From 944d00b28ccd10985ee93a27139d4810fbe7955e Mon Sep 17 00:00:00 2001 From: Zheng Bao Date: Mon, 17 Aug 2020 11:11:48 +0800 Subject: soc/amd/picasso: Use readelf to find bootblock size and location The Picasso build describes the DRAM region where the PSP places our bootblock. Rather than relying on Kconfig values, make the build more robust by using the actual size and target base address from the boot block's ELF file. Sample output of "readelf -l bootblock.elf" is: ------------------ Elf file type is EXEC (Executable file) Entry point 0x203fff0 There is 1 program header, starting at offset 52 Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align LOAD 0x001000 0x02030000 0x02030000 0x10000 0x10000 RWE 0x1000 Section to Segment mapping: Segment Sections... 00 .text .data .bss .reset ------------------ We can extract the information from here. BUG=b:154957411 TEST=Build & boot on mandolin Change-Id: I5a26047726f897c57325387cb304fddbc73f6504 Signed-off-by: Zheng Bao Reviewed-on: https://review.coreboot.org/c/coreboot/+/46092 Reviewed-by: Felix Held Tested-by: build bot (Jenkins) --- src/soc/amd/picasso/Makefile.inc | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'src/soc/amd/picasso') diff --git a/src/soc/amd/picasso/Makefile.inc b/src/soc/amd/picasso/Makefile.inc index 9757160d19..514b313a6d 100644 --- a/src/soc/amd/picasso/Makefile.inc +++ b/src/soc/amd/picasso/Makefile.inc @@ -209,12 +209,8 @@ PSP_APOB_BASE=$(CONFIG_PSP_APOB_DRAM_ADDRESS) # type = 0x62 PSP_BIOSBIN_FILE=$(obj)/amd_biospsp.img PSP_ELF_FILE=$(objcbfs)/bootblock.elf -# TODO(b/154957411): Refactor amdfwtool to extract the address and size from -# the elf file. -PSP_BIOSBIN_SIZE=$(CONFIG_C_ENV_BOOTBLOCK_SIZE) -# This address must match the BOOTBLOCK logic in arch/x86/memlayout.ld. -PSP_BIOSBIN_DEST=$(shell printf "%x" $(call int-subtract, $(call int-add, $(CONFIG_X86_RESET_VECTOR) 0x10) $(PSP_BIOSBIN_SIZE))) - +PSP_BIOSBIN_SIZE=$(shell $(READELF_bootblock) -l $(PSP_ELF_FILE) | grep LOAD | awk '{print $$5}') +PSP_BIOSBIN_DEST=$(shell $(READELF_bootblock) -l $(PSP_ELF_FILE) | grep LOAD | awk '{print $$3}') # type = 0x63 - construct APOB NV base/size from flash map # The flashmap section used for this is expected to be named RW_MRC_CACHE APOB_NV_SIZE=$(shell grep "FMAP_SECTION_RW_MRC_CACHE_SIZE" $(obj)/fmap_config.h | awk '{print $$(NF)}') -- cgit v1.2.3