Add helper functions needed for accessing the FWU metadata which contains information on the updatable images. These functions have been added for the STM32MP157C-DK2 board which has the updatable images on the uSD card, formatted as GPT partitions.
Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org ---
Changes since V3: * Remove function for getting the storage device containing the metadata as the information is now obtained from the device tree.
board/st/stm32mp1/stm32mp1.c | 78 ++++++++++++++++++++++++++++++++++++ include/fwu.h | 3 ++ 2 files changed, 81 insertions(+)
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index 84592677e4..5e8cb29067 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -7,10 +7,13 @@
#include <common.h> #include <adc.h> +#include <blk.h> #include <bootm.h> #include <clk.h> #include <config.h> +#include <dfu.h> #include <dm.h> +#include <efi_loader.h> #include <env.h> #include <env_internal.h> #include <fdt_support.h> @@ -23,9 +26,11 @@ #include <log.h> #include <malloc.h> #include <misc.h> +#include <mmc.h> #include <mtd_node.h> #include <net.h> #include <netdev.h> +#include <part.h> #include <phy.h> #include <remoteproc.h> #include <reset.h> @@ -938,3 +943,76 @@ static void board_copro_image_process(ulong fw_image, size_t fw_size) }
U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process); + +#if defined(CONFIG_FWU_MULTI_BANK_UPDATE) +#include <fwu.h> +#include <fwu_mdata.h> + +static int gpt_plat_get_alt_num(int dev_num, void *identifier) +{ + int i; + int ret = -1; + u32 part; + int alt_num = dfu_get_alt_number(); + struct dfu_entity *dfu; + + part = *(u32 *)identifier; + dfu_init_env_entities(NULL, NULL); + + for (i = 0; i < alt_num; i++) { + dfu = dfu_get_entity(i); + + if (!dfu) + continue; + + /* + * Currently, Multi Bank update + * feature is being supported + * only on GPT partitioned + * MMC/SD devices. + */ + if (dfu->dev_type != DFU_DEV_MMC) + continue; + + if (dfu->layout == DFU_RAW_ADDR && + dfu->data.mmc.dev_num == dev_num && + dfu->data.mmc.part == part) { + ret = dfu->alt; + break; + } + } + + dfu_free_entities(); + + return ret; +} + +int fwu_plat_get_alt_num(struct udevice *dev, void *identifier) +{ + struct blk_desc *desc; + + desc = dev_get_uclass_plat(dev); + if (!desc) { + log_err("Block device not found\n"); + return -ENODEV; + } + + return gpt_plat_get_alt_num(desc->devnum, identifier); +} + +int fwu_plat_get_update_index(u32 *update_idx) +{ + int ret; + u32 active_idx; + + ret = fwu_get_active_index(&active_idx); + + if (ret < 0) + return -1; + + *update_idx = active_idx ^= 0x1; + + return ret; +} + +#endif /* CONFIG_FWU_MULTI_BANK_UPDATE */ diff --git a/include/fwu.h b/include/fwu.h index 2c7db2dff9..b746e616b2 100644 --- a/include/fwu.h +++ b/include/fwu.h @@ -50,4 +50,7 @@ int fwu_revert_boot_index(void); int fwu_accept_image(efi_guid_t *img_type_id, u32 bank); int fwu_clear_accept_image(efi_guid_t *img_type_id, u32 bank);
+int fwu_plat_get_update_index(u32 *update_idx); +int fwu_plat_get_alt_num(struct udevice *dev, void *identifier); + #endif /* _FWU_H_ */