/* * linux/arch/arm/mach-pxa/cm-x270.c * * Copyright (C) 2007, 2008 CompuLab, Ltd. * Mike Rapoport <mike@compulab.co.il> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/platform_device.h> #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" /* physical address if local-bus attached devices */ #define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22)) /* GPIO IRQ usage */ #define GPIO83_MMC_IRQ (83) #define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ) /* 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, GPIO29_AC97_SDATA_IN_0, GPIO30_AC97_SDATA_OUT, GPIO31_AC97_SYNC, GPIO98_AC97_SYSCLK, GPIO113_AC97_nRESET, /* BTUART */ GPIO42_BTUART_RXD, GPIO43_BTUART_TXD, GPIO44_BTUART_CTS, GPIO45_BTUART_RTS, /* STUART */ GPIO46_STUART_RXD, GPIO47_STUART_TXD, /* MCI controller */ GPIO32_MMC_CLK, GPIO112_MMC_CMD, GPIO92_MMC_DAT_0, GPIO109_MMC_DAT_1, GPIO110_MMC_DAT_2, 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, /* I2C */ GPIO117_I2C_SCL, GPIO118_I2C_SDA, /* SSP1 */ GPIO23_SSP1_SCLK, GPIO24_SSP1_SFRM, GPIO25_SSP1_TXD, GPIO26_SSP1_RXD, /* SSP2 */ GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */ GPIO14_GPIO, GPIO87_SSP2_TXD, GPIO88_SSP2_RXD, /* PC Card */ GPIO48_nPOE, GPIO49_nPWE, GPIO50_nPIOR, GPIO51_nPIOW, GPIO85_nPCE_1, GPIO54_nPCE_2, GPIO55_nPREG, GPIO56_nPWAIT, GPIO57_nIOIS16, /* SDRAM and local bus */ GPIO15_nCS_1, GPIO78_nCS_2, GPIO79_nCS_3, GPIO80_nCS_4, GPIO33_nCS_5, GPIO49_nPWE, GPIO18_RDY, /* GPIO */ 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# */ GPIO89_GPIO, /* NAND Ready/Busy */ /* interrupts */ GPIO10_GPIO, /* DM9000 interrupt */ GPIO83_GPIO, /* MMC card detect */ GPIO95_GPIO, /* WLAN interrupt */ }; /* V3020 RTC */ #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE) static struct resource cmx270_v3020_resource[] = { [0] = { .start = RTC_PHYS_BASE, .end = RTC_PHYS_BASE + 4, .flags = IORESOURCE_MEM, }, }; struct v3020_platform_data cmx270_v3020_pdata = { .leftshift = 16, }; static struct platform_device cmx270_rtc_device = { .name = "v3020", .num_resources = ARRAY_SIZE(cmx270_v3020_resource), .resource = cmx270_v3020_resource, .id = -1, .dev = { .platform_data = &cmx270_v3020_pdata, } }; static void __init cmx270_init_rtc(void) { platform_device_register(&cmx270_rtc_device); } #else static inline void cmx270_init_rtc(void) {} #endif /* 2700G graphics */ #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE) static u64 fb_dma_mask = ~(u64)0; static struct resource cmx270_2700G_resource[] = { /* frame buffer memory including ODFB and External SDRAM */ [0] = { .start = PXA_CS2_PHYS, .end = PXA_CS2_PHYS + 0x01ffffff, .flags = IORESOURCE_MEM, }, /* Marathon registers */ [1] = { .start = PXA_CS2_PHYS + 0x03fe0000, .end = PXA_CS2_PHYS + 0x03ffffff, .flags = IORESOURCE_MEM, }, }; static unsigned long save_lcd_regs[10]; 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); 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]; return 0; } static struct mbxfb_platform_data cmx270_2700G_data = { .xres = { .min = 240, .max = 1200, .defval = 640, }, .yres = { .min = 240, .max = 1200, .defval = 480, }, .bpp = { .min = 16, .max = 32, .defval = 16, }, .memsize = 8*1024*1024, .probe = cmx270_marathon_probe, .remove = cmx270_marathon_remove, }; static struct platform_device cmx270_2700G = { .name = "mbx-fb", .dev = { .platform_data = &cmx270_2700G_data, .dma_mask = &fb_dma_mask, .coherent_dma_mask = 0xffffffff, }, .num_resources = ARRAY_SIZE(cmx270_2700G_resource), .resource = cmx270_2700G_resource, .id = -1, }; static void __init cmx270_init_2700G(void) { platform_device_register(&cmx270_2700G); } #else static inline void cmx270_init_2700G(void) {} #endif /* PXA27x OHCI controller setup */ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) static struct pxaohci_platform_data cmx270_ohci_platform_data = { .port_mode = PMM_PERPORT_MODE, .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW, }; static void __init cmx270_init_ohci(void) { pxa_set_ohci_info(&cmx270_ohci_platform_data); } #else static inline void cmx270_init_ohci(void) {} #endif #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE) 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) { 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, }; 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)); #ifdef CONFIG_PM pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP); #endif cmx270_init_rtc(); cmx270_init_mmc(); cmx270_init_ohci(); cmx270_init_2700G(); cmx270_init_spi(); }