#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,
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,
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 */
},
};
-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;
}
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,
+
+};
+
+static int cm_x270_libertas_setup(struct spi_device *spi)
+{
+ int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
+ if (err)
+ return err;
+
+ err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
+ if (err)
+ goto err_free_strap;
+
+ 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 int cm_x270_libertas_teardown(struct spi_device *spi)
+{
+ gpio_set_value(GPIO102_WLAN_RST, 0);
+ gpio_free(GPIO102_WLAN_RST);
+ gpio_free(GPIO19_WLAN_STRAP);
+
+ return 0;
+}
+
+struct libertas_spi_platform_data cm_x270_libertas_pdata = {
+ .use_dummy_writes = 1,
+ .setup = cm_x270_libertas_setup,
+ .teardown = cm_x270_libertas_teardown,
+};
+
+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)
+{
+ 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_spi(void) {}
+#endif
+
void __init cmx270_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
cmx270_init_mmc();
cmx270_init_ohci();
cmx270_init_2700G();
+ cmx270_init_spi();
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff