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authorAndrey Petrov <andrey.petrov@intel.com>2016-02-12 15:12:43 -0800
committerMartin Roth <martinroth@google.com>2016-03-08 13:50:11 +0100
commit5672dcd58c0ae7f7a0d14af0a88ff9c534e0936a (patch)
tree1cb4ca13696f2f55b1357d0d5ef024a194253471 /src/soc/intel/apollolake/Kconfig
parentfb22ff4c03091c0b84a715df1320cfe74bcea665 (diff)
downloadcoreboot-5672dcd58c0ae7f7a0d14af0a88ff9c534e0936a.tar.xz
soc/intel/apollolake: Add support for memory-mapped boot media
On Apollo Lake SPI flash is memory mapped. The mapping is different to previous platforms. Only "BIOS" region is mapped in contrast to whole flash. Also, the 128 KiB right below 4 GiB are being decoded by readonly SRAM. Fail accesses to those regions, rather than returning false data. Change-Id: Iac3fa74cd221a5a46ceb34c2a79470290bcc2d84 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13706 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/apollolake/Kconfig')
-rw-r--r--src/soc/intel/apollolake/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig
index c32b80f38f..2f6101582f 100644
--- a/src/soc/intel/apollolake/Kconfig
+++ b/src/soc/intel/apollolake/Kconfig
@@ -85,4 +85,9 @@ config C_ENV_BOOTBLOCK_SIZE
hex
default 0x8000
+# This SoC does not map SPI flash like many previous SoC. Therefore we provide
+# a custom media driver that facilitates mapping
+config X86_TOP4G_BOOTMEDIA_MAP
+ bool
+ default n
endif