Initial revision

board/eltec/bab7xx/Makefile

+#
+# (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	= $(BOARD).o flash.o pci.o misc.o el_srom.o dc_srom.o l2cache.o
+
+SOBJS	= asm_init.o
+
+$(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
+
+#########################################################################
+
+
+
+
+
+
+
+
+

board/eltec/bab7xx/config.mk

+#
+# (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)

board/eltec/bab7xx/dc_srom.c

+/*
+ * (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
+ */
+
+/*
+ * SRom I/O routines.
+ */
+
+#include <common.h>
+#include <pci.h>
+#include "srom.h"
+
+#define SROM_RD         0x00004000    /* Read from Boot ROM */
+#define SROM_WR         0x00002000    /* Write to Boot ROM */
+#define SROM_SR         0x00000800    /* Select Serial ROM when set */
+
+#define DT_IN           0x00000004    /* Serial Data In */
+#define DT_CLK          0x00000002    /* Serial ROM Clock */
+#define DT_CS           0x00000001    /* Serial ROM Chip Select */
+
+static u_int         dc_srom_iobase;
+
+/*----------------------------------------------------------------------------*/
+
+static int inl(u_long addr)
+{
+    return le32_to_cpu(*(volatile u_long *)(addr));
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void outl (int command, u_long addr)
+{
+    *(volatile u_long *)(addr) = cpu_to_le32(command);
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void sendto_srom(u_int command, u_long addr)
+{
+    outl(command, addr);
+    udelay(1);
+
+    return;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static int getfrom_srom(u_long addr)
+{
+    s32 tmp;
+
+    tmp = inl(addr);
+    udelay(1);
+
+    return tmp;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void srom_latch (u_int command, u_long addr)
+{
+    sendto_srom (command, addr);
+    sendto_srom (command | DT_CLK, addr);
+    sendto_srom (command, addr);
+
+    return;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void srom_command_rd (u_int command, u_long addr)
+{
+    srom_latch (command, addr);
+    srom_latch (command, addr);
+    srom_latch ((command & 0x0000ff00) | DT_CS, addr);
+
+    return;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void srom_command_wr (u_int command, u_long addr)
+{
+    srom_latch (command, addr);
+    srom_latch ((command & 0x0000ff00) | DT_CS, addr);
+    srom_latch (command, addr);
+
+    return;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void srom_address(u_int command, u_long addr, u_char offset)
+{
+    int i;
+    signed char a;
+
+    a = (char)(offset << 2);
+    for (i=0; i<6; i++, a <<= 1)
+    {
+        srom_latch(command | ((a < 0) ? DT_IN : 0), addr);
+    }
+    udelay(1);
+
+    i = (getfrom_srom(addr) >> 3) & 0x01;
+
+    return;
+}
+/*----------------------------------------------------------------------------*/
+
+static short srom_data_rd (u_int command, u_long addr)
+{
+    int i;
+    short word = 0;
+    s32 tmp;
+
+    for (i=0; i<16; i++)
+    {
+        sendto_srom(command  | DT_CLK, addr);
+        tmp = getfrom_srom(addr);
+        sendto_srom(command, addr);
+
+        word = (word << 1) | ((tmp >> 3) & 0x01);
+    }
+
+    sendto_srom(command & 0x0000ff00, addr);
+
+    return word;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static int srom_data_wr (u_int command, u_long addr, short val)
+{
+    int i;
+    u_long longVal;
+    s32 tmp;
+
+    longVal = (u_long)(le16_to_cpu(val));
+
+    for (i=0; i<16; i++)
+    {
+        tmp = (longVal & 0x8000)>>13;
+
+        sendto_srom (tmp | command, addr);
+        sendto_srom (tmp | command  | DT_CLK, addr);
+        sendto_srom (tmp | command, addr);
+
+        longVal = longVal<<1;
+    }
+
+    sendto_srom(command & 0x0000ff00, addr);
+    sendto_srom(command, addr);
+
+    tmp = 100;
+    do
+    {
+        if ((getfrom_srom(dc_srom_iobase) & 0x8) == 0x8)
+            break;
+        udelay(1000);
+    } while (--tmp);
+
+    if (tmp == 0)
+    {
+        printf("Write DEC21143 SRom timed out !\n");
+        return (-1);
+    }
+
+    return 0;
+}
+
+
+/*----------------------------------------------------------------------------*/
+static short srom_rd (u_long addr, u_char offset)
+{
+    sendto_srom (SROM_RD | SROM_SR, addr);
+    srom_latch (SROM_RD | SROM_SR | DT_CS, addr);
+
+    srom_command_rd (SROM_RD | SROM_SR | DT_IN | DT_CS, addr);
+
+    srom_address (SROM_RD | SROM_SR | DT_CS, addr, offset);
+
+    return srom_data_rd (SROM_RD | SROM_SR | DT_CS, addr);
+}
+
+/*----------------------------------------------------------------------------*/
+
+static void srom_wr_enable (u_long addr)
+{
+    int i;
+
+    sendto_srom (SROM_WR | SROM_SR, addr);
+    srom_latch (SROM_WR | SROM_SR | DT_CS, addr);
+
+    srom_latch (SROM_WR | SROM_SR | DT_IN | DT_CS, addr);
+    srom_latch (SROM_WR | SROM_SR | DT_CS, addr);
+    srom_latch (SROM_WR | SROM_SR | DT_CS, addr);
+
+    for (i=0; i<6; i++)
+    {
+        srom_latch (SROM_WR | SROM_SR | DT_IN | DT_CS, addr);
+    }
+}
+
+/*----------------------------------------------------------------------------*/
+
+static int srom_wr (u_long addr, u_char offset, short val)
+{
+    srom_wr_enable (addr);
+
+    sendto_srom (SROM_WR | SROM_SR, addr);
+    srom_latch (SROM_WR | SROM_SR | DT_CS, addr);
+
+    srom_command_wr (SROM_WR | SROM_SR | DT_IN | DT_CS, addr);
+
+    srom_address (SROM_WR | SROM_SR | DT_CS, addr, offset);
+
+    return srom_data_wr (SROM_WR | SROM_SR | DT_CS, addr, val);
+}
+
+/*----------------------------------------------------------------------------*/
+/*
+ * load data from the srom
+ */
+int dc_srom_load (u_short *dest)
+{
+    int offset;
+    short tmp;
+
+    /* get srom iobase from local network controller */
+    pci_read_config_dword(PCI_BDF(0,14,0), PCI_BASE_ADDRESS_1, &dc_srom_iobase);
+    dc_srom_iobase &= PCI_BASE_ADDRESS_MEM_MASK;
+    dc_srom_iobase  = pci_mem_to_phys(PCI_BDF(0,14,0), dc_srom_iobase);
+    dc_srom_iobase += 0x48;            /* io offset for srom access */
+
+    memset (dest, 0, 128);
+    for (offset=0; offset<64; offset++)
+    {
+        tmp = srom_rd (dc_srom_iobase, offset);
+        *dest++ = le16_to_cpu(tmp);
+    }
+
+    return (0);
+}
+
+/*----------------------------------------------------------------------------*/
+
+/*
+ * store data into the srom
+ */
+int dc_srom_store (u_short *src)
+{
+    int offset;
+
+    /* get srom iobase from local network controller */
+    pci_read_config_dword(PCI_BDF(0,14,0), PCI_BASE_ADDRESS_1, &dc_srom_iobase);
+    dc_srom_iobase &= PCI_BASE_ADDRESS_MEM_MASK;
+    dc_srom_iobase  = pci_mem_to_phys(PCI_BDF(0,14,0), dc_srom_iobase);
+    dc_srom_iobase += 0x48;            /* io offset for srom access */
+
+    for (offset=0; offset<64; offset++)
+    {
+        if (srom_wr (dc_srom_iobase, offset, *src) == -1)
+                return (-1);
+        src++;
+    }
+
+    return (0);
+}
+
+/*----------------------------------------------------------------------------*/

board/eltec/bab7xx/flash.c

+/*
+ * (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;