diff options
Diffstat (limited to 'arch/powerpc/cpu/ppc4xx/speed.c')
-rw-r--r-- | arch/powerpc/cpu/ppc4xx/speed.c | 75 |
1 files changed, 1 insertions, 74 deletions
diff --git a/arch/powerpc/cpu/ppc4xx/speed.c b/arch/powerpc/cpu/ppc4xx/speed.c index 4baee7774c..3e1a7016d9 100644 --- a/arch/powerpc/cpu/ppc4xx/speed.c +++ b/arch/powerpc/cpu/ppc4xx/speed.c @@ -171,7 +171,7 @@ ulong get_PCI_freq (void) #elif defined(CONFIG_440) #if defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ - defined(CONFIG_460SX) || defined(CONFIG_APM821XX) + defined(CONFIG_460SX) static u8 pll_fwdv_multi_bits[] = { /* values for: 1 - 16 */ 0x00, 0x01, 0x0f, 0x04, 0x09, 0x0a, 0x0d, 0x0e, 0x03, 0x0c, @@ -232,78 +232,6 @@ u32 get_cpr0_fbdv(unsigned long cpr_reg_fbdv) return 0; } -#if defined(CONFIG_APM821XX) - -void get_sys_info(sys_info_t *sysInfo) -{ - unsigned long plld; - unsigned long temp; - unsigned long mul; - unsigned long cpudv; - unsigned long plb2dv; - unsigned long ddr2dv; - - /* Calculate Forward divisor A and Feeback divisor */ - mfcpr(CPR0_PLLD, plld); - - temp = CPR0_PLLD_FWDVA(plld); - sysInfo->pllFwdDivA = get_cpr0_fwdv(temp); - - temp = CPR0_PLLD_FDV(plld); - sysInfo->pllFbkDiv = get_cpr0_fbdv(temp); - - /* Calculate OPB clock divisor */ - mfcpr(CPR0_OPBD, temp); - temp = CPR0_OPBD_OPBDV(temp); - sysInfo->pllOpbDiv = temp ? temp : 4; - - /* Calculate Peripheral clock divisor */ - mfcpr(CPR0_PERD, temp); - temp = CPR0_PERD_PERDV(temp); - sysInfo->pllExtBusDiv = temp ? temp : 4; - - /* Calculate CPU clock divisor */ - mfcpr(CPR0_CPUD, temp); - temp = CPR0_CPUD_CPUDV(temp); - cpudv = temp ? temp : 8; - - /* Calculate PLB2 clock divisor */ - mfcpr(CPR0_PLB2D, temp); - temp = CPR0_PLB2D_PLB2DV(temp); - plb2dv = temp ? temp : 4; - - /* Calculate DDR2 clock divisor */ - mfcpr(CPR0_DDR2D, temp); - temp = CPR0_DDR2D_DDR2DV(temp); - ddr2dv = temp ? temp : 4; - - /* Calculate 'M' based on feedback source */ - mfcpr(CPR0_PLLC, temp); - temp = CPR0_PLLC_SEL(temp); - if (temp == 0) { - /* PLL internal feedback */ - mul = sysInfo->pllFbkDiv; - } else { - /* PLL PerClk feedback */ - mul = sysInfo->pllFwdDivA * sysInfo->pllFbkDiv * cpudv - * plb2dv * 2 * sysInfo->pllOpbDiv * - sysInfo->pllExtBusDiv; - } - - /* Now calculate the individual clocks */ - sysInfo->freqVCOMhz = (mul * CONFIG_SYS_CLK_FREQ) + (mul >> 1); - sysInfo->freqProcessor = sysInfo->freqVCOMhz / - sysInfo->pllFwdDivA / cpudv; - sysInfo->freqPLB = sysInfo->freqVCOMhz / - sysInfo->pllFwdDivA / cpudv / plb2dv / 2; - sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv; - sysInfo->freqEBC = sysInfo->freqOPB / sysInfo->pllExtBusDiv; - sysInfo->freqDDR = sysInfo->freqVCOMhz / - sysInfo->pllFwdDivA / cpudv / ddr2dv / 2; - sysInfo->freqUART = sysInfo->freqPLB; -} - -#else /* * AMCC_TODO: verify this routine against latest EAS, cause stuff changed * with latest EAS @@ -361,7 +289,6 @@ void get_sys_info (sys_info_t * sysInfo) return; } -#endif #elif defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ defined(CONFIG_440EPX) || defined(CONFIG_440GRX) |