Merge with /home/stefan/git/u-boot/u-boot-ppc4xx

1 files changed, 256 insertions, 0 deletions

diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
new file mode 100644
index 0000000..7bc663b
--- /dev/null
+++ b/board/freescale/common/sys_eeprom.c
@@ -0,0 +1,256 @@
+/*
+ * Copyright 2006 Freescale Semiconductor
+ * York Sun (yorksun@freescale.com)
+ * Haiying Wang (haiying.wang@freescale.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 <command.h>
+#include <i2c.h>
+#include <linux/ctype.h>
+
+#ifdef CFG_ID_EEPROM
+typedef struct {
+	unsigned char id[4];		/* 0x0000 - 0x0003 */
+	unsigned char sn[12];		/* 0x0004 - 0x000F */
+	unsigned char errata[5];	/* 0x0010 - 0x0014 */
+	unsigned char date[7];		/* 0x0015 - 0x001a */
+	unsigned char res_1[37];	/* 0x001b - 0x003f */
+	unsigned char tab_size;		/* 0x0040 */
+	unsigned char tab_flag;		/* 0x0041 */
+	unsigned char mac[8][6];	/* 0x0042 - 0x0071 */
+	unsigned char res_2[126];	/* 0x0072 - 0x00ef */
+	unsigned int crc;		/* 0x00f0 - 0x00f3 crc32 checksum */
+} EEPROM_data;
+
+static EEPROM_data mac_data;
+
+int mac_show(void)
+{
+	int i;
+	unsigned char ethaddr[8][18];
+
+	printf("ID %c%c%c%c\n",
+	       mac_data.id[0],
+	       mac_data.id[1],
+	       mac_data.id[2],
+	       mac_data.id[3]);
+	printf("Errata %c%c%c%c%c\n",
+	       mac_data.errata[0],
+	       mac_data.errata[1],
+	       mac_data.errata[2],
+	       mac_data.errata[3],
+	       mac_data.errata[4]);
+	printf("Date %c%c%c%c%c%c%c\n",
+	       mac_data.date[0],
+	       mac_data.date[1],
+	       mac_data.date[2],
+	       mac_data.date[3],
+	       mac_data.date[4],
+	       mac_data.date[5],
+	       mac_data.date[6]);
+	for (i = 0; i < 8; i++) {
+		sprintf((char *)ethaddr[i],
+			"%02x:%02x:%02x:%02x:%02x:%02x",
+			mac_data.mac[i][0],
+			mac_data.mac[i][1],
+			mac_data.mac[i][2],
+			mac_data.mac[i][3],
+			mac_data.mac[i][4],
+			mac_data.mac[i][5]);
+		printf("MAC %d %s\n", i, ethaddr[i]);
+	}
+
+	setenv("ethaddr",  (char *)ethaddr[0]);
+	setenv("eth1addr", (char *)ethaddr[1]);
+	setenv("eth2addr", (char *)ethaddr[2]);
+	setenv("eth3addr", (char *)ethaddr[3]);
+
+	return 0;
+}
+
+int mac_read(void)
+{
+	int ret, length;
+	unsigned int crc = 0;
+	unsigned char dev = ID_EEPROM_ADDR, *data;
+
+	length = sizeof(EEPROM_data);
+	ret = i2c_read(dev, 0, 1, (unsigned char *)(&mac_data), length);
+	if (ret) {
+		printf("Read failed.\n");
+		return -1;
+	}
+
+	data = (unsigned char *)(&mac_data);
+	printf("Check CRC on reading ...");
+	crc = crc32(crc, data, length - 4);
+	if (crc != mac_data.crc) {
+		printf("CRC checksum is invalid, in EEPROM CRC is %x, calculated CRC is %x\n",
+		     mac_data.crc, crc);
+		return -1;
+	} else {
+		printf("CRC OK\n");
+		mac_show();
+	}
+	return 0;
+}
+
+int mac_prog(void)
+{
+	int ret, i, length;
+	unsigned int crc = 0;
+	unsigned char dev = ID_EEPROM_ADDR, *ptr;
+	unsigned char *eeprom_data = (unsigned char *)(&mac_data);
+
+	for (i = 0; i < sizeof(mac_data.res_1); i++)
+		mac_data.res_1[i] = 0;
+	for (i = 0; i < sizeof(mac_data.res_2); i++)
+		mac_data.res_2[i] = 0;
+	length = sizeof(EEPROM_data);
+	crc = crc32(crc, eeprom_data, length - 4);
+	mac_data.crc = crc;
+	for (i = 0, ptr = eeprom_data; i < length; i += 8, ptr += 8) {
+		ret =
+		    i2c_write(dev, i, 1, ptr,
+			      (length - i) < 8 ? (length - i) : 8);
+		udelay(5000);	/* 5ms write cycle timing */
+		if (ret)
+			break;
+	}
+	if (ret) {
+		printf("Programming failed.\n");
+		return -1;
+	} else {
+		printf("Programming %d bytes. Reading back ...\n", length);
+		mac_read();
+	}
+	return 0;
+}
+
+int do_mac(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	int i;
+	char cmd = 's';
+	unsigned long long mac_val;
+
+	if (i2c_probe(ID_EEPROM_ADDR) != 0)
+		return -1;
+
+	if (argc > 1) {
+		cmd = argv[1][0];
+		switch (cmd) {
+		case 'r':	/* display */
+			mac_read();
+			break;
+		case 's':	/* save */
+			mac_prog();
+			break;
+		case 'i':	/* id */
+			for (i = 0; i < 4; i++) {
+				mac_data.id[i] = argv[2][i];
+			}
+			break;
+		case 'n':	/* serial number */
+			for (i = 0; i < 12; i++) {
+				mac_data.sn[i] = argv[2][i];
+			}
+			break;
+		case 'e':	/* errata */
+			for (i = 0; i < 5; i++) {
+				mac_data.errata[i] = argv[2][i];
+			}
+			break;
+		case 'd':	/* date */
+			for (i = 0; i < 7; i++) {
+				mac_data.date[i] = argv[2][i];
+			}
+			break;
+		case 'p':	/* number of ports */
+			mac_data.tab_size =
+			    (unsigned char)simple_strtoul(argv[2], NULL, 16);
+			break;
+		case '0':	/* mac 0 */
+		case '1':	/* mac 1 */
+		case '2':	/* mac 2 */
+		case '3':	/* mac 3 */
+		case '4':	/* mac 4 */
+		case '5':	/* mac 5 */
+		case '6':	/* mac 6 */
+		case '7':	/* mac 7 */
+			mac_val = simple_strtoull(argv[2], NULL, 16);
+			for (i = 0; i < 6; i++) {
+				mac_data.mac[cmd - '0'][i] =
+				    *((unsigned char *)
+				      (((unsigned int)(&mac_val)) + i + 2));
+			}
+			break;
+		case 'h':	/* help */
+		default:
+			printf("Usage:\n%s\n", cmdtp->usage);
+			break;
+		}
+	} else {
+		mac_show();
+	}
+	return 0;
+}
+
+int mac_read_from_eeprom(void)
+{
+	int length, i;
+	unsigned char dev = ID_EEPROM_ADDR;
+	unsigned char *data;
+	unsigned char ethaddr[4][18];
+	unsigned char enetvar[32];
+	unsigned int crc = 0;
+
+	length = sizeof(EEPROM_data);
+	if (i2c_read(dev, 0, 1, (unsigned char *)(&mac_data), length)) {
+		printf("Read failed.\n");
+		return -1;
+	}
+
+	data = (unsigned char *)(&mac_data);
+	crc = crc32(crc, data, length - 4);
+	if (crc != mac_data.crc) {
+		return -1;
+	} else {
+		for (i = 0; i < 4; i++) {
+			if (memcmp(&mac_data.mac[i], "\0\0\0\0\0\0", 6)) {
+				sprintf((char *)ethaddr[i],
+					"%02x:%02x:%02x:%02x:%02x:%02x",
+					mac_data.mac[i][0],
+					mac_data.mac[i][1],
+					mac_data.mac[i][2],
+					mac_data.mac[i][3],
+					mac_data.mac[i][4],
+					mac_data.mac[i][5]);
+				sprintf((char *)enetvar,
+					i ? "eth%daddr" : "ethaddr",
+					i);
+				setenv((char *)enetvar, (char *)ethaddr[i]);
+			}
+		}
+	}
+	return 0;
+}
+#endif /* CFG_ID_EEPROM */