Initial revision
diff --git a/board/cpu86/flash.c b/board/cpu86/flash.c
new file mode 100644
index 0000000..8cf761f
--- /dev/null
+++ b/board/cpu86/flash.c
@@ -0,0 +1,615 @@
+/*
+ * (C) Copyright 2001, 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Flash Routines for Intel devices
+ *
+ *--------------------------------------------------------------------
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include "cpu86.h"
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+/*-----------------------------------------------------------------------
+ */
+ulong flash_int_get_size (volatile unsigned long *baseaddr,
+ flash_info_t * info)
+{
+ short i;
+ unsigned long flashtest_h, flashtest_l;
+
+ info->sector_count = info->size = 0;
+ info->flash_id = FLASH_UNKNOWN;
+
+ /* Write query command sequence and test FLASH answer
+ */
+ baseaddr[0] = 0x00980098;
+ baseaddr[1] = 0x00980098;
+
+ flashtest_h = baseaddr[0]; /* manufacturer ID */
+ flashtest_l = baseaddr[1];
+
+ if (flashtest_h != INTEL_MANUFACT || flashtest_l != INTEL_MANUFACT)
+ return (0); /* no or unknown flash */
+
+ flashtest_h = baseaddr[2]; /* device ID */
+ flashtest_l = baseaddr[3];
+
+ if (flashtest_h != flashtest_l)
+ return (0);
+
+ switch (flashtest_h) {
+ case INTEL_ID_28F160C3B:
+ info->flash_id = FLASH_28F160C3B;
+ info->sector_count = 39;
+ info->size = 0x00800000; /* 4 * 2 MB = 8 MB */
+ break;
+ case INTEL_ID_28F160F3B:
+ info->flash_id = FLASH_28F160F3B;
+ info->sector_count = 39;
+ info->size = 0x00800000; /* 4 * 2 MB = 8 MB */
+ break;
+ default:
+ return (0); /* no or unknown flash */
+ }
+
+ info->flash_id |= INTEL_MANUFACT << 16; /* set manufacturer offset */
+
+ if (info->flash_id & FLASH_BTYPE) {
+ volatile unsigned long *tmp = baseaddr;
+
+ /* set up sector start adress table (bottom sector type)
+ * AND unlock the sectors (if our chip is 160C3)
+ */
+ for (i = 0; i < info->sector_count; i++) {
+ if ((info->flash_id & FLASH_TYPEMASK) == FLASH_28F160C3B) {
+ tmp[0] = 0x00600060;
+ tmp[1] = 0x00600060;
+ tmp[0] = 0x00D000D0;
+ tmp[1] = 0x00D000D0;
+ }
+ info->start[i] = (uint) tmp;
+ tmp += i < 8 ? 0x2000 : 0x10000; /* pointer arith */
+ }
+ }
+
+ memset (info->protect, 0, info->sector_count);
+
+ baseaddr[0] = 0x00FF00FF;
+ baseaddr[1] = 0x00FF00FF;
+
+ return (info->size);
+}
+
+static ulong flash_amd_get_size (vu_char *addr, flash_info_t *info)
+{
+ short i;
+ uchar vendor, devid;
+ ulong base = (ulong)addr;
+
+ /* Write auto select command: read Manufacturer ID */
+ addr[0x0555] = 0xAA;
+ addr[0x02AA] = 0x55;
+ addr[0x0555] = 0x90;
+
+ udelay(1000);
+
+ vendor = addr[0];
+ devid = addr[1] & 0xff;
+
+ /* only support AMD */
+ if (vendor != 0x01) {
+ return 0;
+ }
+
+ vendor &= 0xf;
+ devid &= 0xff;
+
+ if (devid == AMD_ID_F040B) {
+ info->flash_id = vendor << 16 | devid;
+ info->sector_count = 8;
+ info->size = info->sector_count * 0x10000;
+ }
+ else if (devid == AMD_ID_F080B) {
+ info->flash_id = vendor << 16 | devid;
+ info->sector_count = 16;
+ info->size = 4 * info->sector_count * 0x10000;
+ }
+ else if (devid == AMD_ID_F016D) {
+ info->flash_id = vendor << 16 | devid;
+ info->sector_count = 32;
+ info->size = 4 * info->sector_count * 0x10000;
+ }
+ else {
+ printf ("## Unknown Flash Type: %02x\n", devid);
+ return 0;
+ }
+
+ /* 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 char *)(info->start[i]);
+ info->protect[i] = addr[2] & 1;
+ }
+
+ /*
+ * Prevent writes to uninitialized FLASH.
+ */
+ if (info->flash_id != FLASH_UNKNOWN) {
+ addr = (vu_char *)info->start[0];
+ addr[0] = 0xF0; /* reset bank */
+ }
+
+ return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+unsigned long flash_init (void)
+{
+ unsigned long size_b0 = 0;
+ unsigned long size_b1 = 0;
+ int i;
+
+ /* Init: no FLASHes known
+ */
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ /* Disable flash protection */
+ CPU86_BCR |= (CPU86_BCR_FWPT | CPU86_BCR_FWRE);
+
+ /* Static FLASH Bank configuration here (only one bank) */
+
+ size_b0 = flash_int_get_size ((ulong *) CFG_FLASH_BASE, &flash_info[0]);
+ size_b1 = flash_amd_get_size ((uchar *) CFG_BOOTROM_BASE, &flash_info[1]);
+
+ if (size_b0 > 0 || size_b1 > 0) {
+
+ printf("(");
+
+ if (size_b0 > 0) {
+ puts ("Bank#1 - ");
+ print_size (size_b0, (size_b1 > 0) ? ", " : ") ");
+ }
+
+ if (size_b1 > 0) {
+ puts ("Bank#2 - ");
+ print_size (size_b1, ") ");
+ }
+ }
+ else {
+ printf ("## No FLASH found.\n");
+ return 0;
+ }
+ /* protect monitor and environment sectors
+ */
+
+#if CFG_MONITOR_BASE >= CFG_BOOTROM_BASE
+ if (size_b1) {
+ /* If U-Boot is booted from ROM the CFG_MONITOR_BASE > CFG_FLASH_BASE
+ * but we shouldn't protect it.
+ */
+
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, &flash_info[1]
+ );
+ }
+#else
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, &flash_info[0]
+ );
+#endif
+#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
+# if CFG_ENV_ADDR >= CFG_BOOTROM_BASE
+ if (size_b1) {
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[1]);
+ }
+# else
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+# endif
+#endif
+
+ return (size_b0 + size_b1);
+}
+
+/*-----------------------------------------------------------------------
+ */
+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 0x89:
+ printf ("INTEL ");
+ break;
+ case 0x1:
+ printf ("AMD ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_28F160C3B:
+ printf ("28F160C3B (16 Mbit, bottom sector)\n");
+ break;
+ case FLASH_28F160F3B:
+ printf ("28F160F3B (16 Mbit, bottom sector)\n");
+ break;
+ case AMD_ID_F040B:
+ printf ("AM29F040B (4 Mbit)\n");
+ break;
+ default:
+ printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ if (info->size < 0x100000)
+ printf (" Size: %ld KB in %d Sectors\n",
+ info->size >> 10, info->sector_count);
+ else
+ 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");
+}
+
+/*-----------------------------------------------------------------------
+ */
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ vu_char *addr = (vu_char *)(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");
+ }
+
+ /* Check the type of erased flash
+ */
+ if (info->flash_id >> 16 == 0x1) {
+ /* Erase AMD flash
+ */
+ l_sect = -1;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr[0x0555] = 0xAA;
+ addr[0x02AA] = 0x55;
+ addr[0x0555] = 0x80;
+ addr[0x0555] = 0xAA;
+ addr[0x02AA] = 0x55;
+
+ /* wait at least 80us - let's wait 1 ms */
+ udelay (1000);
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr = (vu_char *)(info->start[sect]);
+ addr[0] = 0x30;
+ 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 AMD_DONE;
+
+ start = get_timer (0);
+ last = start;
+ addr = (vu_char *)(info->start[l_sect]);
+ while ((addr[0] & 0x80) != 0x80) {
+ 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;
+ }
+ }
+
+AMD_DONE:
+ /* reset to read mode */
+ addr = (volatile unsigned char *)info->start[0];
+ addr[0] = 0xF0; /* reset bank */
+
+ } else {
+ /* Erase Intel flash
+ */
+
+ /* Start erase on unprotected sectors
+ */
+ for (sect = s_first; sect <= s_last; sect++) {
+ volatile ulong *addr =
+ (volatile unsigned long *) info->start[sect];
+
+ start = get_timer (0);
+ last = start;
+ if (info->protect[sect] == 0) {
+ /* Disable interrupts which might cause a timeout here
+ */
+ flag = disable_interrupts ();
+
+ /* Erase the block
+ */
+ addr[0] = 0x00200020;
+ addr[1] = 0x00200020;
+ addr[0] = 0x00D000D0;
+ addr[1] = 0x00D000D0;
+
+ /* re-enable interrupts if necessary
+ */
+ if (flag)
+ enable_interrupts ();
+
+ /* wait at least 80us - let's wait 1 ms
+ */
+ udelay (1000);
+
+ last = start;
+ while ((addr[0] & 0x00800080) != 0x00800080 ||
+ (addr[1] & 0x00800080) != 0x00800080) {
+ if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout (erase suspended!)\n");
+ /* Suspend erase
+ */
+ addr[0] = 0x00B000B0;
+ addr[1] = 0x00B000B0;
+ goto DONE;
+ }
+ /* show that we're waiting
+ */
+ if ((now - last) > 1000) { /* every second */
+ serial_putc ('.');
+ last = now;
+ }
+ }
+ if (addr[0] & 0x00220022 || addr[1] & 0x00220022) {
+ printf ("*** ERROR: erase failed!\n");
+ goto DONE;
+ }
+ }
+ /* Clear status register and reset to read mode
+ */
+ addr[0] = 0x00500050;
+ addr[1] = 0x00500050;
+ addr[0] = 0x00FF00FF;
+ addr[1] = 0x00FF00FF;
+ }
+ }
+
+ printf (" done\n");
+
+DONE:
+ return 0;
+}
+
+static int write_word (flash_info_t *, volatile unsigned long *, ulong);
+static int write_byte (flash_info_t *info, ulong dest, uchar data);
+
+/*-----------------------------------------------------------------------
+ * 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 v;
+ int i, l, rc, cc = cnt, res = 0;
+
+ if (info->flash_id >> 16 == 0x1) {
+
+ /* Write to AMD 8-bit flash
+ */
+ while (cnt > 0) {
+ if ((rc = write_byte(info, addr, *src)) != 0) {
+ return (rc);
+ }
+ addr++;
+ src++;
+ cnt--;
+ }
+
+ return (0);
+ } else {
+
+ /* Write to Intel 64-bit flash
+ */
+ for (v=0; cc > 0; addr += 4, cc -= 4 - l) {
+ l = (addr & 3);
+ addr &= ~3;
+
+ for (i = 0; i < 4; i++) {
+ v = (v << 8) + (i < l || i - l >= cc ?
+ *((unsigned char *) addr + i) : *src++);
+ }
+
+ if ((res = write_word (info, (volatile unsigned long *) addr, v)) != 0)
+ break;
+ }
+ }
+
+ return (res);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t * info, volatile unsigned long *addr,
+ ulong data)
+{
+ int flag, res = 0;
+ ulong start;
+
+ /* Check if Flash is (sufficiently) erased
+ */
+ if ((*addr & data) != data)
+ return (2);
+
+ /* Disable interrupts which might cause a timeout here
+ */
+ flag = disable_interrupts ();
+
+ *addr = 0x00400040;
+ *addr = data;
+
+ /* re-enable interrupts if necessary
+ */
+ if (flag)
+ enable_interrupts ();
+
+ start = get_timer (0);
+ while ((*addr & 0x00800080) != 0x00800080) {
+ if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+ /* Suspend program
+ */
+ *addr = 0x00B000B0;
+ res = 1;
+ goto OUT;
+ }
+ }
+
+ if (*addr & 0x00220022) {
+ printf ("*** ERROR: program failed!\n");
+ res = 1;
+ }
+
+OUT:
+ /* Clear status register and reset to read mode
+ */
+ *addr = 0x00500050;
+ *addr = 0x00FF00FF;
+
+ return (res);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a byte to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_byte (flash_info_t *info, ulong dest, uchar data)
+{
+ vu_char *addr = (vu_char *)(info->start[0]);
+ ulong start;
+ int flag;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*((vu_char *)dest) & data) != data) {
+ return (2);
+ }
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr[0x0555] = 0xAA;
+ addr[0x02AA] = 0x55;
+ addr[0x0555] = 0xA0;
+
+ *((vu_char *)dest) = data;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while ((*((vu_char *)dest) & 0x80) != (data & 0x80)) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ return (1);
+ }
+ }
+ return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/lwmon/README.keybd b/board/lwmon/README.keybd
new file mode 100644
index 0000000..bf759c6
--- /dev/null
+++ b/board/lwmon/README.keybd
@@ -0,0 +1,127 @@
+
+Tastaturabfrage:
+
+Die Implementierung / Decodierung beruht auf den Angaben aus dem Do-
+kument "PIC LWE-Tastatur" in der Fassung vom 9. 3. 2001, insbesonde-
+re Tabelle 3 im Kapitel 4.3 Tastencodes. In U-Boot werden die vom
+Keyboard-Controller gelesenen Daten hexadezimal codiert in der auto-
+matisch angelegten Environment-Variablen "keybd" übergeben. Ist kei-
+ne Taste gedrückt worden, steht dort:
+
+ keybd=000000000000000000
+
+Der decodierte Tastencode ("keybd") kann mit den "bootargs" an den
+Linux-Kernel übergeben und dort z. B. in einem Device-Treiber oder
+einer Applikation ausgewertet werden.
+
+
+
+Sonderfunktionen beim Booten:
+
+Es lassen sich eine oder mehrere (beliebig viele) Tasten oder Tasten-
+kombinationen definieren, die Sonderfunktionen auslösen, wenn diese
+Tasten beim Booten (Reset) gedrückt sind.
+
+Wird eine eingestellte Taste bzw. Tastenkombination erkannt, so wird
+in U-Boot noch vor dem Start des "Countdown" und somit vor jedem an-
+deren Kommando der Inhalt einer dieser Taste bzw. Tastenkombination
+zugeordneten Environment-Variablen ausführen.
+
+
+Die Environment-Variable "magic_keys" wird als Liste von Zeichen ver-
+standen, die als Suffix an den Namen "key_magic" angefügt werden und
+so die Namen der Environment-Variablen definieren, mit denen die
+Tasten (-kombinationen) festgelegt werden:
+
+Ist "magic_keys" NICHT definiert, so wird nur die in der Environment-
+Variablen "key_magic" codierte Tasten (-kombination) geprüft, und
+ggf. der Inhalt der Environment-Variablen "key_cmd" ausgeführt (ge-
+nauer: der Inhalt von "key_cmd" wird der Variablen "preboot" zugewie-
+sen, die ausgeführt wird, unmittelbar bevor die interaktive Kommando-
+interpretation beginnt).
+
+Enthält "magic_keys" z. B. die Zeichenkette "0123CB*", so werden
+nacheinander folgende Aktionen ausgeführt:
+
+ prüfe Tastencode ggf. führe aus Kommando
+ in Variable in Variable
+ -----------------------------------
+ key_magic0 ==> key_cmd0
+ key_magic1 ==> key_cmd1
+ key_magic2 ==> key_cmd2
+ key_magic3 ==> key_cmd3
+ key_magicC ==> key_cmdC
+ key_magicB ==> key_cmdB
+ key_magicA ==> key_cmdA
+ key_magic* ==> key_cmd*
+
+Hinweis: sobald ein aktivierter Tastencode erkannt wurde, wird die
+Bearbeitung abgebrochen; es wird daher höchstens eines der definier-
+ten Kommandos ausgeführt, wobei die Priorität durch die Suchreihen-
+folge festgelegt wird, also durch die Reihenfolge der Zeichen in der
+Varuiablen "magic_keys".
+
+
+Die Codierung der Tasten, die beim Booten gedrückt werden müssen, um
+eine Funktion auszulösen, erfolgt nach der Tastaturtabelle.
+
+Die Definitionen
+
+ => setenv key_magic0 3a+3b
+ => setenv key_cmd0 setenv bootdelay 30
+
+bedeuten dementsprechend, daß die Tasten mit den Codes 0x3A (Taste
+"F1") und 0x3B (Taste "F2") gleichzeitig gedrückt werden müssen. Sie
+können dort eine beliebige Tastenkombination eintragen (jeweils 2
+Zeichen für die Hex-Codes der Tasten, und '+' als Trennzeichen).
+
+Wird die eingestellte Tastenkombination erkannt, so wird in U-Boot
+noch vor dem Start des "Countdown" und somit vor jedem anderen Kom-
+mando das angebene Kommando ausgeführt und somit ein langes Boot-
+Delay eingetragen.
+
+Praktisch könnten Sie also in U-Boot "bootdelay" auf 0 setzen und
+somit stets ohne jede User-Interaktion automatisch booten, außer,
+wenn die beiden Tasten "F1" und "F2" beim Booten gedrückt werden:
+dann würde ein Boot-Delay von 30 Sekunden eingefügt.
+
+
+Hinweis: dem Zeichen '#' kommt innerhalb von "magic_keys" eine beson-
+dere Bedeutung zu: die dadurch definierte Key-Sequenz schaltet den
+Monitor in den "Debug-Modus" - das bedeutet zunächst, daß alle weite-
+ren Meldungen von U-Boot über das LCD-Display ausgegeben werden;
+außerdem kann man durch das mit dieser Tastenkombination verknüpfte
+Kommando z. B. die Linux-Bootmeldungen ebenfalls auf das LCD-Display
+legen, so daß der Boot-Vorgang direkt und ohne weitere Hilfsmittel
+analysiert werden kann.
+
+Beispiel:
+
+In U-Boot werden folgende Environment-Variablen gesetzt und abgespei-
+chert:
+
+(1) => setenv magic_keys 01234#X
+(2) => setenv key_cmd# setenv addfb setenv bootargs \\$(bootargs) console=tty0 console=ttyS1,\\$(baudrate)
+(3) => setenv nfsargs setenv bootargs root=/dev/nfs rw nfsroot=\$(serverip):\$(rootpath)
+(4) => setenv addip setenv bootargs \$(bootargs) ip=\$(ipaddr):\$(serverip):\$(gatewayip):\$(netmask):\$(hostname)::off panic=1
+(5) => setenv addfb setenv bootargs \$(bootargs) console=ttyS1,\$(baudrate)
+(6) => setenv bootcmd bootp\;run nfsargs\;run addip\;run addfb\;bootm
+
+Hierbei wird die Linux Commandline (in der Variablen "bootargs") im
+Boot-Kommando "bootcmd" (6) schrittweise zusammengesetzt: zunächst
+werden die für Root-Filesystem über NFS erforderlichen Optionen ge-
+setzt ("run nfsargs", vgl. (3)), dann die Netzwerkkonfiguration an-
+gefügt ("run addip", vgl. (4)), und schließlich die Systemconsole
+definiert ("run addfb").
+
+Dabei wird im Normalfall die Definition (5) verwendt; wurde aller-
+dings beim Reset die entsprechende Taste gedrückt gehalten, so wird
+diese Definition bei der Ausführung des in (2) definierten Kommandos
+überschrieben, so daß Linux die Bootmeldungen auch über das Frame-
+buffer-Device (=LCD-Display) ausgibt.
+
+Beachten Sie die Verdoppelung der '\'-Escapes in der Definition von
+"key_cmd#" - diese ist erforderlich, weil der String _zweimal_ inter-
+pretiert wird: das erste Mal bei der Eingabe von "key_cmd#", das
+zweite Mal, wenn der String (als Inhalt von "preboot") ausgeführt
+wird.
diff --git a/board/mousse/flash.c b/board/mousse/flash.c
new file mode 100644
index 0000000..3c4a802
--- /dev/null
+++ b/board/mousse/flash.c
@@ -0,0 +1,944 @@
+/*
+ * MOUSSE/MPC8240 Board definitions.
+ * Flash Routines for MOUSSE onboard AMD29LV106DB devices
+ *
+ * (C) Copyright 2000
+ * Marius Groeger <mgroeger@sysgo.de>
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 1999, by Curt McDowell, 08-06-99, Broadcom Corp.
+ * (C) Copyright 2001, James Dougherty, 07/18/01, Broadcom Corp.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include <malloc.h>
+#include "mousse.h"
+#include "flash.h"
+
+int flashLibDebug = 0;
+int flashLibInited = 0;
+
+#define OK 0
+#define ERROR -1
+#define STATUS int
+#define PRINTF if (flashLibDebug) printf
+#if 0
+#define PRIVATE static
+#else
+#define PRIVATE
+#endif
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+#define SLEEP_DELAY 166
+#define FLASH_SECTOR_SIZE (64*1024)
+/***********************************************************************
+ *
+ * Virtual Flash Devices on Mousse board
+ *
+ * These must be kept in sync with the definitions in flashLib.h.
+ *
+ ***********************************************************************/
+
+PRIVATE flash_dev_t flashDev[] = {
+ /* Bank 0 sector SA0 (16 kB) */
+ { "SA0",FLASH0_BANK, FLASH0_SEG0_START, 1, 14,
+ FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
+ },
+ /* Bank 0 sector SA1 (8 kB) */
+ { "SA1", FLASH0_BANK, FLASH0_SEG0_START + 0x4000, 1, 13,
+ FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
+ },
+ /* Bank 0 sector SA2 (8 kB) */
+ { "SA2", FLASH0_BANK, FLASH0_SEG0_START + 0x6000, 1, 13,
+ FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
+ },
+ /* Bank 0 sector SA3 is occluded by Mousse I/O devices */
+ /* Bank 0 sectors SA4-SA18, after Mousse devices up to PLCC (960 kB) */
+ { "KERNEL", FLASH0_BANK, FLASH0_SEG1_START, 15, 16,
+ FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
+ },
+ /* Bank 0 sectors SA19-SA26, jumper can occlude this by PLCC (512 kB) */
+ /* This is where the Kahlua boot vector and boot ROM code resides. */
+ { "BOOT",FLASH0_BANK, FLASH0_SEG2_START, 8, 16,
+ FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
+ },
+ /* Bank 0 sectors SA27-SA34 (512 kB) */
+ { "RAMDISK",FLASH0_BANK, FLASH0_SEG3_START, 8, 16,
+ FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
+ },
+};
+
+int flashDevCount = (sizeof (flashDev) / sizeof (flashDev[0]));
+
+#define DEV(no) (&flashDev[no])
+#define DEV_NO(dev) ((dev) - flashDev)
+
+/***********************************************************************
+ *
+ * Private Flash Routines
+ *
+ ***********************************************************************/
+
+/*
+ * The convention is:
+ *
+ * "addr" is always the PROM raw address, which is the address of an
+ * 8-bit quantity for flash 0 and 16-bit quantity for flash 1.
+ *
+ * "pos" is always a logical byte position from the PROM beginning.
+ */
+
+#define FLASH0_ADDR(dev, addr) \
+ ((unsigned char *) ((dev)->base + (addr)))
+
+#define FLASH0_WRITE(dev, addr, value) \
+ (*FLASH0_ADDR(dev, addr) = (value))
+
+#define FLASH0_READ(dev, addr) \
+ (*FLASH0_ADDR(dev, addr))
+
+PRIVATE int flashCheck(flash_dev_t *dev)
+{
+ if (! flashLibInited) {
+ printf("flashCheck: flashLib not initialized\n");
+ return ERROR;
+ }
+
+ if (dev < &flashDev[0] || dev >= &flashDev[flashDevCount]) {
+ printf("flashCheck: Bad dev parameter\n");
+ return ERROR;
+ }
+
+ if (! dev->found) {
+ printf("flashCheck: Device %d not available\n", DEV_NO(dev));
+ return ERROR;
+ }
+
+ return OK;
+}
+
+PRIVATE void flashReset(flash_dev_t *dev)
+{
+ PRINTF("flashReset: dev=%d\n", DEV_NO(dev));
+
+ if (dev->bank == FLASH0_BANK) {
+ FLASH0_WRITE(dev, 0x555, 0xaa);
+ FLASH0_WRITE(dev, 0xaaa, 0x55);
+ FLASH0_WRITE(dev, 0x555, 0xf0);
+ }
+
+ udelay(SLEEP_DELAY);
+
+ PRINTF("flashReset: done\n");
+}
+
+PRIVATE int flashProbe(flash_dev_t *dev)
+{
+ int rv, deviceID, vendorID;
+
+ PRINTF("flashProbe: dev=%d\n", DEV_NO(dev));
+
+ if (dev->bank != FLASH0_BANK) {
+ rv = ERROR;
+ goto DONE;
+ }
+
+ FLASH0_WRITE(dev, 0xaaa, 0xaa);
+ FLASH0_WRITE(dev, 0x555, 0x55);
+ FLASH0_WRITE(dev, 0xaaa, 0x90);
+
+ udelay(SLEEP_DELAY);
+
+ vendorID = FLASH0_READ(dev, 0);
+ deviceID = FLASH0_READ(dev, 2);
+
+ FLASH0_WRITE(dev, 0, 0xf0);
+
+ PRINTF("flashProbe: vendor=0x%x device=0x%x\n", vendorID, deviceID);
+
+ if (vendorID == dev->vendorID && deviceID == dev->deviceID)
+ rv = OK;
+ else
+ rv = ERROR;
+
+DONE:
+ PRINTF("flashProbe: rv=%d\n", rv);
+
+ return rv;
+}
+
+PRIVATE int flashWait(flash_dev_t *dev, int addr, int expect, int erase)
+{
+ int rv = ERROR;
+ int i, data;
+ int polls;
+#if 0
+ PRINTF("flashWait: dev=%d addr=0x%x expect=0x%x erase=%d\n",
+ DEV_NO(dev), addr, expect, erase);
+#endif
+
+ if (dev->bank != FLASH0_BANK) {
+ rv = ERROR;
+ goto done;
+ }
+
+ if (erase)
+ polls = FLASH_ERASE_SECTOR_TIMEOUT; /* Ticks */
+ else
+ polls = FLASH_PROGRAM_POLLS; /* Loops */
+
+ for (i = 0; i < polls; i++) {
+ if (erase)
+ udelay(SLEEP_DELAY);
+
+ data = FLASH0_READ(dev, addr);
+
+ if (((data ^ expect) & 0x80) == 0) {
+ rv = OK;
+ goto done;
+ }
+
+ if (data & 0x20) {
+ /*
+ * If the 0x20 bit has come on, it could actually be because
+ * the operation succeeded, so check the done bit again.
+ */
+
+ data = FLASH0_READ(dev, addr);
+
+ if (((data ^ expect) & 0x80) == 0) {
+ rv = OK;
+ goto done;
+ }
+
+ printf("flashWait: Program error (dev: %d, addr: 0x%x)\n",
+ DEV_NO(dev), addr);
+
+ flashReset(dev);
+ rv = ERROR;
+ goto done;
+ }
+ }
+
+ printf("flashWait: Timeout %s (dev: %d, addr: 0x%x)\n",
+ erase ? "erasing sector" : "programming byte",
+ DEV_NO(dev), addr);
+
+done:
+
+#if 0
+ PRINTF("flashWait: rv=%d\n", rv);
+#endif
+
+ return rv;
+}
+
+/***********************************************************************
+ *
+ * Public Flash Routines
+ *
+ ***********************************************************************/
+
+STATUS flashLibInit(void)
+{
+ int i;
+
+ PRINTF("flashLibInit: devices=%d\n", flashDevCount);
+
+ for (i = 0; i < flashDevCount; i++) {
+ flash_dev_t *dev = &flashDev[i];
+ /*
+ * For bank 1, probe both without and with byte swappage,
+ * so that this module works on both old and new Mousse boards.
+ */
+
+ flashReset(dev);
+
+ if (flashProbe(dev) != ERROR)
+ dev->found = 1;
+
+ flashReset(dev);
+
+ if (flashProbe(dev) != ERROR)
+ dev->found = 1;
+
+ dev->swap = 0;
+
+ if(dev->found){
+ PRINTF("\n FLASH %s[%d]: iobase=0x%x - %d sectors %d KB",
+ flashDev[i].name,i,flashDev[i].base, flashDev[i].sectors,
+ (flashDev[i].sectors * FLASH_SECTOR_SIZE)/1024);
+
+ }
+ }
+
+ flashLibInited = 1;
+
+ PRINTF("flashLibInit: done\n");
+
+ return OK;
+}
+
+STATUS flashEraseSector(flash_dev_t *dev, int sector)
+{
+ int pos, addr;
+
+ PRINTF("flashErasesector: dev=%d sector=%d\n", DEV_NO(dev), sector);
+
+ if (flashCheck(dev) == ERROR)
+ return ERROR;
+
+ if (sector < 0 || sector >= dev->sectors) {
+ printf("flashEraseSector: Sector out of range (dev: %d, sector: %d)\n",
+ DEV_NO(dev), sector);
+ return ERROR;
+ }
+
+ pos = FLASH_SECTOR_POS(dev, sector);
+
+ if (dev->bank != FLASH0_BANK) {
+ return ERROR;
+ }
+
+ addr = pos;
+
+ FLASH0_WRITE(dev, 0xaaa, 0xaa);
+ FLASH0_WRITE(dev, 0x555, 0x55);
+ FLASH0_WRITE(dev, 0xaaa, 0x80);
+ FLASH0_WRITE(dev, 0xaaa, 0xaa);
+ FLASH0_WRITE(dev, 0x555, 0x55);
+ FLASH0_WRITE(dev, addr, 0x30);
+
+ return flashWait(dev, addr, 0xff, 1);
+}
+
+/*
+ * Note: it takes about as long to flash all sectors together with Chip
+ * Erase as it does to flash them one at a time (about 30 seconds for 2
+ * MB). Also since we want to be able to treat subsets of sectors as if
+ * they were complete devices, we don't use Chip Erase.
+ */
+
+STATUS flashErase(flash_dev_t *dev)
+{
+ int sector;
+
+ PRINTF("flashErase: dev=%d sectors=%d\n", DEV_NO(dev), dev->sectors);
+
+ if (flashCheck(dev) == ERROR)
+ return ERROR;
+
+ for (sector = 0; sector < dev->sectors; sector++) {
+ if (flashEraseSector(dev, sector) == ERROR)
+ return ERROR;
+ }
+ return OK;
+}
+
+/*
+ * Read and write bytes
+ */
+
+STATUS flashRead(flash_dev_t *dev, int pos, char *buf, int len)
+{
+ int addr, words;
+
+ PRINTF("flashRead: dev=%d pos=0x%x buf=0x%x len=0x%x\n",
+ DEV_NO(dev), pos, (int) buf, len);
+
+ if (flashCheck(dev) == ERROR)
+ return ERROR;
+
+ if (pos < 0 || len < 0 || pos + len > FLASH_MAX_POS(dev)) {
+ printf("flashRead: Position out of range "
+ "(dev: %d, pos: 0x%x, len: 0x%x)\n",
+ DEV_NO(dev), pos, len);
+ return ERROR;
+ }
+
+ if (len == 0)
+ return OK;
+
+ if (dev->bank == FLASH0_BANK) {
+ addr = pos;
+ words = len;
+
+ PRINTF("flashRead: memcpy(0x%x, 0x%x, 0x%x)\n",
+ (int) buf, (int) FLASH0_ADDR(dev, pos), len);
+
+ memcpy(buf, FLASH0_ADDR(dev, addr), words);
+
+ }
+ PRINTF("flashRead: rv=OK\n");
+
+ return OK;
+}
+
+STATUS flashWrite(flash_dev_t *dev, int pos, char *buf, int len)
+{
+ int addr, words;
+
+ PRINTF("flashWrite: dev=%d pos=0x%x buf=0x%x len=0x%x\n",
+ DEV_NO(dev), pos, (int) buf, len);
+
+ if (flashCheck(dev) == ERROR)
+ return ERROR;
+
+ if (pos < 0 || len < 0 || pos + len > FLASH_MAX_POS(dev)) {
+ printf("flashWrite: Position out of range "
+ "(dev: %d, pos: 0x%x, len: 0x%x)\n",
+ DEV_NO(dev), pos, len);
+ return ERROR;
+ }
+
+ if (len == 0)
+ return OK;
+
+ if (dev->bank == FLASH0_BANK) {
+ unsigned char tmp;
+
+ addr = pos;
+ words = len;
+
+ while (words--) {
+ tmp = *buf;
+ if (~FLASH0_READ(dev, addr) & tmp) {
+ printf("flashWrite: Attempt to program 0 to 1 "
+ "(dev: %d, addr: 0x%x, data: 0x%x)\n",
+ DEV_NO(dev), addr, tmp);
+ return ERROR;
+ }
+ FLASH0_WRITE(dev, 0xaaa, 0xaa);
+ FLASH0_WRITE(dev, 0x555, 0x55);
+ FLASH0_WRITE(dev, 0xaaa, 0xa0);
+ FLASH0_WRITE(dev, addr, tmp);
+ if (flashWait(dev, addr, tmp, 0) < 0)
+ return ERROR;
+ buf++;
+ addr++;
+ }
+ }
+
+ PRINTF("flashWrite: rv=OK\n");
+
+ return OK;
+}
+
+/*
+ * flashWritable returns TRUE if a range contains all F's.
+ */
+
+STATUS flashWritable(flash_dev_t *dev, int pos, int len)
+{
+ int addr, words;
+ int rv = ERROR;
+
+ PRINTF("flashWritable: dev=%d pos=0x%x len=0x%x\n",
+ DEV_NO(dev), pos, len);
+
+ if (flashCheck(dev) == ERROR)
+ goto done;
+
+ if (pos < 0 || len < 0 || pos + len > FLASH_MAX_POS(dev)) {
+ printf("flashWritable: Position out of range "
+ "(dev: %d, pos: 0x%x, len: 0x%x)\n",
+ DEV_NO(dev), pos, len);
+ goto done;
+ }
+
+ if (len == 0) {
+ rv = 1;
+ goto done;
+ }
+
+ if (dev->bank == FLASH0_BANK) {
+ addr = pos;
+ words = len;
+
+ while (words--) {
+ if (FLASH0_READ(dev, addr) != 0xff) {
+ rv = 0;
+ goto done;
+ }
+ addr++;
+ }
+ }
+
+ rv = 1;
+
+ done:
+ PRINTF("flashWrite: rv=%d\n", rv);
+ return rv;
+}
+
+
+/*
+ * NOTE: the below code cannot run from FLASH!!!
+ */
+/***********************************************************************
+ *
+ * Flash Diagnostics
+ *
+ ***********************************************************************/
+
+STATUS flashDiag(flash_dev_t *dev)
+{
+ unsigned int *buf = 0;
+ int i, len, sector;
+ int rv = ERROR;
+
+ if (flashCheck(dev) == ERROR)
+ return ERROR;
+
+ printf("flashDiag: Testing device %d, "
+ "base: 0x%x, %d sectors @ %d kB = %d kB\n",
+ DEV_NO(dev), dev->base,
+ dev->sectors,
+ 1 << (dev->lgSectorSize - 10),
+ dev->sectors << (dev->lgSectorSize - 10));
+
+ len = 1 << dev->lgSectorSize;
+
+ printf("flashDiag: Erasing\n");
+
+ if (flashErase(dev) == ERROR) {
+ printf("flashDiag: Erase failed\n");
+ goto done;
+ }
+ printf("%d bytes requested ...\n", len);
+ buf = malloc(len);
+ printf("allocated %d bytes ...\n", len);
+ if (buf == 0) {
+ printf("flashDiag: Out of memory\n");
+ goto done;
+ }
+
+ /*
+ * Write unique counting pattern to each sector
+ */
+
+ for (sector = 0; sector < dev->sectors; sector++) {
+ printf("flashDiag: Write sector %d\n", sector);
+
+ for (i = 0; i < len / 4; i++)
+ buf[i] = sector << 24 | i;
+
+ if (flashWrite(dev,
+ sector << dev->lgSectorSize,
+ (char *) buf,
+ len) == ERROR) {
+ printf("flashDiag: Write failed (dev: %d, sector: %d)\n",
+ DEV_NO(dev), sector);
+ goto done;
+ }
+ }
+
+ /*
+ * Verify
+ */
+
+ for (sector = 0; sector < dev->sectors; sector++) {
+ printf("flashDiag: Verify sector %d\n", sector);
+
+ if (flashRead(dev,
+ sector << dev->lgSectorSize,
+ (char *) buf,
+ len) == ERROR) {
+ printf("flashDiag: Read failed (dev: %d, sector: %d)\n",
+ DEV_NO(dev), sector);
+ goto done;
+ }
+
+ for (i = 0; i < len / 4; i++) {
+ if (buf[i] != (sector << 24 | i)) {
+ printf("flashDiag: Verify error "
+ "(dev: %d, sector: %d, offset: 0x%x)\n",
+ DEV_NO(dev), sector, i);
+ printf("flashDiag: Expected 0x%08x, got 0x%08x\n",
+ sector << 24 | i, buf[i]);
+
+ goto done;
+ }
+ }
+ }
+
+ printf("flashDiag: Erasing\n");
+
+ if (flashErase(dev) == ERROR) {
+ printf("flashDiag: Final erase failed\n");
+ goto done;
+ }
+
+ rv = OK;
+
+ done:
+ if (buf)
+ free(buf);
+
+ if (rv == OK)
+ printf("flashDiag: Device %d passed\n", DEV_NO(dev));
+ else
+ printf("flashDiag: Device %d failed\n", DEV_NO(dev));
+
+ return rv;
+}
+
+STATUS flashDiagAll(void)
+{
+ int i;
+ int rv = OK;
+
+ PRINTF("flashDiagAll: devices=%d\n", flashDevCount);
+
+ for (i = 0; i < flashDevCount; i++) {
+ flash_dev_t *dev = &flashDev[i];
+
+ if (dev->found && flashDiag(dev) == ERROR)
+ rv = ERROR;
+ }
+
+ if (rv == OK)
+ printf("flashDiagAll: Passed\n");
+ else
+ printf("flashDiagAll: Failed because of earlier errors\n");
+
+ return OK;
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+unsigned long flash_init (void)
+{
+ unsigned long size = 0;
+ flash_dev_t *dev = NULL;
+ flashLibInit();
+
+ /*
+ * Provide info for FLASH (up to 960K) of Kernel Image data.
+ */
+ dev = FLASH_DEV_BANK0_LOW;
+ flash_info[FLASH_BANK_KERNEL].flash_id =
+ (dev->vendorID << 16) | dev->deviceID;
+ flash_info[FLASH_BANK_KERNEL].sector_count = dev->sectors;
+ flash_info[FLASH_BANK_KERNEL].size =
+ flash_info[FLASH_BANK_KERNEL].sector_count * FLASH_SECTOR_SIZE;
+ flash_info[FLASH_BANK_KERNEL].start[FIRST_SECTOR] = dev->base;
+ size += flash_info[FLASH_BANK_KERNEL].size;
+
+ /*
+ * Provide info for 512K PLCC FLASH ROM (U-Boot)
+ */
+ dev = FLASH_DEV_BANK0_BOOT;
+ flash_info[FLASH_BANK_BOOT].flash_id =
+ (dev->vendorID << 16) | dev->deviceID;
+ flash_info[FLASH_BANK_BOOT].sector_count = dev->sectors;
+ flash_info[FLASH_BANK_BOOT].size =
+ flash_info[FLASH_BANK_BOOT].sector_count * FLASH_SECTOR_SIZE;
+ flash_info[FLASH_BANK_BOOT].start[FIRST_SECTOR] = dev->base;
+ size += flash_info[FLASH_BANK_BOOT].size;
+
+
+ /*
+ * Provide info for 512K FLASH0 segment (U-Boot)
+ */
+ dev = FLASH_DEV_BANK0_HIGH;
+ flash_info[FLASH_BANK_AUX].flash_id =
+ (dev->vendorID << 16) | dev->deviceID;
+ flash_info[FLASH_BANK_AUX].sector_count = dev->sectors;
+ flash_info[FLASH_BANK_AUX].size =
+ flash_info[FLASH_BANK_AUX].sector_count * FLASH_SECTOR_SIZE;
+ flash_info[FLASH_BANK_AUX].start[FIRST_SECTOR] = dev->base;
+ size += flash_info[FLASH_BANK_AUX].size;
+
+
+ return size;
+}
+
+/*
+ * Get flash device from U-Boot flash info.
+ */
+flash_dev_t*
+getFlashDevFromInfo(flash_info_t* info)
+{
+ int i;
+
+ if(!info)
+ return NULL;
+
+ for (i = 0; i < flashDevCount; i++) {
+ flash_dev_t *dev = &flashDev[i];
+ if(dev->found && (dev->base == info->start[0]))
+ return dev;
+ }
+ printf("ERROR: notice, no FLASH mapped at address 0x%x\n",
+ (unsigned int)info->start[0]);
+ return NULL;
+}
+
+ulong
+flash_get_size (vu_long *addr, flash_info_t *info)
+{
+ int i;
+ for(i = 0; i < flashDevCount; i++) {
+ flash_dev_t *dev = &flashDev[i];
+ if(dev->found){
+ if(dev->base == (unsigned int)addr){
+ info->flash_id = (dev->vendorID << 16) | dev->deviceID;
+ info->sector_count = dev->sectors;
+ info->size = info->sector_count * FLASH_SECTOR_SIZE;
+ return dev->sectors * FLASH_SECTOR_SIZE;
+ }
+ }
+ }
+ return 0;
+}
+
+void
+flash_print_info (flash_info_t *info)
+{
+ int i;
+ unsigned int chip;
+
+ 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;
+ }
+ chip = (unsigned int) info->flash_id & 0x000000ff;
+
+ switch (chip) {
+
+ case AMD_ID_F040B:
+ printf ("AM29F040B (4 Mbit)\n");
+ break;
+
+ case AMD_ID_LV160B:
+ case FLASH_AM160LV:
+ case 0x49:
+ printf ("AM29LV160B (16 Mbit / 2M x 8bit)\n");
+ break;
+
+ default:
+ printf ("Unknown Chip Type:0x%x\n", chip);
+ break;
+ }
+
+ printf (" Size: %ld bytes in %d Sectors\n",
+ info->size, 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[FIRST_SECTOR] + i*FLASH_SECTOR_SIZE,
+ info->protect[i] ? " (RO)" : " "
+ );
+ }
+ printf ("\n");
+}
+
+
+/*
+ * Erase a range of flash sectors.
+ */
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ vu_long *addr = (vu_long*)(info->start[0]);
+ int prot, sect, l_sect;
+ flash_dev_t* dev = NULL;
+
+ 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;
+
+ /* Start erase on unprotected sectors */
+ dev = getFlashDevFromInfo(info);
+ if(dev){
+ printf("Erase FLASH[%s] -%d sectors:", dev->name, dev->sectors);
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr = (vu_long*)(dev->base);
+ /* printf("erase_sector: sector=%d, addr=0x%x\n",
+ sect, addr); */
+ printf(".");
+ if(ERROR == flashEraseSector(dev, sect)){
+ printf("ERROR: could not erase sector %d on FLASH[%s]\n",
+ sect, dev->name);
+ return 1;
+ }
+ }
+ }
+ }
+ printf (" done\n");
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * 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)
+{
+
+ flash_dev_t* dev = getFlashDevFromInfo(info);
+ int addr = dest - info->start[0];
+
+ if (! dev)
+ return 1;
+
+ if(OK != flashWrite(dev, addr, (char*)&data, sizeof(ulong))){
+ printf("ERROR: could not write to addr=0x%x, data=0x%x\n",
+ (unsigned int)addr, (unsigned)data);
+ return 1;
+ }
+
+ if((addr % FLASH_SECTOR_SIZE) == 0)
+ printf(".");
+
+
+ PRINTF("write_word:0x%x, base=0x%x, addr=0x%x, data=0x%x\n",
+ (unsigned)info->start[0],
+ (unsigned)dest,
+ (unsigned)(dest - info->start[0]),
+ (unsigned)data);
+
+
+
+ return (0);
+}
+
+
+/*-----------------------------------------------------------------------
+ * 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;
+ flash_dev_t* dev = getFlashDevFromInfo(info);
+
+ if( dev ) {
+ printf("FLASH[%s]:", dev->name);
+ 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));
+ }
+ return 1;
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/mousse/m48t59y.c b/board/mousse/m48t59y.c
new file mode 100644
index 0000000..7205a96
--- /dev/null
+++ b/board/mousse/m48t59y.c
@@ -0,0 +1,323 @@
+/*
+ * SGS M48-T59Y TOD/NVRAM Driver
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 1999, by Curt McDowell, 08-06-99, Broadcom Corp.
+ *
+ * (C) Copyright 2001, James Dougherty, 07/18/01, Broadcom Corp.
+ *
+ * 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
+ */
+
+/*
+ * SGS M48-T59Y TOD/NVRAM Driver
+ *
+ * The SGS M48 an 8K NVRAM starting at offset M48_BASE_ADDR and
+ * continuing for 8176 bytes. After that starts the Time-Of-Day (TOD)
+ * registers which are used to set/get the internal date/time functions.
+ *
+ * This module implements Y2K compliance by taking full year numbers
+ * and translating back and forth from the TOD 2-digit year.
+ *
+ * NOTE: for proper interaction with an operating system, the TOD should
+ * be used to store Universal Coordinated Time (GMT) and timezone
+ * conversions should be used.
+ *
+ * Here is a diagram of the memory layout:
+ *
+ * +---------------------------------------------+ 0xffe0a000
+ * | Non-volatile memory | .
+ * | | .
+ * | (8176 bytes of Non-volatile memory) | .
+ * | | .
+ * +---------------------------------------------+ 0xffe0bff0
+ * | Flags |
+ * +---------------------------------------------+ 0xffe0bff1
+ * | Unused |
+ * +---------------------------------------------+ 0xffe0bff2
+ * | Alarm Seconds |
+ * +---------------------------------------------+ 0xffe0bff3
+ * | Alarm Minutes |
+ * +---------------------------------------------+ 0xffe0bff4
+ * | Alarm Date |
+ * +---------------------------------------------+ 0xffe0bff5
+ * | Interrupts |
+ * +---------------------------------------------+ 0xffe0bff6
+ * | WatchDog |
+ * +---------------------------------------------+ 0xffe0bff7
+ * | Calibration |
+ * +---------------------------------------------+ 0xffe0bff8
+ * | Seconds |
+ * +---------------------------------------------+ 0xffe0bff9
+ * | Minutes |
+ * +---------------------------------------------+ 0xffe0bffa
+ * | Hours |
+ * +---------------------------------------------+ 0xffe0bffb
+ * | Day |
+ * +---------------------------------------------+ 0xffe0bffc
+ * | Date |
+ * +---------------------------------------------+ 0xffe0bffd
+ * | Month |
+ * +---------------------------------------------+ 0xffe0bffe
+ * | Year (2 digits only) |
+ * +---------------------------------------------+ 0xffe0bfff
+ */
+#include <common.h>
+#include <rtc.h>
+#include "mousse.h"
+
+/*
+ * Imported from mousse.h:
+ *
+ * TOD_REG_BASE Base of m48t59y TOD registers
+ * SYS_TOD_UNPROTECT() Disable NVRAM write protect
+ * SYS_TOD_PROTECT() Re-enable NVRAM write protect
+ */
+
+#define YEAR 0xf
+#define MONTH 0xe
+#define DAY 0xd
+#define DAY_OF_WEEK 0xc
+#define HOUR 0xb
+#define MINUTE 0xa
+#define SECOND 0x9
+#define CONTROL 0x8
+#define WATCH 0x7
+#define INTCTL 0x6
+#define WD_DATE 0x5
+#define WD_HOUR 0x4
+#define WD_MIN 0x3
+#define WD_SEC 0x2
+#define _UNUSED 0x1
+#define FLAGS 0x0
+
+#define M48_ADDR ((volatile unsigned char *) TOD_REG_BASE)
+
+int m48_tod_init(void)
+{
+ SYS_TOD_UNPROTECT();
+
+ M48_ADDR[CONTROL] = 0;
+ M48_ADDR[WATCH] = 0;
+ M48_ADDR[INTCTL] = 0;
+
+ /*
+ * If the oscillator is currently stopped (as on a new part shipped
+ * from the factory), start it running.
+ *
+ * Here is an example of the TOD bytes on a brand new M48T59Y part:
+ * 00 00 00 00 00 00 00 00 00 88 8c c3 bf c8 f5 01
+ */
+
+ if (M48_ADDR[SECOND] & 0x80)
+ M48_ADDR[SECOND] = 0;
+
+ /* Is battery low */
+ if ( M48_ADDR[FLAGS] & 0x10) {
+ printf("NOTICE: Battery low on Real-Time Clock (replace SNAPHAT).\n");
+ }
+
+ SYS_TOD_PROTECT();
+
+ return 0;
+}
+
+/*
+ * m48_tod_set
+ */
+
+static int to_bcd(int value)
+{
+ return value / 10 * 16 + value % 10;
+}
+
+static int from_bcd(int value)
+{
+ return value / 16 * 10 + value % 16;
+}
+
+static int day_of_week(int y, int m, int d) /* 0-6 ==> Sun-Sat */
+{
+ static int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
+ y -= m < 3;
+ return (y + y/4 - y/100 + y/400 + t[m-1] + d) % 7;
+}
+
+/*
+ * Note: the TOD should store the current GMT
+ */
+
+int m48_tod_set(int year, /* 1980-2079 */
+ int month, /* 01-12 */
+ int day, /* 01-31 */
+ int hour, /* 00-23 */
+ int minute, /* 00-59 */
+ int second) /* 00-59 */
+
+{
+ SYS_TOD_UNPROTECT();
+
+ M48_ADDR[CONTROL] |= 0x80; /* Set WRITE bit */
+
+ M48_ADDR[YEAR] = to_bcd(year % 100);
+ M48_ADDR[MONTH] = to_bcd(month);
+ M48_ADDR[DAY] = to_bcd(day);
+ M48_ADDR[DAY_OF_WEEK] = day_of_week(year, month, day) + 1;
+ M48_ADDR[HOUR] = to_bcd(hour);
+ M48_ADDR[MINUTE] = to_bcd(minute);
+ M48_ADDR[SECOND] = to_bcd(second);
+
+ M48_ADDR[CONTROL] &= ~0x80; /* Clear WRITE bit */
+
+ SYS_TOD_PROTECT();
+
+ return 0;
+}
+
+/*
+ * Note: the TOD should store the current GMT
+ */
+
+int m48_tod_get(int *year, /* 1980-2079 */
+ int *month, /* 01-12 */
+ int *day, /* 01-31 */
+ int *hour, /* 00-23 */
+ int *minute, /* 00-59 */
+ int *second) /* 00-59 */
+{
+ int y;
+
+ SYS_TOD_UNPROTECT();
+
+ M48_ADDR[CONTROL] |= 0x40; /* Set READ bit */
+
+ y = from_bcd(M48_ADDR[YEAR]);
+ *year = y < 80 ? 2000 + y : 1900 + y;
+ *month = from_bcd(M48_ADDR[MONTH]);
+ *day = from_bcd(M48_ADDR[DAY]);
+ /* day_of_week = M48_ADDR[DAY_OF_WEEK] & 0xf; */
+ *hour = from_bcd(M48_ADDR[HOUR]);
+ *minute = from_bcd(M48_ADDR[MINUTE]);
+ *second = from_bcd(M48_ADDR[SECOND] & 0x7f);
+
+ M48_ADDR[CONTROL] &= ~0x40; /* Clear READ bit */
+
+ SYS_TOD_PROTECT();
+
+ return 0;
+}
+
+int m48_tod_get_second(void)
+{
+ return from_bcd(M48_ADDR[SECOND] & 0x7f);
+}
+
+/*
+ * Watchdog function
+ *
+ * If usec is 0, the watchdog timer is disarmed.
+ *
+ * If usec is non-zero, the watchdog timer is armed (or re-armed) for
+ * approximately usec microseconds (if the exact requested usec is
+ * not supported by the chip, the next higher available value is used).
+ *
+ * Minimum watchdog timeout = 62500 usec
+ * Maximum watchdog timeout = 124 sec (124000000 usec)
+ */
+
+void m48_watchdog_arm(int usec)
+{
+ int mpy, res;
+
+ SYS_TOD_UNPROTECT();
+
+ if (usec == 0) {
+ res = 0;
+ mpy = 0;
+ } else if (usec < 2000000) { /* Resolution: 1/16s if below 2s */
+ res = 0;
+ mpy = (usec + 62499) / 62500;
+ } else if (usec < 8000000) { /* Resolution: 1/4s if below 8s */
+ res = 1;
+ mpy = (usec + 249999) / 250000;
+ } else if (usec < 32000000) { /* Resolution: 1s if below 32s */
+ res = 2;
+ mpy = (usec + 999999) / 1000000;
+ } else { /* Resolution: 4s up to 124s */
+ res = 3;
+ mpy = (usec + 3999999) / 4000000;
+ if (mpy > 31)
+ mpy = 31;
+ }
+
+ M48_ADDR[WATCH] = (0x80 | /* Steer to RST signal (IRQ = N/C) */
+ mpy << 2 |
+ res);
+
+ SYS_TOD_PROTECT();
+}
+
+/*
+ * U-Boot RTC support.
+ */
+void
+rtc_get( struct rtc_time *tmp )
+{
+ m48_tod_get(&tmp->tm_year,
+ &tmp->tm_mon,
+ &tmp->tm_mday,
+ &tmp->tm_hour,
+ &tmp->tm_min,
+ &tmp->tm_sec);
+ tmp->tm_yday = 0;
+ tmp->tm_isdst= 0;
+
+#ifdef RTC_DEBUG
+ printf( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec );
+#endif
+}
+
+void
+rtc_set( struct rtc_time *tmp )
+{
+ m48_tod_set(tmp->tm_year, /* 1980-2079 */
+ tmp->tm_mon, /* 01-12 */
+ tmp->tm_mday, /* 01-31 */
+ tmp->tm_hour, /* 00-23 */
+ tmp->tm_min, /* 00-59 */
+ tmp->tm_sec); /* 00-59 */
+
+#ifdef RTC_DEBUG
+ printf( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+#endif
+
+}
+
+void
+rtc_reset (void)
+{
+ m48_tod_init();
+}
+
diff --git a/board/pm826/flash.c b/board/pm826/flash.c
new file mode 100644
index 0000000..4d5147b
--- /dev/null
+++ b/board/pm826/flash.c
@@ -0,0 +1,377 @@
+/*
+ * (C) Copyright 2001, 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Flash Routines for Intel devices
+ *
+ *--------------------------------------------------------------------
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+/*-----------------------------------------------------------------------
+ */
+ulong flash_get_size (volatile unsigned long *baseaddr,
+ flash_info_t * info)
+{
+ short i;
+ unsigned long flashtest_h, flashtest_l;
+
+ info->sector_count = info->size = 0;
+ info->flash_id = FLASH_UNKNOWN;
+
+ /* Write query command sequence and test FLASH answer
+ */
+ baseaddr[0] = 0x00980098;
+ baseaddr[1] = 0x00980098;
+
+ flashtest_h = baseaddr[0]; /* manufacturer ID */
+ flashtest_l = baseaddr[1];
+
+ if (flashtest_h != INTEL_MANUFACT || flashtest_l != INTEL_MANUFACT)
+ return (0); /* no or unknown flash */
+
+ flashtest_h = baseaddr[2]; /* device ID */
+ flashtest_l = baseaddr[3];
+
+ if (flashtest_h != flashtest_l)
+ return (0);
+
+ switch (flashtest_h) {
+ case INTEL_ID_28F160C3B:
+ info->flash_id = FLASH_28F160C3B;
+ info->sector_count = 39;
+ info->size = 0x00800000; /* 4 * 2 MB = 8 MB */
+ break;
+ case INTEL_ID_28F160F3B:
+ info->flash_id = FLASH_28F160F3B;
+ info->sector_count = 39;
+ info->size = 0x00800000; /* 4 * 2 MB = 8 MB */
+ break;
+ default:
+ return (0); /* no or unknown flash */
+ }
+
+ info->flash_id |= INTEL_MANUFACT << 16; /* set manufacturer offset */
+
+ if (info->flash_id & FLASH_BTYPE) {
+ volatile unsigned long *tmp = baseaddr;
+
+ /* set up sector start adress table (bottom sector type)
+ * AND unlock the sectors (if our chip is 160C3)
+ */
+ for (i = 0; i < info->sector_count; i++) {
+ if ((info->flash_id & FLASH_TYPEMASK) == FLASH_28F160C3B) {
+ tmp[0] = 0x00600060;
+ tmp[1] = 0x00600060;
+ tmp[0] = 0x00D000D0;
+ tmp[1] = 0x00D000D0;
+ }
+ info->start[i] = (uint) tmp;
+ tmp += i < 8 ? 0x2000 : 0x10000; /* pointer arith */
+ }
+ }
+
+ memset (info->protect, 0, info->sector_count);
+
+ baseaddr[0] = 0x00FF00FF;
+ baseaddr[1] = 0x00FF00FF;
+
+ return (info->size);
+}
+
+/*-----------------------------------------------------------------------
+ */
+unsigned long flash_init (void)
+{
+ unsigned long size_b0 = 0;
+ int i;
+
+ /* Init: no FLASHes known
+ */
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ /* Static FLASH Bank configuration here (only one bank) */
+
+ size_b0 = flash_get_size ((ulong *) CFG_FLASH0_BASE, &flash_info[0]);
+ if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
+ printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+ size_b0, size_b0 >> 20);
+ }
+
+ /* protect monitor and environment sectors
+ */
+
+#ifndef CONFIG_BOOT_ROM
+ /* If U-Boot is booted from ROM the CFG_MONITOR_BASE > CFG_FLASH0_BASE
+ * but we shouldn't protect it.
+ */
+
+# 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
+#endif /* CONFIG_BOOT_ROM */
+
+#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 (size_b0);
+}
+
+/*-----------------------------------------------------------------------
+ */
+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 0x89:
+ printf ("INTEL ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_28F160C3B:
+ printf ("28F160C3B (16 M, bottom sector)\n");
+ break;
+ case FLASH_28F160F3B:
+ printf ("28F160F3B (16 M, bottom sector)\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");
+}
+
+/*-----------------------------------------------------------------------
+ */
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ int flag, prot, 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");
+ }
+
+ /* Start erase on unprotected sectors
+ */
+ for (sect = s_first; sect <= s_last; sect++) {
+ volatile ulong *addr =
+ (volatile unsigned long *) info->start[sect];
+
+ start = get_timer (0);
+ last = start;
+ if (info->protect[sect] == 0) {
+ /* Disable interrupts which might cause a timeout here
+ */
+ flag = disable_interrupts ();
+
+ /* Erase the block
+ */
+ addr[0] = 0x00200020;
+ addr[1] = 0x00200020;
+ addr[0] = 0x00D000D0;
+ addr[1] = 0x00D000D0;
+
+ /* re-enable interrupts if necessary
+ */
+ if (flag)
+ enable_interrupts ();
+
+ /* wait at least 80us - let's wait 1 ms
+ */
+ udelay (1000);
+
+ last = start;
+ while ((addr[0] & 0x00800080) != 0x00800080 ||
+ (addr[1] & 0x00800080) != 0x00800080) {
+ if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout (erase suspended!)\n");
+ /* Suspend erase
+ */
+ addr[0] = 0x00B000B0;
+ addr[1] = 0x00B000B0;
+ goto DONE;
+ }
+ /* show that we're waiting
+ */
+ if ((now - last) > 1000) { /* every second */
+ serial_putc ('.');
+ last = now;
+ }
+ }
+ if (addr[0] & 0x00220022 || addr[1] & 0x00220022) {
+ printf ("*** ERROR: erase failed!\n");
+ goto DONE;
+ }
+ }
+ /* Clear status register and reset to read mode
+ */
+ addr[0] = 0x00500050;
+ addr[1] = 0x00500050;
+ addr[0] = 0x00FF00FF;
+ addr[1] = 0x00FF00FF;
+ }
+
+ printf (" done\n");
+
+DONE:
+ return 0;
+}
+
+static int write_word (flash_info_t *, volatile unsigned long *, ulong);
+
+/*-----------------------------------------------------------------------
+ * 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 v;
+ int i, l, cc = cnt, res = 0;
+
+
+ for (v=0; cc > 0; addr += 4, cc -= 4 - l) {
+ l = (addr & 3);
+ addr &= ~3;
+
+ for (i = 0; i < 4; i++) {
+ v = (v << 8) + (i < l || i - l >= cc ?
+ *((unsigned char *) addr + i) : *src++);
+ }
+
+ if ((res = write_word (info, (volatile unsigned long *) addr, v)) != 0)
+ break;
+ }
+
+ return (res);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t * info, volatile unsigned long *addr,
+ ulong data)
+{
+ int flag, res = 0;
+ ulong start;
+
+ /* Check if Flash is (sufficiently) erased
+ */
+ if ((*addr & data) != data)
+ return (2);
+
+ /* Disable interrupts which might cause a timeout here
+ */
+ flag = disable_interrupts ();
+
+ *addr = 0x00400040;
+ *addr = data;
+
+ /* re-enable interrupts if necessary
+ */
+ if (flag)
+ enable_interrupts ();
+
+ start = get_timer (0);
+ while ((*addr & 0x00800080) != 0x00800080) {
+ if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+ /* Suspend program
+ */
+ *addr = 0x00B000B0;
+ res = 1;
+ goto OUT;
+ }
+ }
+
+ if (*addr & 0x00220022) {
+ printf ("*** ERROR: program failed!\n");
+ res = 1;
+ }
+
+OUT:
+ /* Clear status register and reset to read mode
+ */
+ *addr = 0x00500050;
+ *addr = 0x00FF00FF;
+
+ return (res);
+}
diff --git a/board/sacsng/flash.c b/board/sacsng/flash.c
new file mode 100644
index 0000000..4fd04df
--- /dev/null
+++ b/board/sacsng/flash.c
@@ -0,0 +1,523 @@
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <configs/sacsng.h>
+
+
+#undef DEBUG
+
+#ifndef CFG_ENV_ADDR
+#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
+#endif
+#ifndef CFG_ENV_SIZE
+#define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
+#endif
+
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_short *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ unsigned long size_b0, size_b1;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ size_b0 = flash_get_size((vu_short *)CFG_FLASH0_BASE, &flash_info[0]);
+
+ if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+ size_b0, size_b0<<20);
+ }
+
+ size_b1 = flash_get_size((vu_short *)CFG_FLASH1_BASE, &flash_info[1]);
+
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+ &flash_info[0]);
+#endif
+
+#ifdef CFG_ENV_IS_IN_FLASH
+ /* ENV protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+ &flash_info[0]);
+#endif
+
+ if (size_b1) {
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+ &flash_info[1]);
+#endif
+
+#ifdef CFG_ENV_IS_IN_FLASH
+ /* ENV protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+ &flash_info[1]);
+#endif
+ } else {
+ flash_info[1].flash_id = FLASH_UNKNOWN;
+ flash_info[1].sector_count = -1;
+ }
+
+ flash_info[0].size = size_b0;
+ flash_info[1].size = size_b1;
+
+ /*
+ * We only report the primary flash for U-Boot's use.
+ */
+ return (size_b0);
+}
+
+/*-----------------------------------------------------------------------
+ */
+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 & FLASH_VENDMASK) {
+ case FLASH_MAN_AMD: printf ("AMD "); break;
+ case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
+ default: printf ("Unknown Vendor "); break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\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!
+ */
+
+static ulong flash_get_size (vu_short *addr, flash_info_t *info)
+{
+ short i;
+ ushort value;
+ ulong base = (ulong)addr;
+
+ /* Write auto select command: read Manufacturer ID */
+ addr[0x0555] = 0xAAAA;
+ addr[0x02AA] = 0x5555;
+ addr[0x0555] = 0x9090;
+ __asm__ __volatile__(" sync\n ");
+
+ value = addr[0];
+#ifdef DEBUG
+ printf("Flash manufacturer 0x%04X\n", value);
+#endif
+
+ if(value == (ushort)AMD_MANUFACT) {
+ info->flash_id = FLASH_MAN_AMD;
+ } else if (value == (ushort)FUJ_MANUFACT) {
+ info->flash_id = FLASH_MAN_FUJ;
+ } else {
+#ifdef DEBUG
+ printf("Unknown flash manufacturer 0x%04X\n", value);
+#endif
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ return (0); /* no or unknown flash */
+ }
+
+ value = addr[1]; /* device ID */
+#ifdef DEBUG
+ printf("Flash type 0x%04X\n", value);
+#endif
+
+ if(value == (ushort)AMD_ID_LV400T) {
+ info->flash_id += FLASH_AM400T;
+ info->sector_count = 11;
+ info->size = 0x00080000; /* => 0.5 MB */
+ } else if(value == (ushort)AMD_ID_LV400B) {
+ info->flash_id += FLASH_AM400B;
+ info->sector_count = 11;
+ info->size = 0x00080000; /* => 0.5 MB */
+ } else if(value == (ushort)AMD_ID_LV800T) {
+ info->flash_id += FLASH_AM800T;
+ info->sector_count = 19;
+ info->size = 0x00100000; /* => 1 MB */
+ } else if(value == (ushort)AMD_ID_LV800B) {
+ info->flash_id += FLASH_AM800B;
+ info->sector_count = 19;
+ info->size = 0x00100000; /* => 1 MB */
+ } else if(value == (ushort)AMD_ID_LV160T) {
+ info->flash_id += FLASH_AM160T;
+ info->sector_count = 35;
+ info->size = 0x00200000; /* => 2 MB */
+ } else if(value == (ushort)AMD_ID_LV160B) {
+ info->flash_id += FLASH_AM160B;
+ info->sector_count = 35;
+ info->size = 0x00200000; /* => 2 MB */
+ } else if(value == (ushort)AMD_ID_LV320T) {
+ info->flash_id += FLASH_AM320T;
+ info->sector_count = 67;
+ info->size = 0x00400000; /* => 4 MB */
+ } else if(value == (ushort)AMD_ID_LV320B) {
+ info->flash_id += FLASH_AM320B;
+ info->sector_count = 67;
+ info->size = 0x00400000; /* => 4 MB */
+ } else {
+#ifdef DEBUG
+ printf("Unknown flash type 0x%04X\n", value);
+ info->size = CFG_FLASH_SIZE;
+#else
+ info->flash_id = FLASH_UNKNOWN;
+ return (0); /* => no or unknown flash */
+#endif
+ }
+
+ /* set up sector start address table */
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] = base + ((i - 3) * 0x00010000);
+ }
+ } else {
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00004000;
+ info->start[i--] = base + info->size - 0x00006000;
+ info->start[i--] = base + info->size - 0x00008000;
+ for (; i >= 0; i--) {
+ info->start[i] = base + (i * 0x00010000);
+ }
+ }
+
+ /* check for protected sectors */
+ for (i = 0; i < info->sector_count; i++) {
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+ /* D0 = 1 if protected */
+ addr = (volatile unsigned short *)(info->start[i]);
+ info->protect[i] = addr[2] & 1;
+ }
+
+ /*
+ * Prevent writes to uninitialized FLASH.
+ */
+ if (info->flash_id != FLASH_UNKNOWN) {
+ addr = (volatile unsigned short *)info->start[0];
+
+ }
+
+ addr[0] = 0xF0F0; /* reset bank */
+ __asm__ __volatile__(" sync\n ");
+ return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ vu_short *addr = (vu_short*)(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;
+ }
+
+ if ((info->flash_id == FLASH_UNKNOWN) ||
+ (info->flash_id > FLASH_AMD_COMP)) {
+ printf ("Can't erase unknown flash type %08lx - aborted\n",
+ info->flash_id);
+ 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] = 0xAAAA;
+ addr[0x02AA] = 0x5555;
+ addr[0x0555] = 0x8080;
+ addr[0x0555] = 0xAAAA;
+ addr[0x02AA] = 0x5555;
+ __asm__ __volatile__(" sync\n ");
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr = (vu_short*)(info->start[sect]);
+ addr[0] = 0x3030;
+ 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_short*)(info->start[l_sect]);
+ while ((addr[0] & 0x0080) != 0x0080) {
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ addr[0] = 0xF0F0; /* reset bank */
+ __asm__ __volatile__(" sync\n ");
+ return 1;
+ }
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ putc ('.');
+ last = now;
+ }
+ }
+
+DONE:
+ /* reset to read mode */
+ addr = (vu_short*)info->start[0];
+ addr[0] = 0xF0F0; /* reset bank */
+ __asm__ __volatile__(" sync\n ");
+
+ printf (" done\n");
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * 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)
+{
+ vu_short *addr = (vu_short*)(info->start[0]);
+ ulong start;
+ int flag;
+ int j;
+
+ /* 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();
+
+ /* The original routine was designed to write 32 bit words to
+ * 32 bit wide memory. We have 16 bit wide memory so we do
+ * two writes. We write the LSB first at dest+2 and then the
+ * MSB at dest (lousy big endian).
+ */
+ dest += 2;
+ for(j = 0; j < 2; j++) {
+ addr[0x0555] = 0xAAAA;
+ addr[0x02AA] = 0x5555;
+ addr[0x0555] = 0xA0A0;
+ __asm__ __volatile__(" sync\n ");
+
+ *((vu_short *)dest) = (ushort)data;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while (*(vu_short *)dest != (ushort)data) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ return (1);
+ }
+ }
+ dest -= 2;
+ data >>= 16;
+ }
+ return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/sandpoint/README b/board/sandpoint/README
new file mode 100644
index 0000000..9e48168
--- /dev/null
+++ b/board/sandpoint/README
@@ -0,0 +1,15 @@
+This port of U-Boot will run on a Motorola Sandpoint 3 development
+system equipped with a Unity X4 PPMC card (MPC8240 CPU) only. It is a
+snapshot of work in progress and far from being completed. In order
+to run it on the target system, it has to be downloaded using the
+DINK32 monitor program that came with your Sandpoint system. Please
+note that DINK32 does not accept the S-Record file created by the
+U-Boot build process unmodified, because it contains CR/LF line
+terminators. You have to strip the CR characters first. There is a
+tiny script named 'dinkdl' I created for this purpose.
+
+The Sandpoint port is based on the work of Rob Taylor, who does not
+seem to maintain it any more. I can be reached by mail as
+tkoeller@gmx.net.
+
+Thomas Koeller