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