Initial revision

board/c2mon/c2mon.c

@@ -0,0 +1,266 @@
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define	_NOT_USED_	0xFFFFFFFF
+
+const uint sdram_table[] =
+{
+	/*
+	 * Single Read. (Offset 0 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
+	0x1FF77C47, /* last */
+	/*
+	 * SDRAM Initialization (offset 5 in UPMA RAM)
+	 *
+	 * This is no UPM entry point. The following definition uses
+	 * the remaining space to establish an initialization
+	 * sequence, which is executed by a RUN command.
+	 *
+	 */
+		    0x1FF77C34, 0xEFEABC34, 0x1FB57C35, /* last */
+	/*
+	 * Burst Read. (Offset 8 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
+	0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Single Write. (Offset 18 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Burst Write. (Offset 20 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
+	0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */
+					    _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Refresh  (Offset 30 in UPMA RAM)
+	 */
+	0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+	0xFFFFFC84, 0xFFFFFC07, /* last */
+				_NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Exception. (Offset 3c in UPMA RAM)
+	 */
+	0x7FFFFC07, /* last */
+		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+	unsigned char *s = getenv ("serial#");
+
+	puts ("Board: TTTech C2MON ");
+
+	for (; s && *s; ++s) {
+		if (*s == ' ')
+			break;
+		putc (*s);
+	}
+
+	putc ('\n');
+
+	return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	unsigned long reg;
+	long int size8, size9;
+	long int size = 0;
+
+	upmconfig (UPMA, (uint *)sdram_table, sizeof(sdram_table) / sizeof(uint));
+
+	/*
+	 * Preliminary prescaler for refresh (depends on number of
+	 * banks): This value is selected for four cycles every 62.4 us
+	 * with two SDRAM banks or four cycles every 31.2 us with one
+	 * bank. It will be adjusted after memory sizing.
+	 */
+	memctl->memc_mptpr = CFG_MPTPR_2BK_8K;
+
+	memctl->memc_mar = 0x00000088;
+
+	/*
+	 * Map controller bank 2 the SDRAM bank 2 at physical address 0.
+	 */
+	memctl->memc_or2 = CFG_OR2_PRELIM;
+	memctl->memc_br2 = CFG_BR2_PRELIM;
+
+	memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE));	/* no refresh yet */
+
+	udelay (200);
+
+	/* perform SDRAM initializsation sequence */
+
+	memctl->memc_mcr = 0x80004105;	/* SDRAM bank 0 */
+	udelay (1);
+	memctl->memc_mcr = 0x80004230;	/* SDRAM bank 0 - execute twice */
+	udelay (1);
+
+	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+
+	udelay (1000);
+
+	/*
+	 * Check Bank 0 Memory Size
+	 *
+	 * try 8 column mode
+	 */
+	size8 = dram_size (CFG_MAMR_8COL,
+			   (ulong *)SDRAM_BASE2_PRELIM,
+			   SDRAM_MAX_SIZE);
+
+	udelay (1000);
+
+	/*
+	 * try 9 column mode
+	 */
+	size9 = dram_size (CFG_MAMR_9COL,
+			   (ulong *) SDRAM_BASE2_PRELIM,
+			   SDRAM_MAX_SIZE);
+
+	if (size8 < size9) {		/* leave configuration at 9 columns */
+		size = size9;
+/*		debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20);	*/
+	} else {			/* back to 8 columns            */
+		size = size8;
+		memctl->memc_mamr = CFG_MAMR_8COL;
+		udelay (500);
+/*		debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20);	*/
+	}
+
+	udelay (1000);
+
+	/*
+	 * Adjust refresh rate depending on SDRAM type
+	 * For types > 128 MBit leave it at the current (fast) rate
+	 */
+	if (size < 0x02000000) {
+		/* reduce to 15.6 us (62.4 us / quad) */
+		memctl->memc_mptpr = CFG_MPTPR_2BK_4K;
+		udelay (1000);
+	}
+
+	/*
+	 * Final mapping
+	 */
+	memctl->memc_or2 = ((-size) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+	memctl->memc_br2 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+	/*
+	 * No bank 1
+	 *
+	 * invalidate bank
+	 */
+	memctl->memc_br3 = 0;
+
+	/* adjust refresh rate depending on SDRAM type, one bank */
+	reg = memctl->memc_mptpr;
+	reg >>= 1;			/* reduce to CFG_MPTPR_1BK_8K / _4K */
+	memctl->memc_mptpr = reg;
+
+	udelay (10000);
+
+	return (size);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base,
+						   long int maxsize)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	volatile long int *addr;
+	ulong cnt, val;
+	ulong save[32];			/* to make test non-destructive */
+	unsigned char i = 0;
+
+	memctl->memc_mamr = mamr_value;
+
+	for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+		addr = base + cnt;	/* pointer arith! */
+
+		save[i++] = *addr;
+		*addr = ~cnt;
+	}
+
+	/* write 0 to base address */
+	addr = base;
+	save[i] = *addr;
+	*addr = 0;
+
+	/* check at base address */
+	if ((val = *addr) != 0) {
+		*addr = save[i];
+		return (0);
+	}
+
+	for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+		addr = base + cnt;	/* pointer arith! */
+
+		val = *addr;
+		*addr = save[--i];
+
+		if (val != (~cnt)) {
+			return (cnt * sizeof (long));
+		}
+	}
+	return (maxsize);
+}

board/cogent/mb.c

@@ -0,0 +1,285 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 <board/cogent/dipsw.h>
+#include <board/cogent/lcd.h>
+#include <board/cogent/rtc.h>
+#include <board/cogent/par.h>
+#include <board/cogent/pci.h>
+
+/* ------------------------------------------------------------------------- */
+
+#if defined(CONFIG_8260)
+
+#include <ioports.h>
+
+/*
+ * I/O Port configuration table
+ *
+ * if conf is 1, then that port pin will be configured at boot time
+ * according to the five values podr/pdir/ppar/psor/pdat for that entry
+ */
+
+const iop_conf_t iop_conf_tab[4][32] = {
+
+    /* Port A configuration */
+    {	/*	      conf ppar psor pdir podr pdat */
+	/* PA31 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA30 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA29 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA28 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA27 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA26 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA25 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA24 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA23 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA22 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA21 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA20 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA19 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA18 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA17 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA16 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA15 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA14 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA13 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA12 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA11 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA10 */ {   0,   0,   0,   0,   0,   0   },
+	/* PA9  */ {   1,   1,   0,   1,   0,   0   },	/* SMC2 TXD */
+	/* PA8  */ {   1,   1,   0,   0,   0,   0   },	/* SMC2 RXD */
+	/* PA7  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA6  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA5  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA4  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA3  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA2  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA1  */ {   0,   0,   0,   0,   0,   0   },
+	/* PA0  */ {   0,   0,   0,   0,   0,   0   }
+    },
+
+
+    {   /*	      conf ppar psor pdir podr pdat */
+	/* PB31 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB30 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB29 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB28 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB27 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB26 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB25 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB24 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB23 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB22 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB21 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB20 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB19 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB18 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB17 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB16 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB15 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB14 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB13 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB12 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB11 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB10 */ {   0,   0,   0,   0,   0,   0   },
+	/* PB9  */ {   0,   0,   0,   0,   0,   0   },
+	/* PB8  */ {   0,   0,   0,   0,   0,   0   },
+	/* PB7  */ {   0,   0,   0,   0,   0,   0   },
+	/* PB6  */ {   0,   0,   0,   0,   0,   0   },
+	/* PB5  */ {   0,   0,   0,   0,   0,   0   },
+	/* PB4  */ {   0,   0,   0,   0,   0,   0   },
+	/* PB3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
+	/* PB2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
+	/* PB1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
+	/* PB0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
+    },
+
+
+    {   /*	      conf ppar psor pdir podr pdat */
+	/* PC31 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC30 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC29 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC28 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC27 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC26 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC25 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC24 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC23 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC22 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC21 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC20 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC19 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC18 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC17 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC16 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC15 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC14 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC13 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC12 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC11 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC10 */ {   0,   0,   0,   0,   0,   0   },
+	/* PC9  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC8  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC7  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC6  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC5  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC4  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC3  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC2  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC1  */ {   0,   0,   0,   0,   0,   0   },
+	/* PC0  */ {   0,   0,   0,   0,   0,   0   }
+    },
+
+
+    {   /*	      conf ppar psor pdir podr pdat */
+	/* PD31 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD30 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD29 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD28 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD27 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD26 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD25 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD24 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD23 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD22 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD21 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD20 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD19 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD18 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD17 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD16 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD15 */ {   1,   1,   1,   0,   0,   0   },	/* I2C SDA */
+	/* PD14 */ {   1,   1,   1,   0,   0,   0   },	/* I2C SCL */
+	/* PD13 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD12 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD11 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD10 */ {   0,   0,   0,   0,   0,   0   },
+	/* PD9  */ {   1,   1,   0,   1,   0,   0   },	/* SMC1 TXD */
+	/* PD8  */ {   1,   1,   0,   0,   0,   0   },	/* SMC1 RXD */
+	/* PD7  */ {   0,   0,   0,   0,   0,   0   },
+	/* PD6  */ {   0,   0,   0,   0,   0,   0   },
+	/* PD5  */ {   0,   0,   0,   0,   0,   0   },
+	/* PD4  */ {   0,   0,   0,   0,   0,   0   },
+	/* PD3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
+	/* PD2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
+	/* PD1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
+	/* PD0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
+    }
+};
+
+#endif	/* CONFIG_8260 */
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int
+checkboard(void)
+{
+    puts ("Board: Cogent " COGENT_MOTHERBOARD " motherboard with a "
+	COGENT_CPU_MODULE " CPU Module\n");
+    return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Miscelaneous platform dependent initialisations while still
+ * running in flash
+ */
+
+int misc_init_f (void)
+{
+    printf ("DIPSW: ");
+    dipsw_init();
+    return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int
+initdram(int board_type)
+{
+#if CONFIG_CMA111
+    return (32L * 1024L * 1024L);
+#else
+    unsigned char dipsw_val;
+    int dual, size0, size1;
+    long int memsize;
+
+    dipsw_val = dipsw_cooked();
+
+    dual = dipsw_val & 0x01;
+    size0 = (dipsw_val & 0x08) >> 3;
+    size1 = (dipsw_val & 0x04) >> 2;
+
+    if (size0)
+	if (size1)
+	    memsize = 16L * 1024L * 1024L;
+	else
+	    memsize =  1L * 1024L * 1024L;
+    else
+	if (size1)
+	    memsize =  4L * 1024L * 1024L;
+	else {
+	    printf("[Illegal dip switch settings - assuming 16Mbyte SIMMs] ");
+	    memsize = 16L * 1024L * 1024L; /* shouldn't happen - guess 16M */
+	}
+
+    if (dual)
+	memsize *= 2L;
+
+    return (memsize);
+#endif
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Miscelaneous platform dependent initialisations after monitor
+ * has been relocated into ram
+ */
+
+int misc_init_r (void)
+{
+    printf ("LCD:   ");
+    lcd_init();
+
+#if 0
+    printf ("RTC:   ");
+    rtc_init();
+
+    printf ("PAR:   ");
+    par_init();
+
+    printf ("KBM:   ");
+    kbm_init();
+
+    printf ("PCI:   ");
+    pci_init();
+#endif
+    return (0);
+}