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Provide ability to integrate with QComm SBLs 

Ipq8064 SBLs initialize the hardware to prepare it to run an arbitrary
user provided bootloader. The only bootloader requirements imposed by
the SBLs are that it is concatenated with the SBL chunks in the
bootprm AND it uses MBN encapsulation (mostly to specify the size and
load address).

This patch adds configuration options to specify the location of the
SBL blobs and to require MBN encapsulation of the bootblock.

BRANCH=none
BUG=chrome-os-partner:27784
TEST=manual

  - the below demonstrates added encapsulation, no code run attempts
    have been made yet:

    $ FEATURES=noclean emerge-storm coreboot
    $ cd /build/storm/tmp/portage/sys-boot/coreboot-9999/work/coreboot-9999
    $ \od -t x4 build/cbfs/fallback/bootblock.bin | head -3
    0000000 00000005 00000003 00000000 2a010000
    0000020 00000be0 00000be0 2a010be0 00000000
    0000040 2a010be0 00000000 e32bf0df e59f0030

Original-Change-Id: Iae30ad08059e2b35c434ac25a410ac2017752957
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/193511
(cherry picked from commit bf16ea915c723ab124d817e3b0d950282e3cf1c1)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I53c71d382ec1d826f530d7afb545f64ec4eaf96b
Reviewed-on: http://review.coreboot.org/7261
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Vadim Bendebury 2014-04-07 15:26:39 -07:00 committed by Marc Jones
parent 25a282dabc
commit b1709bd0b2
2 changed files with 28 additions and 0 deletions
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18
src/soc/qualcomm/ipq806x/Kconfig
View File

@ -19,4 +19,22 @@ config CBFS_ROM_OFFSET
hex "offset of CBFS data in ROM"
default 0x18080
config MBN_ENCAPSULATION
depends on USE_BLOBS
bool "bootblock encapsulation for ipq8064"
default y
config SBL_BLOB
depends on USE_BLOBS
string "file name of the Qualcomm SBL blob"
default "3rdparty/cpu/qualcomm/ipq8064/sbls.bin"
help
The path and filename of the binary blob containing
ipq806x early initialization code, as supplied by the
vendor.
config BOOTBLOCK_BASE
hex "64K bytes left for TZBSP"
default 0x2a010000
endif

10
src/soc/qualcomm/ipq806x/Makefile.inc
View File

@ -6,3 +6,13 @@ romstage-y += timer.c
ramstage-y += cbfs.c
ramstage-y += timer.c
ifeq ($(CONFIG_MBN_ENCAPSULATION),y)
$(objcbfs)/%.bin: $(objcbfs)/%.elf
@printf " OBJCOPY $(subst $(obj)/,,$(@))\n"
$(OBJCOPY_bootblock) -O binary $< $@.prembn
@printf " ADD MBN $(subst $(obj)/,,$(@))\n"
./util/ipqheader/ipqheader.py $(CONFIG_BOOTBLOCK_BASE) $@.prembn $@.tmp
@mv $@.tmp $@
endif