From ea4b3afe1eac8f88bb453798a084fba47a1f155a Mon Sep 17 00:00:00 2001 From: Jaedon Shin Date: Fri, 16 Jun 2017 20:03:01 +0900 Subject: [PATCH] MIPS: BMIPS: Fix missing cbr address Fix NULL pointer access in BMIPS3300 RAC flush. Fixes: 738a3f79027b ("MIPS: BMIPS: Add early CPU initialization code") Signed-off-by: Jaedon Shin Reviewed-by: Florian Fainelli Cc: Kevin Cernekee Cc: linux-mips@linux-mips.org Cc: # 4.7+ Patchwork: https://patchwork.linux-mips.org/patch/16423/ Signed-off-by: James Hogan --- arch/mips/kernel/smp-bmips.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c index 406072e26752..87dcac2447c8 100644 --- a/arch/mips/kernel/smp-bmips.c +++ b/arch/mips/kernel/smp-bmips.c @@ -591,11 +591,11 @@ void __init bmips_cpu_setup(void) /* Flush and enable RAC */ cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG); - __raw_writel(cfg | 0x100, BMIPS_RAC_CONFIG); + __raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG); __raw_readl(cbr + BMIPS_RAC_CONFIG); cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG); - __raw_writel(cfg | 0xf, BMIPS_RAC_CONFIG); + __raw_writel(cfg | 0xf, cbr + BMIPS_RAC_CONFIG); __raw_readl(cbr + BMIPS_RAC_CONFIG); cfg = __raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE);