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.g...@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_ */
--
2.17.1
