--- /dev/null
+/*
+ * (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);
+}
--- /dev/null
+/*
+ * (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);
+}
projects / u-boot / commitdiff