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km-arm: i2c support for suenx based boards

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This patch renames the suen3 defines and functions to KM_KIRKWOOD
which is more generic and more precise, because these values
and functions where used by all suenX boards and not only suen3.

Signed-off-by: Lukas Roggli <lukas.roggli@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Prafulla Wadaskar <prafulla@marvell.com>
master
Heiko Schocher 14 years ago committed by Wolfgang Denk
parent 4074296b1c
commit 44097e26cc
2 changed files with 19 additions and 19 deletions
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  1. 20
      board/keymile/km_arm/km_arm.c
  2. 18
      include/configs/km_arm.h

20
board/keymile/km_arm/km_arm.c
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@ -93,7 +93,7 @@ u32 kwmpp_config[] = {
MPP41_GPIO, /* Piggy3 LED[4] */
MPP42_GPIO, /* Piggy3 LED[5] */
MPP43_GPIO, /* Piggy3 LED[6] */
MPP44_GPIO, /* Piggy3 LED[7] */
MPP44_GPIO, /* Piggy3 LED[7], BIST_EN_L */
MPP45_GPIO, /* Piggy3 LED[8] */
MPP46_GPIO, /* Reserved */
MPP47_GPIO, /* Reserved */
@ -155,14 +155,14 @@ int board_early_init_f(void)
#if defined(CONFIG_SOFT_I2C)
/* init the GPIO for I2C Bitbang driver */
kw_gpio_set_valid(SUEN3_SDA_PIN, 1);
kw_gpio_set_valid(SUEN3_SCL_PIN, 1);
kw_gpio_direction_output(SUEN3_SDA_PIN, 0);
kw_gpio_direction_output(SUEN3_SCL_PIN, 0);
kw_gpio_set_valid(KM_KIRKWOOD_SDA_PIN, 1);
kw_gpio_set_valid(KM_KIRKWOOD_SCL_PIN, 1);
kw_gpio_direction_output(KM_KIRKWOOD_SDA_PIN, 0);
kw_gpio_direction_output(KM_KIRKWOOD_SCL_PIN, 0);
#endif
#if defined(CONFIG_SYS_EEPROM_WREN)
kw_gpio_set_valid(SUEN3_ENV_WP, 38);
kw_gpio_direction_output(SUEN3_ENV_WP, 1);
kw_gpio_set_valid(KM_KIRKWOOD_ENV_WP, 38);
kw_gpio_direction_output(KM_KIRKWOOD_ENV_WP, 1);
#endif
return 0;
@ -315,15 +315,15 @@ int get_sda(void)
int get_scl(void)
{
return (kw_gpio_get_value(SUEN3_SCL_PIN) ? 1 : 0);
return kw_gpio_get_value(KM_KIRKWOOD_SCL_PIN) ? 1 : 0;
}
#endif
#if defined(CONFIG_SYS_EEPROM_WREN)
int eeprom_write_enable(unsigned dev_addr, int state)
{
kw_gpio_set_value(SUEN3_ENV_WP, !state);
kw_gpio_set_value(KM_KIRKWOOD_ENV_WP, !state);
return !kw_gpio_get_value(SUEN3_ENV_WP);
return !kw_gpio_get_value(KM_KIRKWOOD_ENV_WP);
}
#endif

18
include/configs/km_arm.h
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@ -179,15 +179,15 @@ void set_sda (int state);
void set_scl (int state);
int get_sda (void);
int get_scl (void);
#define SUEN3_SDA_PIN 8
#define SUEN3_SCL_PIN 9
#define SUEN3_ENV_WP 38
#define I2C_ACTIVE __set_direction(SUEN3_SDA_PIN, 0)
#define I2C_TRISTATE __set_direction(SUEN3_SDA_PIN, 1)
#define I2C_READ (kw_gpio_get_value(SUEN3_SDA_PIN) ? 1 : 0)
#define I2C_SDA(bit) kw_gpio_set_value(SUEN3_SDA_PIN, bit);
#define I2C_SCL(bit) kw_gpio_set_value(SUEN3_SCL_PIN, bit);
#define KM_KIRKWOOD_SDA_PIN 8
#define KM_KIRKWOOD_SCL_PIN 9
#define KM_KIRKWOOD_ENV_WP 38
#define I2C_ACTIVE __set_direction(KM_KIRKWOOD_SDA_PIN, 0)
#define I2C_TRISTATE __set_direction(KM_KIRKWOOD_SDA_PIN, 1)
#define I2C_READ (kw_gpio_get_value(KM_KIRKWOOD_SDA_PIN) ? 1 : 0)
#define I2C_SDA(bit) kw_gpio_set_value(KM_KIRKWOOD_SDA_PIN, bit)
#define I2C_SCL(bit) kw_gpio_set_value(KM_KIRKWOOD_SCL_PIN, bit)
#endif
#define I2C_DELAY udelay(3) /* 1/4 I2C clock duration */

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