Signed-off-by: Sergey Kubushyn ksi@koi8.net --- diff -purN u-boot-i2c.orig/drivers/i2c/soft_i2c.c u-boot-i2c/drivers/i2c/soft_i2c.c --- u-boot-i2c.orig/drivers/i2c/soft_i2c.c 2009-02-12 10:43:41.000000000 -0800 +++ u-boot-i2c/drivers/i2c/soft_i2c.c 2009-02-12 10:46:00.000000000 -0800 @@ -1,4 +1,8 @@ /* + * Copyright (c) 2009 Sergey Kubushyn ksi@koi8.net + * + * Changes for multibus/multiadapter I2C support. + * * (C) Copyright 2001, 2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * @@ -72,375 +76,461 @@ DECLARE_GLOBAL_DATA_PTR; #define PRINTD(fmt,args...) #endif

-#if defined(CONFIG_I2C_MULTI_BUS) -static unsigned int i2c_bus_num __attribute__ ((section (".data"))) = 0; -#endif /* CONFIG_I2C_MULTI_BUS */ - /*----------------------------------------------------------------------- * Local functions */ -#if !defined(CONFIG_SYS_I2C_INIT_BOARD) -static void send_reset (void); +#ifndef I2C_INIT +#define I2C_INIT do {} while(0) #endif -static void send_start (void); -static void send_stop (void); -static void send_ack (int); -static int write_byte (uchar byte); -static uchar read_byte (int); - -#if !defined(CONFIG_SYS_I2C_INIT_BOARD) -/*----------------------------------------------------------------------- - * Send a reset sequence consisting of 9 clocks with the data signal high - * to clock any confused device back into an idle state. Also send a - * <stop> at the end of the sequence for belts & suspenders. - */ -static void send_reset(void) -{ - I2C_SOFT_DECLARATIONS /* intentional without ';' */ - int j; - - I2C_SCL(1); - I2C_SDA(1); -#ifdef I2C_INIT - I2C_INIT; -#endif - I2C_TRISTATE; - for(j = 0; j < 9; j++) { - I2C_SCL(0); - I2C_DELAY; - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - I2C_DELAY; - } - send_stop(); - I2C_TRISTATE; -} +#ifndef I2C_INIT2 +#define I2C_INIT2 do {} while(0) +#endif +#ifndef I2C_INIT3 +#define I2C_INIT3 do {} while(0) #endif +#ifndef I2C_INIT4 +#define I2C_INIT4 do {} while(0) +#endif +

/*----------------------------------------------------------------------- * START: High -> Low on SDA while SCL is High */ -static void send_start(void) -{ - I2C_SOFT_DECLARATIONS /* intentional without ';' */ - - I2C_DELAY; - I2C_SDA(1); - I2C_ACTIVE; - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - I2C_SDA(0); - I2C_DELAY; +#define I2C_SOFT_SEND_START(n) \ +static void send_start##n(void) \ +{ \ + I2C_SOFT_DECLARATIONS##n \ + I2C_DELAY##n; \ + I2C_SDA##n(1); \ + I2C_ACTIVE##n; \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + I2C_SDA##n(0); \ + I2C_DELAY##n; \ }

+ /*----------------------------------------------------------------------- * STOP: Low -> High on SDA while SCL is High */ -static void send_stop(void) -{ - I2C_SOFT_DECLARATIONS /* intentional without ';' */ - - I2C_SCL(0); - I2C_DELAY; - I2C_SDA(0); - I2C_ACTIVE; - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - I2C_SDA(1); - I2C_DELAY; - I2C_TRISTATE; +#define I2C_SOFT_SEND_STOP(n) \ +static void send_stop##n(void) \ +{ \ + I2C_SOFT_DECLARATIONS##n \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_SDA##n(0); \ + I2C_ACTIVE##n; \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + I2C_SDA##n(1); \ + I2C_DELAY##n; \ + I2C_TRISTATE##n; \ }

/*----------------------------------------------------------------------- * ack should be I2C_ACK or I2C_NOACK */ -static void send_ack(int ack) -{ - I2C_SOFT_DECLARATIONS /* intentional without ';' */ - - I2C_SCL(0); - I2C_DELAY; - I2C_ACTIVE; - I2C_SDA(ack); - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - I2C_DELAY; - I2C_SCL(0); - I2C_DELAY; +#define I2C_SOFT_SEND_ACK(n) \ +static void send_ack##n(int ack) \ +{ \ + I2C_SOFT_DECLARATIONS##n \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_ACTIVE##n; \ + I2C_SDA##n(ack); \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + I2C_DELAY##n; \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ }

/*----------------------------------------------------------------------- - * Send 8 bits and look for an acknowledgement. + * Send a reset sequence consisting of 9 clocks with the data signal high + * to clock any confused device back into an idle state. Also send a + * <stop> at the end of the sequence for belts & suspenders. */ -static int write_byte(uchar data) -{ - I2C_SOFT_DECLARATIONS /* intentional without ';' */ - int j; - int nack; - - I2C_ACTIVE; - for(j = 0; j < 8; j++) { - I2C_SCL(0); - I2C_DELAY; - I2C_SDA(data & 0x80); - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - I2C_DELAY; - - data <<= 1; - } - - /* - * Look for an <ACK>(negative logic) and return it. - */ - I2C_SCL(0); - I2C_DELAY; - I2C_SDA(1); - I2C_TRISTATE; - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - I2C_DELAY; - nack = I2C_READ; - I2C_SCL(0); - I2C_DELAY; - I2C_ACTIVE; - - return(nack); /* not a nack is an ack */ +#define I2C_SOFT_SEND_RESET(n) \ +static void send_reset##n(void) \ +{ \ + I2C_SOFT_DECLARATIONS##n \ + int j; \ + I2C_SCL##n(1); \ + I2C_SDA##n(1); \ + I2C_INIT##n; \ + I2C_TRISTATE##n; \ + for(j = 0; j < 9; j++) { \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + I2C_DELAY##n; \ + } \ + send_stop##n(); \ + I2C_TRISTATE##n; \ }

-#if defined(CONFIG_I2C_MULTI_BUS) -/* - * Functions for multiple I2C bus handling - */ -unsigned int i2c_get_bus_num(void) -{ - return i2c_bus_num; -} - -int i2c_set_bus_num(unsigned int bus) -{ -#if defined(CONFIG_I2C_MUX) - if (bus < CONFIG_SYS_MAX_I2C_BUS) { - i2c_bus_num = bus; - } else { - int ret; - - ret = i2x_mux_select_mux(bus); - if (ret == 0) - i2c_bus_num = bus; - else - return ret; - } -#else - if (bus >= CONFIG_SYS_MAX_I2C_BUS) - return -1; - i2c_bus_num = bus; -#endif - return 0; -}

-/* TODO: add 100/400k switching */ -unsigned int i2c_get_bus_speed(void) -{ - return CONFIG_SYS_I2C_SPEED; +/*----------------------------------------------------------------------- + * Send 8 bits and look for an acknowledgement. + */ +#define I2C_SOFT_WRITE_BYTE(n) \ +static int write_byte##n(uchar data) \ +{ \ + I2C_SOFT_DECLARATIONS##n \ + int j; \ + int nack; \ + I2C_ACTIVE##n; \ + for(j = 0; j < 8; j++) { \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_SDA##n(data & 0x80); \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + I2C_DELAY##n; \ + data <<= 1; \ + } \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_SDA##n(1); \ + I2C_TRISTATE##n; \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + I2C_DELAY##n; \ + nack = I2C_READ##n; \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_ACTIVE##n; \ + return(nack); \ }

-int i2c_set_bus_speed(unsigned int speed) -{ - if (speed != CONFIG_SYS_I2C_SPEED) - return -1; - - return 0; -} -#endif

/*----------------------------------------------------------------------- * if ack == I2C_ACK, ACK the byte so can continue reading, else * send I2C_NOACK to end the read. */ -static uchar read_byte(int ack) -{ - I2C_SOFT_DECLARATIONS /* intentional without ';' */ - int data; - int j; - - /* - * Read 8 bits, MSB first. - */ - I2C_TRISTATE; - I2C_SDA(1); - data = 0; - for(j = 0; j < 8; j++) { - I2C_SCL(0); - I2C_DELAY; - I2C_SCL(1); - I2C_DELAY; - data <<= 1; - data |= I2C_READ; - I2C_DELAY; - } - send_ack(ack); - - return(data); -} - -/*=====================================================================*/ -/* Public Functions */ -/*=====================================================================*/ +#define I2C_SOFT_READ_BYTE(n) \ +static uchar read_byte##n(int ack) \ +{ \ + I2C_SOFT_DECLARATIONS##n \ + int data; \ + int j; \ + I2C_TRISTATE##n; \ + I2C_SDA##n(1); \ + data = 0; \ + for(j = 0; j < 8; j++) { \ + I2C_SCL##n(0); \ + I2C_DELAY##n; \ + I2C_SCL##n(1); \ + I2C_DELAY##n; \ + data <<= 1; \ + data |= I2C_READ##n; \ + I2C_DELAY##n; \ + } \ + send_ack##n(ack); \ + return(data); \ +}

-/*----------------------------------------------------------------------- + +/*============================================================*/ +/* I2C Ops */ +/*============================================================*/ + +/*-------------------------------------------------------------- * Initialization */ -void i2c_init (int speed, int slaveaddr) -{ -#if defined(CONFIG_SYS_I2C_INIT_BOARD) - /* call board specific i2c bus reset routine before accessing the */ - /* environment, which might be in a chip on that bus. For details */ - /* about this problem see doc/I2C_Edge_Conditions. */ - i2c_init_board(); + +#ifdef CONFIG_SYS_I2C_INIT_BOARD +#define I2C_SOFT_INIT_ADAPTER(n) \ +static void soft_i2c_init##n(int speed, int slaveaddr) \ +{ \ + /* call board specific i2c bus reset routine before accessing the */ \ + /* environment, which might be in a chip on that bus. For details */ \ + /* about this problem see doc/I2C_Edge_Conditions. */ \ + SOFT_I2C_INIT_BOARD; \ +} #else - /* - * WARNING: Do NOT save speed in a static variable: if the - * I2C routines are called before RAM is initialized (to read - * the DIMM SPD, for instance), RAM won't be usable and your - * system will crash. - */ - send_reset (); -#endif +#define I2C_SOFT_INIT_ADAPTER(n) \ +static void soft_i2c_init##n(int speed, int slaveaddr) \ +{ \ + /* WARNING: Do NOT save speed in a static variable: if the */ \ + /* I2C routines are called before RAM is initialized (to read */ \ + /* the DIMM SPD, for instance), RAM won't be usable and your */ \ + /* system will crash. */ \ + send_reset##n(); \ } +#endif +

/*----------------------------------------------------------------------- * Probe to see if a chip is present. Also good for checking for the * completion of EEPROM writes since the chip stops responding until * the write completes (typically 10mSec). */ -int i2c_probe(uchar addr) -{ - int rc; - - /* - * perform 1 byte write transaction with just address byte - * (fake write) - */ - send_start(); - rc = write_byte ((addr << 1) | 0); - send_stop(); - - return (rc ? 1 : 0); +#define I2C_SOFT_PROBE(n) \ +static int soft_i2c_probe##n(uchar addr) \ +{ \ + int rc; \ + /* perform 1 byte write transaction with just address byte */ \ + /* (fake write) */ \ + send_start##n(); \ + rc = write_byte##n((addr << 1) | 0); \ + send_stop##n(); \ + return (rc ? 1 : 0); \ }

+ /*----------------------------------------------------------------------- * Read bytes */ -int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - int shift; - PRINTD("i2c_read: chip %02X addr %02X alen %d buffer %p len %d\n", - chip, addr, alen, buffer, len); +#ifdef CONFIG_SOFT_I2C_READ_REPEATED_START +#define RRSS_STOP 0 +#else +#define RRSS_STOP 1 +#endif

#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW - /* - * EEPROM chips that implement "address overflow" are ones - * like Catalyst 24WC04/08/16 which has 9/10/11 bits of - * address and the extra bits end up in the "chip address" - * bit slots. This makes a 24WC08 (1Kbyte) chip look like - * four 256 byte chips. - * - * Note that we consider the length of the address field to - * still be one byte because the extra address bits are - * hidden in the chip address. - */ - chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); - - PRINTD("i2c_read: fix addr_overflow: chip %02X addr %02X\n", - chip, addr); -#endif - - /* - * Do the addressing portion of a write cycle to set the - * chip's address pointer. If the address length is zero, - * don't do the normal write cycle to set the address pointer, - * there is no address pointer in this chip. - */ - send_start(); - if(alen > 0) { - if(write_byte(chip << 1)) { /* write cycle */ - send_stop(); - PRINTD("i2c_read, no chip responded %02X\n", chip); - return(1); - } - shift = (alen-1) * 8; - while(alen-- > 0) { - if(write_byte(addr >> shift)) { - PRINTD("i2c_read, address not <ACK>ed\n"); - return(1); - } - shift -= 8; - } - - /* Some I2C chips need a stop/start sequence here, - * other chips don't work with a full stop and need - * only a start. Default behaviour is to send the - * stop/start sequence. - */ -#ifdef CONFIG_SOFT_I2C_READ_REPEATED_START - send_start(); +#define DO_EEAD_OVF chip |= ((addr >> (alen * 8)) & \ + CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); \ + PRINTD("%s: fix addr_overflow: chip %02X addr %02X\n", \ + __FUNCTION__, chip, addr); + #else - send_stop(); - send_start(); +#define DO_EEAD_OVF #endif - } - /* - * Send the chip address again, this time for a read cycle. - * Then read the data. On the last byte, we do a NACK instead - * of an ACK(len == 0) to terminate the read. - */ - write_byte((chip << 1) | 1); /* read cycle */ - while(len-- > 0) { - *buffer++ = read_byte(len == 0); - } - send_stop(); - return(0); + +#define I2C_SOFT_READ(n) \ +static int soft_i2c_read##n(uchar chip, uint addr, int alen, uchar *buffer, int len) \ +{ \ + int shift; \ + PRINTD("%s: chip %02X addr %02X alen %d buffer %p len %d\n", \ + __FUNCTION__, chip, addr, alen, buffer, len); \ + /* EEPROM chips that implement "address overflow" are ones */ \ + /* like Catalyst 24WC04/08/16 which has 9/10/11 bits of */ \ + /* address and the extra bits end up in the "chip address" */ \ + /* bit slots. This makes a 24WC08 (1Kbyte) chip look like */ \ + /* four 256 byte chips. */ \ + /* */ \ + /* Note that we consider the length of the address field to */ \ + /* still be one byte because the extra address bits are */ \ + /* hidden in the chip address. */ \ + DO_EEAD_OVF \ + /* Do the addressing portion of a write cycle to set the */ \ + /* chip's address pointer. If the address length is zero, */ \ + /* don't do the normal write cycle to set the address pointer, */ \ + /* there is no address pointer in this chip. */ \ + send_start##n(); \ + if(alen > 0) { \ + if(write_byte##n(chip << 1)) { /* write cycle */ \ + send_stop##n(); \ + PRINTD("%s, no chip responded %02X\n", __FUNCTION__, chip); \ + return(1); \ + } \ + shift = (alen-1) * 8; \ + while(alen-- > 0) { \ + if(write_byte##n(addr >> shift)) { \ + PRINTD("%s, address not <ACK>ed\n", __FUNCTION__); \ + return(1); \ + } \ + shift -= 8; \ + } \ + if(RRSS_STOP) { \ + send_stop##n(); /* reportedly some chips need a full stop */ \ + } \ + send_start##n(); \ + } \ + /* Send the chip address again, this time for a read cycle. */ \ + /* Then read the data. On the last byte, we do a NACK instead */ \ + /* of an ACK(len == 0) to terminate the read. */ \ + write_byte##n((chip << 1) | 1); /* read cycle */ \ + while(len-- > 0) { \ + *buffer++ = read_byte##n(len == 0); \ + } \ + send_stop##n(); \ + return(0); \ }

+ /*----------------------------------------------------------------------- * Write bytes */ -int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - int shift, failures = 0; - - PRINTD("i2c_write: chip %02X addr %02X alen %d buffer %p len %d\n", - chip, addr, alen, buffer, len); - - send_start(); - if(write_byte(chip << 1)) { /* write cycle */ - send_stop(); - PRINTD("i2c_write, no chip responded %02X\n", chip); - return(1); - } - shift = (alen-1) * 8; - while(alen-- > 0) { - if(write_byte(addr >> shift)) { - PRINTD("i2c_write, address not <ACK>ed\n"); - return(1); - } - shift -= 8; - } - - while(len-- > 0) { - if(write_byte(*buffer++)) { - failures++; - } - } - send_stop(); - return(failures); +#define I2C_SOFT_WRITE(n) \ +static int soft_i2c_write##n(uchar chip, uint addr, int alen, uchar *buffer, int len) \ +{ \ + int shift, failures = 0; \ + PRINTD("%s: chip %02X addr %02X alen %d buffer %p len %d\n", \ + __FUNCTION__, chip, addr, alen, buffer, len); \ + send_start##n(); \ + if(write_byte##n(chip << 1)) { /* write cycle */ \ + send_stop##n(); \ + PRINTD("%s, no chip responded %02X\n", __FUNCTION__, chip); \ + return(1); \ + } \ + shift = (alen-1) * 8; \ + while(alen-- > 0) { \ + if(write_byte##n(addr >> shift)) { \ + PRINTD("%s, address not <ACK>ed\n", __FUNCTION__); \ + return(1); \ + } \ + shift -= 8; \ + } \ + while(len-- > 0) { \ + if(write_byte##n(*buffer++)) { \ + failures++; \ + } \ + } \ + send_stop##n(); \ + return(failures); \ } + + +#define I2C_SOFT_GET_BUS_SPEED(n) \ +static unsigned int soft_i2c_get_bus_speed##n(void) \ +{ \ + return CONFIG_SYS_SOFT_I2C##n##_SPEED; \ +} + + +#define I2C_SOFT_SET_BUS_SPEED(n) \ +static unsigned int soft_i2c_set_bus_speed##n(unsigned int speed) \ +{ \ + if (speed != CONFIG_SYS_SOFT_I2C##n##_SPEED) \ + return -1; \ + return(speed); \ +} + + +/*============================================================*/ +/* Here comes the real stuff */ +/*============================================================*/ +I2C_SOFT_SEND_START() +I2C_SOFT_SEND_STOP() +I2C_SOFT_SEND_ACK() +#if !defined(CONFIG_SYS_I2C_INIT_BOARD) +I2C_SOFT_SEND_RESET() +#endif +I2C_SOFT_WRITE_BYTE() +I2C_SOFT_READ_BYTE() +I2C_SOFT_INIT_ADAPTER() +I2C_SOFT_PROBE() +I2C_SOFT_READ() +I2C_SOFT_WRITE() +I2C_SOFT_GET_BUS_SPEED() +I2C_SOFT_SET_BUS_SPEED() + +#if defined(I2C_SOFT_DECLARATIONS2) +I2C_SOFT_SEND_START(2) +I2C_SOFT_SEND_STOP(2) +I2C_SOFT_SEND_ACK(2) +#if !defined(CONFIG_SYS_I2C_INIT_BOARD) +I2C_SOFT_SEND_RESET(2) +#endif +I2C_SOFT_WRITE_BYTE(2) +I2C_SOFT_READ_BYTE(2) +I2C_SOFT_INIT_ADAPTER(2) +I2C_SOFT_PROBE(2) +I2C_SOFT_READ(2) +I2C_SOFT_WRITE(2) +I2C_SOFT_GET_BUS_SPEED(2) +I2C_SOFT_SET_BUS_SPEED(2) +#endif + +#if defined(I2C_SOFT_DECLARATIONS3) +I2C_SOFT_SEND_START(3) +I2C_SOFT_SEND_STOP(3) +I2C_SOFT_SEND_ACK(3) +#if !defined(CONFIG_SYS_I2C_INIT_BOARD) +I2C_SOFT_SEND_RESET(3) +#endif +I2C_SOFT_WRITE_BYTE(3) +I2C_SOFT_READ_BYTE(3) +I2C_SOFT_INIT_ADAPTER(3) +I2C_SOFT_PROBE(3) +I2C_SOFT_READ(3) +I2C_SOFT_WRITE(3) +I2C_SOFT_GET_BUS_SPEED(3) +I2C_SOFT_SET_BUS_SPEED(3) +#endif + +#if defined(I2C_SOFT_DECLARATIONS4) +I2C_SOFT_SEND_START(4) +I2C_SOFT_SEND_STOP(4) +I2C_SOFT_SEND_ACK(4) +#if !defined(CONFIG_SYS_I2C_INIT_BOARD) +I2C_SOFT_SEND_RESET(4) +#endif +I2C_SOFT_WRITE_BYTE(4) +I2C_SOFT_READ_BYTE(4) +I2C_SOFT_INIT_ADAPTER(4) +I2C_SOFT_PROBE(4) +I2C_SOFT_READ(4) +I2C_SOFT_WRITE(4) +I2C_SOFT_GET_BUS_SPEED(4) +I2C_SOFT_SET_BUS_SPEED(4) +#endif + +i2c_adap_t soft_i2c_adap[] = { + { + .init = soft_i2c_init, + .probe = soft_i2c_probe, + .read = soft_i2c_read, + .write = soft_i2c_write, + .set_bus_speed = soft_i2c_set_bus_speed, + .get_bus_speed = soft_i2c_get_bus_speed, + .speed = CONFIG_SYS_SOFT_I2C_SPEED, + .slaveaddr = CONFIG_SYS_SOFT_I2C_SLAVE, + .init_done = 0, + .name = "soft-i2c" + }, +#if defined(I2C_SOFT_DECLARATIONS2) + { + .init = soft_i2c_init2, + .probe = soft_i2c_probe2, + .read = soft_i2c_read2, + .write = soft_i2c_write2, + .set_bus_speed = soft_i2c_set_bus_speed2, + .get_bus_speed = soft_i2c_get_bus_speed2, + .speed = CONFIG_SYS_SOFT_I2C2_SPEED, + .slaveaddr = CONFIG_SYS_SOFT_I2C2_SLAVE, + .init_done = 0, + .name = "soft-i2c#2" + }, +#endif +#if defined(I2C_SOFT_DECLARATIONS3) + { + .init = soft_i2c_init3, + .probe = soft_i2c_probe3, + .read = soft_i2c_read3, + .write = soft_i2c_write3, + .set_bus_speed = soft_i2c_set_bus_speed3, + .get_bus_speed = soft_i2c_get_bus_speed3, + .speed = CONFIG_SYS_SOFT_I2C3_SPEED, + .slaveaddr = CONFIG_SYS_SOFT_I2C3_SLAVE, + .init_done = 0, + .name = "soft-i2c#3" + }, +#endif +#if defined(I2C_SOFT_DECLARATIONS4) + { + .init = soft_i2c_init4, + .probe = soft_i2c_probe4, + .read = soft_i2c_read4, + .write = soft_i2c_write4, + .set_bus_speed = soft_i2c_set_bus_speed4, + .get_bus_speed = soft_i2c_get_bus_speed4, + .speed = CONFIG_SYS_SOFT_I2C4_SPEED, + .slaveaddr = CONFIG_SYS_SOFT_I2C4_SLAVE, + .init_done = 0, + .name = "soft-i2c#4" + }, +#endif +};