// SPDX-License-Identifier: GPL-2.0-or-later /* * arch/arm/mach-ep93xx/edb93xx.c * Cirrus Logic EDB93xx Development Board support. * * EDB93XX, EDB9301, EDB9307A * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com> * * EDB9302 * Copyright (C) 2006 George Kashperko <george@chas.com.ua> * * EDB9302A, EDB9315, EDB9315A * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> * * EDB9307 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org> * * EDB9312 * Copyright (C) 2006 Infosys Technologies Limited * Toufeeq Hussain <toufeeq_hussain@infosys.com> */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/spi/spi.h> #include <linux/gpio/machine.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/arch.h> #include "soc.h" 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_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(edb93xxa_i2c_board_info, ARRAY_SIZE(edb93xxa_i2c_board_info)); } else if (machine_is_edb9302() || machine_is_edb9307() || machine_is_edb9312() || machine_is_edb9315()) { ep93xx_register_i2c(edb93xx_i2c_board_info, ARRAY_SIZE(edb93xx_i2c_board_info)); } } /************************************************************************* * EDB93xx SPI peripheral handling *************************************************************************/ static struct cs4271_platform_data edb93xx_cs4271_data = { /* Intentionally left blank */ }; static struct spi_board_info edb93xx_spi_board_info[] __initdata = { { .modalias = "cs4271", .platform_data = &edb93xx_cs4271_data, .max_speed_hz = 6000000, .bus_num = 0, .chip_select = 0, .mode = SPI_MODE_3, }, }; static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = { .dev_id = "spi0", .table = { GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW), { }, }, }; static struct ep93xx_spi_info edb93xx_spi_info __initdata = { /* Intentionally left blank */ }; static struct gpiod_lookup_table edb93xx_cs4272_edb9301_gpio_table = { .dev_id = "spi0.0", /* CS0 on SPI0 */ .table = { GPIO_LOOKUP("A", 1, "reset", GPIO_ACTIVE_LOW), { }, }, }; static struct gpiod_lookup_table edb93xx_cs4272_edb9302_gpio_table = { .dev_id = "spi0.0", /* CS0 on SPI0 */ .table = { GPIO_LOOKUP("H", 2, "reset", GPIO_ACTIVE_LOW), { }, }, }; static struct gpiod_lookup_table edb93xx_cs4272_edb9315_gpio_table = { .dev_id = "spi0.0", /* CS0 on SPI0 */ .table = { GPIO_LOOKUP("B", 6, "reset", GPIO_ACTIVE_LOW), { }, }, }; static void __init edb93xx_register_spi(void) { if (machine_is_edb9301() || machine_is_edb9302()) gpiod_add_lookup_table(&edb93xx_cs4272_edb9301_gpio_table); else if (machine_is_edb9302a() || machine_is_edb9307a()) gpiod_add_lookup_table(&edb93xx_cs4272_edb9302_gpio_table); else if (machine_is_edb9315a()) gpiod_add_lookup_table(&edb93xx_cs4272_edb9315_gpio_table); gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table); 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 = { .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); } /************************************************************************* * EDB93xx IDE *************************************************************************/ static int __init edb93xx_has_ide(void) { /* * Although EDB9312 and EDB9315 do have IDE capability, they have * INTRQ line wired as pull-up, which makes using IDE interface * problematic. */ return machine_is_edb9312() || machine_is_edb9315() || machine_is_edb9315a(); } static void __init edb93xx_register_ide(void) { if (!edb93xx_has_ide()) return; ep93xx_register_ide(); } 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(); edb93xx_register_ide(); ep93xx_register_adc(); } #ifdef CONFIG_MACH_EDB9301 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <george@chas.com.ua> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <buytenh@wantstofly.org> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <hvr@gnu.org> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <hsweeten@visionengravers.com> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <toufeeq_hussain@infosys.com> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <buytenh@wantstofly.org> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .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 <buytenh@wantstofly.org> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS, .map_io = ep93xx_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .init_machine = edb93xx_init_machine, .restart = ep93xx_restart, MACHINE_END #endif