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ar71xx: add flush reset register writes, should fix restart issues (#17839)

Signed-off-by: Felix Fietkau <[email protected]>

SVN-Revision: 43777
Felix Fietkau 11 лет назад
Родитель
Сommit
fa3cb9fa5c
1 измененных файлов с 10 добавлено и 0 удалено
  1. 10 0
      target/linux/ar71xx/patches-3.14/728-MIPS-ath79-fix-restart.patch

+ 10 - 0
target/linux/ar71xx/patches-3.14/728-MIPS-ath79-fix-restart.patch

@@ -8,3 +8,13 @@
  	ath79_device_reset_set(AR71XX_RESET_FULL_CHIP);
  	ath79_device_reset_set(AR71XX_RESET_FULL_CHIP);
  	for (;;)
  	for (;;)
  		if (cpu_wait)
  		if (cpu_wait)
+--- a/arch/mips/include/asm/mach-ath79/ath79.h
++++ b/arch/mips/include/asm/mach-ath79/ath79.h
+@@ -144,6 +144,7 @@ static inline u32 ath79_pll_rr(unsigned 
+ static inline void ath79_reset_wr(unsigned reg, u32 val)
+ {
+ 	__raw_writel(val, ath79_reset_base + reg);
++	(void) __raw_readl(ath79_reset_base + reg); /* flush */
+ }
+ 
+ static inline u32 ath79_reset_rr(unsigned reg)