+++ /dev/null
-/*
- * Copyright 2006, 2008-2009, 2011 Freescale Semiconductor
- * York Sun (yorksun@freescale.com)
- * Haiying Wang (haiying.wang@freescale.com)
- * Timur Tabi (timur@freescale.com)
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <i2c.h>
-
-/* #define DEBUG */
-
-/*
- * static eeprom: EEPROM layout
- */
-static struct __attribute__ ((__packed__)) eeprom {
- u8 id[16]; /* 0x01 - 0x0F Type e.g. 100wG-5111 */
- u8 sn[10]; /* 0x10 - 0x19 Serial Number */
- u8 date[6]; /* 0x1A - 0x1F Build Date */
- u8 mac[6]; /* 0x20 - 0x25 MAC address */
- u8 reserved[10];/* 0x26 - 0x2f reserved */
- u32 crc; /* x+1 CRC32 checksum */
-} e;
-
-/* Set to 1 if we've read EEPROM into memory */
-static int has_been_read;
-
-/**
- * show_eeprom - display the contents of the EEPROM
- */
-static void show_eeprom(void)
-{
- unsigned int crc;
- char safe_string[16];
-
-#ifdef DEBUG
- int i;
-#endif
- u8 *p;
-
- /* ID */
- strncpy(safe_string, (char *)e.id, sizeof(e.id));
- safe_string[sizeof(e.id)-1] = 0;
- printf("ID: mvBlueLYNX-X%s\n", safe_string);
-
- /* Serial number */
- strncpy(safe_string, (char *)e.sn, sizeof(e.sn));
- safe_string[sizeof(e.sn)-1] = 0;
- printf("SN: %s\n", safe_string);
-
- /* Build date, BCD date values, as YYMMDDhhmmss */
- printf("Build date: 20%02x/%02x/%02x %02x:%02x:%02x %s\n",
- e.date[0], e.date[1], e.date[2],
- e.date[3] & 0x7F, e.date[4], e.date[5],
- e.date[3] & 0x80 ? "PM" : "");
-
- /* Show MAC address */
- p = e.mac;
- printf("Eth: %02x:%02x:%02x:%02x:%02x:%02x\n",
- p[0], p[1], p[2], p[3], p[4], p[5]);
-
- crc = crc32(0, (void *)&e, sizeof(e) - 4);
-
- if (crc == be32_to_cpu(e.crc))
- printf("CRC: %08x\n", be32_to_cpu(e.crc));
- else
- printf("CRC: %08x (should be %08x)\n", be32_to_cpu(e.crc), crc);
-
-#ifdef DEBUG
- printf("EEPROM dump: (0x%x bytes)\n", sizeof(e));
- for (i = 0; i < sizeof(e); i++) {
- if ((i % 16) == 0)
- printf("%02X: ", i);
- printf("%02X ", ((u8 *)&e)[i]);
- if (((i % 16) == 15) || (i == sizeof(e) - 1))
- printf("\n");
- }
-#endif
-}
-
-/**
- * read_eeprom - read the EEPROM into memory
- */
-static int read_eeprom(void)
-{
- int ret;
-#ifdef CONFIG_SYS_EEPROM_BUS_NUM
- unsigned int bus;
-#endif
-
- if (has_been_read)
- return 0;
-
-#ifdef CONFIG_SYS_EEPROM_BUS_NUM
- bus = i2c_get_bus_num();
- i2c_set_bus_num(CONFIG_SYS_EEPROM_BUS_NUM);
-#endif
-
- ret = eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
- (uchar *)&e, sizeof(e));
-
-#ifdef CONFIG_SYS_EEPROM_BUS_NUM
- i2c_set_bus_num(bus);
-#endif
-
-#ifdef DEBUG
- show_eeprom();
-#endif
-
- has_been_read = (ret == 0) ? 1 : 0;
-
- return ret;
-}
-
-/**
- * update_crc - update the CRC
- *
- * This function should be called after each update to the EEPROM structure,
- * to make sure the CRC is always correct.
- */
-static void update_crc(void)
-{
- u32 crc;
-
- crc = crc32(0, (void *)&e, sizeof(e) - 4);
- e.crc = cpu_to_be32(crc);
-}
-
-/**
- * prog_eeprom - write the EEPROM from memory
- */
-static int prog_eeprom(void)
-{
- int ret = 0;
-#ifdef CONFIG_SYS_EEPROM_BUS_NUM
- unsigned int bus;
-#endif
-
- update_crc();
-
-#ifdef CONFIG_SYS_EEPROM_BUS_NUM
- bus = i2c_get_bus_num();
- i2c_set_bus_num(CONFIG_SYS_EEPROM_BUS_NUM);
-#endif
-
- ret = eeprom_write(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
- (uchar *)&e, sizeof(e));
-
- if (!ret) {
- /* Verify the write by reading back the EEPROM and comparing */
- struct eeprom e2;
-#ifdef DEBUG
- printf("%s verifying...\n", __func__);
-#endif
- ret = eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
- (uchar *)&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;
- }
-
- printf("Programming passed.\n");
- return 0;
-}
-
-/**
- * h2i - converts hex character into a number
- *
- * This function takes a hexadecimal character (e.g. '7' or 'C') and returns
- * the integer equivalent.
- */
-static inline u8 h2i(char p)
-{
- if ((p >= '0') && (p <= '9'))
- return p - '0';
-
- if ((p >= 'A') && (p <= 'F'))
- return (p - 'A') + 10;
-
- if ((p >= 'a') && (p <= 'f'))
- return (p - 'a') + 10;
-
- return 0;
-}
-
-/**
- * set_date - stores the build date into the EEPROM
- *
- * This function takes a pointer to a string in the format "YYMMDDhhmmss"
- * (2-digit year, 2-digit month, etc), converts it to a 6-byte BCD string,
- * and stores it in the build date field of the EEPROM local copy.
- */
-static void set_date(const char *string)
-{
- unsigned int i;
-
- if (strlen(string) != 12) {
- printf("Usage: mac date YYMMDDhhmmss\n");
- return;
- }
-
- for (i = 0; i < 6; i++)
- e.date[i] = h2i(string[2 * i]) << 4 | h2i(string[2 * i + 1]);
-
- update_crc();
-}
-
-/**
- * set_mac_address - stores a MAC address into the EEPROM
- *
- * This function takes a pointer to MAC address string
- * (i.e."XX:XX:XX:XX:XX:XX", where "XX" is a two-digit hex number) and
- * stores it in the MAC address field in the EEPROM local copy.
- */
-static void set_mac_address(const char *string)
-{
- char *p = (char *) string;
- unsigned int i;
-
- for (i = 0; *p && (i < 6); i++) {
- e.mac[i] = simple_strtoul(p, &p, 16);
- if (*p == ':')
- p++;
- }
-
- update_crc();
-}
-
-int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- char cmd;
-
- if (argc == 1) {
- show_eeprom();
- return 0;
- }
-
- cmd = argv[1][0];
-
- if (cmd == 'r') {
-#ifdef DEBUG
- printf("%s read\n", __func__);
-#endif
- read_eeprom();
- return 0;
- }
-
- if (argc == 2) {
- switch (cmd) {
- case 's': /* save */
-#ifdef DEBUG
- printf("%s save\n", __func__);
-#endif
- prog_eeprom();
- break;
- default:
- return cmd_usage(cmdtp);
- }
-
- return 0;
- }
-
- /* We know we have at least one parameter */
-
- switch (cmd) {
- case 'n': /* serial number */
-#ifdef DEBUG
- printf("%s serial number\n", __func__);
-#endif
- memset(e.sn, 0, sizeof(e.sn));
- strncpy((char *)e.sn, argv[2], sizeof(e.sn) - 1);
- update_crc();
- break;
- case 'd': /* date BCD format YYMMDDhhmmss */
- set_date(argv[2]);
- break;
- case 'e': /* errata */
- printf("mac errata not implemented\n");
- break;
- case 'i': /* id */
- memset(e.id, 0, sizeof(e.id));
- strncpy((char *)e.id, argv[2], sizeof(e.id) - 1);
- update_crc();
- break;
- case 'p': /* ports */
- printf("mac ports not implemented (always 1 port)\n");
- break;
- case '0' ... '9':
- /* we only have "mac 0" but any digit can be used here */
- set_mac_address(argv[2]);
- break;
- case 'h': /* help */
- default:
- return cmd_usage(cmdtp);
- }
-
- return 0;
-}
-
-static inline int is_portrait(void)
-{
- int i;
- unsigned int orient_index = 0; /* idx of char which determines orientation */
-
- for (i = sizeof(e.id)/sizeof(*e.id) - 1; i>=0; i--) {
- if (e.id[i] == '-') {
- orient_index = i+1;
- break;
- }
- }
-
- return (orient_index &&
- (e.id[orient_index] >= '5') && (e.id[orient_index] <= '8'));
-}
-
-int mac_read_from_eeprom(void)
-{
- u32 crc, crc_offset = offsetof(struct eeprom, crc);
- u32 *crcp; /* Pointer to the CRC in the data read from the EEPROM */
-#define FILENAME_LANDSCAPE "mvBlueLynx_X.rbf"
-#define FILENAME_PORTRAIT "mvBlueLynx_X_sensor_cd.rbf"
-
- if (read_eeprom()) {
- printf("EEPROM Read failed.\n");
- return -1;
- }
-
- crc = crc32(0, (void *)&e, crc_offset);
- crcp = (void *)&e + crc_offset;
- if (crc != be32_to_cpu(*crcp)) {
- printf("EEPROM CRC mismatch (%08x != %08x)\n", crc,
- be32_to_cpu(e.crc));
- return -1;
- }
-
- if (memcmp(&e.mac, "\0\0\0\0\0\0", 6) &&
- memcmp(&e.mac, "\xFF\xFF\xFF\xFF\xFF\xFF", 6)) {
- char ethaddr[18];
-
- sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
- e.mac[0],
- e.mac[1],
- e.mac[2],
- e.mac[3],
- e.mac[4],
- e.mac[5]);
- /* Only initialize environment variables that are blank
- * (i.e. have not yet been set)
- */
- if (!getenv("ethaddr"))
- setenv("ethaddr", ethaddr);
- }
-
- if (memcmp(&e.sn, "\0\0\0\0\0\0\0\0\0\0", 10) &&
- memcmp(&e.sn, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF", 10)) {
- char serial_num[12];
-
- strncpy(serial_num, (char *)e.sn, sizeof(e.sn) - 1);
- /* Only initialize environment variables that are blank
- * (i.e. have not yet been set)
- */
- if (!getenv("serial#"))
- setenv("serial#", serial_num);
- }
-
- /* decide which fpga file to load depending on orientation */
- if (is_portrait())
- setenv("fpgafilename", FILENAME_PORTRAIT);
- else
- setenv("fpgafilename", FILENAME_LANDSCAPE);
-
- /* TODO should I calculate CRC here? */
- return 0;
-}
-
-#ifdef CONFIG_SERIAL_TAG
-void get_board_serial(struct tag_serialnr *serialnr)
-{
- char *serial = getenv("serial#");
-
- if (serial && (strlen(serial) > 3)) {
- /* use the numerical part of the serial number LXnnnnnn */
- serialnr->high = 0;
- serialnr->low = simple_strtoul(serial + 2, NULL, 10);
- } else {
- serialnr->high = 0;
- serialnr->low = 0;
- }
-}
-#endif
projects / people / ms / u-boot.git / blobdiff