l3_decode_addr(u64 error_addr)
-{
- return error_addr & 0xffffffff;
-}
-
-static inline unsigned omap3_l3_decode_cmd(u64 error)
-{
- return (error & 0x07) >> L3_ERROR_LOG_CMD;
-}
-
-static inline enum omap3_l3_initiator_id omap3_l3_decode_initid(u64 error)
-{
- return (error & 0xff00) >> L3_ERROR_LOG_INITID;
-}
-
-static inline unsigned omap3_l3_decode_req_info(u64 error)
-{
- return (error >> 32) & 0xffff;
-}
-
-static char *omap3_l3_code_string(u8 code)
-{
- switch (code) {
- case OMAP_L3_CODE_NOERROR:
- return "No Error";
- case OMAP_L3_CODE_UNSUP_CMD:
- return "Unsupported Command";
- case OMAP_L3_CODE_ADDR_HOLE:
- return "Address Hole";
- case OMAP_L3_CODE_PROTECT_VIOLATION:
- return "Protection Violation";
- case OMAP_L3_CODE_IN_BAND_ERR:
- return "In-band Error";
- case OMAP_L3_CODE_REQ_TOUT_NOT_ACCEPT:
- return "Request Timeout Not Accepted";
- case OMAP_L3_CODE_REQ_TOUT_NO_RESP:
- return "Request Timeout, no response";
- default:
- return "UNKNOWN error";
- }
-}
-
-static char *omap3_l3_initiator_string(u8 initid)
-{
- switch (initid) {
- case OMAP_L3_LCD:
- return "LCD";
- case OMAP_L3_SAD2D:
- return "SAD2D";
- case OMAP_L3_IA_MPU_SS_1:
- case OMAP_L3_IA_MPU_SS_2:
- case OMAP_L3_IA_MPU_SS_3:
- case OMAP_L3_IA_MPU_SS_4:
- case OMAP_L3_IA_MPU_SS_5:
- return "MPU";
- case OMAP_L3_IA_IVA_SS_1:
- case OMAP_L3_IA_IVA_SS_2:
- case OMAP_L3_IA_IVA_SS_3:
- return "IVA_SS";
- case OMAP_L3_IA_IVA_SS_DMA_1:
- case OMAP_L3_IA_IVA_SS_DMA_2:
- case OMAP_L3_IA_IVA_SS_DMA_3:
- case OMAP_L3_IA_IVA_SS_DMA_4:
- case OMAP_L3_IA_IVA_SS_DMA_5:
- case OMAP_L3_IA_IVA_SS_DMA_6:
- return "IVA_SS_DMA";
- case OMAP_L3_IA_SGX:
- return "SGX";
- case OMAP_L3_IA_CAM_1:
- case OMAP_L3_IA_CAM_2:
- case OMAP_L3_IA_CAM_3:
- return "CAM";
- case OMAP_L3_IA_DAP:
- return "DAP";
- case OMAP_L3_SDMA_WR_1:
- case OMAP_L3_SDMA_WR_2:
- return "SDMA_WR";
- case OMAP_L3_SDMA_RD_1:
- case OMAP_L3_SDMA_RD_2:
- case OMAP_L3_SDMA_RD_3:
- case OMAP_L3_SDMA_RD_4:
- return "SDMA_RD";
- case OMAP_L3_USBOTG:
- return "USB_OTG";
- case OMAP_L3_USBHOST:
- return "USB_HOST";
- default:
- return "UNKNOWN Initiator";
- }
-}
-
-/*
- * omap3_l3_block_irq - handles a register block's irq
- * @l3: struct omap3_l3 *
- * @base: register block base address
- * @error: L3_ERROR_LOG register of our block
- *
- * Called in hard-irq context. Caller should take care of locking
- *
- * OMAP36xx TRM gives, on page 2001, Figure 9-10, the Typical Error
- * Analysis Sequence, we are following that sequence here, please
- * refer to that Figure for more information on the subject.
- */
-static irqreturn_t omap3_l3_block_irq(struct omap3_l3 *l3,
- u64 error, int error_addr)
-{
- u8 code = omap3_l3_decode_error_code(error);
- u8 initid = omap3_l3_decode_initid(error);
- u8 multi = error & L3_ERROR_LOG_MULTI;
- u32 address = omap3_l3_decode_addr(error_addr);
-
- pr_err("%s seen by %s %s at address %x\n",
- omap3_l3_code_string(code),
- omap3_l3_initiator_string(initid),
- multi ? "Multiple Errors" : "", address);
- WARN_ON(1);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
-{
- struct omap3_l3 *l3 = _l3;
- u64 status, clear;
- u64 error;
- u64 error_addr;
- u64 err_source = 0;
- void __iomem *base;
- int int_type;
- irqreturn_t ret = IRQ_NONE;
-
- int_type = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
- if (!int_type) {
- status = omap3_l3_readll(l3->rt, L3_SI_FLAG_STATUS_0);
- /*
- * if we have a timeout error, there's nothing we can
- * do besides rebooting the board. So let's BUG on any
- * of such errors and handle the others. timeout error
- * is severe and not expected to occur.
- */
- BUG_ON(status & L3_STATUS_0_TIMEOUT_MASK);
- } else {
- status = omap3_l3_readll(l3->rt, L3_SI_FLAG_STATUS_1);
- /* No timeout error for debug sources */
- }
-
- /* identify the error source */
- err_source = __ffs(status);
-
- base = l3->rt + omap3_l3_bases[int_type][err_source];
- error = omap3_l3_readll(base, L3_ERROR_LOG);
- if (error) {
- error_addr = omap3_l3_readll(base, L3_ERROR_LOG_ADDR);
- ret |= omap3_l3_block_irq(l3, error, error_addr);
- }
-
- /* Clear the status register */
- clear = (L3_AGENT_STATUS_CLEAR_IA << int_type) |
- L3_AGENT_STATUS_CLEAR_TA;
- omap3_l3_writell(base, L3_AGENT_STATUS, clear);
-
- /* clear the error log register */
- omap3_l3_writell(base, L3_ERROR_LOG, error);
-
- return ret;
-}
-
-static int __init omap3_l3_probe(struct platform_device *pdev)
-{
- struct omap3_l3 *l3;
- struct resource *res;
- int ret;
-
- l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
- if (!l3)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, l3);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "couldn't find resource\n");
- ret = -ENODEV;
- goto err0;
- }
- l3->rt = ioremap(res->start, resource_size(res));
- if (!l3->rt) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err0;
- }
-
- l3->debug_irq = platform_get_irq(pdev, 0);
- ret = request_irq(l3->debug_irq, omap3_l3_app_irq,
- IRQF_DISABLED | IRQF_TRIGGER_RISING,
- "l3-debug-irq", l3);
- if (ret) {
- dev_err(&pdev->dev, "couldn't request debug irq\n");
- goto err1;
- }
-
- l3->app_irq = platform_get_irq(pdev, 1);
- ret = request_irq(l3->app_irq, omap3_l3_app_irq,
- IRQF_DISABLED | IRQF_TRIGGER_RISING,
- "l3-app-irq", l3);
- if (ret) {
- dev_err(&pdev->dev, "couldn't request app irq\n");
- goto err2;
- }
-
- return 0;
-
-err2:
- free_irq(l3->debug_irq, l3);
-err1:
- iounmap(l3->rt);
-err0:
- kfree(l3);
- return ret;
-}
-
-static int __exit omap3_l3_remove(struct platform_device *pdev)
-{
- struct omap3_l3 *l3 = platform_get_drvdata(pdev);
-
- free_irq(l3->app_irq, l3);
- free_irq(l3->debug_irq, l3);
- iounmap(l3->rt);
- kfree(l3);
-
- return 0;
-}
-
-static struct platform_driver omap3_l3_driver = {
- .remove = __exit_p(omap3_l3_remove),
- .driver = {
- .name = "omap_l3_smx",
- },
-};
-
-static int __init omap3_l3_init(void)
-{
- return platform_driver_probe(&omap3_l3_driver, omap3_l3_probe);
-}
-postcore_initcall_sync(omap3_l3_init);
-
-static void __exit omap3_l3_exit(void)
-{
- platform_driver_unregister(&omap3_l3_driver);
-}
-module_exit(omap3_l3_exit);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 04:40:22 +0000