Initial revision

1 files changed, 318 insertions, 0 deletions

diff --git a/board/siemens/IAD210/IAD210.c b/board/siemens/IAD210/IAD210.c
new file mode 100644
index 0000000000..489704633a
--- /dev/null
+++ b/board/siemens/IAD210/IAD210.c
@@ -0,0 +1,318 @@
+/*
+ * (C) Copyright 2001
+ * Paul Geerinckx
+ *
+ * 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>
+#include "atm.h"
+#include <i2c.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+/* used PLD registers */
+#  define PLD_GCR1_REG (unsigned char *) (0x10000000 + 0)
+#  define PLD_EXT_RES  (unsigned char *) (0x10000000 + 10)
+#  define PLD_EXT_FETH (unsigned char *) (0x10000000 + 11)
+#  define PLD_EXT_LED  (unsigned char *) (0x10000000 + 12)
+#  define PLD_EXT_X21  (unsigned char *) (0x10000000 + 13)
+
+#define	_NOT_USED_	0xFFFFFFFF
+
+const uint sdram_table[] =
+{
+	/*
+	 * Single Read. (Offset 0 in UPMA RAM)
+	 */
+	0xFE2DB004, 0xF0AA7004, 0xF0A5F400, 0xF3AFFC47, /* last */
+	_NOT_USED_,
+	/*
+	 * 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.
+	 *
+	 */
+		    0xFFFAF834, 0xFFE5B435, /* last */
+                                            _NOT_USED_,
+	/*
+	 * Burst Read. (Offset 8 in UPMA RAM)
+	 */
+	0xFE2DB004, 0xF0AF7404, 0xF0AFFC00, 0xF0AFFC00,
+	0xF0AFFC00, 0xF0AAF800, 0xF1A5E447, /* last */
+                                            _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Single Write. (Offset 18 in UPMA RAM)
+	 */
+	0xFE29B300, 0xF1A27304, 0xFFA5F747,  /* last */
+                                            _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Burst Write. (Offset 20 in UPMA RAM)
+	 */
+	0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
+	0xF1AAF804, 0xFFA5F447, /* last */
+			        _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Refresh  (Offset 30 in UPMA RAM)
+	 */
+	0xFFAC3884, 0xFFAC3404, 0xFFAFFC04, 0xFFAFFC84,
+	0xFFAFFC07, /* last */
+		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * MRS sequence  (Offset 38 in UPMA RAM)
+	 */
+	0xFFAAB834, 0xFFA57434, 0xFFAFFC05, /* last */
+                                            _NOT_USED_,
+	/*
+	 * Exception. (Offset 3c in UPMA RAM)
+	 */
+	0xFFAFFC04, 0xFFAFFC05, /* last */
+		                _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+
+long int initdram (int board_type)
+{
+    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
+    volatile memctl8xx_t *memctl = &immap->im_memctl;
+    volatile iop8xx_t      *iop    = &immap->im_ioport;
+    volatile fec_t         *fecp   = &immap->im_cpm.cp_fec;
+    long int size;
+
+    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;
+
+    memctl->memc_mar  = 0x00000088;
+
+    /*
+     * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
+     * preliminary addresses - these have to be modified after the
+     * SDRAM size has been determined.
+     */
+    memctl->memc_or2 = CFG_OR2_PRELIM;
+    memctl->memc_br2 = CFG_BR2_PRELIM;
+
+    memctl->memc_mamr = CFG_MAMR & (~(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_mcr  = 0x80004105;	/* SDRAM precharge */
+    udelay(1);
+    memctl->memc_mcr  = 0x80004030;	/* SDRAM 16x autorefresh */
+    udelay(1);
+    memctl->memc_mcr  = 0x80004138;	/* SDRAM upload parameters */
+    udelay(1);
+
+    memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+
+    udelay (1000);
+
+    /*
+     * Check Bank 0 Memory Size for re-configuration
+     *
+     */
+    size = dram_size (CFG_MAMR, (ulong *)SDRAM_BASE_PRELIM, SDRAM_MAX_SIZE);
+
+    udelay (1000);
+
+
+    memctl->memc_mamr = CFG_MAMR;
+    udelay (1000);
+
+    /*
+     * Final mapping
+     */
+    memctl->memc_or2 = ((-size) & 0xFFFF0000) | CFG_OR2_PRELIM;
+    memctl->memc_br2 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V);
+
+    udelay(10000);
+
+    /* prepare pin multiplexing for fast ethernet */
+
+    atmLoad();
+    fecp->fec_ecntrl = 0x00000004;  /* rev D3 pinmux SET */
+    iop->iop_pdpar |= 0x0080; /* set pin as MII_clock */
+
+
+    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);
+}
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+    return (0);
+}
+
+void board_serial_init(void)
+{
+  ;/* nothing to do here */
+}
+
+void board_ether_init(void)
+{
+    volatile immap_t       *immap  = (immap_t *)CFG_IMMR;
+    volatile iop8xx_t      *iop    = &immap->im_ioport;
+    volatile fec_t         *fecp   = &immap->im_cpm.cp_fec;
+
+  atmLoad();
+  fecp->fec_ecntrl = 0x00000004;  /* rev D3 pinmux SET */
+  iop->iop_pdpar |= 0x0080; /* set pin as MII_clock */
+}
+
+int board_pre_init (void)
+{
+    volatile immap_t       *immap  = (immap_t *)CFG_IMMR;
+    volatile cpmtimer8xx_t *timers = &immap->im_cpmtimer;
+    volatile memctl8xx_t   *memctl = &immap->im_memctl;
+    volatile iop8xx_t      *iop    = &immap->im_ioport;
+
+  /* configure the LED timing output pins - port A pin 4 */
+    iop->iop_papar = 0x0800;
+    iop->iop_padir = 0x0800;
+
+  /* start timer 2 for the 4hz LED blink rate */
+    timers->cpmt_tmr2 = 0xff2c;     /* 4hz for 64mhz */
+    timers->cpmt_trr2 = 0x000003d0; /* clk/16 , prescale=256 */
+    timers->cpmt_tgcr = 0x00000810; /* run timer 2 */
+
+  /* chip select for PLD access */
+    memctl->memc_br6  = 0x10000401;
+    memctl->memc_or6  = 0xFC000908;
+
+  /* PLD initial values ( set LEDs, remove reset on LXT) */
+
+    *PLD_GCR1_REG = 0x06;
+    *PLD_EXT_RES  = 0xC0;
+    *PLD_EXT_FETH = 0x40;
+    *PLD_EXT_LED  = 0xFF;
+    *PLD_EXT_X21  = 0x04;
+    return 0;
+}
+
+void board_get_enetaddr (uchar *addr)
+{
+    int i;
+    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
+    volatile cpm8xx_t	 *cpm    = &immap->im_cpm;
+    unsigned int rccrtmp;
+
+    char default_mac_addr[] = {0x00, 0x08, 0x01, 0x02, 0x03, 0x04};
+
+    for (i=0; i<6; i++)
+      addr[i] = default_mac_addr[i];
+
+    printf("There is an error in the i2c driver .. /n");
+    printf("You need to fix it first....../n");
+
+    rccrtmp = cpm->cp_rccr;
+    cpm->cp_rccr |= 0x0020;
+
+    i2c_reg_read(0xa0, 0);
+    printf ("seep = '-%c-%c-%c-%c-%c-%c-'\n",
+     i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0),
+     i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0) );
+
+    cpm->cp_rccr = rccrtmp;
+
+
+}