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| author | wdenk <wdenk> | 2003-12-27 19:29:48 +0000 | 
|---|---|---|
| committer | wdenk <wdenk> | 2003-12-27 19:29:48 +0000 | 
| commit | a2f34be7dd3881c6c0effdc196f030fe328ec12b (patch) | |
| tree | d688c8eeb61c70c3b3923302385c24f0cc54e1d8 | |
| parent | 7cb22f97ee41f344cf6542c077abf124c38ec5c6 (diff) | |
| download | olio-uboot-2014.01-a2f34be7dd3881c6c0effdc196f030fe328ec12b.tar.xz olio-uboot-2014.01-a2f34be7dd3881c6c0effdc196f030fe328ec12b.zip | |
Cleanup
| -rw-r--r-- | cpu/mips/incaip_clock.c | 89 | 
1 files changed, 42 insertions, 47 deletions
| diff --git a/cpu/mips/incaip_clock.c b/cpu/mips/incaip_clock.c index 4ae06b72c..a042b8a6f 100644 --- a/cpu/mips/incaip_clock.c +++ b/cpu/mips/incaip_clock.c @@ -40,33 +40,28 @@  *   frequency of the CPU. Don't use the macros, which are set to init the CPU  *   frequency in the ROM code.  */ -uint incaip_get_cpuclk(void) +uint incaip_get_cpuclk (void)  { -   /*-------------------------------------------------------------------------*/ -   /* CPU Clock Input Multiplexer (MUX I)                                     */ -   /* Multiplexer MUX I selects the maximum input clock to the CPU.           */ -   /*-------------------------------------------------------------------------*/ -   if (*((volatile ulong*)INCA_IP_CGU_CGU_MUXCR) & INCA_IP_CGU_CGU_MUXCR_MUXI) -   { -      /* MUX I set to 150 MHz clock */ -      return 150000000; -   } -   else -   { -      /* MUX I set to 100/133 MHz clock */ -      if (*((volatile ulong*)INCA_IP_CGU_CGU_DIVCR) & 0x40) -      { -	 /* Division value is 1/3, maximum CPU operating */ -	 /* frequency is 133.3 MHz                       */ -	 return 130000000; -      } -      else -      { -	 /* Division value is 1/4, maximum CPU operating */ -	 /* frequency is 100 MHz                         */ -	 return 100000000; -      } -   } +	/*-------------------------------------------------------------------------*/ +	/* CPU Clock Input Multiplexer (MUX I)                                     */ +	/* Multiplexer MUX I selects the maximum input clock to the CPU.           */ +	/*-------------------------------------------------------------------------*/ +	if (*((volatile ulong *) INCA_IP_CGU_CGU_MUXCR) & +	    INCA_IP_CGU_CGU_MUXCR_MUXI) { +		/* MUX I set to 150 MHz clock */ +		return 150000000; +	} else { +		/* MUX I set to 100/133 MHz clock */ +		if (*((volatile ulong *) INCA_IP_CGU_CGU_DIVCR) & 0x40) { +			/* Division value is 1/3, maximum CPU operating */ +			/* frequency is 133.3 MHz                       */ +			return 130000000; +		} else { +			/* Division value is 1/4, maximum CPU operating */ +			/* frequency is 100 MHz                         */ +			return 100000000; +		} +	}  }  /******************************************************************************* @@ -83,36 +78,36 @@ uint incaip_get_cpuclk(void)  *   frequency in the ROM code.  *   The calculation for the  */ -uint incaip_get_fpiclk(void) +uint incaip_get_fpiclk (void)  { -   uint  clkCPU; +	uint clkCPU; -   clkCPU = incaip_get_cpuclk(); +	clkCPU = incaip_get_cpuclk (); -   switch (*((volatile ulong*)INCA_IP_CGU_CGU_DIVCR) & 0xC) -   { -      case 0x4: -	 return clkCPU >> 1; /* devided by 2 */ -	 break; -      case 0x8: -	 return clkCPU >> 2; /* devided by 4 */ -	 break; -      default: -	 return clkCPU; -	 break; -   } +	switch (*((volatile ulong *) INCA_IP_CGU_CGU_DIVCR) & 0xC) { +	case 0x4: +		return clkCPU >> 1;	/* devided by 2 */ +		break; +	case 0x8: +		return clkCPU >> 2;	/* devided by 4 */ +		break; +	default: +		return clkCPU; +		break; +	}  } -int incaip_set_cpuclk(void) +int incaip_set_cpuclk (void)  { +	extern void ebu_init(long); +	extern void cgu_init(long);  	uchar tmp[64];  	ulong cpuclk; -	if (getenv_r("cpuclk", tmp, sizeof(tmp)) > 0) -	{ -		cpuclk = simple_strtoul(tmp, NULL, 10) * 1000000; -		ebu_init(cpuclk); -		cgu_init(cpuclk); +	if (getenv_r ("cpuclk", tmp, sizeof (tmp)) > 0) { +		cpuclk = simple_strtoul (tmp, NULL, 10) * 1000000; +		ebu_init (cpuclk); +		cgu_init (cpuclk);  	}  	return 0; |