diff options
Diffstat (limited to 'target/linux/ramips/patches-3.18/0005-MIPS-ralink-add-illegal-access-driver.patch')
-rw-r--r-- | target/linux/ramips/patches-3.18/0005-MIPS-ralink-add-illegal-access-driver.patch | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/target/linux/ramips/patches-3.18/0005-MIPS-ralink-add-illegal-access-driver.patch b/target/linux/ramips/patches-3.18/0005-MIPS-ralink-add-illegal-access-driver.patch deleted file mode 100644 index fa9cd21b03..0000000000 --- a/target/linux/ramips/patches-3.18/0005-MIPS-ralink-add-illegal-access-driver.patch +++ /dev/null @@ -1,115 +0,0 @@ -From 60999174904c731e55992a4087999bbd4e5f2051 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Thu, 16 May 2013 23:28:23 +0200 -Subject: [PATCH 05/57] MIPS: ralink: add illegal access driver - -these SoCs have a special irq that fires upon an illegal memmory access. - -Signed-off-by: John Crispin <blogic@openwrt.org> ---- - arch/mips/ralink/Makefile | 2 + - arch/mips/ralink/ill_acc.c | 87 ++++++++++++++++++++++++++++++++++++++++++++ - 2 files changed, 89 insertions(+) - create mode 100644 arch/mips/ralink/ill_acc.c - ---- a/arch/mips/ralink/Makefile -+++ b/arch/mips/ralink/Makefile -@@ -10,6 +10,8 @@ obj-y := prom.o of.o reset.o clk.o irq.o - - obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o - -+obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o -+ - obj-$(CONFIG_SOC_RT288X) += rt288x.o - obj-$(CONFIG_SOC_RT305X) += rt305x.o - obj-$(CONFIG_SOC_RT3883) += rt3883.o ---- /dev/null -+++ b/arch/mips/ralink/ill_acc.c -@@ -0,0 +1,87 @@ -+/* -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License version 2 as published -+ * by the Free Software Foundation. -+ * -+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org> -+ */ -+ -+#include <linux/interrupt.h> -+#include <linux/of_platform.h> -+#include <linux/of_irq.h> -+ -+#include <asm/mach-ralink/ralink_regs.h> -+ -+#define REG_ILL_ACC_ADDR 0x10 -+#define REG_ILL_ACC_TYPE 0x14 -+ -+#define ILL_INT_STATUS BIT(31) -+#define ILL_ACC_WRITE BIT(30) -+#define ILL_ACC_LEN_M 0xff -+#define ILL_ACC_OFF_M 0xf -+#define ILL_ACC_OFF_S 16 -+#define ILL_ACC_ID_M 0x7 -+#define ILL_ACC_ID_S 8 -+ -+#define DRV_NAME "ill_acc" -+ -+static const char *ill_acc_ids[] = { -+ "cpu", "dma", "ppe", "pdma rx","pdma tx", "pci/e", "wmac", "usb", -+}; -+ -+static irqreturn_t ill_acc_irq_handler(int irq, void *_priv) -+{ -+ struct device *dev = (struct device *) _priv; -+ u32 addr = rt_memc_r32(REG_ILL_ACC_ADDR); -+ u32 type = rt_memc_r32(REG_ILL_ACC_TYPE); -+ -+ dev_err(dev, "illegal %s access from %s - addr:0x%08x offset:%d len:%d\n", -+ (type & ILL_ACC_WRITE) ? ("write") : ("read"), -+ ill_acc_ids[(type >> ILL_ACC_ID_S) & ILL_ACC_ID_M], -+ addr, (type >> ILL_ACC_OFF_S) & ILL_ACC_OFF_M, -+ type & ILL_ACC_LEN_M); -+ -+ rt_memc_w32(REG_ILL_ACC_TYPE, REG_ILL_ACC_TYPE); -+ -+ return IRQ_HANDLED; -+} -+ -+static int __init ill_acc_of_setup(void) -+{ -+ struct platform_device *pdev; -+ struct device_node *np; -+ int irq; -+ -+ /* somehow this driver breaks on RT5350 */ -+ if (of_machine_is_compatible("ralink,rt5350-soc")) -+ return -EINVAL; -+ -+ np = of_find_compatible_node(NULL, NULL, "ralink,rt3050-memc"); -+ if (!np) -+ return -EINVAL; -+ -+ pdev = of_find_device_by_node(np); -+ if (!pdev) { -+ pr_err("%s: failed to lookup pdev\n", np->name); -+ return -EINVAL; -+ } -+ -+ irq = irq_of_parse_and_map(np, 0); -+ if (!irq) { -+ dev_err(&pdev->dev, "failed to get irq\n"); -+ return -EINVAL; -+ } -+ -+ if (request_irq(irq, ill_acc_irq_handler, 0, "ill_acc", &pdev->dev)) { -+ dev_err(&pdev->dev, "failed to request irq\n"); -+ return -EINVAL; -+ } -+ -+ rt_memc_w32(ILL_INT_STATUS, REG_ILL_ACC_TYPE); -+ -+ dev_info(&pdev->dev, "irq registered\n"); -+ -+ return 0; -+} -+ -+arch_initcall(ill_acc_of_setup); |