diff options
Diffstat (limited to 'kernel/arch/mips/loongson/lemote-2f/reset.c')
-rw-r--r-- | kernel/arch/mips/loongson/lemote-2f/reset.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/kernel/arch/mips/loongson/lemote-2f/reset.c b/kernel/arch/mips/loongson/lemote-2f/reset.c deleted file mode 100644 index a26ca7fcd..000000000 --- a/kernel/arch/mips/loongson/lemote-2f/reset.c +++ /dev/null @@ -1,159 +0,0 @@ -/* Board-specific reboot/shutdown routines - * - * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca> - * - * Copyright (C) 2009 Lemote Inc. - * Author: Wu Zhangjin, wuzhangjin@gmail.com - * - * 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. - */ - -#include <linux/io.h> -#include <linux/delay.h> -#include <linux/types.h> - -#include <asm/bootinfo.h> - -#include <loongson.h> - -#include <cs5536/cs5536.h> -#include "ec_kb3310b.h" - -static void reset_cpu(void) -{ - /* - * reset cpu to full speed, this is needed when enabling cpu frequency - * scalling - */ - LOONGSON_CHIPCFG(0) |= 0x7; -} - -/* reset support for fuloong2f */ - -static void fl2f_reboot(void) -{ - reset_cpu(); - - /* send a reset signal to south bridge. - * - * NOTE: if enable "Power Management" in kernel, rtl8169 will not reset - * normally with this reset operation and it will not work in PMON, but - * you can type halt command and then reboot, seems the hardware reset - * logic not work normally. - */ - { - u32 hi, lo; - _rdmsr(DIVIL_MSR_REG(DIVIL_SOFT_RESET), &hi, &lo); - lo |= 0x00000001; - _wrmsr(DIVIL_MSR_REG(DIVIL_SOFT_RESET), hi, lo); - } -} - -static void fl2f_shutdown(void) -{ - u32 hi, lo, val; - int gpio_base; - - /* get gpio base */ - _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_GPIO), &hi, &lo); - gpio_base = lo & 0xff00; - - /* make cs5536 gpio13 output enable */ - val = inl(gpio_base + GPIOL_OUT_EN); - val &= ~(1 << (16 + 13)); - val |= (1 << 13); - outl(val, gpio_base + GPIOL_OUT_EN); - mmiowb(); - /* make cs5536 gpio13 output low level voltage. */ - val = inl(gpio_base + GPIOL_OUT_VAL) & ~(1 << (13)); - val |= (1 << (16 + 13)); - outl(val, gpio_base + GPIOL_OUT_VAL); - mmiowb(); -} - -/* reset support for yeeloong2f and mengloong2f notebook */ - -static void ml2f_reboot(void) -{ - reset_cpu(); - - /* sending an reset signal to EC(embedded controller) */ - ec_write(REG_RESET, BIT_RESET_ON); -} - -#define yl2f89_reboot ml2f_reboot - -/* menglong(7inches) laptop has different shutdown logic from 8.9inches */ -#define EC_SHUTDOWN_IO_PORT_HIGH 0xff2d -#define EC_SHUTDOWN_IO_PORT_LOW 0xff2e -#define EC_SHUTDOWN_IO_PORT_DATA 0xff2f -#define REG_SHUTDOWN_HIGH 0xFC -#define REG_SHUTDOWN_LOW 0x29 -#define BIT_SHUTDOWN_ON (1 << 1) - -static void ml2f_shutdown(void) -{ - u8 val; - u64 i; - - outb(REG_SHUTDOWN_HIGH, EC_SHUTDOWN_IO_PORT_HIGH); - outb(REG_SHUTDOWN_LOW, EC_SHUTDOWN_IO_PORT_LOW); - mmiowb(); - val = inb(EC_SHUTDOWN_IO_PORT_DATA); - outb(val & (~BIT_SHUTDOWN_ON), EC_SHUTDOWN_IO_PORT_DATA); - mmiowb(); - /* need enough wait here... how many microseconds needs? */ - for (i = 0; i < 0x10000; i++) - delay(); - outb(val | BIT_SHUTDOWN_ON, EC_SHUTDOWN_IO_PORT_DATA); - mmiowb(); -} - -static void yl2f89_shutdown(void) -{ - /* cpu-gpio0 output low */ - LOONGSON_GPIODATA &= ~0x00000001; - /* cpu-gpio0 as output */ - LOONGSON_GPIOIE &= ~0x00000001; -} - -void mach_prepare_reboot(void) -{ - switch (mips_machtype) { - case MACH_LEMOTE_FL2F: - case MACH_LEMOTE_NAS: - case MACH_LEMOTE_LL2F: - fl2f_reboot(); - break; - case MACH_LEMOTE_ML2F7: - ml2f_reboot(); - break; - case MACH_LEMOTE_YL2F89: - yl2f89_reboot(); - break; - default: - break; - } -} - -void mach_prepare_shutdown(void) -{ - switch (mips_machtype) { - case MACH_LEMOTE_FL2F: - case MACH_LEMOTE_NAS: - case MACH_LEMOTE_LL2F: - fl2f_shutdown(); - break; - case MACH_LEMOTE_ML2F7: - ml2f_shutdown(); - break; - case MACH_LEMOTE_YL2F89: - yl2f89_shutdown(); - break; - default: - break; - } -} |