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authorAlison Wang <b18965@freescale.com>2014-10-17 15:26:33 +0800
committerYork Sun <yorksun@freescale.com>2014-11-24 09:27:23 -0800
commitc207ff612903389f8b32e377fe32be43e6efd8f7 (patch)
treeaec5085a78492690ae3a46b84aaa6de15c3345e1 /board
parent644bc7ec5cee3a93ecb3adc364be6374d3f60a27 (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.c2
-rw-r--r--board/freescale/ls1021atwr/ls1021atwr.c5
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;