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CSS: Extract primary cpu id using the correct bit width 

This patch fixes the incorrect bit width used to extract the primary
cpu id from `ap_data` exported by scp at SCP_BOOT_CFG_ADDR in
platform_is_primary_cpu().

Change-Id: I14abb361685f31164ecce0755fc1a145903b27aa
This commit is contained in:
Soby Mathew 2015-05-26 16:58:54 +01:00
parent c163ec455b
commit 19af6fceaf
2 changed files with 2 additions and 2 deletions
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2
include/plat/arm/css/common/css_def.h
View File

@ -69,7 +69,7 @@
/* SCP <=> AP boot configuration */
#define SCP_BOOT_CFG_ADDR 0x04000080
#define PRIMARY_CPU_SHIFT 8
#define PRIMARY_CPU_MASK 0xf
#define PRIMARY_CPU_BIT_WIDTH 4
#define CSS_MAP_DEVICE MAP_REGION_FLAT( \

2
plat/arm/css/common/aarch64/css_helpers.S
View File

@ -115,7 +115,7 @@ func platform_is_primary_cpu
bl platform_get_core_pos
ldr x1, =SCP_BOOT_CFG_ADDR
ldr x1, [x1]
ubfx x1, x1, #PRIMARY_CPU_SHIFT, #PRIMARY_CPU_MASK
ubfx x1, x1, #PRIMARY_CPU_SHIFT, #PRIMARY_CPU_BIT_WIDTH
cmp x0, x1
cset x0, eq
ret x9