From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/arm/mach-ep93xx/edb93xx.c | 344 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 344 insertions(+) create mode 100644 arch/arm/mach-ep93xx/edb93xx.c (limited to 'arch/arm/mach-ep93xx/edb93xx.c') diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c new file mode 100644 index 0000000000..4b90899a66 --- /dev/null +++ b/arch/arm/mach-ep93xx/edb93xx.c @@ -0,0 +1,344 @@ +// 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 + * + * 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 + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include "hardware.h" +#include +#include +#include "gpio-ep93xx.h" + +#include +#include + +#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 */ + .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 */ + .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 */ + .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 */ + .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 */ + .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 */ + .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 */ + .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 */ + .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 -- cgit v1.2.3