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| author | Alison Wang <b18965@freescale.com> | 2014-10-17 15:26:33 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-11-24 09:27:23 -0800 |
| commit | c207ff612903389f8b32e377fe32be43e6efd8f7 (patch) | |
| tree | aec5085a78492690ae3a46b84aaa6de15c3345e1 /common/cmd_fdt.c | |
| parent | 644bc7ec5cee3a93ecb3adc364be6374d3f60a27 (diff) | |
| download | u-boot-imx-c207ff612903389f8b32e377fe32be43e6efd8f7.zip u-boot-imx-c207ff612903389f8b32e377fe32be43e6efd8f7.tar.gz u-boot-imx-c207ff612903389f8b32e377fe32be43e6efd8f7.tar.bz2 | |
arm: ls102xa: Remove bit reversing for SCFG registers
SCFG_SCFGREVCR is SCFG bit reverse register. This register
must be written with 0xFFFFFFFF before writing to any other
SCFG register. Then other SCFG register could be written in
big-endian mode.
Address: 157_0000h base + 200h offset = 157_0200h
Bit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15|16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
W/R SCFGREV
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0-31
SCFGREV SCFG Bit Reverse Control Filed
32'h 0000_0000 - No bit reverse is applied
32'h FFFF_FFFF - Bit reverse is applied; so 31:0 will be stored/read as
0:31
This patch removes the bit reversing for SCFG registers in
u-boot. It will be implemented through PBI commands in RCW
.pbi
write 0x570200, 0xffffffff
.end
So other SCFG register could be written in big-endian mode
in u-boot or kernel directly.
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'common/cmd_fdt.c')
0 files changed, 0 insertions, 0 deletions