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-rw-r--r--board/oxc/oxc.c237
1 files changed, 237 insertions, 0 deletions
diff --git a/board/oxc/oxc.c b/board/oxc/oxc.c
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+++ b/board/oxc/oxc.c
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+/*
+ * (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);
+}