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-rw-r--r--cpu/ppc4xx/cpu.c233
1 files changed, 131 insertions, 102 deletions
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index d721e46..6c61953 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -38,122 +38,114 @@
#include <ppc4xx.h>
+#if defined(CONFIG_405GP)
+#define PCI_ARBITER_ENABLED (mfdcr(strap) & PSR_PCI_ARBIT_EN)
+#define PCI_ASYNC_ENABLED (mfdcr(strap) & PSR_PCI_ASYNC_EN)
+#endif
+
+#if defined(CONFIG_405EP)
+#define PCI_ARBITER_ENABLED (mfdcr(cpc0_pci) & CPC0_PCI_ARBIT_EN)
+#define I2C_BOOTROM_ENABLED (mfdcr(cpc0_boot) & CPC0_BOOT_SEP)
+#endif
+
+#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
+#define SDR0_SDSTP1_PAE (0x80000000 >> 21)
+#define SDR0_SDSTP1_PAME (0x80000000 >> 27)
+
+#define PCI_ARBITER_ENABLED (mfdcr(cpc0_strp1) & SDR0_SDSTP1_PAE)
+#define PCI_ASYNC_ENABLED (mfdcr(cpc0_strp1) & SDR0_SDSTP1_PAME)
+#endif
+
+#if defined(CONFIG_440GP)
+#define CPC0_STRP1_PAE (0x80000000 >> 11)
+
+#define PCI_ARBITER_ENABLED (mfdcr(cpc0_strp1) & CPC0_STRP1_PAE)
+#endif
+
+#if defined(CONFIG_440GX)
+#define SDR0_SDSTP1_PAE (0x80000000 >> 13)
+
+#define PCI_ARBITER_ENABLED (mfdcr(cpc0_strp1) & SDR0_SDSTP1_PAE)
+#endif
+
+#if defined(CONFIG_440)
+#define FREQ_EBC (sys_info.freqEPB)
+#else
+#define FREQ_EBC (sys_info.freqPLB / sys_info.pllExtBusDiv)
+#endif
+
+
#if defined(CONFIG_440)
-static int do_chip_reset( unsigned long sys0, unsigned long sys1 );
+static int do_chip_reset(unsigned long sys0, unsigned long sys1);
#endif
-/* ------------------------------------------------------------------------- */
int checkcpu (void)
{
-#if defined(CONFIG_405GP) || \
- defined(CONFIG_405CR) || \
- defined(CONFIG_405EP) || \
- defined(CONFIG_440) || \
- defined(CONFIG_IOP480)
- uint pvr = get_pvr();
-#endif
-#if defined(CONFIG_405GP) || \
- defined(CONFIG_405CR) || \
- defined(CONFIG_405EP) || \
- defined(CONFIG_IOP480)
+#if !defined(CONFIG_405) /* not used on Xilinx 405 FPGA implementations */
DECLARE_GLOBAL_DATA_PTR;
-
+ uint pvr = get_pvr();
ulong clock = gd->cpu_clk;
char buf[32];
-#endif
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP)
- PPC405_SYS_INFO sys_info;
+#if !defined(CONFIG_IOP480)
+ sys_info_t sys_info;
puts ("CPU: ");
get_sys_info(&sys_info);
-#ifdef CONFIG_405GP
- puts ("AMCC PowerPC 405GP");
- if (pvr == PVR_405GPR_RB) {
- putc('r');
- }
- puts (" Rev. ");
-#endif
-#ifdef CONFIG_405CR
- puts ("AMCC PowerPC 405CR Rev. ");
+ puts("AMCC PowerPC 4");
+
+#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP)
+ puts("05");
#endif
-#ifdef CONFIG_405EP
- puts ("AMCC PowerPC 405EP Rev. ");
+#if defined(CONFIG_440)
+ puts("40");
#endif
+
switch (pvr) {
case PVR_405GP_RB:
- case PVR_405GPR_RB:
- putc('B');
+ puts("GP Rev. B");
break;
+
case PVR_405GP_RC:
-#ifdef CONFIG_405CR
- case PVR_405CR_RC:
-#endif
- putc('C');
+ puts("GP Rev. C");
break;
+
case PVR_405GP_RD:
- putc('D');
+ puts("GP Rev. D");
break;
+
#ifdef CONFIG_405GP
- case PVR_405GP_RE:
- putc('E');
+ case PVR_405GP_RE: /* 405GP rev E and 405CR rev C have same PVR */
+ puts("GP Rev. E");
break;
#endif
+
case PVR_405CR_RA:
- putc('A');
+ puts("CR Rev. A");
break;
+
case PVR_405CR_RB:
- case PVR_405EP_RB:
- putc('B');
- break;
- default:
- printf ("? (PVR=%08x)", pvr);
+ puts("CR Rev. B");
break;
- }
-
- printf (" at %s MHz (PLB=%lu, OPB=%lu, EBC=%lu MHz)\n", strmhz(buf, clock),
- sys_info.freqPLB / 1000000,
- sys_info.freqPLB / sys_info.pllOpbDiv / 1000000,
- sys_info.freqPLB / sys_info.pllExtBusDiv / 1000000);
-#if defined(CONFIG_405GP)
- if (mfdcr(strap) & PSR_PCI_ASYNC_EN) {
- printf (" PCI async ext clock used, ");
- } else {
- printf (" PCI sync clock at %lu MHz, ",
- sys_info.freqPLB / sys_info.pllPciDiv / 1000000);
- }
- printf ("%sternal PCI arbiter enabled\n",
- (mfdcr(strap) & PSR_PCI_ARBIT_EN) ? "in" : "ex");
-#elif defined(CONFIG_405EP)
- printf (" IIC Boot EEPROM %sabled\n",
- (mfdcr(cpc0_boot) & CPC0_BOOT_SEP) ? "en" : "dis");
- printf (" PCI async ext clock used, ");
- printf ("%sternal PCI arbiter enabled\n",
- (mfdcr(cpc0_pci) & CPC0_PCI_ARBIT_EN) ? "in" : "ex");
+#ifdef CONFIG_405CR
+ case PVR_405CR_RC: /* 405GP rev E and 405CR rev C have same PVR */
+ puts("CR Rev. C");
+ break;
#endif
-#if defined(CONFIG_405EP)
- printf (" 16 kB I-Cache 16 kB D-Cache");
-#else
- printf (" 16 kB I-Cache %d kB D-Cache",
- ((pvr | 0x00000001) == PVR_405GPR_RB) ? 16 : 8);
-#endif
-#endif /* defined(CONFIG_405GP) || defined(CONFIG_405CR) */
+ case PVR_405GPR_RB:
+ puts("GPr Rev. B");
+ break;
-#ifdef CONFIG_IOP480
- printf ("PLX IOP480 (PVR=%08x)", pvr);
- printf (" at %s MHz:", strmhz(buf, clock));
- printf (" %u kB I-Cache", 4);
- printf (" %u kB D-Cache", 2);
-#endif
+ case PVR_405EP_RB:
+ puts("EP Rev. B");
+ break;
#if defined(CONFIG_440)
- puts ("AMCC PowerPC 440");
- switch(pvr) {
case PVR_440GP_RB:
puts("GP Rev. B");
/* See errata 1.12: CHIP_4 */
@@ -166,40 +158,96 @@ int checkcpu (void)
mfdcr(cpc0_strp1) );
}
break;
+
case PVR_440GP_RC:
puts("GP Rev. C");
break;
+
case PVR_440GX_RA:
puts("GX Rev. A");
break;
+
case PVR_440GX_RB:
puts("GX Rev. B");
break;
+
case PVR_440GX_RC:
puts("GX Rev. C");
break;
+
case PVR_440GX_RF:
puts("GX Rev. F");
break;
+
case PVR_440EP_RA:
puts("EP Rev. A");
break;
+
#ifdef CONFIG_440EP
case PVR_440EP_RB: /* 440EP rev B and 440GR rev A have same PVR */
puts("EP Rev. B");
break;
#endif /* CONFIG_440EP */
+
#ifdef CONFIG_440GR
case PVR_440GR_RA: /* 440EP rev B and 440GR rev A have same PVR */
puts("GR Rev. A");
break;
#endif /* CONFIG_440GR */
+#endif /* CONFIG_440 */
+
default:
printf (" UNKNOWN (PVR=%08x)", pvr);
break;
}
+
+ printf (" at %s MHz (PLB=%lu, OPB=%lu, EBC=%lu MHz)\n", strmhz(buf, clock),
+ sys_info.freqPLB / 1000000,
+ sys_info.freqPLB / sys_info.pllOpbDiv / 1000000,
+ FREQ_EBC / 1000000);
+
+#if defined(I2C_BOOTROM_ENABLED)
+ printf (" IIC Boot EEPROM %sabled\n", I2C_BOOTROM_ENABLED ? "en" : "dis");
+#endif
+
+#if defined(PCI_ARBITER_ENABLED)
+ printf (" %sternal PCI arbiter enabled",
+ (PCI_ARBITER_ENABLED) ? "In" : "Ex");
+#endif
+
+#if defined(PCI_ASYNC_ENABLED)
+ if (PCI_ASYNC_ENABLED) {
+ printf (", PCI async ext clock used");
+ } else {
+ printf (", PCI sync clock at %lu MHz",
+ sys_info.freqPLB / sys_info.pllPciDiv / 1000000);
+ }
#endif
- puts ("\n");
+
+#if defined(PCI_ARBITER_ENABLED) || defined(PCI_ASYNC_ENABLED)
+ putc('\n');
+#endif
+
+#if defined(CONFIG_405EP)
+ printf (" 16 kB I-Cache 16 kB D-Cache");
+#elif defined(CONFIG_440)
+ printf (" 32 kB I-Cache 32 kB D-Cache");
+#else
+ printf (" 16 kB I-Cache %d kB D-Cache",
+ ((pvr | 0x00000001) == PVR_405GPR_RB) ? 16 : 8);
+#endif
+#endif /* !defined(CONFIG_IOP480) */
+
+#if defined(CONFIG_IOP480)
+ printf ("PLX IOP480 (PVR=%08x)", pvr);
+ printf (" at %s MHz:", strmhz(buf, clock));
+ printf (" %u kB I-Cache", 4);
+ printf (" %u kB D-Cache", 2);
+#endif
+
+#endif /* !defined(CONFIG_405) */
+
+ putc ('\n');
return 0;
}
@@ -230,8 +278,7 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
#if defined(CONFIG_440)
-static
-int do_chip_reset (unsigned long sys0, unsigned long sys1)
+static int do_chip_reset (unsigned long sys0, unsigned long sys1)
{
/* Changes to cpc0_sys0 and cpc0_sys1 require chip
* reset.
@@ -252,31 +299,13 @@ int do_chip_reset (unsigned long sys0, unsigned long sys1)
*/
unsigned long get_tbclk (void)
{
-#if defined(CONFIG_440)
-
+#if !defined(CONFIG_IOP480)
sys_info_t sys_info;
get_sys_info(&sys_info);
return (sys_info.freqProcessor);
-
-#elif defined(CONFIG_405GP) || \
- defined(CONFIG_405CR) || \
- defined(CONFIG_405) || \
- defined(CONFIG_405EP)
-
- PPC405_SYS_INFO sys_info;
-
- get_sys_info(&sys_info);
- return (sys_info.freqProcessor);
-
-#elif defined(CONFIG_IOP480)
-
- return (66000000);
-
#else
-
-# error get_tbclk() not implemented
-
+ return (66000000);
#endif
}
generated by cgit v1.1 at 2024-12-18 21:15:24 +0000