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-rw-r--r--arch/arm/mach-mx23/mx23evk_pins.c522
1 files changed, 427 insertions, 95 deletions
diff --git a/arch/arm/mach-mx23/mx23evk_pins.c b/arch/arm/mach-mx23/mx23evk_pins.c
index 5e60a2b1e387..c12235d75e8c 100644
--- a/arch/arm/mach-mx23/mx23evk_pins.c
+++ b/arch/arm/mach-mx23/mx23evk_pins.c
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/gpio.h>
+#include <linux/delay.h>
#include <mach/pinctrl.h>
@@ -321,79 +322,6 @@ static struct pin_desc mx23evk_fixed_pins[] = {
.drive = 1,
},
#endif
-#if defined(CONFIG_MMC_MXS) || defined(CONFIG_MMC_MXS_MODULE)
- /* Configurations of SSP0 SD/MMC port pins */
- {
- .name = "SSP1_DATA0",
- .id = PINID_SSP1_DATA0,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 1,
- .drive = 1,
- .pull = 1,
- },
- {
- .name = "SSP1_DATA1",
- .id = PINID_SSP1_DATA1,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 1,
- .drive = 1,
- .pull = 1,
- },
- {
- .name = "SSP1_DATA2",
- .id = PINID_SSP1_DATA2,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 1,
- .drive = 1,
- .pull = 1,
- },
- {
- .name = "SSP1_DATA3",
- .id = PINID_SSP1_DATA3,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 1,
- .drive = 1,
- .pull = 1,
- },
- {
- .name = "SSP1_CMD",
- .id = PINID_SSP1_CMD,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 1,
- .drive = 1,
- .pull = 1,
- },
- {
- .name = "SSP1_DETECT",
- .id = PINID_SSP1_DETECT,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 0,
- .drive = 1,
- .pull = 0,
- },
- {
- .name = "SSP1_SCK",
- .id = PINID_SSP1_SCK,
- .fun = PIN_FUN1,
- .strength = PAD_8MA,
- .voltage = PAD_3_3V,
- .pullup = 0,
- .drive = 1,
- .pull = 0,
- },
-#endif
#if defined(CONFIG_FEC) || defined(CONFIG_FEC_MODULE)
{
@@ -510,7 +438,322 @@ static struct pin_desc mx23evk_fixed_pins[] = {
.pull = 1,
},
#endif
+
+#if defined(CONFIG_MTD_NAND_GPMI_NFC) || \
+ defined(CONFIG_MTD_NAND_GPMI_NFC_MODULE)
+ {
+ .name = "GPMI D0",
+ .id = PINID_GPMI_D00,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D1",
+ .id = PINID_GPMI_D01,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D2",
+ .id = PINID_GPMI_D02,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D3",
+ .id = PINID_GPMI_D03,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D4",
+ .id = PINID_GPMI_D04,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D5",
+ .id = PINID_GPMI_D05,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D6",
+ .id = PINID_GPMI_D06,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI D7",
+ .id = PINID_GPMI_D07,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI CLE",
+ .id = PINID_GPMI_CLE,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI ALE",
+ .id = PINID_GPMI_ALE,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI WPN-",
+ .id = PINID_GPMI_WPN,
+ .fun = PIN_FUN1,
+ .strength = PAD_12MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI WR-",
+ .id = PINID_GPMI_WRN,
+ .fun = PIN_FUN1,
+ .strength = PAD_12MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI RD-",
+ .id = PINID_GPMI_RDN,
+ .fun = PIN_FUN1,
+ .strength = PAD_12MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI RDY0",
+ .id = PINID_GPMI_RDY0,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI RDY1",
+ .id = PINID_GPMI_RDY1,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI CE0-",
+ .id = PINID_GPMI_CE0N,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+ {
+ .name = "GPMI CE1-",
+ .id = PINID_GPMI_CE1N,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = !0
+ },
+#endif
+
+};
+
+#if defined(CONFIG_MMC_MXS) || defined(CONFIG_MMC_MXS_MODULE)
+static struct pin_desc mx23evk_mmc_pins[] = {
+ /* Configurations of SSP0 SD/MMC port pins */
+ {
+ .name = "SSP1_DATA0",
+ .id = PINID_SSP1_DATA0,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 1,
+ .drive = 1,
+ .pull = 1,
+ },
+ {
+ .name = "SSP1_DATA1",
+ .id = PINID_SSP1_DATA1,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 1,
+ .drive = 1,
+ .pull = 1,
+ },
+ {
+ .name = "SSP1_DATA2",
+ .id = PINID_SSP1_DATA2,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 1,
+ .drive = 1,
+ .pull = 1,
+ },
+ {
+ .name = "SSP1_DATA3",
+ .id = PINID_SSP1_DATA3,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 1,
+ .drive = 1,
+ .pull = 1,
+ },
+ {
+ .name = "SSP1_CMD",
+ .id = PINID_SSP1_CMD,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 1,
+ .drive = 1,
+ .pull = 1,
+ },
+ {
+ .name = "SSP1_DETECT",
+ .id = PINID_SSP1_DETECT,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = 1,
+ .pull = 0,
+ },
+ {
+ .name = "SSP1_SCK",
+ .id = PINID_SSP1_SCK,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .pullup = 0,
+ .drive = 1,
+ .pull = 0,
+ },
+};
+#endif
+
+#if defined(CONFIG_SPI_MXS) || defined(CONFIG_SPI_MXS_MODULE)
+static struct pin_desc mx23evk_spi_pins[] = {
+ {
+ .name = "SSP1_DATA0",
+ .id = PINID_SSP1_DATA0,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .drive = 1,
+ },
+ {
+ .name = "SSP1_DATA3",
+ .id = PINID_SSP1_DATA3,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .drive = 1,
+ },
+ {
+ .name = "SSP1_CMD",
+ .id = PINID_SSP1_CMD,
+ .fun = PIN_FUN1,
+ .strength = PAD_4MA,
+ .voltage = PAD_3_3V,
+ .drive = 1,
+ },
+ {
+ .name = "SSP1_SCK",
+ .id = PINID_SSP1_SCK,
+ .fun = PIN_FUN1,
+ .strength = PAD_8MA,
+ .voltage = PAD_3_3V,
+ .drive = 1,
+ },
};
+#endif
+
+
+static void mxs_request_pins(struct pin_desc *pins, int nr)
+{
+ int i;
+ struct pin_desc *pin;
+
+ /* configure the pins */
+ for (i = 0; i < nr; i++) {
+ pin = &pins[i];
+ if (pin->fun == PIN_GPIO)
+ gpio_request(MXS_PIN_TO_GPIO(pin->id), pin->name);
+ else
+ mxs_request_pin(pin->id, pin->fun, pin->name);
+ if (pin->drive) {
+ mxs_set_strength(pin->id, pin->strength, pin->name);
+ mxs_set_voltage(pin->id, pin->voltage, pin->name);
+ }
+ if (pin->pull)
+ mxs_set_pullup(pin->id, pin->pullup, pin->name);
+ if (pin->fun == PIN_GPIO) {
+ if (pin->output)
+ gpio_direction_output(MXS_PIN_TO_GPIO(pin->id),
+ pin->data);
+ else
+ gpio_direction_input(MXS_PIN_TO_GPIO(pin->id));
+ }
+ }
+}
+
+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);
+ }
+}
#if defined(CONFIG_MXC_MMA7450) || defined(CONFIG_MXC_MMA7450_MODULE)
int mx23evk_mma7450_pin_init(void)
@@ -537,6 +780,116 @@ int mx23evk_mma7450_pin_release(void)
}
#endif
+#if defined(CONFIG_MMC_MXS) || defined(CONFIG_MMC_MXS_MODULE)
+#define MMC0_POWER MXS_PIN_TO_GPIO(PINID_PWM3)
+#define MMC0_WP MXS_PIN_TO_GPIO(PINID_PWM4)
+
+int mxs_mmc_get_wp_mmc0(void)
+{
+ return gpio_get_value(MMC0_WP);
+}
+
+int mxs_mmc_hw_init_mmc0(void)
+{
+ int ret = 0;
+
+ mxs_request_pins(mx23evk_mmc_pins, ARRAY_SIZE(mx23evk_mmc_pins));
+
+ /* Configure write protect GPIO pin */
+ ret = gpio_request(MMC0_WP, "mmc0_wp");
+ if (ret) {
+ pr_err("wp\n");
+ goto out_wp;
+ }
+ gpio_set_value(MMC0_WP, 0);
+ gpio_direction_input(MMC0_WP);
+
+ /* Configure POWER pin as gpio to drive power to MMC slot */
+ ret = gpio_request(MMC0_POWER, "mmc0_power");
+ if (ret) {
+ pr_err("power\n");
+ goto out_power;
+ }
+ gpio_direction_output(MMC0_POWER, 0);
+ mdelay(100);
+
+ return 0;
+
+out_power:
+ gpio_free(MMC0_WP);
+out_wp:
+ mxs_release_pins(mx23evk_mmc_pins, ARRAY_SIZE(mx23evk_mmc_pins));
+ return ret;
+}
+
+void mxs_mmc_hw_release_mmc0(void)
+{
+ gpio_free(MMC0_POWER);
+ gpio_free(MMC0_WP);
+
+ mxs_release_pins(mx23evk_mmc_pins, ARRAY_SIZE(mx23evk_mmc_pins));
+}
+
+void mxs_mmc_cmd_pullup_mmc0(int enable)
+{
+ mxs_set_pullup(PINID_SSP1_CMD, enable, "mmc0_cmd");
+}
+#else
+int mxs_mmc_get_wp_mmc0(void)
+{
+ return 0;
+}
+int mxs_mmc_hw_init_mmc0(void)
+{
+ return 0;
+}
+
+void mxs_mmc_hw_release_mmc0(void)
+{
+}
+
+void mxs_mmc_cmd_pullup_mmc0(int enable)
+{
+}
+#endif
+
+#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE)
+int mxs_spi_enc_pin_init(void)
+{
+ unsigned gpio = MXS_PIN_TO_GPIO(PINID_SSP1_DATA1);
+
+ mxs_request_pins(mx23evk_spi_pins, ARRAY_SIZE(mx23evk_spi_pins));
+
+ gpio_request(gpio, "ENC28J60_INTR");
+ gpio_direction_input(gpio);
+ set_irq_type(gpio_to_irq(gpio), IRQ_TYPE_EDGE_FALLING);
+
+ return 0;
+}
+int mxs_spi_enc_pin_release(void)
+{
+ unsigned gpio = MXS_PIN_TO_GPIO(PINID_SSP1_DATA1);
+
+
+ gpio_free(gpio);
+ set_irq_type(gpio_to_irq(gpio), IRQ_TYPE_NONE);
+
+ /* release the pins */
+ mxs_release_pins(mx23evk_spi_pins, ARRAY_SIZE(mx23evk_spi_pins));
+
+ return 0;
+}
+#else
+int mxs_spi_enc_pin_init(void)
+{
+ return 0;
+}
+int mxs_spi_enc_pin_release(void)
+{
+ return 0;
+}
+#endif
+
#if defined(CONFIG_FEC) || defined(CONFIG_FEC_MODULE)
int mx23evk_enet_gpio_init(void)
{
@@ -560,26 +913,5 @@ int mx23evk_enet_gpio_init(void)
void __init mx23evk_pins_init(void)
{
- int i;
- struct pin_desc *pin;
- for (i = 0; i < ARRAY_SIZE(mx23evk_fixed_pins); i++) {
- pin = &mx23evk_fixed_pins[i];
- if (pin->fun == PIN_GPIO)
- gpio_request(MXS_PIN_TO_GPIO(pin->id), pin->name);
- else
- mxs_request_pin(pin->id, pin->fun, pin->name);
- if (pin->drive) {
- mxs_set_strength(pin->id, pin->strength, pin->name);
- mxs_set_voltage(pin->id, pin->voltage, pin->name);
- }
- if (pin->pull)
- mxs_set_pullup(pin->id, pin->pullup, pin->name);
- if (pin->fun == PIN_GPIO) {
- if (pin->output)
- gpio_direction_output(MXS_PIN_TO_GPIO(pin->id),
- pin->data);
- else
- gpio_direction_input(MXS_PIN_TO_GPIO(pin->id));
- }
- }
+ mxs_request_pins(mx23evk_fixed_pins, ARRAY_SIZE(mx23evk_fixed_pins));
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-10 18:03:09 +0000