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https://github.com/smaeul/u-boot.git
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*
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* (C) Copyright 2002
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* Stäubli Faverges - <www.staubli.com>
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* Pierre AUBERT p.aubert@staubli.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Dos floppy support
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*/
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#include <common.h>
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#include <config.h>
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#include <command.h>
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#include <fdc.h>
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/*-----------------------------------------------------------------------------
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* do_fdosboot --
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*-----------------------------------------------------------------------------
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*/
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int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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char *name;
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char *ep;
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int size;
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int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
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/* pre-set load_addr */
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if ((ep = getenv("loadaddr")) != NULL) {
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load_addr = simple_strtoul(ep, NULL, 16);
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}
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/* pre-set Boot file name */
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if ((name = getenv("bootfile")) == NULL) {
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name = "uImage";
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}
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switch (argc) {
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case 1:
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break;
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case 2:
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/* only one arg - accept two forms:
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* just load address, or just boot file name.
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* The latter form must be written "filename" here.
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*/
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if (argv[1][0] == '"') { /* just boot filename */
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name = argv [1];
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} else { /* load address */
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load_addr = simple_strtoul(argv[1], NULL, 16);
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}
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break;
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case 3:
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load_addr = simple_strtoul(argv[1], NULL, 16);
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name = argv [2];
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break;
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default:
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return CMD_RET_USAGE;
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}
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/* Init physical layer */
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if (!fdc_fdos_init (drive)) {
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return (-1);
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}
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/* Open file */
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if (dos_open (name) < 0) {
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printf ("Unable to open %s\n", name);
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return 1;
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}
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if ((size = dos_read (load_addr)) < 0) {
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printf ("boot error\n");
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return 1;
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}
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flush_cache (load_addr, size);
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setenv_hex("filesize", size);
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printf("Floppy DOS load complete: %d bytes loaded to 0x%lx\n",
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size, load_addr);
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return bootm_maybe_autostart(cmdtp, argv[0]);
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}
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/*-----------------------------------------------------------------------------
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* do_fdosls --
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*-----------------------------------------------------------------------------
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*/
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int do_fdosls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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char *path = "";
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int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
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switch (argc) {
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case 1:
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break;
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case 2:
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path = argv [1];
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break;
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}
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/* Init physical layer */
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if (!fdc_fdos_init (drive)) {
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return (-1);
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}
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/* Open directory */
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if (dos_open (path) < 0) {
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printf ("Unable to open %s\n", path);
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return 1;
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}
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return (dos_dir ());
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}
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U_BOOT_CMD(
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fdosboot, 3, 0, do_fdosboot,
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"boot from a dos floppy file",
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"[loadAddr] [filename]"
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);
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U_BOOT_CMD(
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fdosls, 2, 0, do_fdosls,
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"list files in a directory",
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"[directory]"
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);
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