fwu: DeveloperBox: add support for FWU

Add code to support FWU_MULTI_BANK_UPDATE.
The platform does not have gpt-partition storage for
Banks and MetaData, rather it used SPI-NOR backed
mtd regions for the purpose.

Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

3 files changed, 46 insertions, 0 deletions

diff --git a/board/socionext/developerbox/Makefile b/board/socionext/developerbox/Makefile
index 4a46de995a0..1acd067a7e4 100644
--- a/board/socionext/developerbox/Makefile
+++ b/board/socionext/developerbox/Makefile
@@ -7,3 +7,4 @@
 #
 
 obj-y	:= developerbox.o
+obj-$(CONFIG_FWU_MDATA_MTD) += fwu_plat.o
diff --git a/board/socionext/developerbox/developerbox.c b/board/socionext/developerbox/developerbox.c
index d92e1d09627..204e5a41a5b 100644
--- a/board/socionext/developerbox/developerbox.c
+++ b/board/socionext/developerbox/developerbox.c
@@ -20,6 +20,13 @@
 
 #if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)
 struct efi_fw_image fw_images[] = {
+#if CONFIG_IS_ENABLED(FWU_MULTI_BANK_UPDATE)
+	{
+		.image_type_id = DEVELOPERBOX_FIP_IMAGE_GUID,
+		.fw_name = u"DEVELOPERBOX-FIP",
+		.image_index = 1,
+	},
+#else
 	{
 		.image_type_id = DEVELOPERBOX_UBOOT_IMAGE_GUID,
 		.fw_name = u"DEVELOPERBOX-UBOOT",
@@ -35,6 +42,7 @@ struct efi_fw_image fw_images[] = {
 		.fw_name = u"DEVELOPERBOX-OPTEE",
 		.image_index = 3,
 	},
+#endif
 };
 
 struct efi_capsule_update_info update_info = {
diff --git a/board/socionext/developerbox/fwu_plat.c b/board/socionext/developerbox/fwu_plat.c
new file mode 100644
index 00000000000..e724e702bdc
--- /dev/null
+++ b/board/socionext/developerbox/fwu_plat.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+#include <efi_loader.h>
+#include <fwu.h>
+#include <fwu_mdata.h>
+#include <memalign.h>
+#include <mtd.h>
+
+#define DFU_ALT_BUF_LEN 256
+
+/* Generate dfu_alt_info from partitions */
+void set_dfu_alt_info(char *interface, char *devstr)
+{
+	ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
+	struct mtd_info *mtd;
+	int ret;
+
+	memset(buf, 0, sizeof(buf));
+
+	mtd_probe_devices();
+
+	mtd = get_mtd_device_nm("nor1");
+	if (IS_ERR_OR_NULL(mtd))
+		return;
+
+	ret = fwu_gen_alt_info_from_mtd(buf, DFU_ALT_BUF_LEN, mtd);
+	if (ret < 0) {
+		log_err("Error: Failed to generate dfu_alt_info. (%d)\n", ret);
+		return;
+	}
+	log_debug("Make dfu_alt_info: '%s'\n", buf);
+
+	env_set("dfu_alt_info", buf);
+}