[RFC PATCH v3 3/9] FWU: stm32mp1: Add helper functions for accessing FWU metadata
Masami Hiramatsu
masami.hiramatsu at linaro.org
Mon Jan 24 03:46:33 CET 2022
Hi Sughosh,
BTW, I can't find the definition of CONFIG_FWU_NUM_IMAGES_PER_BANK and
CONFIG_FWU_NUM_BANKS for this platform.
Is it really possible to build this platform with FWU_MULTI_BANK_UPDATE?
Thank you,
2022年1月20日(木) 3:56 Sughosh Ganu <sughosh.ganu at linaro.org>:
>
> 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 at linaro.org>
> ---
>
> Changes since V2:
> * Change the implementation of fwu_plat_get_alt_num to get the devnum
> in the function before calling gpt_plat_get_alt_num
>
> board/st/stm32mp1/stm32mp1.c | 176 ++++++++++++++++++++++++++++
> include/fwu.h | 5 +
> lib/fwu_updates/fwu_mdata_gpt_blk.c | 7 +-
> 3 files changed, 185 insertions(+), 3 deletions(-)
>
> diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
> index 84592677e4..66cbe3f798 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 +943,174 @@ 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(void *identifier)
> +{
> + int ret;
> + struct blk_desc *desc;
> +
> + ret = fwu_plat_get_blk_desc(&desc);
> + if (ret < 0) {
> + log_err("Block device not found\n");
> + return -ENODEV;
> + }
> +
> + return gpt_plat_get_alt_num(desc->devnum, identifier);
> +}
> +
> +static int plat_fill_gpt_partition_guids(struct blk_desc *desc,
> + efi_guid_t **part_guid_arr)
> +{
> + int i, ret = 0;
> + u32 part;
> + struct dfu_entity *dfu;
> + struct disk_partition info;
> + efi_guid_t part_type_guid;
> + int alt_num = dfu_get_alt_number();
> +
> + dfu_init_env_entities(NULL, NULL);
> +
> + for (i = 0, part = 1; 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 (part_get_info(desc, part, &info)) {
> + part++;
> + continue;
> + }
> +
> + uuid_str_to_bin(info.type_guid, part_type_guid.b,
> + UUID_STR_FORMAT_GUID);
> + guidcpy((*part_guid_arr + i), &part_type_guid);
> + part++;
> + }
> +
> + dfu_free_entities();
> +
> + return ret;
> +}
> +
> +int fwu_plat_fill_partition_guids(efi_guid_t **part_guid_arr)
> +{
> + int ret;
> + struct blk_desc *desc;
> +
> + ret = fwu_plat_get_blk_desc(&desc);
> + if (ret < 0) {
> + log_err("Block device not found\n");
> + return -ENODEV;
> + }
> +
> + return plat_fill_gpt_partition_guids(desc, part_guid_arr);
> +}
> +
> +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;
> +}
> +
> +int fwu_plat_get_blk_desc(struct blk_desc **desc)
> +{
> + int ret;
> + struct mmc *mmc;
> + struct udevice *dev;
> +
> + /*
> + * Initial support is being added for the DK2
> + * platform
> + */
> + if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
> + (of_machine_is_compatible("st,stm32mp157c-dk2"))) {
> + ret = uclass_get_device(UCLASS_MMC, 0, &dev);
> + if (ret)
> + return -1;
> +
> + mmc = mmc_get_mmc_dev(dev);
> + if (!mmc)
> + return -1;
> +
> + if (mmc_init(mmc))
> + return -1;
> +
> + *desc = mmc_get_blk_desc(mmc);
> + if (!*desc)
> + return -1;
> + }
> +
> + return 0;
> +}
> +
> +struct fwu_mdata_ops *get_plat_fwu_mdata_ops(void)
> +{
> + if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
> + (of_machine_is_compatible("st,stm32mp157c-dk2"))) {
> + return &fwu_gpt_blk_ops;
> + }
> +
> + return NULL;
> +}
> +#endif /* CONFIG_FWU_MULTI_BANK_UPDATE */
> diff --git a/include/fwu.h b/include/fwu.h
> index 12f7eecdb0..b23a93ac40 100644
> --- a/include/fwu.h
> +++ b/include/fwu.h
> @@ -59,4 +59,9 @@ 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_blk_desc(struct blk_desc **desc);
> +int fwu_plat_get_alt_num(void *identifier);
> +int fwu_plat_fill_partition_guids(efi_guid_t **part_guid_arr);
> +
> #endif /* _FWU_H_ */
> diff --git a/lib/fwu_updates/fwu_mdata_gpt_blk.c b/lib/fwu_updates/fwu_mdata_gpt_blk.c
> index cb47ddf4a7..796b08e76f 100644
> --- a/lib/fwu_updates/fwu_mdata_gpt_blk.c
> +++ b/lib/fwu_updates/fwu_mdata_gpt_blk.c
> @@ -37,6 +37,7 @@ static int gpt_get_mdata_partitions(struct blk_desc *desc,
> struct disk_partition info;
> const efi_guid_t fwu_mdata_guid = FWU_MDATA_GUID;
>
> + mdata_parts = 0;
> for (i = 1; i < MAX_SEARCH_PARTITIONS; i++) {
> if (part_get_info(desc, i, &info))
> continue;
> @@ -324,7 +325,7 @@ out:
> int fwu_gpt_get_active_index(u32 *active_idx)
> {
> int ret;
> - struct fwu_mdata *mdata;
> + struct fwu_mdata *mdata = NULL;
>
> ret = gpt_get_mdata(&mdata);
> if (ret < 0) {
> @@ -355,7 +356,7 @@ static int gpt_get_image_alt_num(struct blk_desc *desc,
> {
> int ret, i;
> u32 part;
> - struct fwu_mdata *mdata;
> + struct fwu_mdata *mdata = NULL;
> struct fwu_image_entry *img_entry;
> struct fwu_image_bank_info *img_bank_info;
> struct disk_partition info;
> @@ -459,7 +460,7 @@ static int fwu_gpt_set_clear_image_accept(efi_guid_t *img_type_id,
> void *buf;
> int ret, i;
> u32 nimages;
> - struct fwu_mdata *mdata;
> + struct fwu_mdata *mdata = NULL;
> struct fwu_image_entry *img_entry;
> struct fwu_image_bank_info *img_bank_info;
>
> --
> 2.17.1
>
--
Masami Hiramatsu
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