Initial revision

3 files changed, 615 insertions, 0 deletions

diff --git a/board/pn62/cmd_pn62.c b/board/pn62/cmd_pn62.c
new file mode 100644
index 0000000..928f6c0
--- /dev/null
+++ b/board/pn62/cmd_pn62.c
@@ -0,0 +1,164 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Grandegger, DENX Software Engineering, wg@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 <malloc.h>
+#include <net.h>
+#include <asm/io.h>
+#include <pci.h>
+#include <cmd_autoscript.h>
+#include <cmd_bsp.h>
+
+#include "pn62.h"
+
+#if (CONFIG_COMMANDS & CFG_CMD_BSP)
+
+extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
+
+/*
+ * Command led: controls the various LEDs 0..11 on the PN62 card.
+ */
+int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+    unsigned int number, function;
+
+    if (argc != 3) {
+	printf ("Usage:\n%s\n", cmdtp->usage);
+	return 1;
+    }
+    number = simple_strtoul(argv[1], NULL, 10);
+    if (number > PN62_LED_MAX)
+	return 1;
+    function = simple_strtoul(argv[2], NULL, 16);
+    set_led (number, function);
+    return 0;
+}
+
+/*
+ * Command loadpci: loads a image over PCI.
+ */
+#define CMD_MOVE_WINDOW 0x1
+#define CMD_BOOT_IMAGE  0x2
+
+int do_loadpci (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+    char *s;
+    ulong addr = 0, count = 0;
+    u32 off;
+    int cmd, rcode = 0;
+
+    /* pre-set load_addr */
+    if ((s = getenv("loadaddr")) != NULL) {
+	addr = simple_strtoul(s, NULL, 16);
+    }
+
+    switch (argc) {
+    case 1:
+	break;
+    case 2:
+	addr = simple_strtoul(argv[1], NULL, 16);
+	break;
+    default:
+       printf ("Usage:\n%s\n", cmdtp->usage);
+	return 1;
+    }
+
+    printf ("## Ready for image download ...\n");
+
+    show_startup_phase(12);
+
+    while (1) {
+	/* Alive indicator */
+	i2155x_write_scrapad(BOOT_PROTO, BOOT_PROTO_READY);
+
+	/* Toggle status LEDs */
+	cmd = (count / 200) % 4; /* downscale */
+	set_led(4, cmd == 0 ? LED_1 : LED_0);
+	set_led(5, cmd == 1 ? LED_1 : LED_0);
+	set_led(6, cmd == 2 ? LED_1 : LED_0);
+	set_led(7, cmd == 3 ? LED_1 : LED_0);
+	udelay(1000);
+	count++;
+
+	cmd = i2155x_read_scrapad(BOOT_CMD);
+
+	if (cmd == BOOT_CMD_MOVE) {
+	    off = i2155x_read_scrapad(BOOT_DATA);
+	    off += addr;
+	    i2155x_set_bar_base(3, off);
+	    printf ("## BAR3 Addr moved = 0x%08x\n", off);
+	    i2155x_write_scrapad(BOOT_CMD, ~cmd);
+	    show_startup_phase(13);
+	}
+	else if (cmd == BOOT_CMD_BOOT) {
+	    set_led(4, LED_1);
+	    set_led(5, LED_1);
+	    set_led(6, LED_1);
+	    set_led(7, LED_1);
+
+	    i2155x_write_scrapad(BOOT_CMD, ~cmd);
+	    show_startup_phase(14);
+	    break;
+	}
+
+	/* Abort if ctrl-c was pressed */
+	if (ctrlc()) {
+	    printf("\nAbort\n");
+	    return 0;
+	}
+
+    }
+
+    /* Repoint to the default shared memory */
+    i2155x_set_bar_base(3, PN62_SMEM_DEFAULT);
+
+    load_addr = addr;
+    printf ("## Start Addr      = 0x%08lx\n", addr);
+
+    show_startup_phase(15);
+
+    /* Loading ok, check if we should attempt an auto-start */
+    if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
+	char *local_args[2];
+	local_args[0] = argv[0];
+	local_args[1] = NULL;
+
+	printf ("Automatic boot of image at addr 0x%08lX ...\n",
+		load_addr);
+	rcode = do_bootm (cmdtp, 0, 1, local_args);
+    }
+
+#ifdef CONFIG_AUTOSCRIPT
+    if (load_addr) {
+	char *s;
+
+	if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
+	    printf("Running autoscript at addr 0x%08lX ...\n", load_addr);
+	    rcode = autoscript (bd, load_addr);
+	}
+    }
+#endif
+    return rcode;
+}
+
+#endif
diff --git a/board/pn62/misc.c b/board/pn62/misc.c
new file mode 100644
index 0000000..4f71950
--- /dev/null
+++ b/board/pn62/misc.c
@@ -0,0 +1,235 @@
+/*
+ * (C) Copyright 2002 Wolfgang Grandegger <wg@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 <mpc824x.h>
+#include <asm/io.h>
+#include <pci.h>
+
+#include "pn62.h"
+
+typedef struct {
+    pci_dev_t    devno;
+    volatile u32 *csr;
+
+} i2155x_t;
+
+static i2155x_t i2155x = { 0, NULL };
+
+static struct pci_device_id i2155x_ids[] = {
+    { 0x1011, 0x0046 },		/* i21554 */
+    { 0x8086, 0xb555 }		/* i21555 */
+};
+
+int i2155x_init(void)
+{
+    pci_dev_t devno;
+    u32 val;
+    int i;
+
+    /*
+     * Find the Intel bridge.
+     */
+    if ((devno = pci_find_devices(i2155x_ids, 0)) < 0) {
+	printf("Error: Intel bridge 2155x not found!\n");
+	return -1;
+    }
+    i2155x.devno = devno;
+
+    /*
+     * Get auto-configured base address for CSR access.
+     */
+    pci_read_config_dword(devno, PCI_BASE_ADDRESS_1, &val);
+    if (val & PCI_BASE_ADDRESS_SPACE_IO) {
+	val &= PCI_BASE_ADDRESS_IO_MASK;
+	i2155x.csr = (volatile u32 *)(_IO_BASE + val);
+    } else {
+	val &= PCI_BASE_ADDRESS_MEM_MASK;
+	i2155x.csr =  (volatile u32 *)val;
+    }
+
+    /*
+     * Translate downstream memory 2 (bar3) to base of shared memory.
+     */
+    i2155x_set_bar_base(3, PN62_SMEM_DEFAULT);
+
+    /*
+     * Enable memory space, I/O space and bus master bits
+     * in both Primary and Secondary command registers.
+     */
+    val = PCI_COMMAND_MEMORY|PCI_COMMAND_MASTER|PCI_COMMAND_IO;
+    pci_write_config_word(devno, 0x44, val);
+    pci_write_config_word(devno, 0x04, val);
+
+    /*
+     * Clear scratchpad registers.
+     */
+    for (i = 0; i < (I2155X_SCRAPAD_MAX - 1); i++) {
+	i2155x_write_scrapad(i, 0x0);
+    }
+
+    /*
+     * Set interrupt line for Linux.
+     */
+    pci_write_config_byte(devno, PCI_INTERRUPT_LINE, 3);
+
+    return 0;
+}
+
+/*
+ * Access the Scratchpad registers 0..7 of the Intel bridge.
+ */
+void i2155x_write_scrapad(int idx, u32 val)
+{
+    if (idx >= 0 && idx < I2155X_SCRAPAD_MAX)
+	out_le32(i2155x.csr + (I2155X_SCRAPAD_ADDR/4) + idx, val);
+    else
+	printf("i2155x_write_scrapad: invalid index\n");
+}
+
+u32 i2155x_read_scrapad(int idx)
+{
+    if (idx >= 0 && idx < I2155X_SCRAPAD_MAX)
+	return in_le32(i2155x.csr + (I2155X_SCRAPAD_ADDR/4) + idx);
+    else
+	printf("i2155x_read_scrapad: invalid index\n");
+    return -1;
+}
+
+void i2155x_set_bar_base(int bar, u32 base)
+{
+    if (bar >= 2 && bar <= 4) {
+	pci_write_config_dword(i2155x.devno,
+			       I2155X_BAR2_BASE + (bar - 2) * 4,
+			       base);
+    }
+}
+
+/*
+ * Read Vital Product Data (VPD) from the Serial EPROM attached
+ * to the Intel bridge.
+ */
+int i2155x_read_vpd(int offset, int size, unsigned char *data)
+{
+    int i, n;
+    u16 val16;
+
+    for (i = 0; i < size; i++) {
+	pci_write_config_word(i2155x.devno, I2155X_VPD_ADDR,
+			      offset + i - I2155X_VPD_START);
+	for (n = 10000; n > 0; n--) {
+	    pci_read_config_word(i2155x.devno, I2155X_VPD_ADDR, &val16);
+	    if ((val16 & 0x8000) != 0) /* wait for completion */
+		break;
+	    udelay(100);
+	}
+	if (n == 0) {
+	    printf("i2155x_read_vpd: TIMEOUT\n");
+	    return -1;
+	}
+
+	pci_read_config_byte(i2155x.devno, I2155X_VPD_DATA, &data[i]);
+    }
+
+    return i;
+}
+
+static struct pci_device_id am79c95x_ids [] = {
+        { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE },
+        { }
+};
+
+
+/*
+ * Initialize the AMD ethernet controllers.
+ */
+int am79c95x_init(void)
+{
+    pci_dev_t devno;
+    int i;
+
+    /*
+     * Set interrupt line for Linux.
+     */
+    for (i = 0; i < 2; i++) {
+	if ((devno = pci_find_devices(am79c95x_ids, i)) < 0)
+	    break;
+	pci_write_config_byte(devno, PCI_INTERRUPT_LINE, 2+i);
+    }
+    if (i < 2)
+	printf("Error: Only %d AMD Ethernet Controller found!\n", i);
+
+    return 0;
+}
+
+
+void set_led(unsigned int number, unsigned int function)
+{
+    volatile u8 *addr;
+
+    if ((number >= 0) && (number < PN62_LED_MAX) &&
+	(function >= 0) && (function <= LED_LAST_FUNCTION)) {
+	addr = (volatile u8 *)(PN62_LED_BASE + number * 8);
+	out_8(addr, function&0xff);
+    }
+}
+
+/*
+ * Show fatal error indicated by Kinght Rider(tm) effect
+ * in LEDS 0-7. LEDS 8-11 contain 4 bit error code.
+ * Note: this function will not terminate.
+ */
+void fatal_error(unsigned int error_code)
+{
+    int i, d;
+
+    for (i = 0; i < 12; i++) {
+	set_led(i, LED_0);
+    }
+
+    /*
+     * Write error code.
+     */
+    set_led(8,  (error_code & 0x01) ? LED_1 : LED_0);
+    set_led(9,  (error_code & 0x02) ? LED_1 : LED_0);
+    set_led(10, (error_code & 0x04) ? LED_1 : LED_0);
+    set_led(11, (error_code & 0x08) ? LED_1 : LED_0);
+
+    /*
+     * Yay - Knight Rider effect!
+     */
+    while(1) {
+	unsigned int delay = 2000;
+
+	for (i = 0; i < 8; i++) {
+	    set_led(i, LED_1);
+	    for (d = 0; d < delay; d++);
+	    set_led(i, LED_0);
+	}
+
+	for (i = 7; i > 0; i--) {
+	    set_led(i, LED_1);
+	    for (d = 0; d < delay; d++);
+	    set_led(i, LED_0);
+	}
+    }
+}
diff --git a/board/pn62/pn62.c b/board/pn62/pn62.c
new file mode 100644
index 0000000..4d87527
--- /dev/null
+++ b/board/pn62/pn62.c
@@ -0,0 +1,216 @@
+/*
+ * (C) Copyright 2002 Wolfgang Grandegger <wg@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 <mpc824x.h>
+#include <pci.h>
+
+#include "pn62.h"
+
+
+static int get_serial_number (char *string, int size);
+static int get_mac_address (int id, u8 * mac, char *string, int size);
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+void show_boot_progress (int phase)
+{
+	/*
+	 * Show phases of the bootm command on the front panel
+	 * LEDs and the scratchpad register #3 as well. We use
+	 * blinking LEDs for logical "1".
+	 */
+	if (phase > 0) {
+		set_led (8, (phase & 0x1) ? LED_SLOW_CLOCK : LED_0);
+		set_led (9, (phase & 0x2) ? LED_SLOW_CLOCK : LED_0);
+		set_led (10, (phase & 0x4) ? LED_SLOW_CLOCK : LED_0);
+		set_led (11, (phase & 0x8) ? LED_SLOW_CLOCK : LED_0);
+	}
+	i2155x_write_scrapad (BOOT_STATUS, phase);
+	if (phase < 0)
+		i2155x_write_scrapad (BOOT_DONE, BOOT_DONE_ERROR);
+}
+#endif
+
+void show_startup_phase (int phase)
+{
+	/*
+	 * Show the phase of U-Boot startup on the front panel
+	 * LEDs and the scratchpad register #3 as well.
+	 */
+	if (phase > 0) {
+		set_led (8, (phase & 0x1) ? LED_1 : LED_0);
+		set_led (9, (phase & 0x2) ? LED_1 : LED_0);
+		set_led (10, (phase & 0x4) ? LED_1 : LED_0);
+		set_led (11, (phase & 0x8) ? LED_1 : LED_0);
+	}
+	i2155x_write_scrapad (BOOT_STATUS, phase);
+	if (phase < 0)
+		i2155x_write_scrapad (BOOT_DONE, BOOT_DONE_ERROR);
+}
+
+int checkboard (void)
+{
+	show_startup_phase (1);
+	puts ("Board: PN62\n");
+	return 0;
+}
+
+long int initdram (int board_type)
+{
+	int i, cnt;
+	volatile uchar *base = CFG_SDRAM_BASE;
+	volatile ulong *addr;
+	ulong save[32];
+	ulong val, ret = 0;
+
+	show_startup_phase (2);
+
+	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:
+	show_startup_phase (3);
+	return ret;
+}
+
+/*
+ * Initialize PCI Devices. We rely on auto-configuration.
+ */
+#ifndef CONFIG_PCI_PNP
+#error "CONFIG_PCI_PNP is not defined, please correct!"
+#endif
+
+struct pci_controller hose = {
+};
+
+void pci_init (void)
+{
+	show_startup_phase (4);
+	pci_mpc824x_init (&hose);
+
+	show_startup_phase (5);
+	i2155x_init ();
+	show_startup_phase (6);
+	am79c95x_init ();
+	show_startup_phase (7);
+}
+
+int misc_init_r (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	char str[20];
+	u8 mac[6];
+
+	show_startup_phase (8);
+	/*
+	 * Get serial number and ethernet addresses if not already defined
+	 * and update the board info structure and the environment.
+	 */
+	if (getenv ("serial#") == NULL &&
+		get_serial_number (str, strlen (str)) > 0) {
+		setenv ("serial#", str);
+	}
+	show_startup_phase (9);
+
+	if (getenv ("ethaddr") == NULL &&
+		get_mac_address (0, mac, str, sizeof (str)) > 0) {
+		setenv ("ethaddr", str);
+		memcpy (gd->bd->bi_enetaddr, mac, 6);
+	}
+	show_startup_phase (10);
+
+	if (getenv ("eth1addr") == NULL &&
+		get_mac_address (1, mac, str, sizeof (str)) > 0) {
+		setenv ("eth1addr", str);
+		memcpy (gd->bd->bi_enet1addr, mac, 6);
+	}
+	show_startup_phase (11);
+
+	/* Tell everybody that U-Boot is up and runnig */
+	i2155x_write_scrapad (0, 0x12345678);
+	return (0);
+}
+
+static int get_serial_number (char *string, int size)
+{
+	int i;
+	char c;
+
+	if (size < I2155X_VPD_SN_SIZE)
+		size = I2155X_VPD_SN_SIZE;
+	for (i = 0; i < (size - 1); i++) {
+		i2155x_read_vpd (I2155X_VPD_SN_START + i, 1, &c);
+		if (c == '\0')
+			break;
+		string[i] = c;
+	}
+	string[i] = '\0';			/* make sure it's terminated */
+
+	return i;
+}
+
+static int get_mac_address (int id, u8 * mac, char *string, int size)
+{
+	if (size < 6 * 3)
+		return -1;
+
+	i2155x_read_vpd (I2155X_VPD_MAC0_START + 6 * id, 6, mac);
+	return sprintf (string, "%02x:%02x:%02x:%02x:%02x:%02x",
+				mac[0], mac[1], mac[2],
+				mac[3], mac[4], mac[5]);
+}