/*
- * (C) Copyright 2000
+ * (C) Copyright 2000-2008
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#define DEBUGF(fmt,args...)
#endif
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
#if defined(CONFIG_405GP) || defined(CONFIG_405CR)
-void get_sys_info (PPC405_SYS_INFO * sysInfo)
+void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
{
unsigned long pllmr;
unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ / 1000);
sysInfo->freqProcessor = sysInfo->freqPLB * sysInfo->pllPlbDiv;
}
}
+
+ sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv;
+
+ sysInfo->freqUART = sysInfo->freqProcessor;
}
{
ulong val = 0;
- PPC405_SYS_INFO sys_info;
+ PPC4xx_SYS_INFO sys_info;
get_sys_info (&sys_info);
val = sys_info.freqPLB / sys_info.pllOpbDiv;
ulong get_PCI_freq (void)
{
ulong val;
- PPC405_SYS_INFO sys_info;
+ PPC4xx_SYS_INFO sys_info;
get_sys_info (&sys_info);
val = sys_info.freqPLB / sys_info.pllPciDiv;
#elif defined(CONFIG_440)
-#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+static u8 pll_fwdv_multi_bits[] = {
+ /* values for: 1 - 16 */
+ 0x00, 0x01, 0x0f, 0x04, 0x09, 0x0a, 0x0d, 0x0e, 0x03, 0x0c,
+ 0x05, 0x08, 0x07, 0x02, 0x0b, 0x06
+};
+
+u32 get_cpr0_fwdv(unsigned long cpr_reg_fwdv)
+{
+ u32 index;
+
+ for (index = 0; index < ARRAY_SIZE(pll_fwdv_multi_bits); index++)
+ if (cpr_reg_fwdv == (u32)pll_fwdv_multi_bits[index])
+ return index + 1;
+
+ return 0;
+}
+
+static u8 pll_fbdv_multi_bits[] = {
+ /* values for: 1 - 100 */
+ 0x00, 0xff, 0x7e, 0xfd, 0x7a, 0xf5, 0x6a, 0xd5, 0x2a, 0xd4,
+ 0x29, 0xd3, 0x26, 0xcc, 0x19, 0xb3, 0x67, 0xce, 0x1d, 0xbb,
+ 0x77, 0xee, 0x5d, 0xba, 0x74, 0xe9, 0x52, 0xa5, 0x4b, 0x96,
+ 0x2c, 0xd8, 0x31, 0xe3, 0x46, 0x8d, 0x1b, 0xb7, 0x6f, 0xde,
+ 0x3d, 0xfb, 0x76, 0xed, 0x5a, 0xb5, 0x6b, 0xd6, 0x2d, 0xdb,
+ 0x36, 0xec, 0x59, 0xb2, 0x64, 0xc9, 0x12, 0xa4, 0x48, 0x91,
+ 0x23, 0xc7, 0x0e, 0x9c, 0x38, 0xf0, 0x61, 0xc2, 0x05, 0x8b,
+ 0x17, 0xaf, 0x5f, 0xbe, 0x7c, 0xf9, 0x72, 0xe5, 0x4a, 0x95,
+ 0x2b, 0xd7, 0x2e, 0xdc, 0x39, 0xf3, 0x66, 0xcd, 0x1a, 0xb4,
+ 0x68, 0xd1, 0x22, 0xc4, 0x09, 0x93, 0x27, 0xcf, 0x1e, 0xbc,
+ /* values for: 101 - 200 */
+ 0x78, 0xf1, 0x62, 0xc5, 0x0a, 0x94, 0x28, 0xd0, 0x21, 0xc3,
+ 0x06, 0x8c, 0x18, 0xb0, 0x60, 0xc1, 0x02, 0x84, 0x08, 0x90,
+ 0x20, 0xc0, 0x01, 0x83, 0x07, 0x8f, 0x1f, 0xbf, 0x7f, 0xfe,
+ 0x7d, 0xfa, 0x75, 0xea, 0x55, 0xaa, 0x54, 0xa9, 0x53, 0xa6,
+ 0x4c, 0x99, 0x33, 0xe7, 0x4e, 0x9d, 0x3b, 0xf7, 0x6e, 0xdd,
+ 0x3a, 0xf4, 0x69, 0xd2, 0x25, 0xcb, 0x16, 0xac, 0x58, 0xb1,
+ 0x63, 0xc6, 0x0d, 0x9b, 0x37, 0xef, 0x5e, 0xbd, 0x7b, 0xf6,
+ 0x6d, 0xda, 0x35, 0xeb, 0x56, 0xad, 0x5b, 0xb6, 0x6c, 0xd9,
+ 0x32, 0xe4, 0x49, 0x92, 0x24, 0xc8, 0x11, 0xa3, 0x47, 0x8e,
+ 0x1c, 0xb8, 0x70, 0xe1, 0x42, 0x85, 0x0b, 0x97, 0x2f, 0xdf,
+ /* values for: 201 - 255 */
+ 0x3e, 0xfc, 0x79, 0xf2, 0x65, 0xca, 0x15, 0xab, 0x57, 0xae,
+ 0x5c, 0xb9, 0x73, 0xe6, 0x4d, 0x9a, 0x34, 0xe8, 0x51, 0xa2,
+ 0x44, 0x89, 0x13, 0xa7, 0x4f, 0x9e, 0x3c, 0xf8, 0x71, 0xe2,
+ 0x45, 0x8a, 0x14, 0xa8, 0x50, 0xa1, 0x43, 0x86, 0x0c, 0x98,
+ 0x30, 0xe0, 0x41, 0x82, 0x04, 0x88, 0x10, 0xa0, 0x40, 0x81,
+ 0x03, 0x87, 0x0f, 0x9f, 0x3f /* END */
+};
+
+u32 get_cpr0_fbdv(unsigned long cpr_reg_fbdv)
+{
+ u32 index;
+
+ for (index = 0; index < ARRAY_SIZE(pll_fbdv_multi_bits); index++)
+ if (cpr_reg_fbdv == (u32)pll_fbdv_multi_bits[index])
+ return index + 1;
+
+ return 0;
+}
+
+/*
+ * AMCC_TODO: verify this routine against latest EAS, cause stuff changed
+ * with latest EAS
+ */
+void get_sys_info (sys_info_t * sysInfo)
+{
+ unsigned long strp0;
+ unsigned long strp1;
+ unsigned long temp;
+ unsigned long m;
+ unsigned long plbedv0;
+
+ /* Extract configured divisors */
+ mfsdr(sdr_sdstp0, strp0);
+ mfsdr(sdr_sdstp1, strp1);
+
+ temp = ((strp0 & PLLSYS0_FWD_DIV_A_MASK) >> 4);
+ sysInfo->pllFwdDivA = get_cpr0_fwdv(temp);
+
+ temp = (strp0 & PLLSYS0_FWD_DIV_B_MASK);
+ sysInfo->pllFwdDivB = get_cpr0_fwdv(temp);
+
+ temp = (strp0 & PLLSYS0_FB_DIV_MASK) >> 8;
+ sysInfo->pllFbkDiv = get_cpr0_fbdv(temp);
+
+ temp = (strp1 & PLLSYS0_OPB_DIV_MASK) >> 26;
+ sysInfo->pllOpbDiv = temp ? temp : 4;
+
+ /* AMCC_TODO: verify the SDR0_SDSTP1.PERDV0 value sysInfo->pllExtBusDiv */
+ temp = (strp1 & PLLSYS0_PERCLK_DIV_MASK) >> 24;
+ sysInfo->pllExtBusDiv = temp ? temp : 4;
+
+ temp = (strp1 & PLLSYS0_PLBEDV0_DIV_MASK) >> 29;
+ plbedv0 = temp ? temp: 8;
+
+ /* Calculate 'M' based on feedback source */
+ temp = (strp0 & PLLSYS0_SEL_MASK) >> 27;
+ if (temp == 0) {
+ /* PLL internal feedback */
+ m = sysInfo->pllFbkDiv;
+ } else {
+ /* PLL PerClk feedback */
+ m = sysInfo->pllFwdDivA * plbedv0 * sysInfo->pllOpbDiv *
+ sysInfo->pllExtBusDiv;
+ }
+
+ /* Now calculate the individual clocks */
+ sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m >> 1);
+ sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA;
+ sysInfo->freqPLB = sysInfo->freqVCOMhz / sysInfo->pllFwdDivA / plbedv0;
+ sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv;
+ sysInfo->freqEBC = sysInfo->freqOPB / sysInfo->pllExtBusDiv;
+ sysInfo->freqDDR = sysInfo->freqPLB;
+ sysInfo->freqUART = sysInfo->freqPLB;
+
+ return;
+}
+
+#elif defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
void get_sys_info (sys_info_t *sysInfo)
{
*/
/* Decode CPR0_PLLD0 for divisors */
- mfclk(clk_plld, reg);
+ mfcpr(clk_plld, reg);
temp = (reg & PLLD_FWDVA_MASK) >> 16;
sysInfo->pllFwdDivA = temp ? temp : 16;
temp = (reg & PLLD_FWDVB_MASK) >> 8;
sysInfo->pllFbkDiv = temp ? temp : 32;
lfdiv = reg & PLLD_LFBDV_MASK;
- mfclk(clk_opbd, reg);
+ mfcpr(clk_opbd, reg);
temp = (reg & OPBDDV_MASK) >> 24;
sysInfo->pllOpbDiv = temp ? temp : 4;
- mfclk(clk_perd, reg);
+ mfcpr(clk_perd, reg);
temp = (reg & PERDV_MASK) >> 24;
sysInfo->pllExtBusDiv = temp ? temp : 8;
- mfclk(clk_primbd, reg);
+ mfcpr(clk_primbd, reg);
temp = (reg & PRBDV_MASK) >> 24;
prbdv0 = temp ? temp : 8;
- mfclk(clk_spcid, reg);
+ mfcpr(clk_spcid, reg);
temp = (reg & SPCID_MASK) >> 24;
sysInfo->pllPciDiv = temp ? temp : 4;
temp = (reg & PLLSYS0_SEL_MASK) >> 27;
if (temp == 0) { /* PLL output */
/* Figure which pll to use */
- mfclk(clk_pllc, reg);
+ mfcpr(clk_pllc, reg);
temp = (reg & PLLC_SRC_MASK) >> 29;
if (!temp) /* PLLOUTA */
m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivA;
sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA;
sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB/prbdv0;
sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
- sysInfo->freqEPB = sysInfo->freqPLB/sysInfo->pllExtBusDiv;
+ 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 */
else /* Internal clock */
sysInfo->freqTmrClk = sysInfo->freqProcessor;
}
+
/********************************************
* get_PCI_freq
* return PCI bus freq in Hz
if( get_pvr() == PVR_440GP_RB ) /* Rev B divs an extra 2 -- geez! */
sysInfo->freqPLB >>= 1;
sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
- sysInfo->freqEPB = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
-
+ sysInfo->freqEBC = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
+ sysInfo->freqUART = sysInfo->freqPLB;
}
#else
void get_sys_info (sys_info_t * sysInfo)
unsigned long m;
unsigned long prbdv0;
-#if defined(CONFIG_440SPE)
+#if defined(CONFIG_YUCCA)
unsigned long sys_freq;
unsigned long sys_per=0;
unsigned long msr;
/*-------------------------------------------------------------------------+
| Calculate the system clock speed from the period.
+-------------------------------------------------------------------------*/
- sys_freq=(ONE_BILLION/sys_per)*1000;
+ sys_freq = (ONE_BILLION / sys_per) * 1000;
#endif
/* Extract configured divisors */
m = sysInfo->pllExtBusDiv * sysInfo->pllOpbDiv * sysInfo->pllFwdDivB;
/* Now calculate the individual clocks */
-#if defined(CONFIG_440SPE)
+#if defined(CONFIG_YUCCA)
sysInfo->freqVCOMhz = (m * sys_freq) ;
#else
- sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1);
+ sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m >> 1);
#endif
sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA;
sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB/prbdv0;
sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
- sysInfo->freqEPB = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
+ sysInfo->freqEBC = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
-#if defined(CONFIG_440SPE)
+#if defined(CONFIG_YUCCA)
/* Determine PCI Clock Period */
pci_clock_per = determine_pci_clock_per();
sysInfo->freqPCI = (ONE_BILLION/pci_clock_per) * 1000;
sysInfo->freqDDR = ((sysInfo->freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll));
#endif
-
+ sysInfo->freqUART = sysInfo->freqPLB;
}
#endif
-#if defined(CONFIG_440SPE)
+#if defined(CONFIG_YUCCA)
unsigned long determine_sysper(void)
{
unsigned int fpga_clocking_reg;
}
return(sys_per);
-
}
/*-------------------------------------------------------------------------+
return sys_info.freqOPB;
}
-#elif defined(CONFIG_XILINX_ML300)
+#elif defined(CONFIG_XILINX_405)
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;
#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)
-void get_sys_info (PPC405_SYS_INFO * sysInfo)
+void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
{
unsigned long pllmr0;
unsigned long pllmr1;
* Determine FBK_DIV.
*/
sysInfo->pllFbkDiv = ((pllmr1 & PLLMR1_FBMUL_MASK) >> 20);
- if (sysInfo->pllFbkDiv == 0) {
+ if (sysInfo->pllFbkDiv == 0)
sysInfo->pllFbkDiv = 16;
- }
/*
* Determine PLB_DIV.
* Determine PLB clock frequency
*/
sysInfo->freqPLB = sysInfo->freqProcessor / sysInfo->pllPlbDiv;
+
+ sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv;
+
+ sysInfo->freqUART = sysInfo->freqProcessor * pllmr0_ccdv;
}
{
ulong val = 0;
- PPC405_SYS_INFO sys_info;
+ PPC4xx_SYS_INFO sys_info;
get_sys_info (&sys_info);
val = sys_info.freqPLB / sys_info.pllOpbDiv;
ulong get_PCI_freq (void)
{
ulong val;
- PPC405_SYS_INFO sys_info;
+ PPC4xx_SYS_INFO sys_info;
get_sys_info (&sys_info);
val = sys_info.freqPLB / sys_info.pllPciDiv;
return val;
}
+#elif defined(CONFIG_405EZ)
+void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
+{
+ unsigned long cpr_plld;
+ unsigned long cpr_pllc;
+ unsigned long cpr_primad;
+ unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ/1000);
+ unsigned long primad_cpudv;
+ unsigned long m;
+
+ /*
+ * Read PLL Mode registers
+ */
+ mfcpr(cprplld, cpr_plld);
+ mfcpr(cprpllc, cpr_pllc);
+
+ /*
+ * Determine forward divider A
+ */
+ sysInfo->pllFwdDiv = ((cpr_plld & PLLD_FWDVA_MASK) >> 16);
+
+ /*
+ * Determine forward divider B
+ */
+ sysInfo->pllFwdDivB = ((cpr_plld & PLLD_FWDVB_MASK) >> 8);
+ if (sysInfo->pllFwdDivB == 0)
+ sysInfo->pllFwdDivB = 8;
+
+ /*
+ * Determine FBK_DIV.
+ */
+ sysInfo->pllFbkDiv = ((cpr_plld & PLLD_FBDV_MASK) >> 24);
+ if (sysInfo->pllFbkDiv == 0)
+ sysInfo->pllFbkDiv = 256;
+
+ /*
+ * Read CPR_PRIMAD register
+ */
+ mfcpr(cprprimad, cpr_primad);
+
+ /*
+ * Determine PLB_DIV.
+ */
+ sysInfo->pllPlbDiv = ((cpr_primad & PRIMAD_PLBDV_MASK) >> 16);
+ if (sysInfo->pllPlbDiv == 0)
+ sysInfo->pllPlbDiv = 16;
+
+ /*
+ * Determine EXTBUS_DIV.
+ */
+ sysInfo->pllExtBusDiv = (cpr_primad & PRIMAD_EBCDV_MASK);
+ if (sysInfo->pllExtBusDiv == 0)
+ sysInfo->pllExtBusDiv = 16;
+
+ /*
+ * Determine OPB_DIV.
+ */
+ sysInfo->pllOpbDiv = ((cpr_primad & PRIMAD_OPBDV_MASK) >> 8);
+ if (sysInfo->pllOpbDiv == 0)
+ sysInfo->pllOpbDiv = 16;
+
+ /*
+ * Determine the M factor
+ */
+ if (cpr_pllc & PLLC_SRC_MASK)
+ m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivB;
+ else
+ m = sysInfo->pllFbkDiv * sysInfo->pllFwdDiv;
+
+ /*
+ * Determine VCO clock frequency
+ */
+ sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) /
+ (unsigned long long)sysClkPeriodPs;
+
+ /*
+ * Determine CPU clock frequency
+ */
+ primad_cpudv = ((cpr_primad & PRIMAD_CPUDV_MASK) >> 24);
+ if (primad_cpudv == 0)
+ primad_cpudv = 16;
+
+ sysInfo->freqProcessor = (CONFIG_SYS_CLK_FREQ * m) /
+ sysInfo->pllFwdDiv / primad_cpudv;
+
+ /*
+ * Determine PLB clock frequency
+ */
+ sysInfo->freqPLB = (CONFIG_SYS_CLK_FREQ * m) /
+ sysInfo->pllFwdDiv / sysInfo->pllPlbDiv;
+
+ sysInfo->freqEBC = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) /
+ sysInfo->pllExtBusDiv;
+
+ sysInfo->freqUART = sysInfo->freqVCOHz;
+}
+
+/********************************************
+ * get_OPB_freq
+ * return OPB bus freq in Hz
+ *********************************************/
+ulong get_OPB_freq (void)
+{
+ ulong val = 0;
+
+ PPC4xx_SYS_INFO sys_info;
+
+ get_sys_info (&sys_info);
+ val = (CONFIG_SYS_CLK_FREQ * sys_info.pllFbkDiv) / sys_info.pllOpbDiv;
+
+ return val;
+}
+
+#elif defined(CONFIG_405EX)
+
+/*
+ * TODO: We need to get the CPR registers and calculate these values correctly!!!!
+ * We need the specs!!!!
+ */
+static unsigned char get_fbdv(unsigned char index)
+{
+ unsigned char ret = 0;
+ /* This is table should be 256 bytes.
+ * Only take first 52 values.
+ */
+ unsigned char fbdv_tb[] = {
+ 0x00, 0xff, 0x7f, 0xfd,
+ 0x7a, 0xf5, 0x6a, 0xd5,
+ 0x2a, 0xd4, 0x29, 0xd3,
+ 0x26, 0xcc, 0x19, 0xb3,
+ 0x67, 0xce, 0x1d, 0xbb,
+ 0x77, 0xee, 0x5d, 0xba,
+ 0x74, 0xe9, 0x52, 0xa5,
+ 0x4b, 0x96, 0x2c, 0xd8,
+ 0x31, 0xe3, 0x46, 0x8d,
+ 0x1b, 0xb7, 0x6f, 0xde,
+ 0x3d, 0xfb, 0x76, 0xed,
+ 0x5a, 0xb5, 0x6b, 0xd6,
+ 0x2d, 0xdb, 0x36, 0xec,
+
+ };
+
+ if ((index & 0x7f) == 0)
+ return 1;
+ while (ret < sizeof (fbdv_tb)) {
+ if (fbdv_tb[ret] == index)
+ break;
+ ret++;
+ }
+ ret++;
+
+ return ret;
+}
+
+#define PLL_FBK_PLL_LOCAL 0
+#define PLL_FBK_CPU 1
+#define PLL_FBK_PERCLK 5
+
+void get_sys_info (sys_info_t * sysInfo)
+{
+ unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ / 1000);
+ unsigned long m = 1;
+ unsigned int tmp;
+ unsigned char fwdva[16] = {
+ 1, 2, 14, 9, 4, 11, 16, 13,
+ 12, 5, 6, 15, 10, 7, 8, 3,
+ };
+ unsigned char sel, cpudv0, plb2xDiv;
+
+ mfcpr(cpr0_plld, tmp);
+
+ /*
+ * Determine forward divider A
+ */
+ sysInfo->pllFwdDiv = fwdva[((tmp >> 16) & 0x0f)]; /* FWDVA */
+
+ /*
+ * Determine FBK_DIV.
+ */
+ sysInfo->pllFbkDiv = get_fbdv(((tmp >> 24) & 0x0ff)); /* FBDV */
+
+ /*
+ * Determine PLBDV0
+ */
+ sysInfo->pllPlbDiv = 2;
+
+ /*
+ * Determine PERDV0
+ */
+ mfcpr(cpr0_perd, tmp);
+ tmp = (tmp >> 24) & 0x03;
+ sysInfo->pllExtBusDiv = (tmp == 0) ? 4 : tmp;
+
+ /*
+ * Determine OPBDV0
+ */
+ mfcpr(cpr0_opbd, tmp);
+ tmp = (tmp >> 24) & 0x03;
+ sysInfo->pllOpbDiv = (tmp == 0) ? 4 : tmp;
+
+ /* Determine PLB2XDV0 */
+ mfcpr(cpr0_plbd, tmp);
+ tmp = (tmp >> 16) & 0x07;
+ plb2xDiv = (tmp == 0) ? 8 : tmp;
+
+ /* Determine CPUDV0 */
+ mfcpr(cpr0_cpud, tmp);
+ tmp = (tmp >> 24) & 0x07;
+ cpudv0 = (tmp == 0) ? 8 : tmp;
+
+ /* Determine SEL(5:7) in CPR0_PLLC */
+ mfcpr(cpr0_pllc, tmp);
+ sel = (tmp >> 24) & 0x07;
+
+ /*
+ * Determine the M factor
+ * PLL local: M = FBDV
+ * CPU clock: M = FBDV * FWDVA * CPUDV0
+ * PerClk : M = FBDV * FWDVA * PLB2XDV0 * PLBDV0(2) * OPBDV0 * PERDV0
+ *
+ */
+ switch (sel) {
+ case PLL_FBK_CPU:
+ m = sysInfo->pllFwdDiv * cpudv0;
+ break;
+ case PLL_FBK_PERCLK:
+ m = sysInfo->pllFwdDiv * plb2xDiv * 2
+ * sysInfo->pllOpbDiv * sysInfo->pllExtBusDiv;
+ break;
+ case PLL_FBK_PLL_LOCAL:
+ break;
+ default:
+ printf("%s unknown m\n", __FUNCTION__);
+ return;
+
+ }
+ m *= sysInfo->pllFbkDiv;
+
+ /*
+ * Determine VCO clock frequency
+ */
+ sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) /
+ (unsigned long long)sysClkPeriodPs;
+
+ /*
+ * Determine CPU clock frequency
+ */
+ sysInfo->freqProcessor = sysInfo->freqVCOHz / (sysInfo->pllFwdDiv * cpudv0);
+
+ /*
+ * Determine PLB clock frequency, ddr1x should be the same
+ */
+ sysInfo->freqPLB = sysInfo->freqVCOHz / (sysInfo->pllFwdDiv * plb2xDiv * 2);
+ sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
+ sysInfo->freqDDR = sysInfo->freqPLB;
+ sysInfo->freqEBC = sysInfo->freqOPB / sysInfo->pllExtBusDiv;
+ sysInfo->freqUART = sysInfo->freqPLB;
+}
+
+/********************************************
+ * get_OPB_freq
+ * return OPB bus freq in Hz
+ *********************************************/
+ulong get_OPB_freq (void)
+{
+ ulong val = 0;
+
+ PPC4xx_SYS_INFO sys_info;
+
+ get_sys_info (&sys_info);
+ val = sys_info.freqPLB / sys_info.pllOpbDiv;
+
+ return val;
+}
+
#endif
int get_clocks (void)
{
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || defined(CONFIG_405) || defined(CONFIG_405EP)
+#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
+ defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \
+ defined(CONFIG_405EX) || defined(CONFIG_405) || \
+ defined(CONFIG_440)
sys_info_t sys_info;
get_sys_info (&sys_info);
{
ulong val;
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405) || defined(CONFIG_440) || defined(CONFIG_405EP)
+#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
+ defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \
+ defined(CONFIG_405EX) || defined(CONFIG_405) || \
+ defined(CONFIG_440)
sys_info_t sys_info;
get_sys_info (&sys_info);
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