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| author | TsiChung Liew <Tsi-Chung.Liew@freescale.com> | 2008-07-23 20:38:53 -0500 |
|---|---|---|
| committer | John Rigby <jrigby@freescale.com> | 2008-08-14 12:31:55 -0600 |
| commit | 9f751551456828b2d0ff417f10959fb0c7110bd0 (patch) | |
| tree | 9400ee01bbef8c6d3dde6249bda85e6fc8405c4f /board/freescale/m54455evb/m54455evb.c | |
| parent | a7323bba229203aae2604afde131ab47bad4eadc (diff) | |
| download | u-boot-imx-9f751551456828b2d0ff417f10959fb0c7110bd0.zip u-boot-imx-9f751551456828b2d0ff417f10959fb0c7110bd0.tar.gz u-boot-imx-9f751551456828b2d0ff417f10959fb0c7110bd0.tar.bz2 | |
ColdFire: Implement SBF feature for M5445EVB
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Diffstat (limited to 'board/freescale/m54455evb/m54455evb.c')
| -rw-r--r-- | board/freescale/m54455evb/m54455evb.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/board/freescale/m54455evb/m54455evb.c b/board/freescale/m54455evb/m54455evb.c index 3c7b350..4f02121 100644 --- a/board/freescale/m54455evb/m54455evb.c +++ b/board/freescale/m54455evb/m54455evb.c @@ -39,9 +39,17 @@ int checkboard(void) phys_size_t initdram(int board_type) { + u32 dramsize; +#ifdef CONFIG_CF_SBF + /* + * Serial Boot: The dram is already initialized in start.S + * only require to return DRAM size + */ + dramsize = CFG_SDRAM_SIZE * 0x100000 >> 1; +#else volatile sdramc_t *sdram = (volatile sdramc_t *)(MMAP_SDRAM); volatile gpio_t *gpio = (volatile gpio_t *)(MMAP_GPIO); - u32 dramsize, i; + u32 i; dramsize = CFG_SDRAM_SIZE * 0x100000 >> 1; @@ -51,7 +59,7 @@ phys_size_t initdram(int board_type) } i--; - gpio->mscr_sdram = 0xAA; + gpio->mscr_sdram = CFG_SDRAM_DRV_STRENGTH; sdram->sdcs0 = (CFG_SDRAM_BASE | i); sdram->sdcs1 = (CFG_SDRAM_BASE1 | i); @@ -80,7 +88,7 @@ phys_size_t initdram(int board_type) sdram->sdcr = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000c00; udelay(100); - +#endif return (dramsize << 1); }; |