#include <linux/sysdev.h>
#include <linux/irq.h>
#include <linux/gpio.h>
+#include <linux/delay.h>
#include <linux/rtc-v3020.h>
#include <video/mbxfb.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/libertas_spi.h>
+
#include <mach/pxa27x.h>
#include <mach/ohci.h>
#include <mach/mmc.h>
+#include <mach/pxa2xx_spi.h>
#include "generic.h"
/* MMC power enable */
#define GPIO105_MMC_POWER (105)
+/* WLAN GPIOS */
+#define GPIO19_WLAN_STRAP (19)
+#define GPIO102_WLAN_RST (102)
+
static unsigned long cmx270_pin_config[] = {
/* AC'97 */
GPIO28_AC97_BITCLK,
GPIO26_SSP1_RXD,
/* SSP2 */
- GPIO19_SSP2_SCLK,
- GPIO14_SSP2_SFRM,
+ GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */
+ GPIO14_GPIO,
GPIO87_SSP2_TXD,
GPIO88_SSP2_RXD,
GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */
GPIO53_GPIO, /* PC card reset */
+ GPIO102_GPIO, /* WLAN reset */
/* NAND controls */
GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
/* interrupts */
GPIO10_GPIO, /* DM9000 interrupt */
GPIO83_GPIO, /* MMC card detect */
+ GPIO95_GPIO, /* WLAN interrupt */
};
/* V3020 RTC */
#endif
#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
-static int cmx270_mci_init(struct device *dev,
- irq_handler_t cmx270_detect_int,
- void *data)
+static struct pxamci_platform_data cmx270_mci_platform_data = {
+ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
+ .gpio_card_detect = GPIO83_MMC_IRQ,
+ .gpio_card_ro = -1,
+ .gpio_power = GPIO105_MMC_POWER,
+ .gpio_power_invert = 1,
+};
+
+static void __init cmx270_init_mmc(void)
{
- int err;
+ pxa_set_mci_info(&cmx270_mci_platform_data);
+}
+#else
+static inline void cmx270_init_mmc(void) {}
+#endif
+
+#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
+static struct pxa2xx_spi_master cm_x270_spi_info = {
+ .num_chipselect = 1,
+ .enable_dma = 1,
+};
+
+static struct pxa2xx_spi_chip cm_x270_libertas_chip = {
+ .rx_threshold = 1,
+ .tx_threshold = 1,
+ .timeout = 1000,
+ .gpio_cs = 14,
+};
+
+static unsigned long cm_x270_libertas_pin_config[] = {
+ /* SSP2 */
+ GPIO19_SSP2_SCLK,
+ GPIO14_GPIO,
+ GPIO87_SSP2_TXD,
+ GPIO88_SSP2_RXD,
+
+};
- err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power");
- if (err) {
- dev_warn(dev, "power gpio unavailable\n");
+static int cm_x270_libertas_setup(struct spi_device *spi)
+{
+ int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
+ if (err)
return err;
- }
- gpio_direction_output(GPIO105_MMC_POWER, 0);
+ err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
+ if (err)
+ goto err_free_strap;
- err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,
- IRQF_DISABLED | IRQF_TRIGGER_FALLING,
- "MMC card detect", data);
- if (err) {
- gpio_free(GPIO105_MMC_POWER);
- dev_err(dev, "cmx270_mci_init: MMC/SD: can't"
- " request MMC card detect IRQ\n");
- }
+ err = gpio_direction_output(GPIO102_WLAN_RST, 0);
+ if (err)
+ goto err_free_strap;
+ msleep(100);
+
+ err = gpio_direction_output(GPIO19_WLAN_STRAP, 1);
+ if (err)
+ goto err_free_strap;
+ msleep(100);
+
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config));
+
+ gpio_set_value(GPIO102_WLAN_RST, 1);
+ msleep(100);
+
+ spi->bits_per_word = 16;
+ spi_setup(spi);
+
+ return 0;
+
+err_free_strap:
+ gpio_free(GPIO19_WLAN_STRAP);
return err;
}
-static void cmx270_mci_setpower(struct device *dev, unsigned int vdd)
+static int cm_x270_libertas_teardown(struct spi_device *spi)
{
- struct pxamci_platform_data *p_d = dev->platform_data;
-
- if ((1 << vdd) & p_d->ocr_mask) {
- dev_dbg(dev, "power on\n");
- gpio_set_value(GPIO105_MMC_POWER, 0);
- } else {
- gpio_set_value(GPIO105_MMC_POWER, 1);
- dev_dbg(dev, "power off\n");
- }
-}
+ gpio_set_value(GPIO102_WLAN_RST, 0);
+ gpio_free(GPIO102_WLAN_RST);
+ gpio_free(GPIO19_WLAN_STRAP);
-static void cmx270_mci_exit(struct device *dev, void *data)
-{
- free_irq(CMX270_MMC_IRQ, data);
- gpio_free(GPIO105_MMC_POWER);
+ return 0;
}
-static struct pxamci_platform_data cmx270_mci_platform_data = {
- .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
- .init = cmx270_mci_init,
- .setpower = cmx270_mci_setpower,
- .exit = cmx270_mci_exit,
+struct libertas_spi_platform_data cm_x270_libertas_pdata = {
+ .use_dummy_writes = 1,
+ .setup = cm_x270_libertas_setup,
+ .teardown = cm_x270_libertas_teardown,
};
-static void __init cmx270_init_mmc(void)
+static struct spi_board_info cm_x270_spi_devices[] __initdata = {
+ {
+ .modalias = "libertas_spi",
+ .max_speed_hz = 13000000,
+ .bus_num = 2,
+ .irq = gpio_to_irq(95),
+ .chip_select = 0,
+ .controller_data = &cm_x270_libertas_chip,
+ .platform_data = &cm_x270_libertas_pdata,
+ },
+};
+
+static void __init cmx270_init_spi(void)
{
- pxa_set_mci_info(&cmx270_mci_platform_data);
+ pxa2xx_set_spi_info(2, &cm_x270_spi_info);
+ spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices));
}
#else
-static inline void cmx270_init_mmc(void) {}
+static inline void cmx270_init_spi(void) {}
#endif
void __init cmx270_init(void)
cmx270_init_mmc();
cmx270_init_ohci();
cmx270_init_2700G();
+ cmx270_init_spi();
}
git.openpandora.org / pandora-kernel.git / blobdiff