Initial revision

2 files changed, 1182 insertions, 0 deletions

diff --git a/board/gw8260/flash.c b/board/gw8260/flash.c
new file mode 100644
index 0000000..532dd19
--- /dev/null
+++ b/board/gw8260/flash.c
@@ -0,0 +1,523 @@
+/*
+ * (C) Copyright 2000
+ * Marius Groeger <mgroeger@sysgo.de>
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ *
+ * (C) Copyright 2000, 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2001
+ * Advent Networks, Inc. <http://www.adventnetworks.com>
+ * Oliver Brown <oliverb@alumni.utexas.net>
+ *
+ *--------------------------------------------------------------------
+ * 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
+ */
+
+/*********************************************************************/
+/* DESCRIPTION:
+ *   This file contains the flash routines for the GW8260 board.
+ *
+ *
+ *
+ * MODULE DEPENDENCY:
+ *   None
+ *
+ *
+ * RESTRICTIONS/LIMITATIONS:
+ *
+ *   Only supports the following flash devices:
+ *     AMD 29F080B
+ *     AMD 29F016D
+ *
+ * Copyright (c) 2001, Advent Networks, Inc.
+ *
+ */
+/*********************************************************************/
+
+#include <common.h>
+#include <mpc8260.h>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+static ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+
+/*********************************************************************/
+/*		      functions					     */
+/*********************************************************************/
+
+/*********************************************************************/
+/* NAME: flash_init() -	 initializes flash banks		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   This function initializes the flash bank(s).		     */
+/*								     */
+/* RETURNS:							     */
+/*   The size in bytes of the flash				     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+unsigned long flash_init (void)
+{
+    unsigned long size;
+    int i;
+
+    /* Init: no FLASHes known */
+    for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+	flash_info[i].flash_id = FLASH_UNKNOWN;
+    }
+
+    /* for now, only support the 4 MB Flash SIMM */
+    size = flash_get_size((vu_long *)CFG_FLASH0_BASE, &flash_info[0]);
+
+    /*
+     * protect monitor and environment sectors
+     */
+
+#if CFG_MONITOR_BASE >= CFG_FLASH0_BASE
+    flash_protect(FLAG_PROTECT_SET,
+		  CFG_MONITOR_BASE,
+		  CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+		  &flash_info[0]);
+#endif
+
+#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
+# ifndef  CFG_ENV_SIZE
+#  define CFG_ENV_SIZE	CFG_ENV_SECT_SIZE
+# endif
+    flash_protect(FLAG_PROTECT_SET,
+		  CFG_ENV_ADDR,
+		  CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+		  &flash_info[0]);
+#endif
+
+    return (CFG_FLASH0_SIZE * 1024 * 1024);  /*size*/
+}
+
+/*********************************************************************/
+/* NAME: flash_print_info() - prints flash imformation		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   This function prints the flash information.		     */
+/*								     */
+/* INPUTS:							     */
+/*   flash_info_t *info - flash information structure		     */
+/*								     */
+/* OUTPUTS:							     */
+/*   Displays flash information to console			     */
+/*								     */
+/* RETURNS:							     */
+/*   None							     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+void flash_print_info  (flash_info_t *info)
+{
+    int i;
+
+    if (info->flash_id == FLASH_UNKNOWN) {
+	printf ("missing or unknown FLASH type\n");
+	return;
+    }
+
+    switch ((info->flash_id >> 16) & 0xff) {
+    case 0x1:
+	printf ("AMD ");
+	break;
+    default:
+	printf ("Unknown Vendor ");
+	break;
+    }
+
+    switch (info->flash_id & FLASH_TYPEMASK) {
+    case AMD_ID_F040B:
+	printf ("AM29F040B (4 Mbit)\n");
+	break;
+    case AMD_ID_F080B:
+	printf ("AM29F080B (8 Mbit)\n");
+	break;
+    case AMD_ID_F016D:
+	printf ("AM29F016D (16 Mbit)\n");
+	break;
+    default:
+	printf ("Unknown Chip Type\n");
+	break;
+    }
+
+    printf ("  Size: %ld MB in %d Sectors\n",
+	    info->size >> 20, info->sector_count);
+
+    printf ("  Sector Start Addresses:");
+    for (i=0; i<info->sector_count; ++i) {
+	if ((i % 5) == 0)
+	    printf ("\n	  ");
+	printf (" %08lX%s",
+		info->start[i],
+		info->protect[i] ? " (RO)" : "	   "
+	    );
+    }
+    printf ("\n");
+    return;
+}
+
+/*********************************************************************/
+/*   The following code cannot be run from FLASH!		     */
+/*********************************************************************/
+
+/*********************************************************************/
+/* NAME: flash_get_size() - detects the flash size		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   1) Reads vendor ID and devices ID from the flash devices.	     */
+/*   2) Initializes flash info struct.				     */
+/*   3) Return the flash size					     */
+/*								     */
+/* INPUTS:							     */
+/*   vu_long *addr	- pointer to start of flash		     */
+/*   flash_info_t *info - flash information structure		     */
+/*								     */
+/* OUTPUTS:							     */
+/*   None							     */
+/*								     */
+/* RETURNS:							     */
+/*   Size of the flash in bytes, or 0 if device id is unknown.	     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*   Only supports the following devices:			     */
+/*     AM29F080D						     */
+/*     AM29F016D						     */
+/*								     */
+/*********************************************************************/
+static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+    short i;
+    vu_long vendor, devid;
+    ulong base = (ulong)addr;
+
+    /*printf("addr   = %08lx\n", (unsigned long)addr); */
+
+    /* Reset and Write auto select command: read Manufacturer ID */
+    addr[0x0000] = 0xf0f0f0f0;
+    addr[0x0555] = 0xAAAAAAAA;
+    addr[0x02AA] = 0x55555555;
+    addr[0x0555] = 0x90909090;
+    udelay (1000);
+
+    vendor = addr[0];
+    /*printf("vendor = %08lx\n", vendor); */
+    if (vendor != 0x01010101) {
+	info->size = 0;
+	goto out;
+    }
+
+    devid = addr[1];
+    /*printf("devid  = %08lx\n", devid); */
+
+    if ((devid & 0xff) == AMD_ID_F080B) {
+	info->flash_id	   = (vendor & 0xff) << 16 | AMD_ID_F080B;
+	/* we have 16 sectors with 64KB each x 4 */
+	info->sector_count = 16;
+	info->size	   = 4 * info->sector_count * 64*1024;
+    } else if ((devid & 0xff) == AMD_ID_F016D){
+	info->flash_id	   = (vendor & 0xff) << 16 | AMD_ID_F016D;
+	/* we have 32 sectors with 64KB each x 4 */
+	info->sector_count = 32;
+	info->size	   = 4 * info->sector_count * 64*1024;
+    } else {
+	info->size = 0;
+	goto out;
+    }
+    /*printf("sector count = %08x\n", info->sector_count); */
+    /* check for protected sectors */
+    for (i = 0; i < info->sector_count; i++) {
+	/* sector base address */
+	info->start[i] = base + i * (info->size / info->sector_count);
+	/* read sector protection at sector address, (A7 .. A0) = 0x02 */
+	/* D0 = 1 if protected */
+	addr = (volatile unsigned long *)(info->start[i]);
+	info->protect[i] = addr[2] & 1;
+    }
+
+    /* reset command */
+    addr = (vu_long *)info->start[0];
+
+  out:
+    addr[0] = 0xf0f0f0f0;
+
+    /*printf("size = %08x\n", info->size); */
+    return info->size;
+}
+
+/*********************************************************************/
+/* NAME: flash_erase() - erases flash by sector			     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   This function erases flash sectors starting for s_first to	     */
+/*   s_last.							     */
+/*								     */
+/* INPUTS:							     */
+/*   flash_info_t *info - flash information structure		     */
+/*   int s_first - first sector to erase			     */
+/*   int s_last	 - last sector to erase				     */
+/*								     */
+/* OUTPUTS:							     */
+/*   None							     */
+/*								     */
+/* RETURNS:							     */
+/*   Returns 0 for success, 1 for failure.			     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*********************************************************************/
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+    vu_long *addr = (vu_long*)(info->start[0]);
+    int flag, prot, sect, l_sect;
+    ulong start, now, last;
+
+    if ((s_first < 0) || (s_first > s_last)) {
+	if (info->flash_id == FLASH_UNKNOWN) {
+	    printf ("- missing\n");
+	} else {
+	    printf ("- no sectors to erase\n");
+	}
+	return 1;
+    }
+
+    prot = 0;
+    for (sect = s_first; sect <= s_last; sect++) {
+	if (info->protect[sect]) {
+	    prot++;
+	}
+    }
+
+    if (prot) {
+	printf ("- Warning: %d protected sectors will not be erased!\n",
+		prot);
+    } else {
+	printf ("\n");
+    }
+
+    l_sect = -1;
+
+    /* Disable interrupts which might cause a timeout here */
+    flag = disable_interrupts();
+
+    addr[0x0555] = 0xAAAAAAAA;
+    addr[0x02AA] = 0x55555555;
+    addr[0x0555] = 0x80808080;
+    addr[0x0555] = 0xAAAAAAAA;
+    addr[0x02AA] = 0x55555555;
+    udelay (100);
+
+    /* Start erase on unprotected sectors */
+    for (sect = s_first; sect <= s_last; sect++) {
+	if (info->protect[sect] == 0) { /* not protected */
+	    addr = (vu_long*)(info->start[sect]);
+	    addr[0] = 0x30303030;
+	    l_sect = sect;
+	}
+    }
+
+    /* re-enable interrupts if necessary */
+    if (flag)
+	enable_interrupts();
+
+    /* wait at least 80us - let's wait 1 ms */
+    udelay (1000);
+
+    /*
+     * We wait for the last triggered sector
+     */
+    if (l_sect < 0)
+	goto DONE;
+
+    start = get_timer (0);
+    last  = start;
+    addr = (vu_long*)(info->start[l_sect]);
+    while ((addr[0] & 0x80808080) != 0x80808080) {
+	if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+	    printf ("Timeout\n");
+	    return 1;
+	}
+	/* show that we're waiting */
+	if ((now - last) > 1000) {  /* every second */
+	    serial_putc ('.');
+	    last = now;
+	}
+    }
+
+  DONE:
+    /* reset to read mode */
+    addr = (volatile unsigned long *)info->start[0];
+    addr[0] = 0xF0F0F0F0;   /* reset bank */
+
+    printf (" done\n");
+    return 0;
+}
+
+/*********************************************************************/
+/* NAME: write_buff() - writes a buffer to flash		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   This function copies a buffer, *src, to flash.		     */
+/*								     */
+/* INPUTS:							     */
+/*  flash_info_t *info - flash information structure		     */
+/*  uchar *src - pointer to buffer to write to flash		     */
+/*  ulong addr - address to start write at			     */
+/*  ulong cnt - number of bytes to write to flash		     */
+/*								     */
+/* OUTPUTS:							     */
+/*   None							     */
+/*								     */
+/* RETURNS:							     */
+/*   0 - OK							     */
+/*   1 - write timeout						     */
+/*   2 - Flash not erased					     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*********************************************************************/
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+    ulong cp, wp, data;
+    int i, l, rc;
+
+    wp = (addr & ~3);	/* get lower word aligned address */
+
+    /*
+     * handle unaligned start bytes
+     */
+    if ((l = addr - wp) != 0) {
+	data = 0;
+	for (i = 0, cp = wp; i < l; ++i, ++cp) {
+	    data = (data << 8) | (*(uchar *)cp);
+	}
+	for (; (i < 4) && (cnt > 0); ++i) {
+	    data = (data << 8) | *src++;
+	    --cnt;
+	    ++cp;
+	}
+	for (; (cnt == 0) && (i < 4); ++i, ++cp) {
+	    data = (data << 8) | (*(uchar *)cp);
+	}
+
+	if ((rc = write_word(info, wp, data)) != 0) {
+	    return (rc);
+	}
+	wp += 4;
+    }
+
+    /*
+     * handle word aligned part
+     */
+    while (cnt >= 4) {
+	data = 0;
+	for (i = 0; i < 4; ++i) {
+	    data = (data << 8) | *src++;
+	}
+	if ((rc = write_word(info, wp, data)) != 0) {
+	    return (rc);
+	}
+	wp  += 4;
+	cnt -= 4;
+    }
+
+    if (cnt == 0) {
+	return (0);
+    }
+
+    /*
+     * handle unaligned tail bytes
+     */
+    data = 0;
+    for (i = 0, cp = wp; (i < 4) && (cnt > 0); ++i, ++cp) {
+	data = (data << 8) | *src++;
+	--cnt;
+    }
+    for (; (i < 4); ++i, ++cp) {
+	data = (data << 8) | (*(uchar *)cp);
+    }
+
+    return (write_word(info, wp, data));
+}
+
+/*********************************************************************/
+/* NAME: write_word() - writes a word to flash			     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   This writes a single word to flash.			     */
+/*								     */
+/* INPUTS:							     */
+/*  flash_info_t *info - flash information structure		     */
+/*  ulong dest - address to write				     */
+/*  ulong data - data to write					     */
+/*								     */
+/* OUTPUTS:							     */
+/*   None							     */
+/*								     */
+/* RETURNS:							     */
+/*   0 - OK							     */
+/*   1 - write timeout						     */
+/*   2 - Flash not erased					     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*********************************************************************/
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+    vu_long *addr = (vu_long*)(info->start[0]);
+    ulong start;
+    int flag;
+
+    /* Check if Flash is (sufficiently) erased */
+    if ((*((vu_long *)dest) & data) != data) {
+	return (2);
+    }
+    /* Disable interrupts which might cause a timeout here */
+    flag = disable_interrupts();
+
+    addr[0x0555] = 0xAAAAAAAA;
+    addr[0x02AA] = 0x55555555;
+    addr[0x0555] = 0xA0A0A0A0;
+
+    *((vu_long *)dest) = data;
+
+    /* re-enable interrupts if necessary */
+    if (flag)
+	enable_interrupts();
+
+    /* data polling for D7 */
+    start = get_timer (0);
+    while ((*((vu_long *)dest) & 0x80808080) != (data & 0x80808080)) {
+	if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+	    return (1);
+	}
+    }
+    return (0);
+}
+/*********************************************************************/
+/*			   End of flash.c			     */
+/*********************************************************************/
diff --git a/board/gw8260/gw8260.c b/board/gw8260/gw8260.c
new file mode 100644
index 0000000..7ca1989
--- /dev/null
+++ b/board/gw8260/gw8260.c
@@ -0,0 +1,659 @@
+/*
+ * (C) Copyright 2000
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2001
+ * Advent Networks, Inc. <http://www.adventnetworks.com>
+ * Jay Monkman <jtm@smoothsmoothie.com>
+ *
+ * (C) Copyright 2001
+ * Advent Networks, Inc. <http://www.adventnetworks.com>
+ * Oliver Brown <oliverb@alumni.utexas.net>
+ *
+ * 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
+ */
+
+/*********************************************************************/
+/* DESCRIPTION:
+ *   This file contains the board routines for the GW8260 board.
+ *
+ * MODULE DEPENDENCY:
+ *   None
+ *
+ * RESTRICTIONS/LIMITATIONS:
+ *   None
+ *
+ * Copyright (c) 2001, Advent Networks, Inc.
+ */
+/*********************************************************************/
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc8260.h>
+
+/*
+ * I/O Port configuration table
+ *
+ */
+const iop_conf_t iop_conf_tab[4][32] = {
+
+    /* Port A configuration */
+    {	/*	       conf ppar psor pdir podr pdat */
+	/* PA31 */ {   1,   0,	 0,   1,   0,	0   }, /* TP14		*/
+	/* PA30 */ {   1,   1,	 1,   1,   0,	0   }, /* US_RTS	*/
+	/* PA29 */ {   1,   0,	 0,   1,   0,	1   }, /* LSSI_DATA	*/
+	/* PA28 */ {   1,   0,	 0,   1,   0,	1   }, /* LSSI_CLK	*/
+	/* PA27 */ {   1,   0,	 0,   1,   0,	0   }, /* TP12		*/
+	/* PA26 */ {   1,   0,	 0,   0,   0,	0   }, /* IO_STATUS	*/
+	/* PA25 */ {   1,   0,	 0,   0,   0,	0   }, /* IO_CLOCK	*/
+	/* PA24 */ {   1,   0,	 0,   0,   0,	0   }, /* IO_CONFIG	*/
+	/* PA23 */ {   1,   0,	 0,   0,   0,	0   }, /* IO_DONE	*/
+	/* PA22 */ {   1,   0,	 0,   0,   0,	0   }, /* IO_DATA	*/
+	/* PA21 */ {   1,   1,	 0,   1,   0,	0   }, /* US_TXD3	*/
+	/* PA20 */ {   1,   1,	 0,   1,   0,	0   }, /* US_TXD2	*/
+	/* PA19 */ {   1,   1,	 0,   1,   0,	0   }, /* US_TXD1	*/
+	/* PA18 */ {   1,   1,	 0,   1,   0,	0   }, /* US_TXD0	*/
+	/* PA17 */ {   1,   1,	 0,   0,   0,	0   }, /* DS_RXD0	*/
+	/* PA16 */ {   1,   1,	 0,   0,   0,	0   }, /* DS_RXD1	*/
+	/* PA15 */ {   1,   1,	 0,   0,   0,	0   }, /* DS_RXD2	*/
+	/* PA14 */ {   1,   1,	 0,   0,   0,	0   }, /* DS_RXD3	*/
+	/* PA13 */ {   1,   0,	 0,   1,   0,	0   }, /* SPARE7	*/
+	/* PA12 */ {   1,   0,	 0,   1,   0,	0   }, /* SPARE6	*/
+	/* PA11 */ {   1,   0,	 0,   1,   0,	0   }, /* SPARE5	*/
+	/* PA10 */ {   1,   0,	 0,   1,   0,	0   }, /* SPARE4	*/
+	/* PA9	*/ {   1,   0,	 0,   1,   0,	0   }, /* SPARE3	*/
+	/* PA8	*/ {   1,   0,	 0,   1,   0,	0   }, /* SPARE2	*/
+	/* PA7	*/ {   1,   0,	 0,   0,   0,	0   }, /* LSSI_IN	*/
+	/* PA6	*/ {   1,   0,	 0,   1,   0,	0   }, /* SPARE0	*/
+	/* PA5	*/ {   1,   0,	 0,   1,   0,	0   }, /* DEMOD_RESET_	*/
+	/* PA4	*/ {   1,   0,	 0,   1,   0,	0   }, /* MOD_RESET_	*/
+	/* PA3	*/ {   1,   0,	 0,   1,   0,	0   }, /* IO_RESET	*/
+	/* PA2	*/ {   1,   0,	 0,   1,   0,	0   }, /* TX_ENABLE	*/
+	/* PA1	*/ {   1,   0,	 0,   0,   0,	0   }, /* RX_LOCK	*/
+	/* PA0	*/ {   1,   0,	 0,   1,   0,	1   }  /* MPC_RESET_	*/
+    },
+
+    /* Port B configuration */
+    {	/*	       conf ppar psor pdir podr pdat */
+	/* PB31 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH0_TX_ER */
+	/* PB30 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RX_DV */
+	/* PB29 */ {   1,   1,	 1,   1,   0,	0   }, /* FETH0_TX_EN */
+	/* PB28 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RX_ER */
+	/* PB27 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_COL   */
+	/* PB26 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_CRS   */
+	/* PB25 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH0_TXD3  */
+	/* PB24 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH0_TXD2  */
+	/* PB23 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH0_TXD1  */
+	/* PB22 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH0_TXD0  */
+	/* PB21 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RXD0  */
+	/* PB20 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RXD1  */
+	/* PB19 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RXD2  */
+	/* PB18 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RXD3  */
+	/* PB17 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RX_DV */
+	/* PB16 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RX_ER */
+	/* PB15 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH1_TX_ER */
+	/* PB14 */ {   1,   1,	 0,   1,   0,	0   }, /* FETH1_TX_EN */
+	/* PB13 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_COL   */
+	/* PB12 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_CRS   */
+	/* PB11 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RXD3  */
+	/* PB10 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RXD2  */
+	/* PB9	*/ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RXD1  */
+	/* PB8	*/ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RXD0  */
+	/* PB7	*/ {   1,   1,	 0,   1,   0,	0   }, /* FETH1_TXD0  */
+	/* PB6	*/ {   1,   1,	 0,   1,   0,	0   }, /* FETH1_TXD1  */
+	/* PB5	*/ {   1,   1,	 0,   1,   0,	0   }, /* FETH1_TXD2  */
+	/* PB4	*/ {   1,   1,	 0,   1,   0,	0   }, /* FETH1_TXD3  */
+	/* 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 */
+    },
+
+    /* Port C */
+    {	/*	       conf ppar psor pdir podr pdat */
+	/* PC31 */ {   1,   0,	 0,   1,   0,	1   }, /* FAST_RESET_	*/
+	/* PC30 */ {   1,   0,	 0,   1,   0,	1   }, /* FAST_PAUSE_	*/
+	/* PC29 */ {   1,   0,	 0,   1,   0,	0   }, /* FAST_SLEW1	*/
+	/* PC28 */ {   1,   0,	 0,   1,   0,	0   }, /* FAST_SLEW0	*/
+	/* PC27 */ {   1,   0,	 0,   1,   0,	0   }, /* TP13		*/
+	/* PC26 */ {   1,   0,	 0,   0,   0,	0   }, /* RXDECDFLG	*/
+	/* PC25 */ {   1,   0,	 0,   0,   0,	0   }, /* RXACQFAIL	*/
+	/* PC24 */ {   1,   0,	 0,   0,   0,	0   }, /* RXACQFLG	*/
+	/* PC23 */ {   1,   0,	 0,   1,   0,	0   }, /* WD_TCL	*/
+	/* PC22 */ {   1,   0,	 0,   1,   0,	0   }, /* WD_EN		*/
+	/* PC21 */ {   1,   0,	 0,   1,   0,	0   }, /* US_TXCLK	*/
+	/* PC20 */ {   1,   0,	 0,   0,   0,	0   }, /* DS_RXCLK	*/
+	/* PC19 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_RX_CLK	*/
+	/* PC18 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH0_TX_CLK	*/
+	/* PC17 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_RX_CLK	*/
+	/* PC16 */ {   1,   1,	 0,   0,   0,	0   }, /* FETH1_TX_CLK	*/
+	/* PC15 */ {   1,   0,	 0,   1,   0,	0   }, /* TX_SHUTDOWN_	*/
+	/* PC14 */ {   1,   0,	 0,   0,   0,	0   }, /* RS_232_DTR_	*/
+	/* PC13 */ {   1,   0,	 0,   0,   0,	0   }, /* TXERR		*/
+	/* PC12 */ {   1,   0,	 0,   1,   0,	1   }, /* FETH1_MDDIS	*/
+	/* PC11 */ {   1,   0,	 0,   1,   0,	1   }, /* FETH0_MDDIS	*/
+	/* PC10 */ {   1,   0,	 0,   1,   0,	0   }, /* MDC		*/
+	/* PC9	*/ {   1,   0,	 0,   1,   1,	1   }, /* MDIO		*/
+	/* PC8	*/ {   1,   0,	 0,   1,   1,	1   }, /* SER_NUM	*/
+	/* PC7	*/ {   1,   1,	 0,   0,   0,	0   }, /* US_CTS	*/
+	/* PC6	*/ {   1,   1,	 0,   0,   0,	0   }, /* DS_CD_	*/
+	/* PC5	*/ {   1,   0,	 0,   1,   0,	0   }, /* FETH1_PWRDWN	*/
+	/* PC4	*/ {   1,   0,	 0,   1,   0,	0   }, /* FETH0_PWRDWN	*/
+	/* PC3	*/ {   1,   0,	 0,   1,   0,	0   }, /* MPULED3	*/
+	/* PC2	*/ {   1,   0,	 0,   1,   0,	0   }, /* MPULED2	*/
+	/* PC1	*/ {   1,   0,	 0,   1,   0,	0   }, /* MPULED1	*/
+	/* PC0	*/ {   1,   0,	 0,   1,   0,	1   }, /* MPULED0	*/
+    },
+
+    /* Port D */
+    {	/*	       conf ppar psor pdir podr pdat */
+	/* PD31 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD30 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD29 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD28 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD27 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD26 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD25 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD24 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD23 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD22 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD21 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD20 */ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD19 */ {   1,   1,	 1,   0,   0,	0   }, /*  not used	*/
+	/* PD18 */ {   1,   1,	 1,   0,   0,	0   }, /*  not used	*/
+	/* PD17 */ {   1,   1,	 1,   0,   0,	0   }, /*  not used	*/
+	/* PD16 */ {   1,   1,	 1,   0,   0,	0   }, /*  not used	*/
+	/* PD15 */ {   1,   1,	 1,   0,   1,	1   }, /*  SDRAM_SDA	*/
+	/* PD14 */ {   1,   1,	 1,   0,   1,	1   }, /*  SDRAM_SCL	*/
+	/* PD13 */ {   1,   0,	 0,   1,   0,	0   }, /*  MPULED7	*/
+	/* PD12 */ {   1,   0,	 0,   1,   0,	0   }, /*  MPULED6	*/
+	/* PD11 */ {   1,   0,	 0,   1,   0,	0   }, /*  MPULED5	*/
+	/* PD10 */ {   1,   0,	 0,   1,   0,	0   }, /*  MPULED4	*/
+	/* PD9	*/ {   1,   1,	 0,   1,   0,	0   }, /*  RS232_TXD	*/
+	/* PD8	*/ {   1,   1,	 0,   0,   0,	0   }, /*  RD232_RXD	*/
+	/* PD7	*/ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD6	*/ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD5	*/ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* PD4	*/ {   1,   0,	 0,   0,   0,	0   }, /*  not used	*/
+	/* 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 */
+    }
+};
+
+/*********************************************************************/
+/* NAME: checkboard() -	 Displays the board type and serial number   */
+/*								     */
+/* OUTPUTS:							     */
+/*   Displays the board type and serial number			     */
+/*								     */
+/* RETURNS:							     */
+/*   Always returns 1						     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+int checkboard(void)
+{
+    char *str;
+    puts ("Board: Advent Networks gw8260\n");
+
+    str = getenv("serial#");
+    if (str != NULL) {
+	printf("SN:    %s\n", str);
+    }
+    return 0;
+}
+
+
+#if defined (CFG_DRAM_TEST)
+/*********************************************************************/
+/* NAME:  move64() -  moves a double word (64-bit)		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   this function performs a double word move from the data at	     */
+/*   the source pointer to the location at the destination pointer.  */
+/*								     */
+/* INPUTS:							     */
+/*   unsigned long long *src  - pointer to data to move		     */
+/*								     */
+/* OUTPUTS:							     */
+/*   unsigned long long *dest - pointer to locate to move data	     */
+/*								     */
+/* RETURNS:							     */
+/*   None							     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*   May cloober fr0.						     */
+/*								     */
+/*********************************************************************/
+static void move64(unsigned long long *src, unsigned long long *dest)
+{
+	asm ("lfd  0, 0(3)\n\t" /* fpr0	  =  *scr	*/
+	 "stfd 0, 0(4)"		/* *dest  =  fpr0	*/
+	 : : : "fr0" );		/* Clobbers fr0		*/
+    return;
+}
+
+
+#if defined (CFG_DRAM_TEST_DATA)
+
+unsigned long long pattern[]= {
+    0xaaaaaaaaaaaaaaaa,
+    0xcccccccccccccccc,
+    0xf0f0f0f0f0f0f0f0,
+    0xff00ff00ff00ff00,
+    0xffff0000ffff0000,
+    0xffffffff00000000,
+    0x00000000ffffffff,
+    0x0000ffff0000ffff,
+    0x00ff00ff00ff00ff,
+    0x0f0f0f0f0f0f0f0f,
+    0x3333333333333333,
+    0x5555555555555555};
+
+/*********************************************************************/
+/* NAME:  mem_test_data() -  test data lines for shorts and opens    */
+/*								     */
+/* DESCRIPTION:							     */
+/*   Tests data lines for shorts and opens by forcing adjacent data  */
+/*   to opposite states. Because the data lines could be routed in   */
+/*   an arbitrary manner the must ensure test patterns ensure that   */
+/*   every case is tested. By using the following series of binary   */
+/*   patterns every combination of adjacent bits is test regardless  */
+/*   of routing.						     */
+/*								     */
+/*     ...101010101010101010101010				     */
+/*     ...110011001100110011001100				     */
+/*     ...111100001111000011110000				     */
+/*     ...111111110000000011111111				     */
+/*								     */
+/*   Carrying this out, gives us six hex patterns as follows:	     */
+/*								     */
+/*     0xaaaaaaaaaaaaaaaa					     */
+/*     0xcccccccccccccccc					     */
+/*     0xf0f0f0f0f0f0f0f0					     */
+/*     0xff00ff00ff00ff00					     */
+/*     0xffff0000ffff0000					     */
+/*     0xffffffff00000000					     */
+/*								     */
+/*   The number test patterns will always be given by:		     */
+/*								     */
+/*   log(base 2)(number data bits) = log2 (64) = 6		     */
+/*								     */
+/*   To test for short and opens to other signals on our boards. we  */
+/*   simply							     */
+/*   test with the 1's complemnt of the paterns as well.	     */
+/*								     */
+/* OUTPUTS:							     */
+/*   Displays failing test pattern				     */
+/*								     */
+/* RETURNS:							     */
+/*   0 -  Passed test						     */
+/*   1 -  Failed test						     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*  Assumes only one one SDRAM bank				     */
+/*								     */
+/*********************************************************************/
+int mem_test_data(void)
+{
+    unsigned long long * pmem =
+	(unsigned long long *)CFG_SDRAM_BASE ;
+    unsigned long long temp64;
+    int num_patterns = sizeof(pattern)/ sizeof(pattern[0]);
+    int i;
+    unsigned int hi, lo;
+
+    for ( i = 0; i < num_patterns; i++) {
+	move64(&(pattern[i]), pmem);
+	move64(pmem, &temp64);
+
+	/* hi = (temp64>>32) & 0xffffffff;	    */
+	/* lo = temp64 & 0xffffffff;		    */
+	/* printf("\ntemp64 = 0x%08x%08x", hi, lo); */
+
+	hi = (pattern[i]>>32) & 0xffffffff;
+	lo = pattern[i] & 0xffffffff;
+	/* printf("\npattern[%d] = 0x%08x%08x", i, hi, lo);  */
+
+	if (temp64 != pattern[i]){
+	    printf ("\n   Data Test Failed, pattern 0x%08x%08x", hi, lo);
+	    return 1;
+	}
+    }
+
+    return 0;
+}
+#endif /* CFG_DRAM_TEST_DATA */
+
+#if defined (CFG_DRAM_TEST_ADDRESS)
+/*********************************************************************/
+/* NAME:  mem_test_address() -	test address lines		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   This function performs a test to verify that each word im	     */
+/*   memory is uniquly addressable. The test sequence is as follows: */
+/*								     */
+/*   1) write the address of each word to each word.		     */
+/*   2) verify that each location equals its address		     */
+/*								     */
+/* OUTPUTS:							     */
+/*   Displays failing test pattern and address			     */
+/*								     */
+/* RETURNS:							     */
+/*   0 -  Passed test						     */
+/*   1 -  Failed test						     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+int mem_test_address(void)
+{
+    volatile unsigned int * pmem = (volatile unsigned int *)CFG_SDRAM_BASE ;
+    const unsigned int size = (CFG_SDRAM_SIZE * 1024 * 1024)/4;
+    unsigned int i;
+
+    /* write address to each location */
+    for ( i = 0; i < size; i++) {
+	pmem[i] = i;
+    }
+
+    /* verify each loaction */
+    for ( i = 0; i < size; i++) {
+	if (pmem[i] != i) {
+	    printf("\n   Address Test Failed at 0x%x", i);
+	    return 1;
+	}
+    }
+    return 0;
+}
+#endif /* CFG_DRAM_TEST_ADDRESS */
+
+#if defined (CFG_DRAM_TEST_WALK)
+/*********************************************************************/
+/* NAME:   mem_march() -  memory march				     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   Marches up through memory. At each location verifies rmask if   */
+/*   read = 1. At each location write wmask if	write = 1. Displays  */
+/*   failing address and pattern.				     */
+/*								     */
+/* INPUTS:							     */
+/*   volatile unsigned long long * base - start address of test	     */
+/*   unsigned int size - number of dwords(64-bit) to test	     */
+/*   unsigned long long rmask - read verify mask		     */
+/*   unsigned long long wmask - wrtie verify mask		     */
+/*   short read - verifies rmask if read = 1			     */
+/*   short write  - writes wmask if write = 1			     */
+/*								     */
+/* OUTPUTS:							     */
+/*   Displays failing test pattern and address			     */
+/*								     */
+/* RETURNS:							     */
+/*   0 -  Passed test						     */
+/*   1 -  Failed test						     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+int mem_march(volatile unsigned long long * base,
+	      unsigned int size,
+	      unsigned long long rmask,
+	      unsigned long long wmask,
+	      short read,
+	      short write)
+{
+    unsigned int i;
+    unsigned long long temp;
+    unsigned int hitemp, lotemp, himask, lomask;
+
+    for (i = 0 ; i < size ; i++) {
+	if (read != 0) {
+	    /* temp = base[i]; */
+	    move64 ((unsigned long long *)&(base[i]), &temp);
+	    if (rmask != temp) {
+		hitemp = (temp>>32) & 0xffffffff;
+		lotemp = temp & 0xffffffff;
+		himask = (rmask>>32) & 0xffffffff;
+		lomask = rmask & 0xffffffff;
+
+		printf("\n Walking one's test failed: address = 0x%08x,"
+		       "\n\texpected 0x%08x%08x, found 0x%08x%08x",
+		       i<<3, himask, lomask, hitemp, lotemp);
+		return 1;
+	    }
+	}
+	if ( write != 0 ) {
+	   /*  base[i] = wmask; */
+	    move64 (&wmask, (unsigned long long *)&(base[i]));
+	}
+    }
+    return 0;
+}
+#endif /* CFG_DRAM_TEST_WALK */
+
+/*********************************************************************/
+/* NAME:   mem_test_walk() -  a simple walking ones test	     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   Performs a walking ones through entire physical memory. The     */
+/*   test uses as series of memory marches, mem_march(), to verify   */
+/*   and write the test patterns to memory. The test sequence is as  */
+/*   follows:							     */
+/*     1) march writing 0000...0001				     */
+/*     2) march verifying 0000...0001  , writing  0000...0010	     */
+/*     3) repeat step 2 shifting masks left 1 bit each time unitl    */
+/*	   the write mask equals 1000...0000			     */
+/*     4) march verifying 1000...0000				     */
+/*   The test fails if any of the memory marches return a failure.   */
+/*								     */
+/* OUTPUTS:							     */
+/*   Displays which pass on the memory test is executing	     */
+/*								     */
+/* RETURNS:							     */
+/*   0 -  Passed test						     */
+/*   1 -  Failed test						     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+int mem_test_walk(void)
+{
+    unsigned long long mask;
+    volatile unsigned long long * pmem =
+	(volatile unsigned long long *)CFG_SDRAM_BASE ;
+    const unsigned long size = (CFG_SDRAM_SIZE * 1024 * 1024)/8;
+
+    unsigned int i;
+    mask = 0x01;
+
+    printf("Initial Pass");
+    mem_march(pmem,size,0x0,0x1,0,1);
+
+    printf("\b\b\b\b\b\b\b\b\b\b\b\b");
+    printf("		");
+    printf("\b\b\b\b\b\b\b\b\b\b\b\b");
+
+    for (i = 0 ; i < 63 ; i++) {
+	printf("Pass %2d", i+2);
+	if ( mem_march(pmem,size, mask,mask << 1, 1, 1) != 0 ){
+	    /*printf("mask: 0x%x, pass: %d, ", mask, i);*/
+	    return 1;
+	}
+	mask = mask<<1;
+	printf("\b\b\b\b\b\b\b");
+    }
+
+    printf("Last Pass");
+    if (mem_march(pmem, size, 0, mask, 0, 1) != 0) {
+	/* printf("mask: 0x%x", mask); */
+	return 1;
+    }
+    printf("\b\b\b\b\b\b\b\b\b");
+    printf("	     ");
+    printf("\b\b\b\b\b\b\b\b\b");
+
+    return 0;
+}
+
+/*********************************************************************/
+/* NAME:    testdram() -  calls any enabled memory tests	     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   Runs memory tests if the environment test variables are set to  */
+/*   'y'.							     */
+/*								     */
+/* INPUTS:							     */
+/*   testdramdata    - If set to 'y', data test is run.		     */
+/*   testdramaddress - If set to 'y', address test is run.	     */
+/*   testdramwalk    - If set to 'y', walking ones test is run	     */
+/*								     */
+/* OUTPUTS:							     */
+/*   None							     */
+/*								     */
+/* RETURNS:							     */
+/*   0 -  Passed test						     */
+/*   1 -  Failed test						     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+int testdram(void)
+{
+    char *s;
+    int rundata, runaddress, runwalk;
+
+    s = getenv ("testdramdata");
+    rundata = (s && (*s == 'y')) ? 1 : 0;
+    s = getenv ("testdramaddress");
+    runaddress = (s && (*s == 'y')) ? 1 : 0;
+    s = getenv ("testdramwalk");
+    runwalk = (s && (*s == 'y')) ? 1 : 0;
+
+    if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) {
+	printf("Testing RAM ... ");
+    }
+#ifdef CFG_DRAM_TEST_DATA
+    if (rundata == 1) {
+	if (mem_test_data() == 1){
+	    return 1;
+	}
+    }
+#endif
+#ifdef CFG_DRAM_TEST_ADDRESS
+    if (runaddress == 1) {
+	if (mem_test_address() == 1){
+	    return 1;
+	}
+    }
+#endif
+#ifdef CFG_DRAM_TEST_WALK
+    if (runwalk == 1) {
+	if (mem_test_walk() == 1){
+	    return 1;
+	}
+    }
+#endif
+    if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) {
+	printf("passed");
+    }
+    return 0;
+
+}
+#endif /* CFG_DRAM_TEST */
+
+/*********************************************************************/
+/* NAME: initdram() -  initializes SDRAM controller		     */
+/*								     */
+/* DESCRIPTION:							     */
+/*   Initializes the MPC8260's SDRAM controller.		     */
+/*								     */
+/* INPUTS:							     */
+/*   CFG_IMMR	    -  MPC8260 Internal memory map		     */
+/*   CFG_SDRAM_BASE -  Physical start address of SDRAM		     */
+/*   CFG_PSDMR -       SDRAM mode register			     */
+/*   CFG_MPTPR -       Memory refresh timer prescaler register	     */
+/*   CFG_SDRAM0_SIZE - SDRAM size				     */
+/*								     */
+/* RETURNS:							     */
+/*   SDRAM size in bytes					     */
+/*								     */
+/* RESTRICTIONS/LIMITATIONS:					     */
+/*								     */
+/*								     */
+/*********************************************************************/
+long int initdram(int board_type)
+{
+    volatile immap_t *immap  = (immap_t *)CFG_IMMR;
+    volatile memctl8260_t *memctl = &immap->im_memctl;
+    volatile uchar c = 0, *ramaddr = (uchar *)(CFG_SDRAM_BASE + 0x8);
+    ulong psdmr = CFG_PSDMR;
+    int i;
+
+    /*
+     * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
+     *
+     * "At system reset, initialization software must set up the
+     *	programmable parameters in the memory controller banks registers
+     *	(ORx, BRx, P/LSDMR). After all memory parameters are configured,
+     *	system software should execute the following initialization sequence
+     *	for each SDRAM device.
+     *
+     *	1. Issue a PRECHARGE-ALL-BANKS command
+     *	2. Issue eight CBR REFRESH commands
+     *	3. Issue a MODE-SET command to initialize the mode register
+     *
+     *	The initial commands are executed by setting P/LSDMR[OP] and
+     *	accessing the SDRAM with a single-byte transaction."
+     *
+     * The appropriate BRx/ORx registers have already been set when we
+     * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
+     */
+
+    memctl->memc_psrt = CFG_PSRT;
+    memctl->memc_mptpr = CFG_MPTPR;
+
+    memctl->memc_psdmr = psdmr | PSDMR_OP_PREA;
+    *ramaddr = c;
+
+    memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR;
+    for (i = 0; i < 8; i++){
+	*ramaddr = c;
+    }
+    memctl->memc_psdmr = psdmr | PSDMR_OP_MRW;
+    *ramaddr = c;
+
+    memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+    *ramaddr = c;
+
+    /* return total ram size */
+    return (CFG_SDRAM0_SIZE * 1024 * 1024);
+}
+
+/*********************************************************************/
+/*			   End of gw8260.c			     */
+/*********************************************************************/