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a89c33db96
Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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static int mmc_nspi (const char *);
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int do_dataflash_mmc_mux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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switch (argc) {
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case 2: /* on / off */
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switch (mmc_nspi (argv[1])) {
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case 0: AT91F_SelectSPI ();
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break;
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case 1: AT91F_SelectMMC ();
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break;
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}
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case 1: /* get status */
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printf ("Mux is configured to be %s\n",
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AT91F_GetMuxStatus () ? "MMC" : "SPI");
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return 0;
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default:
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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return 0;
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}
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static int mmc_nspi (const char *s)
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{
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if (strcmp (s, "mmc") == 0) {
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return 1;
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} else if (strcmp (s, "spi") == 0) {
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return 0;
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}
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return -1;
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}
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U_BOOT_CMD(
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dataflash_mmc_mux, 2, 1, do_dataflash_mmc_mux,
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"dataflash_mmc_mux\t- enable or disable MMC or SPI\n",
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"[mmc, spi]\n"
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" - enable or disable MMC or SPI"
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);
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