arch/arm/mach-shmobile/board-ap4evb.c - kernel/skids - Git at Google

 /*
  * AP4EVB board support
  *
  * Copyright (C) 2010  Magnus Damm
  * Copyright (C) 2008  Yoshihiro Shimoda
  *
  * 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; version 2 of the License.
  *
  * 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.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
 #include <mach/common.h>
 #include <mach/sh7372.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>

 /*
  * Address	Interface		BusWidth	note
  * ------------------------------------------------------------------
  * 0x0000_0000	NOR Flash ROM (MCP)	16bit		SW7 : bit1 = ON
  * 0x0800_0000	user area		-
  * 0x1000_0000	NOR Flash ROM (MCP)	16bit		SW7 : bit1 = OFF
  * 0x1400_0000	Ether (LAN9220)		16bit
  * 0x1600_0000	user area		-		cannot use with NAND
  * 0x1800_0000	user area		-
  * 0x1A00_0000	-
  * 0x4000_0000	LPDDR2-SDRAM (POP)	32bit
  */

 /*
  * NOR Flash ROM
  *
  *  SW1  |     SW2    | SW7  | NOR Flash ROM
  *  bit1 | bit1  bit2 | bit1 | Memory allocation
  * ------+------------+------+------------------
  *  OFF  | ON     OFF | ON   |    Area 0
  *  OFF  | ON     OFF | OFF  |    Area 4
  */

 /*
  * NAND Flash ROM
  *
  *  SW1  |     SW2    | SW7  | NAND Flash ROM
  *  bit1 | bit1  bit2 | bit2 | Memory allocation
  * ------+------------+------+------------------
  *  OFF  | ON     OFF | ON   |    FCE 0
  *  OFF  | ON     OFF | OFF  |    FCE 1
  */

 /*
  * SMSC 9220
  *
  *  SW1		SMSC 9220
  * -----------------------
  *  ON		access disable
  *  OFF		access enable
  */

 /*
  * KEYSC
  *
  * SW43		KEYSC
  * -------------------------
  * ON		enable
  * OFF		disable
  */

 /* MTD */
 static struct mtd_partition nor_flash_partitions[] = {
 	{
 		.name		= "loader",
 		.offset		= 0x00000000,
 		.size		= 512 * 1024,
 	},
 	{
 		.name		= "bootenv",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= 512 * 1024,
 	},
 	{
 		.name		= "kernel_ro",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= 8 * 1024 * 1024,
 		.mask_flags	= MTD_WRITEABLE,
 	},
 	{
 		.name		= "kernel",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= 8 * 1024 * 1024,
 	},
 	{
 		.name		= "data",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= MTDPART_SIZ_FULL,
 	},
 };

 static struct physmap_flash_data nor_flash_data = {
 	.width		= 2,
 	.parts		= nor_flash_partitions,
 	.nr_parts	= ARRAY_SIZE(nor_flash_partitions),
 };

 static struct resource nor_flash_resources[] = {
 	[0]	= {
 		.start	= 0x00000000,
 		.end	= 0x08000000 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };

 static struct platform_device nor_flash_device = {
 	.name		= "physmap-flash",
 	.dev		= {
 		.platform_data	= &nor_flash_data,
 	},
 	.num_resources	= ARRAY_SIZE(nor_flash_resources),
 	.resource	= nor_flash_resources,
 };

 /* SMSC 9220 */
 static struct resource smc911x_resources[] = {
 	{
 		.start	= 0x14000000,
 		.end	= 0x16000000 - 1,
 		.flags	= IORESOURCE_MEM,
 	}, {
 		.start	= 6,
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 	},
 };

 static struct smsc911x_platform_config smsc911x_info = {
 	.flags		= SMSC911X_USE_16BIT | SMSC911X_SAVE_MAC_ADDRESS,
 	.irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 	.irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 };

 static struct platform_device smc911x_device = {
 	.name           = "smsc911x",
 	.id             = -1,
 	.num_resources  = ARRAY_SIZE(smc911x_resources),
 	.resource       = smc911x_resources,
 	.dev            = {
 		.platform_data = &smsc911x_info,
 	},
 };

 /* KEYSC (Needs SW43 set to ON) */
 static struct sh_keysc_info keysc_info = {
 	.mode		= SH_KEYSC_MODE_1,
 	.scan_timing	= 3,
 	.delay		= 2500,
 	.keycodes = {
 		KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
 		KEY_5, KEY_6, KEY_7, KEY_8, KEY_9,
 		KEY_A, KEY_B, KEY_C, KEY_D, KEY_E,
 		KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
 		KEY_K, KEY_L, KEY_M, KEY_N, KEY_O,
 	},
 };

 static struct resource keysc_resources[] = {
 	[0] = {
 		.name	= "KEYSC",
 		.start  = 0xe61b0000,
 		.end    = 0xe61b0063,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
 		.start  = 79,
 		.flags  = IORESOURCE_IRQ,
 	},
 };

 static struct platform_device keysc_device = {
 	.name           = "sh_keysc",
 	.id             = 0, /* "keysc0" clock */
 	.num_resources  = ARRAY_SIZE(keysc_resources),
 	.resource       = keysc_resources,
 	.dev	= {
 		.platform_data	= &keysc_info,
 	},
 };

 /* SDHI0 */
 static struct resource sdhi0_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start  = 0xe6850000,
 		.end    = 0xe68501ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
 		.start  = 96,
 		.flags  = IORESOURCE_IRQ,
 	},
 };

 static struct platform_device sdhi0_device = {
 	.name           = "sh_mobile_sdhi",
 	.num_resources  = ARRAY_SIZE(sdhi0_resources),
 	.resource       = sdhi0_resources,
 	.id             = 0,
 };

 static struct platform_device *ap4evb_devices[] __initdata = {
 	&nor_flash_device,
 	&smc911x_device,
 	&keysc_device,
 	&sdhi0_device,
 };

 static struct map_desc ap4evb_io_desc[] __initdata = {
 	/* create a 1:1 entity map for 0xe6xxxxxx
 	 * used by CPGA, INTC and PFC.
 	 */
 	{
 		.virtual	= 0xe6000000,
 		.pfn		= __phys_to_pfn(0xe6000000),
 		.length		= 256 << 20,
 		.type		= MT_DEVICE_NONSHARED
 	},
 };

 static void __init ap4evb_map_io(void)
 {
 	iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));

 	/* setup early devices, clocks and console here as well */
 	sh7372_add_early_devices();
 	sh7367_clock_init(); /* use g3 clocks for now */
 	shmobile_setup_console();
 }

 static void __init ap4evb_init(void)
 {
 	sh7372_pinmux_init();

 	/* enable SCIFA0 */
 	gpio_request(GPIO_FN_SCIFA0_TXD, NULL);
 	gpio_request(GPIO_FN_SCIFA0_RXD, NULL);

 	/* enable SMSC911X */
 	gpio_request(GPIO_FN_CS5A,	NULL);
 	gpio_request(GPIO_FN_IRQ6_39,	NULL);

 	/* enable LED 1 - 4 */
 	gpio_request(GPIO_PORT185, NULL);
 	gpio_request(GPIO_PORT186, NULL);
 	gpio_request(GPIO_PORT187, NULL);
 	gpio_request(GPIO_PORT188, NULL);
 	gpio_direction_output(GPIO_PORT185, 1);
 	gpio_direction_output(GPIO_PORT186, 1);
 	gpio_direction_output(GPIO_PORT187, 1);
 	gpio_direction_output(GPIO_PORT188, 1);
 	gpio_export(GPIO_PORT185, 0);
 	gpio_export(GPIO_PORT186, 0);
 	gpio_export(GPIO_PORT187, 0);
 	gpio_export(GPIO_PORT188, 0);

 	/* enable Debug switch (S6) */
 	gpio_request(GPIO_PORT32, NULL);
 	gpio_request(GPIO_PORT33, NULL);
 	gpio_request(GPIO_PORT34, NULL);
 	gpio_request(GPIO_PORT35, NULL);
 	gpio_direction_input(GPIO_PORT32);
 	gpio_direction_input(GPIO_PORT33);
 	gpio_direction_input(GPIO_PORT34);
 	gpio_direction_input(GPIO_PORT35);
 	gpio_export(GPIO_PORT32, 0);
 	gpio_export(GPIO_PORT33, 0);
 	gpio_export(GPIO_PORT34, 0);
 	gpio_export(GPIO_PORT35, 0);

 	/* enable KEYSC */
 	gpio_request(GPIO_FN_KEYOUT0, NULL);
 	gpio_request(GPIO_FN_KEYOUT1, NULL);
 	gpio_request(GPIO_FN_KEYOUT2, NULL);
 	gpio_request(GPIO_FN_KEYOUT3, NULL);
 	gpio_request(GPIO_FN_KEYOUT4, NULL);
 	gpio_request(GPIO_FN_KEYIN0_136, NULL);
 	gpio_request(GPIO_FN_KEYIN1_135, NULL);
 	gpio_request(GPIO_FN_KEYIN2_134, NULL);
 	gpio_request(GPIO_FN_KEYIN3_133, NULL);
 	gpio_request(GPIO_FN_KEYIN4,     NULL);

 	/* SDHI0 */
 	gpio_request(GPIO_FN_SDHICD0, NULL);
 	gpio_request(GPIO_FN_SDHIWP0, NULL);
 	gpio_request(GPIO_FN_SDHICMD0, NULL);
 	gpio_request(GPIO_FN_SDHICLK0, NULL);
 	gpio_request(GPIO_FN_SDHID0_3, NULL);
 	gpio_request(GPIO_FN_SDHID0_2, NULL);
 	gpio_request(GPIO_FN_SDHID0_1, NULL);
 	gpio_request(GPIO_FN_SDHID0_0, NULL);

 	sh7372_add_standard_devices();

 	platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
 }

 MACHINE_START(AP4EVB, "ap4evb")
 	.phys_io	= 0xe6000000,
 	.io_pg_offst	= ((0xe6000000) >> 18) & 0xfffc,
 	.map_io		= ap4evb_map_io,
 	.init_irq	= sh7372_init_irq,
 	.init_machine	= ap4evb_init,
 	.timer		= &shmobile_timer,
 MACHINE_END
	/*
	* AP4EVB board support
	*
	* Copyright (C) 2010 Magnus Damm
	* Copyright (C) 2008 Yoshihiro Shimoda
	*
	* 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; version 2 of the License.
	*
	* 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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	*/
	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/interrupt.h>
	#include <linux/irq.h>
	#include <linux/platform_device.h>
	#include <linux/delay.h>
	#include <linux/mtd/mtd.h>
	#include <linux/mtd/partitions.h>
	#include <linux/mtd/physmap.h>
	#include <linux/io.h>
	#include <linux/smsc911x.h>
	#include <linux/gpio.h>
	#include <linux/input.h>
	#include <linux/input/sh_keysc.h>
	#include <mach/common.h>
	#include <mach/sh7372.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/map.h>

	/*
	* Address Interface BusWidth note
	* ------------------------------------------------------------------
	* 0x0000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = ON
	* 0x0800_0000 user area -
	* 0x1000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = OFF
	* 0x1400_0000 Ether (LAN9220) 16bit
	* 0x1600_0000 user area - cannot use with NAND
	* 0x1800_0000 user area -
	* 0x1A00_0000 -
	* 0x4000_0000 LPDDR2-SDRAM (POP) 32bit
	*/

	/*
	* NOR Flash ROM
	*
	* SW1 \| SW2 \| SW7 \| NOR Flash ROM
	* bit1 \| bit1 bit2 \| bit1 \| Memory allocation
	* ------+------------+------+------------------
	* OFF \| ON OFF \| ON \| Area 0
	* OFF \| ON OFF \| OFF \| Area 4
	*/

	/*
	* NAND Flash ROM
	*
	* SW1 \| SW2 \| SW7 \| NAND Flash ROM
	* bit1 \| bit1 bit2 \| bit2 \| Memory allocation
	* ------+------------+------+------------------
	* OFF \| ON OFF \| ON \| FCE 0
	* OFF \| ON OFF \| OFF \| FCE 1
	*/

	/*
	* SMSC 9220
	*
	* SW1 SMSC 9220
	* -----------------------
	* ON access disable
	* OFF access enable
	*/

	/*
	* KEYSC
	*
	* SW43 KEYSC
	* -------------------------
	* ON enable
	* OFF disable
	*/

	/* MTD */
	static struct mtd_partition nor_flash_partitions[] = {
	{
	.name = "loader",
	.offset = 0x00000000,
	.size = 512 * 1024,
	},
	{
	.name = "bootenv",
	.offset = MTDPART_OFS_APPEND,
	.size = 512 * 1024,
	},
	{
	.name = "kernel_ro",
	.offset = MTDPART_OFS_APPEND,
	.size = 8 * 1024 * 1024,
	.mask_flags = MTD_WRITEABLE,
	},
	{
	.name = "kernel",
	.offset = MTDPART_OFS_APPEND,
	.size = 8 * 1024 * 1024,
	},
	{
	.name = "data",
	.offset = MTDPART_OFS_APPEND,
	.size = MTDPART_SIZ_FULL,
	},
	};

	static struct physmap_flash_data nor_flash_data = {
	.width = 2,
	.parts = nor_flash_partitions,
	.nr_parts = ARRAY_SIZE(nor_flash_partitions),
	};

	static struct resource nor_flash_resources[] = {
	[0] = {
	.start = 0x00000000,
	.end = 0x08000000 - 1,
	.flags = IORESOURCE_MEM,
	}
	};

	static struct platform_device nor_flash_device = {
	.name = "physmap-flash",
	.dev = {
	.platform_data = &nor_flash_data,
	},
	.num_resources = ARRAY_SIZE(nor_flash_resources),
	.resource = nor_flash_resources,
	};

	/* SMSC 9220 */
	static struct resource smc911x_resources[] = {
	{
	.start = 0x14000000,
	.end = 0x16000000 - 1,
	.flags = IORESOURCE_MEM,
	}, {
	.start = 6,
	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_LOWLEVEL,
	},
	};

	static struct smsc911x_platform_config smsc911x_info = {
	.flags = SMSC911X_USE_16BIT \| SMSC911X_SAVE_MAC_ADDRESS,
	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
	};

	static struct platform_device smc911x_device = {
	.name = "smsc911x",
	.id = -1,
	.num_resources = ARRAY_SIZE(smc911x_resources),
	.resource = smc911x_resources,
	.dev = {
	.platform_data = &smsc911x_info,
	},
	};

	/* KEYSC (Needs SW43 set to ON) */
	static struct sh_keysc_info keysc_info = {
	.mode = SH_KEYSC_MODE_1,
	.scan_timing = 3,
	.delay = 2500,
	.keycodes = {
	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
	KEY_5, KEY_6, KEY_7, KEY_8, KEY_9,
	KEY_A, KEY_B, KEY_C, KEY_D, KEY_E,
	KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
	KEY_K, KEY_L, KEY_M, KEY_N, KEY_O,
	},
	};

	static struct resource keysc_resources[] = {
	[0] = {
	.name = "KEYSC",
	.start = 0xe61b0000,
	.end = 0xe61b0063,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = 79,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct platform_device keysc_device = {
	.name = "sh_keysc",
	.id = 0, /* "keysc0" clock */
	.num_resources = ARRAY_SIZE(keysc_resources),
	.resource = keysc_resources,
	.dev = {
	.platform_data = &keysc_info,
	},
	};

	/* SDHI0 */
	static struct resource sdhi0_resources[] = {
	[0] = {
	.name = "SDHI0",
	.start = 0xe6850000,
	.end = 0xe68501ff,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = 96,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct platform_device sdhi0_device = {
	.name = "sh_mobile_sdhi",
	.num_resources = ARRAY_SIZE(sdhi0_resources),
	.resource = sdhi0_resources,
	.id = 0,
	};

	static struct platform_device *ap4evb_devices[] __initdata = {
	&nor_flash_device,
	&smc911x_device,
	&keysc_device,
	&sdhi0_device,
	};

	static struct map_desc ap4evb_io_desc[] __initdata = {
	/* create a 1:1 entity map for 0xe6xxxxxx
	* used by CPGA, INTC and PFC.
	*/
	{
	.virtual = 0xe6000000,
	.pfn = __phys_to_pfn(0xe6000000),
	.length = 256 << 20,
	.type = MT_DEVICE_NONSHARED
	},
	};

	static void __init ap4evb_map_io(void)
	{
	iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));

	/* setup early devices, clocks and console here as well */
	sh7372_add_early_devices();
	sh7367_clock_init(); /* use g3 clocks for now */
	shmobile_setup_console();
	}

	static void __init ap4evb_init(void)
	{
	sh7372_pinmux_init();

	/* enable SCIFA0 */
	gpio_request(GPIO_FN_SCIFA0_TXD, NULL);
	gpio_request(GPIO_FN_SCIFA0_RXD, NULL);

	/* enable SMSC911X */
	gpio_request(GPIO_FN_CS5A, NULL);
	gpio_request(GPIO_FN_IRQ6_39, NULL);

	/* enable LED 1 - 4 */
	gpio_request(GPIO_PORT185, NULL);
	gpio_request(GPIO_PORT186, NULL);
	gpio_request(GPIO_PORT187, NULL);
	gpio_request(GPIO_PORT188, NULL);
	gpio_direction_output(GPIO_PORT185, 1);
	gpio_direction_output(GPIO_PORT186, 1);
	gpio_direction_output(GPIO_PORT187, 1);
	gpio_direction_output(GPIO_PORT188, 1);
	gpio_export(GPIO_PORT185, 0);
	gpio_export(GPIO_PORT186, 0);
	gpio_export(GPIO_PORT187, 0);
	gpio_export(GPIO_PORT188, 0);

	/* enable Debug switch (S6) */
	gpio_request(GPIO_PORT32, NULL);
	gpio_request(GPIO_PORT33, NULL);
	gpio_request(GPIO_PORT34, NULL);
	gpio_request(GPIO_PORT35, NULL);
	gpio_direction_input(GPIO_PORT32);
	gpio_direction_input(GPIO_PORT33);
	gpio_direction_input(GPIO_PORT34);
	gpio_direction_input(GPIO_PORT35);
	gpio_export(GPIO_PORT32, 0);
	gpio_export(GPIO_PORT33, 0);
	gpio_export(GPIO_PORT34, 0);
	gpio_export(GPIO_PORT35, 0);

	/* enable KEYSC */
	gpio_request(GPIO_FN_KEYOUT0, NULL);
	gpio_request(GPIO_FN_KEYOUT1, NULL);
	gpio_request(GPIO_FN_KEYOUT2, NULL);
	gpio_request(GPIO_FN_KEYOUT3, NULL);
	gpio_request(GPIO_FN_KEYOUT4, NULL);
	gpio_request(GPIO_FN_KEYIN0_136, NULL);
	gpio_request(GPIO_FN_KEYIN1_135, NULL);
	gpio_request(GPIO_FN_KEYIN2_134, NULL);
	gpio_request(GPIO_FN_KEYIN3_133, NULL);
	gpio_request(GPIO_FN_KEYIN4, NULL);

	/* SDHI0 */
	gpio_request(GPIO_FN_SDHICD0, NULL);
	gpio_request(GPIO_FN_SDHIWP0, NULL);
	gpio_request(GPIO_FN_SDHICMD0, NULL);
	gpio_request(GPIO_FN_SDHICLK0, NULL);
	gpio_request(GPIO_FN_SDHID0_3, NULL);
	gpio_request(GPIO_FN_SDHID0_2, NULL);
	gpio_request(GPIO_FN_SDHID0_1, NULL);
	gpio_request(GPIO_FN_SDHID0_0, NULL);

	sh7372_add_standard_devices();

	platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
	}

	MACHINE_START(AP4EVB, "ap4evb")
	.phys_io = 0xe6000000,
	.io_pg_offst = ((0xe6000000) >> 18) & 0xfffc,
	.map_io = ap4evb_map_io,
	.init_irq = sh7372_init_irq,
	.init_machine = ap4evb_init,
	.timer = &shmobile_timer,
	MACHINE_END