leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mx23: SPL: Initialize DDR at 133MHz

Browse Source 
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Otavio Salvador 2013-01-11 03:19:11 +00:00 committed by Stefano Babic
parent f942f7d962
commit 1ddf386e23
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
View File

@ -83,6 +83,22 @@ static uint32_t dram_vals[] = {
0x06120612, 0x04320432, 0x04320432, 0x00040004,
0x00040004, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00010001
/*
* i.MX23 DDR at 133MHz
*/
#elif defined(CONFIG_MX23)
0x01010001, 0x00010100, 0x01000101, 0x00000001,
0x00000101, 0x00000000, 0x00010000, 0x01000001,
0x00000000, 0x00000001, 0x07000200, 0x00070202,
0x02020000, 0x04040a01, 0x00000201, 0x02040000,
0x02000000, 0x19000f08, 0x0d0d0000, 0x02021313,
0x02061521, 0x0000000a, 0x00080008, 0x00200020,
0x00200020, 0x00200020, 0x000003f7, 0x00000000,
0x00000000, 0x00000020, 0x00000020, 0x00c80000,
0x000a23cd, 0x000000c8, 0x00006665, 0x00000000,
0x00000101, 0x00040001, 0x00000000, 0x00000000,
0x00010000
#else
#error Unsupported memory initialization
#endif
@ -102,6 +118,10 @@ static void initialize_dram_values(void)
for (i = 0; i < ARRAY_SIZE(dram_vals); i++)
writel(dram_vals[i], MXS_DRAM_BASE + (4 * i));
#ifdef CONFIG_MX23
writel((1 << 24), MXS_DRAM_BASE + (4 * 8));
#endif
}
static void mxs_mem_init_clock(void)