--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2020
+ * Sam Protsenko <joe.skb7@gmail.com>
+ */
+
+#include <android_image.h>
+#include <common.h>
+#include <mapmem.h>
+
+#define abootimg_addr() \
+ (_abootimg_addr == -1 ? image_load_addr : _abootimg_addr)
+
+/* Please use abootimg_addr() macro to obtain the boot image address */
+static ulong _abootimg_addr = -1;
+
+static int abootimg_get_ver(int argc, char * const argv[])
+{
+ const struct andr_img_hdr *hdr;
+ int res = CMD_RET_SUCCESS;
+
+ if (argc > 1)
+ return CMD_RET_USAGE;
+
+ hdr = map_sysmem(abootimg_addr(), sizeof(*hdr));
+ if (android_image_check_header(hdr)) {
+ printf("Error: Boot Image header is incorrect\n");
+ res = CMD_RET_FAILURE;
+ goto exit;
+ }
+
+ if (argc == 0)
+ printf("%u\n", hdr->header_version);
+ else
+ env_set_ulong(argv[0], hdr->header_version);
+
+exit:
+ unmap_sysmem(hdr);
+ return res;
+}
+
+static int abootimg_get_recovery_dtbo(int argc, char * const argv[])
+{
+ ulong addr;
+ u32 size;
+
+ if (argc > 2)
+ return CMD_RET_USAGE;
+
+ if (!android_image_get_dtbo(abootimg_addr(), &addr, &size))
+ return CMD_RET_FAILURE;
+
+ if (argc == 0) {
+ printf("%lx\n", addr);
+ } else {
+ env_set_hex(argv[0], addr);
+ if (argc == 2)
+ env_set_hex(argv[1], size);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int abootimg_get_dtb_load_addr(int argc, char * const argv[])
+{
+ const struct andr_img_hdr *hdr;
+ int res = CMD_RET_SUCCESS;
+
+ if (argc > 1)
+ return CMD_RET_USAGE;
+
+ hdr = map_sysmem(abootimg_addr(), sizeof(*hdr));
+ if (android_image_check_header(hdr)) {
+ printf("Error: Boot Image header is incorrect\n");
+ res = CMD_RET_FAILURE;
+ goto exit;
+ }
+
+ if (hdr->header_version < 2) {
+ printf("Error: header_version must be >= 2 for this\n");
+ res = CMD_RET_FAILURE;
+ goto exit;
+ }
+
+ if (argc == 0)
+ printf("%lx\n", (ulong)hdr->dtb_addr);
+ else
+ env_set_hex(argv[0], (ulong)hdr->dtb_addr);
+
+exit:
+ unmap_sysmem(hdr);
+ return res;
+}
+
+static int abootimg_get_dtb_by_index(int argc, char * const argv[])
+{
+ const char *index_str;
+ u32 num;
+ char *endp;
+ ulong addr;
+ u32 size;
+
+ if (argc < 1 || argc > 3)
+ return CMD_RET_USAGE;
+
+ index_str = argv[0] + strlen("--index=");
+ if (index_str[0] == '\0') {
+ printf("Error: Wrong index num\n");
+ return CMD_RET_FAILURE;
+ }
+
+ num = simple_strtoul(index_str, &endp, 0);
+ if (*endp != '\0') {
+ printf("Error: Wrong index num\n");
+ return CMD_RET_FAILURE;
+ }
+
+ if (!android_image_get_dtb_by_index(abootimg_addr(), num,
+ &addr, &size)) {
+ return CMD_RET_FAILURE;
+ }
+
+ if (argc == 1) {
+ printf("%lx\n", addr);
+ } else {
+ if (env_set_hex(argv[1], addr)) {
+ printf("Error: Can't set [addr_var]\n");
+ return CMD_RET_FAILURE;
+ }
+
+ if (argc == 3) {
+ if (env_set_hex(argv[2], size)) {
+ printf("Error: Can't set [size_var]\n");
+ return CMD_RET_FAILURE;
+ }
+ }
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int abootimg_get_dtb(int argc, char * const argv[])
+{
+ if (argc < 1)
+ return CMD_RET_USAGE;
+
+ if (strstr(argv[0], "--index="))
+ return abootimg_get_dtb_by_index(argc, argv);
+
+ return CMD_RET_USAGE;
+}
+
+static int do_abootimg_addr(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ char *endp;
+ ulong img_addr;
+
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ img_addr = simple_strtoul(argv[1], &endp, 16);
+ if (*endp != '\0') {
+ printf("Error: Wrong image address\n");
+ return CMD_RET_FAILURE;
+ }
+
+ _abootimg_addr = img_addr;
+ return CMD_RET_SUCCESS;
+}
+
+static int do_abootimg_get(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ const char *param;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ param = argv[1];
+ argc -= 2;
+ argv += 2;
+ if (!strcmp(param, "ver"))
+ return abootimg_get_ver(argc, argv);
+ else if (!strcmp(param, "recovery_dtbo"))
+ return abootimg_get_recovery_dtbo(argc, argv);
+ else if (!strcmp(param, "dtb_load_addr"))
+ return abootimg_get_dtb_load_addr(argc, argv);
+ else if (!strcmp(param, "dtb"))
+ return abootimg_get_dtb(argc, argv);
+
+ return CMD_RET_USAGE;
+}
+
+static int do_abootimg_dump(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ if (!strcmp(argv[1], "dtb")) {
+ if (android_image_print_dtb_contents(abootimg_addr()))
+ return CMD_RET_FAILURE;
+ } else {
+ return CMD_RET_USAGE;
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static cmd_tbl_t cmd_abootimg_sub[] = {
+ U_BOOT_CMD_MKENT(addr, 2, 1, do_abootimg_addr, "", ""),
+ U_BOOT_CMD_MKENT(dump, 2, 1, do_abootimg_dump, "", ""),
+ U_BOOT_CMD_MKENT(get, 5, 1, do_abootimg_get, "", ""),
+};
+
+static int do_abootimg(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ cmd_tbl_t *cp;
+
+ cp = find_cmd_tbl(argv[1], cmd_abootimg_sub,
+ ARRAY_SIZE(cmd_abootimg_sub));
+
+ /* Strip off leading 'abootimg' command argument */
+ argc--;
+ argv++;
+
+ if (!cp || argc > cp->maxargs)
+ return CMD_RET_USAGE;
+ if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
+ return CMD_RET_SUCCESS;
+
+ return cp->cmd(cmdtp, flag, argc, argv);
+}
+
+U_BOOT_CMD(
+ abootimg, CONFIG_SYS_MAXARGS, 0, do_abootimg,
+ "manipulate Android Boot Image",
+ "addr <addr>\n"
+ " - set the address in RAM where boot image is located\n"
+ " ($loadaddr is used by default)\n"
+ "abootimg dump dtb\n"
+ " - print info for all DT blobs in DTB area\n"
+ "abootimg get ver [varname]\n"
+ " - get header version\n"
+ "abootimg get recovery_dtbo [addr_var [size_var]]\n"
+ " - get address and size (hex) of recovery DTBO area in the image\n"
+ " [addr_var]: variable name to contain DTBO area address\n"
+ " [size_var]: variable name to contain DTBO area size\n"
+ "abootimg get dtb_load_addr [varname]\n"
+ " - get load address (hex) of DTB, from image header\n"
+ "abootimg get dtb --index=<num> [addr_var [size_var]]\n"
+ " - get address and size (hex) of DT blob in the image by index\n"
+ " <num>: index number of desired DT blob in DTB area\n"
+ " [addr_var]: variable name to contain DT blob address\n"
+ " [size_var]: variable name to contain DT blob size"
+);
projects / u-boot.git / commitdiff
