266 lines
6.4 KiB
C
266 lines
6.4 KiB
C
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/*
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* arch/arm/mach-pxa/colibri-pxa320.c
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*
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* Support for Toradex PXA320/310 based Colibri module
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*
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* Daniel Mack <daniel@caiaq.de>
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* Matthias Meier <matthias.j.meier@gmx.net>
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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/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <linux/usb/gpio_vbus.h>
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#include <asm/mach-types.h>
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#include <asm/sizes.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/irq.h>
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#include "pxa320.h"
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#include "colibri.h"
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/usb-ohci-pxa27x.h>
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#include <mach/audio.h>
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#include "pxa27x-udc.h"
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#include "udc.h"
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#include "generic.h"
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#include "devices.h"
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#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
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static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
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/* MMC */
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GPIO22_MMC1_CLK,
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GPIO23_MMC1_CMD,
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GPIO18_MMC1_DAT0,
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GPIO19_MMC1_DAT1,
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GPIO20_MMC1_DAT2,
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GPIO21_MMC1_DAT3,
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GPIO28_GPIO, /* SD detect */
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/* UART 1 configuration (may be set by bootloader) */
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GPIO99_UART1_CTS,
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GPIO104_UART1_RTS,
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GPIO97_UART1_RXD,
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GPIO98_UART1_TXD,
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GPIO101_UART1_DTR,
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GPIO103_UART1_DSR,
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GPIO100_UART1_DCD,
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GPIO102_UART1_RI,
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/* UART 2 configuration */
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GPIO109_UART2_CTS,
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GPIO112_UART2_RTS,
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GPIO110_UART2_RXD,
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GPIO111_UART2_TXD,
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/* UART 3 configuration */
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GPIO30_UART3_RXD,
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GPIO31_UART3_TXD,
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/* UHC */
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GPIO2_2_USBH_PEN,
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GPIO3_2_USBH_PWR,
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/* I2C */
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GPIO32_I2C_SCL,
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GPIO33_I2C_SDA,
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/* PCMCIA */
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MFP_CFG(GPIO59, AF7), /* PRST ; AF7 to tristate */
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MFP_CFG(GPIO61, AF7), /* PCE1 ; AF7 to tristate */
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MFP_CFG(GPIO60, AF7), /* PCE2 ; AF7 to tristate */
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MFP_CFG(GPIO62, AF7), /* PCD ; AF7 to tristate */
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MFP_CFG(GPIO56, AF7), /* PSKTSEL ; AF7 to tristate */
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GPIO27_GPIO, /* RDnWR ; input/tristate */
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GPIO50_GPIO, /* PREG ; input/tristate */
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GPIO2_RDY,
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GPIO5_NPIOR,
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GPIO6_NPIOW,
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GPIO7_NPIOS16,
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GPIO8_NPWAIT,
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GPIO29_GPIO, /* PRDY (READY GPIO) */
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GPIO57_GPIO, /* PPEN (POWER GPIO) */
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GPIO81_GPIO, /* PCD (DETECT GPIO) */
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GPIO77_GPIO, /* PRST (RESET GPIO) */
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GPIO53_GPIO, /* PBVD1 */
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GPIO79_GPIO, /* PBVD2 */
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GPIO54_GPIO, /* POE */
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};
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#else
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static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
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#endif
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#if defined(CONFIG_AX88796)
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#define COLIBRI_ETH_IRQ_GPIO mfp_to_gpio(GPIO36_GPIO)
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/*
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* Asix AX88796 Ethernet
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*/
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static struct ax_plat_data colibri_asix_platdata = {
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.flags = 0, /* defined later */
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.wordlength = 2,
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};
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static struct resource colibri_asix_resource[] = {
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[0] = {
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.start = PXA3xx_CS2_PHYS,
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.end = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
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.end = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
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}
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};
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static struct platform_device asix_device = {
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.name = "ax88796",
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.id = 0,
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.num_resources = ARRAY_SIZE(colibri_asix_resource),
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.resource = colibri_asix_resource,
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.dev = {
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.platform_data = &colibri_asix_platdata
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}
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};
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static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
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GPIO3_nCS2, /* AX88796 chip select */
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GPIO36_GPIO | MFP_PULL_HIGH /* AX88796 IRQ */
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};
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static void __init colibri_pxa320_init_eth(void)
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{
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colibri_pxa3xx_init_eth(&colibri_asix_platdata);
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pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
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platform_device_register(&asix_device);
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}
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#else
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static inline void __init colibri_pxa320_init_eth(void) {}
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#endif /* CONFIG_AX88796 */
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#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
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static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
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.gpio_vbus = mfp_to_gpio(MFP_PIN_GPIO96),
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.gpio_pullup = -1,
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};
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static struct platform_device colibri_pxa320_gpio_vbus = {
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.name = "gpio-vbus",
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.id = -1,
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.dev = {
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.platform_data = &colibri_pxa320_gpio_vbus_info,
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},
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};
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static void colibri_pxa320_udc_command(int cmd)
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{
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if (cmd == PXA2XX_UDC_CMD_CONNECT)
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UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
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else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
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UP2OCR = UP2OCR_HXOE;
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}
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static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
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.udc_command = colibri_pxa320_udc_command,
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.gpio_pullup = -1,
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};
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static void __init colibri_pxa320_init_udc(void)
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{
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pxa_set_udc_info(&colibri_pxa320_udc_info);
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platform_device_register(&colibri_pxa320_gpio_vbus);
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}
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#else
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static inline void colibri_pxa320_init_udc(void) {}
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#endif
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
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GPIO6_2_LCD_LDD_0,
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GPIO7_2_LCD_LDD_1,
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GPIO8_2_LCD_LDD_2,
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GPIO9_2_LCD_LDD_3,
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GPIO10_2_LCD_LDD_4,
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GPIO11_2_LCD_LDD_5,
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GPIO12_2_LCD_LDD_6,
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GPIO13_2_LCD_LDD_7,
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GPIO63_LCD_LDD_8,
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GPIO64_LCD_LDD_9,
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GPIO65_LCD_LDD_10,
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GPIO66_LCD_LDD_11,
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GPIO67_LCD_LDD_12,
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GPIO68_LCD_LDD_13,
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GPIO69_LCD_LDD_14,
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GPIO70_LCD_LDD_15,
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GPIO71_LCD_LDD_16,
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GPIO72_LCD_LDD_17,
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GPIO73_LCD_CS_N,
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GPIO74_LCD_VSYNC,
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GPIO14_2_LCD_FCLK,
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GPIO15_2_LCD_LCLK,
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GPIO16_2_LCD_PCLK,
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GPIO17_2_LCD_BIAS,
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};
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static void __init colibri_pxa320_init_lcd(void)
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{
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pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
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}
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#else
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static inline void colibri_pxa320_init_lcd(void) {}
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#endif
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#if defined(CONFIG_SND_AC97_CODEC) || \
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defined(CONFIG_SND_AC97_CODEC_MODULE)
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static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
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GPIO34_AC97_SYSCLK,
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GPIO35_AC97_SDATA_IN_0,
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GPIO37_AC97_SDATA_OUT,
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GPIO38_AC97_SYNC,
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GPIO39_AC97_BITCLK,
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GPIO40_AC97_nACRESET
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};
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static inline void __init colibri_pxa320_init_ac97(void)
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{
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pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
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pxa_set_ac97_info(NULL);
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}
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#else
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static inline void colibri_pxa320_init_ac97(void) {}
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#endif
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void __init colibri_pxa320_init(void)
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{
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colibri_pxa320_init_eth();
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colibri_pxa3xx_init_nand();
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colibri_pxa320_init_lcd();
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colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
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colibri_pxa320_init_ac97();
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colibri_pxa320_init_udc();
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/* Evalboard init */
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pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
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colibri_evalboard_init();
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}
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MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
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.atag_offset = 0x100,
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.init_machine = colibri_pxa320_init,
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.map_io = pxa3xx_map_io,
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.nr_irqs = PXA_NR_IRQS,
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.init_irq = pxa3xx_init_irq,
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.handle_irq = pxa3xx_handle_irq,
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.init_time = pxa_timer_init,
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.restart = pxa_restart,
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MACHINE_END
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