mirror of https://gitee.com/openkylin/linux.git
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/*
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* arch/arm/mach-kirkwood/nsa-310-setup.c
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*
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* ZyXEL NSA-310 Setup
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/kirkwood.h>
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#include "common.h"
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#include "mpp.h"
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#define NSA310_GPIO_USB_POWER_OFF 21
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#define NSA310_GPIO_POWER_OFF 48
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static unsigned int nsa310_mpp_config[] __initdata = {
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MPP12_GPIO, /* led esata green */
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MPP13_GPIO, /* led esata red */
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MPP15_GPIO, /* led usb green */
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MPP16_GPIO, /* led usb red */
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MPP21_GPIO, /* control usb power off */
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MPP28_GPIO, /* led sys green */
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MPP29_GPIO, /* led sys red */
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MPP36_GPIO, /* key reset */
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MPP37_GPIO, /* key copy */
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MPP39_GPIO, /* led copy green */
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MPP40_GPIO, /* led copy red */
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MPP41_GPIO, /* led hdd green */
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MPP42_GPIO, /* led hdd red */
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MPP44_GPIO, /* ?? */
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MPP46_GPIO, /* key power */
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MPP48_GPIO, /* control power off */
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0
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};
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static struct i2c_board_info __initdata nsa310_i2c_info[] = {
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{ I2C_BOARD_INFO("adt7476", 0x2e) },
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};
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static void nsa310_power_off(void)
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{
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gpio_set_value(NSA310_GPIO_POWER_OFF, 1);
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}
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static int __init nsa310_gpio_request(unsigned int gpio, unsigned long flags,
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const char *label)
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{
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int err;
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err = gpio_request_one(gpio, flags, label);
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if (err)
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pr_err("NSA-310: can't setup GPIO%u (%s), err=%d\n",
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gpio, label, err);
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return err;
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}
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static void __init nsa310_gpio_init(void)
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{
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int err;
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err = nsa310_gpio_request(NSA310_GPIO_POWER_OFF, GPIOF_OUT_INIT_LOW,
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"Power Off");
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if (!err)
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pm_power_off = nsa310_power_off;
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nsa310_gpio_request(NSA310_GPIO_USB_POWER_OFF, GPIOF_OUT_INIT_LOW,
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"USB Power Off");
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}
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void __init nsa310_init(void)
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{
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u32 dev, rev;
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kirkwood_mpp_conf(nsa310_mpp_config);
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nsa310_gpio_init();
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kirkwood_pcie_id(&dev, &rev);
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i2c_register_board_info(0, ARRAY_AND_SIZE(nsa310_i2c_info));
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}
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static int __init nsa310_pci_init(void)
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{
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if (of_machine_is_compatible("zyxel,nsa310"))
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kirkwood_pcie_init(KW_PCIE0);
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return 0;
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}
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subsys_initcall(nsa310_pci_init);
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