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| author | Rafał Miłecki <zajec5@gmail.com> | 2016-04-08 20:36:57 +0000 |
|---|---|---|
| committer | Rafał Miłecki <zajec5@gmail.com> | 2016-04-08 20:36:57 +0000 |
| commit | 51d887ba007e56f56f64a4495fc393ae87c7dc97 (patch) | |
| tree | 5f413bf462875fea2c88be88b9e606bef27b22b1 | |
| parent | 83cfb69b21c9961dd67b934bafa824bf7bc6d4e8 (diff) | |
| download | mtk-20170518-51d887ba007e56f56f64a4495fc393ae87c7dc97.zip mtk-20170518-51d887ba007e56f56f64a4495fc393ae87c7dc97.tar.gz mtk-20170518-51d887ba007e56f56f64a4495fc393ae87c7dc97.tar.bz2 | |
Revert "bcm53xx: revert patch removing imprecise abort workaround"
This reverts commit r48961. It didn't fix PCIe host driver issue as
there are more aborts triggered by it.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 49120
| -rw-r--r-- | target/linux/bcm53xx/patches-4.4/301-Revert-ARM-BCM5301X-remove-workaround-imprecise-abor.patch | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/target/linux/bcm53xx/patches-4.4/301-Revert-ARM-BCM5301X-remove-workaround-imprecise-abor.patch b/target/linux/bcm53xx/patches-4.4/301-Revert-ARM-BCM5301X-remove-workaround-imprecise-abor.patch deleted file mode 100644 index 907c581..0000000 --- a/target/linux/bcm53xx/patches-4.4/301-Revert-ARM-BCM5301X-remove-workaround-imprecise-abor.patch +++ /dev/null @@ -1,66 +0,0 @@ -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> -Date: Tue, 8 Mar 2016 09:03:21 +0100 -Subject: [PATCH] Revert "ARM: BCM5301X: remove workaround imprecise abort - fault handler" -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -This reverts commit 937b12306ea79044c86f2e69b3061c7279245825. - -It seems imprecise external abort (0x1406) can be still happen on -BCM4709 during PCI initialization. - -Signed-off-by: Rafał Miłecki <zajec5@gmail.com> ---- - ---- a/arch/arm/mach-bcm/bcm_5301x.c -+++ b/arch/arm/mach-bcm/bcm_5301x.c -@@ -9,6 +9,40 @@ - #include <asm/hardware/cache-l2x0.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 = { - "brcm,bcm4708", -@@ -18,5 +52,6 @@ static const char *const bcm5301x_dt_com - DT_MACHINE_START(BCM5301X, "BCM5301X") - .l2c_aux_val = 0, - .l2c_aux_mask = ~0, -+ .init_early = bcm5301x_init_early, - .dt_compat = bcm5301x_dt_compat, - MACHINE_END |