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firmware-utils: mktplinkfw: rework combined image option

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We use combined option in "mktplinkfw" tool for generating initramfs
kernel images and header for kernel inside "safeloader" image type (in
fact, only for TL-WR1043ND v4 at this moment).

There is also "mktplinkfw-kernel" tool, a stripped-down version, used
only for generating "simple" header, for safeloader image types.

This changes how "mktplinkfw" handles combined images (which then will
allow us to drop the stripped-down version of the tool):

- drop "ignore size" command line option (it was used only for combined
  images anyway)
- don't require "flash layout id" for combined images (we don't need and
  shouldn't limit size of the initramfs kernel and for kernels inside
  safeloader images, the "tplink-safeloader" tool does the size check)
- require kernel address and entry point in command line parameters for
  combined images (consequence of previous point)
- don't include md5 sum and firmware length values in header (they are
  needed only for update from vendor GUI and are ingored in case of
  initramfs and "tplink-safeloader" images)
- drop "fake" flash layout for TL-WR1043ND v4 as it's no longer needed

Also, adjust "mktplinkfw-combined" command in ar71xx/image/tp-link.mk to
match introduced changes in "mktplinkfw" tool.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
master
Piotr Dymacz 7 years ago
parent 8223dac99a
commit b3cb0e7588
2 changed files with 44 additions and 62 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 7
      target/linux/ar71xx/image/tp-link.mk
  2. 65
      tools/firmware-utils/src/mktplinkfw.c

7
target/linux/ar71xx/image/tp-link.mk
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@ -40,11 +40,11 @@ endef
# -c combined image
define Build/mktplinkfw-combined
$(STAGING_DIR_HOST)/bin/mktplinkfw \
-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) $(1) \
-m $(TPLINK_HEADER_VERSION) \
-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -N OpenWrt -V $(REVISION) $(1) \
-L $(KERNEL_LOADADDR) -m $(TPLINK_HEADER_VERSION) \
-E $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-k $@ \
-o $@.new \
-s -S \
-c
@mv $@.new $@
endef
@ -707,7 +707,6 @@ define Device/tl-wr1043nd-v4
BOARDNAME := TL-WR1043ND-v4
DEVICE_PROFILE := TLWR1043
TPLINK_HWID := 0x10430004
TPLINK_FLASHLAYOUT := 16Msafeloader
MTDPARTS := spi0.0:128k(u-boot)ro,1536k(kernel),14016k(rootfs),128k(product-info)ro,320k(config)ro,64k(partition-table)ro,128k(logs)ro,64k(ART)ro,15552k@0x20000(firmware)
IMAGE_SIZE := 15552k
TPLINK_BOARD_ID := TLWR1043NDV4

65
tools/firmware-utils/src/mktplinkfw.c
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@ -117,7 +117,6 @@ static uint32_t rootfs_align;
static struct file_info boot_info;
static int combined;
static int strip_padding;
static int ignore_size;
static int add_jffs2_eof;
static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
static uint32_t fw_max_len;
@ -180,20 +179,6 @@ static struct flash_layout layouts[] = {
.kernel_la = 0x00000000 ,
.kernel_ep = 0xc0000000,
.rootfs_ofs = 0x2a0000,
}, {
/*
Some devices (e.g. TL-WR1043 v4) use a mktplinkfw kernel image
embedded in a tplink-safeloader image as os-image partition.
We use a 1.5MB partition for the compressed kernel, which should
be sufficient, but not too wasteful (the flash of the TL-WR1043 v4
has 16MB in total).
*/
.id = "16Msafeloader",
.fw_max_len = 0x180000,
.kernel_la = 0x80060000,
.kernel_ep = 0x80060000,
.rootfs_ofs = 0,
}, {
/* terminating entry */
}
@ -272,7 +257,6 @@ static void usage(int status)
" -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
" -o <file> write output to the file <file>\n"
" -s strip padding from the end of the image\n"
" -S ignore firmware size limit (only for combined images)\n"
" -j add jffs2 end-of-filesystem markers\n"
" -N <vendor> set image vendor to <vendor>\n"
" -V <version> set image version to <version>\n"
@ -362,7 +346,7 @@ static int check_options(void)
}
hw_id = strtoul(opt_hw_id, NULL, 0);
if (layout_id == NULL) {
if (!combined && layout_id == NULL) {
ERR("flash layout is not specified");
return -1;
}
@ -380,6 +364,12 @@ static int check_options(void)
}
}
if (combined) {
if (!kernel_la || !kernel_ep) {
ERR("kernel loading address and entry point must be specified for combined image");
return -1;
}
} else {
layout = find_layout(layout_id);
if (layout == NULL) {
ERR("unknown flash layout \"%s\"", layout_id);
@ -397,8 +387,7 @@ static int check_options(void)
ERR("reserved space is not valid");
return -1;
}
fw_max_len = layout->fw_max_len - reserved_space;
}
if (kernel_info.file_name == NULL) {
ERR("no kernel image specified");
@ -411,18 +400,9 @@ static int check_options(void)
kernel_len = kernel_info.file_size;
if (combined) {
exceed_bytes = kernel_info.file_size - (fw_max_len - sizeof(struct fw_header));
if (exceed_bytes > 0) {
if (!ignore_size) {
ERR("kernel image is too big by %i bytes", exceed_bytes);
return -1;
}
layout->fw_max_len = sizeof(struct fw_header) +
kernel_info.file_size +
reserved_space;
}
} else {
if (!combined) {
fw_max_len = layout->fw_max_len - reserved_space;
if (rootfs_info.file_name == NULL) {
ERR("no rootfs image specified");
return -1;
@ -494,17 +474,18 @@ static void fill_header(char *buf, int len)
hdr->hw_id = htonl(hw_id);
hdr->hw_rev = htonl(hw_rev);
hdr->kernel_la = htonl(kernel_la);
hdr->kernel_ep = htonl(kernel_ep);
hdr->kernel_ofs = htonl(sizeof(struct fw_header));
hdr->kernel_len = htonl(kernel_len);
if (!combined) {
if (boot_info.file_size == 0)
memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
else
memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
hdr->kernel_la = htonl(kernel_la);
hdr->kernel_ep = htonl(kernel_ep);
hdr->fw_length = htonl(layout->fw_max_len);
hdr->kernel_ofs = htonl(sizeof(struct fw_header));
hdr->kernel_len = htonl(kernel_len);
if (!combined) {
hdr->rootfs_ofs = htonl(rootfs_ofs);
hdr->rootfs_len = htonl(rootfs_info.file_size);
}
@ -530,6 +511,7 @@ static void fill_header(char *buf, int len)
hdr->kernel_ep = bswap_32(hdr->kernel_ep);
}
if (!combined)
get_md5(buf, len, hdr->md5sum1);
}
@ -607,6 +589,11 @@ static int build_fw(void)
int ret = EXIT_FAILURE;
int writelen = 0;
writelen = sizeof(struct fw_header) + kernel_len;
if (combined)
buflen = writelen;
else
buflen = layout->fw_max_len;
buf = malloc(buflen);
@ -621,7 +608,6 @@ static int build_fw(void)
if (ret)
goto out_free_buf;
writelen = sizeof(struct fw_header) + kernel_len;
if (!combined) {
if (rootfs_align)
@ -814,7 +800,7 @@ int main(int argc, char *argv[])
while ( 1 ) {
int c;
c = getopt(argc, argv, "a:H:E:F:L:m:V:N:W:C:ci:k:r:R:o:xX:ehsSjv:");
c = getopt(argc, argv, "a:H:E:F:L:m:V:N:W:C:ci:k:r:R:o:xX:ehsjv:");
if (c == -1)
break;
@ -870,9 +856,6 @@ int main(int argc, char *argv[])
case 's':
strip_padding = 1;
break;
case 'S':
ignore_size = 1;
break;
case 'i':
inspect_info.file_name = optarg;
break;

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