1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
22e192b24SSimon Glass /*
32e192b24SSimon Glass * Copyright (c) 2012 The Chromium OS Authors.
42e192b24SSimon Glass */
52e192b24SSimon Glass
62e192b24SSimon Glass /*
72e192b24SSimon Glass * IO space access commands.
82e192b24SSimon Glass */
92e192b24SSimon Glass
102e192b24SSimon Glass #include <common.h>
112e192b24SSimon Glass #include <command.h>
122e192b24SSimon Glass #include <asm/io.h>
132e192b24SSimon Glass
142e192b24SSimon Glass /*
152e192b24SSimon Glass * IO Display
162e192b24SSimon Glass *
172e192b24SSimon Glass * Syntax:
182e192b24SSimon Glass * iod{.b, .w, .l} {addr}
192e192b24SSimon Glass */
do_io_iod(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])202e192b24SSimon Glass int do_io_iod(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
212e192b24SSimon Glass {
222e192b24SSimon Glass ulong addr;
232e192b24SSimon Glass int size;
242e192b24SSimon Glass
252e192b24SSimon Glass if (argc != 2)
262e192b24SSimon Glass return CMD_RET_USAGE;
272e192b24SSimon Glass
282e192b24SSimon Glass size = cmd_get_data_size(argv[0], 4);
292e192b24SSimon Glass if (size < 0)
302e192b24SSimon Glass return 1;
312e192b24SSimon Glass
322e192b24SSimon Glass addr = simple_strtoul(argv[1], NULL, 16);
332e192b24SSimon Glass
342e192b24SSimon Glass printf("%04x: ", (u16) addr);
352e192b24SSimon Glass
362e192b24SSimon Glass if (size == 4)
372e192b24SSimon Glass printf("%08x\n", inl(addr));
382e192b24SSimon Glass else if (size == 2)
392e192b24SSimon Glass printf("%04x\n", inw(addr));
402e192b24SSimon Glass else
412e192b24SSimon Glass printf("%02x\n", inb(addr));
422e192b24SSimon Glass
432e192b24SSimon Glass return 0;
442e192b24SSimon Glass }
452e192b24SSimon Glass
do_io_iow(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])462e192b24SSimon Glass int do_io_iow(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
472e192b24SSimon Glass {
489398b8ceSTom Rini ulong addr, val;
499398b8ceSTom Rini int size;
502e192b24SSimon Glass
512e192b24SSimon Glass if (argc != 3)
522e192b24SSimon Glass return CMD_RET_USAGE;
532e192b24SSimon Glass
542e192b24SSimon Glass size = cmd_get_data_size(argv[0], 4);
552e192b24SSimon Glass if (size < 0)
562e192b24SSimon Glass return 1;
572e192b24SSimon Glass
582e192b24SSimon Glass addr = simple_strtoul(argv[1], NULL, 16);
592e192b24SSimon Glass val = simple_strtoul(argv[2], NULL, 16);
602e192b24SSimon Glass
612e192b24SSimon Glass if (size == 4)
622e192b24SSimon Glass outl((u32) val, addr);
632e192b24SSimon Glass else if (size == 2)
642e192b24SSimon Glass outw((u16) val, addr);
652e192b24SSimon Glass else
662e192b24SSimon Glass outb((u8) val, addr);
672e192b24SSimon Glass
682e192b24SSimon Glass return 0;
692e192b24SSimon Glass }
702e192b24SSimon Glass
712e192b24SSimon Glass /**************************************************/
722e192b24SSimon Glass U_BOOT_CMD(iod, 2, 0, do_io_iod,
732e192b24SSimon Glass "IO space display", "[.b, .w, .l] address");
742e192b24SSimon Glass
752e192b24SSimon Glass U_BOOT_CMD(iow, 3, 0, do_io_iow,
762e192b24SSimon Glass "IO space modify",
772e192b24SSimon Glass "[.b, .w, .l] address value");
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