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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
126 lines
2.4 KiB
C
126 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2012 The Chromium OS Authors.
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*/
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/*
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* IO space access commands.
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*/
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#include <common.h>
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#include <command.h>
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#include <display_options.h>
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#include <asm/io.h>
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/* Display values from last command */
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static ulong last_addr, last_size;
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static ulong last_length = 0x40;
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static ulong base_address;
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#define DISP_LINE_LEN 16
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/*
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* IO Display
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*
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* Syntax:
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* iod{.b, .w, .l} {addr}
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*/
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int do_io_iod(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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ulong addr, length, bytes;
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u8 buf[DISP_LINE_LEN];
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int size, todo;
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/*
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* We use the last specified parameters, unless new ones are
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* entered.
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*/
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addr = last_addr;
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size = last_size;
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length = last_length;
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if (argc < 2)
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return CMD_RET_USAGE;
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if ((flag & CMD_FLAG_REPEAT) == 0) {
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/*
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* New command specified. Check for a size specification.
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* Defaults to long if no or incorrect specification.
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*/
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size = cmd_get_data_size(argv[0], 4);
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if (size < 0)
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return 1;
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/* Address is specified since argc > 1 */
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addr = hextoul(argv[1], NULL);
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addr += base_address;
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/*
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* If another parameter, it is the length to display.
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* Length is the number of objects, not number of bytes.
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*/
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if (argc > 2)
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length = hextoul(argv[2], NULL);
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}
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bytes = size * length;
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/* Print the lines */
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for (; bytes > 0; addr += todo) {
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u8 *ptr = buf;
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int i;
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todo = min(bytes, (ulong)DISP_LINE_LEN);
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for (i = 0; i < todo; i += size, ptr += size) {
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if (size == 4)
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*(u32 *)ptr = inl(addr + i);
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else if (size == 2)
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*(u16 *)ptr = inw(addr + i);
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else
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*ptr = inb(addr + i);
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}
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print_buffer(addr, buf, size, todo / size,
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DISP_LINE_LEN / size);
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bytes -= todo;
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}
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last_addr = addr;
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last_length = length;
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last_size = size;
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return 0;
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}
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int do_io_iow(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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ulong addr, val;
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int size;
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if (argc != 3)
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return CMD_RET_USAGE;
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size = cmd_get_data_size(argv[0], 4);
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if (size < 0)
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return 1;
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addr = hextoul(argv[1], NULL);
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val = hextoul(argv[2], NULL);
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if (size == 4)
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outl((u32) val, addr);
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else if (size == 2)
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outw((u16) val, addr);
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else
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outb((u8) val, addr);
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return 0;
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}
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/**************************************************/
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U_BOOT_CMD(iod, 3, 1, do_io_iod,
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"IO space display", "[.b, .w, .l] address");
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U_BOOT_CMD(iow, 3, 0, do_io_iow,
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"IO space modify",
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"[.b, .w, .l] address value");
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