Add functions needed to support the UEFI capsule update feature on rockchip boards. Currently, the feature is being enabled on the RockPi4 boards with firmware images residing on GPT partitioned storage media.
Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org --- Changes since V2: * Use rockchip in the commit message summary instead of rockpi * Use num_image_type_guids instead of ROCKPI4_UPDATABLE_IMAGES macro * Move the board specific code out of this file into evb_rk3399.c
arch/arm/mach-rockchip/Kconfig | 1 + arch/arm/mach-rockchip/board.c | 152 +++++++++++++++++++++++++++++++++ 2 files changed, 153 insertions(+)
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index b46cea2f91..619899ff68 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -246,6 +246,7 @@ config ROCKCHIP_RK3399 select DM_PMIC select DM_REGULATOR_FIXED select BOARD_LATE_INIT + imply PARTITION_TYPE_GUID imply PRE_CONSOLE_BUFFER imply ROCKCHIP_COMMON_BOARD imply ROCKCHIP_SDRAM_COMMON diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c index cbe00d646c..0c806243e3 100644 --- a/arch/arm/mach-rockchip/board.c +++ b/arch/arm/mach-rockchip/board.c @@ -6,11 +6,15 @@ #include <clk.h> #include <cpu_func.h> #include <dm.h> +#include <efi_loader.h> #include <fastboot.h> #include <init.h> #include <log.h> +#include <mmc.h> +#include <part.h> #include <ram.h> #include <syscon.h> +#include <uuid.h> #include <asm/cache.h> #include <asm/global_data.h> #include <asm/io.h> @@ -22,8 +26,156 @@
DECLARE_GLOBAL_DATA_PTR;
+#if defined(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) && defined(CONFIG_EFI_PARTITION) + +#define DFU_ALT_BUF_LEN SZ_1K + +extern struct efi_fw_image fw_images[]; + +static bool updatable_image(struct disk_partition *info) +{ + int i; + bool ret = false; + efi_guid_t image_type_guid; + + uuid_str_to_bin(info->type_guid, image_type_guid.b, + UUID_STR_FORMAT_GUID); + + for (i = 0; i < num_image_type_guids; i++) { + if (!guidcmp(&fw_images[i].image_type_id, &image_type_guid)) { + ret = true; + break; + } + } + + return ret; +} + +static void set_image_index(struct disk_partition *info, int index) +{ + int i; + efi_guid_t image_type_guid; + + uuid_str_to_bin(info->type_guid, image_type_guid.b, + UUID_STR_FORMAT_GUID); + + for (i = 0; i < num_image_type_guids; i++) { + if (!guidcmp(&fw_images[i].image_type_id, &image_type_guid)) { + fw_images[i].image_index = index; + break; + } + } +} + +static int get_mmc_desc(struct blk_desc **desc) +{ + int ret; + struct mmc *mmc; + struct udevice *dev; + + /* + * For now the firmware images are assumed to + * be on the SD card + */ + ret = uclass_get_device(UCLASS_MMC, 1, &dev); + if (ret) + return -1; + + mmc = mmc_get_mmc_dev(dev); + if (!mmc) + return -ENODEV; + + if ((ret = mmc_init(mmc))) + return ret; + + *desc = mmc_get_blk_desc(mmc); + if (!*desc) + return -1; + + return 0; +} + +void set_dfu_alt_info(char *interface, char *devstr) +{ + const char *name; + bool first = true; + int p, len, devnum, ret; + char buf[DFU_ALT_BUF_LEN]; + struct disk_partition info; + struct blk_desc *desc = NULL; + + ret = get_mmc_desc(&desc); + if (ret) { + log_err("Unable to get mmc desc\n"); + return; + } + + memset(buf, 0, sizeof(buf)); + name = blk_get_if_type_name(desc->if_type); + devnum = desc->devnum; + len = strlen(buf); + + len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, + "%s %d=", name, devnum); + + for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { + if (part_get_info(desc, p, &info)) + continue; + + /* Add entry to dfu_alt_info only for updatable images */ + if (updatable_image(&info)) { + if (!first) + len += snprintf(buf + len, + DFU_ALT_BUF_LEN - len, ";"); + + len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, + "%s%d_%s part %d %d", + name, devnum, info.name, devnum, p); + first = false; + } + } + + log_debug("dfu_alt_info => %s\n", buf); + env_set("dfu_alt_info", buf); +} + +static void gpt_capsule_update_setup(void) +{ + int p, i, ret; + struct disk_partition info; + struct blk_desc *desc = NULL; + + rockchip_capsule_update_board_setup(); + + ret = get_mmc_desc(&desc); + if (ret) { + log_err("Unable to get mmc desc\n"); + return; + } + + for (p = 1, i = 1; p <= MAX_SEARCH_PARTITIONS; p++) { + if (part_get_info(desc, p, &info)) + continue; + + /* + * Since we have a GPT partitioned device, the updatable + * images could be stored in any order. Populate the + * image_index at runtime. + */ + if (updatable_image(&info)) { + set_image_index(&info, i); + i++; + } + } +} +#endif /* CONFIG_EFI_HAVE_CAPSULE_SUPPORT && CONFIG_EFI_PARTITION */ + __weak int rk_board_late_init(void) { +#if defined(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) && defined(CONFIG_EFI_PARTITION) + gpt_capsule_update_setup(); +#endif + return 0; }