diff options
author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2019-10-20 22:43:14 +0800 |
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committer | Paul Burton <paulburton@kernel.org> | 2019-11-01 14:30:52 -0700 |
commit | 71e2f4dd5a65bd8dbca0b77661e75eea471168f8 (patch) | |
tree | e7107d2996f7ba8ec282190a49c557598acd6f88 /arch/mips/loongson64/lemote-2f/ec_kb3310b.c | |
parent | 268a2d60013049cfd9a0aada77284aa6ea8ad26a (diff) |
MIPS: Fork loongson2ef from loongson64
As later model of GSx64 family processors including 2-series-soc have
similar design with initial loongson3a while loongson2e/f seems less
identical, we separate loongson2e/f support code out of mach-loongson64
to make our life easier.
This patch contains mostly file moving works.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
[paulburton@kernel.org: Squash in the MAINTAINERS updates]
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: paul.burton@mips.com
Diffstat (limited to 'arch/mips/loongson64/lemote-2f/ec_kb3310b.c')
-rw-r--r-- | arch/mips/loongson64/lemote-2f/ec_kb3310b.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/mips/loongson64/lemote-2f/ec_kb3310b.c b/arch/mips/loongson64/lemote-2f/ec_kb3310b.c deleted file mode 100644 index d138220e96a2..000000000000 --- a/arch/mips/loongson64/lemote-2f/ec_kb3310b.c +++ /dev/null @@ -1,125 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Basic KB3310B Embedded Controller support for the YeeLoong 2F netbook - * - * Copyright (C) 2008 Lemote Inc. - * Author: liujl <liujl@lemote.com>, 2008-04-20 - */ - -#include <linux/io.h> -#include <linux/export.h> -#include <linux/spinlock.h> -#include <linux/delay.h> - -#include "ec_kb3310b.h" - -static DEFINE_SPINLOCK(index_access_lock); -static DEFINE_SPINLOCK(port_access_lock); - -unsigned char ec_read(unsigned short addr) -{ - unsigned char value; - unsigned long flags; - - spin_lock_irqsave(&index_access_lock, flags); - outb((addr & 0xff00) >> 8, EC_IO_PORT_HIGH); - outb((addr & 0x00ff), EC_IO_PORT_LOW); - value = inb(EC_IO_PORT_DATA); - spin_unlock_irqrestore(&index_access_lock, flags); - - return value; -} -EXPORT_SYMBOL_GPL(ec_read); - -void ec_write(unsigned short addr, unsigned char val) -{ - unsigned long flags; - - spin_lock_irqsave(&index_access_lock, flags); - outb((addr & 0xff00) >> 8, EC_IO_PORT_HIGH); - outb((addr & 0x00ff), EC_IO_PORT_LOW); - outb(val, EC_IO_PORT_DATA); - /* flush the write action */ - inb(EC_IO_PORT_DATA); - spin_unlock_irqrestore(&index_access_lock, flags); -} -EXPORT_SYMBOL_GPL(ec_write); - -/* - * This function is used for EC command writes and corresponding status queries. - */ -int ec_query_seq(unsigned char cmd) -{ - int timeout; - unsigned char status; - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&port_access_lock, flags); - - /* make chip goto reset mode */ - udelay(EC_REG_DELAY); - outb(cmd, EC_CMD_PORT); - udelay(EC_REG_DELAY); - - /* check if the command is received by ec */ - timeout = EC_CMD_TIMEOUT; - status = inb(EC_STS_PORT); - while (timeout-- && (status & (1 << 1))) { - status = inb(EC_STS_PORT); - udelay(EC_REG_DELAY); - } - - spin_unlock_irqrestore(&port_access_lock, flags); - - if (timeout <= 0) { - printk(KERN_ERR "%s: deadable error : timeout...\n", __func__); - ret = -EINVAL; - } else - printk(KERN_INFO - "(%x/%d)ec issued command %d status : 0x%x\n", - timeout, EC_CMD_TIMEOUT - timeout, cmd, status); - - return ret; -} -EXPORT_SYMBOL_GPL(ec_query_seq); - -/* - * Send query command to EC to get the proper event number - */ -int ec_query_event_num(void) -{ - return ec_query_seq(CMD_GET_EVENT_NUM); -} -EXPORT_SYMBOL(ec_query_event_num); - -/* - * Get event number from EC - * - * NOTE: This routine must follow the query_event_num function in the - * interrupt. - */ -int ec_get_event_num(void) -{ - int timeout = 100; - unsigned char value; - unsigned char status; - - udelay(EC_REG_DELAY); - status = inb(EC_STS_PORT); - udelay(EC_REG_DELAY); - while (timeout-- && !(status & (1 << 0))) { - status = inb(EC_STS_PORT); - udelay(EC_REG_DELAY); - } - if (timeout <= 0) { - pr_info("%s: get event number timeout.\n", __func__); - - return -EINVAL; - } - value = inb(EC_DAT_PORT); - udelay(EC_REG_DELAY); - - return value; -} -EXPORT_SYMBOL(ec_get_event_num); |