[people/ms/u-boot.git] / drivers / misc / smsc_lpc47m.c

/*
 * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <asm/io.h>
#include <asm/pnp_def.h>

static void pnp_enter_conf_state(u16 dev)
{
	u16 port = dev >> 8;

	outb(0x55, port);
}

static void pnp_exit_conf_state(u16 dev)
{
	u16 port = dev >> 8;

	outb(0xaa, port);
}

void lpc47m_enable_serial(u16 dev, u16 iobase)
{
	pnp_enter_conf_state(dev);
	pnp_set_logical_device(dev);
	pnp_set_enable(dev, 0);
	pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
	pnp_set_enable(dev, 1);
	pnp_exit_conf_state(dev);
}
Commit	Line	Data
a2927e09 BM	1	/*
	2	* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
	3	*
	4	* SPDX-License-Identifier: GPL-2.0+
	5	*/
	6
	7	#include <common.h>
	8	#include <asm/io.h>
	9	#include <asm/pnp_def.h>
	10
	11	static void pnp_enter_conf_state(u16 dev)
	12	{
	13	u16 port = dev >> 8;
	14
	15	outb(0x55, port);
	16	}
	17
	18	static void pnp_exit_conf_state(u16 dev)
	19	{
	20	u16 port = dev >> 8;
	21
	22	outb(0xaa, port);
	23	}
	24
	25	void lpc47m_enable_serial(u16 dev, u16 iobase)
	26	{
	27	pnp_enter_conf_state(dev);
	28	pnp_set_logical_device(dev);
	29	pnp_set_enable(dev, 0);
	30	pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
	31	pnp_set_enable(dev, 1);
	32	pnp_exit_conf_state(dev);
	33	}