MIPS: BMIPS: Fix missing cbr address

Fix NULL pointer access in BMIPS3300 RAC flush.

Fixes: 738a3f7 ("MIPS: BMIPS: Add early CPU initialization code")
Signed-off-by: Jaedon Shin <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Cc: Kevin Cernekee <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # 4.7+
Patchwork: https://patchwork.linux-mips.org/patch/16423/
Signed-off-by: James Hogan <[email protected]>

Author: jaedon

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);