diff options
| author | Markus Klotzbuecher <mk@denx.de> | 2006-03-24 14:35:25 +0100 |
|---|---|---|
| committer | Markus Klotzbücher <mk@pollux.denx.de> | 2006-03-24 14:35:25 +0100 |
| commit | 40b0bafbb282a8fd2d705be0623948ff551bf26a (patch) | |
| tree | e23f1097ef1528e866ac988f6677e8008c539cb0 /cpu/pxa/start.S | |
| parent | ba70d6a4170ebbec5513f01ceae66a200102ba9a (diff) | |
| download | u-boot-imx-40b0bafbb282a8fd2d705be0623948ff551bf26a.zip u-boot-imx-40b0bafbb282a8fd2d705be0623948ff551bf26a.tar.gz u-boot-imx-40b0bafbb282a8fd2d705be0623948ff551bf26a.tar.bz2 | |
Added config options CFG_MONAHANS_RUN_MODE_OSC_RATIO and
CFG_MONAHANS_TURBO_RUN_MODE_RATIO for configuring the Monahans core
frequency.
Diffstat (limited to 'cpu/pxa/start.S')
| -rw-r--r-- | cpu/pxa/start.S | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/cpu/pxa/start.S b/cpu/pxa/start.S index 9541c9b..ffaa30f 100644 --- a/cpu/pxa/start.S +++ b/cpu/pxa/start.S @@ -190,6 +190,14 @@ OSTIMER_BASE: .word 0x40a00000 #define OIER 0x1C /* Clock Manager Registers */ +#ifdef CONFIG_CPU_MONAHANS +# ifndef CFG_MONAHANS_RUN_MODE_OSC_RATIO +# error "You have to define CFG_MONAHANS_RUN_MODE_OSC_RATIO!!" +# endif +# ifndef CFG_MONAHANS_TURBO_RUN_MODE_RATIO +# define CFG_MONAHANS_TURBO_RUN_MODE_RATIO 0x1 +# endif +#else /* ! CONFIG_CPU_MONAHANS */ #ifdef CFG_CPUSPEED CC_BASE: .word 0x41300000 #define CCCR 0x00 @@ -197,6 +205,7 @@ cpuspeed: .word CFG_CPUSPEED #else #error "You have to define CFG_CPUSPEED!!" #endif +#endif /* CONFIG_CPU_MONAHANS */ /* takes care the CP15 update has taken place */ .macro CPWAIT reg @@ -233,9 +242,13 @@ cpu_init_crit: str r2, [r1] #endif -#ifndef CONFIG_CPU_MONAHANS + /* set clock speed */ +#ifdef CONFIG_CPU_MONAHANS + ldr r0, =ACCR + ldr r1, =(((CFG_MONAHANS_TURBO_RUN_MODE_RATIO<<8) & ACCR_XN_MASK) | (CFG_MONAHANS_RUN_MODE_OSC_RATIO & ACCR_XL_MASK)) + str r1, [r0] +#else /* ! CONFIG_CPU_MONAHANS */ #ifdef CFG_CPUSPEED - /* set clock speed tbd@mk: required for monahans? */ ldr r0, CC_BASE ldr r1, cpuspeed str r1, [r0, #CCCR] |