[U-Boot] [PATCH 8/9][v2] armv8: ls1012a: Add support of ls1012aqds board

[Prabhakar Kushwaha]

> -----Original Message-----
> From: Alexander Graf [mailto:agraf at suse.de]
> Sent: Thursday, May 12, 2016 3:37 AM
> To: york sun; Prabhakar Kushwaha; u-boot at lists.denx.de
> Cc: Pratiyush Srivastava; Abhimanyu Saini
> Subject: Re: [U-Boot] [PATCH 8/9][v2] armv8: ls1012a: Add support of
> ls1012aqds board
> 
> 
> 
> On 11.05.16 17:59, York Sun wrote:
> > On 05/11/2016 12:30 AM, Prabhakar Kushwaha wrote:
> >> QorIQ LS1012A Development System (LS1012AQDS) is a high-performance
> >> development platform, with a complete debugging environment.
> >> The LS1012AQDS board supports the QorIQ LS1012A processor and is
> >> optimized to support the high-bandwidth DDR3L memory and a full
> >> complement of high-speed SerDes ports.
> >>
> >> Signed-off-by: Calvin Johnson <calvin.johnson at nxp.com>
> >> Signed-off-by: Pratiyush Mohan Srivastava
> >> <pratiyush.srivastava at nxp.com>
> >> Signed-off-by: Abhimanyu Saini <abhimanyu.saini at nxp.com>
> >> Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>
> >> ---
> 
> [...]
> 
> >> +/* Initial environment variables */
> >> +#define CONFIG_EXTRA_ENV_SETTINGS		\
> >> +	"initrd_high=0xffffffff\0"		\
> >> +	"verify=no\0"				\
> >> +	"hwconfig=fsl_ddr:bank_intlv=auto\0"	\
> >> +	"loadaddr=0x80100000\0"			\
> >> +	"kernel_addr=0x100000\0"		\
> >> +	"ramdisk_addr=0x800000\0"		\
> >> +	"ramdisk_size=0x2000000\0"		\
> >> +	"fdt_high=0xffffffffffffffff\0"		\
> >> +	"initrd_high=0xffffffffffffffff\0"	\
> >> +	"kernel_start=0xa00000\0"		\
> >> +	"kernel_load=0xa0000000\0"		\
> >> +	"kernel_size=0x2800000\0"		\
> >> +	"console=ttyAMA0,38400n8\0"
> >> +
> >> +#define CONFIG_BOOTARGS		"console=ttyS0,115200
> root=/dev/ram0 " \
> >> +				"earlycon=uart8250,mmio,0x21c0500"
> >> +#define CONFIG_BOOTCOMMAND		"sf probe 0:0; sf read
> $kernel_load "\
> >> +					"$kernel_start $kernel_size && "\
> 
> Is SPI Flash the only boot method envisioned for these system? 


SPI flash is only boot source in LS1012A

> If not, wouldn't it make sense to make use of the distro boot framework?
> 

Will it be possible to share more details on this. 
It can be used for other SoC having more than one boot-source

--prabhakar