Initial revision

7 files changed, 1373 insertions, 0 deletions

diff --git a/board/eltec/elppc/Makefile b/board/eltec/elppc/Makefile
new file mode 100644
index 0000000..1ed1a24
--- /dev/null
+++ b/board/eltec/elppc/Makefile
@@ -0,0 +1,57 @@
+#
+# (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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	= $(BOARD).o flash.o pci.o misc.o mpc107_i2c.o eepro100_srom.o
+
+SOBJS	= asm_init.o
+
+$(LIB):	.depend $(OBJS) $(SOBJS)
+	$(AR) crv $@ $^
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
+
+
+
+
+
+
+
+
+
diff --git a/board/eltec/elppc/config.mk b/board/eltec/elppc/config.mk
new file mode 100644
index 0000000..aa463c5
--- /dev/null
+++ b/board/eltec/elppc/config.mk
@@ -0,0 +1,26 @@
+#
+# (C) Copyright 2000
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+TEXT_BASE = 0xFFF00000
+
+PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
diff --git a/board/eltec/elppc/flash.c b/board/eltec/elppc/flash.c
new file mode 100644
index 0000000..5834c99
--- /dev/null
+++ b/board/eltec/elppc/flash.c
@@ -0,0 +1,513 @@
+/*
+ * (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
+ */
+
+/*
+ * 07-10-2002 Frank Gottschling: added 29F032 flash (ELPPC).
+ *        fixed monitor protection part
+ *
+ * 09-18-2001 Andreas Heppel: Reduced the code in here to the usage
+ *        of AMD's 29F040 and 29F016 flashes, since the BAB7xx does use
+ *        any other.
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/pci_io.h>
+
+flash_info_t    flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+
+/*flash command address offsets*/
+
+#define ADDR0           (0x555)
+#define ADDR1           (0x2AA)
+#define ADDR3           (0x001)
+
+#define FLASH_WORD_SIZE unsigned char
+
+/*----------------------------------------------------------------------------*/
+
+unsigned long flash_init (void)
+{
+    unsigned long size1, size2;
+    int i;
+
+    /* Init: no FLASHes known */
+    for (i=0; i<CFG_MAX_FLASH_BANKS; ++i)
+    {
+        flash_info[i].flash_id = FLASH_UNKNOWN;
+    }
+
+    /* initialise 1st flash */
+    size1 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
+
+    if (flash_info[0].flash_id == FLASH_UNKNOWN)
+    {
+        printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+            size1, size1<<20);
+    }
+
+    /* initialise 2nd flash */
+    size2 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
+
+    if (flash_info[1].flash_id == FLASH_UNKNOWN)
+    {
+        printf ("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
+            size2, size2<<20);
+    }
+
+    /* monitor protection ON by default */
+    if (size1 == 512*1024)
+    {
+        (void)flash_protect(FLAG_PROTECT_SET,
+                FLASH_BASE0_PRELIM,
+                FLASH_BASE0_PRELIM+CFG_MONITOR_LEN-1,
+                &flash_info[0]);
+    }
+    if (size2 == 512*1024)
+    {
+        (void)flash_protect(FLAG_PROTECT_SET,
+                FLASH_BASE1_PRELIM,
+                FLASH_BASE1_PRELIM+CFG_MONITOR_LEN-1,
+                &flash_info[1]);
+    }
+    if (size2 == 4*1024*1024)
+    {
+        (void)flash_protect(FLAG_PROTECT_SET,
+                CFG_FLASH_BASE,
+                CFG_FLASH_BASE+CFG_MONITOR_LEN-1,
+                &flash_info[1]);
+    }
+
+    return (size1 + size2);
+}
+
+/*----------------------------------------------------------------------------*/
+
+void flash_print_info  (flash_info_t *info)
+{
+    int i;
+    int k;
+    int size;
+    int erased;
+    volatile unsigned long *flash;
+
+    if (info->flash_id == FLASH_UNKNOWN) {
+        printf ("missing or unknown FLASH type\n");
+        flash_init();
+    }
+
+    if (info->flash_id == FLASH_UNKNOWN) {
+        printf ("missing or unknown FLASH type\n");
+        return;
+    }
+
+    switch (info->flash_id & FLASH_VENDMASK) {
+    case FLASH_MAN_AMD:
+        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_F016D:
+        printf ("AM29F016D (16 Mbit)\n");
+        break;
+    case AMD_ID_F032B:
+        printf ("AM29F032B (32 Mbit)\n");
+        break;
+   default:
+        printf ("Unknown Chip Type\n");
+        break;
+    }
+
+    if (info->size >= (1 << 20)) {
+        printf ("  Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count);
+    } else {
+        printf ("  Size: %ld kB in %d Sectors\n", info->size >> 10, info->sector_count);
+    }
+
+    printf ("  Sector Start Addresses:");
+    for (i=0; i<info->sector_count; ++i) {
+        /*
+        * Check if whole sector is erased
+        */
+        if (i != (info->sector_count-1))
+            size = info->start[i+1] - info->start[i];
+        else
+            size = info->start[0] + info->size - info->start[i];
+
+        erased = 1;
+        flash = (volatile unsigned long *)info->start[i];
+        size = size >> 2;        /* divide by 4 for longword access */
+        for (k=0; k<size; k++) {
+            if (*flash++ != 0xffffffff) {
+                erased = 0;
+                break;
+            }
+        }
+
+        if ((i % 5) == 0)
+            printf ("\n   ");
+
+        printf (" %08lX%s%s",
+            info->start[i],
+            erased ? " E" : "  ",
+            info->protect[i] ? "RO " : "   ");
+    }
+    printf ("\n");
+}
+
+/*----------------------------------------------------------------------------*/
+/*
+ * The following code cannot be run from FLASH!
+ */
+ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+    short i;
+    ulong vendor, devid;
+    ulong base = (ulong)addr;
+    volatile unsigned char *caddr = (unsigned char *)addr;
+
+#ifdef DEBUG
+    printf("flash_get_size for address 0x%lx: \n", (unsigned long)caddr);
+#endif
+
+    /* Write auto select command: read Manufacturer ID */
+    caddr[0] = 0xF0;   /* reset bank */
+    udelay(10);
+
+    eieio();
+    caddr[0x555] = 0xAA;
+    udelay(10);
+    caddr[0x2AA] = 0x55;
+    udelay(10);
+    caddr[0x555] = 0x90;
+
+    udelay(10);
+
+    vendor = caddr[0];
+    devid = caddr[1];
+
+#ifdef DEBUG
+    printf("Manufacturer: 0x%lx\n", vendor);
+#endif
+
+    vendor &= 0xff;
+    devid &= 0xff;
+
+    /* We accept only two AMD types */
+    switch (vendor) {
+    case (FLASH_WORD_SIZE)AMD_MANUFACT:
+        info->flash_id = FLASH_MAN_AMD;
+        break;
+    default:
+        info->flash_id = FLASH_UNKNOWN;
+        info->sector_count = 0;
+        info->size = 0;
+        return (0);         /* no or unknown flash  */
+    }
+
+    switch (devid) {
+    case (FLASH_WORD_SIZE)AMD_ID_F040B:
+        info->flash_id |= AMD_ID_F040B;
+        info->sector_count = 8;
+        info->size = 0x00080000;
+        break;              /* => 0.5 MB      */
+
+    case (FLASH_WORD_SIZE)AMD_ID_F016D:
+        info->flash_id |= AMD_ID_F016D;
+        info->sector_count = 32;
+        info->size         = 0x00200000;
+        break;              /* => 2 MB      */
+
+    case (FLASH_WORD_SIZE)AMD_ID_F032B:
+        info->flash_id |= AMD_ID_F032B;
+        info->sector_count = 64;
+        info->size         = 0x00400000;
+        break;              /* => 4 MB      */
+
+    default:
+        info->flash_id = FLASH_UNKNOWN;
+        return (0);         /* => no or unknown flash */
+
+    }
+
+#ifdef DEBUG
+    printf("flash id 0x%lx; sector count 0x%x, size 0x%lx\n", info->flash_id, info->sector_count, info->size);
+#endif
+
+    /* 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 */
+        caddr = (volatile unsigned char *)(info->start[i]);
+        info->protect[i] = caddr[2] & 1;
+    }
+
+    /*
+     * Prevent writes to uninitialized FLASH.
+     */
+    if (info->flash_id != FLASH_UNKNOWN) {
+        caddr = (volatile unsigned char *)info->start[0];
+        caddr[0] = 0xF0;   /* reset bank */
+    }
+
+    return (info->size);
+}
+
+/*----------------------------------------------------------------------------*/
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+    volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
+    int flag, prot, sect, l_sect;
+    ulong start, now, last;
+    int rc = 0;
+
+    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;
+    }
+
+    if ((info->flash_id == FLASH_UNKNOWN) ||
+        (info->flash_id > FLASH_AMD_COMP)) {
+        printf ("Can't erase unknown flash type - aborted\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[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+    addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+    addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+    addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+    addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+
+    /* Start erase on unprotected sectors */
+    for (sect = s_first; sect<=s_last; sect++) {
+        if (info->protect[sect] == 0) { /* not protected */
+            addr = (FLASH_WORD_SIZE *)(info->start[sect]);
+            if (info->flash_id & FLASH_MAN_SST) {
+                addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+                addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+                addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+                addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+                addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+                addr[0] = (FLASH_WORD_SIZE)0x00500050;  /* block erase */
+                udelay(30000);  /* wait 30 ms */
+            }
+            else
+                addr[0] = (FLASH_WORD_SIZE)0x00300030;  /* sector erase */
+            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 = (FLASH_WORD_SIZE *)(info->start[l_sect]);
+    while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
+        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 = (FLASH_WORD_SIZE *)info->start[0];
+    addr[0] = (FLASH_WORD_SIZE)0x00F000F0;  /* reset bank */
+
+    printf (" done\n");
+    return rc;
+}
+
+/*----------------------------------------------------------------------------*/
+/*
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+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));
+}
+
+/*----------------------------------------------------------------------------*/
+/* Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+        volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)(info->start[0]);
+        volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *)dest;
+        volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data;
+    ulong start;
+    int flag;
+        int i;
+
+    /* Check if Flash is (sufficiently) erased */
+    if ((*((volatile FLASH_WORD_SIZE *)dest) &
+             (FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) {
+        return (2);
+    }
+    /* Disable interrupts which might cause a timeout here */
+    flag = disable_interrupts();
+
+        for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++)
+          {
+            addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+            addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+            addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0;
+
+            dest2[i] = data2[i];
+
+            /* re-enable interrupts if necessary */
+            if (flag)
+              enable_interrupts();
+
+            /* data polling for D7 */
+            start = get_timer (0);
+            while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) !=
+                   (data2[i] & (FLASH_WORD_SIZE)0x00800080)) {
+              if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+                return (1);
+              }
+            }
+          }
+
+    return (0);
+}
+
+/*----------------------------------------------------------------------------*/
+
diff --git a/board/eltec/elppc/misc.c b/board/eltec/elppc/misc.c
new file mode 100644
index 0000000..7bfb3a4
--- /dev/null
+++ b/board/eltec/elppc/misc.c
@@ -0,0 +1,258 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.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
+ */
+
+/* includes */
+#include <common.h>
+#include <linux/ctype.h>
+#include <pci.h>
+#include <net.h>
+#include "srom.h"
+
+/* imports  */
+extern char console_buffer[CFG_CBSIZE];
+extern int l2_cache_enable (int l2control);
+extern int eepro100_write_eeprom (struct eth_device* dev, int location,
+                 int addr_len, unsigned short data);
+extern int read_eeprom (struct eth_device* dev, int location, int addr_len);
+
+/*----------------------------------------------------------------------------*/
+/*
+ * read/write to nvram is only byte access
+ */
+void *nvram_read(void *dest, const long src, size_t count)
+{
+    uchar *d = (uchar *) dest;
+    uchar *s = (uchar *) (CFG_ENV_MAP_ADRS + src);
+
+    while (count--)
+        *d++ = *s++;
+
+    return dest;
+}
+
+void nvram_write(long dest, const void *src, size_t count)
+{
+    uchar *d = (uchar *) (CFG_ENV_MAP_ADRS + dest);
+    uchar *s = (uchar *) src;
+
+    while (count--)
+        *d++ = *s++;
+}
+
+/*----------------------------------------------------------------------------*/
+/*
+ * handle sroms on ELPPC
+ * fix ether address
+ * set serial console as default
+ */
+int misc_init_r (void)
+{
+    revinfo eerev;
+    u_char *ptr;
+    u_int  i, l, initSrom, copyNv;
+    char buf[256];
+    char hex[23] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0,
+                     0, 0, 0, 0, 10, 11, 12, 13, 14, 15 };
+
+    /* Clock setting for MPC107 i2c */
+    mpc107_i2c_init (MPC107_EUMB_ADDR, 0x2b);
+
+    /* Reset the EPIC */
+    out32r (MPC107_EUMB_GCR, 0xa0000000);
+    while (in32r (MPC107_EUMB_GCR) & 0x80000000);   /* Wait for reset to complete */
+    out32r (MPC107_EUMB_GCR, 0x20000000);           /* Put into into mixed mode */
+    while (in32r (MPC107_EUMB_IACKR) != 0xff);      /* Clear all pending interrupts */
+
+    /*
+     * Check/Remake revision info
+     */
+    initSrom = 0;
+    copyNv   = 0;
+
+    /* read out current revision srom contens */
+    mpc107_srom_load (0x0000, (u_char*)&eerev, sizeof(revinfo),
+                SECOND_DEVICE, FIRST_BLOCK);
+
+    /* read out current nvram shadow image */
+    nvram_read (buf, CFG_NV_SROM_COPY_ADDR, CFG_SROM_SIZE);
+
+    if (strcmp (eerev.magic, "ELTEC") != 0)
+    {
+        /* srom is not initialized -> create a default revision info */
+        for (i = 0, ptr = (u_char *)&eerev; i < sizeof(revinfo); i++)
+            *ptr++ = 0x00;
+        strcpy(eerev.magic, "ELTEC");
+        eerev.revrev[0] = 1;
+        eerev.revrev[1] = 0;
+        eerev.size = 0x00E0;
+        eerev.category[0] = 0x01;
+
+        /* node id from dead e128 as default */
+        eerev.etheraddr[0] = 0x00;
+        eerev.etheraddr[1] = 0x00;
+        eerev.etheraddr[2] = 0x5B;
+        eerev.etheraddr[3] = 0x00;
+        eerev.etheraddr[4] = 0x2E;
+        eerev.etheraddr[5] = 0x4D;
+
+        /* cache config word for ELPPC */
+        *(int*)&eerev.res[0] = 0;
+
+        initSrom = 1;  /* force dialog */
+        copyNv   = 1;  /* copy to nvram */
+    }
+
+    if ((copyNv == 0) &&   (el_srom_checksum((u_char*)&eerev, CFG_SROM_SIZE) !=
+                el_srom_checksum((u_char*)buf, CFG_SROM_SIZE)))
+    {
+        printf ("Invalid revision info copy in nvram !\n");
+        printf ("Press key:\n  <c> to copy current revision info to nvram.\n");
+        printf ("  <r> to reenter revision info.\n");
+        printf ("=> ");
+        if (0 != readline (NULL))
+        {
+            switch ((char)toupper(console_buffer[0]))
+            {
+            case 'C':
+                copyNv = 1;
+                break;
+            case 'R':
+                copyNv = 1;
+                initSrom = 1;
+                break;
+            }
+        }
+    }
+
+    if (initSrom)
+    {
+        memcpy (buf, &eerev.revision[0][0], 14);     /* save all revision info */
+        printf ("Enter revision number (0-9): %c  ", eerev.revision[0][0]);
+        if (0 != readline (NULL))
+        {
+            eerev.revision[0][0] = (char)toupper(console_buffer[0]);
+            memcpy (&eerev.revision[1][0], buf, 12); /* shift rest of rev info */
+        }
+
+        printf ("Enter revision character (A-Z): %c  ", eerev.revision[0][1]);
+        if (1 == readline (NULL))
+        {
+            eerev.revision[0][1] = (char)toupper(console_buffer[0]);
+        }
+
+        printf ("Enter board name (V-XXXX-XXXX): %s  ", (char *)&eerev.board);
+        if (11 == readline (NULL))
+        {
+            for (i=0; i<11; i++)
+                eerev.board[i] =  (char)toupper(console_buffer[i]);
+            eerev.board[11] = '\0';
+        }
+
+        printf ("Enter serial number: %s ", (char *)&eerev.serial );
+        if (6 == readline (NULL))
+        {
+            for (i=0; i<6; i++)
+                eerev.serial[i] = console_buffer[i];
+            eerev.serial[6] = '\0';
+        }
+
+        printf ("Enter ether node ID with leading zero (HEX): %02x%02x%02x%02x%02x%02x  ",
+            eerev.etheraddr[0], eerev.etheraddr[1],
+            eerev.etheraddr[2], eerev.etheraddr[3],
+            eerev.etheraddr[4], eerev.etheraddr[5]);
+        if (12 == readline (NULL))
+        {
+            for (i=0; i<12; i+=2)
+            eerev.etheraddr[i>>1] = (char)(16*hex[toupper(console_buffer[i])-'0'] +
+                               hex[toupper(console_buffer[i+1])-'0']);
+        }
+
+        l = strlen ((char *)&eerev.text);
+        printf("Add to text section (max 64 chr): %s ", (char *)&eerev.text );
+        if (0 != readline (NULL))
+        {
+            for (i = l; i<63; i++)
+                eerev.text[i] = console_buffer[i-l];
+            eerev.text[63] = '\0';
+        }
+
+        /* prepare network eeprom */
+        memset (buf, 0, 128);
+
+        buf[0] = eerev.etheraddr[1];
+        buf[1] = eerev.etheraddr[0];
+        buf[2] = eerev.etheraddr[3];
+        buf[3] = eerev.etheraddr[2];
+        buf[4] = eerev.etheraddr[5];
+        buf[5] = eerev.etheraddr[4];
+
+        *(unsigned short *)&buf[20] = 0x48B2;
+        *(unsigned short *)&buf[22] = 0x0004;
+        *(unsigned short *)&buf[24] = 0x1433;
+
+        printf("\nSRom:  Writing i82559 info ........ ");
+        if (eepro100_srom_store ((unsigned short *)buf) == -1)
+            printf("FAILED\n");
+        else
+            printf("OK\n");
+
+        /* update CRC */
+        eerev.crc = el_srom_checksum((u_char *)eerev.board, eerev.size);
+
+        /* write new values */
+        printf("\nSRom:  Writing revision info ...... ");
+        if (mpc107_srom_store((BLOCK_SIZE-sizeof(revinfo)), (u_char *)&eerev,
+                            sizeof(revinfo), SECOND_DEVICE, FIRST_BLOCK) == -1)
+            printf("FAILED\n\n");
+        else
+            printf("OK\n\n");
+
+        /* write new values as shadow image to nvram */
+        nvram_write (CFG_NV_SROM_COPY_ADDR, (void *)&eerev, CFG_SROM_SIZE);
+
+    } /*if (initSrom) */
+
+    /* copy current values as shadow image to nvram */
+    if (initSrom == 0 && copyNv == 1)
+        nvram_write (CFG_NV_SROM_COPY_ADDR, (void *)&eerev, CFG_SROM_SIZE);
+
+    /* update environment */
+    sprintf (buf, "%02x:%02x:%02x:%02x:%02x:%02x",
+            eerev.etheraddr[0], eerev.etheraddr[1],
+            eerev.etheraddr[2], eerev.etheraddr[3],
+            eerev.etheraddr[4], eerev.etheraddr[5]);
+    setenv ("ethaddr", buf);
+
+    /* set serial console as default */
+    if ((ptr = getenv ("console")) == NULL)
+        setenv ("console", "serial");
+
+    /* print actual board identification */
+    printf("Ident: %s  Ser %s  Rev %c%c\n",
+            eerev.board, (char *)&eerev.serial,
+            eerev.revision[0][0], eerev.revision[0][1]);
+
+    return (0);
+}
+
+/*----------------------------------------------------------------------------*/
diff --git a/board/eltec/elppc/mpc107_i2c.c b/board/eltec/elppc/mpc107_i2c.c
new file mode 100644
index 0000000..a4bf599
--- /dev/null
+++ b/board/eltec/elppc/mpc107_i2c.c
@@ -0,0 +1,320 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.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
+ */
+
+/* includes */
+#include <common.h>
+#include "srom.h"
+
+/* locals */
+static unsigned long mpc107_eumb_addr = 0;
+
+/*----------------------------------------------------------------------------*/
+
+/*
+ * calculate checksum for ELTEC revision srom
+ */
+unsigned long el_srom_checksum (ptr, size)
+register unsigned char *ptr;
+unsigned long size;
+{
+    u_long f, accu = 0;
+    u_int  i;
+    u_char byte;
+
+    for (; size; size--)
+    {
+        byte = *ptr++;
+        for (i = 8; i; i--)
+        {
+            f =  ((byte & 1) ^ (accu & 1)) ? 0x84083001 : 0;
+            accu >>= 1; accu ^= f;
+            byte >>= 1;
+        }
+    }
+    return(accu);
+}
+
+/*----------------------------------------------------------------------------*/
+
+static int mpc107_i2c_wait ( unsigned long timeout )
+{
+    unsigned long x;
+
+    while (((x = in32r(MPC107_I2CSR)) & 0x82) != 0x82)
+    {
+        if (!timeout--)
+            return -1;
+    }
+
+    if (x & 0x10)
+    {
+        return -1;
+    }
+    out32r(MPC107_I2CSR, 0);
+
+    return 0;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static int mpc107_i2c_wait_idle ( unsigned long timeout )
+{
+    while (in32r(MPC107_I2CSR) & 0x20)
+    {
+        if (!timeout--)
+            return -1;
+    }
+    return 0;
+}
+
+
+/*----------------------------------------------------------------------------*/
+
+int mpc107_i2c_read_byte (
+    unsigned char device,
+    unsigned char block,
+    unsigned char offset )
+{
+    unsigned long timeout = MPC107_I2C_TIMEOUT;
+    int data;
+
+    if (!mpc107_eumb_addr)
+        return -6;
+
+    mpc107_i2c_wait_idle (timeout);
+
+    /* Start with MEN */
+    out32r(MPC107_I2CCR, 0x80);
+
+    /* Start as master */
+    out32r(MPC107_I2CCR, 0xB0);
+    out32r(MPC107_I2CDR, (0xA0 | device | block));
+
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_read Error 1\n");
+        return -2;
+    }
+
+    if (in32r(MPC107_I2CSR)&0x1)
+    {
+        /* Generate STOP condition; device busy or not existing */
+        out32r(MPC107_I2CCR, 0x80);
+        return -1;
+    }
+
+    /* Data address */
+    out32r(MPC107_I2CDR, offset);
+
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_read Error 2\n");
+        return -3;
+    }
+
+    /* Switch to read - restart */
+    out32r(MPC107_I2CCR, 0xB4);
+    out32r(MPC107_I2CDR, (0xA1 | device | block));
+
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_read Error 3\n");
+        return -4;
+    }
+
+    out32r(MPC107_I2CCR, 0xA8); /* no ACK */
+    in32r(MPC107_I2CDR);
+
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_read Error 4\n");
+        return -5;
+    }
+    /* Generate STOP condition */
+    out32r(MPC107_I2CCR, 0x88);
+
+    /* read */
+    data = in32r(MPC107_I2CDR);
+
+    return (data);
+}
+
+/*----------------------------------------------------------------------------*/
+
+int mpc107_i2c_write_byte (
+    unsigned char device,
+    unsigned char block,
+    unsigned char offset,
+    unsigned char val )
+{
+
+    unsigned long timeout = MPC107_I2C_TIMEOUT;
+
+    if (!mpc107_eumb_addr)
+        return -6;
+
+    mpc107_i2c_wait_idle(timeout);
+
+    /* Start with MEN */
+    out32r(MPC107_I2CCR, 0x80);
+
+    /* Start as master */
+    out32r(MPC107_I2CCR, 0xB0);
+    out32r(MPC107_I2CDR, (0xA0 | device | block));
+
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_write Error 1\n");
+        return -1;
+    }
+
+    /* Data address */
+    out32r(MPC107_I2CDR, offset);
+
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_write Error 2\n");
+        return -1;
+    }
+
+    /* Write */
+    out32r(MPC107_I2CDR, val);
+    if (mpc107_i2c_wait(timeout) < 0)
+    {
+        printf("mpc107_i2c_write Error 3\n");
+        return -1;
+    }
+
+    /* Generate Stop Condition */
+    out32r(MPC107_I2CCR, 0x80);
+
+    /* Return ACK or no ACK */
+    return (in32r(MPC107_I2CSR) & 0x01);
+}
+
+/*----------------------------------------------------------------------------*/
+
+int mpc107_srom_load (
+    unsigned char addr,
+    unsigned char *pBuf,
+    int          cnt,
+    unsigned char device,
+    unsigned char block )
+{
+    register int i;
+    int val;
+    int timeout;
+
+    for (i = 0; i < cnt; i++)
+    {
+        timeout=100;
+        do
+        {
+            val = mpc107_i2c_read_byte (device, block, addr);
+            if (val < -1)
+            {
+            printf("i2c_read_error %d at dev %x block %x addr %x\n",
+                   val, device, block, addr);
+            return -1;
+            }
+            else if (timeout==0)
+            {
+                printf ("i2c_read_error: timeout at dev %x block %x addr %x\n",
+                        device, block, addr);
+                return -1;
+            }
+            timeout--;
+        } while (val == -1); /* if no ack: try again! */
+
+        *pBuf++ = (unsigned char)val;
+        addr++;
+
+        if ((addr == 0) && (i != cnt-1))    /* is it the same block ? */
+        {
+            if (block == FIRST_BLOCK)
+                block = SECOND_BLOCK;
+            else
+            {
+                printf ("ic2_read_error: read beyond 2. block !\n");
+                return -1;
+            }
+        }
+    }
+    udelay(100000);
+    return (cnt);
+}
+
+/*----------------------------------------------------------------------------*/
+
+int mpc107_srom_store (
+    unsigned char addr,
+    unsigned char *pBuf,
+    int          cnt,
+    unsigned char device,
+    unsigned char block )
+{
+    register int i;
+
+    for (i = 0; i < cnt; i++)
+    {
+        while (mpc107_i2c_write_byte (device,block,addr,*pBuf) == 1);
+        addr++;
+        pBuf++;
+
+        if ((addr == 0) && (i != cnt-1))     /* is it the same block ? */
+        {
+            if (block == FIRST_BLOCK)
+                block = SECOND_BLOCK;
+            else
+            {
+                printf ("ic2_write_error: write beyond 2. block !\n");
+                return -1;
+            }
+        }
+    }
+    udelay(100000);
+    return(cnt);
+}
+
+/*----------------------------------------------------------------------------*/
+
+int mpc107_i2c_init ( unsigned long eumb_addr, unsigned long divider )
+{
+    unsigned long x;
+
+    if (eumb_addr)
+        mpc107_eumb_addr = eumb_addr;
+    else
+        return -1;
+
+    /* Set I2C clock */
+    x = in32r(MPC107_I2CFDR) & 0xffffff00;
+    out32r(MPC107_I2CFDR, (x | divider));
+
+    /* Clear arbitration */
+    out32r(MPC107_I2CSR, 0);
+
+    return mpc107_eumb_addr;
+}
+
+/*----------------------------------------------------------------------------*/
diff --git a/board/eltec/elppc/pci.c b/board/eltec/elppc/pci.c
new file mode 100644
index 0000000..07158e6
--- /dev/null
+++ b/board/eltec/elppc/pci.c
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.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
+ */
+
+/*
+ * PCI initialisation for the MPC10x.
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <mpc106.h>
+
+#ifdef CONFIG_PCI
+
+struct pci_controller local_hose;
+
+void pci_init(void)
+{
+    struct pci_controller* hose = (struct pci_controller *)&local_hose;
+    u16 reg16;
+
+    hose->first_busno = 0;
+    hose->last_busno = 0xff;
+
+    pci_set_region(hose->regions + 0,
+        CFG_PCI_MEMORY_BUS,
+        CFG_PCI_MEMORY_PHYS,
+        CFG_PCI_MEMORY_SIZE,
+        PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+    /* PCI memory space */
+    pci_set_region(hose->regions + 1,
+        CFG_PCI_MEM_BUS,
+        CFG_PCI_MEM_PHYS,
+        CFG_PCI_MEM_SIZE,
+        PCI_REGION_MEM);
+
+    /* ISA/PCI memory space */
+    pci_set_region(hose->regions + 2,
+        CFG_ISA_MEM_BUS,
+        CFG_ISA_MEM_PHYS,
+        CFG_ISA_MEM_SIZE,
+        PCI_REGION_MEM);
+
+    /* PCI I/O space */
+    pci_set_region(hose->regions + 3,
+        CFG_PCI_IO_BUS,
+        CFG_PCI_IO_PHYS,
+        CFG_PCI_IO_SIZE,
+        PCI_REGION_IO);
+
+    /* ISA/PCI I/O space */
+    pci_set_region(hose->regions + 4,
+        CFG_ISA_IO_BUS,
+        CFG_ISA_IO_PHYS,
+        CFG_ISA_IO_SIZE,
+        PCI_REGION_IO);
+
+    hose->region_count = 5;
+
+    pci_setup_indirect(hose,
+        MPC106_REG_ADDR,
+        MPC106_REG_DATA);
+
+    pci_register_hose(hose);
+
+    hose->last_busno = pci_hose_scan(hose);
+
+    /* Initialises the MPC10x PCI Configuration regs. */
+    pci_read_config_word (PCI_BDF(0,0,0), PCI_COMMAND, &reg16);
+    reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+    pci_write_config_word(PCI_BDF(0,0,0), PCI_COMMAND, reg16);
+
+    /* Clear non-reserved bits in status register */
+    pci_write_config_word(PCI_BDF(0,0,0), PCI_STATUS, 0xffff);
+}
+
+#endif /* CONFIG_PCI */
diff --git a/board/eltec/elppc/srom.h b/board/eltec/elppc/srom.h
new file mode 100644
index 0000000..7924bcd
--- /dev/null
+++ b/board/eltec/elppc/srom.h
@@ -0,0 +1,102 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.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
+ */
+
+/* common srom defs */
+#define FIRST_DEVICE            0x00
+#define SECOND_DEVICE           0x04
+#define FIRST_BLOCK             0x00
+#define SECOND_BLOCK            0x02
+#define BLOCK_SIZE              0x100
+#define ERROR                   (-1)
+
+#define CLK2P0TO1_1MB_PB_0P5DH  0x79000100
+#define CLK2P5TO1_1MB_PB_0P5DH  0x7B000100
+
+#define CPU_TYPE_740            0x08
+#define CPU_TYPE_750            0x08
+#define CPU_TYPE                ((get_pvr()>>16)&0xffff)
+
+#define ABS(x)                  ((x<0)?-x:x)
+#define SROM_SHORT(pX)          (*(u8 *)(pX) | *((u8 *)(pX)+1) << 8)
+
+/* bab7xx ELTEC srom */
+#define I2C_BUS_DAT             (CFG_ISA_IO + 0x220)
+#define I2C_BUS_DIR             (CFG_ISA_IO + 0x221)
+
+/* srom at mpc107 */
+#define MPC107_I2CADDR          (mpc107_eumb_addr + 0x3000)     /* address      */
+#define MPC107_I2CFDR           (mpc107_eumb_addr + 0x3004)     /* freq divider */
+#define MPC107_I2CCR            (mpc107_eumb_addr + 0x3008)     /* control      */
+#define MPC107_I2CSR            (mpc107_eumb_addr + 0x300c)     /* status       */
+#define MPC107_I2CDR            (mpc107_eumb_addr + 0x3010)     /* data         */
+#define MPC107_I2C_TIMEOUT      10000000
+
+/* i82559 */
+#define EE_ADDR_BITS            6
+#define EE_SIZE                 0x40                            /* 0x40 words */
+#define EE_CHECKSUM             0xBABA
+
+/* dc21143 */
+#define DEC_SROM_SIZE           128
+
+
+/*
+ * structure of revision srom
+ */
+typedef struct  {
+    char    magic[8];           /* 000 - Magic number */
+    char    revrev[2];          /* 008 - Revision of structure */
+    unsigned short size;        /* 00A - Size of CRC area */
+    unsigned long  crc;         /* 00C - CRC */
+    char    board[16];          /* 010 - Board Revision information */
+    char    option[4][16];      /* 020 - Option Revision information */
+    char    serial[8];          /* 060 - Board serial number */
+    char    etheraddr[6];       /* 068 - Ethernet node addresse */
+    char    reserved[2];        /* 06E - Reserved */
+    char    revision[7][2];     /* 070 - Revision codes */
+    char    category[2];        /* 07E - Category codes */
+    char    text[64];           /* 080 - Text field */
+    char    res[64];            /* 0C0 - Reserved */
+} revinfo;
+
+unsigned long el_srom_checksum (unsigned char *ptr, unsigned long size);
+int el_srom_load  (unsigned char addr, unsigned char *buf, int cnt,
+                   unsigned char device, unsigned char block);
+int el_srom_store (unsigned char addr, unsigned char *buf, int cnt,
+                   unsigned char device, unsigned char block);
+
+int mpc107_i2c_init (unsigned long eumb_addr, unsigned long divider);
+int mpc107_i2c_read_byte (unsigned char device, unsigned char block, unsigned char offset);
+int mpc107_i2c_write_byte (unsigned char device, unsigned char block,
+                           unsigned char offset, unsigned char val);
+int mpc107_srom_load (unsigned char addr, unsigned char *pBuf, int cnt,
+                      unsigned char device, unsigned char block);
+int mpc107_srom_store (unsigned char addr, unsigned char *pBuf, int cnt,
+                       unsigned char device, unsigned char block);
+
+int dc_srom_load (unsigned short *dest);
+int dc_srom_store (unsigned short *src);
+
+unsigned short eepro100_srom_checksum (unsigned short *sromdata);
+void eepro100_srom_load (unsigned short *destination);
+int  eepro100_srom_store (unsigned short *source);