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413 lines
8.2 KiB
413 lines
8.2 KiB
/*
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* linux/arch/arm/mach-pxa/cm-x270.c
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*
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* Copyright (C) 2007, 2008 CompuLab, Ltd.
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* Mike Rapoport <mike@compulab.co.il>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/platform_device.h>
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#include <linux/sysdev.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <linux/rtc-v3020.h>
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#include <video/mbxfb.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/libertas_spi.h>
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#include <mach/pxa27x.h>
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#include <mach/ohci.h>
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#include <mach/mmc.h>
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#include <mach/pxa2xx_spi.h>
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#include "generic.h"
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/* physical address if local-bus attached devices */
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#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
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/* GPIO IRQ usage */
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#define GPIO83_MMC_IRQ (83)
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#define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ)
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/* MMC power enable */
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#define GPIO105_MMC_POWER (105)
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/* WLAN GPIOS */
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#define GPIO19_WLAN_STRAP (19)
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#define GPIO102_WLAN_RST (102)
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static unsigned long cmx270_pin_config[] = {
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/* AC'97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO98_AC97_SYSCLK,
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GPIO113_AC97_nRESET,
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/* BTUART */
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GPIO42_BTUART_RXD,
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GPIO43_BTUART_TXD,
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GPIO44_BTUART_CTS,
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GPIO45_BTUART_RTS,
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/* STUART */
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GPIO46_STUART_RXD,
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GPIO47_STUART_TXD,
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/* MCI controller */
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GPIO32_MMC_CLK,
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GPIO112_MMC_CMD,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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/* I2C */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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/* SSP1 */
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GPIO23_SSP1_SCLK,
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GPIO24_SSP1_SFRM,
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GPIO25_SSP1_TXD,
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GPIO26_SSP1_RXD,
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/* SSP2 */
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GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */
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GPIO14_GPIO,
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GPIO87_SSP2_TXD,
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GPIO88_SSP2_RXD,
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/* PC Card */
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GPIO48_nPOE,
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GPIO49_nPWE,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO85_nPCE_1,
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GPIO54_nPCE_2,
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GPIO55_nPREG,
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GPIO56_nPWAIT,
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GPIO57_nIOIS16,
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/* SDRAM and local bus */
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GPIO15_nCS_1,
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GPIO78_nCS_2,
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GPIO79_nCS_3,
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GPIO80_nCS_4,
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GPIO33_nCS_5,
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GPIO49_nPWE,
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GPIO18_RDY,
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/* GPIO */
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GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
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GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */
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GPIO53_GPIO, /* PC card reset */
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GPIO102_GPIO, /* WLAN reset */
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/* NAND controls */
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GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
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GPIO89_GPIO, /* NAND Ready/Busy */
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/* interrupts */
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GPIO10_GPIO, /* DM9000 interrupt */
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GPIO83_GPIO, /* MMC card detect */
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GPIO95_GPIO, /* WLAN interrupt */
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};
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/* V3020 RTC */
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#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
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static struct resource cmx270_v3020_resource[] = {
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[0] = {
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.start = RTC_PHYS_BASE,
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.end = RTC_PHYS_BASE + 4,
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.flags = IORESOURCE_MEM,
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},
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};
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struct v3020_platform_data cmx270_v3020_pdata = {
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.leftshift = 16,
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};
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static struct platform_device cmx270_rtc_device = {
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.name = "v3020",
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.num_resources = ARRAY_SIZE(cmx270_v3020_resource),
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.resource = cmx270_v3020_resource,
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.id = -1,
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.dev = {
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.platform_data = &cmx270_v3020_pdata,
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}
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};
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static void __init cmx270_init_rtc(void)
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{
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platform_device_register(&cmx270_rtc_device);
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}
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#else
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static inline void cmx270_init_rtc(void) {}
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#endif
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/* 2700G graphics */
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#if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
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static u64 fb_dma_mask = ~(u64)0;
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static struct resource cmx270_2700G_resource[] = {
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/* frame buffer memory including ODFB and External SDRAM */
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[0] = {
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.start = PXA_CS2_PHYS,
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.end = PXA_CS2_PHYS + 0x01ffffff,
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.flags = IORESOURCE_MEM,
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},
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/* Marathon registers */
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[1] = {
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.start = PXA_CS2_PHYS + 0x03fe0000,
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.end = PXA_CS2_PHYS + 0x03ffffff,
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.flags = IORESOURCE_MEM,
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},
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};
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static unsigned long cmx270_marathon_on[] = {
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GPIO58_GPIO,
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GPIO59_GPIO,
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GPIO60_GPIO,
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GPIO61_GPIO,
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GPIO62_GPIO,
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GPIO63_GPIO,
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GPIO64_GPIO,
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GPIO65_GPIO,
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GPIO66_GPIO,
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GPIO67_GPIO,
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GPIO68_GPIO,
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GPIO69_GPIO,
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GPIO70_GPIO,
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GPIO71_GPIO,
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GPIO72_GPIO,
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GPIO73_GPIO,
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GPIO74_GPIO,
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GPIO75_GPIO,
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GPIO76_GPIO,
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GPIO77_GPIO,
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};
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static unsigned long cmx270_marathon_off[] = {
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GPIOxx_LCD_TFT_16BPP,
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};
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static int cmx270_marathon_probe(struct fb_info *fb)
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{
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int gpio, err;
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for (gpio = 58; gpio <= 77; gpio++) {
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err = gpio_request(gpio, "LCD");
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if (err)
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return err;
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gpio_direction_input(gpio);
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}
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pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on));
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return 0;
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}
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static int cmx270_marathon_remove(struct fb_info *fb)
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{
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int gpio;
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pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off));
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for (gpio = 58; gpio <= 77; gpio++)
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gpio_free(gpio);
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return 0;
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}
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static struct mbxfb_platform_data cmx270_2700G_data = {
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.xres = {
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.min = 240,
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.max = 1200,
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.defval = 640,
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},
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.yres = {
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.min = 240,
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.max = 1200,
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.defval = 480,
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},
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.bpp = {
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.min = 16,
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.max = 32,
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.defval = 16,
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},
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.memsize = 8*1024*1024,
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.probe = cmx270_marathon_probe,
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.remove = cmx270_marathon_remove,
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};
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static struct platform_device cmx270_2700G = {
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.name = "mbx-fb",
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.dev = {
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.platform_data = &cmx270_2700G_data,
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.dma_mask = &fb_dma_mask,
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(cmx270_2700G_resource),
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.resource = cmx270_2700G_resource,
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.id = -1,
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};
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static void __init cmx270_init_2700G(void)
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{
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platform_device_register(&cmx270_2700G);
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}
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#else
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static inline void cmx270_init_2700G(void) {}
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#endif
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/* PXA27x OHCI controller setup */
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#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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static struct pxaohci_platform_data cmx270_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
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};
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static void __init cmx270_init_ohci(void)
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{
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pxa_set_ohci_info(&cmx270_ohci_platform_data);
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}
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#else
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static inline void cmx270_init_ohci(void) {}
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#endif
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#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
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static struct pxamci_platform_data cmx270_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.gpio_card_detect = GPIO83_MMC_IRQ,
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.gpio_card_ro = -1,
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.gpio_power = GPIO105_MMC_POWER,
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.gpio_power_invert = 1,
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};
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static void __init cmx270_init_mmc(void)
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{
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pxa_set_mci_info(&cmx270_mci_platform_data);
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}
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#else
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static inline void cmx270_init_mmc(void) {}
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#endif
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#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
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static struct pxa2xx_spi_master cm_x270_spi_info = {
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.num_chipselect = 1,
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.enable_dma = 1,
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};
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static struct pxa2xx_spi_chip cm_x270_libertas_chip = {
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.rx_threshold = 1,
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.tx_threshold = 1,
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.timeout = 1000,
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.gpio_cs = 14,
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};
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static unsigned long cm_x270_libertas_pin_config[] = {
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/* SSP2 */
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GPIO19_SSP2_SCLK,
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GPIO14_GPIO,
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GPIO87_SSP2_TXD,
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GPIO88_SSP2_RXD,
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};
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static int cm_x270_libertas_setup(struct spi_device *spi)
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{
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int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
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if (err)
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return err;
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err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
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if (err)
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goto err_free_strap;
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err = gpio_direction_output(GPIO102_WLAN_RST, 0);
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if (err)
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goto err_free_strap;
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msleep(100);
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err = gpio_direction_output(GPIO19_WLAN_STRAP, 1);
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if (err)
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goto err_free_strap;
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msleep(100);
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pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config));
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gpio_set_value(GPIO102_WLAN_RST, 1);
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msleep(100);
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spi->bits_per_word = 16;
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spi_setup(spi);
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return 0;
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err_free_strap:
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gpio_free(GPIO19_WLAN_STRAP);
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return err;
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}
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static int cm_x270_libertas_teardown(struct spi_device *spi)
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{
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gpio_set_value(GPIO102_WLAN_RST, 0);
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gpio_free(GPIO102_WLAN_RST);
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gpio_free(GPIO19_WLAN_STRAP);
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return 0;
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}
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struct libertas_spi_platform_data cm_x270_libertas_pdata = {
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.use_dummy_writes = 1,
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.setup = cm_x270_libertas_setup,
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.teardown = cm_x270_libertas_teardown,
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};
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static struct spi_board_info cm_x270_spi_devices[] __initdata = {
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{
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.modalias = "libertas_spi",
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.max_speed_hz = 13000000,
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.bus_num = 2,
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.irq = gpio_to_irq(95),
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.chip_select = 0,
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.controller_data = &cm_x270_libertas_chip,
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.platform_data = &cm_x270_libertas_pdata,
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},
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};
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static void __init cmx270_init_spi(void)
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{
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pxa2xx_set_spi_info(2, &cm_x270_spi_info);
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spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices));
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}
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#else
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static inline void cmx270_init_spi(void) {}
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#endif
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void __init cmx270_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
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#ifdef CONFIG_PM
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pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
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#endif
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cmx270_init_rtc();
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cmx270_init_mmc();
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cmx270_init_ohci();
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cmx270_init_2700G();
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cmx270_init_spi();
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}
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