[mirror_ubuntu-eoan-kernel.git] / arch / arm / mach-ux500 / board-mop500.c

/*
 * Copyright (C) 2008-2009 ST-Ericsson
 *
 * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.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/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl022.h>
#include <linux/spi/spi.h>

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

#include <plat/i2c.h>

#include <mach/hardware.h>
#include <mach/setup.h>
#include <mach/devices.h>

static void ab4500_spi_cs_control(u32 command)
{
	/* set the FRM signal, which is CS  - TODO */
}

struct pl022_config_chip ab4500_chip_info = {
	.lbm = LOOPBACK_DISABLED,
	.com_mode = INTERRUPT_TRANSFER,
	.iface = SSP_INTERFACE_MOTOROLA_SPI,
	/* we can act as master only */
	.hierarchy = SSP_MASTER,
	.slave_tx_disable = 0,
	.endian_rx = SSP_RX_MSB,
	.endian_tx = SSP_TX_MSB,
	.data_size = SSP_DATA_BITS_24,
	.rx_lev_trig = SSP_RX_1_OR_MORE_ELEM,
	.tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC,
	.clk_phase = SSP_CLK_SECOND_EDGE,
	.clk_pol = SSP_CLK_POL_IDLE_HIGH,
	.cs_control = ab4500_spi_cs_control,
};

static struct spi_board_info u8500_spi_devices[] = {
	{
		.modalias = "ab8500",
		.controller_data = &ab4500_chip_info,
		.max_speed_hz = 12000000,
		.bus_num = 0,
		.chip_select = 0,
		.mode = SPI_MODE_0,
		.irq = IRQ_AB4500,
	},
};

static struct pl022_ssp_controller ssp0_platform_data = {
	.bus_id = 0,
	/* pl022 not yet supports dma */
	.enable_dma = 0,
	/* on this platform, gpio 31,142,144,214 &
	 * 224 are connected as chip selects
	 */
	.num_chipselect = 5,
};

#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
static struct nmk_i2c_controller u8500_i2c##id##_data = { \
	/*				\
	 * slave data setup time, which is	\
	 * 250 ns,100ns,10ns which is 14,6,2	\
	 * respectively for a 48 Mhz	\
	 * i2c clock			\
	 */				\
	.slsu		= _slsu,	\
	/* Tx FIFO threshold */		\
	.tft		= _tft,		\
	/* Rx FIFO threshold */		\
	.rft		= _rft,		\
	/* std. mode operation */	\
	.clk_freq	= clk,		\
	.sm		= _sm,		\
}

/*
 * The board uses 4 i2c controllers, initialize all of
 * them with slave data setup time of 250 ns,
 * Tx & Rx FIFO threshold values as 1 and standard
 * mode of operation
 */
U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(2,	0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(3,	0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);

static struct amba_device *amba_devs[] __initdata = {
	&ux500_uart0_device,
	&ux500_uart1_device,
	&ux500_uart2_device,
	&u8500_ssp0_device,
};

/* add any platform devices here - TODO */
static struct platform_device *platform_devs[] __initdata = {
	&u8500_i2c0_device,
	&ux500_i2c1_device,
	&ux500_i2c2_device,
	&ux500_i2c3_device,
};

static void __init u8500_init_machine(void)
{
	int i;

	u8500_i2c0_device.dev.platform_data = &u8500_i2c0_data;
	ux500_i2c1_device.dev.platform_data = &u8500_i2c1_data;
	ux500_i2c2_device.dev.platform_data = &u8500_i2c2_data;
	ux500_i2c3_device.dev.platform_data = &u8500_i2c3_data;

	u8500_ssp0_device.dev.platform_data = &ssp0_platform_data;

	/* Register the active AMBA devices on this board */
	for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
		amba_device_register(amba_devs[i], &iomem_resource);

	platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));

	spi_register_board_info(u8500_spi_devices,
			ARRAY_SIZE(u8500_spi_devices));

	u8500_init_devices();
}

MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
	/* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
	.phys_io	= U8500_UART2_BASE,
	.io_pg_offst	= (IO_ADDRESS(U8500_UART2_BASE) >> 18) & 0xfffc,
	.boot_params	= 0x100,
	.map_io		= u8500_map_io,
	.init_irq	= ux500_init_irq,
	/* we re-use nomadik timer here */
	.timer		= &ux500_timer,
	.init_machine	= u8500_init_machine,
MACHINE_END
Commit	Line	Data
aa44ef4d SK	1	/*
	2	* Copyright (C) 2008-2009 ST-Ericsson
	3	*
	4	* Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2, as
	8	* published by the Free Software Foundation.
	9	*
	10	*/
	11	#include <linux/kernel.h>
	12	#include <linux/init.h>
	13	#include <linux/interrupt.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/io.h>
	16	#include <linux/amba/bus.h>
	17	#include <linux/amba/pl022.h>
	18	#include <linux/spi/spi.h>
	19
aa44ef4d SK	20	#include <asm/mach-types.h>
	21	#include <asm/mach/arch.h>
	22
d48a41c1	23	#include <plat/i2c.h>
aa44ef4d SK	24
	25	#include <mach/hardware.h>
	26	#include <mach/setup.h>
9e4e7fe1	27	#include <mach/devices.h>
aa44ef4d	28
aa44ef4d SK	29	static void ab4500_spi_cs_control(u32 command)
	30	{
	31	/* set the FRM signal, which is CS - TODO */
	32	}
	33
	34	struct pl022_config_chip ab4500_chip_info = {
	35	.lbm = LOOPBACK_DISABLED,
	36	.com_mode = INTERRUPT_TRANSFER,
	37	.iface = SSP_INTERFACE_MOTOROLA_SPI,
	38	/* we can act as master only */
	39	.hierarchy = SSP_MASTER,
	40	.slave_tx_disable = 0,
	41	.endian_rx = SSP_RX_MSB,
	42	.endian_tx = SSP_TX_MSB,
	43	.data_size = SSP_DATA_BITS_24,
	44	.rx_lev_trig = SSP_RX_1_OR_MORE_ELEM,
	45	.tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC,
	46	.clk_phase = SSP_CLK_SECOND_EDGE,
	47	.clk_pol = SSP_CLK_POL_IDLE_HIGH,
	48	.cs_control = ab4500_spi_cs_control,
	49	};
	50
	51	static struct spi_board_info u8500_spi_devices[] = {
	52	{
62579266	53	.modalias = "ab8500",
aa44ef4d SK	54	.controller_data = &ab4500_chip_info,
	55	.max_speed_hz = 12000000,
	56	.bus_num = 0,
	57	.chip_select = 0,
	58	.mode = SPI_MODE_0,
	59	.irq = IRQ_AB4500,
	60	},
	61	};
	62
	63	static struct pl022_ssp_controller ssp0_platform_data = {
	64	.bus_id = 0,
	65	/* pl022 not yet supports dma */
	66	.enable_dma = 0,
	67	/* on this platform, gpio 31,142,144,214 &
	68	* 224 are connected as chip selects
	69	*/
	70	.num_chipselect = 5,
	71	};
	72
d48a41c1	73	#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
f9faf237	74	static struct nmk_i2c_controller u8500_i2c##id##_data = { \
d48a41c1 SK	75	/* \
	76	* slave data setup time, which is \
	77	* 250 ns,100ns,10ns which is 14,6,2 \
	78	* respectively for a 48 Mhz \
	79	* i2c clock \
	80	*/ \
	81	.slsu = _slsu, \
	82	/* Tx FIFO threshold */ \
	83	.tft = _tft, \
	84	/* Rx FIFO threshold */ \
	85	.rft = _rft, \
	86	/* std. mode operation */ \
	87	.clk_freq = clk, \
	88	.sm = _sm, \
	89	}
	90
	91	/*
	92	* The board uses 4 i2c controllers, initialize all of
	93	* them with slave data setup time of 250 ns,
	94	* Tx & Rx FIFO threshold values as 1 and standard
	95	* mode of operation
	96	*/
	97	U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
	98	U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
	99	U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
	100	U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
	101
aa44ef4d	102	static struct amba_device *amba_devs[] __initdata = {
4b27aa41 RV	103	&ux500_uart0_device,
	104	&ux500_uart1_device,
	105	&ux500_uart2_device,
9e4e7fe1	106	&u8500_ssp0_device,
aa44ef4d SK	107	};
aa44ef4d SK	108
d48a41c1 SK	109	/* add any platform devices here - TODO */
d48a41c1 SK	110	static struct platform_device *platform_devs[] __initdata = {
f9faf237 RV	111	&u8500_i2c0_device,
	112	&ux500_i2c1_device,
	113	&ux500_i2c2_device,
	114	&ux500_i2c3_device,
d48a41c1 SK	115	};
d48a41c1 SK	116
aa44ef4d SK	117	static void __init u8500_init_machine(void)
	118	{
	119	int i;
	120
f9faf237 RV	121	u8500_i2c0_device.dev.platform_data = &u8500_i2c0_data;
	122	ux500_i2c1_device.dev.platform_data = &u8500_i2c1_data;
	123	ux500_i2c2_device.dev.platform_data = &u8500_i2c2_data;
	124	ux500_i2c3_device.dev.platform_data = &u8500_i2c3_data;
	125
9e4e7fe1 RV	126	u8500_ssp0_device.dev.platform_data = &ssp0_platform_data;
9e4e7fe1 RV	127
aa44ef4d SK	128	/* Register the active AMBA devices on this board */
	129	for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
	130	amba_device_register(amba_devs[i], &iomem_resource);
	131
d48a41c1 SK	132	platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
d48a41c1 SK	133
aa44ef4d SK	134	spi_register_board_info(u8500_spi_devices,
	135	ARRAY_SIZE(u8500_spi_devices));
	136
	137	u8500_init_devices();
	138	}
	139
	140	MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
	141	/* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
	142	.phys_io = U8500_UART2_BASE,
	143	.io_pg_offst = (IO_ADDRESS(U8500_UART2_BASE) >> 18) & 0xfffc,
	144	.boot_params = 0x100,
	145	.map_io = u8500_map_io,
178980f9	146	.init_irq = ux500_init_irq,
aa44ef4d	147	/* we re-use nomadik timer here */
41ac329f	148	.timer = &ux500_timer,
aa44ef4d SK	149	.init_machine = u8500_init_machine,
aa44ef4d SK	150	MACHINE_END