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| author | Jason Liu <r64343@freescale.com> | 2010-05-19 22:15:05 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2010-05-19 22:23:42 +0800 |
| commit | af46d9f54b192076c1e3096299d594e2783fc175 (patch) | |
| tree | 6c5c61d313950c0ee0e004d9635baf403664b8dd /board/freescale | |
| parent | a0e1ec967f99d08ce0a48c45a509959453e5f3a7 (diff) | |
| download | u-boot-imx-af46d9f54b192076c1e3096299d594e2783fc175.zip u-boot-imx-af46d9f54b192076c1e3096299d594e2783fc175.tar.gz u-boot-imx-af46d9f54b192076c1e3096299d594e2783fc175.tar.bz2 | |
ENGR00123630 Set ddr clk clock according to the board IDrel_imx_2.6.31_10.05.02imx_v2009.08_10.05.02
Set DDR clock to 400Mhz on MX53-EVK with DDR2 1GByte RevB
Set DDR clock to 300Mhz on MX53-EVK with DDR2 2GByte RevA1
Remove the clock dump during boot, user can use clk command to
get the clock information. Using help clk to get the command help
Signed-off-by:Jason Liu <r64343@freescale.com>
Diffstat (limited to 'board/freescale')
| -rw-r--r-- | board/freescale/mx53_evk/mx53_evk.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/board/freescale/mx53_evk/mx53_evk.c b/board/freescale/mx53_evk/mx53_evk.c index 6be0b37..98d5938 100644 --- a/board/freescale/mx53_evk/mx53_evk.c +++ b/board/freescale/mx53_evk/mx53_evk.c @@ -44,6 +44,10 @@ #include <asm/arch/mmu.h> #endif +#ifdef CONFIG_CMD_CLOCK +#include <asm/clock.h> +#endif + DECLARE_GLOBAL_DATA_PTR; static u32 system_rev; @@ -415,6 +419,25 @@ static int __print_board_info(int id0, int id1) return ret; } +static int _identify_board_fix_up(int id0, int id1) +{ + int ret = 0; + +#ifdef CONFIG_CMD_CLOCK + /* For EVK RevB, set DDR to 400MHz */ + if (id0 == 21 && id1 == 15) { + ret = clk_config(CONFIG_REF_CLK_FREQ, 400, PERIPH_CLK); + if (ret < 0) + return ret; + + ret = clk_config(CONFIG_REF_CLK_FREQ, 400, DDR_CLK); + if (ret < 0) + return ret; + } +#endif + return ret; +} + int identify_board_id(void) { int ret = 0; @@ -440,6 +463,10 @@ int identify_board_id(void) return ret; ret = __print_board_info(bd_id0, bd_id1); + if (ret < 0) + return ret; + + ret = _identify_board_fix_up(bd_id0, bd_id1); return ret; @@ -682,7 +709,7 @@ int board_late_init(void) int checkboard(void) { - printf("Board: "); + printf("Board: "); #ifdef CONFIG_I2C_MXC identify_board_id(); |