u-boot-brain/board/freescale/p1022ds
Matthew McClintock af2536088e powerpc/p1022ds: add support for SPI and SD boot
Add TLB mappings, board target options, and configuration items
need for SPI/SD boot.

Since P1022DS RevB board, the NOR flash have been changed to 16 bit/28bit
address flash, therefore, when SDHC/ESPI booting and access to eLBC,
the PMUXCR[0~1] must be set to 10b, and PMUXCR[9~10] must be set to
00b for them.

Configure the PX_BRDCFG0[0~1] to 10b which is connected to
SPI devices as SPI_CS(0:3)_B.

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Jiang Yutang <b14898@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-08-08 17:13:37 -05:00
..
ddr.c powerpc/mpc8xxx: Merge entries in DDR speed table 2011-10-09 17:57:53 -05:00
diu.c GCC4.6: Squash warnings in diu.c 2011-10-27 23:54:01 +02:00
law.c powerpc: add support for the Freescale P1022DS reference board 2010-07-16 10:55:10 -05:00
Makefile punt unused clean/distclean targets 2011-10-15 22:20:36 +02:00
p1022ds.c powerpc/p1022ds: add support for SPI and SD boot 2012-08-08 17:13:37 -05:00
README doc: cleanup - move board READMEs into respective board directories 2012-07-29 15:42:02 +02:00
tlb.c powerpc/p1022ds: add support for SPI and SD boot 2012-08-08 17:13:37 -05:00

Overview
--------
P1022ds is a Low End Dual core platform supporting the P1022 processor
of QorIQ series. P1022 is an e500 based dual core SOC.


Pin Multiplex(hwconfig setting)
-------------------------------
Add the environment 'usb2', 'audclk' and 'tdm' to support pin multiplex
via hwconfig, i.e:
'setenv hwconfig usb2' to enable USB2 and disable eTsec2
'setenv hwconfig tdm' to enable TDM and disable Audio
'setenv hwconfig audclk:12' to enable Audio(codec clock sources is 12MHz)
 and disable TDM
'setenv hwconfig 'usb2;tdm' to enable USB2 and TDM, disable eTsec2 and Audio
'setenv hwconfig 'usb2;audclk:11' to enable USB2 and Audio(codec clock sources
 is 11MHz), disable eTsec2 and TDM

Warning: TDM and AUDIO can not enable simultaneous !
and AUDIO codec clock sources only setting as 11MHz or 12MHz !
'setenv hwconfig 'audclk:12;tdm'	--- error !
'setenv hwconfig 'audclk:11;tdm'	--- error !
'setenv hwconfig 'audclk:10'		--- error !