[U-Boot] [PATCH 3/3] mx28evk: extend default environment

[Marek Vasut]

Dear Otavio Salvador,

> The environment has been based on mx53loco and m28evk but keeping the
> possibility to easy change the default console device as Freescale and
> mainline kernels differ on the device name.

FSL kernel is dumb :-(

But I like this patch. On the other hand, can't this be made even more generic 
so everyone can use such a nice unified env?

> 
> Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Stefano Babic <sbabic at denx.de>
> Cc: Wolfgang Denk <wd at denx.de>
> Cc: Fabio Estevam <fabio.estevam at freescale.com>
> ---
>  include/configs/mx28evk.h |   83
> ++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 75
> insertions(+), 8 deletions(-)
> 
> diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
> index e98a746..6c2bf5f 100644
> --- a/include/configs/mx28evk.h
> +++ b/include/configs/mx28evk.h
> @@ -234,7 +234,6 @@
>  #define CONFIG_SETUP_MEMORY_TAGS
>  #define CONFIG_BOOTDELAY	3
>  #define CONFIG_BOOTFILE	"uImage"
> -#define CONFIG_BOOTCOMMAND	"run bootcmd_net"
>  #define CONFIG_LOADADDR	0x42000000
>  #define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
>  #define CONFIG_OF_LIBFDT
> @@ -243,13 +242,81 @@
>   * Extra Environments
>   */
>  #define CONFIG_EXTRA_ENV_SETTINGS \
> -	"console_fsl=console=ttyAM0" \
> -	"console_mainline=console=ttyAMA0" \
> -	"netargs=setenv bootargs console=${console_mainline}" \
> +	"update_nand_full_filename=u-boot.nand\0" \
> +	"update_nand_firmware_filename=u-boot.sb\0"	\
> +	"update_sd_firmware_filename=u-boot.sd\0" \
> +	"update_nand_firmware_maxsz=0x100000\0"	\
> +	"update_nand_stride=0x40\0"	/* MX28 datasheet ch. 12.12 */ \
> +	"update_nand_count=0x4\0"	/* MX28 datasheet ch. 12.12 */ \
> +	"update_nand_get_fcb_size="	/* Get size of FCB blocks */ \
> +		"nand device 0 ; " \
> +		"nand info ; " \
> +		"setexpr fcb_sz ${update_nand_stride} * ${update_nand_count};" \
> +		"setexpr update_nand_fcb ${fcb_sz} * ${nand_writesize}\0" \
> +	"update_nand_full="		    /* Update FCB, DBBT and FW */ \
> +		"if tftp ${update_nand_full_filename} ; then " \
> +		"run update_nand_get_fcb_size ; " \
> +		"nand scrub -y 0x0 ${filesize} ; " \
> +		"nand write.raw ${loadaddr} 0x0 ${update_nand_fcb} ; " \
> +		"setexpr update_off ${loadaddr} + ${update_nand_fcb} ; " \
> +		"setexpr update_sz ${filesize} - ${update_nand_fcb} ; " \
> +		"nand write ${update_off} ${update_nand_fcb} ${update_sz} ; " \
> +		"fi\0" \
> +	"update_nand_firmware="		/* Update only firmware */ \
> +		"if tftp ${update_nand_firmware_filename} ; then " \
> +		"run update_nand_get_fcb_size ; " \
> +		"setexpr fcb_sz ${update_nand_fcb} * 2 ; " /* FCB + DBBT */ \
> +		"setexpr fw_sz ${update_nand_firmware_maxsz} * 2 ; " \
> +		"setexpr fw_off ${fcb_sz} + ${update_nand_firmware_maxsz};" \
> +		"nand erase ${fcb_sz} ${fw_sz} ; " \
> +		"nand write ${loadaddr} ${fcb_sz} ${filesize} ; " \
> +		"nand write ${loadaddr} ${fw_off} ${filesize} ; " \
> +		"fi\0" \
> +	"update_sd_firmware="		/* Update the SD firmware partition */ \
> +		"if mmc rescan ; then "	\
> +		"if tftp ${update_sd_firmware_filename} ; then " \
> +		"setexpr fw_sz ${filesize} / 0x200 ; "	/* SD block size */ \
> +		"setexpr fw_sz ${fw_sz} + 1 ; "	\
> +		"mmc write ${loadaddr} 0x800 ${fw_sz} ; " \
> +		"fi ; "	\
> +		"fi\0" \
> +	"script=boot.scr\0"	\
> +	"uimage=uImage\0" \
> +	"console_fsl=ttyAM0\0" \
> +	"console_mainline=ttyAMA0\0" \
> +	"console=${console_mainline}\0" \
> +	"mmcdev=0\0" \
> +	"mmcpart=2\0" \
> +	"mmcroot=/dev/mmcblk0p3 rw\0" \
> +	"mmcrootfstype=ext3 rootwait\0"	\
> +	"mmcargs=setenv bootargs console=${console},${baudrate} " \
> +		"root=${mmcroot} " \
> +		"rootfstype=${mmcrootfstype}\0"	\
> +	"loadbootscript="  \
> +		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
> +	"bootscript=echo Running bootscript from mmc ...; "	\
> +		"source\0" \
> +	"loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
> +	"mmcboot=echo Booting from mmc ...; " \
> +		"run mmcargs; "	\
> +		"bootm\0" \
> +	"netargs=setenv bootargs console=ttymxc0,${baudrate} " \
>  		"root=/dev/nfs " \
> -		"ip=dhcp nfsroot=${serverip}:${nfsroot}\0" \
> -	"bootcmd_net=echo Booting from net ...; " \
> -		"run netargs; " \
> -		"dhcp ${uimage}; bootm\0" \
> +		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
> +	"netboot=echo Booting from net ...; " \
> +		"run netargs; "	\
> +		"dhcp ${uimage}; bootm\0"
> +
> +#define CONFIG_BOOTCOMMAND \
> +	"if mmc rescan ${mmcdev}; then " \
> +		"if run loadbootscript; then " \
> +			"run bootscript; " \
> +		"else " \
> +			"if run loaduimage; then " \
> +				"run mmcboot; " \
> +			"else run netboot; " \
> +			"fi; " \
> +		"fi; " \
> +	"else run netboot; fi"
> 
>  #endif /* __MX28EVK_CONFIG_H__ */

Best regards,
Marek Vasut