[mirror_ubuntu-eoan-kernel.git] / arch / arm / mach-ep93xx / simone.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * arch/arm/mach-ep93xx/simone.c
 * Simplemachines Sim.One support.
 *
 * Copyright (C) 2010 Ryan Mallon
 *
 * Based on the 2.6.24.7 support:
 *   Copyright (C) 2009 Simplemachines
 *   MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/mmc/host.h>
#include <linux/spi/spi.h>
#include <linux/spi/mmc_spi.h>
#include <linux/platform_data/video-ep93xx.h>
#include <linux/platform_data/spi-ep93xx.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>

#include "hardware.h"
#include "gpio-ep93xx.h"

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

#include "soc.h"

static struct ep93xx_eth_data __initdata simone_eth_data = {
	.phy_id		= 1,
};

static struct ep93xxfb_mach_info __initdata simone_fb_info = {
	.flags		= EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
};

static struct mmc_spi_platform_data simone_mmc_spi_data = {
	.detect_delay	= 500,
	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
};

static struct gpiod_lookup_table simone_mmc_spi_gpio_table = {
	.dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */
	.table = {
		/* Card detect */
		GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW),
		{ },
	},
};

static struct spi_board_info simone_spi_devices[] __initdata = {
	{
		.modalias		= "mmc_spi",
		.platform_data		= &simone_mmc_spi_data,
		/*
		 * We use 10 MHz even though the maximum is 3.7 MHz. The driver
		 * will limit it automatically to max. frequency.
		 */
		.max_speed_hz		= 10 * 1000 * 1000,
		.bus_num		= 0,
		.chip_select		= 0,
		.mode			= SPI_MODE_3,
	},
};

/*
 * Up to v1.3, the Sim.One used SFRMOUT as SD card chip select, but this goes
 * low between multi-message command blocks. From v1.4, it uses a GPIO instead.
 * v1.3 parts will still work, since the signal on SFRMOUT is automatic.
 */
static struct gpiod_lookup_table simone_spi_cs_gpio_table = {
	.dev_id = "ep93xx-spi.0",
	.table = {
		GPIO_LOOKUP("A", 1, "cs", GPIO_ACTIVE_LOW),
		{ },
	},
};

static struct ep93xx_spi_info simone_spi_info __initdata = {
	.use_dma = 1,
};

static struct i2c_board_info __initdata simone_i2c_board_info[] = {
	{
		I2C_BOARD_INFO("ds1337", 0x68),
	},
};

static struct platform_device simone_audio_device = {
	.name		= "simone-audio",
	.id		= -1,
};

static void __init simone_register_audio(void)
{
	ep93xx_register_ac97();
	platform_device_register(&simone_audio_device);
}

static void __init simone_init_machine(void)
{
	ep93xx_init_devices();
	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
	ep93xx_register_eth(&simone_eth_data, 1);
	ep93xx_register_fb(&simone_fb_info);
	ep93xx_register_i2c(simone_i2c_board_info,
			    ARRAY_SIZE(simone_i2c_board_info));
	gpiod_add_lookup_table(&simone_mmc_spi_gpio_table);
	gpiod_add_lookup_table(&simone_spi_cs_gpio_table);
	ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
			    ARRAY_SIZE(simone_spi_devices));
	simone_register_audio();
}

MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board")
	/* Maintainer: Ryan Mallon */
	.atag_offset	= 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= simone_init_machine,
	.init_late	= ep93xx_init_late,
	.restart	= ep93xx_restart,
MACHINE_END
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
a3662f6b RM	2	/*
	3	* arch/arm/mach-ep93xx/simone.c
	4	* Simplemachines Sim.One support.
	5	*
1c5454ee	6	* Copyright (C) 2010 Ryan Mallon
a3662f6b RM	7	*
	8	* Based on the 2.6.24.7 support:
	9	* Copyright (C) 2009 Simplemachines
	10	* MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007
a3662f6b RM	11	*/
	12
	13	#include <linux/kernel.h>
	14	#include <linux/init.h>
	15	#include <linux/platform_device.h>
a3662f6b	16	#include <linux/i2c.h>
d50bfa47 MW	17	#include <linux/mmc/host.h>
	18	#include <linux/spi/spi.h>
	19	#include <linux/spi/mmc_spi.h>
	20	#include <linux/platform_data/video-ep93xx.h>
	21	#include <linux/platform_data/spi-ep93xx.h>
	22	#include <linux/gpio.h>
5716fb9b	23	#include <linux/gpio/machine.h>
a3662f6b	24
5b7cc904 AB	25	#include "hardware.h"
5b7cc904 AB	26	#include "gpio-ep93xx.h"
a3662f6b RM	27
	28	#include <asm/mach-types.h>
	29	#include <asm/mach/arch.h>
	30
258249ec RM	31	#include "soc.h"
258249ec RM	32
b370e082	33	static struct ep93xx_eth_data __initdata simone_eth_data = {
a3662f6b RM	34	.phy_id = 1,
	35	};
	36
b370e082	37	static struct ep93xxfb_mach_info __initdata simone_fb_info = {
a3662f6b RM	38	.flags = EP93XXFB_USE_SDCSN0 \| EP93XXFB_PCLK_FALLING,
	39	};
	40
d50bfa47	41	static struct mmc_spi_platform_data simone_mmc_spi_data = {
d50bfa47 MW	42	.detect_delay = 500,
d50bfa47 MW	43	.ocr_mask = MMC_VDD_32_33 \| MMC_VDD_33_34,
5716fb9b LW	44	};
	45
	46	static struct gpiod_lookup_table simone_mmc_spi_gpio_table = {
	47	.dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */
	48	.table = {
	49	/* Card detect */
	50	GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW),
	51	{ },
	52	},
d50bfa47 MW	53	};
	54
	55	static struct spi_board_info simone_spi_devices[] __initdata = {
	56	{
	57	.modalias = "mmc_spi",
d50bfa47 MW	58	.platform_data = &simone_mmc_spi_data,
	59	/*
	60	* We use 10 MHz even though the maximum is 3.7 MHz. The driver
	61	* will limit it automatically to max. frequency.
	62	*/
	63	.max_speed_hz = 10 * 1000 * 1000,
	64	.bus_num = 0,
	65	.chip_select = 0,
	66	.mode = SPI_MODE_3,
	67	},
	68	};
	69
55f0cd3f HS	70	/*
	71	* Up to v1.3, the Sim.One used SFRMOUT as SD card chip select, but this goes
	72	* low between multi-message command blocks. From v1.4, it uses a GPIO instead.
	73	* v1.3 parts will still work, since the signal on SFRMOUT is automatic.
	74	*/
1dfbf334 LW	75	static struct gpiod_lookup_table simone_spi_cs_gpio_table = {
	76	.dev_id = "ep93xx-spi.0",
	77	.table = {
	78	GPIO_LOOKUP("A", 1, "cs", GPIO_ACTIVE_LOW),
	79	{ },
	80	},
55f0cd3f HS	81	};
55f0cd3f HS	82
d50bfa47	83	static struct ep93xx_spi_info simone_spi_info __initdata = {
109965a3	84	.use_dma = 1,
d50bfa47 MW	85	};
d50bfa47 MW	86
a3662f6b RM	87	static struct i2c_board_info __initdata simone_i2c_board_info[] = {
	88	{
	89	I2C_BOARD_INFO("ds1337", 0x68),
	90	},
	91	};
	92
e5063fe8 MW	93	static struct platform_device simone_audio_device = {
	94	.name = "simone-audio",
	95	.id = -1,
	96	};
	97
	98	static void __init simone_register_audio(void)
	99	{
	100	ep93xx_register_ac97();
	101	platform_device_register(&simone_audio_device);
	102	}
	103
a3662f6b RM	104	static void __init simone_init_machine(void)
	105	{
	106	ep93xx_init_devices();
16bcf78f	107	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
a3662f6b RM	108	ep93xx_register_eth(&simone_eth_data, 1);
a3662f6b RM	109	ep93xx_register_fb(&simone_fb_info);
b2e63555	110	ep93xx_register_i2c(simone_i2c_board_info,
a3662f6b	111	ARRAY_SIZE(simone_i2c_board_info));
5716fb9b	112	gpiod_add_lookup_table(&simone_mmc_spi_gpio_table);
1dfbf334	113	gpiod_add_lookup_table(&simone_spi_cs_gpio_table);
d50bfa47 MW	114	ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
d50bfa47 MW	115	ARRAY_SIZE(simone_spi_devices));
e5063fe8	116	simone_register_audio();
a3662f6b RM	117	}
	118
	119	MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board")
e562cf17 NP	120	/* Maintainer: Ryan Mallon */
e562cf17 NP	121	.atag_offset = 0x100,
a3662f6b RM	122	.map_io = ep93xx_map_io,
a3662f6b RM	123	.init_irq = ep93xx_init_irq,
6bb27d73	124	.init_time = ep93xx_timer_init,
a3662f6b	125	.init_machine = simone_init_machine,
c914283f	126	.init_late = ep93xx_init_late,
3275166e	127	.restart = ep93xx_restart,
a3662f6b	128	MACHINE_END