On 1/19/26 09:38, Patrice CHOTARD wrote:
>
>
> On 1/18/26 11:48, Dario Binacchi wrote:
>> Following the commit 95b5a7de30f6 (“FWU: STM32MP1: Add support to read
>> boot index from backup register”), this patch enables reading the boot
>> index from backup registers on STM32MP2 platforms.
>>
>> Signed-off-by: Dario Binacchi <[email protected]>
>>
>> ---
>>
>> arch/arm/mach-stm32mp/include/mach/stm32.h | 4 ++++
>> board/st/stm32mp2/stm32mp2.c | 21 +++++++++++++++++++++
>> 2 files changed, 25 insertions(+)
>>
>> diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h
>> b/arch/arm/mach-stm32mp/include/mach/stm32.h
>> index 2bf50c755cbd..90f06a052d3f 100644
>> --- a/arch/arm/mach-stm32mp/include/mach/stm32.h
>> +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h
>> @@ -188,8 +188,12 @@ enum forced_boot_mode {
>> /* TAMP registers x = 0 to 127 : hardcoded description, waiting NVMEM node
>> in DT */
>> #define TAMP_BACKUP_REGISTER(x) (STM32_TAMP_BASE + 0x100 + 4 *
>> (x))
>>
>> +#define TAMP_FWU_BOOT_INFO_REG TAMP_BACKUP_REGISTER(48)
>> /* TAMP registers zone 3 RIF 1 (RW) at 96*/
>> #define TAMP_BOOT_CONTEXT TAMP_BACKUP_REGISTER(96)
>> +
>> +#define TAMP_FWU_BOOT_IDX_MASK GENMASK(3, 0)
>> +#define TAMP_FWU_BOOT_IDX_OFFSET 0
>> #endif /* defined(CONFIG_STM32MP23X) || defined(CONFIG_STM32MP25X) */
>>
>> /* offset used for BSEC driver: misc_read and misc_write */
>> diff --git a/board/st/stm32mp2/stm32mp2.c b/board/st/stm32mp2/stm32mp2.c
>> index 7bc7d2a608fd..43bc583378e6 100644
>> --- a/board/st/stm32mp2/stm32mp2.c
>> +++ b/board/st/stm32mp2/stm32mp2.c
>> @@ -188,3 +188,24 @@ void board_quiesce_devices(void)
>> {
>> led_boot_off();
>> }
>> +
>> +#if defined(CONFIG_FWU_MULTI_BANK_UPDATE)
>> +
>> +#include <fwu.h>
>> +
>> +/**
>> + * fwu_plat_get_bootidx() - Get the value of the boot index
>> + * @boot_idx: Boot index value
>> + *
>> + * Get the value of the bank(partition) from which the platform
>> + * has booted. This value is passed to U-Boot from the earlier
>> + * stage bootloader which loads and boots all the relevant
>> + * firmware images
>> + *
>> + */
>> +void fwu_plat_get_bootidx(uint *boot_idx)
>> +{
>> + *boot_idx = (readl(TAMP_FWU_BOOT_INFO_REG) >>
>> + TAMP_FWU_BOOT_IDX_OFFSET) & TAMP_FWU_BOOT_IDX_MASK;
>> +}
>> +#endif /* CONFIG_FWU_MULTI_BANK_UPDATE */
>
> Hi Dario
>
> Reviewed-by: Patrice Chotard <[email protected]>
>
> Thanks
> Patrice
>
Applied to u-boot-stm32/master
Thanks
Patrice
