1 files changed, 34 insertions, 10 deletions

diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
index 3929ad0aac..11dfd84fe6 100644
--- a/board/freescale/common/sys_eeprom.c
+++ b/board/freescale/common/sys_eeprom.c
@@ -28,13 +28,21 @@
 #include <i2c.h>
 #include <linux/ctype.h>
 
+#ifdef CONFIG_SYS_I2C_EEPROM_CCID
 #include "../common/eeprom.h"
+#define MAX_NUM_PORTS	8
+#endif
 
-#if !defined(CONFIG_SYS_I2C_EEPROM_CCID) && !defined(CONFIG_SYS_I2C_EEPROM_NXID)
-#error "Please define either CONFIG_SYS_I2C_EEPROM_CCID or CONFIG_SYS_I2C_EEPROM_NXID"
+#ifdef CONFIG_SYS_I2C_EEPROM_NXID
+#define MAX_NUM_PORTS	8
+#define NXID_VERSION	0
 #endif
 
-#define MAX_NUM_PORTS	8	/* This value must be 8 as defined in doc */
+#ifdef CONFIG_SYS_I2C_EEPROM_NXID_1
+#define CONFIG_SYS_I2C_EEPROM_NXID
+#define MAX_NUM_PORTS	23
+#define NXID_VERSION	1
+#endif
 
 /**
  * static eeprom: EEPROM layout for CCID or NXID formats
@@ -68,8 +76,8 @@ static struct __attribute__ ((__packed__)) eeprom {
 	u8 res_1[21];     /* 0x2b - 0x3f Reserved */
 	u8 mac_count;     /* 0x40        Number of MAC addresses */
 	u8 mac_flag;      /* 0x41        MAC table flags */
-	u8 mac[MAX_NUM_PORTS][6];     /* 0x42 - 0x71 MAC addresses */
-	u32 crc;          /* 0x72        CRC32 checksum */
+	u8 mac[MAX_NUM_PORTS][6];     /* 0x42 - x MAC addresses */
+	u32 crc;          /* x+1         CRC32 checksum */
 #endif
 } e;
 
@@ -204,7 +212,7 @@ static void update_crc(void)
  */
 static int prog_eeprom(void)
 {
-	int ret = 0; /* shut up gcc */
+	int ret = 0;
 	int i;
 	void *p;
 #ifdef CONFIG_SYS_EEPROM_BUS_NUM
@@ -225,6 +233,11 @@ static int prog_eeprom(void)
 	i2c_set_bus_num(CONFIG_SYS_EEPROM_BUS_NUM);
 #endif
 
+	/*
+	 * The AT24C02 datasheet says that data can only be written in page
+	 * mode, which means 8 bytes at a time, and it takes up to 5ms to
+	 * complete a given write.
+	 */
 	for (i = 0, p = &e; i < sizeof(e); i += 8, p += 8) {
 		ret = i2c_write(CONFIG_SYS_I2C_EEPROM_ADDR, i, CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
 			p, min((sizeof(e) - i), 8));
@@ -233,12 +246,23 @@ static int prog_eeprom(void)
 		udelay(5000);	/* 5ms write cycle timing */
 	}
 
+	if (!ret) {
+		/* Verify the write by reading back the EEPROM and comparing */
+		struct eeprom e2;
+
+		ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
+			CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (void *)&e2, sizeof(e2));
+		if (!ret && memcmp(&e, &e2, sizeof(e)))
+			ret = -1;
+	}
+
 #ifdef CONFIG_SYS_EEPROM_BUS_NUM
 	i2c_set_bus_num(bus);
 #endif
 
 	if (ret) {
 		printf("Programming failed.\n");
+		has_been_read = 0;
 		return -1;
 	}
 
@@ -300,7 +324,7 @@ static void set_mac_address(unsigned int index, const char *string)
 	char *p = (char *) string;
 	unsigned int i;
 
-	if (!string) {
+	if ((index >= MAX_NUM_PORTS) || !string) {
 		printf("Usage: mac <n> XX:XX:XX:XX:XX:XX\n");
 		return;
 	}
@@ -333,7 +357,7 @@ int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	if (cmd == 'i') {
 #ifdef CONFIG_SYS_I2C_EEPROM_NXID
 		memcpy(e.id, "NXID", sizeof(e.id));
-		e.version = 0;
+		e.version = NXID_VERSION;
 #else
 		memcpy(e.id, "CCID", sizeof(e.id));
 #endif
@@ -382,8 +406,8 @@ int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		e.mac_count = simple_strtoul(argv[2], NULL, 16);
 		update_crc();
 		break;
-	case '0' ... '7':	/* "mac 0" through "mac 7" */
-		set_mac_address(cmd - '0', argv[2]);
+	case '0' ... '9':	/* "mac 0" through "mac 22" */
+		set_mac_address(simple_strtoul(argv[1], NULL, 10), argv[2]);
 		break;
 	case 'h':	/* help */
 	default: