diff options
Diffstat (limited to 'plat/juno/aarch64/bl1_plat_helpers.S')
| -rw-r--r-- | plat/juno/aarch64/bl1_plat_helpers.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/plat/juno/aarch64/bl1_plat_helpers.S b/plat/juno/aarch64/bl1_plat_helpers.S index 785aa15..3054eab 100644 --- a/plat/juno/aarch64/bl1_plat_helpers.S +++ b/plat/juno/aarch64/bl1_plat_helpers.S @@ -32,10 +32,27 @@ #include <asm_macros.S> #include "../juno_def.h" + .globl platform_is_primary_cpu .globl platform_get_entrypoint .globl platform_cold_boot_init .globl plat_secondary_cold_boot_setup + /* ----------------------------------------------------- + * unsigned int platform_is_primary_cpu (unsigned int mpid); + * + * Given the mpidr say whether this cpu is the primary + * cpu (applicable ony after a cold boot) + * ----------------------------------------------------- + */ +func platform_is_primary_cpu + mov x9, x30 + bl platform_get_core_pos + ldr x1, =SCP_BOOT_CFG_ADDR + ldr x1, [x1] + ubfx x1, x1, #PRIMARY_CPU_SHIFT, #PRIMARY_CPU_MASK + cmp x0, x1 + cset x0, eq + ret x9 /* ----------------------------------------------------- * void plat_secondary_cold_boot_setup (void); |