diff options
Diffstat (limited to 'roms/u-boot/board/emulation/common/qemu_dfu.c')
-rw-r--r-- | roms/u-boot/board/emulation/common/qemu_dfu.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/roms/u-boot/board/emulation/common/qemu_dfu.c b/roms/u-boot/board/emulation/common/qemu_dfu.c new file mode 100644 index 000000000..62234a764 --- /dev/null +++ b/roms/u-boot/board/emulation/common/qemu_dfu.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2020 Linaro Limited + */ + +#include <common.h> +#include <dfu.h> +#include <env.h> +#include <memalign.h> +#include <mtd.h> + +#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)); + + /* + * Currently dfu_alt_info is needed on Qemu ARM64 for + * capsule updates + */ + if (IS_ENABLED(CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT) && + IS_ENABLED(CONFIG_TARGET_QEMU_ARM_64BIT)) { + /* 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"); +} |