[U-Boot-Users] [PATCH] ColdFire: Fix power up issue for MCF5235

Tsi-Chung Liew Tsi-Chung.Liew at freescale.com
Tue Jun 24 19:21:05 CEST 2008


From: TsiChung Liew <Tsi-Chung.Liew at freescale.com>

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew at freescale.com>
---
 board/freescale/m5235evb/m5235evb.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/board/freescale/m5235evb/m5235evb.c b/board/freescale/m5235evb/m5235evb.c
index c2c8fe8..bd8a4e5 100644
--- a/board/freescale/m5235evb/m5235evb.c
+++ b/board/freescale/m5235evb/m5235evb.c
@@ -75,9 +75,11 @@ phys_size_t initdram(int board_type)
 		sdram->dacr0 =
 		    SDRAMC_DARCn_BA(CFG_SDRAM_BASE) | SDRAMC_DARCn_CASL_C1 |
 		    SDRAMC_DARCn_CBM_CMD20 | SDRAMC_DARCn_PS_32;
+		asm("nop");
 
 		/* Initialize DMR0 */
 		sdram->dmr0 = ((dramsize - 1) & 0xFFFC0000) | SDRAMC_DMRn_V;
+		asm("nop");
 
 		/* Set IP (bit 3) in DACR */
 		sdram->dacr0 |= SDRAMC_DARCn_IP;
@@ -100,6 +102,7 @@ phys_size_t initdram(int board_type)
 
 		/* Finish the configuration by issuing the MRS. */
 		sdram->dacr0 |= SDRAMC_DARCn_IMRS;
+		asm("nop");
 
 		/* Write to the SDRAM Mode Register */
 		*(u32 *) (CFG_SDRAM_BASE + 0x400) = 0xA5A59696;
-- 
1.5.4.1





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