#include <mpc8xx.h>
#include <asm/cache.h>
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#include <libfdt_env.h>
+#include <fdt_support.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
static char *cpu_warning = "\n " \
"*** Warning: CPU Core has Silicon Bugs -- Check the Errata ***";
k = (immr << 16) | *((ushort *) & immap->im_cpm.cp_dparam[0xB0]);
m = 0;
+ suf = "";
/*
* Some boards use sockets so different CPUs can be used.
* We have to check chip version in run time.
*/
switch (k) {
- case 0x00020001: pre = 'P'; suf = ""; break;
- case 0x00030001: suf = ""; break;
+ case 0x00020001: pre = 'P'; break;
+ case 0x00030001: break;
case 0x00120003: suf = "A"; break;
case 0x00130003: suf = "A3"; break;
/* this value is not documented anywhere */
case 0x40000000: pre = 'P'; suf = "D"; m = 1; break;
/* MPC866P/MPC866T/MPC859T/MPC859DSL/MPC852T */
- case 0x08000003: pre = 'M'; suf = ""; m = 1;
+ case 0x08010004: /* Rev. A.0 */
+ suf = "A";
+ /* fall through */
+ case 0x08000003: /* Rev. 0.3 */
+ pre = 'M'; m = 1;
if (id_str == NULL)
id_str =
# if defined(CONFIG_MPC852T)
printf ("unknown M%s (0x%08x)", id_str, k);
-#if defined(CFG_866_CPUCLK_MIN) && defined(CFG_866_CPUCLK_MAX)
+#if defined(CONFIG_SYS_8xx_CPUCLK_MIN) && defined(CONFIG_SYS_8xx_CPUCLK_MAX)
printf (" at %s MHz [%d.%d...%d.%d MHz]\n ",
strmhz (buf, clock),
- CFG_866_CPUCLK_MIN / 1000000,
- ((CFG_866_CPUCLK_MIN % 1000000) + 50000) / 100000,
- CFG_866_CPUCLK_MAX / 1000000,
- ((CFG_866_CPUCLK_MAX % 1000000) + 50000) / 100000
+ CONFIG_SYS_8xx_CPUCLK_MIN / 1000000,
+ ((CONFIG_SYS_8xx_CPUCLK_MIN % 1000000) + 50000) / 100000,
+ CONFIG_SYS_8xx_CPUCLK_MAX / 1000000,
+ ((CONFIG_SYS_8xx_CPUCLK_MAX % 1000000) + 50000) / 100000
);
#else
printf (" at %s MHz: ", strmhz (buf, clock));
checkdcache () >> 10
);
- /* do we have a FEC (860T/P or 852/859/866)? */
+ /* do we have a FEC (860T/P or 852/859/866/885)? */
immap->im_cpm.cp_fec.fec_addr_low = 0x12345678;
if (immap->im_cpm.cp_fec.fec_addr_low == 0x12345678) {
default: suf = NULL; break;
}
+#ifndef CONFIG_MPC857
if (suf)
printf ("%cPC862%sZPnn%s", pre, mid, suf);
else
printf ("unknown MPC862 (0x%08x)", k);
+#else
+ if (suf)
+ printf ("%cPC857TZPnn%s", pre, suf); /* only 857T tested right now! */
+ else
+ printf ("unknown MPC857 (0x%08x)", k);
+#endif
printf (" at %s MHz:", strmhz (buf, clock));
int checkcpu (void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
ulong clock = gd->cpu_clk;
uint immr = get_immr (0); /* Return full IMMR contents */
uint pvr = get_pvr ();
int checkicache (void)
{
- volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
u32 cacheon = rd_ic_cst () & IDC_ENABLED;
int checkdcache (void)
{
- volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
u32 cacheon = rd_dc_cst () & IDC_ENABLED;
{
uint i;
uint addr = 0;
- volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
for (i = 0; i < size; i++) {
/* ------------------------------------------------------------------------- */
+#ifndef CONFIG_LWMON
+
int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong msr, addr;
- volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
immap->im_clkrst.car_plprcr |= PLPRCR_CSR; /* Checkstop Reset enable */
* Trying to execute the next instruction at a non-existing address
* should cause a machine check, resulting in reset
*/
-#ifdef CFG_RESET_ADDRESS
- addr = CFG_RESET_ADDRESS;
+#ifdef CONFIG_SYS_RESET_ADDRESS
+ addr = CONFIG_SYS_RESET_ADDRESS;
#else
/*
- * note: when CFG_MONITOR_BASE points to a RAM address, CFG_MONITOR_BASE
+ * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, CONFIG_SYS_MONITOR_BASE
* - sizeof (ulong) is usually a valid address. Better pick an address
- * known to be invalid on your system and assign it to CFG_RESET_ADDRESS.
+ * known to be invalid on your system and assign it to CONFIG_SYS_RESET_ADDRESS.
* "(ulong)-1" used to be a good choice for many systems...
*/
- addr = CFG_MONITOR_BASE - sizeof (ulong);
+ addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong);
#endif
((void (*)(void)) addr) ();
return 1;
}
+#else /* CONFIG_LWMON */
+
+/*
+ * On the LWMON board, the MCLR reset input of the PIC's on the board
+ * uses a 47K/1n RC combination which has a 47us time constant. The
+ * low signal on the HRESET pin of the CPU is only 512 clocks = 8 us
+ * and thus too short to reset the external hardware. So we use the
+ * watchdog to reset the board.
+ */
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ /* prevent triggering the watchdog */
+ disable_interrupts ();
+
+ /* make sure the watchdog is running */
+ reset_8xx_watchdog ((immap_t *) CONFIG_SYS_IMMR);
+
+ /* wait for watchdog reset */
+ while (1) {};
+
+ /* NOTREACHED */
+ return 1;
+}
+
+#endif /* CONFIG_LWMON */
+
/* ------------------------------------------------------------------------- */
/*
*/
unsigned long get_tbclk (void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
uint immr = get_immr (0); /* Return full IMMR contents */
volatile immap_t *immap = (volatile immap_t *)(immr & 0xFFFF0000);
ulong oscclk, factor, pll;
{
int re_enable = disable_interrupts ();
- reset_8xx_watchdog ((immap_t *) CFG_IMMR);
+ reset_8xx_watchdog ((immap_t *) CONFIG_SYS_IMMR);
if (re_enable)
enable_interrupts ();
}
+#endif /* CONFIG_WATCHDOG */
+
+#if defined(CONFIG_WATCHDOG) || defined(CONFIG_LWMON)
void reset_8xx_watchdog (volatile immap_t * immr)
{
immr->im_ioport.iop_padir |= WATCHDOG_BIT; /* Output */
immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT); /* active output */
+ immr->im_ioport.iop_padat ^= WATCHDOG_BIT; /* Toggle WDI */
+# elif defined(CONFIG_KUP4K) || defined(CONFIG_KUP4X)
+ /*
+ * The KUP4 boards uses a TPS3705 Watchdog
+ * with the trigger pin connected to port PA.5
+ */
+# define WATCHDOG_BIT 0x0400
+ immr->im_ioport.iop_papar &= ~(WATCHDOG_BIT); /* GPIO */
+ immr->im_ioport.iop_padir |= WATCHDOG_BIT; /* Output */
+ immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT); /* active output */
+
immr->im_ioport.iop_padat ^= WATCHDOG_BIT; /* Toggle WDI */
# else
/*
immr->im_siu_conf.sc_swsr = 0xaa39; /* write magic2 */
# endif /* CONFIG_LWMON */
}
-
#endif /* CONFIG_WATCHDOG */
-
-/* ------------------------------------------------------------------------- */
projects / oweals / u-boot.git / blobdiff