arch/arm/mach-imx/mach-mx21ads.c - maze/linux - Git at Google

 /*
  *  Copyright (C) 2000 Deep Blue Solutions Ltd
  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
  *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */

 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <mach/common.h>
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/mach/map.h>
 #include <mach/iomux-mx21.h>

 #include "devices-imx21.h"

 /*
  * Memory-mapped I/O on MX21ADS base board
  */
 #define MX21ADS_MMIO_BASE_ADDR   0xf5000000
 #define MX21ADS_MMIO_SIZE        SZ_16M

 #define MX21ADS_REG_ADDR(offset)    (void __force __iomem *) \
 		(MX21ADS_MMIO_BASE_ADDR + (offset))

 #define MX21ADS_CS8900A_IRQ         IRQ_GPIOE(11)
 #define MX21ADS_CS8900A_IOBASE_REG  MX21ADS_REG_ADDR(0x000000)
 #define MX21ADS_ST16C255_IOBASE_REG MX21ADS_REG_ADDR(0x200000)
 #define MX21ADS_VERSION_REG         MX21ADS_REG_ADDR(0x400000)
 #define MX21ADS_IO_REG              MX21ADS_REG_ADDR(0x800000)

 /* MX21ADS_IO_REG bit definitions */
 #define MX21ADS_IO_SD_WP        0x0001 /* read */
 #define MX21ADS_IO_TP6          0x0001 /* write */
 #define MX21ADS_IO_SW_SEL       0x0002 /* read */
 #define MX21ADS_IO_TP7          0x0002 /* write */
 #define MX21ADS_IO_RESET_E_UART 0x0004
 #define MX21ADS_IO_RESET_BASE   0x0008
 #define MX21ADS_IO_CSI_CTL2     0x0010
 #define MX21ADS_IO_CSI_CTL1     0x0020
 #define MX21ADS_IO_CSI_CTL0     0x0040
 #define MX21ADS_IO_UART1_EN     0x0080
 #define MX21ADS_IO_UART4_EN     0x0100
 #define MX21ADS_IO_LCDON        0x0200
 #define MX21ADS_IO_IRDA_EN      0x0400
 #define MX21ADS_IO_IRDA_FIR_SEL 0x0800
 #define MX21ADS_IO_IRDA_MD0_B   0x1000
 #define MX21ADS_IO_IRDA_MD1     0x2000
 #define MX21ADS_IO_LED4_ON      0x4000
 #define MX21ADS_IO_LED3_ON      0x8000

 static const int mx21ads_pins[] __initconst = {

 	/* CS8900A */
 	(GPIO_PORTE | GPIO_GPIO | GPIO_IN | 11),

 	/* UART1 */
 	PE12_PF_UART1_TXD,
 	PE13_PF_UART1_RXD,
 	PE14_PF_UART1_CTS,
 	PE15_PF_UART1_RTS,

 	/* UART3 (IrDA) - only TXD and RXD */
 	PE8_PF_UART3_TXD,
 	PE9_PF_UART3_RXD,

 	/* UART4 */
 	PB26_AF_UART4_RTS,
 	PB28_AF_UART4_TXD,
 	PB29_AF_UART4_CTS,
 	PB31_AF_UART4_RXD,

 	/* LCDC */
 	PA5_PF_LSCLK,
 	PA6_PF_LD0,
 	PA7_PF_LD1,
 	PA8_PF_LD2,
 	PA9_PF_LD3,
 	PA10_PF_LD4,
 	PA11_PF_LD5,
 	PA12_PF_LD6,
 	PA13_PF_LD7,
 	PA14_PF_LD8,
 	PA15_PF_LD9,
 	PA16_PF_LD10,
 	PA17_PF_LD11,
 	PA18_PF_LD12,
 	PA19_PF_LD13,
 	PA20_PF_LD14,
 	PA21_PF_LD15,
 	PA22_PF_LD16,
 	PA24_PF_REV,     /* Sharp panel dedicated signal */
 	PA25_PF_CLS,     /* Sharp panel dedicated signal */
 	PA26_PF_PS,      /* Sharp panel dedicated signal */
 	PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */
 	PA28_PF_HSYNC,
 	PA29_PF_VSYNC,
 	PA30_PF_CONTRAST,
 	PA31_PF_OE_ACD,

 	/* MMC/SDHC */
 	PE18_PF_SD1_D0,
 	PE19_PF_SD1_D1,
 	PE20_PF_SD1_D2,
 	PE21_PF_SD1_D3,
 	PE22_PF_SD1_CMD,
 	PE23_PF_SD1_CLK,

 	/* NFC */
 	PF0_PF_NRFB,
 	PF1_PF_NFCE,
 	PF2_PF_NFWP,
 	PF3_PF_NFCLE,
 	PF4_PF_NFALE,
 	PF5_PF_NFRE,
 	PF6_PF_NFWE,
 	PF7_PF_NFIO0,
 	PF8_PF_NFIO1,
 	PF9_PF_NFIO2,
 	PF10_PF_NFIO3,
 	PF11_PF_NFIO4,
 	PF12_PF_NFIO5,
 	PF13_PF_NFIO6,
 	PF14_PF_NFIO7,
 };

 /* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */
 static struct physmap_flash_data mx21ads_flash_data = {
 	.width = 4,
 };

 static struct resource mx21ads_flash_resource = {
 	.start = MX21_CS0_BASE_ADDR,
 	.end = MX21_CS0_BASE_ADDR + 0x02000000 - 1,
 	.flags = IORESOURCE_MEM,
 };

 static struct platform_device mx21ads_nor_mtd_device = {
 	.name = "physmap-flash",
 	.id = 0,
 	.dev = {
 		.platform_data = &mx21ads_flash_data,
 	},
 	.num_resources = 1,
 	.resource = &mx21ads_flash_resource,
 };

 static const struct imxuart_platform_data uart_pdata_rts __initconst = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };

 static const struct imxuart_platform_data uart_pdata_norts __initconst = {
 };

 static int mx21ads_fb_init(struct platform_device *pdev)
 {
 	u16 tmp;

 	tmp = __raw_readw(MX21ADS_IO_REG);
 	tmp |= MX21ADS_IO_LCDON;
 	__raw_writew(tmp, MX21ADS_IO_REG);
 	return 0;
 }

 static void mx21ads_fb_exit(struct platform_device *pdev)
 {
 	u16 tmp;

 	tmp = __raw_readw(MX21ADS_IO_REG);
 	tmp &= ~MX21ADS_IO_LCDON;
 	__raw_writew(tmp, MX21ADS_IO_REG);
 }

 /*
  * Connected is a portrait Sharp-QVGA display
  * of type: LQ035Q7DB02
  */
 static struct imx_fb_videomode mx21ads_modes[] = {
 	{
 		.mode = {
 			.name		= "Sharp-LQ035Q7",
 			.refresh	= 60,
 			.xres		= 240,
 			.yres		= 320,
 			.pixclock	= 188679, /* in ps (5.3MHz) */
 			.hsync_len	= 2,
 			.left_margin	= 6,
 			.right_margin	= 16,
 			.vsync_len	= 1,
 			.upper_margin	= 8,
 			.lower_margin	= 10,
 		},
 		.pcr		= 0xfb108bc7,
 		.bpp		= 16,
 	},
 };

 static const struct imx_fb_platform_data mx21ads_fb_data __initconst = {
 	.mode = mx21ads_modes,
 	.num_modes = ARRAY_SIZE(mx21ads_modes),

 	.pwmr		= 0x00a903ff,
 	.lscr1		= 0x00120300,
 	.dmacr		= 0x00020008,

 	.init = mx21ads_fb_init,
 	.exit = mx21ads_fb_exit,
 };

 static int mx21ads_sdhc_get_ro(struct device *dev)
 {
 	return (__raw_readw(MX21ADS_IO_REG) & MX21ADS_IO_SD_WP) ? 1 : 0;
 }

 static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq,
 	void *data)
 {
 	return request_irq(IRQ_GPIOD(25), detect_irq,
 		IRQF_TRIGGER_FALLING, "mmc-detect", data);
 }

 static void mx21ads_sdhc_exit(struct device *dev, void *data)
 {
 	free_irq(IRQ_GPIOD(25), data);
 }

 static const struct imxmmc_platform_data mx21ads_sdhc_pdata __initconst = {
 	.ocr_avail = MMC_VDD_29_30 | MMC_VDD_30_31, /* 3.0V */
 	.get_ro = mx21ads_sdhc_get_ro,
 	.init = mx21ads_sdhc_init,
 	.exit = mx21ads_sdhc_exit,
 };

 static const struct mxc_nand_platform_data
 mx21ads_nand_board_info __initconst = {
 	.width = 1,
 	.hw_ecc = 1,
 };

 static struct map_desc mx21ads_io_desc[] __initdata = {
 	/*
 	 * Memory-mapped I/O on MX21ADS Base board:
 	 *   - CS8900A Ethernet controller
 	 *   - ST16C2552CJ UART
 	 *   - CPU and Base board version
 	 *   - Base board I/O register
 	 */
 	{
 		.virtual = MX21ADS_MMIO_BASE_ADDR,
 		.pfn = __phys_to_pfn(MX21_CS1_BASE_ADDR),
 		.length = MX21ADS_MMIO_SIZE,
 		.type = MT_DEVICE,
 	},
 };

 static void __init mx21ads_map_io(void)
 {
 	mx21_map_io();
 	iotable_init(mx21ads_io_desc, ARRAY_SIZE(mx21ads_io_desc));
 }

 static struct platform_device *platform_devices[] __initdata = {
 	&mx21ads_nor_mtd_device,
 };

 static void __init mx21ads_board_init(void)
 {
 	imx21_soc_init();

 	mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins),
 			"mx21ads");

 	imx21_add_imx_uart0(&uart_pdata_rts);
 	imx21_add_imx_uart2(&uart_pdata_norts);
 	imx21_add_imx_uart3(&uart_pdata_rts);
 	imx21_add_imx_fb(&mx21ads_fb_data);
 	imx21_add_mxc_mmc(0, &mx21ads_sdhc_pdata);
 	imx21_add_mxc_nand(&mx21ads_nand_board_info);

 	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 }

 static void __init mx21ads_timer_init(void)
 {
 	mx21_clocks_init(32768, 26000000);
 }

 static struct sys_timer mx21ads_timer = {
 	.init	= mx21ads_timer_init,
 };

 MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
 	/* maintainer: Freescale Semiconductor, Inc. */
 	.boot_params = MX21_PHYS_OFFSET + 0x100,
 	.map_io = mx21ads_map_io,
 	.init_early = imx21_init_early,
 	.init_irq = mx21_init_irq,
 	.handle_irq = imx21_handle_irq,
 	.timer = &mx21ads_timer,
 	.init_machine = mx21ads_board_init,
 MACHINE_END
	/*
	* Copyright (C) 2000 Deep Blue Solutions Ltd
	* Copyright (C) 2002 Shane Nay (shane@minirl.com)
	* Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/

	#include <linux/platform_device.h>
	#include <linux/mtd/mtd.h>
	#include <linux/mtd/physmap.h>
	#include <linux/gpio.h>
	#include <mach/common.h>
	#include <mach/hardware.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/time.h>
	#include <asm/mach/map.h>
	#include <mach/iomux-mx21.h>

	#include "devices-imx21.h"

	/*
	* Memory-mapped I/O on MX21ADS base board
	*/
	#define MX21ADS_MMIO_BASE_ADDR 0xf5000000
	#define MX21ADS_MMIO_SIZE SZ_16M

	#define MX21ADS_REG_ADDR(offset) (void __force __iomem *) \
	(MX21ADS_MMIO_BASE_ADDR + (offset))

	#define MX21ADS_CS8900A_IRQ IRQ_GPIOE(11)
	#define MX21ADS_CS8900A_IOBASE_REG MX21ADS_REG_ADDR(0x000000)
	#define MX21ADS_ST16C255_IOBASE_REG MX21ADS_REG_ADDR(0x200000)
	#define MX21ADS_VERSION_REG MX21ADS_REG_ADDR(0x400000)
	#define MX21ADS_IO_REG MX21ADS_REG_ADDR(0x800000)

	/* MX21ADS_IO_REG bit definitions */
	#define MX21ADS_IO_SD_WP 0x0001 /* read */
	#define MX21ADS_IO_TP6 0x0001 /* write */
	#define MX21ADS_IO_SW_SEL 0x0002 /* read */
	#define MX21ADS_IO_TP7 0x0002 /* write */
	#define MX21ADS_IO_RESET_E_UART 0x0004
	#define MX21ADS_IO_RESET_BASE 0x0008
	#define MX21ADS_IO_CSI_CTL2 0x0010
	#define MX21ADS_IO_CSI_CTL1 0x0020
	#define MX21ADS_IO_CSI_CTL0 0x0040
	#define MX21ADS_IO_UART1_EN 0x0080
	#define MX21ADS_IO_UART4_EN 0x0100
	#define MX21ADS_IO_LCDON 0x0200
	#define MX21ADS_IO_IRDA_EN 0x0400
	#define MX21ADS_IO_IRDA_FIR_SEL 0x0800
	#define MX21ADS_IO_IRDA_MD0_B 0x1000
	#define MX21ADS_IO_IRDA_MD1 0x2000
	#define MX21ADS_IO_LED4_ON 0x4000
	#define MX21ADS_IO_LED3_ON 0x8000

	static const int mx21ads_pins[] __initconst = {

	/* CS8900A */
	(GPIO_PORTE \| GPIO_GPIO \| GPIO_IN \| 11),

	/* UART1 */
	PE12_PF_UART1_TXD,
	PE13_PF_UART1_RXD,
	PE14_PF_UART1_CTS,
	PE15_PF_UART1_RTS,

	/* UART3 (IrDA) - only TXD and RXD */
	PE8_PF_UART3_TXD,
	PE9_PF_UART3_RXD,

	/* UART4 */
	PB26_AF_UART4_RTS,
	PB28_AF_UART4_TXD,
	PB29_AF_UART4_CTS,
	PB31_AF_UART4_RXD,

	/* LCDC */
	PA5_PF_LSCLK,
	PA6_PF_LD0,
	PA7_PF_LD1,
	PA8_PF_LD2,
	PA9_PF_LD3,
	PA10_PF_LD4,
	PA11_PF_LD5,
	PA12_PF_LD6,
	PA13_PF_LD7,
	PA14_PF_LD8,
	PA15_PF_LD9,
	PA16_PF_LD10,
	PA17_PF_LD11,
	PA18_PF_LD12,
	PA19_PF_LD13,
	PA20_PF_LD14,
	PA21_PF_LD15,
	PA22_PF_LD16,
	PA24_PF_REV, /* Sharp panel dedicated signal */
	PA25_PF_CLS, /* Sharp panel dedicated signal */
	PA26_PF_PS, /* Sharp panel dedicated signal */
	PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */
	PA28_PF_HSYNC,
	PA29_PF_VSYNC,
	PA30_PF_CONTRAST,
	PA31_PF_OE_ACD,

	/* MMC/SDHC */
	PE18_PF_SD1_D0,
	PE19_PF_SD1_D1,
	PE20_PF_SD1_D2,
	PE21_PF_SD1_D3,
	PE22_PF_SD1_CMD,
	PE23_PF_SD1_CLK,

	/* NFC */
	PF0_PF_NRFB,
	PF1_PF_NFCE,
	PF2_PF_NFWP,
	PF3_PF_NFCLE,
	PF4_PF_NFALE,
	PF5_PF_NFRE,
	PF6_PF_NFWE,
	PF7_PF_NFIO0,
	PF8_PF_NFIO1,
	PF9_PF_NFIO2,
	PF10_PF_NFIO3,
	PF11_PF_NFIO4,
	PF12_PF_NFIO5,
	PF13_PF_NFIO6,
	PF14_PF_NFIO7,
	};

	/* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */
	static struct physmap_flash_data mx21ads_flash_data = {
	.width = 4,
	};

	static struct resource mx21ads_flash_resource = {
	.start = MX21_CS0_BASE_ADDR,
	.end = MX21_CS0_BASE_ADDR + 0x02000000 - 1,
	.flags = IORESOURCE_MEM,
	};

	static struct platform_device mx21ads_nor_mtd_device = {
	.name = "physmap-flash",
	.id = 0,
	.dev = {
	.platform_data = &mx21ads_flash_data,
	},
	.num_resources = 1,
	.resource = &mx21ads_flash_resource,
	};

	static const struct imxuart_platform_data uart_pdata_rts __initconst = {
	.flags = IMXUART_HAVE_RTSCTS,
	};

	static const struct imxuart_platform_data uart_pdata_norts __initconst = {
	};

	static int mx21ads_fb_init(struct platform_device *pdev)
	{
	u16 tmp;

	tmp = __raw_readw(MX21ADS_IO_REG);
	tmp \|= MX21ADS_IO_LCDON;
	__raw_writew(tmp, MX21ADS_IO_REG);
	return 0;
	}

	static void mx21ads_fb_exit(struct platform_device *pdev)
	{
	u16 tmp;

	tmp = __raw_readw(MX21ADS_IO_REG);
	tmp &= ~MX21ADS_IO_LCDON;
	__raw_writew(tmp, MX21ADS_IO_REG);
	}

	/*
	* Connected is a portrait Sharp-QVGA display
	* of type: LQ035Q7DB02
	*/
	static struct imx_fb_videomode mx21ads_modes[] = {
	{
	.mode = {
	.name = "Sharp-LQ035Q7",
	.refresh = 60,
	.xres = 240,
	.yres = 320,
	.pixclock = 188679, /* in ps (5.3MHz) */
	.hsync_len = 2,
	.left_margin = 6,
	.right_margin = 16,
	.vsync_len = 1,
	.upper_margin = 8,
	.lower_margin = 10,
	},
	.pcr = 0xfb108bc7,
	.bpp = 16,
	},
	};

	static const struct imx_fb_platform_data mx21ads_fb_data __initconst = {
	.mode = mx21ads_modes,
	.num_modes = ARRAY_SIZE(mx21ads_modes),

	.pwmr = 0x00a903ff,
	.lscr1 = 0x00120300,
	.dmacr = 0x00020008,

	.init = mx21ads_fb_init,
	.exit = mx21ads_fb_exit,
	};

	static int mx21ads_sdhc_get_ro(struct device *dev)
	{
	return (__raw_readw(MX21ADS_IO_REG) & MX21ADS_IO_SD_WP) ? 1 : 0;
	}

	static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq,
	void *data)
	{
	return request_irq(IRQ_GPIOD(25), detect_irq,
	IRQF_TRIGGER_FALLING, "mmc-detect", data);
	}

	static void mx21ads_sdhc_exit(struct device dev, void data)
	{
	free_irq(IRQ_GPIOD(25), data);
	}

	static const struct imxmmc_platform_data mx21ads_sdhc_pdata __initconst = {
	.ocr_avail = MMC_VDD_29_30 \| MMC_VDD_30_31, /* 3.0V */
	.get_ro = mx21ads_sdhc_get_ro,
	.init = mx21ads_sdhc_init,
	.exit = mx21ads_sdhc_exit,
	};

	static const struct mxc_nand_platform_data
	mx21ads_nand_board_info __initconst = {
	.width = 1,
	.hw_ecc = 1,
	};

	static struct map_desc mx21ads_io_desc[] __initdata = {
	/*
	* Memory-mapped I/O on MX21ADS Base board:
	* - CS8900A Ethernet controller
	* - ST16C2552CJ UART
	* - CPU and Base board version
	* - Base board I/O register
	*/
	{
	.virtual = MX21ADS_MMIO_BASE_ADDR,
	.pfn = __phys_to_pfn(MX21_CS1_BASE_ADDR),
	.length = MX21ADS_MMIO_SIZE,
	.type = MT_DEVICE,
	},
	};

	static void __init mx21ads_map_io(void)
	{
	mx21_map_io();
	iotable_init(mx21ads_io_desc, ARRAY_SIZE(mx21ads_io_desc));
	}

	static struct platform_device *platform_devices[] __initdata = {
	&mx21ads_nor_mtd_device,
	};

	static void __init mx21ads_board_init(void)
	{
	imx21_soc_init();

	mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins),
	"mx21ads");

	imx21_add_imx_uart0(&uart_pdata_rts);
	imx21_add_imx_uart2(&uart_pdata_norts);
	imx21_add_imx_uart3(&uart_pdata_rts);
	imx21_add_imx_fb(&mx21ads_fb_data);
	imx21_add_mxc_mmc(0, &mx21ads_sdhc_pdata);
	imx21_add_mxc_nand(&mx21ads_nand_board_info);

	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
	}

	static void __init mx21ads_timer_init(void)
	{
	mx21_clocks_init(32768, 26000000);
	}

	static struct sys_timer mx21ads_timer = {
	.init = mx21ads_timer_init,
	};

	MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
	/* maintainer: Freescale Semiconductor, Inc. */
	.boot_params = MX21_PHYS_OFFSET + 0x100,
	.map_io = mx21ads_map_io,
	.init_early = imx21_init_early,
	.init_irq = mx21_init_irq,
	.handle_irq = imx21_handle_irq,
	.timer = &mx21ads_timer,
	.init_machine = mx21ads_board_init,
	MACHINE_END