[U-Boot] [PATCH] board/ls2080qds: add the procedure to deply QSPI image.

[Yao Yuan]

On 10/11/2016 11:04 PM, york sun wrote:
> On 10/10/2016 11:04 PM, Yuan Yao wrote:
> > From: Yuan Yao <yao.yuan at nxp.com>
> >
> > Signed-off-by: Yuan Yao <yao.yuan at nxp.com>
> > ---
> >  board/freescale/ls2080aqds/README | 35
> > +++++++++++++++++++++++++++++++++++
> >  1 file changed, 35 insertions(+)
> >
> > diff --git a/board/freescale/ls2080aqds/README
> > b/board/freescale/ls2080aqds/README
> > index f288750..0f7446a 100644
> > --- a/board/freescale/ls2080aqds/README
> > +++ b/board/freescale/ls2080aqds/README
> > @@ -188,3 +188,38 @@ DPMAC14 -> PHY4-P1
> >  DPMAC15 -> PHY4-P2
> >  DPMAC16 -> PHY4-P3
> >
> > +
> > +Booting from QSPI
> > +-------------------
> > +Booting from QSPI requires two images, RCW and u-boot-dtb.bin.
> > +The difference between QSPI boot RCW image and NOR boot image is the
> > +PBI command sequence. Below is the setting for PBI commands for QDS
> > +which boot on QSPI flash device.
> > +
> > +1) CCSR 4-byte write to 0x00e00404, data=0x00000000
> > +2) CCSR 4-byte write to 0x00e00400, data=0x20010000 The above two
> > +commands set bootloc register to 0x00000000_20010000 where the u-boot
> > +code will be running in QSPI flash.
> > +
> > +RCW image should be written to the beginning of QSPI flash device.
> > +Example of using u-boot command
> > +
> > +=> sf probe 0:0
> > +SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64
> > +KiB, total 32 MiB => sf erase 0 +<size of rcw image>
> > +SF: 65536 bytes @ 0x0 Erased: OK
> > +=> sf write <rcw image in memory> 0 <size of rcw image>
> > +SF: 164 bytes @ 0x0 Written: OK
> > +
> > +To get the QSPI image, build u-boot with QSPI config, for example,
> > +ls2080aqds_qspi_defconfig. The image needed is u-boot-dtb.bin.
> > +The u-boot image should be written to 0x10000.
> > +
> > +=> sf probe 0:0
> > +SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64
> > +KiB, total 32 MiB => sf erase 10000 +<size of u-boot image>
> > +SF: 589824 bytes @ 0x10000 Erased: OK => sf write <u-boot image in
> > +memory> 10000 <size of u-boot image>
> > +SF: 580966 bytes @ 0x10000 Written: OK
> > +
> > +With these two images in QSPI flash device, the board can boot from QSPI.
> >
> 
> Yuan Yao,
> 
> I think the procedure can be applied to many of our boards with QSPI, right? It
> may be better to move this information out of ls2080aqds.
> 

Hi York,

Yes, but a little difference for "CCSR  write" for different boards.
But the "CCSR write" should be wrote into uboot code or cw.
So, should I remove the notes for "CCSR  write" and then move this information for
 all the boards which support QSPI boot?