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[ARM] 3827/1: iop3xx: add common gpio module

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Implement the gpio_line_{config,get,set} API for iop3xx.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Lennert Buytenhek
2006-09-18 23:23:07 +01:00
committed by Russell King
parent 610300e8f4
commit 72edd84a6b
6 changed files with 81 additions and 8 deletions
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16
drivers/i2c/busses/i2c-iop3xx.c
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@ -82,14 +82,16 @@ iop3xx_i2c_enable(struct i2c_algo_iop3xx_data *iop3xx_adap)
/*
* Every time unit enable is asserted, GPOD needs to be cleared
* on IOP32X to avoid data corruption on the bus.
* on IOP3XX to avoid data corruption on the bus.
*/
#ifdef CONFIG_ARCH_IOP32X
#define IOP321_GPOD_I2C0 0x00c0 /* clear these bits to enable ch0 */
#define IOP321_GPOD_I2C1 0x0030 /* clear these bits to enable ch1 */
*IOP321_GPOD &= (iop3xx_adap->id == 0) ? ~IOP321_GPOD_I2C0 :
~IOP321_GPOD_I2C1;
#ifdef CONFIG_PLAT_IOP
if (iop3xx_adap->id == 0) {
gpio_line_set(IOP3XX_GPIO_LINE(7), GPIO_LOW);
gpio_line_set(IOP3XX_GPIO_LINE(6), GPIO_LOW);
} else {
gpio_line_set(IOP3XX_GPIO_LINE(5), GPIO_LOW);
gpio_line_set(IOP3XX_GPIO_LINE(4), GPIO_LOW);
}
#endif
/* NB SR bits not same position as CR IE bits :-( */
iop3xx_adap->SR_enabled =