Hi Patrice, On 02/02/2018 12:22 AM, Patrice CHOTARD wrote: > +Christophe Priouzeau who is the requester/developper of this feature > > > On 01/31/2018 07:22 PM, Vikas Manocha wrote: >> Hi Patrice, >> >> On 01/31/2018 08:08 AM, patrice.chot...@st.com wrote: >>> From: Patrice Chotard <patrice.chot...@st.com> >>> >>> This series allows to get the cpu id of STM32 SoCs and to set >>> the environment variable "soc_name" with the corresponding SoC name. >>> >>> This will be useful in some development environment to retrieve files >>> correspondig to SoC family. >> >> can you provide some example ? We have the device tree compatible string to >> distinguish board & soc. > > We will add STM32 SoCs support in buildroot environment > Our objective is to propose a flexible solution to boot linux > kernel from sdcard. > > As for STM32F4, STM32F7 and STM32H7 linux defconfig is slightly > different (specific CONFIG_DRAM_BASE and CONFIG_DRAM_SIZE) we can't use > the same zImage for all these SoCs. > > To simplify, we will embed all dtb/zImage in the sdcard and using the > soc_name environment variable to select the correct zImage.
soc name is already part of configuration (SYS_SOC). It would be simpler and less expensive (for both cpu & memory) to use it. In this patchset, 56 Bytes(currently, which will increase with more SOCs support) of lookup table are becoming part of text apart from the additional code. Cheers, Vikas > > Patrice > > >> >> Cheers, >> Vikas >> >>> >>> Patrice Chotard (8): >>> mach-stm32: Add get_cpu_id support >>> mach-stm32: Move BOARD_LATE_INIT flag to mach-stm32 Kconfig >>> board: stm32f429-discovery: Add set_env_soc_name() in >>> board_late_init() >>> board: stm32h743-evaluation: Add set_env_soc_name() in >>> board_late_init() >>> board: stm32f743-discovery: Add set_env_soc_name() in >>> board_late_init() >>> board: stm32f469-discovery: Add set_env_soc_name() in >>> board_late_init() >>> board: stm32f469-discovery: Add set_env_soc_name() in >>> board_late_init() >>> board: stm32f429-evaluation: Add set_env_soc_name() in >>> board_late_init() >>> >>> arch/arm/include/asm/arch-stm32f4/stm32.h | 2 + >>> arch/arm/include/asm/arch-stm32f7/stm32.h | 2 + >>> arch/arm/include/asm/arch-stm32h7/stm32.h | 4 ++ >>> arch/arm/mach-stm32/Kconfig | 3 ++ >>> arch/arm/mach-stm32/soc.c | 46 >>> ++++++++++++++++++++++ >>> board/st/stm32f429-discovery/stm32f429-discovery.c | 7 ++++ >>> .../st/stm32f429-evaluation/stm32f429-evaluation.c | 7 ++++ >>> board/st/stm32f469-discovery/stm32f469-discovery.c | 7 ++++ >>> board/st/stm32f746-disco/stm32f746-disco.c | 2 + >>> board/st/stm32h743-disco/stm32h743-disco.c | 4 ++ >>> board/st/stm32h743-eval/stm32h743-eval.c | 4 ++ >>> include/configs/stm32f746-disco.h | 1 - >>> include/configs/stm32h743-disco.h | 1 - >>> include/configs/stm32h743-eval.h | 1 - >>> 14 files changed, 88 insertions(+), 3 deletions(-) >> > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot