[deliverable/linux.git] / arch / arm / mach-pxa / icontrol.c

/*
 * linux/arch/arm/mach-pxa/icontrol.c
 *
 * Support for the iControl and SafeTcam platforms from TMT Services
 * using the Embedian MXM-8x10 Computer on Module
 *
 * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
 *
 * 2010-01-21 Hennie van der Merve <hvdmerwe@tmtservies.co.za>
 *
 * 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/irq.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>

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

#include <mach/pxa320.h>
#include <mach/mxm8x10.h>

#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/can/platform/mcp251x.h>
#include <linux/regulator/machine.h>

#include "generic.h"

#define ICONTROL_MCP251x_nCS1	(15)
#define ICONTROL_MCP251x_nCS2	(16)
#define ICONTROL_MCP251x_nCS3	(17)
#define ICONTROL_MCP251x_nCS4	(24)

#define ICONTROL_MCP251x_nIRQ1	(74)
#define ICONTROL_MCP251x_nIRQ2	(75)
#define ICONTROL_MCP251x_nIRQ3	(76)
#define ICONTROL_MCP251x_nIRQ4	(77)

static struct pxa2xx_spi_chip mcp251x_chip_info1 = {
	.tx_threshold   = 8,
	.rx_threshold   = 128,
	.dma_burst_size = 8,
	.timeout        = 235,
	.gpio_cs        = ICONTROL_MCP251x_nCS1
};

static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
	.tx_threshold   = 8,
	.rx_threshold   = 128,
	.dma_burst_size = 8,
	.timeout        = 235,
	.gpio_cs        = ICONTROL_MCP251x_nCS2
};

static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
	.tx_threshold   = 8,
	.rx_threshold   = 128,
	.dma_burst_size = 8,
	.timeout        = 235,
	.gpio_cs        = ICONTROL_MCP251x_nCS3
};

static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
	.tx_threshold   = 8,
	.rx_threshold   = 128,
	.dma_burst_size = 8,
	.timeout        = 235,
	.gpio_cs        = ICONTROL_MCP251x_nCS4
};

static struct mcp251x_platform_data mcp251x_info = {
	.oscillator_frequency = 16E6,
};

static struct spi_board_info mcp251x_board_info[] = {
	{
		.modalias        = "mcp2515",
		.max_speed_hz    = 6500000,
		.bus_num         = 3,
		.chip_select     = 0,
		.platform_data   = &mcp251x_info,
		.controller_data = &mcp251x_chip_info1,
		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
	},
	{
		.modalias        = "mcp2515",
		.max_speed_hz    = 6500000,
		.bus_num         = 3,
		.chip_select     = 1,
		.platform_data   = &mcp251x_info,
		.controller_data = &mcp251x_chip_info2,
		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
	},
	{
		.modalias        = "mcp2515",
		.max_speed_hz    = 6500000,
		.bus_num         = 4,
		.chip_select     = 0,
		.platform_data   = &mcp251x_info,
		.controller_data = &mcp251x_chip_info3,
		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
	},
	{
		.modalias        = "mcp2515",
		.max_speed_hz    = 6500000,
		.bus_num         = 4,
		.chip_select     = 1,
		.platform_data   = &mcp251x_info,
		.controller_data = &mcp251x_chip_info4,
		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
	}
};

static struct pxa2xx_spi_master pxa_ssp3_spi_master_info = {
	.clock_enable   = CKEN_SSP3,
	.num_chipselect = 2,
	.enable_dma     = 1
};

static struct pxa2xx_spi_master pxa_ssp4_spi_master_info = {
	.clock_enable   = CKEN_SSP4,
	.num_chipselect = 2,
	.enable_dma     = 1
};

struct platform_device pxa_spi_ssp3 = {
	.name          = "pxa2xx-spi",
	.id            = 3,
	.dev           = {
		.platform_data = &pxa_ssp3_spi_master_info,
	}
};

struct platform_device pxa_spi_ssp4 = {
	.name          = "pxa2xx-spi",
	.id            = 4,
	.dev           = {
		.platform_data = &pxa_ssp4_spi_master_info,
	}
};

static struct platform_device *icontrol_spi_devices[] __initdata = {
	&pxa_spi_ssp3,
	&pxa_spi_ssp4,
};

static mfp_cfg_t mfp_can_cfg[] __initdata = {
	/* CAN CS lines */
	GPIO15_GPIO,
	GPIO16_GPIO,
	GPIO17_GPIO,
	GPIO24_GPIO,

	/* SPI (SSP3) lines */
	GPIO89_SSP3_SCLK,
	GPIO91_SSP3_TXD,
	GPIO92_SSP3_RXD,

	/* SPI (SSP4) lines */
	GPIO93_SSP4_SCLK,
	GPIO95_SSP4_TXD,
	GPIO96_SSP4_RXD,

	/* CAN nIRQ lines */
	GPIO74_GPIO | MFP_LPM_EDGE_RISE,
	GPIO75_GPIO | MFP_LPM_EDGE_RISE,
	GPIO76_GPIO | MFP_LPM_EDGE_RISE,
	GPIO77_GPIO | MFP_LPM_EDGE_RISE
};

static void __init icontrol_can_init(void)
{
	pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
	platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
	spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
}

static void __init icontrol_init(void)
{
	mxm_8x10_barebones_init();
	mxm_8x10_usb_host_init();
	mxm_8x10_mmc_init();

	icontrol_can_init();

	regulator_has_full_constraints();
}

MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
	.atag_offset	= 0x100,
	.map_io		= pxa3xx_map_io,
	.nr_irqs	= PXA_NR_IRQS,
	.init_irq	= pxa3xx_init_irq,
	.handle_irq	= pxa3xx_handle_irq,
	.init_time	= pxa_timer_init,
	.init_machine	= icontrol_init,
	.restart	= pxa_restart,
MACHINE_END
Commit	Line	Data
1f3b536b EP	1	/*
	2	* linux/arch/arm/mach-pxa/icontrol.c
	3	*
	4	* Support for the iControl and SafeTcam platforms from TMT Services
	5	* using the Embedian MXM-8x10 Computer on Module
	6	*
	7	* Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
	8	*
	9	* 2010-01-21 Hennie van der Merve <hvdmerwe@tmtservies.co.za>
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*/
	15
	16	#include <linux/irq.h>
	17	#include <linux/platform_device.h>
	18	#include <linux/gpio.h>
	19
	20	#include <asm/mach-types.h>
	21	#include <asm/mach/arch.h>
	22
	23	#include <mach/pxa320.h>
	24	#include <mach/mxm8x10.h>
	25
	26	#include <linux/spi/spi.h>
8348c259	27	#include <linux/spi/pxa2xx_spi.h>
1f3b536b	28	#include <linux/can/platform/mcp251x.h>
a927ef89	29	#include <linux/regulator/machine.h>
1f3b536b EP	30
	31	#include "generic.h"
	32
	33	#define ICONTROL_MCP251x_nCS1 (15)
	34	#define ICONTROL_MCP251x_nCS2 (16)
	35	#define ICONTROL_MCP251x_nCS3 (17)
	36	#define ICONTROL_MCP251x_nCS4 (24)
	37
	38	#define ICONTROL_MCP251x_nIRQ1 (74)
	39	#define ICONTROL_MCP251x_nIRQ2 (75)
	40	#define ICONTROL_MCP251x_nIRQ3 (76)
	41	#define ICONTROL_MCP251x_nIRQ4 (77)
	42
	43	static struct pxa2xx_spi_chip mcp251x_chip_info1 = {
	44	.tx_threshold = 8,
	45	.rx_threshold = 128,
	46	.dma_burst_size = 8,
	47	.timeout = 235,
	48	.gpio_cs = ICONTROL_MCP251x_nCS1
	49	};
	50
	51	static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
	52	.tx_threshold = 8,
	53	.rx_threshold = 128,
	54	.dma_burst_size = 8,
	55	.timeout = 235,
	56	.gpio_cs = ICONTROL_MCP251x_nCS2
	57	};
	58
	59	static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
	60	.tx_threshold = 8,
	61	.rx_threshold = 128,
	62	.dma_burst_size = 8,
	63	.timeout = 235,
	64	.gpio_cs = ICONTROL_MCP251x_nCS3
	65	};
	66
	67	static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
	68	.tx_threshold = 8,
	69	.rx_threshold = 128,
	70	.dma_burst_size = 8,
	71	.timeout = 235,
	72	.gpio_cs = ICONTROL_MCP251x_nCS4
	73	};
	74
	75	static struct mcp251x_platform_data mcp251x_info = {
	76	.oscillator_frequency = 16E6,
1f3b536b EP	77	};
	78
	79	static struct spi_board_info mcp251x_board_info[] = {
	80	{
e446630c	81	.modalias = "mcp2515",
1f3b536b EP	82	.max_speed_hz = 6500000,
	83	.bus_num = 3,
	84	.chip_select = 0,
	85	.platform_data = &mcp251x_info,
	86	.controller_data = &mcp251x_chip_info1,
4929f5a8	87	.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
1f3b536b EP	88	},
1f3b536b EP	89	{
e446630c	90	.modalias = "mcp2515",
1f3b536b EP	91	.max_speed_hz = 6500000,
	92	.bus_num = 3,
	93	.chip_select = 1,
	94	.platform_data = &mcp251x_info,
	95	.controller_data = &mcp251x_chip_info2,
4929f5a8	96	.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
1f3b536b EP	97	},
1f3b536b EP	98	{
e446630c	99	.modalias = "mcp2515",
1f3b536b EP	100	.max_speed_hz = 6500000,
	101	.bus_num = 4,
	102	.chip_select = 0,
	103	.platform_data = &mcp251x_info,
	104	.controller_data = &mcp251x_chip_info3,
4929f5a8	105	.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
1f3b536b EP	106	},
1f3b536b EP	107	{
e446630c	108	.modalias = "mcp2515",
1f3b536b EP	109	.max_speed_hz = 6500000,
	110	.bus_num = 4,
	111	.chip_select = 1,
	112	.platform_data = &mcp251x_info,
	113	.controller_data = &mcp251x_chip_info4,
4929f5a8	114	.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
1f3b536b EP	115	}
	116	};
	117
	118	static struct pxa2xx_spi_master pxa_ssp3_spi_master_info = {
	119	.clock_enable = CKEN_SSP3,
	120	.num_chipselect = 2,
	121	.enable_dma = 1
	122	};
	123
	124	static struct pxa2xx_spi_master pxa_ssp4_spi_master_info = {
	125	.clock_enable = CKEN_SSP4,
	126	.num_chipselect = 2,
	127	.enable_dma = 1
	128	};
	129
	130	struct platform_device pxa_spi_ssp3 = {
	131	.name = "pxa2xx-spi",
	132	.id = 3,
	133	.dev = {
	134	.platform_data = &pxa_ssp3_spi_master_info,
	135	}
	136	};
	137
	138	struct platform_device pxa_spi_ssp4 = {
	139	.name = "pxa2xx-spi",
	140	.id = 4,
	141	.dev = {
	142	.platform_data = &pxa_ssp4_spi_master_info,
	143	}
	144	};
	145
	146	static struct platform_device *icontrol_spi_devices[] __initdata = {
	147	&pxa_spi_ssp3,
	148	&pxa_spi_ssp4,
	149	};
	150
	151	static mfp_cfg_t mfp_can_cfg[] __initdata = {
	152	/* CAN CS lines */
	153	GPIO15_GPIO,
	154	GPIO16_GPIO,
	155	GPIO17_GPIO,
	156	GPIO24_GPIO,
	157
	158	/* SPI (SSP3) lines */
	159	GPIO89_SSP3_SCLK,
	160	GPIO91_SSP3_TXD,
	161	GPIO92_SSP3_RXD,
	162
	163	/* SPI (SSP4) lines */
	164	GPIO93_SSP4_SCLK,
	165	GPIO95_SSP4_TXD,
	166	GPIO96_SSP4_RXD,
	167
	168	/* CAN nIRQ lines */
	169	GPIO74_GPIO \| MFP_LPM_EDGE_RISE,
	170	GPIO75_GPIO \| MFP_LPM_EDGE_RISE,
	171	GPIO76_GPIO \| MFP_LPM_EDGE_RISE,
	172	GPIO77_GPIO \| MFP_LPM_EDGE_RISE
	173	};
	174
	175	static void __init icontrol_can_init(void)
	176	{
	177	pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
	178	platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
179	spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
180	}
181
182	static void __init icontrol_init(void)
183	{
184	mxm_8x10_barebones_init();
185	mxm_8x10_usb_host_init();
186	mxm_8x10_mmc_init();
187
188	icontrol_can_init();
a927ef89 RJ	189
a927ef89 RJ	190	regulator_has_full_constraints();
1f3b536b EP	191	}
	192
	193	MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
7375aba6	194	.atag_offset = 0x100,
851982c1	195	.map_io = pxa3xx_map_io,
4e611091	196	.nr_irqs = PXA_NR_IRQS,
1f3b536b	197	.init_irq = pxa3xx_init_irq,
8a97ae2f	198	.handle_irq = pxa3xx_handle_irq,
6bb27d73	199	.init_time = pxa_timer_init,
271a74fc RK	200	.init_machine = icontrol_init,
271a74fc RK	201	.restart = pxa_restart,
1f3b536b	202	MACHINE_END