On 22/07/2026 09:41, Varadarajan Narayanan wrote:
> Update the SMEM with the boot device information got from the boot rom.
>
> Reviewed-by: Balaji Selvanathan <[email protected]>
> Reviewed-by: Simon Glass <[email protected]>
> Signed-off-by: Varadarajan Narayanan <[email protected]>
> ---
> arch/arm/mach-snapdragon/board_spl.c | 46
> ++++++++++++++++++++++++++++++++++++
> 1 file changed, 46 insertions(+)
>
> diff --git a/arch/arm/mach-snapdragon/board_spl.c
> b/arch/arm/mach-snapdragon/board_spl.c
> index 6ae59481ba9..69a32e5d8cf 100644
> --- a/arch/arm/mach-snapdragon/board_spl.c
> +++ b/arch/arm/mach-snapdragon/board_spl.c
> @@ -85,3 +85,49 @@ u32 spl_boot_device(void)
> pr_err("No boot device configured\n");
> return BOOT_DEVICE_NONE;
> }
> +
> +#if IS_ENABLED(CONFIG_SPL_SMEM)
> +/**
> + * qcom_spl_populate_smem() - Populate shared memory (SMEM) information.
> + * @ctx: Pointer to the global SPL context.
> + *
> + * This function initializes and populates various SMEM items with
> boot-related
> + * information, such as flash type, try-mode status, and ATF enable status.
ATF? what? where?
> + * Return: 0 on success, or a negative error code on failure.
> + */
> +static int qcom_spl_populate_smem(void *ctx)
> +{
> + int ret;
> + size_t size;
> + struct udevice *smem;
> + u32 *fltype;
> +
> + ret = uclass_get_device(UCLASS_SMEM, 0, &smem);
still not rebased on qcom-next
> + if (ret) {
> + pr_err("Failed to find SMEM node (%d)\n", ret);
> + return ret;
> + }
> +
> + size = sizeof(u32);
> + ret = smem_alloc(smem, -1, SMEM_BOOT_FLASH_TYPE, size);
> + if (ret) {
> + pr_err("Failed to alloc item: SMEM_BOOT_FLASH_TYPE (%d)\n",
> ret);
> + return ret;
> + }
> +
> + fltype = (u32 *)smem_get(smem, -1, SMEM_BOOT_FLASH_TYPE, &size);
> + if (!fltype) {
> + pr_err("Failed to get item: SMEM_BOOT_FLASH_TYPE\n");
> + return -ENOENT;
> + }
> +
> + if (IS_ENABLED(CONFIG_SPL_MMC)) {
> + *fltype = SMEM_BOOT_MMC_FLASH;
missing wmb() ?
> + return 0;
> + }
> +
> + pr_err("Boot medium not specified\n");
> +
> + return -ENOENT;
> +}
> +#endif /* IS_ENABLED(CONFIG_SPL_SMEM) */
>
--
// Casey (she/her)
