| /* |
| * (C) Copyright 2008 |
| * Heiko Schocher, DENX Software Engineering, hs@denx.de. |
| * |
| * 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> |
| #if defined(CONFIG_MGCOGE) |
| #include <mpc8260.h> |
| #endif |
| #include <ioports.h> |
| #include <malloc.h> |
| #include <hush.h> |
| #include <net.h> |
| #include <netdev.h> |
| #include <asm/io.h> |
| |
| #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) |
| #include <libfdt.h> |
| #endif |
| |
| #include "../common/common.h" |
| #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
| #include <i2c.h> |
| |
| int ivm_calc_crc(unsigned char *buf, int len) |
| { |
| const unsigned short crc_tab[16] = { |
| 0x0000, 0xCC01, 0xD801, 0x1400, |
| 0xF001, 0x3C00, 0x2800, 0xE401, |
| 0xA001, 0x6C00, 0x7800, 0xB401, |
| 0x5000, 0x9C01, 0x8801, 0x4400}; |
| |
| unsigned short crc = 0; /* final result */ |
| unsigned short r1 = 0; /* temp */ |
| unsigned char byte = 0; /* input buffer */ |
| int i; |
| |
| /* calculate CRC from array data */ |
| for (i = 0; i < len; i++) { |
| byte = buf[i]; |
| |
| /* lower 4 bits */ |
| r1 = crc_tab[crc & 0xF]; |
| crc = ((crc) >> 4) & 0x0FFF; |
| crc = crc ^ r1 ^ crc_tab[byte & 0xF]; |
| |
| /* upper 4 bits */ |
| r1 = crc_tab[crc & 0xF]; |
| crc = (crc >> 4) & 0x0FFF; |
| crc = crc ^ r1 ^ crc_tab[(byte >> 4) & 0xF]; |
| } |
| return crc; |
| } |
| |
| static int ivm_set_value(char *name, char *value) |
| { |
| char tempbuf[256]; |
| |
| if (value != NULL) { |
| sprintf(tempbuf, "%s=%s", name, value); |
| return set_local_var(tempbuf, 0); |
| } else { |
| unset_local_var(name); |
| } |
| return 0; |
| } |
| |
| static int ivm_get_value(unsigned char *buf, int len, char *name, int off, |
| int check) |
| { |
| unsigned short val; |
| unsigned char valbuf[30]; |
| |
| if ((buf[off + 0] != buf[off + 2]) && |
| (buf[off + 2] != buf[off + 4])) { |
| printf("%s Error corrupted %s\n", __func__, name); |
| val = -1; |
| } else { |
| val = buf[off + 0] + (buf[off + 1] << 8); |
| if ((val == 0) && (check == 1)) |
| val = -1; |
| } |
| sprintf((char *)valbuf, "%x", val); |
| ivm_set_value(name, (char *)valbuf); |
| return val; |
| } |
| |
| #define INV_BLOCKSIZE 0x100 |
| #define INV_DATAADDRESS 0x21 |
| #define INVENTORYDATASIZE (INV_BLOCKSIZE - INV_DATAADDRESS - 3) |
| |
| #define IVM_POS_SHORT_TEXT 0 |
| #define IVM_POS_MANU_ID 1 |
| #define IVM_POS_MANU_SERIAL 2 |
| #define IVM_POS_PART_NUMBER 3 |
| #define IVM_POS_BUILD_STATE 4 |
| #define IVM_POS_SUPPLIER_PART_NUMBER 5 |
| #define IVM_POS_DELIVERY_DATE 6 |
| #define IVM_POS_SUPPLIER_BUILD_STATE 7 |
| #define IVM_POS_CUSTOMER_ID 8 |
| #define IVM_POS_CUSTOMER_PROD_ID 9 |
| #define IVM_POS_HISTORY 10 |
| #define IVM_POS_SYMBOL_ONLY 11 |
| |
| static char convert_char(char c) |
| { |
| return (c < ' ' || c > '~') ? '.' : c; |
| } |
| |
| static int ivm_findinventorystring(int type, |
| unsigned char* const string, |
| unsigned long maxlen, |
| unsigned char *buf) |
| { |
| int xcode = 0; |
| unsigned long cr = 0; |
| unsigned long addr = INV_DATAADDRESS; |
| unsigned long size = 0; |
| unsigned long nr = type; |
| int stop = 0; /* stop on semicolon */ |
| |
| memset(string, '\0', maxlen); |
| switch (type) { |
| case IVM_POS_SYMBOL_ONLY: |
| nr = 0; |
| stop= 1; |
| break; |
| default: |
| nr = type; |
| stop = 0; |
| } |
| |
| /* Look for the requested number of CR. */ |
| while ((cr != nr) && (addr < INVENTORYDATASIZE)) { |
| if ((buf[addr] == '\r')) { |
| cr++; |
| } |
| addr++; |
| } |
| |
| /* |
| * the expected number of CR was found until the end of the IVM |
| * content --> fill string |
| */ |
| if (addr < INVENTORYDATASIZE) { |
| /* Copy the IVM string in the corresponding string */ |
| for (; (buf[addr] != '\r') && |
| ((buf[addr] != ';') || (!stop)) && |
| (size < (maxlen - 1) && |
| (addr < INVENTORYDATASIZE)); addr++) |
| { |
| size += sprintf((char *)string + size, "%c", |
| convert_char (buf[addr])); |
| } |
| |
| /* |
| * copy phase is done: check if everything is ok. If not, |
| * the inventory data is most probably corrupted: tell |
| * the world there is a problem! |
| */ |
| if (addr == INVENTORYDATASIZE) { |
| xcode = -1; |
| printf("Error end of string not found\n"); |
| } else if ((size >= (maxlen - 1)) && |
| (buf[addr] != '\r')) { |
| xcode = -1; |
| printf("string too long till next CR\n"); |
| } |
| } else { |
| /* |
| * some CR are missing... |
| * the inventory data is most probably corrupted |
| */ |
| xcode = -1; |
| printf("not enough cr found\n"); |
| } |
| return xcode; |
| } |
| |
| #define GET_STRING(name, which, len) \ |
| if (ivm_findinventorystring(which, valbuf, len, buf) == 0) { \ |
| ivm_set_value(name, (char *)valbuf); \ |
| } |
| |
| static int ivm_check_crc(unsigned char *buf, int block) |
| { |
| unsigned long crc; |
| unsigned long crceeprom; |
| |
| crc = ivm_calc_crc(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2); |
| crceeprom = (buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 1] + \ |
| buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2] * 256); |
| if (crc != crceeprom) { |
| if (block == 0) |
| printf("Error CRC Block: %d EEprom: calculated: \ |
| %lx EEprom: %lx\n", block, crc, crceeprom); |
| return -1; |
| } |
| return 0; |
| } |
| |
| static int ivm_analyze_block2(unsigned char *buf, int len) |
| { |
| unsigned char valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN]; |
| unsigned long count; |
| |
| /* IVM_MacAddress */ |
| sprintf((char *)valbuf, "%pM", buf); |
| ivm_set_value("IVM_MacAddress", (char *)valbuf); |
| if (getenv("ethaddr") == NULL) |
| setenv((char *)"ethaddr", (char *)valbuf); |
| /* IVM_MacCount */ |
| count = (buf[10] << 24) + |
| (buf[11] << 16) + |
| (buf[12] << 8) + |
| buf[13]; |
| if (count == 0xffffffff) |
| count = 1; |
| sprintf((char *)valbuf, "%lx", count); |
| ivm_set_value("IVM_MacCount", (char *)valbuf); |
| return 0; |
| } |
| |
| int ivm_analyze_eeprom(unsigned char *buf, int len) |
| { |
| unsigned short val; |
| unsigned char valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN]; |
| unsigned char *tmp; |
| |
| if (ivm_check_crc(buf, 0) != 0) |
| return -1; |
| |
| ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, |
| "IVM_BoardId", 0, 1); |
| val = ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, |
| "IVM_HWKey", 6, 1); |
| if (val != 0xffff) { |
| sprintf((char *)valbuf, "%x", ((val / 100) % 10)); |
| ivm_set_value("IVM_HWVariant", (char *)valbuf); |
| sprintf((char *)valbuf, "%x", (val % 100)); |
| ivm_set_value("IVM_HWVersion", (char *)valbuf); |
| } |
| ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, |
| "IVM_Functions", 12, 0); |
| |
| GET_STRING("IVM_Symbol", IVM_POS_SYMBOL_ONLY, 8) |
| GET_STRING("IVM_DeviceName", IVM_POS_SHORT_TEXT, 64) |
| tmp = (unsigned char *) getenv("IVM_DeviceName"); |
| if (tmp) { |
| int len = strlen((char *)tmp); |
| int i = 0; |
| |
| while (i < len) { |
| if (tmp[i] == ';') { |
| ivm_set_value("IVM_ShortText", |
| (char *)&tmp[i + 1]); |
| break; |
| } |
| i++; |
| } |
| if (i >= len) |
| ivm_set_value("IVM_ShortText", NULL); |
| } else { |
| ivm_set_value("IVM_ShortText", NULL); |
| } |
| GET_STRING("IVM_ManufacturerID", IVM_POS_MANU_ID, 32) |
| GET_STRING("IVM_ManufacturerSerialNumber", IVM_POS_MANU_SERIAL, 20) |
| GET_STRING("IVM_ManufacturerPartNumber", IVM_POS_PART_NUMBER, 32) |
| GET_STRING("IVM_ManufacturerBuildState", IVM_POS_BUILD_STATE, 32) |
| GET_STRING("IVM_SupplierPartNumber", IVM_POS_SUPPLIER_PART_NUMBER, 32) |
| GET_STRING("IVM_DelieveryDate", IVM_POS_DELIVERY_DATE, 32) |
| GET_STRING("IVM_SupplierBuildState", IVM_POS_SUPPLIER_BUILD_STATE, 32) |
| GET_STRING("IVM_CustomerID", IVM_POS_CUSTOMER_ID, 32) |
| GET_STRING("IVM_CustomerProductID", IVM_POS_CUSTOMER_PROD_ID, 32) |
| |
| if (ivm_check_crc(&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0) |
| return 0; |
| ivm_analyze_block2(&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], |
| CONFIG_SYS_IVM_EEPROM_PAGE_LEN); |
| |
| return 0; |
| } |
| |
| int ivm_read_eeprom(void) |
| { |
| #if defined(CONFIG_I2C_MUX) |
| I2C_MUX_DEVICE *dev = NULL; |
| #endif |
| uchar i2c_buffer[CONFIG_SYS_IVM_EEPROM_MAX_LEN]; |
| uchar *buf; |
| unsigned dev_addr = CONFIG_SYS_IVM_EEPROM_ADR; |
| int ret; |
| |
| #if defined(CONFIG_I2C_MUX) |
| /* First init the Bus, select the Bus */ |
| #if defined(CONFIG_SYS_I2C_IVM_BUS) |
| dev = i2c_mux_ident_muxstring((uchar *)CONFIG_SYS_I2C_IVM_BUS); |
| #else |
| buf = (unsigned char *) getenv("EEprom_ivm"); |
| if (buf != NULL) |
| dev = i2c_mux_ident_muxstring(buf); |
| #endif |
| if (dev == NULL) { |
| printf("Error couldnt add Bus for IVM\n"); |
| return -1; |
| } |
| i2c_set_bus_num(dev->busid); |
| #endif |
| |
| buf = (unsigned char *) getenv("EEprom_ivm_addr"); |
| if (buf != NULL) |
| dev_addr = simple_strtoul((char *)buf, NULL, 16); |
| |
| ret = i2c_read(dev_addr, 0, 1, i2c_buffer, |
| CONFIG_SYS_IVM_EEPROM_MAX_LEN); |
| if (ret != 0) { |
| printf ("Error reading EEprom\n"); |
| return -2; |
| } |
| |
| return ivm_analyze_eeprom(i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN); |
| } |
| |
| #if defined(CONFIG_SYS_I2C_INIT_BOARD) |
| #define DELAY_ABORT_SEQ 62 |
| #define DELAY_HALF_PERIOD (500 / (CONFIG_SYS_I2C_SPEED / 1000)) |
| |
| #if defined(CONFIG_MGCOGE) |
| #define SDA_MASK 0x00010000 |
| #define SCL_MASK 0x00020000 |
| static void set_pin(int state, unsigned long mask) |
| { |
| ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3); |
| |
| if (state) |
| setbits_be32(&iop->pdat, mask); |
| else |
| clrbits_be32(&iop->pdat, mask); |
| |
| setbits_be32(&iop->pdir, mask); |
| } |
| |
| static int get_pin(unsigned long mask) |
| { |
| ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3); |
| |
| clrbits_be32(&iop->pdir, mask); |
| return 0 != (in_be32(&iop->pdat) & mask); |
| } |
| |
| static void set_sda(int state) |
| { |
| set_pin(state, SDA_MASK); |
| } |
| |
| static void set_scl(int state) |
| { |
| set_pin(state, SCL_MASK); |
| } |
| |
| static int get_sda(void) |
| { |
| return get_pin(SDA_MASK); |
| } |
| |
| static int get_scl(void) |
| { |
| return get_pin(SCL_MASK); |
| } |
| |
| #if defined(CONFIG_HARD_I2C) |
| static void setports(int gpio) |
| { |
| ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3); |
| |
| if (gpio) { |
| clrbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK)); |
| clrbits_be32(&iop->podr, (SDA_MASK | SCL_MASK)); |
| } else { |
| setbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK)); |
| clrbits_be32(&iop->pdir, (SDA_MASK | SCL_MASK)); |
| setbits_be32(&iop->podr, (SDA_MASK | SCL_MASK)); |
| } |
| } |
| #endif |
| #endif |
| |
| #if !defined(CONFIG_MPC83xx) |
| static void writeStartSeq(void) |
| { |
| set_sda(1); |
| udelay(DELAY_HALF_PERIOD); |
| set_scl(1); |
| udelay(DELAY_HALF_PERIOD); |
| set_sda(0); |
| udelay(DELAY_HALF_PERIOD); |
| set_scl(0); |
| udelay(DELAY_HALF_PERIOD); |
| } |
| |
| /* |
| * I2C is a synchronous protocol and resets of the processor in the middle |
| * of an access can block the I2C Bus until a powerdown of the full unit is |
| * done. This function toggles the SCL until the SCL and SCA line are |
| * released, but max. 16 times, after this a I2C start-sequence is sent. |
| * This I2C Deblocking mechanism was developed by Keymile in association |
| * with Anatech and Atmel in 1998. |
| */ |
| static int i2c_make_abort(void) |
| { |
| int scl_state = 0; |
| int sda_state = 0; |
| int i = 0; |
| int ret = 0; |
| |
| if (!get_sda()) { |
| ret = -1; |
| while (i < 16) { |
| i++; |
| set_scl(0); |
| udelay(DELAY_ABORT_SEQ); |
| set_scl(1); |
| udelay(DELAY_ABORT_SEQ); |
| scl_state = get_scl(); |
| sda_state = get_sda(); |
| if (scl_state && sda_state) { |
| ret = 0; |
| break; |
| } |
| } |
| } |
| if (ret == 0) |
| for (i = 0; i < 5; i++) |
| writeStartSeq(); |
| |
| get_sda(); |
| return ret; |
| } |
| #endif |
| |
| /* |
| * i2c_init_board - reset i2c bus. When the board is powercycled during a |
| * bus transfer it might hang; for details see doc/I2C_Edge_Conditions. |
| */ |
| void i2c_init_board(void) |
| { |
| #if defined(CONFIG_MPC83xx) |
| struct fsl_i2c *dev; |
| dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET); |
| uchar dummy; |
| |
| out_8(&dev->cr, (I2C_CR_MSTA)); |
| out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA)); |
| dummy = in_8(&dev->dr); |
| dummy = in_8(&dev->dr); |
| if (dummy != 0xff) { |
| dummy = in_8(&dev->dr); |
| } |
| out_8(&dev->cr, (I2C_CR_MEN)); |
| out_8(&dev->cr, 0x00); |
| out_8(&dev->cr, (I2C_CR_MEN)); |
| #else |
| #if defined(CONFIG_HARD_I2C) && !defined(MACH_TYPE_KM_KIRKWOOD) |
| immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; |
| i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; |
| |
| /* |
| * disable I2C controller first, otherwhise it thinks we want to |
| * talk to the slave port... |
| */ |
| clrbits_8(&i2c->i2c_i2mod, 0x01); |
| |
| /* Set the PortPins to GPIO */ |
| setports(1); |
| #endif |
| |
| /* Now run the AbortSequence() */ |
| i2c_make_abort(); |
| |
| #if defined(CONFIG_HARD_I2C) |
| /* Set the PortPins back to use for I2C */ |
| setports(0); |
| #endif |
| #endif |
| } |
| #endif |
| #endif |
| |
| #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) |
| int fdt_set_node_and_value(void *blob, |
| char *nodename, |
| char *regname, |
| void *var, |
| int size) |
| { |
| int ret = 0; |
| int nodeoffset = 0; |
| |
| nodeoffset = fdt_path_offset(blob, nodename); |
| if (nodeoffset >= 0) { |
| ret = fdt_setprop(blob, nodeoffset, regname, var, |
| size); |
| if (ret < 0) |
| printf("ft_blob_update(): cannot set %s/%s " |
| "property err:%s\n", nodename, regname, |
| fdt_strerror(ret)); |
| } else { |
| printf("ft_blob_update(): cannot find %s node " |
| "err:%s\n", nodename, fdt_strerror(nodeoffset)); |
| } |
| return ret; |
| } |
| |
| int fdt_get_node_and_value(void *blob, |
| char *nodename, |
| char *propname, |
| void **var) |
| { |
| int len; |
| int nodeoffset = 0; |
| |
| nodeoffset = fdt_path_offset(blob, nodename); |
| if (nodeoffset >= 0) { |
| *var = (void *)fdt_getprop(blob, nodeoffset, propname, &len); |
| if (len == 0) { |
| /* no value */ |
| printf("%s no value\n", __func__); |
| return -1; |
| } else if (len > 0) { |
| return len; |
| } else { |
| printf("libfdt fdt_getprop(): %s\n", |
| fdt_strerror(len)); |
| return -2; |
| } |
| } else { |
| printf("%s: cannot find %s node err:%s\n", __func__, |
| nodename, fdt_strerror(nodeoffset)); |
| return -3; |
| } |
| } |
| #endif |
| |
| #if !defined(MACH_TYPE_KM_KIRKWOOD) |
| int ethernet_present(void) |
| { |
| struct km_bec_fpga *base = (struct km_bec_fpga *)CONFIG_SYS_PIGGY_BASE; |
| |
| return in_8(&base->bprth) & PIGGY_PRESENT; |
| } |
| #endif |
| |
| int board_eth_init(bd_t *bis) |
| { |
| #ifdef CONFIG_KEYMILE_HDLC_ENET |
| (void)keymile_hdlc_enet_initialize(bis); |
| #endif |
| if (ethernet_present()) |
| return cpu_eth_init(bis); |
| |
| return -1; |
| } |