diff options
| 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 /board | |
| parent | 644bc7ec5cee3a93ecb3adc364be6374d3f60a27 (diff) | |
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 'board')
| -rw-r--r-- | board/freescale/ls1021aqds/ls1021aqds.c | 2 | ||||
| -rw-r--r-- | board/freescale/ls1021atwr/ls1021atwr.c | 5 |
2 files changed, 0 insertions, 7 deletions
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c index 5154a85b2d7..913dda92c5a 100644 --- a/board/freescale/ls1021aqds/ls1021aqds.c +++ b/board/freescale/ls1021aqds/ls1021aqds.c @@ -140,9 +140,7 @@ int board_early_init_f(void) struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; #ifdef CONFIG_TSEC_ENET - out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_REV); out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR); - out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_NOREV); #endif #ifdef CONFIG_FSL_IFC diff --git a/board/freescale/ls1021atwr/ls1021atwr.c b/board/freescale/ls1021atwr/ls1021atwr.c index 3e8981b39f9..3f2dc1acadb 100644 --- a/board/freescale/ls1021atwr/ls1021atwr.c +++ b/board/freescale/ls1021atwr/ls1021atwr.c @@ -255,11 +255,8 @@ int board_early_init_f(void) struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; #ifdef CONFIG_TSEC_ENET - out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_REV); out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR); out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125); - udelay(10); - out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_NOREV); #endif #ifdef CONFIG_FSL_IFC @@ -267,9 +264,7 @@ int board_early_init_f(void) #endif #ifdef CONFIG_FSL_DCU_FB - out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_REV); out_be32(&scfg->pixclkcr, SCFG_PIXCLKCR_PXCKEN); - out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_NOREV); #endif return 0; |