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authorwdenk <wdenk>2002-11-03 00:24:07 +0000
committerwdenk <wdenk>2002-11-03 00:24:07 +0000
commitc609719b8d1b2dca590e0ed499016d041203e403 (patch)
tree7ea1755d80903ff972f312a249eb856061d40e15 /board/oxc
parent5b1d713721c3ea02549940133f09236783dda1f9 (diff)
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Initial revision
Diffstat (limited to 'board/oxc')
-rw-r--r--board/oxc/flash.c372
-rw-r--r--board/oxc/oxc.c237
2 files changed, 609 insertions, 0 deletions
diff --git a/board/oxc/flash.c b/board/oxc/flash.c
new file mode 100644
index 0000000..4f0220e
--- /dev/null
+++ b/board/oxc/flash.c
@@ -0,0 +1,372 @@
+/*
+ * (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.
+ *
+ * Flash Routines for STM29W320DB/STM29W800D flash chips
+ *
+ *--------------------------------------------------------------------
+ * 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]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+
+static ulong flash_get_size (vu_char *addr, flash_info_t *info);
+static int write_byte (flash_info_t *info, ulong dest, uchar data);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ unsigned long size;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ /*
+ * We use the following trick here: since flash is cyclically
+ * mapped in the 0xFF800000-0xFFFFFFFF area, we detect the type
+ * and the size of flash using 0xFF800000 as the base address,
+ * and then call flash_get_size() again to fill flash_info.
+ */
+ size = flash_get_size((vu_char *)CFG_FLASH_PRELIMBASE, &flash_info[0]);
+ if (size)
+ {
+ flash_get_size((vu_char *)(-size), &flash_info[0]);
+ }
+
+#if (CFG_MONITOR_BASE >= CFG_FLASH_PRELIMBASE)
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+ &flash_info[0]);
+#endif
+
+#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
+# ifndef CFG_ENV_SIZE
+# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
+# endif
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+ &flash_info[0]);
+#endif
+
+ return (size);
+}
+
+/*-----------------------------------------------------------------------
+ */
+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_STM:
+ printf ("ST ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_STM320DB:
+ printf ("M29W320DB (32 Mbit)\n");
+ break;
+ case FLASH_STM800DB:
+ printf ("M29W800DB (8 Mbit, bottom boot block)\n");
+ break;
+ case FLASH_STM800DT:
+ printf ("M29W800DT (8 Mbit, top boot block)\n");
+ break;
+ default:
+ printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ 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) {
+ 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_char *addr, flash_info_t *info)
+{
+ short i;
+ uchar vendor, devid;
+ ulong base = (ulong)addr;
+
+ /* Write auto select command: read Manufacturer ID */
+ addr[0x0AAA] = 0xAA;
+ addr[0x0555] = 0x55;
+ addr[0x0AAA] = 0x90;
+
+ udelay(1000);
+
+ vendor = addr[0];
+ devid = addr[2];
+
+ /* only support STM */
+ if ((vendor << 16) != FLASH_MAN_STM) {
+ return 0;
+ }
+
+ if (devid == FLASH_STM320DB) {
+ /* MPC8240 can address maximum 2Mb of flash, that is why the MSB
+ * lead is grounded and we can access only 2 first Mb */
+ info->flash_id = vendor << 16 | devid;
+ info->sector_count = 32;
+ info->size = info->sector_count * 0x10000;
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base + i * 0x10000;
+ }
+ }
+ else if (devid == FLASH_STM800DB) {
+ info->flash_id = vendor << 16 | devid;
+ info->sector_count = 19;
+ info->size = 0x100000;
+ info->start[0] = 0x0000;
+ info->start[1] = 0x4000;
+ info->start[2] = 0x6000;
+ info->start[3] = 0x8000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] = base + (i-3) * 0x10000;
+ }
+ }
+ else if (devid == FLASH_STM800DT) {
+ info->flash_id = vendor << 16 | devid;
+ info->sector_count = 19;
+ info->size = 0x100000;
+ for (i = 0; i < info->sector_count-4; i++) {
+ info->start[i] = base + i * 0x10000;
+ }
+ info->start[i] = base + i * 0x10000;
+ info->start[i+1] = base + i * 0x10000 + 0x8000;
+ info->start[i+2] = base + i * 0x10000 + 0xa000;
+ info->start[i+3] = base + i * 0x10000 + 0xc000;
+ }
+ else {
+ return 0;
+ }
+
+ /* mark all sectors as unprotected */
+ for (i = 0; i < info->sector_count; i++) {
+ info->protect[i] = 0;
+ }
+
+ /* Issue the reset command */
+ if (info->flash_id != FLASH_UNKNOWN) {
+ addr[0] = 0xF0; /* reset bank */
+ }
+
+ return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+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");
+ }
+
+ l_sect = -1;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr[0x0AAA] = 0xAA;
+ addr[0x0555] = 0x55;
+ addr[0x0AAA] = 0x80;
+ addr[0x0AAA] = 0xAA;
+ addr[0x0555] = 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 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;
+ }
+ }
+
+ DONE:
+ /* reset to read mode */
+ addr = (volatile unsigned char *)info->start[0];
+ addr[0] = 0xF0; /* reset bank */
+
+ 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)
+{
+ int rc;
+
+ while (cnt > 0) {
+ if ((rc = write_byte(info, addr, *src)) != 0) {
+ return (rc);
+ }
+ addr++;
+ src++;
+ cnt--;
+ }
+
+ return (0);
+}
+
+/*-----------------------------------------------------------------------
+ * 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[0x0AAA] = 0xAA;
+ addr[0x0555] = 0x55;
+ addr[0x0AAA] = 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/oxc/oxc.c b/board/oxc/oxc.c
new file mode 100644
index 0000000..8aced84
--- /dev/null
+++ b/board/oxc/oxc.c
@@ -0,0 +1,237 @@
+/*
+ * (C) Copyright 2000
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
+ *
+ * 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 <mpc824x.h>
+#include <pci.h>
+#include <i2c.h>
+
+int checkboard (void)
+{
+ puts ( "Board: OXC8240\n" );
+ return 0;
+}
+
+long int initdram (int board_type)
+{
+#ifndef CFG_RAMBOOT
+ int i, cnt;
+ volatile uchar * base= CFG_SDRAM_BASE;
+ volatile ulong * addr;
+ ulong save[32];
+ ulong val, ret = 0;
+
+ for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *)base + cnt;
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *)base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if (*addr != 0) {
+ *addr = save[i];
+ goto Done;
+ }
+
+ for (cnt = 1; cnt <= CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1) {
+ addr = (volatile ulong *)base + cnt;
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ ulong new_bank0_end = cnt * sizeof(long) - 1;
+ ulong mear1 = mpc824x_mpc107_getreg(MEAR1);
+ ulong emear1 = mpc824x_mpc107_getreg(EMEAR1);
+ mear1 = (mear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
+ emear1 = (emear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
+ mpc824x_mpc107_setreg(MEAR1, mear1);
+ mpc824x_mpc107_setreg(EMEAR1, emear1);
+
+ ret = cnt * sizeof(long);
+ goto Done;
+ }
+ }
+
+ ret = CFG_MAX_RAM_SIZE;
+Done:
+ return ret;
+#else
+ /* if U-Boot starts from RAM, then suppose we have 16Mb of RAM */
+ return (16 << 20);
+#endif
+}
+
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_oxc_config_table[] = {
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x14, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
+ PCI_ENET0_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x15, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCI_ENET1_IOADDR,
+ PCI_ENET1_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
+ { }
+};
+#endif
+
+static struct pci_controller hose = {
+#ifndef CONFIG_PCI_PNP
+ config_table: pci_oxc_config_table,
+#endif
+};
+
+void pci_init (void)
+{
+ pci_mpc824x_init(&hose);
+}
+
+int board_pre_init (void)
+{
+ *(volatile unsigned char *)(CFG_CPLD_RESET) = 0x89;
+ return 0;
+}
+
+#ifdef CONFIG_WATCHDOG
+void oxc_wdt_reset(void)
+{
+ *(volatile unsigned char *)(CFG_CPLD_WATCHDOG) = 0xff;
+}
+
+void watchdog_reset(void)
+{
+ int re_enable = disable_interrupts();
+
+ oxc_wdt_reset();
+ if (re_enable)
+ enable_interrupts();
+}
+#endif
+
+static int oxc_get_expander(unsigned char addr, unsigned char * val)
+{
+ return i2c_read(addr, 0, 0, val, 1);
+}
+
+static int oxc_set_expander(unsigned char addr, unsigned char val)
+{
+ return i2c_write(addr, 0, 0, &val, 1);
+}
+
+static int expander0alive = 0;
+
+#ifdef CONFIG_SHOW_ACTIVITY
+static int ledtoggle = 0;
+static int ledstatus = 1;
+
+void oxc_toggle_activeled(void)
+{
+ ledtoggle++;
+}
+
+void show_activity(int arg)
+{
+ static unsigned char led = 0;
+ unsigned char val;
+
+ if (!expander0alive) return;
+
+ if ((ledtoggle > (2 * arg)) && ledstatus) {
+ led ^= 0x80;
+ oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val);
+ udelay(200);
+ oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, (val & 0x7F) | led);
+ ledtoggle = 0;
+ }
+}
+#endif
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+void show_boot_progress(int arg)
+{
+ unsigned char val;
+
+ if (!expander0alive) return;
+
+ if (arg > 0 && ledstatus) {
+ ledstatus = 0;
+ oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val);
+ udelay(200);
+ oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, val | 0x80);
+ } else if (arg < 0) {
+ oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val);
+ udelay(200);
+ oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, val & 0x7F);
+ ledstatus = 1;
+ }
+}
+#endif
+
+int misc_init_r (void)
+{
+ /* check whether the i2c expander #0 is accessible */
+ if (!oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, 0x7F)) {
+ udelay(200);
+ expander0alive = 1;
+ }
+
+#ifdef CFG_OXC_GENERATE_IP
+ {
+ DECLARE_GLOBAL_DATA_PTR;
+
+ char str[32];
+ unsigned long ip = CFG_OXC_IPMASK;
+ bd_t *bd = gd->bd;
+
+ if (expander0alive) {
+ unsigned char val;
+
+ if (!oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val)) {
+ ip = (ip & 0xffffff00) | ((val & 0x7c) >> 2);
+ }
+ }
+
+ if ((ip & 0xff) < 3) {
+ /* if fail, set x.x.x.254 */
+ ip = (ip & 0xffffff00) | 0xfe;
+ }
+
+ bd->bi_ip_addr = ip;
+ sprintf(str, "%ld.%ld.%ld.%ld",
+ (bd->bi_ip_addr & 0xff000000) >> 24,
+ (bd->bi_ip_addr & 0x00ff0000) >> 16,
+ (bd->bi_ip_addr & 0x0000ff00) >> 8,
+ (bd->bi_ip_addr & 0x000000ff));
+ setenv("ipaddr", str);
+ printf("ip: %s\n", str);
+ }
+#endif
+ return (0);
+}