1 files changed, 148 insertions, 81 deletions

diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c
index 1d2cec25391d..b88d601a8090 100644
--- a/arch/arm/mach-pxa/cm-x270.c
+++ b/arch/arm/mach-pxa/cm-x270.c
@@ -13,10 +13,15 @@
 #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/pxa2xx_spi.h>
+#include <linux/spi/libertas_spi.h>
+
 #include <mach/pxa27x.h>
 #include <mach/ohci.h>
 #include <mach/mmc.h>
@@ -34,6 +39,10 @@
 /* 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,
@@ -62,26 +71,7 @@ static unsigned long cmx270_pin_config[] = {
 	GPIO111_MMC_DAT_3,
 
 	/* LCD */
-	GPIO58_LCD_LDD_0,
-	GPIO59_LCD_LDD_1,
-	GPIO60_LCD_LDD_2,
-	GPIO61_LCD_LDD_3,
-	GPIO62_LCD_LDD_4,
-	GPIO63_LCD_LDD_5,
-	GPIO64_LCD_LDD_6,
-	GPIO65_LCD_LDD_7,
-	GPIO66_LCD_LDD_8,
-	GPIO67_LCD_LDD_9,
-	GPIO68_LCD_LDD_10,
-	GPIO69_LCD_LDD_11,
-	GPIO70_LCD_LDD_12,
-	GPIO71_LCD_LDD_13,
-	GPIO72_LCD_LDD_14,
-	GPIO73_LCD_LDD_15,
-	GPIO74_LCD_FCLK,
-	GPIO75_LCD_LCLK,
-	GPIO76_LCD_PCLK,
-	GPIO77_LCD_BIAS,
+	GPIOxx_LCD_TFT_16BPP,
 
 	/* I2C */
 	GPIO117_I2C_SCL,
@@ -94,8 +84,8 @@ static unsigned long cmx270_pin_config[] = {
 	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,
 
@@ -123,6 +113,7 @@ static unsigned long cmx270_pin_config[] = {
 	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# */
@@ -131,6 +122,7 @@ static unsigned long cmx270_pin_config[] = {
 	/* interrupts */
 	GPIO10_GPIO,	/* DM9000 interrupt */
 	GPIO83_GPIO,	/* MMC card detect */
+	GPIO95_GPIO,	/* WLAN interrupt */
 };
 
 /* V3020 RTC */
@@ -184,33 +176,57 @@ static struct resource cmx270_2700G_resource[] = {
 	},
 };
 
-static unsigned long save_lcd_regs[10];
+static unsigned long cmx270_marathon_on[] = {
+	GPIO58_GPIO,
+	GPIO59_GPIO,
+	GPIO60_GPIO,
+	GPIO61_GPIO,
+	GPIO62_GPIO,
+	GPIO63_GPIO,
+	GPIO64_GPIO,
+	GPIO65_GPIO,
+	GPIO66_GPIO,
+	GPIO67_GPIO,
+	GPIO68_GPIO,
+	GPIO69_GPIO,
+	GPIO70_GPIO,
+	GPIO71_GPIO,
+	GPIO72_GPIO,
+	GPIO73_GPIO,
+	GPIO74_GPIO,
+	GPIO75_GPIO,
+	GPIO76_GPIO,
+	GPIO77_GPIO,
+};
+
+static unsigned long cmx270_marathon_off[] = {
+	GPIOxx_LCD_TFT_16BPP,
+};
 
 static int cmx270_marathon_probe(struct fb_info *fb)
 {
-	/* save PXA-270 pin settings before enabling 2700G */
-	save_lcd_regs[0] = GPDR1;
-	save_lcd_regs[1] = GPDR2;
-	save_lcd_regs[2] = GAFR1_U;
-	save_lcd_regs[3] = GAFR2_L;
-	save_lcd_regs[4] = GAFR2_U;
-
-	/* Disable PXA-270 on-chip controller driving pins */
-	GPDR1 &= ~(0xfc000000);
-	GPDR2 &= ~(0x00c03fff);
-	GAFR1_U &= ~(0xfff00000);
-	GAFR2_L &= ~(0x0fffffff);
-	GAFR2_U &= ~(0x0000f000);
+	int gpio, err;
+
+	for (gpio = 58; gpio <= 77; gpio++) {
+		err = gpio_request(gpio, "LCD");
+		if (err)
+			return err;
+		gpio_direction_input(gpio);
+	}
+
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on));
 	return 0;
 }
 
 static int cmx270_marathon_remove(struct fb_info *fb)
 {
-	GPDR1 =   save_lcd_regs[0];
-	GPDR2 =   save_lcd_regs[1];
-	GAFR1_U = save_lcd_regs[2];
-	GAFR2_L = save_lcd_regs[3];
-	GAFR2_U = save_lcd_regs[4];
+	int gpio;
+
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off));
+
+	for (gpio = 58; gpio <= 77; gpio++)
+		gpio_free(gpio);
+
 	return 0;
 }
 
@@ -271,64 +287,114 @@ static inline void cmx270_init_ohci(void) {}
 #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
 
-	err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power");
-	if (err) {
-		dev_warn(dev, "power gpio unavailable\n");
+#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,
+
+};
+
+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)
@@ -343,4 +409,5 @@ void __init cmx270_init(void)
 	cmx270_init_mmc();
 	cmx270_init_ohci();
 	cmx270_init_2700G();
+	cmx270_init_spi();
 }