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.g...@linaro.org>
---
board/emulation/qemu-arm/qemu-arm.c | 55 +++++++++++++++++++++++++++++
include/configs/qemu-arm.h | 1 +
2 files changed, 56 insertions(+)
diff --git a/board/emulation/qemu-arm/qemu-arm.c
b/board/emulation/qemu-arm/qemu-arm.c
index d5ed3eebaf..8cad54c76f 100644
--- a/board/emulation/qemu-arm/qemu-arm.c
+++ b/board/emulation/qemu-arm/qemu-arm.c
@@ -200,8 +200,63 @@ 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
+
+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");
+}
+
static void board_get_mtdparts(const char *dev, const char *partition,
char *mtdids, char *mtdparts)
{
diff --git a/include/configs/qemu-arm.h b/include/configs/qemu-arm.h
index 69ff329434..726f985d35 100644
--- a/include/configs/qemu-arm.h
+++ b/include/configs/qemu-arm.h
@@ -33,6 +33,7 @@
#include <config_distro_bootcmd.h>
#if defined(CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT)
+#define CONFIG_SET_DFU_ALT_INFO
#define CONFIG_SYS_MTDPARTS_RUNTIME
#endif
--
2.17.1
