Initial revision

1 files changed, 237 insertions, 0 deletions

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);
+}