The dfu framework uses the dfu_alt_info environment variable to get information that is needed for performing the firmware update. Set the dfu_alt_info for the platform to reflect the two mtd partitions created for the u-boot env and the firmware image.
Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org ---
Changes since V1: * Build set_dfu_alt_info and board_get_alt_info functions only if CONFIG_SET_DFU_ALT_INFO is defined * Enable CONFIG_SET_DFU_ALT_INFO with CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT
board/emulation/qemu-arm/qemu-arm.c | 57 +++++++++++++++++++++++++++++ lib/efi_loader/Kconfig | 1 + 2 files changed, 58 insertions(+)
diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c index 68f70cb9be..a7be3c7c1c 100644 --- a/board/emulation/qemu-arm/qemu-arm.c +++ b/board/emulation/qemu-arm/qemu-arm.c @@ -195,8 +195,65 @@ void flash_write32(u32 value, void *addr)
#if defined(CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT)
+#include <memalign.h> #include <mtd.h>
+#define MTDPARTS_LEN 256 +#define MTDIDS_LEN 128 + +#define DFU_ALT_BUF_LEN SZ_1K + +#if defined(CONFIG_SET_DFU_ALT_INFO) +static void board_get_alt_info(struct mtd_info *mtd, char *buf) +{ + struct mtd_info *part; + bool first = true; + const char *name; + int len, partnum = 0; + + name = mtd->name; + len = strlen(buf); + + if (buf[0] != '\0') + len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, "&"); + len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, + "mtd %s=", name); + + list_for_each_entry(part, &mtd->partitions, node) { + partnum++; + if (!first) + len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, ";"); + first = false; + + len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, + "%s part %d", + part->name, partnum); + } +} + +void set_dfu_alt_info(char *interface, char *devstr) +{ + struct mtd_info *mtd; + + ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN); + + if (env_get("dfu_alt_info")) + return; + + memset(buf, 0, sizeof(buf)); + + /* probe all MTD devices */ + mtd_probe_devices(); + + mtd = get_mtd_device_nm("nor0"); + if (!IS_ERR_OR_NULL(mtd)) + board_get_alt_info(mtd, buf); + + env_set("dfu_alt_info", buf); + printf("dfu_alt_info set\n"); +} +#endif /* CONFIG_SET_DFU_ALT_INFO */ + static void board_get_mtdparts(const char *dev, const char *partition, char *mtdids, char *mtdparts) { diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index 2cb0a6e399..bc47e7fe76 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -136,6 +136,7 @@ config EFI_CAPSULE_FIRMWARE_MANAGEMENT depends on EFI_HAVE_CAPSULE_SUPPORT default y select SYS_MTDPARTS_RUNTIME + select SET_DFU_ALT_INFO help Select this option if you want to enable capsule-based firmware update using Firmware Management Protocol.