[mirror_ubuntu-focal-kernel.git] / arch / arm / mach-ep93xx / vision_ep9307.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * arch/arm/mach-ep93xx/vision_ep9307.c
 * Vision Engraving Systems EP9307 SoM support.
 *
 * Copyright (C) 2008-2011 Vision Engraving Systems
 * H Hartley Sweeten <hsweeten@visionengravers.com>
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/fb.h>
#include <linux/io.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c.h>
#include <linux/platform_data/pca953x.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/spi/mmc_spi.h>
#include <linux/mmc/host.h>

#include <sound/cs4271.h>

#include "hardware.h"
#include <linux/platform_data/video-ep93xx.h>
#include <linux/platform_data/spi-ep93xx.h>
#include "gpio-ep93xx.h"

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

#include "soc.h"

/*************************************************************************
 * Static I/O mappings for the FPGA
 *************************************************************************/
#define VISION_PHYS_BASE	EP93XX_CS7_PHYS_BASE
#define VISION_VIRT_BASE	0xfebff000

static struct map_desc vision_io_desc[] __initdata = {
	{
		.virtual	= VISION_VIRT_BASE,
		.pfn		= __phys_to_pfn(VISION_PHYS_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	},
};

static void __init vision_map_io(void)
{
	ep93xx_map_io();

	iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc));
}

/*************************************************************************
 * Ethernet
 *************************************************************************/
static struct ep93xx_eth_data vision_eth_data __initdata = {
	.phy_id		= 1,
};

/*************************************************************************
 * Framebuffer
 *************************************************************************/
#define VISION_LCD_ENABLE	EP93XX_GPIO_LINE_EGPIO1

static int vision_lcd_setup(struct platform_device *pdev)
{
	int err;

	err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH,
				dev_name(&pdev->dev));
	if (err)
		return err;

	ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS |
				 EP93XX_SYSCON_DEVCFG_RASONP3 |
				 EP93XX_SYSCON_DEVCFG_EXVC);

	return 0;
}

static void vision_lcd_teardown(struct platform_device *pdev)
{
	gpio_free(VISION_LCD_ENABLE);
}

static void vision_lcd_blank(int blank_mode, struct fb_info *info)
{
	if (blank_mode)
		gpio_set_value(VISION_LCD_ENABLE, 0);
	else
		gpio_set_value(VISION_LCD_ENABLE, 1);
}

static struct ep93xxfb_mach_info ep93xxfb_info __initdata = {
	.flags		= EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
	.setup		= vision_lcd_setup,
	.teardown	= vision_lcd_teardown,
	.blank		= vision_lcd_blank,
};


/*************************************************************************
 * GPIO Expanders
 *************************************************************************/
#define PCA9539_74_GPIO_BASE	(EP93XX_GPIO_LINE_MAX + 1)
#define PCA9539_75_GPIO_BASE	(PCA9539_74_GPIO_BASE + 16)
#define PCA9539_76_GPIO_BASE	(PCA9539_75_GPIO_BASE + 16)
#define PCA9539_77_GPIO_BASE	(PCA9539_76_GPIO_BASE + 16)

static struct pca953x_platform_data pca953x_74_gpio_data = {
	.gpio_base	= PCA9539_74_GPIO_BASE,
	.irq_base	= EP93XX_BOARD_IRQ(0),
};

static struct pca953x_platform_data pca953x_75_gpio_data = {
	.gpio_base	= PCA9539_75_GPIO_BASE,
	.irq_base	= -1,
};

static struct pca953x_platform_data pca953x_76_gpio_data = {
	.gpio_base	= PCA9539_76_GPIO_BASE,
	.irq_base	= -1,
};

static struct pca953x_platform_data pca953x_77_gpio_data = {
	.gpio_base	= PCA9539_77_GPIO_BASE,
	.irq_base	= -1,
};

/*************************************************************************
 * I2C Bus
 *************************************************************************/

static struct i2c_board_info vision_i2c_info[] __initdata = {
	{
		I2C_BOARD_INFO("isl1208", 0x6f),
		.irq		= IRQ_EP93XX_EXT1,
	}, {
		I2C_BOARD_INFO("pca9539", 0x74),
		.platform_data	= &pca953x_74_gpio_data,
	}, {
		I2C_BOARD_INFO("pca9539", 0x75),
		.platform_data	= &pca953x_75_gpio_data,
	}, {
		I2C_BOARD_INFO("pca9539", 0x76),
		.platform_data	= &pca953x_76_gpio_data,
	}, {
		I2C_BOARD_INFO("pca9539", 0x77),
		.platform_data	= &pca953x_77_gpio_data,
	},
};

/*************************************************************************
 * SPI CS4271 Audio Codec
 *************************************************************************/
static struct cs4271_platform_data vision_cs4271_data = {
	.gpio_nreset	= EP93XX_GPIO_LINE_H(2),
};

/*************************************************************************
 * SPI Flash
 *************************************************************************/
static struct mtd_partition vision_spi_flash_partitions[] = {
	{
		.name	= "SPI bootstrap",
		.offset	= 0,
		.size	= SZ_4K,
	}, {
		.name	= "Bootstrap config",
		.offset	= MTDPART_OFS_APPEND,
		.size	= SZ_4K,
	}, {
		.name	= "System config",
		.offset	= MTDPART_OFS_APPEND,
		.size	= MTDPART_SIZ_FULL,
	},
};

static struct flash_platform_data vision_spi_flash_data = {
	.name		= "SPI Flash",
	.parts		= vision_spi_flash_partitions,
	.nr_parts	= ARRAY_SIZE(vision_spi_flash_partitions),
};

/*************************************************************************
 * SPI SD/MMC host
 *************************************************************************/
static struct mmc_spi_platform_data vision_spi_mmc_data = {
	.detect_delay	= 100,
	.powerup_msecs	= 100,
	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
	.caps2		= MMC_CAP2_RO_ACTIVE_HIGH,
};

static struct gpiod_lookup_table vision_spi_mmc_gpio_table = {
	.dev_id = "mmc_spi.2", /* "mmc_spi @ CS2 */
	.table = {
		/* Card detect */
		GPIO_LOOKUP_IDX("B", 7, NULL, 0, GPIO_ACTIVE_LOW),
		/* Write protect */
		GPIO_LOOKUP_IDX("F", 0, NULL, 1, GPIO_ACTIVE_HIGH),
		{ },
	},
};

/*************************************************************************
 * SPI Bus
 *************************************************************************/
static struct spi_board_info vision_spi_board_info[] __initdata = {
	{
		.modalias		= "cs4271",
		.platform_data		= &vision_cs4271_data,
		.max_speed_hz		= 6000000,
		.bus_num		= 0,
		.chip_select		= 0,
		.mode			= SPI_MODE_3,
	}, {
		.modalias		= "sst25l",
		.platform_data		= &vision_spi_flash_data,
		.max_speed_hz		= 20000000,
		.bus_num		= 0,
		.chip_select		= 1,
		.mode			= SPI_MODE_3,
	}, {
		.modalias		= "mmc_spi",
		.platform_data		= &vision_spi_mmc_data,
		.max_speed_hz		= 20000000,
		.bus_num		= 0,
		.chip_select		= 2,
		.mode			= SPI_MODE_3,
	},
};

static struct gpiod_lookup_table vision_spi_cs_gpio_table = {
	.dev_id = "ep93xx-spi.0",
	.table = {
		GPIO_LOOKUP_IDX("A", 6, "cs", 0, GPIO_ACTIVE_LOW),
		GPIO_LOOKUP_IDX("A", 7, "cs", 1, GPIO_ACTIVE_LOW),
		GPIO_LOOKUP_IDX("G", 2, "cs", 2, GPIO_ACTIVE_LOW),
		{ },
	},
};

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

/*************************************************************************
 * I2S Audio
 *************************************************************************/
static struct platform_device vision_audio_device = {
	.name		= "edb93xx-audio",
	.id		= -1,
};

static void __init vision_register_i2s(void)
{
	ep93xx_register_i2s();
	platform_device_register(&vision_audio_device);
}

/*************************************************************************
 * Machine Initialization
 *************************************************************************/
static void __init vision_init_machine(void)
{
	ep93xx_init_devices();
	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M);
	ep93xx_register_eth(&vision_eth_data, 1);
	ep93xx_register_fb(&ep93xxfb_info);
	ep93xx_register_pwm(1, 0);

	/*
	 * Request the gpio expander's interrupt gpio line now to prevent
	 * the kernel from doing a WARN in gpiolib:gpio_ensure_requested().
	 */
	if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_DIR_IN,
				"pca9539:74"))
		pr_warn("cannot request interrupt gpio for pca9539:74\n");

	vision_i2c_info[1].irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7));

	ep93xx_register_i2c(vision_i2c_info,
				ARRAY_SIZE(vision_i2c_info));
	gpiod_add_lookup_table(&vision_spi_mmc_gpio_table);
	gpiod_add_lookup_table(&vision_spi_cs_gpio_table);
	ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
				ARRAY_SIZE(vision_spi_board_info));
	vision_register_i2s();
}

MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
	.atag_offset	= 0x100,
	.map_io		= vision_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= vision_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
1cb17e2d HS	2	/*
	3	* arch/arm/mach-ep93xx/vision_ep9307.c
	4	* Vision Engraving Systems EP9307 SoM support.
	5	*
	6	* Copyright (C) 2008-2011 Vision Engraving Systems
	7	* H Hartley Sweeten <hsweeten@visionengravers.com>
1cb17e2d HS	8	*/
	9
	10	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	11
	12	#include <linux/kernel.h>
	13	#include <linux/init.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/irq.h>
	16	#include <linux/gpio.h>
5716fb9b	17	#include <linux/gpio/machine.h>
1cb17e2d HS	18	#include <linux/fb.h>
	19	#include <linux/io.h>
	20	#include <linux/mtd/partitions.h>
	21	#include <linux/i2c.h>
5877457a	22	#include <linux/platform_data/pca953x.h>
1cb17e2d HS	23	#include <linux/spi/spi.h>
	24	#include <linux/spi/flash.h>
	25	#include <linux/spi/mmc_spi.h>
	26	#include <linux/mmc/host.h>
	27
b07b4e29 HS	28	#include <sound/cs4271.h>
b07b4e29 HS	29
5b7cc904	30	#include "hardware.h"
a3b29245 AB	31	#include <linux/platform_data/video-ep93xx.h>
a3b29245 AB	32	#include <linux/platform_data/spi-ep93xx.h>
5b7cc904	33	#include "gpio-ep93xx.h"
1cb17e2d HS	34
	35	#include <asm/mach-types.h>
	36	#include <asm/mach/map.h>
	37	#include <asm/mach/arch.h>
	38
258249ec RM	39	#include "soc.h"
258249ec RM	40
1cb17e2d HS	41	/*************************************************************************
	42	* Static I/O mappings for the FPGA
	43	*************************************************************************/
	44	#define VISION_PHYS_BASE EP93XX_CS7_PHYS_BASE
	45	#define VISION_VIRT_BASE 0xfebff000
	46
	47	static struct map_desc vision_io_desc[] __initdata = {
	48	{
	49	.virtual = VISION_VIRT_BASE,
	50	.pfn = __phys_to_pfn(VISION_PHYS_BASE),
	51	.length = SZ_4K,
	52	.type = MT_DEVICE,
	53	},
	54	};
	55
	56	static void __init vision_map_io(void)
	57	{
	58	ep93xx_map_io();
	59
	60	iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc));
	61	}
	62
	63	/*************************************************************************
	64	* Ethernet
	65	*************************************************************************/
	66	static struct ep93xx_eth_data vision_eth_data __initdata = {
	67	.phy_id = 1,
	68	};
	69
	70	/*************************************************************************
	71	* Framebuffer
	72	*************************************************************************/
	73	#define VISION_LCD_ENABLE EP93XX_GPIO_LINE_EGPIO1
	74
	75	static int vision_lcd_setup(struct platform_device *pdev)
	76	{
	77	int err;
	78
	79	err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH,
	80	dev_name(&pdev->dev));
	81	if (err)
	82	return err;
	83
	84	ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS \|
	85	EP93XX_SYSCON_DEVCFG_RASONP3 \|
	86	EP93XX_SYSCON_DEVCFG_EXVC);
	87
	88	return 0;
	89	}
	90
	91	static void vision_lcd_teardown(struct platform_device *pdev)
	92	{
	93	gpio_free(VISION_LCD_ENABLE);
	94	}
	95
	96	static void vision_lcd_blank(int blank_mode, struct fb_info *info)
	97	{
	98	if (blank_mode)
	99	gpio_set_value(VISION_LCD_ENABLE, 0);
	100	else
	101	gpio_set_value(VISION_LCD_ENABLE, 1);
	102	}
	103
	104	static struct ep93xxfb_mach_info ep93xxfb_info __initdata = {
1cb17e2d HS	105	.flags = EP93XXFB_USE_SDCSN0 \| EP93XXFB_PCLK_FALLING,
	106	.setup = vision_lcd_setup,
	107	.teardown = vision_lcd_teardown,
	108	.blank = vision_lcd_blank,
	109	};
	110
	111
	112	/*************************************************************************
	113	* GPIO Expanders
	114	*************************************************************************/
	115	#define PCA9539_74_GPIO_BASE (EP93XX_GPIO_LINE_MAX + 1)
	116	#define PCA9539_75_GPIO_BASE (PCA9539_74_GPIO_BASE + 16)
	117	#define PCA9539_76_GPIO_BASE (PCA9539_75_GPIO_BASE + 16)
	118	#define PCA9539_77_GPIO_BASE (PCA9539_76_GPIO_BASE + 16)
	119
	120	static struct pca953x_platform_data pca953x_74_gpio_data = {
	121	.gpio_base = PCA9539_74_GPIO_BASE,
	122	.irq_base = EP93XX_BOARD_IRQ(0),
	123	};
	124
	125	static struct pca953x_platform_data pca953x_75_gpio_data = {
	126	.gpio_base = PCA9539_75_GPIO_BASE,
	127	.irq_base = -1,
	128	};
	129
	130	static struct pca953x_platform_data pca953x_76_gpio_data = {
	131	.gpio_base = PCA9539_76_GPIO_BASE,
	132	.irq_base = -1,
	133	};
	134
	135	static struct pca953x_platform_data pca953x_77_gpio_data = {
	136	.gpio_base = PCA9539_77_GPIO_BASE,
	137	.irq_base = -1,
	138	};
	139
	140	/*************************************************************************
	141	* I2C Bus
	142	*************************************************************************/
1cb17e2d HS	143
	144	static struct i2c_board_info vision_i2c_info[] __initdata = {
	145	{
	146	I2C_BOARD_INFO("isl1208", 0x6f),
	147	.irq = IRQ_EP93XX_EXT1,
	148	}, {
	149	I2C_BOARD_INFO("pca9539", 0x74),
	150	.platform_data = &pca953x_74_gpio_data,
1cb17e2d HS	151	}, {
	152	I2C_BOARD_INFO("pca9539", 0x75),
	153	.platform_data = &pca953x_75_gpio_data,
	154	}, {
	155	I2C_BOARD_INFO("pca9539", 0x76),
	156	.platform_data = &pca953x_76_gpio_data,
	157	}, {
	158	I2C_BOARD_INFO("pca9539", 0x77),
	159	.platform_data = &pca953x_77_gpio_data,
	160	},
	161	};
	162
b07b4e29 HS	163	/*************************************************************************
	164	* SPI CS4271 Audio Codec
	165	*************************************************************************/
	166	static struct cs4271_platform_data vision_cs4271_data = {
	167	.gpio_nreset = EP93XX_GPIO_LINE_H(2),
	168	};
	169
1cb17e2d HS	170	/*************************************************************************
	171	* SPI Flash
	172	*************************************************************************/
1cb17e2d HS	173	static struct mtd_partition vision_spi_flash_partitions[] = {
	174	{
	175	.name = "SPI bootstrap",
	176	.offset = 0,
	177	.size = SZ_4K,
	178	}, {
	179	.name = "Bootstrap config",
	180	.offset = MTDPART_OFS_APPEND,
	181	.size = SZ_4K,
	182	}, {
	183	.name = "System config",
	184	.offset = MTDPART_OFS_APPEND,
	185	.size = MTDPART_SIZ_FULL,
	186	},
	187	};
	188
	189	static struct flash_platform_data vision_spi_flash_data = {
	190	.name = "SPI Flash",
	191	.parts = vision_spi_flash_partitions,
	192	.nr_parts = ARRAY_SIZE(vision_spi_flash_partitions),
	193	};
	194
1cb17e2d HS	195	/*************************************************************************
	196	* SPI SD/MMC host
	197	*************************************************************************/
1cb17e2d	198	static struct mmc_spi_platform_data vision_spi_mmc_data = {
1cb17e2d HS	199	.detect_delay = 100,
	200	.powerup_msecs = 100,
	201	.ocr_mask = MMC_VDD_32_33 \| MMC_VDD_33_34,
2a4f6b1d	202	.caps2 = MMC_CAP2_RO_ACTIVE_HIGH,
1cb17e2d HS	203	};
1cb17e2d HS	204
5716fb9b LW	205	static struct gpiod_lookup_table vision_spi_mmc_gpio_table = {
	206	.dev_id = "mmc_spi.2", /* "mmc_spi @ CS2 */
	207	.table = {
	208	/* Card detect */
	209	GPIO_LOOKUP_IDX("B", 7, NULL, 0, GPIO_ACTIVE_LOW),
	210	/* Write protect */
	211	GPIO_LOOKUP_IDX("F", 0, NULL, 1, GPIO_ACTIVE_HIGH),
	212	{ },
	213	},
	214	};
	215
1cb17e2d HS	216	/*************************************************************************
	217	* SPI Bus
	218	*************************************************************************/
	219	static struct spi_board_info vision_spi_board_info[] __initdata = {
	220	{
b07b4e29 HS	221	.modalias = "cs4271",
b07b4e29 HS	222	.platform_data = &vision_cs4271_data,
b07b4e29 HS	223	.max_speed_hz = 6000000,
	224	.bus_num = 0,
	225	.chip_select = 0,
	226	.mode = SPI_MODE_3,
	227	}, {
1cb17e2d HS	228	.modalias = "sst25l",
1cb17e2d HS	229	.platform_data = &vision_spi_flash_data,
1cb17e2d HS	230	.max_speed_hz = 20000000,
1cb17e2d HS	231	.bus_num = 0,
b07b4e29	232	.chip_select = 1,
1cb17e2d HS	233	.mode = SPI_MODE_3,
	234	}, {
	235	.modalias = "mmc_spi",
	236	.platform_data = &vision_spi_mmc_data,
1cb17e2d HS	237	.max_speed_hz = 20000000,
1cb17e2d HS	238	.bus_num = 0,
b07b4e29	239	.chip_select = 2,
1cb17e2d HS	240	.mode = SPI_MODE_3,
	241	},
	242	};
	243
1dfbf334 LW	244	static struct gpiod_lookup_table vision_spi_cs_gpio_table = {
	245	.dev_id = "ep93xx-spi.0",
	246	.table = {
	247	GPIO_LOOKUP_IDX("A", 6, "cs", 0, GPIO_ACTIVE_LOW),
	248	GPIO_LOOKUP_IDX("A", 7, "cs", 1, GPIO_ACTIVE_LOW),
	249	GPIO_LOOKUP_IDX("G", 2, "cs", 2, GPIO_ACTIVE_LOW),
	250	{ },
	251	},
55f0cd3f HS	252	};
55f0cd3f HS	253
1cb17e2d	254	static struct ep93xx_spi_info vision_spi_master __initdata = {
25105231	255	.use_dma = 1,
1cb17e2d HS	256	};
1cb17e2d HS	257
b07b4e29 HS	258	/*************************************************************************
	259	* I2S Audio
	260	*************************************************************************/
	261	static struct platform_device vision_audio_device = {
	262	.name = "edb93xx-audio",
	263	.id = -1,
	264	};
	265
	266	static void __init vision_register_i2s(void)
	267	{
	268	ep93xx_register_i2s();
	269	platform_device_register(&vision_audio_device);
	270	}
	271
1cb17e2d HS	272	/*************************************************************************
	273	* Machine Initialization
	274	*************************************************************************/
	275	static void __init vision_init_machine(void)
	276	{
	277	ep93xx_init_devices();
	278	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M);
	279	ep93xx_register_eth(&vision_eth_data, 1);
	280	ep93xx_register_fb(&ep93xxfb_info);
	281	ep93xx_register_pwm(1, 0);
	282
	283	/*
	284	* Request the gpio expander's interrupt gpio line now to prevent
	285	* the kernel from doing a WARN in gpiolib:gpio_ensure_requested().
	286	*/
	287	if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_DIR_IN,
	288	"pca9539:74"))
	289	pr_warn("cannot request interrupt gpio for pca9539:74\n");
	290
e9c6c5df HS	291	vision_i2c_info[1].irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7));
e9c6c5df HS	292
b2e63555	293	ep93xx_register_i2c(vision_i2c_info,
1cb17e2d	294	ARRAY_SIZE(vision_i2c_info));
5716fb9b	295	gpiod_add_lookup_table(&vision_spi_mmc_gpio_table);
1dfbf334	296	gpiod_add_lookup_table(&vision_spi_cs_gpio_table);
1cb17e2d HS	297	ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
1cb17e2d HS	298	ARRAY_SIZE(vision_spi_board_info));
b07b4e29	299	vision_register_i2s();
1cb17e2d HS	300	}
	301
	302	MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
	303	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
a7fadac1	304	.atag_offset = 0x100,
1cb17e2d HS	305	.map_io = vision_map_io,
1cb17e2d HS	306	.init_irq = ep93xx_init_irq,
6bb27d73	307	.init_time = ep93xx_timer_init,
1cb17e2d	308	.init_machine = vision_init_machine,
c914283f	309	.init_late = ep93xx_init_late,
3275166e	310	.restart = ep93xx_restart,
1cb17e2d	311	MACHINE_END