From: Lucas Stach <l.stach@pengutronix.de>
Date: Thu, 15 Oct 2015 10:32:21 +0000 (+0200)
Subject: ARM: OMAP2+: remove custom abort handler for t410
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9b1b61cd8e31d9beba871333d7a798b3adb89288;p=linux-beck.git

ARM: OMAP2+: remove custom abort handler for t410

This is not needed anymore. Handling a potentially pending imprecise external
abort left behind by the bootloader is now done in a slightly safer way inside
the common ARM startup code.

With the recent changes to abort handling, this issue got fixed by 57df53808534
("ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init").

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
[tony@atomide.com: updated comments to describe what fixed the issue]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 1dfe34654c43..58144779dec4 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -24,9 +24,6 @@
 #include <linux/platform_data/iommu-omap.h>
 #include <linux/platform_data/wkup_m3.h>
 
-#include <asm/siginfo.h>
-#include <asm/signal.h>
-
 #include "common.h"
 #include "common-board-devices.h"
 #include "dss-common.h"
@@ -385,29 +382,6 @@ static void __init omap3_pandora_legacy_init(void)
 }
 #endif /* CONFIG_ARCH_OMAP3 */
 
-#ifdef CONFIG_SOC_TI81XX
-static int fault_fixed_up;
-
-static int t410_abort_handler(unsigned long addr, unsigned int fsr,
-			      struct pt_regs *regs)
-{
-	if ((fsr == 0x406 || fsr == 0xc06) && !fault_fixed_up) {
-		pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
-			addr, fsr);
-		fault_fixed_up = 1;
-		return 0;
-	}
-
-	return 1;
-}
-
-static void __init t410_abort_init(void)
-{
-	hook_fault_code(16 + 6, t410_abort_handler, SIGBUS, BUS_OBJERR,
-			"imprecise external abort");
-}
-#endif
-
 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 static struct iommu_platform_data omap4_iommu_pdata = {
 	.reset_name = "mmu_cache",
@@ -536,9 +510,6 @@ static struct pdata_init pdata_quirks[] __initdata = {
 	{ "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
 	{ "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
 #endif
-#ifdef CONFIG_SOC_TI81XX
-	{ "hp,t410", t410_abort_init, },
-#endif
 #ifdef CONFIG_SOC_OMAP5
 	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
 #endif