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344 lines
9.3 KiB
344 lines
9.3 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* arch/arm/mach-ep93xx/edb93xx.c |
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* Cirrus Logic EDB93xx Development Board support. |
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* |
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* EDB93XX, EDB9301, EDB9307A |
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* Copyright (C) 2008-2009 H Hartley Sweeten <[email protected]> |
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* |
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* EDB9302 |
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* Copyright (C) 2006 George Kashperko <[email protected]> |
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* |
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* EDB9302A, EDB9315, EDB9315A |
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* Copyright (C) 2006 Lennert Buytenhek <[email protected]> |
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* |
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* EDB9307 |
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* Copyright (C) 2007 Herbert Valerio Riedel <[email protected]> |
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* |
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* EDB9312 |
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* Copyright (C) 2006 Infosys Technologies Limited |
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* Toufeeq Hussain <[email protected]> |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/i2c.h> |
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#include <linux/spi/spi.h> |
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#include <linux/gpio/machine.h> |
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#include <sound/cs4271.h> |
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#include "hardware.h" |
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#include <linux/platform_data/video-ep93xx.h> |
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#include <linux/platform_data/spi-ep93xx.h> |
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#include "gpio-ep93xx.h" |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include "soc.h" |
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static void __init edb93xx_register_flash(void) |
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{ |
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if (machine_is_edb9307() || machine_is_edb9312() || |
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machine_is_edb9315()) { |
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ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M); |
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} else { |
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ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); |
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} |
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} |
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static struct ep93xx_eth_data __initdata edb93xx_eth_data = { |
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.phy_id = 1, |
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}; |
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/************************************************************************* |
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* EDB93xx i2c peripheral handling |
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*************************************************************************/ |
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static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { |
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{ |
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I2C_BOARD_INFO("isl1208", 0x6f), |
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}, |
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}; |
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static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { |
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{ |
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I2C_BOARD_INFO("ds1337", 0x68), |
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}, |
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}; |
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static void __init edb93xx_register_i2c(void) |
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{ |
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if (machine_is_edb9302a() || machine_is_edb9307a() || |
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machine_is_edb9315a()) { |
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ep93xx_register_i2c(edb93xxa_i2c_board_info, |
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ARRAY_SIZE(edb93xxa_i2c_board_info)); |
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} else if (machine_is_edb9302() || machine_is_edb9307() |
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|| machine_is_edb9312() || machine_is_edb9315()) { |
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ep93xx_register_i2c(edb93xx_i2c_board_info, |
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ARRAY_SIZE(edb93xx_i2c_board_info)); |
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} |
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} |
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/************************************************************************* |
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* EDB93xx SPI peripheral handling |
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*************************************************************************/ |
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static struct cs4271_platform_data edb93xx_cs4271_data = { |
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.gpio_nreset = -EINVAL, /* filled in later */ |
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}; |
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static struct spi_board_info edb93xx_spi_board_info[] __initdata = { |
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{ |
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.modalias = "cs4271", |
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.platform_data = &edb93xx_cs4271_data, |
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.max_speed_hz = 6000000, |
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.bus_num = 0, |
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.chip_select = 0, |
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.mode = SPI_MODE_3, |
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}, |
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}; |
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static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = { |
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.dev_id = "spi0", |
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.table = { |
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GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW), |
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{ }, |
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}, |
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}; |
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static struct ep93xx_spi_info edb93xx_spi_info __initdata = { |
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/* Intentionally left blank */ |
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}; |
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static void __init edb93xx_register_spi(void) |
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{ |
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if (machine_is_edb9301() || machine_is_edb9302()) |
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edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; |
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else if (machine_is_edb9302a() || machine_is_edb9307a()) |
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edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); |
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else if (machine_is_edb9315a()) |
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edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; |
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gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table); |
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ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, |
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ARRAY_SIZE(edb93xx_spi_board_info)); |
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} |
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/************************************************************************* |
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* EDB93xx I2S |
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*************************************************************************/ |
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static struct platform_device edb93xx_audio_device = { |
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.name = "edb93xx-audio", |
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.id = -1, |
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}; |
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static int __init edb93xx_has_audio(void) |
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{ |
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return (machine_is_edb9301() || machine_is_edb9302() || |
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machine_is_edb9302a() || machine_is_edb9307a() || |
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machine_is_edb9315a()); |
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} |
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static void __init edb93xx_register_i2s(void) |
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{ |
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if (edb93xx_has_audio()) { |
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ep93xx_register_i2s(); |
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platform_device_register(&edb93xx_audio_device); |
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} |
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} |
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/************************************************************************* |
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* EDB93xx pwm |
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*************************************************************************/ |
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static void __init edb93xx_register_pwm(void) |
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{ |
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if (machine_is_edb9301() || |
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machine_is_edb9302() || machine_is_edb9302a()) { |
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/* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ |
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ep93xx_register_pwm(0, 1); |
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} else if (machine_is_edb9307() || machine_is_edb9307a()) { |
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/* EP9307 only has pwm.0 (PWMOUT) */ |
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ep93xx_register_pwm(1, 0); |
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} else { |
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/* EP9312 and EP9315 have both */ |
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ep93xx_register_pwm(1, 1); |
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} |
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} |
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/************************************************************************* |
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* EDB93xx framebuffer |
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*************************************************************************/ |
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static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { |
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.flags = 0, |
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}; |
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static int __init edb93xx_has_fb(void) |
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{ |
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/* These platforms have an ep93xx with video capability */ |
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return machine_is_edb9307() || machine_is_edb9307a() || |
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machine_is_edb9312() || machine_is_edb9315() || |
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machine_is_edb9315a(); |
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} |
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static void __init edb93xx_register_fb(void) |
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{ |
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if (!edb93xx_has_fb()) |
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return; |
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if (machine_is_edb9307a() || machine_is_edb9315a()) |
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edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; |
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else |
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edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; |
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ep93xx_register_fb(&edb93xxfb_info); |
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} |
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/************************************************************************* |
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* EDB93xx IDE |
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*************************************************************************/ |
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static int __init edb93xx_has_ide(void) |
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{ |
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/* |
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* Although EDB9312 and EDB9315 do have IDE capability, they have |
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* INTRQ line wired as pull-up, which makes using IDE interface |
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* problematic. |
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*/ |
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return machine_is_edb9312() || machine_is_edb9315() || |
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machine_is_edb9315a(); |
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} |
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static void __init edb93xx_register_ide(void) |
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{ |
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if (!edb93xx_has_ide()) |
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return; |
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ep93xx_register_ide(); |
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} |
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static void __init edb93xx_init_machine(void) |
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{ |
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ep93xx_init_devices(); |
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edb93xx_register_flash(); |
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ep93xx_register_eth(&edb93xx_eth_data, 1); |
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edb93xx_register_i2c(); |
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edb93xx_register_spi(); |
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edb93xx_register_i2s(); |
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edb93xx_register_pwm(); |
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edb93xx_register_fb(); |
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edb93xx_register_ide(); |
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ep93xx_register_adc(); |
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} |
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#ifdef CONFIG_MACH_EDB9301 |
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MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") |
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/* Maintainer: H Hartley Sweeten <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9302 |
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MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") |
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/* Maintainer: George Kashperko <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9302A |
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MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") |
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/* Maintainer: Lennert Buytenhek <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9307 |
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MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board") |
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/* Maintainer: Herbert Valerio Riedel <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9307A |
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MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") |
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/* Maintainer: H Hartley Sweeten <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9312 |
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MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") |
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/* Maintainer: Toufeeq Hussain <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9315 |
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MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") |
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/* Maintainer: Lennert Buytenhek <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_EDB9315A |
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MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") |
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/* Maintainer: Lennert Buytenhek <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = edb93xx_init_machine, |
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.init_late = ep93xx_init_late, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif
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