25 lines
1000 B
Diff
25 lines
1000 B
Diff
From: Matthias Schiffer <mschiffer@universe-factory.net>
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Date: Fri, 9 Jan 2015 09:27:39 +0100
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Subject: ar71xx: add flush reset register writes, should fix restart issues (#17839)
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Backport of r43777
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diff --git a/target/linux/ar71xx/patches-3.10/728-MIPS-ath79-fix-restart.patch b/target/linux/ar71xx/patches-3.10/728-MIPS-ath79-fix-restart.patch
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index 0027c59..612078c 100644
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--- a/target/linux/ar71xx/patches-3.10/728-MIPS-ath79-fix-restart.patch
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+++ b/target/linux/ar71xx/patches-3.10/728-MIPS-ath79-fix-restart.patch
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@@ -8,3 +8,13 @@
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ath79_device_reset_set(AR71XX_RESET_FULL_CHIP);
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for (;;)
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if (cpu_wait)
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+--- a/arch/mips/include/asm/mach-ath79/ath79.h
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++++ b/arch/mips/include/asm/mach-ath79/ath79.h
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+@@ -144,6 +144,7 @@ static inline u32 ath79_pll_rr(unsigned
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+ static inline void ath79_reset_wr(unsigned reg, u32 val)
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+ {
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+ __raw_writel(val, ath79_reset_base + reg);
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++ (void) __raw_readl(ath79_reset_base + reg); /* flush */
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+ }
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+
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+ static inline u32 ath79_reset_rr(unsigned reg)
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