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firmware/build_patches/openwrt/0011-firmware-utils-mktplin...

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From b3cb0e75884222e141a40443c25d20deedf7a552 Mon Sep 17 00:00:00 2001
From: Piotr Dymacz <pepe2k@gmail.com>
Date: Thu, 6 Jul 2017 16:34:47 +0200
Subject: [PATCH] firmware-utils: mktplinkfw: rework combined image option
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>
[Rebased on 8ad1b09]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
---
target/linux/ar71xx/image/tp-link.mk | 7 ++-
tools/firmware-utils/src/mktplinkfw.c | 99 +++++++++++++++--------------------
2 files changed, 44 insertions(+), 62 deletions(-)
diff --git a/target/linux/ar71xx/image/tp-link.mk b/target/linux/ar71xx/image/tp-link.mk
index 32d16f9..2557858 100644
--- a/target/linux/ar71xx/image/tp-link.mk
+++ b/target/linux/ar71xx/image/tp-link.mk
@@ -26,11 +26,11 @@ 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
@@ -849,7 +849,6 @@ 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_NAME := TLWR1043NDV4
diff --git a/tools/firmware-utils/src/mktplinkfw.c b/tools/firmware-utils/src/mktplinkfw.c
index fbf8960..3cfe5f7 100644
--- a/tools/firmware-utils/src/mktplinkfw.c
+++ b/tools/firmware-utils/src/mktplinkfw.c
@@ -115,7 +115,6 @@ 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;
@@ -178,20 +177,6 @@ static struct flash_layout layouts[] = {
.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 */
}
};
@@ -268,7 +253,6 @@ 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"
@@ -358,7 +342,7 @@ 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;
}
@@ -376,26 +360,31 @@ static int check_options(void)
}
}
- layout = find_layout(layout_id);
- if (layout == NULL) {
- ERR("unknown flash layout \"%s\"", layout_id);
- return -1;
- }
+ 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);
+ return -1;
+ }
- if (!kernel_la)
- kernel_la = layout->kernel_la;
- if (!kernel_ep)
- kernel_ep = layout->kernel_ep;
- if (!rootfs_ofs)
- rootfs_ofs = layout->rootfs_ofs;
+ if (!kernel_la)
+ kernel_la = layout->kernel_la;
+ if (!kernel_ep)
+ kernel_ep = layout->kernel_ep;
+ if (!rootfs_ofs)
+ rootfs_ofs = layout->rootfs_ofs;
- if (reserved_space > layout->fw_max_len) {
- ERR("reserved space is not valid");
- return -1;
+ if (reserved_space > layout->fw_max_len) {
+ 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");
return -1;
@@ -407,18 +396,9 @@ 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;
@@ -490,17 +470,18 @@ static void fill_header(char *buf, int len)
hdr->hw_id = htonl(hw_id);
hdr->hw_rev = htonl(hw_rev);
- 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) {
+ if (boot_info.file_size == 0)
+ memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
+ else
+ memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
+
+ hdr->fw_length = htonl(layout->fw_max_len);
hdr->rootfs_ofs = htonl(rootfs_ofs);
hdr->rootfs_len = htonl(rootfs_info.file_size);
}
@@ -521,7 +502,8 @@ static void fill_header(char *buf, int len)
);
}
- get_md5(buf, len, hdr->md5sum1);
+ if (!combined)
+ get_md5(buf, len, hdr->md5sum1);
}
static int pad_jffs2(char *buf, int currlen)
@@ -598,7 +580,12 @@ static int build_fw(void)
int ret = EXIT_FAILURE;
int writelen = 0;
- buflen = layout->fw_max_len;
+ writelen = sizeof(struct fw_header) + kernel_len;
+
+ if (combined)
+ buflen = writelen;
+ else
+ buflen = layout->fw_max_len;
buf = malloc(buflen);
if (!buf) {
@@ -612,7 +599,6 @@ static int build_fw(void)
if (ret)
goto out_free_buf;
- writelen = sizeof(struct fw_header) + kernel_len;
if (!combined) {
if (rootfs_align)
@@ -805,7 +791,7 @@ 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:hsSjv:");
+ 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;
@@ -861,9 +847,6 @@ 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;
--
2.7.4
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