12e192b24SSimon Glass /*
22e192b24SSimon Glass * Copyright (c) 2012 The Chromium OS Authors.
32e192b24SSimon Glass *
42e192b24SSimon Glass * SPDX-License-Identifier: GPL-2.0+
52e192b24SSimon Glass */
62e192b24SSimon Glass
72e192b24SSimon Glass /*
82e192b24SSimon Glass * IO space access commands.
92e192b24SSimon Glass */
102e192b24SSimon Glass
112e192b24SSimon Glass #include <common.h>
122e192b24SSimon Glass #include <command.h>
132e192b24SSimon Glass #include <asm/io.h>
142e192b24SSimon Glass
152e192b24SSimon Glass /*
162e192b24SSimon Glass * IO Display
172e192b24SSimon Glass *
182e192b24SSimon Glass * Syntax:
192e192b24SSimon Glass * iod{.b, .w, .l} {addr}
202e192b24SSimon Glass */
do_io_iod(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])212e192b24SSimon Glass int do_io_iod(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
222e192b24SSimon Glass {
232e192b24SSimon Glass ulong addr;
242e192b24SSimon Glass int size;
252e192b24SSimon Glass
262e192b24SSimon Glass if (argc != 2)
272e192b24SSimon Glass return CMD_RET_USAGE;
282e192b24SSimon Glass
292e192b24SSimon Glass size = cmd_get_data_size(argv[0], 4);
302e192b24SSimon Glass if (size < 0)
312e192b24SSimon Glass return 1;
322e192b24SSimon Glass
332e192b24SSimon Glass addr = simple_strtoul(argv[1], NULL, 16);
342e192b24SSimon Glass
352e192b24SSimon Glass printf("%04x: ", (u16) addr);
362e192b24SSimon Glass
372e192b24SSimon Glass if (size == 4)
382e192b24SSimon Glass printf("%08x\n", inl(addr));
392e192b24SSimon Glass else if (size == 2)
402e192b24SSimon Glass printf("%04x\n", inw(addr));
412e192b24SSimon Glass else
422e192b24SSimon Glass printf("%02x\n", inb(addr));
432e192b24SSimon Glass
442e192b24SSimon Glass return 0;
452e192b24SSimon Glass }
462e192b24SSimon Glass
do_io_iow(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])472e192b24SSimon Glass int do_io_iow(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
482e192b24SSimon Glass {
49*9398b8ceSTom Rini ulong addr, val;
50*9398b8ceSTom Rini int size;
512e192b24SSimon Glass
522e192b24SSimon Glass if (argc != 3)
532e192b24SSimon Glass return CMD_RET_USAGE;
542e192b24SSimon Glass
552e192b24SSimon Glass size = cmd_get_data_size(argv[0], 4);
562e192b24SSimon Glass if (size < 0)
572e192b24SSimon Glass return 1;
582e192b24SSimon Glass
592e192b24SSimon Glass addr = simple_strtoul(argv[1], NULL, 16);
602e192b24SSimon Glass val = simple_strtoul(argv[2], NULL, 16);
612e192b24SSimon Glass
622e192b24SSimon Glass if (size == 4)
632e192b24SSimon Glass outl((u32) val, addr);
642e192b24SSimon Glass else if (size == 2)
652e192b24SSimon Glass outw((u16) val, addr);
662e192b24SSimon Glass else
672e192b24SSimon Glass outb((u8) val, addr);
682e192b24SSimon Glass
692e192b24SSimon Glass return 0;
702e192b24SSimon Glass }
712e192b24SSimon Glass
722e192b24SSimon Glass /**************************************************/
732e192b24SSimon Glass U_BOOT_CMD(iod, 2, 0, do_io_iod,
742e192b24SSimon Glass "IO space display", "[.b, .w, .l] address");
752e192b24SSimon Glass
762e192b24SSimon Glass U_BOOT_CMD(iow, 3, 0, do_io_iow,
772e192b24SSimon Glass "IO space modify",
782e192b24SSimon Glass "[.b, .w, .l] address value");
79