diff options
Diffstat (limited to 'cpu/ppc4xx/i2c.c')
-rw-r--r-- | cpu/ppc4xx/i2c.c | 47 |
1 files changed, 13 insertions, 34 deletions
diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c index d8be2ce..9d416ca 100644 --- a/cpu/ppc4xx/i2c.c +++ b/cpu/ppc4xx/i2c.c @@ -42,11 +42,10 @@ DECLARE_GLOBAL_DATA_PTR; * runs from ROM, and we can't switch buses because we can't modify * the global variables. */ -#ifdef CFG_SPD_BUS_NUM -static unsigned int i2c_bus_num __attribute__ ((section ("data"))) = CFG_SPD_BUS_NUM; -#else -static unsigned int i2c_bus_num __attribute__ ((section ("data"))) = 0; +#ifndef CONFIG_SYS_SPD_BUS_NUM +#define CONFIG_SYS_SPD_BUS_NUM 0 #endif +static unsigned int i2c_bus_num __attribute__ ((section (".data"))) = CONFIG_SYS_SPD_BUS_NUM; #endif /* CONFIG_I2C_MULTI_BUS */ static void _i2c_bus_reset(void) @@ -95,14 +94,14 @@ void i2c_init(int speed, int slaveadd) int val, divisor; int bus; -#ifdef CFG_I2C_INIT_BOARD +#ifdef 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(); #endif - for (bus = 0; bus < CFG_MAX_I2C_BUS; bus++) { + for (bus = 0; bus < CONFIG_SYS_MAX_I2C_BUS; bus++) { I2C_SET_BUS(bus); /* Handle possible failed I2C state */ @@ -161,7 +160,7 @@ void i2c_init(int speed, int slaveadd) } /* set to SPD bus as default bus upon powerup */ - I2C_SET_BUS(CFG_SPD_BUS_NUM); + I2C_SET_BUS(CONFIG_SYS_SPD_BUS_NUM); } /* @@ -361,7 +360,7 @@ int i2c_read(uchar chip, uint addr, int alen, uchar * buffer, int len) } -#ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW +#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 @@ -374,7 +373,7 @@ int i2c_read(uchar chip, uint addr, int alen, uchar * buffer, int len) * hidden in the chip address. */ if (alen > 0) - chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW); + chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); #endif if ((ret = i2c_transfer(1, chip<<1, &xaddr[4-alen], alen, buffer, len)) != 0) { if (gd->have_console) @@ -401,7 +400,7 @@ int i2c_write(uchar chip, uint addr, int alen, uchar * buffer, int len) xaddr[3] = addr & 0xFF; } -#ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW +#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 @@ -414,32 +413,12 @@ int i2c_write(uchar chip, uint addr, int alen, uchar * buffer, int len) * hidden in the chip address. */ if (alen > 0) - chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW); + chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); #endif return (i2c_transfer(0, chip<<1, &xaddr[4-alen], alen, buffer, len ) != 0); } -/*----------------------------------------------------------------------- - * Read a register - */ -uchar i2c_reg_read(uchar i2c_addr, uchar reg) -{ - uchar buf; - - i2c_read(i2c_addr, reg, 1, &buf, 1); - - return (buf); -} - -/*----------------------------------------------------------------------- - * Write a register - */ -void i2c_reg_write(uchar i2c_addr, uchar reg, uchar val) -{ - i2c_write(i2c_addr, reg, 1, &val, 1); -} - #if defined(CONFIG_I2C_MULTI_BUS) /* * Functions for multiple I2C bus handling @@ -451,7 +430,7 @@ unsigned int i2c_get_bus_num(void) int i2c_set_bus_num(unsigned int bus) { - if (bus >= CFG_MAX_I2C_BUS) + if (bus >= CONFIG_SYS_MAX_I2C_BUS) return -1; i2c_bus_num = bus; @@ -463,12 +442,12 @@ int i2c_set_bus_num(unsigned int bus) /* TODO: add 100/400k switching */ unsigned int i2c_get_bus_speed(void) { - return CFG_I2C_SPEED; + return CONFIG_SYS_I2C_SPEED; } int i2c_set_bus_speed(unsigned int speed) { - if (speed != CFG_I2C_SPEED) + if (speed != CONFIG_SYS_I2C_SPEED) return -1; return 0; |