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authorEugeniu Rosca <roscaeugeniu@gmail.com>2019-12-24 17:51:06 +0100
committerTom Rini <trini@konsulko.com>2020-01-10 14:18:26 -0500
commitb84acf10565af1578e68c533a36e629fe8b8e84a (patch)
treee4bba8f2c30229b19368b32811a0458104cceef4 /cmd/adtimg.c
parent27a38a6e71817243d71da8d798ec9daa31b3c49d (diff)
dtimg/am57xx_evm_defconfig: Rename dtimg to adtimg
Rename the existing 'dtimg' command to 'adtimg', in order to: - Suggest the Android origins and scope - Be consistent with the upcoming 'abootimg' command (naming suggested by Simon [*]) The change in _not_ backward compatible, but its benefits outweigh its downsides, given that we don't expect active users of 'dtimg' today. Perform the rename in several steps: 1. Rename *.c file and Kconfig symbol. This should allow 'git log --follow' to properly track the history of 'adtimg.c' 2. 's/dtimg/adtimg/g' in the internal namespace of 'adtimg.c' ELF comparison [**] before and after shows no functional change. [*] https://patchwork.ozlabs.org/patch/1182212/#2291600 [**] diff -u <(objdump -d cmd/dtimg.o) <(objdump -d cmd/adtimg.o) Cc: Tom Rini <trini@konsulko.com> Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by: Simon Glass<sjg@chromium.org> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Diffstat (limited to 'cmd/adtimg.c')
-rw-r--r--cmd/adtimg.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/cmd/adtimg.c b/cmd/adtimg.c
new file mode 100644
index 0000000000..6c5d53cc68
--- /dev/null
+++ b/cmd/adtimg.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018 Linaro Ltd.
+ * Sam Protsenko <semen.protsenko@linaro.org>
+ */
+
+#include <env.h>
+#include <image-android-dt.h>
+#include <common.h>
+
+enum cmd_dtimg_info {
+ CMD_DTIMG_START = 0,
+ CMD_DTIMG_SIZE,
+};
+
+static int do_dtimg_dump(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ char *endp;
+ ulong hdr_addr;
+
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ hdr_addr = simple_strtoul(argv[1], &endp, 16);
+ if (*endp != '\0') {
+ printf("Error: Wrong image address\n");
+ return CMD_RET_FAILURE;
+ }
+
+ if (!android_dt_check_header(hdr_addr)) {
+ printf("Error: DT image header is incorrect\n");
+ return CMD_RET_FAILURE;
+ }
+
+ android_dt_print_contents(hdr_addr);
+
+ return CMD_RET_SUCCESS;
+}
+
+static int dtimg_get_fdt(int argc, char * const argv[], enum cmd_dtimg_info cmd)
+{
+ ulong hdr_addr;
+ u32 index;
+ char *endp;
+ ulong fdt_addr;
+ u32 fdt_size;
+ char buf[65];
+
+ if (argc != 4)
+ return CMD_RET_USAGE;
+
+ hdr_addr = simple_strtoul(argv[1], &endp, 16);
+ if (*endp != '\0') {
+ printf("Error: Wrong image address\n");
+ return CMD_RET_FAILURE;
+ }
+
+ if (!android_dt_check_header(hdr_addr)) {
+ printf("Error: DT image header is incorrect\n");
+ return CMD_RET_FAILURE;
+ }
+
+ index = simple_strtoul(argv[2], &endp, 0);
+ if (*endp != '\0') {
+ printf("Error: Wrong index\n");
+ return CMD_RET_FAILURE;
+ }
+
+ if (!android_dt_get_fdt_by_index(hdr_addr, index, &fdt_addr, &fdt_size))
+ return CMD_RET_FAILURE;
+
+ switch (cmd) {
+ case CMD_DTIMG_START:
+ snprintf(buf, sizeof(buf), "%lx", fdt_addr);
+ break;
+ case CMD_DTIMG_SIZE:
+ snprintf(buf, sizeof(buf), "%x", fdt_size);
+ break;
+ default:
+ printf("Error: Unknown cmd_dtimg_info value: %d\n", cmd);
+ return CMD_RET_FAILURE;
+ }
+
+ env_set(argv[3], buf);
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_dtimg_start(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ return dtimg_get_fdt(argc, argv, CMD_DTIMG_START);
+}
+
+static int do_dtimg_size(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ return dtimg_get_fdt(argc, argv, CMD_DTIMG_SIZE);
+}
+
+static cmd_tbl_t cmd_dtimg_sub[] = {
+ U_BOOT_CMD_MKENT(dump, 2, 0, do_dtimg_dump, "", ""),
+ U_BOOT_CMD_MKENT(start, 4, 0, do_dtimg_start, "", ""),
+ U_BOOT_CMD_MKENT(size, 4, 0, do_dtimg_size, "", ""),
+};
+
+static int do_dtimg(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ cmd_tbl_t *cp;
+
+ cp = find_cmd_tbl(argv[1], cmd_dtimg_sub, ARRAY_SIZE(cmd_dtimg_sub));
+
+ /* Strip off leading 'dtimg' 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(
+ dtimg, CONFIG_SYS_MAXARGS, 0, do_dtimg,
+ "manipulate dtb/dtbo Android image",
+ "dump <addr>\n"
+ " - parse specified image and print its structure info\n"
+ " <addr>: image address in RAM, in hex\n"
+ "dtimg start <addr> <index> <varname>\n"
+ " - get address (hex) of FDT in the image, by index\n"
+ " <addr>: image address in RAM, in hex\n"
+ " <index>: index of desired FDT in the image\n"
+ " <varname>: name of variable where to store address of FDT\n"
+ "dtimg size <addr> <index> <varname>\n"
+ " - get size (hex, bytes) of FDT in the image, by index\n"
+ " <addr>: image address in RAM, in hex\n"
+ " <index>: index of desired FDT in the image\n"
+ " <varname>: name of variable where to store size of FDT"
+);