diff options
Diffstat (limited to 'cpu/ppc4xx')
| -rw-r--r-- | cpu/ppc4xx/fdt.c | 7 | ||||
| -rw-r--r-- | cpu/ppc4xx/speed.c | 25 |
2 files changed, 24 insertions, 8 deletions
diff --git a/cpu/ppc4xx/fdt.c b/cpu/ppc4xx/fdt.c index 2acb250..44e95a5 100644 --- a/cpu/ppc4xx/fdt.c +++ b/cpu/ppc4xx/fdt.c @@ -79,10 +79,17 @@ static void do_fixup_uart(void *fdt, int offset, int i, bd_t *bd) { int rc; u32 val; + PPC4xx_SYS_INFO sys_info; + + get_sys_info(&sys_info); debug("Updating node UART%d\n", i); +#if defined(CFG_EXT_SERIAL_CLOCK) val = cpu_to_fdt32(CFG_EXT_SERIAL_CLOCK); +#else + val = cpu_to_fdt32(sys_info.freqUART); +#endif rc = fdt_setprop(fdt, offset, "clock-frequency", &val, 4); if (rc) printf("Unable to update node UART, err=%s\n", fdt_strerror(rc)); diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c index 26182da..9006614 100644 --- a/cpu/ppc4xx/speed.c +++ b/cpu/ppc4xx/speed.c @@ -162,6 +162,8 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo) sysInfo->freqProcessor = sysInfo->freqPLB * sysInfo->pllPlbDiv; } } + + sysInfo->freqUART = sysInfo->freqProcessor; } @@ -265,6 +267,7 @@ void get_sys_info (sys_info_t *sysInfo) sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; sysInfo->freqEBC = sysInfo->freqPLB/sysInfo->pllExtBusDiv; sysInfo->freqPCI = sysInfo->freqPLB/sysInfo->pllPciDiv; + sysInfo->freqUART = sysInfo->freqPLB; /* Figure which timer source to use */ if (mfspr(ccr1) & 0x0080) { /* External Clock, assume same as SYS_CLK */ @@ -277,6 +280,7 @@ void get_sys_info (sys_info_t *sysInfo) else /* Internal clock */ sysInfo->freqTmrClk = sysInfo->freqProcessor; } + /******************************************** * get_PCI_freq * return PCI bus freq in Hz @@ -318,7 +322,7 @@ void get_sys_info (sys_info_t * sysInfo) sysInfo->freqPLB >>= 1; sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; sysInfo->freqEBC = sysInfo->freqOPB/sysInfo->pllExtBusDiv; - + sysInfo->freqUART = sysInfo->freqPLB; } #else void get_sys_info (sys_info_t * sysInfo) @@ -403,7 +407,7 @@ void get_sys_info (sys_info_t * sysInfo) sysInfo->freqDDR = ((sysInfo->freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); #endif - + sysInfo->freqUART = sysInfo->freqPLB; } #endif @@ -632,7 +636,8 @@ extern void get_sys_info (sys_info_t * sysInfo); extern ulong get_PCI_freq (void); #elif defined(CONFIG_AP1000) -void get_sys_info (sys_info_t * sysInfo) { +void get_sys_info (sys_info_t * sysInfo) +{ sysInfo->freqProcessor = 240 * 1000 * 1000; sysInfo->freqPLB = 80 * 1000 * 1000; sysInfo->freqPCI = 33 * 1000 * 1000; @@ -640,13 +645,12 @@ void get_sys_info (sys_info_t * sysInfo) { #elif defined(CONFIG_405) -void get_sys_info (sys_info_t * sysInfo) { - +void get_sys_info (sys_info_t * sysInfo) +{ sysInfo->freqVCOMhz=3125000; sysInfo->freqProcessor=12*1000*1000; sysInfo->freqPLB=50*1000*1000; sysInfo->freqPCI=66*1000*1000; - } #elif defined(CONFIG_405EP) @@ -678,9 +682,8 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo) * Determine FBK_DIV. */ sysInfo->pllFbkDiv = ((pllmr1 & PLLMR1_FBMUL_MASK) >> 20); - if (sysInfo->pllFbkDiv == 0) { + if (sysInfo->pllFbkDiv == 0) sysInfo->pllFbkDiv = 16; - } /* * Determine PLB_DIV. @@ -735,6 +738,8 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo) sysInfo->freqPLB = sysInfo->freqProcessor / sysInfo->pllPlbDiv; sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv; + + sysInfo->freqUART = sysInfo->freqProcessor * pllmr0_ccdv; } @@ -808,6 +813,7 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo) * Read CPR_PRIMAD register */ mfcpr(cprprimad, cpr_primad); + /* * Determine PLB_DIV. */ @@ -861,6 +867,8 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo) sysInfo->freqEBC = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) / sysInfo->pllExtBusDiv; + + sysInfo->freqUART = sysInfo->freqVCOHz; } /******************************************** @@ -1022,6 +1030,7 @@ void get_sys_info (sys_info_t * sysInfo) sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; sysInfo->freqDDR = sysInfo->freqPLB; sysInfo->freqEBC = sysInfo->freqOPB / sysInfo->pllExtBusDiv; + sysInfo->freqUART = sysInfo->freqPLB; } /******************************************** |