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Diffstat (limited to 'arch/arm/mach-omap2/omap_l3_noc.c')
-rw-r--r--arch/arm/mach-omap2/omap_l3_noc.c266
1 files changed, 0 insertions, 266 deletions
diff --git a/arch/arm/mach-omap2/omap_l3_noc.c b/arch/arm/mach-omap2/omap_l3_noc.c
deleted file mode 100644
index d15225ff5c49..000000000000
--- a/arch/arm/mach-omap2/omap_l3_noc.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/*
- * OMAP4XXX L3 Interconnect error handling driver
- *
- * Copyright (C) 2011 Texas Corporation
- * 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/module.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include "omap_l3_noc.h"
-
-/*
- * Interrupt Handler for L3 error detection.
- * 1) Identify the L3 clockdomain partition to which the error belongs to.
- * 2) Identify the slave where the error information is logged
- * 3) Print the logged information.
- * 4) Add dump stack to provide kernel trace.
- *
- * Two Types of errors :
- * 1) Custom errors in L3 :
- * Target like DMM/FW/EMIF generates SRESP=ERR error
- * 2) Standard L3 error:
- * - Unsupported CMD.
- * L3 tries to access target while it is idle
- * - OCP disconnect.
- * - Address hole error:
- * If DSS/ISS/FDIF/USBHOSTFS access a target where they
- * do not have connectivity, the error is logged in
- * their default target which is DMM2.
- *
- * On High Secure devices, firewall errors are possible and those
- * can be trapped as well. But the trapping is implemented as part
- * secure software and hence need not be implemented here.
- */
-static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
-{
-
- struct omap4_l3 *l3 = _l3;
- int inttype, i, k;
- int err_src = 0;
- u32 std_err_main, err_reg, clear, masterid;
- void __iomem *base, *l3_targ_base;
- char *target_name, *master_name = "UN IDENTIFIED";
-
- /* Get the Type of interrupt */
- inttype = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
-
- for (i = 0; i < L3_MODULES; i++) {
- /*
- * Read the regerr register of the clock domain
- * to determine the source
- */
- base = l3->l3_base[i];
- err_reg = __raw_readl(base + l3_flagmux[i] +
- + L3_FLAGMUX_REGERR0 + (inttype << 3));
-
- /* Get the corresponding error and analyse */
- if (err_reg) {
- /* Identify the source from control status register */
- err_src = __ffs(err_reg);
-
- /* Read the stderrlog_main_source from clk domain */
- l3_targ_base = base + *(l3_targ[i] + err_src);
- std_err_main = __raw_readl(l3_targ_base +
- L3_TARG_STDERRLOG_MAIN);
- masterid = __raw_readl(l3_targ_base +
- L3_TARG_STDERRLOG_MSTADDR);
-
- switch (std_err_main & CUSTOM_ERROR) {
- case STANDARD_ERROR:
- target_name =
- l3_targ_inst_name[i][err_src];
- WARN(true, "L3 standard error: TARGET:%s at address 0x%x\n",
- target_name,
- __raw_readl(l3_targ_base +
- L3_TARG_STDERRLOG_SLVOFSLSB));
- /* clear the std error log*/
- clear = std_err_main | CLEAR_STDERR_LOG;
- writel(clear, l3_targ_base +
- L3_TARG_STDERRLOG_MAIN);
- break;
-
- case CUSTOM_ERROR:
- target_name =
- l3_targ_inst_name[i][err_src];
- for (k = 0; k < NUM_OF_L3_MASTERS; k++) {
- if (masterid == l3_masters[k].id)
- master_name =
- l3_masters[k].name;
- }
- WARN(true, "L3 custom error: MASTER:%s TARGET:%s\n",
- master_name, target_name);
- /* clear the std error log*/
- clear = std_err_main | CLEAR_STDERR_LOG;
- writel(clear, l3_targ_base +
- L3_TARG_STDERRLOG_MAIN);
- break;
-
- default:
- /* Nothing to be handled here as of now */
- break;
- }
- /* Error found so break the for loop */
- break;
- }
- }
- return IRQ_HANDLED;
-}
-
-static int __devinit omap4_l3_probe(struct platform_device *pdev)
-{
- static struct omap4_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 0\n");
- ret = -ENODEV;
- goto err0;
- }
-
- l3->l3_base[0] = ioremap(res->start, resource_size(res));
- if (!l3->l3_base[0]) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err0;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!res) {
- dev_err(&pdev->dev, "couldn't find resource 1\n");
- ret = -ENODEV;
- goto err1;
- }
-
- l3->l3_base[1] = ioremap(res->start, resource_size(res));
- if (!l3->l3_base[1]) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err1;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- if (!res) {
- dev_err(&pdev->dev, "couldn't find resource 2\n");
- ret = -ENODEV;
- goto err2;
- }
-
- l3->l3_base[2] = ioremap(res->start, resource_size(res));
- if (!l3->l3_base[2]) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err2;
- }
-
- /*
- * Setup interrupt Handlers
- */
- l3->debug_irq = platform_get_irq(pdev, 0);
- ret = request_irq(l3->debug_irq,
- l3_interrupt_handler,
- IRQF_DISABLED, "l3-dbg-irq", l3);
- if (ret) {
- pr_crit("L3: request_irq failed to register for 0x%x\n",
- OMAP44XX_IRQ_L3_DBG);
- goto err3;
- }
-
- l3->app_irq = platform_get_irq(pdev, 1);
- ret = request_irq(l3->app_irq,
- l3_interrupt_handler,
- IRQF_DISABLED, "l3-app-irq", l3);
- if (ret) {
- pr_crit("L3: request_irq failed to register for 0x%x\n",
- OMAP44XX_IRQ_L3_APP);
- goto err4;
- }
-
- return 0;
-
-err4:
- free_irq(l3->debug_irq, l3);
-err3:
- iounmap(l3->l3_base[2]);
-err2:
- iounmap(l3->l3_base[1]);
-err1:
- iounmap(l3->l3_base[0]);
-err0:
- kfree(l3);
- return ret;
-}
-
-static int __devexit omap4_l3_remove(struct platform_device *pdev)
-{
- struct omap4_l3 *l3 = platform_get_drvdata(pdev);
-
- free_irq(l3->app_irq, l3);
- free_irq(l3->debug_irq, l3);
- iounmap(l3->l3_base[0]);
- iounmap(l3->l3_base[1]);
- iounmap(l3->l3_base[2]);
- kfree(l3);
-
- return 0;
-}
-
-#if defined(CONFIG_OF)
-static const struct of_device_id l3_noc_match[] = {
- {.compatible = "ti,omap4-l3-noc", },
- {},
-};
-MODULE_DEVICE_TABLE(of, l3_noc_match);
-#else
-#define l3_noc_match NULL
-#endif
-
-static struct platform_driver omap4_l3_driver = {
- .probe = omap4_l3_probe,
- .remove = __devexit_p(omap4_l3_remove),
- .driver = {
- .name = "omap_l3_noc",
- .owner = THIS_MODULE,
- .of_match_table = l3_noc_match,
- },
-};
-
-static int __init omap4_l3_init(void)
-{
- return platform_driver_register(&omap4_l3_driver);
-}
-postcore_initcall_sync(omap4_l3_init);
-
-static void __exit omap4_l3_exit(void)
-{
- platform_driver_unregister(&omap4_l3_driver);
-}
-module_exit(omap4_l3_exit);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.