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-rw-r--r--cpu/mpc86xx/cpu.c308
1 files changed, 15 insertions, 293 deletions
diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 5c6c2ee..e21b051 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -32,7 +32,7 @@
#include <ft_build.h>
#endif
-extern unsigned long get_board_sys_clk(ulong dummy);
+#include "../board/mpc8641hpcn/pixis.h"
static __inline__ unsigned long get_dbat3u (void)
@@ -131,10 +131,10 @@ int checkcpu (void)
printf(" LBC: unknown (lcrr: 0x%08x)\n", lcrr);
}
- printf(" L2: ");
- if (get_l2cr() & 0x80000000)
+ printf(" L2: ");
+ if (get_l2cr() & 0x80000000)
printf("Enabled\n");
- else
+ else
printf("Disabled\n");
return 0;
@@ -158,298 +158,21 @@ soft_restart(unsigned long addr)
__asm__ __volatile__ ("rfi");
#else /* CONFIG_MPC8641HPCN */
- out8(PIXIS_BASE+PIXIS_RST,0);
+ out8(PIXIS_BASE+PIXIS_RST,0);
#endif /* !CONFIG_MPC8641HPCN */
while(1); /* not reached */
}
-
-#ifdef CONFIG_MPC8641HPCN
-
-int set_px_sysclk(ulong sysclk)
-{
- u8 sysclk_s, sysclk_r, sysclk_v, vclkh, vclkl, sysclk_aux;
-
- /* Per table 27, page 58 of MPC8641HPCN spec*/
- 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 tmp, mask = 0x1C;
- 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 tmp, mask = 0x04;
- 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);
- tmp = in8(PIXIS_BASE + PIXIS_VCTL);
- tmp &= ~ 0x08; /* setting VCTL[WDEN] to 0 to disable watch dog */
- 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,intarr_len=0, decarr_len=0, mulconst, 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; /* Break from loop once the end of string is reached */
- }
-
- intarr[i] = strptr[i];
- i++;
- }
-
- intarr_len = i; /* Assign length of integer part to intarr_len*/
- intarr[i] = '\0'; /* */
-
- if(no_dec)
- {
- mulconst=10; /* Currently needed only for single digit corepll ratios */
- 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 = mulconst*10;
- decval = simple_strtoul(decarr,NULL,10);
- }
-
- intval = simple_strtoul(intarr,NULL,10);
- intval = intval*mulconst;
-
- retval = intval+decval;
-
- return retval;
-
-}
-
-
-#endif /* CONFIG_MPC8641HPCN */
-
-
-/* no generic way to do board reset. simply call soft_reset. */
+/*
+ * No generic way to do board reset. Simply call soft_reset.
+ */
void
-do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
- char cmd;
- ulong addr, val;
- ulong corepll;
+ char cmd;
+ ulong addr, val;
+ ulong corepll;
#ifdef CFG_RESET_ADDRESS
addr = CFG_RESET_ADDRESS;
@@ -478,11 +201,11 @@ do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
__asm__ __volatile__ ("isync");
__asm__ __volatile__ ("sync");
- soft_restart(addr);
+ soft_restart(addr);
#else /* CONFIG_MPC8641HPCN */
- if (argc > 1) {
+ if (argc > 1) {
cmd = argv[1][1];
switch(cmd) {
case 'f': /* reset with frequency changed */
@@ -560,7 +283,7 @@ my_usage:
printf("For example: reset cf 40 2.5 10\n");
printf("See MPC8641HPCN Design Workbook for valid values of command line parameters.\n");
return;
- } else
+ } else
out8(PIXIS_BASE+PIXIS_RST,0);
#endif /* !CONFIG_MPC8641HPCN */
@@ -598,7 +321,6 @@ void dma_init(void)
dma->satr0 = 0x00040000;
dma->datr0 = 0x00040000;
asm("sync; isync");
- return;
}
uint dma_check(void)
generated by cgit v1.1 at 2024-12-19 10:20:34 +0000