physicalID = devId750;//either 0x718 or 0x750
physicalRev = revId750;
- if (physicalID == 0x718)
- {
- chip = SM718;
- }
- else if (physicalID == 0x750)
- {
- chip = SM750;
+ if (physicalID == 0x718)
+ {
+ chip = SM718;
+ }
+ else if (physicalID == 0x750)
+ {
+ chip = SM750;
/* SM750 and SM750LE are different in their revision ID only. */
if (physicalRev == SM750LE_REVISION_ID){
chip = SM750LE;
}
- }
- else
- {
- chip = SM_UNKNOWN;
- }
+ }
+ else
+ {
+ chip = SM_UNKNOWN;
+ }
return chip;
}
inline unsigned int twoToPowerOfx(unsigned long x)
{
- unsigned long i;
- unsigned long result = 1;
+ unsigned long i;
+ unsigned long result = 1;
- for (i=1; i<=x; i++)
- result *= 2;
- return result;
+ for (i=1; i<=x; i++)
+ result *= 2;
+ return result;
}
inline unsigned int calcPLL(pll_value_t *pPLL)
{
- return (pPLL->inputFreq * pPLL->M / pPLL->N / twoToPowerOfx(pPLL->OD) / twoToPowerOfx(pPLL->POD));
+ return (pPLL->inputFreq * pPLL->M / pPLL->N / twoToPowerOfx(pPLL->OD) / twoToPowerOfx(pPLL->POD));
}
unsigned int getPllValue(clock_type_t clockType, pll_value_t *pPLL)
{
- unsigned int ulPllReg = 0;
-
- pPLL->inputFreq = DEFAULT_INPUT_CLOCK;
- pPLL->clockType = clockType;
-
- switch (clockType)
- {
- case MXCLK_PLL:
- ulPllReg = PEEK32(MXCLK_PLL_CTRL);
- break;
- case PRIMARY_PLL:
- ulPllReg = PEEK32(PANEL_PLL_CTRL);
- break;
- case SECONDARY_PLL:
- ulPllReg = PEEK32(CRT_PLL_CTRL);
- break;
- case VGA0_PLL:
- ulPllReg = PEEK32(VGA_PLL0_CTRL);
- break;
- case VGA1_PLL:
- ulPllReg = PEEK32(VGA_PLL1_CTRL);
- break;
- }
-
- pPLL->M = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, M);
- pPLL->N = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, N);
- pPLL->OD = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, OD);
- pPLL->POD = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, POD);
-
- return calcPLL(pPLL);
+ unsigned int ulPllReg = 0;
+
+ pPLL->inputFreq = DEFAULT_INPUT_CLOCK;
+ pPLL->clockType = clockType;
+
+ switch (clockType)
+ {
+ case MXCLK_PLL:
+ ulPllReg = PEEK32(MXCLK_PLL_CTRL);
+ break;
+ case PRIMARY_PLL:
+ ulPllReg = PEEK32(PANEL_PLL_CTRL);
+ break;
+ case SECONDARY_PLL:
+ ulPllReg = PEEK32(CRT_PLL_CTRL);
+ break;
+ case VGA0_PLL:
+ ulPllReg = PEEK32(VGA_PLL0_CTRL);
+ break;
+ case VGA1_PLL:
+ ulPllReg = PEEK32(VGA_PLL1_CTRL);
+ break;
+ }
+
+ pPLL->M = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, M);
+ pPLL->N = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, N);
+ pPLL->OD = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, OD);
+ pPLL->POD = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, POD);
+
+ return calcPLL(pPLL);
}
unsigned int getChipClock(void)
{
- pll_value_t pll;
+ pll_value_t pll;
#if 1
if(getChipType() == SM750LE)
return MHz(130);
#endif
- return getPllValue(MXCLK_PLL, &pll);
+ return getPllValue(MXCLK_PLL, &pll);
}
*/
void setChipClock(unsigned int frequency)
{
- pll_value_t pll;
- unsigned int ulActualMxClk;
+ pll_value_t pll;
+ unsigned int ulActualMxClk;
#if 1
- /* Cheok_0509: For SM750LE, the chip clock is fixed. Nothing to set. */
- if (getChipType() == SM750LE)
- return;
+ /* Cheok_0509: For SM750LE, the chip clock is fixed. Nothing to set. */
+ if (getChipType() == SM750LE)
+ return;
#endif
- if (frequency != 0)
- {
- /*
- * Set up PLL, a structure to hold the value to be set in clocks.
- */
- pll.inputFreq = DEFAULT_INPUT_CLOCK; /* Defined in CLOCK.H */
- pll.clockType = MXCLK_PLL;
-
- /*
- * Call calcPllValue() to fill up the other fields for PLL structure.
- * Sometime, the chip cannot set up the exact clock required by User.
- * Return value from calcPllValue() gives the actual possible clock.
- */
- ulActualMxClk = calcPllValue(frequency, &pll);
-
- /* Master Clock Control: MXCLK_PLL */
- POKE32(MXCLK_PLL_CTRL, formatPllReg(&pll));
- }
+ if (frequency != 0)
+ {
+ /*
+ * Set up PLL, a structure to hold the value to be set in clocks.
+ */
+ pll.inputFreq = DEFAULT_INPUT_CLOCK; /* Defined in CLOCK.H */
+ pll.clockType = MXCLK_PLL;
+
+ /*
+ * Call calcPllValue() to fill up the other fields for PLL structure.
+ * Sometime, the chip cannot set up the exact clock required by User.
+ * Return value from calcPllValue() gives the actual possible clock.
+ */
+ ulActualMxClk = calcPllValue(frequency, &pll);
+
+ /* Master Clock Control: MXCLK_PLL */
+ POKE32(MXCLK_PLL_CTRL, formatPllReg(&pll));
+ }
}
void setMemoryClock(unsigned int frequency)
{
- unsigned int ulReg, divisor;
+ unsigned int ulReg, divisor;
#if 1
/* Cheok_0509: For SM750LE, the memory clock is fixed. Nothing to set. */
if (getChipType() == SM750LE)
return;
#endif
- if (frequency != 0)
- {
- /* Set the frequency to the maximum frequency that the DDR Memory can take
- which is 336MHz. */
- if (frequency > MHz(336))
- frequency = MHz(336);
-
- /* Calculate the divisor */
- divisor = (unsigned int) roundedDiv(getChipClock(), frequency);
-
- /* Set the corresponding divisor in the register. */
- ulReg = PEEK32(CURRENT_GATE);
- switch(divisor)
- {
- default:
- case 1:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_1);
- break;
- case 2:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_2);
- break;
- case 3:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_3);
- break;
- case 4:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_4);
- break;
- }
-
- setCurrentGate(ulReg);
- }
+ if (frequency != 0)
+ {
+ /* Set the frequency to the maximum frequency that the DDR Memory can take
+ which is 336MHz. */
+ if (frequency > MHz(336))
+ frequency = MHz(336);
+
+ /* Calculate the divisor */
+ divisor = (unsigned int) roundedDiv(getChipClock(), frequency);
+
+ /* Set the corresponding divisor in the register. */
+ ulReg = PEEK32(CURRENT_GATE);
+ switch(divisor)
+ {
+ default:
+ case 1:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_1);
+ break;
+ case 2:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_2);
+ break;
+ case 3:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_3);
+ break;
+ case 4:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_4);
+ break;
+ }
+
+ setCurrentGate(ulReg);
+ }
}
*/
void setMasterClock(unsigned int frequency)
{
- unsigned int ulReg, divisor;
- #if 1
+ unsigned int ulReg, divisor;
+#if 1
/* Cheok_0509: For SM750LE, the memory clock is fixed. Nothing to set. */
if (getChipType() == SM750LE)
return;
#endif
- if (frequency != 0)
- {
- /* Set the frequency to the maximum frequency that the SM750 engine can
- run, which is about 190 MHz. */
- if (frequency > MHz(190))
- frequency = MHz(190);
-
- /* Calculate the divisor */
- divisor = (unsigned int) roundedDiv(getChipClock(), frequency);
-
- /* Set the corresponding divisor in the register. */
- ulReg = PEEK32(CURRENT_GATE);
- switch(divisor)
- {
- default:
- case 3:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_3);
- break;
- case 4:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_4);
- break;
- case 6:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_6);
- break;
- case 8:
- ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_8);
- break;
- }
-
- setCurrentGate(ulReg);
- }
+ if (frequency != 0)
+ {
+ /* Set the frequency to the maximum frequency that the SM750 engine can
+ run, which is about 190 MHz. */
+ if (frequency > MHz(190))
+ frequency = MHz(190);
+
+ /* Calculate the divisor */
+ divisor = (unsigned int) roundedDiv(getChipClock(), frequency);
+
+ /* Set the corresponding divisor in the register. */
+ ulReg = PEEK32(CURRENT_GATE);
+ switch(divisor)
+ {
+ default:
+ case 3:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_3);
+ break;
+ case 4:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_4);
+ break;
+ case 6:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_6);
+ break;
+ case 8:
+ ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_8);
+ break;
+ }
+
+ setCurrentGate(ulReg);
+ }
}
/* get frame buffer size from GPIO */
reg = FIELD_GET(PEEK32(MISC_CTRL),MISC_CTRL,LOCALMEM_SIZE);
switch(reg){
- case MISC_CTRL_LOCALMEM_SIZE_8M: data = MB(8); break; /* 8 Mega byte */
- case MISC_CTRL_LOCALMEM_SIZE_16M: data = MB(16); break; /* 16 Mega byte */
- case MISC_CTRL_LOCALMEM_SIZE_32M: data = MB(32); break; /* 32 Mega byte */
- case MISC_CTRL_LOCALMEM_SIZE_64M: data = MB(64); break; /* 64 Mega byte */
- default: data = 0;break;
+ case MISC_CTRL_LOCALMEM_SIZE_8M: data = MB(8); break; /* 8 Mega byte */
+ case MISC_CTRL_LOCALMEM_SIZE_16M: data = MB(16); break; /* 16 Mega byte */
+ case MISC_CTRL_LOCALMEM_SIZE_32M: data = MB(32); break; /* 32 Mega byte */
+ case MISC_CTRL_LOCALMEM_SIZE_64M: data = MB(64); break; /* 64 Mega byte */
+ default: data = 0;break;
}
return data;
unsigned int absDiff(unsigned int a, unsigned int b)
{
- if ( a > b )
- return(a - b);
- else
- return(b - a);
+ if ( a > b )
+ return(a - b);
+ else
+ return(b - a);
}
#endif
{3,0,3,8},
};
- /* as sm750 register definition, N located in 2,15 and M located in 1,255 */
+ /* as sm750 register definition, N located in 2,15 and M located in 1,255 */
int N,M,X,d;
int xcnt;
int miniDiff;
#if 1
if (getChipType() == SM750LE)
- {
- /* SM750LE don't have prgrammable PLL and M/N values to work on.
- Just return the requested clock. */
- return request_orig;
- }
+ {
+ /* SM750LE don't have prgrammable PLL and M/N values to work on.
+ Just return the requested clock. */
+ return request_orig;
+ }
#endif
ret = 0;
{
unsigned int diff;
tmpClock = pll->inputFreq *M / N / X;
- diff = absDiff(tmpClock,request_orig);
+ diff = absDiff(tmpClock,request_orig);
if(diff < miniDiff)
{
pll->M = M;
pll_value_t *pPLL /* Structure to hold the value to be set in PLL */
)
{
- unsigned int M, N, OD, POD = 0, diff, pllClk, odPower, podPower;
- unsigned int bestDiff = 0xffffffff; /* biggest 32 bit unsigned number */
+ unsigned int M, N, OD, POD = 0, diff, pllClk, odPower, podPower;
+ unsigned int bestDiff = 0xffffffff; /* biggest 32 bit unsigned number */
unsigned int ret;
/* Init PLL structure to know states */
- pPLL->M = 0;
- pPLL->N = 0;
- pPLL->OD = 0;
- pPLL->POD = 0;
+ pPLL->M = 0;
+ pPLL->N = 0;
+ pPLL->OD = 0;
+ pPLL->POD = 0;
/* Sanity check: None at the moment */
/* Convert everything in Khz range in order to avoid calculation overflow */
- pPLL->inputFreq /= 1000;
- ulRequestClk /= 1000;
+ pPLL->inputFreq /= 1000;
+ ulRequestClk /= 1000;
#ifndef VALIDATION_CHIP
/* The maximum of post divider is 8. */
- for (POD=0; POD<=3; POD++)
+ for (POD=0; POD<=3; POD++)
#endif
- {
+ {
#ifndef VALIDATION_CHIP
- /* MXCLK_PLL does not have post divider. */
- if ((POD > 0) && (pPLL->clockType == MXCLK_PLL))
- break;
+ /* MXCLK_PLL does not have post divider. */
+ if ((POD > 0) && (pPLL->clockType == MXCLK_PLL))
+ break;
#endif
- /* Work out 2 to the power of POD */
- podPower = twoToPowerOfx(POD);
+ /* Work out 2 to the power of POD */
+ podPower = twoToPowerOfx(POD);
- /* OD has only 2 bits [15:14] and its value must between 0 to 3 */
- for (OD=0; OD<=3; OD++)
- {
- /* Work out 2 to the power of OD */
- odPower = twoToPowerOfx(OD);
+ /* OD has only 2 bits [15:14] and its value must between 0 to 3 */
+ for (OD=0; OD<=3; OD++)
+ {
+ /* Work out 2 to the power of OD */
+ odPower = twoToPowerOfx(OD);
#ifdef VALIDATION_CHIP
- if (odPower > 4)
- podPower = 4;
- else
- podPower = odPower;
+ if (odPower > 4)
+ podPower = 4;
+ else
+ podPower = odPower;
#endif
- /* N has 4 bits [11:8] and its value must between 2 and 15.
- The N == 1 will behave differently --> Result is not correct. */
- for (N=2; N<=15; N++)
- {
- /* The formula for PLL is ulRequestClk = inputFreq * M / N / (2^OD)
- In the following steps, we try to work out a best M value given the others are known.
- To avoid decimal calculation, we use 1000 as multiplier for up to 3 decimal places of accuracy.
- */
- M = ulRequestClk * N * odPower * 1000 / pPLL->inputFreq;
- M = roundedDiv(M, 1000);
-
- /* M field has only 8 bits, reject value bigger than 8 bits */
- if (M < 256)
- {
- /* Calculate the actual clock for a given M & N */
- pllClk = pPLL->inputFreq * M / N / odPower / podPower;
-
- /* How much are we different from the requirement */
- diff = absDiff(pllClk, ulRequestClk);
-
- if (diff < bestDiff)
- {
- bestDiff = diff;
-
- /* Store M and N values */
- pPLL->M = M;
- pPLL->N = N;
- pPLL->OD = OD;
+ /* N has 4 bits [11:8] and its value must between 2 and 15.
+ The N == 1 will behave differently --> Result is not correct. */
+ for (N=2; N<=15; N++)
+ {
+ /* The formula for PLL is ulRequestClk = inputFreq * M / N / (2^OD)
+ In the following steps, we try to work out a best M value given the others are known.
+ To avoid decimal calculation, we use 1000 as multiplier for up to 3 decimal places of accuracy.
+ */
+ M = ulRequestClk * N * odPower * 1000 / pPLL->inputFreq;
+ M = roundedDiv(M, 1000);
+
+ /* M field has only 8 bits, reject value bigger than 8 bits */
+ if (M < 256)
+ {
+ /* Calculate the actual clock for a given M & N */
+ pllClk = pPLL->inputFreq * M / N / odPower / podPower;
+
+ /* How much are we different from the requirement */
+ diff = absDiff(pllClk, ulRequestClk);
+
+ if (diff < bestDiff)
+ {
+ bestDiff = diff;
+
+ /* Store M and N values */
+ pPLL->M = M;
+ pPLL->N = N;
+ pPLL->OD = OD;
#ifdef VALIDATION_CHIP
- if (OD > 2)
- POD = 2;
- else
- POD = OD;
+ if (OD > 2)
+ POD = 2;
+ else
+ POD = OD;
#endif
- pPLL->POD = POD;
- }
- }
- }
- }
- }
+ pPLL->POD = POD;
+ }
+ }
+ }
+ }
+ }
/* Restore input frequency from Khz to hz unit */
// pPLL->inputFreq *= 1000;
- ulRequestClk *= 1000;
- pPLL->inputFreq = DEFAULT_INPUT_CLOCK; /* Default reference clock */
+ ulRequestClk *= 1000;
+ pPLL->inputFreq = DEFAULT_INPUT_CLOCK; /* Default reference clock */
/* Output debug information */
- //DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Requested Frequency = %d\n", ulRequestClk));
- //DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Input CLK = %dHz, M=%d, N=%d, OD=%d, POD=%d\n", pPLL->inputFreq, pPLL->M, pPLL->N, pPLL->OD, pPLL->POD));
+ //DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Requested Frequency = %d\n", ulRequestClk));
+ //DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Input CLK = %dHz, M=%d, N=%d, OD=%d, POD=%d\n", pPLL->inputFreq, pPLL->M, pPLL->N, pPLL->OD, pPLL->POD));
/* Return actual frequency that the PLL can set */
ret = calcPLL(pPLL);
- return ret;
+ return ret;
}
unsigned int formatPllReg(pll_value_t *pPLL)
{
- unsigned int ulPllReg = 0;
+ unsigned int ulPllReg = 0;
/* Note that all PLL's have the same format. Here, we just use Panel PLL parameter
to work out the bit fields in the register.
On returning a 32 bit number, the value can be applied to any PLL in the calling function.
*/
- ulPllReg =
- FIELD_SET( 0, PANEL_PLL_CTRL, BYPASS, OFF)
- | FIELD_SET( 0, PANEL_PLL_CTRL, POWER, ON)
- | FIELD_SET( 0, PANEL_PLL_CTRL, INPUT, OSC)
+ ulPllReg =
+ FIELD_SET( 0, PANEL_PLL_CTRL, BYPASS, OFF)
+ | FIELD_SET( 0, PANEL_PLL_CTRL, POWER, ON)
+ | FIELD_SET( 0, PANEL_PLL_CTRL, INPUT, OSC)
#ifndef VALIDATION_CHIP
- | FIELD_VALUE(0, PANEL_PLL_CTRL, POD, pPLL->POD)
+ | FIELD_VALUE(0, PANEL_PLL_CTRL, POD, pPLL->POD)
#endif
- | FIELD_VALUE(0, PANEL_PLL_CTRL, OD, pPLL->OD)
- | FIELD_VALUE(0, PANEL_PLL_CTRL, N, pPLL->N)
- | FIELD_VALUE(0, PANEL_PLL_CTRL, M, pPLL->M);
+ | FIELD_VALUE(0, PANEL_PLL_CTRL, OD, pPLL->OD)
+ | FIELD_VALUE(0, PANEL_PLL_CTRL, N, pPLL->N)
+ | FIELD_VALUE(0, PANEL_PLL_CTRL, M, pPLL->M);
return ulPllReg;
}
projects / cascardo / linux.git / commitdiff