diff options
| -rw-r--r-- | include/plat/arm/css/common/css_def.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/plat/arm/css/common/css_def.h b/include/plat/arm/css/common/css_def.h index 056c00df..12e75413 100644 --- a/include/plat/arm/css/common/css_def.h +++ b/include/plat/arm/css/common/css_def.h @@ -66,8 +66,17 @@ #define CSS_IRQ_TZC 80 #define CSS_IRQ_TZ_WDOG 86 -/* SCP <=> AP boot configuration */ -#define SCP_BOOT_CFG_ADDR 0x04000080 +/* + * SCP <=> AP boot configuration + * + * The SCP/AP boot configuration is a 32-bit word located at a known offset from + * the start of the Trusted SRAM. Part of this configuration is which CPU is the + * primary, according to the shift and mask definitions below. + * + * Note that the value stored at this address is only valid at boot time, before + * the BL3-0 image is transferred to SCP. + */ +#define SCP_BOOT_CFG_ADDR (ARM_TRUSTED_SRAM_BASE + 0x80) #define PRIMARY_CPU_SHIFT 8 #define PRIMARY_CPU_BIT_WIDTH 4 |