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ARM: BCM5301X: remove workaround imprecise abort fault handler

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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.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Lucas Stach 2015-10-15 12:32:22 +02:00 committed by Florian Fainelli
parent 8005c49d9a
commit 937b12306e
1 changed files with 0 additions and 35 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

35
arch/arm/mach-bcm/bcm_5301x.c
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@ -9,40 +9,6 @@
#include <asm/hardware/cache-l2x0.h> #include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <asm/siginfo.h>
#include <asm/signal.h>
static bool first_fault = true;
static int bcm5301x_abort_handler(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
if ((fsr == 0x1406 || fsr == 0x1c06) && first_fault) {
first_fault = false;
/*
* These faults with codes 0x1406 (BCM4709) or 0x1c06 happens
* for no good reason, possibly left over from the CFE boot
* loader.
*/
pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
addr, fsr);
/* Returning non-zero causes fault display and panic */
return 0;
}
/* Others should cause a fault */
return 1;
}
static void __init bcm5301x_init_early(void)
{
/* Install our hook */
hook_fault_code(16 + 6, bcm5301x_abort_handler, SIGBUS, BUS_OBJERR,
"imprecise external abort");
}
static const char *const bcm5301x_dt_compat[] __initconst = { static const char *const bcm5301x_dt_compat[] __initconst = {
"brcm,bcm4708", "brcm,bcm4708",
@ -52,6 +18,5 @@ static const char *const bcm5301x_dt_compat[] __initconst = {
DT_MACHINE_START(BCM5301X, "BCM5301X") DT_MACHINE_START(BCM5301X, "BCM5301X")
.l2c_aux_val = 0, .l2c_aux_val = 0,
.l2c_aux_mask = ~0, .l2c_aux_mask = ~0,
.init_early = bcm5301x_init_early,
.dt_compat = bcm5301x_dt_compat, .dt_compat = bcm5301x_dt_compat,
MACHINE_END MACHINE_END