diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/mpc8641hpcn/Makefile | 2 | ||||
| -rw-r--r-- | board/mpc8641hpcn/sys_eeprom.c | 244 |
2 files changed, 245 insertions, 1 deletions
diff --git a/board/mpc8641hpcn/Makefile b/board/mpc8641hpcn/Makefile index 060db84..0ebed87 100644 --- a/board/mpc8641hpcn/Makefile +++ b/board/mpc8641hpcn/Makefile @@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk LIB = lib$(BOARD).a -OBJS := $(BOARD).o pixis.o oftree.o +OBJS := $(BOARD).o pixis.o sys_eeprom.o oftree.o SOBJS := init.o $(LIB): $(OBJS) $(SOBJS) diff --git a/board/mpc8641hpcn/sys_eeprom.c b/board/mpc8641hpcn/sys_eeprom.c new file mode 100644 index 0000000..733a57f --- /dev/null +++ b/board/mpc8641hpcn/sys_eeprom.c @@ -0,0 +1,244 @@ +/* + * 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(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", ethaddr[0]); + setenv("eth1addr", ethaddr[1]); + setenv("eth2addr", ethaddr[2]); + setenv("eth3addr", 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, *data, ethaddr[4][18], 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(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(enetvar, i ? "eth%daddr" : "ethaddr", i); + setenv(enetvar, ethaddr[i]); + } + } + } + return 0; +} +#endif /* CFG_ID_EEPROM */ |