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From 937b12306ea79044c86f2e69b3061c7279245825 Mon Sep 17 00:00:00 2001
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From: Lucas Stach <l.stach@pengutronix.de>
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Date: Thu, 15 Oct 2015 12:32:22 +0200
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Subject: [PATCH] ARM: BCM5301X: remove workaround imprecise abort fault
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handler
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This is not needed anymore. Handling a potentially pending imprecise external
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abort left behind by the bootloader is now done in a slightly safer way inside
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the common ARM startup code.
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Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
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Tested-by: Tyler Baker <tyler.baker@linaro.org>
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Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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---
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arch/arm/mach-bcm/bcm_5301x.c | 35 -----------------------------------
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1 file changed, 35 deletions(-)
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--- a/arch/arm/mach-bcm/bcm_5301x.c
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+++ b/arch/arm/mach-bcm/bcm_5301x.c
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@@ -9,40 +9,6 @@
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/mach/arch.h>
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-#include <asm/siginfo.h>
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-#include <asm/signal.h>
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-
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-
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-static bool first_fault = true;
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-
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-static int bcm5301x_abort_handler(unsigned long addr, unsigned int fsr,
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- struct pt_regs *regs)
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-{
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- if ((fsr == 0x1406 || fsr == 0x1c06) && first_fault) {
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- first_fault = false;
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-
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- /*
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- * These faults with codes 0x1406 (BCM4709) or 0x1c06 happens
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- * for no good reason, possibly left over from the CFE boot
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- * loader.
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- */
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- pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
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- addr, fsr);
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-
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- /* Returning non-zero causes fault display and panic */
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- return 0;
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- }
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-
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- /* Others should cause a fault */
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- return 1;
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-}
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-
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-static void __init bcm5301x_init_early(void)
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-{
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- /* Install our hook */
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- hook_fault_code(16 + 6, bcm5301x_abort_handler, SIGBUS, BUS_OBJERR,
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- "imprecise external abort");
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-}
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static const char *const bcm5301x_dt_compat[] __initconst = {
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"brcm,bcm4708",
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@@ -52,6 +18,5 @@ static const char *const bcm5301x_dt_com
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DT_MACHINE_START(BCM5301X, "BCM5301X")
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.l2c_aux_val = 0,
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.l2c_aux_mask = ~0,
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- .init_early = bcm5301x_init_early,
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.dt_compat = bcm5301x_dt_compat,
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MACHINE_END
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