[U-Boot] [PATCH 5/5] port beaglebones to use generic distro configs

[Dennis Gilmore <dennis@ausil.us>]

> Signed-off-by: Dennis Gilmore <dennis@ausil.us>
> ---
>  include/configs/am335x_evm.h | 23 +++++++++++++----------
>  1 file changed, 13 insertions(+), 10 deletions(-)
> 
> diff --git a/include/configs/am335x_evm.h
> b/include/configs/am335x_evm.h index d75df92..86623b1 100644
> --- a/include/configs/am335x_evm.h
> +++ b/include/configs/am335x_evm.h
> @@ -56,11 +56,14 @@
>  
>  #ifndef CONFIG_SPL_BUILD
>  #define CONFIG_EXTRA_ENV_SETTINGS \
> -	"loadaddr=0x80200000\0" \
> -	"fdtaddr=0x80F80000\0" \
> +	"loadaddr=0x81000000\0" \
> +	"pxefile_addr_r=0x81300000\0" \
> +	"kernel_addr_r=0x81400000\0" \
> +	"ramdisk_addr_r=0x83400000\0" \
> +	"fdt_addr_r=0x81100000\0" \
> +	"fdt_addr=0x81200000\0" \
>  	"fdt_high=0xffffffff\0" \
>  	"boot_fdt=try\0" \
> -	"rdaddr=0x81000000\0" \
>  	"bootpart=0:2\0" \
>  	"bootdir=/boot\0" \
>  	"bootfile=zImage\0" \
> @@ -76,7 +79,7 @@
>  	"nfsopts=nolock\0" \
>  	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}"
> \ "::off\0" \
> -	"ramroot=/dev/ram0 rw ramdisk_size=65536
> initrd=${rdaddr},64M\0" \
> +	"ramroot=/dev/ram0 rw ramdisk_size=65536
> initrd=${ramdisk_addr_r},64M\0" \ "ramrootfstype=ext2\0" \
>  	"mmcargs=setenv bootargs console=${console} " \
>  		"${optargs} " \
> @@ -105,13 +108,13 @@
>  		"${optargs} " \
>  		"root=${ramroot} " \
>  		"rootfstype=${ramrootfstype}\0" \
> -	"loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
> +	"loadramdisk=load mmc ${mmcdev} ${ramdisk_addr_r}
> ramdisk.gz\0" \ "loadimage=load mmc ${bootpart} ${loadaddr}
> ${bootdir}/${bootfile}\0" \
> -	"loadfdt=load mmc ${bootpart} ${fdtaddr}
> ${bootdir}/${fdtfile}\0" \
> +	"loadfdt=load mmc ${bootpart} ${fdt_addr_r}
> ${bootdir}/${fdtfile}\0" \ "mmcloados=run mmcargs; " \
>  		"if test ${boot_fdt} = yes || test ${boot_fdt} =
> try; then " \ "if run loadfdt; then " \
> -				"bootz ${loadaddr} - ${fdtaddr}; " \
> +				"bootz ${loadaddr} - ${fdt_addr_r};
> " \ "else " \
>  				"if test ${boot_fdt} = try; then " \
>  					"bootz; " \
> @@ -146,12 +149,12 @@
>  		"setenv autoload no; " \
>  		"dhcp; " \
>  		"tftp ${loadaddr} ${bootfile}; " \
> -		"tftp ${fdtaddr} ${fdtfile}; " \
> +		"tftp ${fdt_addr_r} ${fdtfile}; " \
>  		"run netargs; " \
> -		"bootz ${loadaddr} - ${fdtaddr}\0" \
> +		"bootz ${loadaddr} - ${fdt_addr_r}\0" \
>  	"ramboot=echo Booting from ramdisk ...; " \
>  		"run ramargs; " \
> -		"bootz ${loadaddr} ${rdaddr} ${fdtaddr}\0" \
> +		"bootz ${loadaddr} ${ramdisk_addr_r}
> ${fdt_addr_r}\0" \ "findfdt="\
>  		"if test $board_name = A335BONE; then " \
>  			"setenv fdtfile am335x-bone.dtb; fi; " \

we are not enabling extlinux here right now because of how we have to
do partitioning.  though it is a solvable problem. Because the MLO only
reads from fat we have a 20M fat partition that holds MLO u-boot.img
and a uEnv.txt file. what I really want to do is teach the MLO to load
u-boot.img from either ext2 or fat and use raw space for the MLO so
then we can just go to standard partitioning.

Dennis