diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/lpc32xx_i2c.c | 47 |
1 files changed, 38 insertions, 9 deletions
diff --git a/drivers/i2c/lpc32xx_i2c.c b/drivers/i2c/lpc32xx_i2c.c index 404fd53..e5dfdfe 100644 --- a/drivers/i2c/lpc32xx_i2c.c +++ b/drivers/i2c/lpc32xx_i2c.c @@ -68,7 +68,7 @@ static struct lpc32xx_i2c_registers *lpc32xx_i2c[] = { }; /* Set I2C bus speed */ -static unsigned int lpc32xx_i2c_set_bus_speed(struct i2c_adapter *adap, +static unsigned int __i2c_set_bus_speed(struct i2c_adapter *adap, unsigned int speed) { int half_period; @@ -93,7 +93,7 @@ static unsigned int lpc32xx_i2c_set_bus_speed(struct i2c_adapter *adap, } /* I2C init called by cmd_i2c when doing 'i2c reset'. */ -static void _i2c_init(struct i2c_adapter *adap, +static void __i2c_init(struct i2c_adapter *adap, int requested_speed, int slaveadd) { struct lpc32xx_i2c_registers *i2c = lpc32xx_i2c[adap->hwadapnr]; @@ -101,11 +101,11 @@ static void _i2c_init(struct i2c_adapter *adap, /* soft reset (auto-clears) */ writel(LPC32XX_I2C_SOFT_RESET, &i2c->ctrl); /* set HI and LO periods for half of the default speed */ - lpc32xx_i2c_set_bus_speed(adap, requested_speed); + __i2c_set_bus_speed(adap, requested_speed); } /* I2C probe called by cmd_i2c when doing 'i2c probe'. */ -static int lpc32xx_i2c_probe_chip(struct i2c_adapter *adap, u8 dev) +static int __i2c_probe_chip(struct i2c_adapter *adap, u8 dev) { struct lpc32xx_i2c_registers *i2c = lpc32xx_i2c[adap->hwadapnr]; int stat; @@ -128,7 +128,7 @@ static int lpc32xx_i2c_probe_chip(struct i2c_adapter *adap, u8 dev) * I2C read called by cmd_i2c when doing 'i2c read' and by cmd_eeprom.c * Begin write, send address byte(s), begin read, receive data bytes, end. */ -static int lpc32xx_i2c_read(struct i2c_adapter *adap, u8 dev, uint addr, +static int __i2c_read(struct i2c_adapter *adap, u8 dev, uint addr, int alen, u8 *data, int length) { struct lpc32xx_i2c_registers *i2c = lpc32xx_i2c[adap->hwadapnr]; @@ -196,7 +196,7 @@ static int lpc32xx_i2c_read(struct i2c_adapter *adap, u8 dev, uint addr, * I2C write called by cmd_i2c when doing 'i2c write' and by cmd_eeprom.c * Begin write, send address byte(s), send data bytes, end. */ -static int lpc32xx_i2c_write(struct i2c_adapter *adap, u8 dev, uint addr, +static int __i2c_write(struct i2c_adapter *adap, u8 dev, uint addr, int alen, u8 *data, int length) { struct lpc32xx_i2c_registers *i2c = lpc32xx_i2c[adap->hwadapnr]; @@ -246,21 +246,50 @@ static int lpc32xx_i2c_write(struct i2c_adapter *adap, u8 dev, uint addr, return 0; } -U_BOOT_I2C_ADAP_COMPLETE(lpc32xx_0, _i2c_init, lpc32xx_i2c_probe_chip, +static void lpc32xx_i2c_init(struct i2c_adapter *adap, + int requested_speed, int slaveadd) +{ + __i2c_init(adap, requested_speed, slaveadd); +} + +static int lpc32xx_i2c_probe_chip(struct i2c_adapter *adap, u8 dev) +{ + return __i2c_probe_chip(adap, dev); +} + +static int lpc32xx_i2c_read(struct i2c_adapter *adap, u8 dev, uint addr, + int alen, u8 *data, int length) +{ + return __i2c_read(adap, dev, addr, alen, data, length); +} + +static int lpc32xx_i2c_write(struct i2c_adapter *adap, u8 dev, uint addr, + int alen, u8 *data, int length) +{ + return __i2c_write(adap, dev, addr, alen, data, length); +} + +static unsigned int lpc32xx_i2c_set_bus_speed(struct i2c_adapter *adap, + unsigned int speed) +{ + return __i2c_set_bus_speed(adap, speed); +} + +U_BOOT_I2C_ADAP_COMPLETE(lpc32xx_0, lpc32xx_i2c_init, lpc32xx_i2c_probe_chip, lpc32xx_i2c_read, lpc32xx_i2c_write, lpc32xx_i2c_set_bus_speed, CONFIG_SYS_I2C_LPC32XX_SPEED, CONFIG_SYS_I2C_LPC32XX_SLAVE, 0) -U_BOOT_I2C_ADAP_COMPLETE(lpc32xx_1, _i2c_init, lpc32xx_i2c_probe_chip, +U_BOOT_I2C_ADAP_COMPLETE(lpc32xx_1, lpc32xx_i2c_init, lpc32xx_i2c_probe_chip, lpc32xx_i2c_read, lpc32xx_i2c_write, lpc32xx_i2c_set_bus_speed, CONFIG_SYS_I2C_LPC32XX_SPEED, CONFIG_SYS_I2C_LPC32XX_SLAVE, 1) -U_BOOT_I2C_ADAP_COMPLETE(lpc32xx_2, _i2c_init, NULL, +U_BOOT_I2C_ADAP_COMPLETE(lpc32xx_2, lpc32xx_i2c_init, NULL, lpc32xx_i2c_read, lpc32xx_i2c_write, lpc32xx_i2c_set_bus_speed, 100000, |