| // 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 = { |
| .gpio_nreset = -EINVAL, /* filled in later */ |
| }; |
| |
| 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 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; |
| |
| 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 |
