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// SPDX-License-Identifier: GPL-2.0-only
/*
* arch/arm/plat-iop/i2c.c
*
* Author: Nicolas Pitre <nico@cam.org>
* Copyright (C) 2001 MontaVista Software, Inc.
* Copyright (C) 2004 Intel Corporation.
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_core.h>
#include <linux/io.h>
#include <linux/gpio/machine.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/mach/map.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <mach/hardware.h>
#include <asm/hardware/iop3xx.h>
#include <asm/mach/arch.h>
#ifdef CONFIG_ARCH_IOP32X
#define IRQ_IOP3XX_I2C_0 IRQ_IOP32X_I2C_0
#define IRQ_IOP3XX_I2C_1 IRQ_IOP32X_I2C_1
#endif
#ifdef CONFIG_ARCH_IOP33X
#define IRQ_IOP3XX_I2C_0 IRQ_IOP33X_I2C_0
#define IRQ_IOP3XX_I2C_1 IRQ_IOP33X_I2C_1
#endif
/*
* Each of the I2C busses have corresponding GPIO lines, and the driver
* need to access these directly to drive the bus low at times.
*/
struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup = {
.dev_id = "IOP3xx-I2C.0",
.table = {
GPIO_LOOKUP("gpio-iop", 7, "scl", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-iop", 6, "sda", GPIO_ACTIVE_HIGH),
{ }
},
};
struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup = {
.dev_id = "IOP3xx-I2C.1",
.table = {
GPIO_LOOKUP("gpio-iop", 5, "scl", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-iop", 4, "sda", GPIO_ACTIVE_HIGH),
{ }
},
};
static struct resource iop3xx_i2c0_resources[] = {
[0] = {
.start = 0xfffff680,
.end = 0xfffff697,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_IOP3XX_I2C_0,
.end = IRQ_IOP3XX_I2C_0,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device iop3xx_i2c0_device = {
.name = "IOP3xx-I2C",
.id = 0,
.num_resources = 2,
.resource = iop3xx_i2c0_resources,
};
static struct resource iop3xx_i2c1_resources[] = {
[0] = {
.start = 0xfffff6a0,
.end = 0xfffff6b7,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_IOP3XX_I2C_1,
.end = IRQ_IOP3XX_I2C_1,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device iop3xx_i2c1_device = {
.name = "IOP3xx-I2C",
.id = 1,
.num_resources = 2,
.resource = iop3xx_i2c1_resources,
};
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