[thirdparty/u-boot.git] / cmd / io.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 2012 The Chromium OS Authors.
 */

/*
 * IO space access commands.
 */

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

/*
 * IO Display
 *
 * Syntax:
 *	iod{.b, .w, .l} {addr}
 */
int do_io_iod(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
	ulong addr;
	int size;

	if (argc != 2)
		return CMD_RET_USAGE;

	size = cmd_get_data_size(argv[0], 4);
	if (size < 0)
		return 1;

	addr = simple_strtoul(argv[1], NULL, 16);

	printf("%04x: ", (u16) addr);

	if (size == 4)
		printf("%08x\n", inl(addr));
	else if (size == 2)
		printf("%04x\n", inw(addr));
	else
		printf("%02x\n", inb(addr));

	return 0;
}

int do_io_iow(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
	ulong addr, val;
	int size;

	if (argc != 3)
		return CMD_RET_USAGE;

	size = cmd_get_data_size(argv[0], 4);
	if (size < 0)
		return 1;

	addr = simple_strtoul(argv[1], NULL, 16);
	val = simple_strtoul(argv[2], NULL, 16);

	if (size == 4)
		outl((u32) val, addr);
	else if (size == 2)
		outw((u16) val, addr);
	else
		outb((u8) val, addr);

	return 0;
}

/**************************************************/
U_BOOT_CMD(iod, 2, 0, do_io_iod,
	   "IO space display", "[.b, .w, .l] address");

U_BOOT_CMD(iow, 3, 0, do_io_iow,
	   "IO space modify",
	   "[.b, .w, .l] address value");
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
9ad557be VB	2	/*
9ad557be VB	3	* Copyright (c) 2012 The Chromium OS Authors.
9ad557be VB	4	*/
	5
	6	/*
	7	* IO space access commands.
	8	*/
	9
	10	#include <common.h>
	11	#include <command.h>
	12	#include <asm/io.h>
	13
	14	/*
	15	* IO Display
	16	*
	17	* Syntax:
	18	* iod{.b, .w, .l} {addr}
	19	*/
	20	int do_io_iod(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	21	{
	22	ulong addr;
	23	int size;
	24
	25	if (argc != 2)
	26	return CMD_RET_USAGE;
	27
	28	size = cmd_get_data_size(argv[0], 4);
	29	if (size < 0)
	30	return 1;
	31
	32	addr = simple_strtoul(argv[1], NULL, 16);
	33
	34	printf("%04x: ", (u16) addr);
	35
	36	if (size == 4)
	37	printf("%08x\n", inl(addr));
	38	else if (size == 2)
	39	printf("%04x\n", inw(addr));
	40	else
	41	printf("%02x\n", inb(addr));
	42
	43	return 0;
	44	}
	45
	46	int do_io_iow(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	47	{
9398b8ce TR	48	ulong addr, val;
9398b8ce TR	49	int size;
9ad557be VB	50
	51	if (argc != 3)
	52	return CMD_RET_USAGE;
	53
	54	size = cmd_get_data_size(argv[0], 4);
	55	if (size < 0)
	56	return 1;
	57
	58	addr = simple_strtoul(argv[1], NULL, 16);
	59	val = simple_strtoul(argv[2], NULL, 16);
	60
	61	if (size == 4)
	62	outl((u32) val, addr);
	63	else if (size == 2)
	64	outw((u16) val, addr);
	65	else
	66	outb((u8) val, addr);
	67
	68	return 0;
	69	}
	70
	71	/**************************************************/
	72	U_BOOT_CMD(iod, 2, 0, do_io_iod,
d641819c	73	"IO space display", "[.b, .w, .l] address");
9ad557be VB	74
9ad557be VB	75	U_BOOT_CMD(iow, 3, 0, do_io_iow,
d641819c BM	76	"IO space modify",
d641819c BM	77	"[.b, .w, .l] address value");