1.1. Partition Setup

K18 Flash partition is setup in uboot as below：

$(K18DIR)/uboot/include/configs/leo_k18_universal.h

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

/ mtd partitioning for serial NOR/NAND flash

device <spinand_mcu>, # parts = 10
17. : name size offset mask_flags
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 /

18. define MTDIDS_NOR "spi32766.1"

19. define MTDIDS_NAND "spinand_mcu"

20. define MTDPARTS_DEFAULT "mtdparts=${mtdids_default}:" \

"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：

21. partition start address

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

Partition Setup