Partition Setup
- 2. define KERNEL_SIZE_NAND 0x500000
- 3. define CONFIG_KERNEL_OFFS 0x500000
- 4. define CONFIG_KERNEL_SIZE KERNEL_SIZE_NAND
- 5. define CONFIG_FDT_ADDR 0x10000100
- 6. define CONFIG_FDT_OFFS 0x280000
- 7. define CONFIG_FDT_SIZE 0x80000
- 8. define CONFIG_OTA_OFFS 0xA00000
- 9. define CONFIG_OTA_SIZE 0x800000
- 10. define CONFIG_FDT_IMAGE "leo_k18_universal.dtb"
- 11. define CONFIG_ROOTFS_OFFS 0x1200000
- 12. define CONFIG_ROOTFS_SIZE 0x3200000
- 13. define CONFIG_ROOTFS_POS 9
- 14. define CONFIG_MEM_SIZE 127
- 15. define CONFIG_PSTORE_MEM_ADDRESS 0x17f00000
- 16. define CONFIG_PSTORE_MEM_SIZE 0x100000
- 17. : name size offset mask_flags
- 18. define MTDIDS_NOR "spi32766.1"
- 19. define MTDIDS_NAND "spinand_mcu"
- 20. define MTDPARTS_DEFAULT "mtdparts=${mtdids_default}:" \
- 21. partition start address
1.1. Partition Setup
K18 Flash partition is setup in uboot as below：
$(K18DIR)/uboot/include/configs/leo_k18_universal.h
/ mtd partitioning for serial NOR/NAND flash
*
device <spinand_mcu>, # parts = 10
0: mcu 0x00100000 0x00000000 0
1: uboot-stage1 0x00040000 0x00100000 0
2: uboot_env 0x00040000 0x00140000 0
3: uboot-stage2 0x00080000 0x00180000 0
4: boot_music 0x00080000 0x00200000 0
5: kernel_dtb 0x00080000 0x00280000 0
6: misc 0x00200000 0x00300000 0
7: kernel 0x00500000 0x00500000 0
8: ota 0x00800000 0x00A00000 0
9: rootfs 0x03C00000 0x01200000 0
10: data 0x03200000 0x04E00000 0 /
"1m(mcu)," \
"256k(uboot_stage1)," \
"256k(uboot_env)," \
"512k(uboot_stage2)," \
"512k(boot_music)," \
"${fdt_size}@${fdt_offs}(kernel_dtb)," \
"2m(misc)," \
"${kernel_size}@${kernel_offs}(kernel)," \
"${ota_size}@${ota_offs}(ota_kernel)," \
"${rootfs_size}@${rootfs_offs}(rootfs)," \
"60m(data)"
Note:
When partition is modified, the image burning script file $(K18DIR)/openwrt/target/linux/leo/k18-universal/download.sh also need be modified for partition start offset changing：
MCU_OFFSET=0x0
SPL_OFFSET=0x100000
UBOOT_OFFSET=0x180000
BOOTMUSIC_OFFSET=0x280000
KERNEL_DTB_OFFSET=0x300000
MISC_OFFSET=0x380000
KERNEL_OFFSET=0x480000
OTA_OFFSET=0x980000
ROOTFS_OFFSET=0x1180000
DATA_OFFSET=0x3A00000
FLASH_SIZE=0x8000000