[U-Boot] boot.bin on SD Card for SAMA5D3 Xplained

[Eugen.Hristev at microchip.com <Eugen.Hristev@microchip.com>]

On 05.12.2018 22:38, Robert Nelson wrote:
> On Wed, Dec 5, 2018 at 8:37 AM <Eugen.Hristev@microchip.com> wrote:
>>
>>
>>
>> On 05.12.2018 02:15, Daniel Evans wrote:
>>> Trying to get uboot SPL boot.bin to run on an SD card for the sama5d3 xplained board.  All I get is RomBOOT and no other messages.  I have tried throwing in a couple test pins to toggle in board_early_init_f but still not getting any debug.  I can get at91bootstrap to produce a boot.bin that works on the sama5d3 xplained so I am assuming I don’t have a bad board.  My boot partition is FAT16.  To compile I just run the following on Debian Buster :
>>>
>>> make mrproper
>>> make sama5d3_xplained_mmc_defconfig
>>> make
>>>
>>> Cross Compiler is gcc-linaro-6.4.1-2018.05-x86_64_arm-linux-gnueabihf
>>>
>>> When finished compiling I just copy the boot.bin to my BOOT partition.
>>>
>>> Has to be something obvious that I am missing.  Any insight is appreciated…
>>
>> Hello,
>>
>> Check the datasheet for sama5d3 SoC section 11.4.3. - Valid code
>> detection (my datasheet is dated 2 Feb 2016 if it helps)
>>
>> Basically the vector 6 needs to have hardcoded the binary size. Are you
>> doing that ? Otherwise the RomBOOT code will consider your binary as faulty.
>>
>> PS. make sure endianess is right, use a good hexeditor...
>>
>> Hope this helps,
>> Eugen
> 
> Okay, just finished my git bisect, this turned out to be a miss-placed
> #endif when Wenyou did the "configs: at91: Remove
> CONFIG_SYS_EXTRA_OPTIONS assignment" patch:
> 
> https://github.com/u-boot/u-boot/commit/5541543f686b43210fb92181003ff7175d4ab036#diff-651b6ffe22be4df459343a0d6d25154e

Interesting find, is this wrongly done for all the boards in the commit 
or just sama5d3_xplained ?

Feel free to submit a patch if this fixes the issue, and we will review it.

Thanks !


> 
> => RomBOOT
> <debug_uart>
> U-Boot spl 2019.01-rc1-00021-g2e2a2a5d4f-dirty (Dec 05 2018 - 14:30:22 -0600)
> Trying to boot from MMC1
> <debug_uart>
> 
> U-Boot 2019.01-rc1-00021-g2e2a2a5d4f-dirty (Dec 05 2018 - 14:30:22 -0600)
> 
> <snip>
> 
> diff --git a/include/configs/sama5d3_xplained.h
> b/include/configs/sama5d3_xplained.h
> index d0d8087ca3..f87713319d 100644
> --- a/include/configs/sama5d3_xplained.h
> +++ b/include/configs/sama5d3_xplained.h
> @@ -80,7 +80,6 @@
>   #elif CONFIG_NAND_BOOT
>   #define CONFIG_SPL_NAND_DRIVERS
>   #define CONFIG_SPL_NAND_BASE
> -#endif
>   #define CONFIG_SYS_NAND_U_BOOT_OFFS    0x40000
>   #define CONFIG_SYS_NAND_5_ADDR_CYCLE
>   #define CONFIG_SYS_NAND_PAGE_SIZE      0x800
> @@ -91,3 +90,5 @@
>   #define CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER
> 
>   #endif
> +
> +#endif
> 
> Before:
> #ifdef CONFIG_SYS_USE_MMC
> #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
> #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
> 
> #elif CONFIG_SYS_USE_NANDFLASH
> #define CONFIG_SPL_NAND_DRIVERS
> #define CONFIG_SPL_NAND_BASE
> #define CONFIG_SYS_NAND_U_BOOT_OFFS 0x40000
> #define CONFIG_SYS_NAND_5_ADDR_CYCLE
> #define CONFIG_SYS_NAND_PAGE_SIZE 0x800
> #define CONFIG_SYS_NAND_PAGE_COUNT 64
> #define CONFIG_SYS_NAND_OOBSIZE 64
> #define CONFIG_SYS_NAND_BLOCK_SIZE 0x20000
> #define CONFIG_SYS_NAND_BAD_BLOCK_POS 0x0
> #define CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER
> 
> #endif
> 
> After:
> #ifdef CONFIG_SD_BOOT
> #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
> #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
> 
> #elif CONFIG_NAND_BOOT
> #define CONFIG_SPL_NAND_DRIVERS
> #define CONFIG_SPL_NAND_BASE
> #endif
> <------------------------------------------------- WHY HERE????
> #define CONFIG_SYS_NAND_U_BOOT_OFFS 0x40000
> #define CONFIG_SYS_NAND_5_ADDR_CYCLE
> #define CONFIG_SYS_NAND_PAGE_SIZE 0x800
> #define CONFIG_SYS_NAND_PAGE_COUNT 64
> #define CONFIG_SYS_NAND_OOBSIZE 64
> #define CONFIG_SYS_NAND_BLOCK_SIZE 0x20000
> #define CONFIG_SYS_NAND_BAD_BLOCK_POS 0x0
> #define CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER
> 
> #endif
> 
> Regards,
>