cc155c6f2c
For some platforms, it is inappropriate to register all PXA UARTs. In some cases, the UARTs may not be used, and in others we may want to avoid registering the UARTs to allow other drivers (eg, FICP) to make use of the UART. In addition, a while back there was a request to be able to pass platform data to the UART driver. This patch enables all of this by providing functions platforms can call to register each individual UART. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
227 lines
5.5 KiB
C
227 lines
5.5 KiB
C
/*
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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 <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 <mach/pxa3xx-regs.h>
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#include <mach/mfp-pxa320.h>
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#include <mach/colibri.h>
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#include <mach/pxafb.h>
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#include <mach/ohci.h>
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#include <mach/audio.h>
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#include "generic.h"
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#include "devices.h"
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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 = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
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.end = 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_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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static mfp_cfg_t colibri_pxa320_usb_pin_config[] __initdata = {
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GPIO2_2_USBH_PEN,
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GPIO3_2_USBH_PWR,
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};
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static struct pxaohci_platform_data colibri_pxa320_ohci_info = {
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.port_mode = PMM_GLOBAL_MODE,
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.flags = ENABLE_PORT1 | POWER_CONTROL_LOW | POWER_SENSE_LOW,
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};
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void __init colibri_pxa320_init_ohci(void)
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{
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pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_usb_pin_config));
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pxa_set_ohci_info(&colibri_pxa320_ohci_info);
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}
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#else
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static inline void colibri_pxa320_init_ohci(void) {}
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#endif /* CONFIG_USB_OHCI_HCD || CONFIG_USB_OHCI_HCD_MODULE */
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static mfp_cfg_t colibri_pxa320_mmc_pin_config[] __initdata = {
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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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};
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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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/*
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* The following configuration is verified to work with the Toradex Orchid
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* carrier board
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*/
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static mfp_cfg_t colibri_pxa320_uart_pin_config[] __initdata = {
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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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};
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static void __init colibri_pxa320_init_uart(void)
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{
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pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_uart_pin_config));
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}
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void __init colibri_pxa320_init(void)
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{
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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colibri_pxa320_init_eth();
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colibri_pxa320_init_ohci();
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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_pxa3xx_init_mmc(ARRAY_AND_SIZE(colibri_pxa320_mmc_pin_config),
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mfp_to_gpio(MFP_PIN_GPIO28));
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colibri_pxa320_init_uart();
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}
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MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.boot_params = COLIBRI_SDRAM_BASE + 0x100,
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.init_machine = colibri_pxa320_init,
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.map_io = pxa_map_io,
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.init_irq = pxa3xx_init_irq,
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.timer = &pxa_timer,
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MACHINE_END
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