cns3xxx: eliminate hardcoded kernel/rootfs partition split
This changes the sysupgrade format. To support upgrades from the old firmware to the new one, legacy images are provided. Because of the old partition split, these have to be specific to the NOR or SPI device. The new sysupgrade images are suitable for begin put on flash directly, and they are independent of NOR vs SPI flash variant. Flashing back to old firmware is supported via using the old full-flash images instead of the old sysupgrade images. Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
parent
58fbe07560
commit
0b3a64f862
@ -1,112 +1,21 @@
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. /lib/cns3xxx.sh
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RAMFS_COPY_DATA="/lib/cns3xxx.sh"
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PART_NAME=firmware
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CI_BLKSZ=65536
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platform_find_partitions() {
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local first dev size erasesize name
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while read dev size erasesize name; do
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name=${name#'"'}; name=${name%'"'}
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case "$name" in
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vmlinux.bin.l7|kernel|linux|rootfs)
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if [ -z "$first" ]; then
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first="$name"
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else
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echo "$erasesize:$first:$name"
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break
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fi
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;;
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esac
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done < /proc/mtd
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}
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platform_find_kernelpart() {
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local part
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for part in "${1%:*}" "${1#*:}"; do
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case "$part" in
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vmlinux.bin.l7|kernel|linux)
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echo "$part"
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break
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;;
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esac
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done
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}
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platform_do_upgrade_combined() {
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local partitions=$(platform_find_partitions)
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local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
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local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
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local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
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local kern_blocks=$(($kern_length / $CI_BLKSZ))
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local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
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v "platform_do_upgrade_combined"
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v "partitions=$partitions"
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v "kernelpart=$kernelpart"
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v "erase_size=$erase_size"
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v "kern_blocks=$kern_blocks"
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v "root_blocks=$root_blocks"
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if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
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[ ${kern_blocks:-0} -gt 0 ] && \
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[ ${root_blocks:-0} -gt 0 ] && \
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[ ${erase_size:-0} -gt 0 ];
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then
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local append=""
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[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
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dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | mtd write - kernel
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dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \
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mtd -r $append write - rootfs
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else
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echo "invalid image"
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fi
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}
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platform_check_image() {
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local board=$(cns3xxx_board_name)
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local magic="$(get_magic_word "$1")"
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local magic_long="$(get_magic_long "$1")"
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local magic="$(get_magic_long "$1")"
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[ "$#" -gt 1 ] && return 1
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case "$board" in
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laguna)
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[ "$magic" != "4349" ] && {
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echo "Invalid image. Use *-sysupgrade.bin files on this board"
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[ "$magic" != "27051956" ] && {
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echo "Invalid image type."
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return 1
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}
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local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
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local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
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if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
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return 0
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else
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echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
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return 1
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fi
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return 0
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;;
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esac
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echo "Sysupgrade is not yet supported on $board."
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return 1
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}
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platform_do_upgrade() {
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local board=$(cns3xxx_board_name)
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v "board=$board"
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case "$board" in
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laguna)
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platform_do_upgrade_combined "$ARGV"
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;;
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*)
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default_do_upgrade "$ARGV"
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;;
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esac
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}
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disable_watchdog() {
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@ -47,6 +47,8 @@ CONFIG_CLKDEV_LOOKUP=y
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CONFIG_CLKSRC_OF=y
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CONFIG_CLKSRC_PROBE=y
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CONFIG_CLONE_BACKWARDS=y
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CONFIG_CMDLINE="console=ttyS0,115200"
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CONFIG_CMDLINE_FORCE=y
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CONFIG_CNS3XXX_ETH=y
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CONFIG_COMMON_CLK=y
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CONFIG_CPU_32v6=y
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@ -135,11 +137,6 @@ CONFIG_HAVE_FUNCTION_TRACER=y
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CONFIG_HAVE_GENERIC_DMA_COHERENT=y
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CONFIG_HAVE_IDE=y
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CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
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CONFIG_HAVE_KERNEL_GZIP=y
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CONFIG_HAVE_KERNEL_LZ4=y
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CONFIG_HAVE_KERNEL_LZMA=y
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CONFIG_HAVE_KERNEL_LZO=y
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CONFIG_HAVE_KERNEL_XZ=y
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CONFIG_HAVE_MEMBLOCK=y
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CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
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CONFIG_HAVE_NET_DSA=y
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@ -190,6 +187,8 @@ CONFIG_MTD_M25P80=y
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CONFIG_MTD_PHYSMAP=y
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# CONFIG_MTD_PHYSMAP_OF is not set
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CONFIG_MTD_SPI_NOR=y
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CONFIG_MTD_SPLIT_FIRMWARE=y
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CONFIG_MTD_SPLIT_UIMAGE_FW=y
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CONFIG_MULTI_IRQ_HANDLER=y
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CONFIG_MUTEX_SPIN_ON_OWNER=y
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CONFIG_NEED_DMA_MAP_STATE=y
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@ -122,13 +122,8 @@ static struct mtd_partition laguna_nor_partitions[] = {
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.size = SZ_128K,
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.offset = SZ_256K,
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}, {
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.name = "kernel",
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.size = SZ_2M,
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.name = "firmware",
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.offset = SZ_256K + SZ_128K,
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}, {
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.name = "rootfs",
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.size = SZ_16M - SZ_256K - SZ_128K - SZ_2M,
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.offset = SZ_256K + SZ_128K + SZ_2M,
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},
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};
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@ -168,13 +163,8 @@ static struct mtd_partition laguna_spi_partitions[] = {
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.size = SZ_256K,
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.offset = SZ_256K,
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}, {
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.name = "kernel",
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.size = SZ_1M + SZ_512K,
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.name = "firmware",
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.offset = SZ_512K,
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}, {
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.name = "rootfs",
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.size = SZ_16M - SZ_2M,
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.offset = SZ_2M,
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},
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};
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@ -1017,49 +1007,19 @@ static int __init laguna_model_setup(void)
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platform_device_register(&laguna_uart);
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if (laguna_info.config2_bitmap & (NOR_FLASH_LOAD)) {
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switch (laguna_info.nor_flash_size) {
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case 1:
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laguna_nor_partitions[3].size = SZ_8M - SZ_256K - SZ_128K - SZ_2M;
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laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_8M - 1;
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break;
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case 2:
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laguna_nor_partitions[3].size = SZ_16M - SZ_256K - SZ_128K - SZ_2M;
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laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_16M - 1;
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break;
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case 3:
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laguna_nor_partitions[3].size = SZ_32M - SZ_256K - SZ_128K - SZ_2M;
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laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_32M - 1;
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break;
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case 4:
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laguna_nor_partitions[3].size = SZ_64M - SZ_256K - SZ_128K - SZ_2M;
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laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_64M - 1;
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break;
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case 5:
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laguna_nor_partitions[3].size = SZ_128M - SZ_256K - SZ_128K - SZ_2M;
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laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_128M - 1;
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break;
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}
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laguna_nor_partitions[2].size =
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(SZ_4M << laguna_info.nor_flash_size) -
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laguna_nor_partitions[2].offset;
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laguna_nor_res.end = CNS3XXX_FLASH_BASE +
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laguna_nor_partitions[2].offset +
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laguna_nor_partitions[2].size - 1;
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platform_device_register(&laguna_nor_pdev);
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}
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if (laguna_info.config2_bitmap & (SPI_FLASH_LOAD)) {
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switch (laguna_info.spi_flash_size) {
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case 1:
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laguna_spi_partitions[3].size = SZ_4M - SZ_2M;
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break;
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case 2:
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laguna_spi_partitions[3].size = SZ_8M - SZ_2M;
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break;
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case 3:
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laguna_spi_partitions[3].size = SZ_16M - SZ_2M;
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break;
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case 4:
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laguna_spi_partitions[3].size = SZ_32M - SZ_2M;
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break;
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case 5:
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laguna_spi_partitions[3].size = SZ_64M - SZ_2M;
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break;
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}
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laguna_spi_partitions[2].size =
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(SZ_2M << laguna_info.spi_flash_size) -
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laguna_spi_partitions[2].offset;
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spi_register_board_info(ARRAY_AND_SIZE(laguna_spi_devices));
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}
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@ -11,14 +11,19 @@ define Image/Prepare
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mkimage -A arm -O linux -T kernel -C none -a 0x20008000 -e 0x20008000 -n 'OpenWrt Linux-$(LINUX_VERSION)' -d $(KDIR)/zImage $(KDIR)/uImage
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endef
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LEGACY_NOR_KERNEL_SIZE = 2048k
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LEGACY_SPI_KERNEL_SIZE = 1536k
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# Build sysupgrade image
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define BuildFirmware/Generic
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dd if=$(KDIR)/uImage of=$(KDIR)/uImage.pad bs=64k conv=sync; \
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dd if=$(KDIR)/root.$(1) of=$(KDIR)/root.$(1).pad bs=128k conv=sync; \
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define BuildFirmware/Legacy
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dd if=$(BIN_DIR)/$(IMG_PREFIX)-$(1)-sysupgrade.bin \
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of=$(KDIR)/uImage.pad bs=$(3) count=1
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dd if=$(BIN_DIR)/$(IMG_PREFIX)-$(1)-sysupgrade.bin \
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of=$(KDIR)/root.$(1).pad bs=$(3) skip=1
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sh $(TOPDIR)/scripts/combined-image.sh \
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$(KDIR)/uImage.pad \
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$(KDIR)/root.$(1).pad \
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$(BIN_DIR)/$(IMG_PREFIX)-$(patsubst jffs2-%,jffs2,$(patsubst squashfs-%,squashfs,$(1)))-sysupgrade.bin
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$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-legacy-sysupgrade.bin
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endef
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define Image/BuildKernel/Initramfs
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@ -26,22 +31,14 @@ define Image/BuildKernel/Initramfs
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endef
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define Image/Build
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cat $(KDIR)/uImage $(KDIR)/root.$(1) > $(BIN_DIR)/$(IMG_PREFIX)-$(1)-sysupgrade.bin
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$(call Image/Build/$(1),$(1))
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$(call BuildFirmware/Generic,$(1))
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cp $(KDIR)/uImage $(BIN_DIR)/$(IMG_PREFIX)-uImage
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$(call BuildFirmware/Legacy,$(1),laguna_spi,$(LEGACY_SPI_KERNEL_SIZE))
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$(call BuildFirmware/Legacy,$(1),laguna_nor,$(LEGACY_NOR_KERNEL_SIZE))
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endef
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define Image/Build/squashfs
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$(call prepare_generic_squashfs,$(KDIR)/root.$(1))
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dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-$(1).img bs=128k conv=sync
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( \
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dd if=$(KDIR)/uImage bs=2048k conv=sync; \
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dd if=$(KDIR)/root.$(1) bs=128k conv=sync; \
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) > $(BIN_DIR)/$(IMG_PREFIX)-$(1)_laguna_nor.bin
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( \
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dd if=$(KDIR)/uImage bs=1536k conv=sync; \
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dd if=$(KDIR)/root.$(1) bs=256k conv=sync; \
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) > $(BIN_DIR)/$(IMG_PREFIX)-$(1)_laguna_spi.bin
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$(call prepare_generic_squashfs,$(BIN_DIR)/$(IMG_PREFIX)-$(1)-sysupgrade.bin)
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endef
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$(eval $(call BuildImage))
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