forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
1.3 KiB
77 lines
1.3 KiB
// 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");
|
|
|