int mx28evk_enet_gpio_init(void)
{
/* pwr */
//gpio_request(MXS_PIN_TO_GPIO(PINID_SSP1_DATA3), "ENET_PWR");
//gpio_direction_output(MXS_PIN_TO_GPIO(PINID_SSP1_DATA3), 0);
for (i = 0; i < ARRAY_SIZE(mx28evk_eth_mode_pins); i++) {
mxs_release_pin(mx28evk_eth_mode_pins[i].id,
mx28evk_eth_mode_pins[i].name);
}
mx28evk_init_pin_group(mx28evk_eth_mode_pins,
ARRAY_SIZE(mx28evk_eth_mode_pins));
/* reset phy */
gpio_request(MXS_PIN_TO_GPIO(PINID_SSP0_DETECT), "PHY_RESET");
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_SSP0_DETECT), 0);
mdelay(1);
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_SSP0_DETECT), 1);
/* Most a reset should last from switch chip is 14ms */
mdelay(20);
for (i = 0; i < ARRAY_SIZE(mx28evk_eth_mode_pins); i++) {
mxs_release_pin(mx28evk_eth_mode_pins[i].id,
mx28evk_eth_mode_pins[i].name);
}
mx28evk_init_pin_group(mx28evk_eth_pins,
ARRAY_SIZE(mx28evk_eth_pins));
return 0;
}
int mx28evk_enet_gpio_init(void)
{
int i;
printk("Configure external PHY pins...\n");
for (i = 0; i < ARRAY_SIZE(mx28evk_eth_mode_pins); i++) {
mxs_release_pin(mx28evk_eth_mode_pins[i].id,
mx28evk_eth_mode_pins[i].name);
}
mx28evk_init_pin_group(mx28evk_eth_mode_pins,
ARRAY_SIZE(mx28evk_eth_mode_pins));
/* pwr */
if (mxs_get_type(PINID_GPMI_RDY1) == PIN_GPIO) {
gpio_request(MXS_PIN_TO_GPIO(PINID_GPMI_RDY1), "ENET_PWR");
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_GPMI_RDY1), 0);
} else if (mxs_get_type(PINID_LCD_D10) == PIN_GPIO) {
gpio_request(MXS_PIN_TO_GPIO(PINID_LCD_D10), "ENET_PWR");
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_LCD_D10), 0);
} else {
printk(KERN_ERR "Unable to determine correct EN_ENET_3.3V pin\n");
}
/* reset phy */
// gpio_request(MXS_PIN_TO_GPIO(PINID_SSP0_DETECT), "PHY_RESET");
// gpio_direction_output(MXS_PIN_TO_GPIO(PINID_SSP0_DETECT), 0);
// mdelay(1);
printk("Release external PHY reset...\n");
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_SSP0_DETECT), 1);
mdelay(20);
for (i = 0; i < ARRAY_SIZE(mx28evk_eth_mode_pins); i++) {
mxs_release_pin(mx28evk_eth_mode_pins[i].id,
mx28evk_eth_mode_pins[i].name);
}
mx28evk_init_pin_group(mx28evk_eth_pins,
ARRAY_SIZE(mx28evk_eth_pins));
return 0;
}
static void mxs_release_pins(struct pin_desc *pins, int nr)
{
int i;
struct pin_desc *pin;
/* release the pins */
for (i = 0; i < nr; i++) {
pin = &pins[i];
if (pin->fun == PIN_GPIO)
gpio_free(MXS_PIN_TO_GPIO(pin->id));
else
mxs_release_pin(pin->id, pin->name);
}
}
void mx28evk_enet_io_lowerpower_enter(void)
{
int i;
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_SSP1_DATA3), 1);
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_ENET0_RX_CLK), 0);
gpio_request(MXS_PIN_TO_GPIO(PINID_ENET0_TX_CLK), "ETH_INT");
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_ENET0_TX_CLK), 0);
for (i = 0; i < ARRAY_SIZE(mx28evk_eth_pins); i++) {
mxs_release_pin(mx28evk_eth_pins[i].id,
mx28evk_eth_pins[i].name);
gpio_request(MXS_PIN_TO_GPIO(mx28evk_eth_pins[i].id),
mx28evk_eth_pins[i].name);
gpio_direction_output(
MXS_PIN_TO_GPIO(mx28evk_eth_pins[i].id), 0);
}
}
void mx28evk_enet_io_lowerpower_enter(void)
{
int i;
if (mxs_get_type(PINID_GPMI_RDY1) == PIN_GPIO) {
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_GPMI_RDY1), 1);
} else if (mxs_get_type(PINID_LCD_D10) == PIN_GPIO) {
gpio_direction_output(MXS_PIN_TO_GPIO(PINID_LCD_D10), 1);
} else {
printk(KERN_ERR "Unable to determine correct EN_ENET_3.3V pin\n");
}
//gpio_direction_output(MXS_PIN_TO_GPIO(PINID_ENET0_RX_CLK), 0);
//gpio_request(MXS_PIN_TO_GPIO(PINID_ENET0_TX_CLK), "ETH_INT");
//gpio_direction_output(MXS_PIN_TO_GPIO(PINID_ENET0_TX_CLK), 0);
for (i = 0; i < ARRAY_SIZE(mx28evk_eth_pins); i++) {
mxs_release_pin(mx28evk_eth_pins[i].id,
mx28evk_eth_pins[i].name);
gpio_request(MXS_PIN_TO_GPIO(mx28evk_eth_pins[i].id),
mx28evk_eth_pins[i].name);
gpio_direction_output(
MXS_PIN_TO_GPIO(mx28evk_eth_pins[i].id), 0);
}
}
static void mxs_gpio_free(struct gpio_chip *chip, unsigned int pin)
{
struct mxs_gpio_port *port;
port = container_of(chip, struct mxs_gpio_port, port);
return mxs_release_pin(MXS_PIN_ENCODE(port->id, pin), GPIO_ID_NAME);
}