Add support for EFI capsule updates via U-Boot's DFU. This flashes the boot partition with the new image provided in the capsule.
Signed-off-by: Kaustabh Chakraborty <[email protected]> --- board/samsung/exynos-mobile/exynos-mobile.c | 24 ++++++++++++++++++++++++ configs/exynos-mobile_defconfig | 6 ++++++ 2 files changed, 30 insertions(+) diff --git a/board/samsung/exynos-mobile/exynos-mobile.c b/board/samsung/exynos-mobile/exynos-mobile.c index c5e1b186ae3..6b2b1523663 100644 --- a/board/samsung/exynos-mobile/exynos-mobile.c +++ b/board/samsung/exynos-mobile/exynos-mobile.c @@ -10,6 +10,8 @@ #include <bootflow.h> #include <ctype.h> #include <dm/ofnode.h> +#include <efi.h> +#include <efi_loader.h> #include <env.h> #include <errno.h> #include <init.h> @@ -24,6 +26,19 @@ DECLARE_GLOBAL_DATA_PTR; #define lmb_alloc(size, addr) \ lmb_alloc_mem(LMB_MEM_ALLOC_ANY, SZ_2M, addr, size, LMB_NONE) +struct efi_fw_image fw_images[] = { + { + .fw_name = u"UBOOT_BOOT_PARTITION", + .image_index = 1, + }, +}; + +struct efi_capsule_update_info update_info = { + .dfu_string = NULL, + .images = fw_images, + .num_images = ARRAY_SIZE(fw_images), +}; + /* * The memory mapping includes all DRAM banks, along with the * peripheral block, and a sentinel at the end. This is filled in @@ -191,6 +206,7 @@ static int exynos_blk_env_setup(void) struct blk_desc *blk_desc; struct disk_partition info = {0}; unsigned long largest_part_start = 0, largest_part_size = 0; + static char dfu_string[32]; int i; blk_ifname = "mmc"; @@ -204,6 +220,14 @@ static int exynos_blk_env_setup(void) if (part_get_info(blk_desc, i, &info)) continue; + if (!update_info.dfu_string && + !strncasecmp(info.name, "boot", strlen("boot"))) { + snprintf(dfu_string, sizeof(dfu_string), + "mmc %d=u-boot.bin part %d %d", blk_dev, + blk_dev, i); + update_info.dfu_string = dfu_string; + } + if (info.start > largest_part_size) { largest_part_start = info.start; largest_part_size = info.size; diff --git a/configs/exynos-mobile_defconfig b/configs/exynos-mobile_defconfig index cee468d9c24..9a4b6a52362 100644 --- a/configs/exynos-mobile_defconfig +++ b/configs/exynos-mobile_defconfig @@ -11,6 +11,10 @@ CONFIG_SYS_BOOTM_LEN=0x2000000 CONFIG_SYS_LOAD_ADDR=0x80000000 CONFIG_ARMV8_CNTFRQ_BROKEN=y # CONFIG_PSCI_RESET is not set +CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y +CONFIG_EFI_CAPSULE_ON_DISK=y +CONFIG_EFI_CAPSULE_ON_DISK_EARLY=y +CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y CONFIG_BUTTON_CMD=y CONFIG_USE_PREBOOT=y CONFIG_SAVE_PREV_BL_FDT_ADDR=y @@ -31,6 +35,8 @@ CONFIG_BLKMAP=y CONFIG_BUTTON=y CONFIG_BUTTON_REMAP_PHONE_KEYS=y CONFIG_CLK_EXYNOS7870=y +CONFIG_DFU_MMC=y +CONFIG_SYS_DFU_DATA_BUF_SIZE=0x200000 CONFIG_USB_FUNCTION_FASTBOOT=y CONFIG_FASTBOOT_BUF_ADDR=0xdead0000 CONFIG_FASTBOOT_FLASH=y -- 2.52.0
