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author | Jonas Gorski <jogo@openwrt.org> | 2015-05-25 18:02:32 +0000 |
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committer | Jonas Gorski <jogo@openwrt.org> | 2015-05-25 18:02:32 +0000 |
commit | 8837cb42f0415295ec53ec04872bbba5dcb43255 (patch) | |
tree | 40586140eed2928ef5fbf246350036e0155be3dd | |
parent | 0d9df306c80771e0aa5b51faaf68658447c590dc (diff) | |
download | master-187ad058-8837cb42f0415295ec53ec04872bbba5dcb43255.tar.gz master-187ad058-8837cb42f0415295ec53ec04872bbba5dcb43255.tar.bz2 master-187ad058-8837cb42f0415295ec53ec04872bbba5dcb43255.zip |
ramips: fix hang on boot on rt305x
Fix an upstream regression on 3.18+ that causes rt305x based devices
to hang on boot.
Fixes #19715.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45747 3c298f89-4303-0410-b956-a3cf2f4a3e73
-rw-r--r-- | target/linux/ramips/patches-3.18/064-MIPS-ralink-fix-clearing-the-illegal-access-interrup.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.18/064-MIPS-ralink-fix-clearing-the-illegal-access-interrup.patch b/target/linux/ramips/patches-3.18/064-MIPS-ralink-fix-clearing-the-illegal-access-interrup.patch new file mode 100644 index 0000000000..8153272308 --- /dev/null +++ b/target/linux/ramips/patches-3.18/064-MIPS-ralink-fix-clearing-the-illegal-access-interrup.patch @@ -0,0 +1,31 @@ +From f5d9bea58b576b50cdc0d7a607646b0849ff79c4 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Mon, 25 May 2015 16:51:34 +0200 +Subject: [PATCH] MIPS: ralink: fix clearing the illegal access interrupt + +Due to a typo the illegal access interrupt is never cleared in by +the interupt handler, causing an effective deadlock on the first +illegal access. + +This was broken since the code was introduced in 5433acd81e87 ("MIPS: +ralink: add illegal access driver"), but only exposed when the Kconfig +symbol was added, thus enabling the code. + +Cc: <stable@vger.kernel.org> [3.18+] +Fixes: a7b7aad383c ("MIPS: ralink: add missing symbol for RALINK_ILL_ACC") +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/ralink/ill_acc.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/mips/ralink/ill_acc.c ++++ b/arch/mips/ralink/ill_acc.c +@@ -41,7 +41,7 @@ static irqreturn_t ill_acc_irq_handler(i + 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); ++ rt_memc_w32(ILL_INT_STATUS, REG_ILL_ACC_TYPE); + + return IRQ_HANDLED; + } |