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authorArthur Heymans <arthur@aheymans.xyz>2022-03-30 23:04:35 +0200
committerArthur Heymans <arthur@aheymans.xyz>2022-05-15 18:49:13 +0000
commit7e0af339ee1e8c4aa3a4ddd65e02070dea5debac (patch)
treed0dbedd8ab7be25be0dacd67df920ec3ce0aa538 /src/soc/intel/apollolake
parent4cd8f6192414acf958568ec51d5caf290048de91 (diff)
soc/intel/apl: Drop cbfs bootblock
The bootblock is loaded from IFWI so there is no need to have it in cbfs. Also remove the FIT handling as that is also handled by the IFWI. TESTED: up/squared still boots Change-Id: I8e70e080765dd7306074a8cf71c8795b8fbbb8a2 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63225 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/apollolake')
-rw-r--r--src/soc/intel/apollolake/Kconfig5
-rw-r--r--src/soc/intel/apollolake/Makefile.inc10
2 files changed, 14 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig
index a6ff1d54e7..d23f31c20b 100644
--- a/src/soc/intel/apollolake/Kconfig
+++ b/src/soc/intel/apollolake/Kconfig
@@ -28,7 +28,6 @@ config CPU_SPECIFIC_OPTIONS
select BOOT_DEVICE_SUPPORTS_WRITES
# CPU specific options
select CPU_INTEL_COMMON
- select CPU_INTEL_FIRMWARE_INTERFACE_TABLE
select CPU_SUPPORTS_PM_TIMER_EMULATION
select PCR_COMMON_IOSF_1_0
select SSE2
@@ -414,4 +413,8 @@ config INTEL_GMA_BCLM_OFFSET
config INTEL_GMA_BCLM_WIDTH
default 32
+config BOOTBLOCK_IN_CBFS
+ bool
+ default n
+
endif
diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc
index 29ef9e5808..a6d42247e2 100644
--- a/src/soc/intel/apollolake/Makefile.inc
+++ b/src/soc/intel/apollolake/Makefile.inc
@@ -146,6 +146,16 @@ $(call add_intermediate, write_ifwi, $(objcbfs)/bootblock.bin $(IFWITOOL))
$(CBFSTOOL) $< write -r $(CONFIG_IFWI_FMAP_NAME) -f $(objcbfs)/ifwi.bin.tmp --fill-upward
endif
+# When booting APL the IBBL loader places the microcode updates embedded
+# in the IFWI image and a matching FIT table in SRAM. After copying the
+# bootblock to SRAM, it updates the FIT pointer at 0xffffffc0 to point
+# to that table. Before releasing the x86 cores from reset, the regular FIT
+# mechanism does the updates. So coreboot does not need to generate a FIT
+# table + pointer, but reserving the pointer is still needed. Otherwise the
+# IBBL loader thrashes code there. So include fit.c so that the linker
+# reserves that pointer.
+bootblock-y += ../../../cpu/intel/fit/fit.c
+
# DSP firmware settings files.
ifeq ($(CONFIG_SOC_INTEL_GEMINILAKE),y)
NHLT_BLOB_PATH = 3rdparty/blobs/soc/intel/glk/nhlt-blobs