/* * arch/arm/mach-ep93xx/edb93xx.c * Cirrus Logic EDB93xx Development Board support. * * EDB93XX, EDB9301, EDB9307A * Copyright (C) 2008-2009 H Hartley Sweeten * * EDB9302 * Copyright (C) 2006 George Kashperko * * EDB9302A, EDB9315, EDB9315A * Copyright (C) 2006 Lennert Buytenhek * * EDB9307 * Copyright (C) 2007 Herbert Valerio Riedel * * EDB9312 * Copyright (C) 2006 Infosys Technologies Limited * Toufeeq Hussain * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void __init edb93xx_register_flash(void) { if (machine_is_edb9307() || machine_is_edb9312() || machine_is_edb9315()) { ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M); } else { ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); } } static struct ep93xx_eth_data __initdata edb93xx_eth_data = { .phy_id = 1, }; /************************************************************************* * EDB93xx i2c peripheral handling *************************************************************************/ static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = { .sda_pin = EP93XX_GPIO_LINE_EEDAT, .sda_is_open_drain = 0, .scl_pin = EP93XX_GPIO_LINE_EECLK, .scl_is_open_drain = 0, .udelay = 0, /* default to 100 kHz */ .timeout = 0, /* default to 100 ms */ }; static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { { I2C_BOARD_INFO("isl1208", 0x6f), }, }; static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { { I2C_BOARD_INFO("ds1337", 0x68), }, }; static void __init edb93xx_register_i2c(void) { if (machine_is_edb9302a() || machine_is_edb9307a() || machine_is_edb9315a()) { ep93xx_register_i2c(&edb93xx_i2c_gpio_data, edb93xxa_i2c_board_info, ARRAY_SIZE(edb93xxa_i2c_board_info)); } else if (machine_is_edb9307() || machine_is_edb9312() || machine_is_edb9315()) { ep93xx_register_i2c(&edb93xx_i2c_gpio_data, edb93xx_i2c_board_info, ARRAY_SIZE(edb93xx_i2c_board_info)); } } /************************************************************************* * EDB93xx SPI peripheral handling *************************************************************************/ static struct cs4271_platform_data edb93xx_cs4271_data = { .gpio_nreset = -EINVAL, /* filled in later */ }; static int edb93xx_cs4271_hw_setup(struct spi_device *spi) { return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6, GPIOF_OUT_INIT_HIGH, spi->modalias); } static void edb93xx_cs4271_hw_cleanup(struct spi_device *spi) { gpio_free(EP93XX_GPIO_LINE_EGPIO6); } static void edb93xx_cs4271_hw_cs_control(struct spi_device *spi, int value) { gpio_set_value(EP93XX_GPIO_LINE_EGPIO6, value); } static struct ep93xx_spi_chip_ops edb93xx_cs4271_hw = { .setup = edb93xx_cs4271_hw_setup, .cleanup = edb93xx_cs4271_hw_cleanup, .cs_control = edb93xx_cs4271_hw_cs_control, }; static struct spi_board_info edb93xx_spi_board_info[] __initdata = { { .modalias = "cs4271", .platform_data = &edb93xx_cs4271_data, .controller_data = &edb93xx_cs4271_hw, .max_speed_hz = 6000000, .bus_num = 0, .chip_select = 0, .mode = SPI_MODE_3, }, }; static struct ep93xx_spi_info edb93xx_spi_info __initdata = { .num_chipselect = ARRAY_SIZE(edb93xx_spi_board_info), }; static void __init edb93xx_register_spi(void) { if (machine_is_edb9301() || machine_is_edb9302()) edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; else if (machine_is_edb9302a() || machine_is_edb9307a()) edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); else if (machine_is_edb9315a()) edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, ARRAY_SIZE(edb93xx_spi_board_info)); } /************************************************************************* * EDB93xx I2S *************************************************************************/ static struct platform_device edb93xx_audio_device = { .name = "edb93xx-audio", .id = -1, }; static int __init edb93xx_has_audio(void) { return (machine_is_edb9301() || machine_is_edb9302() || machine_is_edb9302a() || machine_is_edb9307a() || machine_is_edb9315a()); } static void __init edb93xx_register_i2s(void) { if (edb93xx_has_audio()) { ep93xx_register_i2s(); platform_device_register(&edb93xx_audio_device); } } /************************************************************************* * EDB93xx pwm *************************************************************************/ static void __init edb93xx_register_pwm(void) { if (machine_is_edb9301() || machine_is_edb9302() || machine_is_edb9302a()) { /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ ep93xx_register_pwm(0, 1); } else if (machine_is_edb9307() || machine_is_edb9307a()) { /* EP9307 only has pwm.0 (PWMOUT) */ ep93xx_register_pwm(1, 0); } else { /* EP9312 and EP9315 have both */ ep93xx_register_pwm(1, 1); } } /************************************************************************* * EDB93xx framebuffer *************************************************************************/ static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { .num_modes = EP93XXFB_USE_MODEDB, .bpp = 16, .flags = 0, }; static int __init edb93xx_has_fb(void) { /* These platforms have an ep93xx with video capability */ return machine_is_edb9307() || machine_is_edb9307a() || machine_is_edb9312() || machine_is_edb9315() || machine_is_edb9315a(); } static void __init edb93xx_register_fb(void) { if (!edb93xx_has_fb()) return; if (machine_is_edb9307a() || machine_is_edb9315a()) edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; else edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; ep93xx_register_fb(&edb93xxfb_info); } static void __init edb93xx_init_machine(void) { ep93xx_init_devices(); edb93xx_register_flash(); ep93xx_register_eth(&edb93xx_eth_data, 1); edb93xx_register_i2c(); edb93xx_register_spi(); edb93xx_register_i2s(); edb93xx_register_pwm(); edb93xx_register_fb(); } #ifdef CONFIG_MACH_EDB9301 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") /* Maintainer: H Hartley Sweeten */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9302 MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") /* Maintainer: George Kashperko */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9302A MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") /* Maintainer: Lennert Buytenhek */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9307 MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board") /* Maintainer: Herbert Valerio Riedel */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9307A MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") /* Maintainer: H Hartley Sweeten */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9312 MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") /* Maintainer: Toufeeq Hussain */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9315 MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") /* Maintainer: Lennert Buytenhek */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif #ifdef CONFIG_MACH_EDB9315A MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") /* Maintainer: Lennert Buytenhek */ .atag_offset = 0x100, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .timer = &ep93xx_timer, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif