First cut at moving the PIXIS platform code out of the 86xx cpu directory and into board/mpc8641hpcn where it belongs. Signed-off-by: Jon Loeliger <jdl@freescale.com>master
Jon Loeliger
19 years ago
committed by
Jon Loeliger
parent
38cee12dcf
commit
126aa70f10
@ -0,0 +1,324 @@ |
||||
/*
|
||||
* Copyright 2006 Freescale Semiconductor |
||||
* Jeff Brown |
||||
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com) |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
#include <watchdog.h> |
||||
#include <command.h> |
||||
#include <asm/cache.h> |
||||
#include <mpc86xx.h> |
||||
|
||||
#include "pixis.h" |
||||
|
||||
|
||||
/*
|
||||
* Per table 27, page 58 of MPC8641HPCN spec. |
||||
*/ |
||||
int set_px_sysclk(ulong sysclk) |
||||
{ |
||||
u8 sysclk_s, sysclk_r, sysclk_v, vclkh, vclkl, sysclk_aux; |
||||
|
||||
switch (sysclk) { |
||||
case 33: |
||||
sysclk_s = 0x04; |
||||
sysclk_r = 0x04; |
||||
sysclk_v = 0x07; |
||||
sysclk_aux = 0x00; |
||||
break; |
||||
case 40: |
||||
sysclk_s = 0x01; |
||||
sysclk_r = 0x1F; |
||||
sysclk_v = 0x20; |
||||
sysclk_aux = 0x01; |
||||
break; |
||||
case 50: |
||||
sysclk_s = 0x01; |
||||
sysclk_r = 0x1F; |
||||
sysclk_v = 0x2A; |
||||
sysclk_aux = 0x02; |
||||
break; |
||||
case 66: |
||||
sysclk_s = 0x01; |
||||
sysclk_r = 0x04; |
||||
sysclk_v = 0x04; |
||||
sysclk_aux = 0x03; |
||||
break; |
||||
case 83: |
||||
sysclk_s = 0x01; |
||||
sysclk_r = 0x1F; |
||||
sysclk_v = 0x4B; |
||||
sysclk_aux = 0x04; |
||||
break; |
||||
case 100: |
||||
sysclk_s = 0x01; |
||||
sysclk_r = 0x1F; |
||||
sysclk_v = 0x5C; |
||||
sysclk_aux = 0x05; |
||||
break; |
||||
case 134: |
||||
sysclk_s = 0x06; |
||||
sysclk_r = 0x1F; |
||||
sysclk_v = 0x3B; |
||||
sysclk_aux = 0x06; |
||||
break; |
||||
case 166: |
||||
sysclk_s = 0x06; |
||||
sysclk_r = 0x1F; |
||||
sysclk_v = 0x4B; |
||||
sysclk_aux = 0x07; |
||||
break; |
||||
default: |
||||
printf("Unsupported SYSCLK frequency.\n"); |
||||
return 0; |
||||
} |
||||
|
||||
vclkh = (sysclk_s << 5) | sysclk_r ; |
||||
vclkl = sysclk_v; |
||||
|
||||
out8(PIXIS_BASE + PIXIS_VCLKH, vclkh); |
||||
out8(PIXIS_BASE + PIXIS_VCLKL, vclkl); |
||||
|
||||
out8(PIXIS_BASE + PIXIS_AUX,sysclk_aux); |
||||
|
||||
return 1; |
||||
} |
||||
|
||||
|
||||
int set_px_mpxpll(ulong mpxpll) |
||||
{ |
||||
u8 tmp; |
||||
u8 val; |
||||
|
||||
switch (mpxpll) { |
||||
case 2: |
||||
case 4: |
||||
case 6: |
||||
case 8: |
||||
case 10: |
||||
case 12: |
||||
case 14: |
||||
case 16: |
||||
val = (u8)mpxpll; |
||||
break; |
||||
default: |
||||
printf("Unsupported MPXPLL ratio.\n"); |
||||
return 0; |
||||
} |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VSPEED1); |
||||
tmp = (tmp & 0xF0) | (val & 0x0F); |
||||
out8(PIXIS_BASE + PIXIS_VSPEED1, tmp); |
||||
|
||||
return 1; |
||||
} |
||||
|
||||
|
||||
int set_px_corepll(ulong corepll) |
||||
{ |
||||
u8 tmp; |
||||
u8 val; |
||||
|
||||
switch ((int)corepll) { |
||||
case 20: |
||||
val = 0x08; |
||||
break; |
||||
case 25: |
||||
val = 0x0C; |
||||
break; |
||||
case 30: |
||||
val = 0x10; |
||||
break; |
||||
case 35: |
||||
val = 0x1C; |
||||
break; |
||||
case 40: |
||||
val = 0x14; |
||||
break; |
||||
case 45: |
||||
val = 0x0E; |
||||
break; |
||||
default: |
||||
printf("Unsupported COREPLL ratio.\n"); |
||||
return 0; |
||||
} |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VSPEED0); |
||||
tmp = (tmp & 0xE0) | (val & 0x1F); |
||||
out8(PIXIS_BASE + PIXIS_VSPEED0, tmp); |
||||
|
||||
return 1; |
||||
} |
||||
|
||||
|
||||
void read_from_px_regs(int set) |
||||
{ |
||||
u8 mask = 0x1C; |
||||
u8 tmp = in8(PIXIS_BASE + PIXIS_VCFGEN0); |
||||
|
||||
if (set) |
||||
tmp = tmp | mask; |
||||
else |
||||
tmp = tmp & ~mask; |
||||
out8(PIXIS_BASE + PIXIS_VCFGEN0, tmp); |
||||
} |
||||
|
||||
|
||||
void read_from_px_regs_altbank(int set) |
||||
{ |
||||
u8 mask = 0x04; |
||||
u8 tmp = in8(PIXIS_BASE + PIXIS_VCFGEN1); |
||||
|
||||
if (set) |
||||
tmp = tmp | mask; |
||||
else |
||||
tmp = tmp & ~mask; |
||||
out8(PIXIS_BASE + PIXIS_VCFGEN1, tmp); |
||||
} |
||||
|
||||
|
||||
void set_altbank(void) |
||||
{ |
||||
u8 tmp; |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VBOOT); |
||||
tmp ^= 0x40; |
||||
|
||||
out8(PIXIS_BASE + PIXIS_VBOOT, tmp); |
||||
} |
||||
|
||||
|
||||
void set_px_go(void) |
||||
{ |
||||
u8 tmp; |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VCTL); |
||||
tmp = tmp & 0x1E; |
||||
out8(PIXIS_BASE + PIXIS_VCTL, tmp); |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VCTL); |
||||
tmp = tmp | 0x01; |
||||
out8(PIXIS_BASE + PIXIS_VCTL, tmp); |
||||
} |
||||
|
||||
|
||||
void set_px_go_with_watchdog(void) |
||||
{ |
||||
u8 tmp; |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VCTL); |
||||
tmp = tmp & 0x1E; |
||||
out8(PIXIS_BASE + PIXIS_VCTL, tmp); |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VCTL); |
||||
tmp = tmp | 0x09; |
||||
out8(PIXIS_BASE + PIXIS_VCTL, tmp); |
||||
} |
||||
|
||||
|
||||
int disable_watchdog(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
||||
{ |
||||
u8 tmp; |
||||
|
||||
tmp = in8(PIXIS_BASE + PIXIS_VCTL); |
||||
tmp = tmp & 0x1E; |
||||
out8(PIXIS_BASE + PIXIS_VCTL, tmp); |
||||
|
||||
/* setting VCTL[WDEN] to 0 to disable watch dog */ |
||||
tmp = in8(PIXIS_BASE + PIXIS_VCTL); |
||||
tmp &= ~ 0x08; |
||||
out8(PIXIS_BASE + PIXIS_VCTL, tmp); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
|
||||
U_BOOT_CMD( |
||||
diswd, 1, 0, disable_watchdog, |
||||
"diswd - Disable watchdog timer \n", |
||||
NULL |
||||
); |
||||
|
||||
|
||||
/*
|
||||
* This function takes the non-integral cpu:mpx pll ratio |
||||
* and converts it to an integer that can be used to assign |
||||
* FPGA register values. |
||||
* input: strptr i.e. argv[2] |
||||
*/ |
||||
|
||||
ulong strfractoint(uchar *strptr) |
||||
{ |
||||
int i, j, retval; |
||||
int mulconst; |
||||
int intarr_len = 0, decarr_len = 0, no_dec = 0; |
||||
ulong intval = 0, decval = 0; |
||||
uchar intarr[3], decarr[3]; |
||||
|
||||
/* Assign the integer part to intarr[]
|
||||
* If there is no decimal point i.e. |
||||
* if the ratio is an integral value |
||||
* simply create the intarr. |
||||
*/ |
||||
i = 0; |
||||
while (strptr[i] != 46) { |
||||
if (strptr[i] == 0) { |
||||
no_dec = 1; |
||||
break; |
||||
} |
||||
intarr[i] = strptr[i]; |
||||
i++; |
||||
} |
||||
|
||||
/* Assign length of integer part to intarr_len. */ |
||||
intarr_len = i; |
||||
intarr[i] = '\0'; |
||||
|
||||
if (no_dec) { |
||||
/* Currently needed only for single digit corepll ratios */ |
||||
mulconst=10; |
||||
decval = 0; |
||||
} else { |
||||
j = 0; |
||||
i++; /* Skipping the decimal point */ |
||||
while ((strptr[i] > 47) && (strptr[i] < 58)) { |
||||
decarr[j] = strptr[i]; |
||||
i++; |
||||
j++; |
||||
} |
||||
|
||||
decarr_len = j; |
||||
decarr[j] = '\0'; |
||||
|
||||
mulconst = 1; |
||||
for (i = 0; i < decarr_len; i++) |
||||
mulconst *= 10; |
||||
decval = simple_strtoul(decarr, NULL, 10); |
||||
} |
||||
|
||||
intval = simple_strtoul(intarr, NULL, 10); |
||||
intval = intval * mulconst; |
||||
|
||||
retval = intval + decval; |
||||
|
||||
return retval; |
||||
} |
||||
@ -0,0 +1,33 @@ |
||||
/*
|
||||
* Copyright 2006 Freescale Semiconductor |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
extern int set_px_sysclk(ulong sysclk); |
||||
extern int set_px_mpxpll(ulong mpxpll); |
||||
extern int set_px_corepll(ulong corepll); |
||||
extern void read_from_px_regs(int set); |
||||
extern void read_from_px_regs_altbank(int set); |
||||
extern void set_altbank(void); |
||||
extern void set_px_go(void); |
||||
extern void set_px_go_with_watchdog(void); |
||||
extern int disable_watchdog(cmd_tbl_t *cmdtp, |
||||
int flag, int argc, char *argv[]); |
||||
extern ulong strfractoint(uchar *strptr); |
||||
Loading…
Reference in new issue