diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2018-06-08 17:57:37 +0530 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2018-06-22 01:58:17 +0000 |
| commit | f699c14c03a78549b0e5ed32cf9714473127c618 (patch) | |
| tree | 681009836bbd6a92e49ffe3b9dc03145274ad38a /src/soc/intel/common/block/cpu | |
| parent | b775a62bb9fe07785b83767d58573937c5783bec (diff) | |
soc/intel/common/block/cpu: Add option to skip coreboot AP init
SoC users from IOTG team is looking forward for a solution to skip
coreboot AP initialization flow and make use of FSPS-UPD to
perform AP reset.
TEST=Assign use_fsp_mp_init=1 to ensure coreboot is not bringing APs
out of reset.
Change-Id: Ibc8cd411e802fb682436a933073922b2693ba994
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/26644
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/soc/intel/common/block/cpu')
| -rw-r--r-- | src/soc/intel/common/block/cpu/mp_init.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/cpu/mp_init.c b/src/soc/intel/common/block/cpu/mp_init.c index e264348055..fd0ac992b5 100644 --- a/src/soc/intel/common/block/cpu/mp_init.c +++ b/src/soc/intel/common/block/cpu/mp_init.c @@ -22,6 +22,7 @@ #include <cpu/x86/msr.h> #include <cpu/x86/mp.h> #include <cpu/intel/microcode.h> +#include <intelblocks/chip.h> #include <intelblocks/cpulib.h> #include <intelblocks/fast_spi.h> #include <intelblocks/mp_init.h> @@ -124,6 +125,9 @@ static void init_cpus(void *unused) struct device *dev = dev_find_path(NULL, DEVICE_PATH_CPU_CLUSTER); assert(dev != NULL); + if (chip_get_fsp_mp_init()) + return; + microcode_patch = intel_microcode_find(); intel_microcode_load_unlocked(microcode_patch); @@ -138,6 +142,9 @@ static void wrapper_x86_setup_mtrrs(void *unused) /* Ensure to re-program all MTRRs based on DRAM resource settings */ static void post_cpus_init(void *unused) { + if (chip_get_fsp_mp_init()) + return; + if (mp_run_on_all_cpus(&wrapper_x86_setup_mtrrs, NULL, 1000) < 0) printk(BIOS_ERR, "MTRR programming failure\n"); |