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 */ 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 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