From 4cb4e654cafabaa1ac180d37b00c8f6095dae9c9 Mon Sep 17 00:00:00 2001 From: TsiChung Liew Date: Mon, 11 Aug 2008 15:54:25 +0000 Subject: ColdFire: Multiple fixes for M5282EVB Incorrect CFG_HZ value, change 1000000 to 1000. Rename #waring to #warning. RAMBAR1 uses twice in start.S, rename the later to FLASHBAR. Insert nop for DRAM setup. And, env_offset in linker file. Signed-off-by: TsiChung Liew --- board/freescale/m5282evb/m5282evb.c | 7 +++++++ board/freescale/m5282evb/u-boot.lds | 3 +-- 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'board') diff --git a/board/freescale/m5282evb/m5282evb.c b/board/freescale/m5282evb/m5282evb.c index 50e5e77..31d6923 100644 --- a/board/freescale/m5282evb/m5282evb.c +++ b/board/freescale/m5282evb/m5282evb.c @@ -51,6 +51,7 @@ phys_size_t initdram (int board_type) MCFSDRAMC_DCR = (0 | MCFSDRAMC_DCR_RTIM_6 | MCFSDRAMC_DCR_RC((15 * dramclk)>>4)); + asm("nop"); /* Initialize DACR0 */ MCFSDRAMC_DACR0 = (0 @@ -58,14 +59,17 @@ phys_size_t initdram (int board_type) | MCFSDRAMC_DACR_CASL(1) | MCFSDRAMC_DACR_CBM(3) | MCFSDRAMC_DACR_PS_32); + asm("nop"); /* Initialize DMR0 */ MCFSDRAMC_DMR0 = (0 | ((dramsize - 1) & 0xFFFC0000) | MCFSDRAMC_DMR_V); + asm("nop"); /* Set IP (bit 3) in DACR */ MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP; + asm("nop"); /* Wait 30ns to allow banks to precharge */ for (i = 0; i < 5; i++) { @@ -74,9 +78,11 @@ phys_size_t initdram (int board_type) /* Write to this block to initiate precharge */ *(u32 *)(CFG_SDRAM_BASE) = 0xA5A59696; + asm("nop"); /* Set RE (bit 15) in DACR */ MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE; + asm("nop"); /* Wait for at least 8 auto refresh cycles to occur */ for (i = 0; i < 2000; i++) { @@ -85,6 +91,7 @@ phys_size_t initdram (int board_type) /* Finish the configuration by issuing the IMRS. */ MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IMRS; + asm("nop"); /* Write to the SDRAM Mode Register */ *(u32 *)(CFG_SDRAM_BASE + 0x400) = 0xA5A59696; diff --git a/board/freescale/m5282evb/u-boot.lds b/board/freescale/m5282evb/u-boot.lds index dd2666b..96fde65 100644 --- a/board/freescale/m5282evb/u-boot.lds +++ b/board/freescale/m5282evb/u-boot.lds @@ -60,9 +60,8 @@ SECTIONS lib_generic/string.o (.text) lib_generic/vsprintf.o (.text) lib_generic/crc32.o (.text) - lib_generic/zlib.o (.text) -/* . = env_offset; */ + . = env_offset; common/environment.o(.text) *(.text) -- cgit v1.1