ar71xx: Enable mtdsplit support for RB SPI NOR devices

This patch enables mtdsplit for the MikroTik subtarget.
It converts mach-rbspi.c to use a single "firmware" partition.
Finally, it converts the SPI NOR profile to metadata images:
the original combined-image format is gone, the images are now
"standard" sysupgrade images with metadata appended.

Note: kernel2minor apparently pads the kernel container to erase-block
boundary, but this is undocumented behaviour, so we do not rely on it
and call pad-to anyway.

Note: in platform.sh, the boards are tested last in platform_check_image()
as this should eventually become the "*)" default case when more devices
switch to metadata images.

Signed-off-by: Thibaut VARENE <hacks@slashdirt.org>

diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 7423c38c5f544feb4a6deae4f0187f3d528be854..d48135a6d3b8251aecca6ad6215bf79c9effe132 100755 (executable)
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -344,11 +344,6 @@ platform_check_image() {
        ls-sr71|\
        pb42|\
        pb44|\
-       rb-750-r2|\
-       rb-750up-r2|\
-       rb-941-2nd|\
-       rb-951ui-2nd|\
-       rb-mapl-2nd|\
        routerstation-pro|\
        routerstation|\
        wp543|\
@@ -637,6 +632,14 @@ platform_check_image() {
 
                return 0;
                ;;
+       # these boards use metadata images
+       rb-750-r2|\
+       rb-750up-r2|\
+       rb-941-2nd|\
+       rb-951ui-2nd|\
+       rb-mapl-2nd)
+               return 0
+               ;;
        esac
 
        echo "Sysupgrade is not yet supported on $board."
@@ -707,14 +710,6 @@ platform_do_upgrade() {
        local board=$(ar71xx_board_name)
 
        case "$board" in
-       rb-750-r2|\
-       rb-750up-r2|\
-       rb-941-2nd|\
-       rb-951ui-2nd|\
-       rb-mapl-2nd)
-               PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=1
-               platform_do_upgrade_combined "$ARGV"
-               ;;
        all0258n)
                platform_do_upgrade_allnet "0x9f050000" "$ARGV"
                ;;

diff --git a/target/linux/ar71xx/config-4.4 b/target/linux/ar71xx/config-4.4
index 0e2d786551014c73028705cb66614ed77049b699..206ace62f730ab9295d718dfe0989eb25b4de05f 100644 (file)
--- a/target/linux/ar71xx/config-4.4
+++ b/target/linux/ar71xx/config-4.4
@@ -380,6 +380,7 @@ CONFIG_MTD_SPLIT_LZMA_FW=y
 CONFIG_MTD_SPLIT_SEAMA_FW=y
 CONFIG_MTD_SPLIT_UIMAGE_FW=y
 CONFIG_MTD_SPLIT_WRGG_FW=y
+CONFIG_MTD_SPLIT_MINOR_FW=y
 CONFIG_MTD_TPLINK_PARTS=y
 CONFIG_MYLOADER=y
 CONFIG_NEED_DMA_MAP_STATE=y

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rbspi.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rbspi.c
index b6b3338845e0ac9cc0c72dda976d62a965442246..aeeeca624394b1b2d9cb24f576da9abc2eb8fb43 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rbspi.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rbspi.c
@@ -60,7 +60,6 @@
 #define RB_ROUTERBOOT_OFFSET    0x0000
 #define RB_BIOS_SIZE            0x1000
 #define RB_SOFT_CFG_SIZE        0x1000
-#define RB_KERNEL_SIZE          (2 * 1024 * 1024)      /* 2MB kernel */
 
 /* Flash partitions indexes */
 enum {
@@ -69,8 +68,7 @@ enum {
        RBSPI_PART_BIOS,
        RBSPI_PART_RBOOT2,
        RBSPI_PART_SCONF,
-       RBSPI_PART_KERN,
-       RBSPI_PART_ROOT,
+       RBSPI_PART_FIRMW,
        RBSPI_PARTS
 };
 
@@ -79,8 +77,6 @@ static struct mtd_partition rbspi_spi_partitions[RBSPI_PARTS];
 /*
  * Setup the SPI flash partition table based on initial parsing.
  * The kernel can be at any aligned position and have any size.
- * The size of the kernel partition is the desired RB_KERNEL_SIZE
- * minus the size of the preceding partitions (128KB).
  */
 static void __init rbspi_init_partitions(const struct rb_info *info)
 {
@@ -114,16 +110,10 @@ static void __init rbspi_init_partitions(const struct rb_info *info)
        parts[RBSPI_PART_SCONF].offset = info->soft_cfg_offs;
        parts[RBSPI_PART_SCONF].size = RB_SOFT_CFG_SIZE;
 
-       parts[RBSPI_PART_KERN].name = "kernel";
-       parts[RBSPI_PART_KERN].offset = parts[RBSPI_PART_SCONF].offset
+       parts[RBSPI_PART_FIRMW].name = "firmware";
+       parts[RBSPI_PART_FIRMW].offset = parts[RBSPI_PART_SCONF].offset
                                        + parts[RBSPI_PART_SCONF].size;
-       parts[RBSPI_PART_KERN].size = RB_KERNEL_SIZE
-                                       - parts[RBSPI_PART_KERN].offset;
-
-       parts[RBSPI_PART_ROOT].name = "rootfs";
-       parts[RBSPI_PART_ROOT].offset = parts[RBSPI_PART_KERN].offset
-                                       + parts[RBSPI_PART_KERN].size;
-       parts[RBSPI_PART_ROOT].size = MTDPART_SIZ_FULL;
+       parts[RBSPI_PART_FIRMW].size = MTDPART_SIZ_FULL;
 }
 
 static struct flash_platform_data rbspi_spi_flash_data = {

diff --git a/target/linux/ar71xx/image/mikrotik.mk b/target/linux/ar71xx/image/mikrotik.mk
index c7cf15d061d14fc2944c3fc3383c96489558d7ba..9338e5f916844a3afdbfbfccd94a713fa1a39248 100644 (file)
--- a/target/linux/ar71xx/image/mikrotik.mk
+++ b/target/linux/ar71xx/image/mikrotik.mk
@@ -27,14 +27,13 @@ TARGET_DEVICES += nand-64m nand-large
 define Device/rb-nor-flash-16M
   DEVICE_TITLE := MikroTik RouterBoard with 16 MB SPI NOR flash
   DEVICE_PACKAGES := rbcfg
-  BLOCKSIZE := 64k
   IMAGE_SIZE := 16000k
   LOADER_TYPE := elf
   KERNEL_INSTALL := 1
-  KERNEL := kernel-bin | lzma | loader-kernel | kernel2minor -s 1024 -e
-  KERNEL_INITRAMFS := kernel-bin | lzma | loader-kernel
-  IMAGES := sysupgrade.bin
-  IMAGE/sysupgrade.bin = append-rootfs | pad-rootfs | combined-image | check-size $$$$(IMAGE_SIZE)
+  KERNEL := kernel-bin | lzma | loader-kernel
+  SUPPORTED_DEVICES := rb-750-r2 rb-750up-r2 rb-941-2nd rb-951ui-2nd rb-mapl-2nd
+  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 1024 -e | pad-to $$$$(BLOCKSIZE) | \
+       append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
 endef
 
 TARGET_DEVICES += rb-nor-flash-16M