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authorTsiChung Liew <Tsi-Chung.Liew@freescale.com>2008-07-23 20:38:53 -0500
committerJohn Rigby <jrigby@freescale.com>2008-08-14 12:31:55 -0600
commit9f751551456828b2d0ff417f10959fb0c7110bd0 (patch)
tree9400ee01bbef8c6d3dde6249bda85e6fc8405c4f /board/freescale/m54455evb/m54455evb.c
parenta7323bba229203aae2604afde131ab47bad4eadc (diff)
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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.c14
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);
};