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authorRavi Sarawadi <ravishankar.sarawadi@intel.com>2016-08-10 11:33:56 -0700
committerFurquan Shaikh <furquan@google.com>2016-08-11 22:43:53 +0200
commit3a21d0f341104dbef041f1dde8541d6054eb04e6 (patch)
treea0b56ec69c4cc9913ffeb231933329a34079a46f /src/soc/intel/apollolake
parent105828d12a36fa0cbb1a5025891722f1c0546ae8 (diff)
soc/apollolake: enable access to RTC NVRAM
FSP unconditionally locks parts of the NVRAM in the RTC. This change will enable coreboot to update the locking policy and be able to unlock the region BUG=chrome-os-partner:55944 TEST=Check 'crossystem dev_boot_usb=1' Change-Id: I70fd2bafa6ff9eb9cdf284b9780e4b90dee0f4ce Signed-off-by: Ravi Sarawadi <ravishankar.sarawadi@intel.com> Reviewed-on: https://review.coreboot.org/16144 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Diffstat (limited to 'src/soc/intel/apollolake')
-rw-r--r--src/soc/intel/apollolake/chip.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index 345d7c4446..1b109d0c93 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -397,6 +397,9 @@ void platform_fsp_silicon_init_params_cb(struct FSPS_UPD *silupd)
/* Disable setting of EISS bit in FSP. */
silconfig->SpiEiss = 0;
+
+ /* Disable FSP from locking access to the RTC NVRAM */
+ silconfig->RtcLock = 0;
}
struct chip_operations soc_intel_apollolake_ops = {