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