[U-Boot] [PATCH V3 12/18] arm: mx6: add support for Compulab cm-fx6 CoM

[Nikita Kiryanov]

Hi Igor,

On 14/08/14 10:16, Igor Grinberg wrote:
> On 08/13/14 15:55, Igor Grinberg wrote:
>> Hi Nikita,
>>
>> Several comments below in addition to Simon's.
>>
>> On 08/11/14 19:22, Nikita Kiryanov wrote:
>>> Add initial support for Compulab CM-FX6 CoM.
>>> Support includes MMC, SPI flash, and SPL with dynamic DRAM detection.
>>>
>>> Cc: Igor Grinberg <grinberg at compulab.co.il>
>>> Cc: Stefano Babic <sbabic at denx.de>
>>> Cc: Tom Rini <trini at ti.com>
>>> Cc: Marek Vasut <marex at denx.de>
>>> Acked-by: Marek Vasut <marex at denx.de>
>>> Signed-off-by: Nikita Kiryanov <nikita at compulab.co.il>
>>> ---
>
> [...]
>
>>> +#define CONFIG_EXTRA_ENV_SETTINGS \
>>> +	"kernel=uImage-cm-fx6\0" \
>>> +	"autoload=no\0" \
>>> +	"loadaddr=0x10800000\0" \
>>> +	"fdtaddr=0x11000000\0" \
>>> +	"console=ttymxc3,115200\0" \
>>> +	"ethprime=FEC0\0" \
>>> +	"bootscr=boot.scr\0" \
>>> +	"bootm_low=18000000\0" \
>>> +	"video_hdmi=mxcfb0:dev=hdmi,1920x1080M-32 at 50,if=RGB32\0" \
>>> +	"video_dvi=mxcfb0:dev=dvi,1280x800M-32 at 50,if=RGB32\0" \
>>> +	"fdtfile=cm-fx6.dtb\0" \
>>> +	"doboot=bootm ${loadaddr}\0" \
>>> +	"loadfdt=false\0" \
>>> +	"setboottypez=setenv kernel zImage-cm-fx6;" \
>>> +		"setenv doboot bootz ${loadaddr} - ${fdtaddr};" \
>>> +		"setenv loadfdt true;\0" \
>>> +	"setboottypem=setenv kernel uImage-cm-fx6;" \
>>> +		"setenv doboot bootm ${loadaddr};" \
>>> +		"setenv loadfdt false;\0"\
>>> +	"run_eboot=echo Starting EBOOT ...; "\
>>> +		"mmc dev ${mmcdev} && " \
>>> +		"mmc rescan && mmc read 10042000 a 400 && go 10042000\0" \
>>> +	"mmcdev=2\0" \
>>> +	"mmcroot=/dev/mmcblk0p2 rw rootwait\0" \
>>> +	"loadmmcbootscript=fatload mmc ${mmcdev} ${loadaddr} ${bootscr}\0" \
>>
>> Can we switch to use load instead of fatload?

Yes

>>
>>> +	"mmcbootscript=echo Running bootscript from mmc ...; "\
>>> +		"source ${loadaddr}\0" \
>>> +	"mmcargs=setenv bootargs console=${console} " \
>>> +		"root=${mmcroot} " \
>>> +		"${video}\0" \
>>> +	"mmcloadkernel=fatload mmc ${mmcdev} ${loadaddr} ${kernel}\0" \
>>> +	"mmcloadfdt=fatload mmc ${mmcdev} ${fdtaddr} ${fdtfile}\0" \
>>> +	"mmcboot=echo Booting from mmc ...; " \
>>> +		"run mmcargs; " \
>>> +		"run doboot\0" \
>>> +	"nandroot=/dev/mtdblock4 rw\0" \
>>> +	"nandrootfstype=ubifs\0" \
>>> +	"nandargs=setenv bootargs console=${console} " \
>>> +		"root=${nandroot} " \
>>> +		"rootfstype=${nandrootfstype} " \
>>> +		"${video}\0" \
>>> +	"nandloadfdt=nand read ${fdtaddr} 780000 80000;\0" \
>>> +	"nandboot=echo Booting from nand ...; " \
>>> +		"run nandargs; " \
>>> +		"nand read ${loadaddr} 0 780000; " \
>>> +		"if ${loadfdt}; then " \
>>> +			"run nandloadfdt;" \
>>> +		"fi; " \
>>> +		"run doboot\0" \
>
> I think, if we add NAND support in a separate patch, then probably
> it will be better also to add nand boot related environment stuff
> along with the NAND support.

You're right, I'll move this to the nand patch

>
>>> +	"boot=mmc dev ${mmcdev}; " \
>>> +		"if mmc rescan; then " \
>>> +			"if run loadmmcbootscript; then " \
>>> +				"run mmcbootscript;" \
>>> +			"else " \
>>> +				"if run mmcloadkernel; then " \
>>> +					"if ${loadfdt}; then " \
>>> +						"run mmcloadfdt;" \
>>> +					"fi;" \
>>> +					"run mmcboot;" \
>>> +				"fi;" \
>>> +			"fi;" \
>>> +		"fi;"
>
> Also, you add NAND boot commands neither here, nor in the NAND
> support patch. Can we have them too? Please?

Sure, in the nand patch