ARM: OMAP3: Add support for OMAP3 Zoom2 board (577145f4) · Commits · 戴 / test

arch/arm/mach-omap2/Kconfig

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		@@ -67,3 +67,7 @@ config MACH_OMAP_3430SDP
		config MACH_NOKIA_RX51
		bool "Nokia RX-51 board"
		depends on ARCH_OMAP3 && ARCH_OMAP34XX

		config MACH_OMAP_ZOOM2
		bool "OMAP3 Zoom2 board"
		depends on ARCH_OMAP3 && ARCH_OMAP34XX

arch/arm/mach-omap2/Makefile

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		@@ -53,7 +53,9 @@ obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o \
		obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o \
		board-rx51-peripherals.o \
		mmc-twl4030.o

		obj-$(CONFIG_MACH_OMAP_ZOOM2) += board-zoom2.o \
		mmc-twl4030.o \
		board-zoom-debugboard.o
		# Platform specific device init code
		ifeq ($(CONFIG_USB_MUSB_SOC),y)
		obj-y += usb-musb.o

arch/arm/mach-omap2/board-zoom-debugboard.c

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		/*
		* Copyright (C) 2009 Texas Instruments Inc.
		* Mikkel Christensen <mlc@ti.com>
		*
		* 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/kernel.h>
		#include <linux/init.h>
		#include <linux/gpio.h>
		#include <linux/serial_8250.h>
		#include <linux/smsc911x.h>

		#include <mach/gpmc.h>

		#define ZOOM2_SMSC911X_CS 7
		#define ZOOM2_SMSC911X_GPIO 158
		#define ZOOM2_QUADUART_CS 3
		#define ZOOM2_QUADUART_GPIO 102
		#define QUART_CLK 1843200
		#define DEBUG_BASE 0x08000000
		#define ZOOM2_ETHR_START DEBUG_BASE

		static struct resource zoom2_smsc911x_resources[] = {
		[0] = {
		.start = ZOOM2_ETHR_START,
		.end = ZOOM2_ETHR_START + SZ_4K,
		.flags = IORESOURCE_MEM,
		},
		[1] = {
		.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_LOWLEVEL,
		},
		};

		static struct smsc911x_platform_config zoom2_smsc911x_config = {
		.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
		.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
		.flags = SMSC911X_USE_32BIT,
		.phy_interface = PHY_INTERFACE_MODE_MII,
		};

		static struct platform_device zoom2_smsc911x_device = {
		.name = "smsc911x",
		.id = -1,
		.num_resources = ARRAY_SIZE(zoom2_smsc911x_resources),
		.resource = zoom2_smsc911x_resources,
		.dev = {
		.platform_data = &zoom2_smsc911x_config,
		},
		};

		static inline void __init zoom2_init_smsc911x(void)
		{
		int eth_cs;
		unsigned long cs_mem_base;
		int eth_gpio = 0;

		eth_cs = ZOOM2_SMSC911X_CS;

		if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
		printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
		return;
		}

		zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0;
		zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff;

		eth_gpio = ZOOM2_SMSC911X_GPIO;

		zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);

		if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
		printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
		eth_gpio);
		return;
		}
		gpio_direction_input(eth_gpio);
		}

		static struct plat_serial8250_port serial_platform_data[] = {
		{
		.mapbase = 0x10000000,
		.irq = OMAP_GPIO_IRQ(102),
		.flags = UPF_BOOT_AUTOCONF\|UPF_IOREMAP\|UPF_SHARE_IRQ,
		.iotype = UPIO_MEM,
		.regshift = 1,
		.uartclk = QUART_CLK,
		}, {
		.flags = 0
		}
		};

		static struct platform_device zoom2_debugboard_serial_device = {
		.name = "serial8250",
		.id = PLAT8250_DEV_PLATFORM1,
		.dev = {
		.platform_data = serial_platform_data,
		},
		};

		static inline void __init zoom2_init_quaduart(void)
		{
		int quart_cs;
		unsigned long cs_mem_base;
		int quart_gpio = 0;

		quart_cs = ZOOM2_QUADUART_CS;

		if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
		printk(KERN_ERR "Failed to request GPMC mem"
		"for Quad UART(TL16CP754C)\n");
		return;
		}

		quart_gpio = ZOOM2_QUADUART_GPIO;

		if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) {
		printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
		quart_gpio);
		return;
		}
		gpio_direction_input(quart_gpio);
		}

		static inline int omap_zoom2_debugboard_detect(void)
		{
		int debug_board_detect = 0;

		debug_board_detect = ZOOM2_SMSC911X_GPIO;

		if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) {
		printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug"
		"board detect\n", debug_board_detect);
		return 0;
		}
		gpio_direction_input(debug_board_detect);

		if (!gpio_get_value(debug_board_detect)) {
		gpio_free(debug_board_detect);
		return 0;
		}
		return 1;
		}

		static struct platform_device *zoom2_devices[] __initdata = {
		&zoom2_smsc911x_device,
		&zoom2_debugboard_serial_device,
		};

		int __init omap_zoom2_debugboard_init(void)
		{
		if (!omap_zoom2_debugboard_detect())
		return 0;

		zoom2_init_smsc911x();
		zoom2_init_quaduart();
		return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
		}

arch/arm/mach-omap2/board-zoom2.c

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		/*
		* Copyright (C) 2009 Texas Instruments Inc.
		* Mikkel Christensen <mlc@ti.com>
		*
		* Modified from mach-omap2/board-ldp.c
		*
		* 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/kernel.h>
		#include <linux/init.h>
		#include <linux/platform_device.h>
		#include <linux/gpio.h>
		#include <linux/i2c/twl4030.h>

		#include <asm/mach-types.h>
		#include <asm/mach/arch.h>

		#include <mach/common.h>
		#include <mach/usb.h>

		#include "mmc-twl4030.h"

		static void __init omap_zoom2_init_irq(void)
		{
		omap2_init_common_hw(NULL);
		omap_init_irq();
		omap_gpio_init();
		}

		static struct omap_uart_config zoom2_uart_config __initdata = {
		.enabled_uarts = ((1 << 0) \| (1 << 1) \| (1 << 2)),
		};

		static struct omap_board_config_kernel zoom2_config[] __initdata = {
		{ OMAP_TAG_UART, &zoom2_uart_config },
		};

		static struct twl4030_gpio_platform_data zoom2_gpio_data = {
		.gpio_base = OMAP_MAX_GPIO_LINES,
		.irq_base = TWL4030_GPIO_IRQ_BASE,
		.irq_end = TWL4030_GPIO_IRQ_END,
		};

		static struct twl4030_platform_data zoom2_twldata = {
		.irq_base = TWL4030_IRQ_BASE,
		.irq_end = TWL4030_IRQ_END,

		/* platform_data for children goes here */
		.gpio = &zoom2_gpio_data,
		};

		static struct i2c_board_info __initdata zoom2_i2c_boardinfo[] = {
		{
		I2C_BOARD_INFO("twl4030", 0x48),
		.flags = I2C_CLIENT_WAKE,
		.irq = INT_34XX_SYS_NIRQ,
		.platform_data = &zoom2_twldata,
		},
		};

		static int __init omap_i2c_init(void)
		{
		omap_register_i2c_bus(1, 2600, zoom2_i2c_boardinfo,
		ARRAY_SIZE(zoom2_i2c_boardinfo));
		omap_register_i2c_bus(2, 400, NULL, 0);
		omap_register_i2c_bus(3, 400, NULL, 0);
		return 0;
		}

		static struct twl4030_hsmmc_info mmc[] __initdata = {
		{
		.mmc = 1,
		.wires = 4,
		.gpio_cd = -EINVAL,
		.gpio_wp = -EINVAL,
		},
		{} /* Terminator */
		};

		extern int __init omap_zoom2_debugboard_init(void);

		static void __init omap_zoom2_init(void)
		{
		omap_i2c_init();
		omap_board_config = zoom2_config;
		omap_board_config_size = ARRAY_SIZE(zoom2_config);
		omap_serial_init();
		omap_zoom2_debugboard_init();
		twl4030_mmc_init(mmc);
		usb_musb_init();
		}

		static void __init omap_zoom2_map_io(void)
		{
		omap2_set_globals_343x();
		omap2_map_common_io();
		}

		MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
		.phys_io = 0x48000000,
		.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
		.boot_params = 0x80000100,
		.map_io = omap_zoom2_map_io,
		.init_irq = omap_zoom2_init_irq,
		.init_machine = omap_zoom2_init,
		.timer = &omap_timer,
		MACHINE_END

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