diff options
Diffstat (limited to 'arch/mips/alchemy/board-mtx1.c')
| -rw-r--r-- | arch/mips/alchemy/board-mtx1.c | 216 |
1 files changed, 127 insertions, 89 deletions
diff --git a/arch/mips/alchemy/board-mtx1.c b/arch/mips/alchemy/board-mtx1.c index 85bb75669b0d..cb6be58808a0 100644 --- a/arch/mips/alchemy/board-mtx1.c +++ b/arch/mips/alchemy/board-mtx1.c @@ -1,36 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * MTX-1 platform devices registration (Au1500) * * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org> - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/platform_device.h> -#include <linux/leds.h> -#include <linux/gpio.h> -#include <linux/gpio_keys.h> +#include <linux/gpio/machine.h> +#include <linux/gpio/property.h> #include <linux/input.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> #include <mtd/mtd-abi.h> #include <asm/bootinfo.h> #include <asm/reboot.h> +#include <asm/setup.h> #include <asm/mach-au1x00/au1000.h> #include <asm/mach-au1x00/gpio-au1000.h> #include <asm/mach-au1x00/au1xxx_eth.h> @@ -41,24 +28,7 @@ const char *get_system_type(void) return "MTX-1"; } -void __init prom_init(void) -{ - unsigned char *memsize_str; - unsigned long memsize; - - prom_argc = fw_arg0; - prom_argv = (char **)fw_arg1; - prom_envp = (char **)fw_arg2; - - prom_init_cmdline(); - - memsize_str = prom_getenv("memsize"); - if (!memsize_str || kstrtoul(memsize_str, 0, &memsize)) - memsize = 0x04000000; - add_memory_region(0, memsize, BOOT_MEM_RAM); -} - -void prom_putchar(unsigned char c) +void prom_putchar(char c) { alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } @@ -108,66 +78,134 @@ void __init board_setup(void) /******************************************************************************/ -static struct gpio_keys_button mtx1_gpio_button[] = { - { - .gpio = 207, - .code = BTN_0, - .desc = "System button", - } +static const struct software_node mtx1_gpiochip_node = { + .name = "alchemy-gpio2", }; -static struct gpio_keys_platform_data mtx1_buttons_data = { - .buttons = mtx1_gpio_button, - .nbuttons = ARRAY_SIZE(mtx1_gpio_button), +static const struct software_node mtx1_gpio_keys_node = { + .name = "mtx1-gpio-keys", }; -static struct platform_device mtx1_button = { - .name = "gpio-keys", - .id = -1, - .dev = { - .platform_data = &mtx1_buttons_data, - } +static const struct property_entry mtx1_button_props[] = { + PROPERTY_ENTRY_U32("linux,code", BTN_0), + PROPERTY_ENTRY_GPIO("gpios", &mtx1_gpiochip_node, 7, GPIO_ACTIVE_HIGH), + PROPERTY_ENTRY_STRING("label", "System button"), + { } }; -static struct resource mtx1_wdt_res[] = { - [0] = { - .start = 215, - .end = 215, - .name = "mtx1-wdt-gpio", - .flags = IORESOURCE_IRQ, +static const struct software_node mtx1_button_node = { + .parent = &mtx1_gpio_keys_node, + .properties = mtx1_button_props, +}; + +static const struct software_node *mtx1_gpio_keys_swnodes[] __initconst = { + &mtx1_gpio_keys_node, + &mtx1_button_node, + NULL +}; + +static void __init mtx1_keys_init(void) +{ + struct platform_device_info keys_info = { + .name = "gpio-keys", + .id = PLATFORM_DEVID_NONE, + }; + struct platform_device *pd; + int err; + + err = software_node_register_node_group(mtx1_gpio_keys_swnodes); + if (err) { + pr_err("failed to register gpio-keys software nodes: %d\n", err); + return; } + + keys_info.fwnode = software_node_fwnode(&mtx1_gpio_keys_node); + + pd = platform_device_register_full(&keys_info); + err = PTR_ERR_OR_ZERO(pd); + if (err) + pr_err("failed to create gpio-keys device: %d\n", err); +} + +/* Global number 215 is offset 15 on Alchemy GPIO 2 */ +static const struct property_entry mtx1_wdt_props[] = { + PROPERTY_ENTRY_GPIO("gpios", &mtx1_gpiochip_node, 15, GPIO_ACTIVE_HIGH), + { } }; -static struct platform_device mtx1_wdt = { +static struct platform_device_info mtx1_wdt_info __initconst = { .name = "mtx1-wdt", .id = 0, - .num_resources = ARRAY_SIZE(mtx1_wdt_res), - .resource = mtx1_wdt_res, + .properties = mtx1_wdt_props, }; -static struct gpio_led default_leds[] = { - { - .name = "mtx1:green", - .gpio = 211, - }, { - .name = "mtx1:red", - .gpio = 212, - }, +static void __init mtx1_wdt_init(void) +{ + struct platform_device *pd; + int err; + + pd = platform_device_register_full(&mtx1_wdt_info); + err = PTR_ERR_OR_ZERO(pd); + if (err) + pr_err("failed to create gpio-keys device: %d\n", err); +} + +static const struct software_node mtx1_gpio_leds_node = { + .name = "mtx1-leds", }; -static struct gpio_led_platform_data mtx1_led_data = { - .num_leds = ARRAY_SIZE(default_leds), - .leds = default_leds, +static const struct property_entry mtx1_green_led_props[] = { + PROPERTY_ENTRY_GPIO("gpios", &mtx1_gpiochip_node, 11, GPIO_ACTIVE_HIGH), + { } }; -static struct platform_device mtx1_gpio_leds = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &mtx1_led_data, - } +static const struct software_node mtx1_green_led_node = { + .name = "mtx1:green", + .parent = &mtx1_gpio_leds_node, + .properties = mtx1_green_led_props, +}; + +static const struct property_entry mtx1_red_led_props[] = { + PROPERTY_ENTRY_GPIO("gpios", &mtx1_gpiochip_node, 12, GPIO_ACTIVE_HIGH), + { } +}; + +static const struct software_node mtx1_red_led_node = { + .name = "mtx1:red", + .parent = &mtx1_gpio_leds_node, + .properties = mtx1_red_led_props, +}; + +static const struct software_node *mtx1_gpio_leds_swnodes[] = { + &mtx1_gpio_leds_node, + &mtx1_green_led_node, + &mtx1_red_led_node, + NULL }; +static void __init mtx1_leds_init(void) +{ + struct platform_device_info led_info = { + .name = "leds-gpio", + .id = PLATFORM_DEVID_NONE, + }; + struct platform_device *led_dev; + int err; + + err = software_node_register_node_group(mtx1_gpio_leds_swnodes); + if (err) { + pr_err("failed to register LED software nodes: %d\n", err); + return; + } + + led_info.fwnode = software_node_fwnode(&mtx1_gpio_leds_node); + + led_dev = platform_device_register_full(&led_info); + err = PTR_ERR_OR_ZERO(led_dev); + if (err) + pr_err("failed to create LED device: %d\n", err); +} + static struct mtd_partition mtx1_mtd_partitions[] = { { .name = "filesystem", @@ -277,9 +315,6 @@ static struct platform_device mtx1_pci_host = { static struct platform_device *mtx1_devs[] __initdata = { &mtx1_pci_host, - &mtx1_gpio_leds, - &mtx1_wdt, - &mtx1_button, &mtx1_mtd, }; @@ -300,15 +335,18 @@ static int __init mtx1_register_devices(void) au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata); - rc = gpio_request(mtx1_gpio_button[0].gpio, - mtx1_gpio_button[0].desc); - if (rc < 0) { - printk(KERN_INFO "mtx1: failed to request %d\n", - mtx1_gpio_button[0].gpio); - goto out; - } - gpio_direction_input(mtx1_gpio_button[0].gpio); -out: - return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs)); + rc = software_node_register(&mtx1_gpiochip_node); + if (rc) + return rc; + + rc = platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs)); + if (rc) + return rc; + + mtx1_leds_init(); + mtx1_wdt_init(); + mtx1_keys_init(); + + return 0; } arch_initcall(mtx1_register_devices); |