I would like to use my nor as a raw flash, but I would like ubi/ubifs on my nand. I have both a custom p1020 and p2020 board, and I have the p1020rdb and p2020rdb eval boards.

I tried to add ubifs support on 2011.06:

--------------------------------8<-------------------------------------- diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h index 59f9755..5aac92f 100644 --- a/include/configs/P1_P2_RDB.h +++ b/include/configs/P1_P2_RDB.h @@ -578,6 +578,14 @@ extern unsigned long get_board_sys_clk(unsigned long dummy); #define CONFIG_CMD_PCI #endif

+#define CONFIG_CMD_MTDPARTS +#define CONFIG_MTD_DEVICE +#define CONFIG_MTD_PARTITIONS +#define CONFIG_LZO +#define CONFIG_RBTREE +#define CONFIG_CMD_UBI +#define CONFIG_CMD_UBIFS + #undef CONFIG_WATCHDOG /* watchdog disabled */

#define CONFIG_MMC 1 --------------------------------8<--------------------------------------

but this fails during the final link with: /opt/WG/ppc-linux26-eglibc212/bin/ppc-ld: section .bootpg loaded at [effff000,effff237] overlaps section .rodata loaded at [efff1e94,f0007bc8] /opt/WG/ppc-linux26-eglibc212/bin/ppc-ld: u-boot: section .bootpg vma 0xeffff000 overlaps previous sections /opt/WG/ppc-linux26-eglibc212/bin/ppc-ld: u-boot: section .resetvec vma 0xeffffffc overlaps previous sections /opt/WG/ppc-linux26-eglibc212/bin/ppc-ld: u-boot: section .reloc vma 0xf0007c00 overlaps previous sections /opt/WG/ppc-linux26-eglibc212/bin/ppc-ld: u-boot: section .data vma 0xf000bf88 overlaps previous sections /opt/WG/ppc-linux26-eglibc212/bin/ppc-ld: u-boot: section .u_boot_cmd vma 0xf00105f4 overlaps previous sections

on my custom boards, I don't see these errors, because a lot of things are disabled (no mmc, no e1000 driver, and a few differences in memory layout, and larger nand (512M) and smaller flash (2M)). But when I try to boot the u-boot on my custom board that is able compile with the above patch, it doens't boot.

I removed all of the defines and started adding one define at a time, and the board stopped booting when I added CONFIG_CMD_UBIFS. I currently don't have the jtag (freescale cw usbtap) working yet, but I guess my questions are:

1) do I just need to disable some features I don't need for the p1020rdb/p2020rdb to get more room for ubifs to get it to build with 2011.06?

2) How can I figure out why adding CONFIG_CMD_UBIFS makes my custom board not boot. Is there some spot that I can insert a printf early to find out if it is even getting uboot from the text_base?

-Bryan