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832f5dacfa
Currently CONFIG_ARCH_HAVE_CUSTOM_GPIO_H is defined for all MIPS machines, and each machine type provides its own gpio.h. However only a handful really implement the GPIO API, most just forward everythings to gpiolib. The Alchemy machine is notable as it provides a system to allow implementing the GPIO API at the board level. But it is not used by any board currently supported, so it can also be removed. For most machine types we can just remove the custom gpio.h, as well as the custom wrappers if some exists. Some of the code found in the wrappers must be moved to the respective GPIO driver. A few more fixes are need in some drivers as they rely on linux/gpio.h to provides some machine specific definitions, or used asm/gpio.h instead of linux/gpio.h for the gpio API. Signed-off-by: Alban Bedel <albeu@free.fr> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Tejun Heo <tj@kernel.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Florian Fainelli <florian@openwrt.org> Cc: Manuel Lauss <manuel.lauss@gmail.com> Cc: Joe Perches <joe@perches.com> Cc: Daniel Walter <dwalter@google.com> Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Huacai Chen <chenhc@lemote.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Varka Bhadram <varkabhadram@gmail.com> Cc: Masanari Iida <standby24x7@gmail.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Michael Buesch <m@bues.ch> Cc: abdoulaye berthe <berthe.ab@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: linux-ide@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: netdev@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10828/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
315 lines
7.9 KiB
C
315 lines
7.9 KiB
C
/*
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* MTX-1 platform devices registration (Au1500)
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*
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* Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/leds.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <mtd/mtd-abi.h>
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#include <asm/bootinfo.h>
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#include <asm/reboot.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <asm/mach-au1x00/gpio-au1000.h>
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#include <asm/mach-au1x00/au1xxx_eth.h>
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#include <prom.h>
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const char *get_system_type(void)
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{
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return "MTX-1";
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}
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void __init prom_init(void)
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{
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unsigned char *memsize_str;
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unsigned long memsize;
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prom_argc = fw_arg0;
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prom_argv = (char **)fw_arg1;
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prom_envp = (char **)fw_arg2;
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prom_init_cmdline();
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memsize_str = prom_getenv("memsize");
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if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
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memsize = 0x04000000;
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add_memory_region(0, memsize, BOOT_MEM_RAM);
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}
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void prom_putchar(unsigned char c)
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{
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alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
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}
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static void mtx1_reset(char *c)
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{
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/* Jump to the reset vector */
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__asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
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}
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static void mtx1_power_off(void)
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{
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while (1)
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asm volatile (
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" .set mips32 \n"
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" wait \n"
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" .set mips0 \n");
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}
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void __init board_setup(void)
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{
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#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
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/* Enable USB power switch */
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alchemy_gpio_direction_output(204, 0);
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#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
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/* Initialize sys_pinfunc */
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alchemy_wrsys(SYS_PF_NI2, AU1000_SYS_PINFUNC);
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/* Initialize GPIO */
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alchemy_wrsys(~0, AU1000_SYS_TRIOUTCLR);
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alchemy_gpio_direction_output(0, 0); /* Disable M66EN (PCI 66MHz) */
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alchemy_gpio_direction_output(3, 1); /* Disable PCI CLKRUN# */
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alchemy_gpio_direction_output(1, 1); /* Enable EXT_IO3 */
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alchemy_gpio_direction_output(5, 0); /* Disable eth PHY TX_ER */
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/* Enable LED and set it to green */
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alchemy_gpio_direction_output(211, 1); /* green on */
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alchemy_gpio_direction_output(212, 0); /* red off */
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pm_power_off = mtx1_power_off;
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_machine_halt = mtx1_power_off;
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_machine_restart = mtx1_reset;
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printk(KERN_INFO "4G Systems MTX-1 Board\n");
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}
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/******************************************************************************/
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static struct gpio_keys_button mtx1_gpio_button[] = {
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{
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.gpio = 207,
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.code = BTN_0,
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.desc = "System button",
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}
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};
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static struct gpio_keys_platform_data mtx1_buttons_data = {
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.buttons = mtx1_gpio_button,
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.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
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};
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static struct platform_device mtx1_button = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &mtx1_buttons_data,
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}
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};
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static struct resource mtx1_wdt_res[] = {
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[0] = {
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.start = 215,
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.end = 215,
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.name = "mtx1-wdt-gpio",
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device mtx1_wdt = {
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.name = "mtx1-wdt",
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.id = 0,
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.num_resources = ARRAY_SIZE(mtx1_wdt_res),
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.resource = mtx1_wdt_res,
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};
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static struct gpio_led default_leds[] = {
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{
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.name = "mtx1:green",
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.gpio = 211,
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}, {
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.name = "mtx1:red",
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.gpio = 212,
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},
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};
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static struct gpio_led_platform_data mtx1_led_data = {
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.num_leds = ARRAY_SIZE(default_leds),
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.leds = default_leds,
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};
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static struct platform_device mtx1_gpio_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &mtx1_led_data,
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}
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};
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static struct mtd_partition mtx1_mtd_partitions[] = {
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{
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.name = "filesystem",
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.size = 0x01C00000,
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.offset = 0,
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},
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{
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.name = "yamon",
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.size = 0x00100000,
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.offset = MTDPART_OFS_APPEND,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "kernel",
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.size = 0x002c0000,
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.offset = MTDPART_OFS_APPEND,
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},
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{
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.name = "yamon env",
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.size = 0x00040000,
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.offset = MTDPART_OFS_APPEND,
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},
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};
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static struct physmap_flash_data mtx1_flash_data = {
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.width = 4,
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.nr_parts = 4,
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.parts = mtx1_mtd_partitions,
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};
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static struct resource mtx1_mtd_resource = {
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.start = 0x1e000000,
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.end = 0x1fffffff,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device mtx1_mtd = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &mtx1_flash_data,
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},
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.num_resources = 1,
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.resource = &mtx1_mtd_resource,
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};
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static struct resource alchemy_pci_host_res[] = {
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[0] = {
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.start = AU1500_PCI_PHYS_ADDR,
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.end = AU1500_PCI_PHYS_ADDR + 0xfff,
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.flags = IORESOURCE_MEM,
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},
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};
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static int mtx1_pci_idsel(unsigned int devsel, int assert)
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{
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/* This function is only necessary to support a proprietary Cardbus
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* adapter on the mtx-1 "singleboard" variant. It triggers a custom
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* logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
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*/
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udelay(1);
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if (assert && devsel != 0)
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/* Suppress signal to Cardbus */
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alchemy_gpio_set_value(1, 0); /* set EXT_IO3 OFF */
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else
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alchemy_gpio_set_value(1, 1); /* set EXT_IO3 ON */
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udelay(1);
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return 1;
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}
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static const char mtx1_irqtab[][5] = {
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[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
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[1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
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[2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
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[3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
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[4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
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[5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
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[6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
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[7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
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};
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static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
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{
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return mtx1_irqtab[slot][pin];
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}
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static struct alchemy_pci_platdata mtx1_pci_pd = {
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.board_map_irq = mtx1_map_pci_irq,
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.board_pci_idsel = mtx1_pci_idsel,
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.pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
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PCI_CONFIG_CH |
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#if defined(__MIPSEB__)
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PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
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#else
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0,
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#endif
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};
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static struct platform_device mtx1_pci_host = {
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.dev.platform_data = &mtx1_pci_pd,
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.name = "alchemy-pci",
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.id = 0,
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.num_resources = ARRAY_SIZE(alchemy_pci_host_res),
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.resource = alchemy_pci_host_res,
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};
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static struct platform_device *mtx1_devs[] __initdata = {
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&mtx1_pci_host,
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&mtx1_gpio_leds,
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&mtx1_wdt,
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&mtx1_button,
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&mtx1_mtd,
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};
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static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
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.phy_search_highest_addr = 1,
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.phy1_search_mac0 = 1,
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};
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static int __init mtx1_register_devices(void)
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{
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int rc;
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irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
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irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
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irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
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irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
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irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
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au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
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rc = gpio_request(mtx1_gpio_button[0].gpio,
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mtx1_gpio_button[0].desc);
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if (rc < 0) {
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printk(KERN_INFO "mtx1: failed to request %d\n",
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mtx1_gpio_button[0].gpio);
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goto out;
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}
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gpio_direction_input(mtx1_gpio_button[0].gpio);
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out:
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return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
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}
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arch_initcall(mtx1_register_devices);
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