3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * IBM 4XX DCR Functions
32 #if defined(CONFIG_4xx) && defined(CFG_CMD_SETGETDCR)
34 /* ======================================================================
35 * Interpreter command to retrieve an IBM PPC 4xx Device Control Register
36 * ======================================================================
38 int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
40 unsigned short dcrn; /* Device Control Register Num */
41 unsigned long value; /* DCR's value */
43 unsigned long get_dcr(unsigned short);
45 /* Validate arguments */
47 printf("Usage:\n%s\n", cmdtp->usage);
52 dcrn = (unsigned short)simple_strtoul(argv[ 1 ], NULL, 16);
53 value = get_dcr(dcrn);
55 printf("%04x: %08lx\n", dcrn, value);
61 /* ======================================================================
62 * Interpreter command to set an IBM PPC 4xx Device Control Register
63 * ======================================================================
65 int do_setdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
67 unsigned long get_dcr(unsigned short );
68 unsigned long set_dcr(unsigned short , unsigned long );
69 unsigned short dcrn; /* Device Control Register Num */
73 extern char console_buffer[];
75 /* Validate arguments */
77 printf("Usage:\n%s\n", cmdtp->usage);
82 dcrn = (unsigned short)simple_strtoul(argv[1], NULL, 16);
84 value = get_dcr(dcrn);
85 printf("%04x: %08lx", dcrn, value);
86 nbytes = readline(" ? ");
89 * <CR> pressed as only input, don't modify current
90 * location and exit command.
97 i = simple_strtoul(console_buffer, &endp, 16);
98 nbytes = endp - console_buffer;
107 /***************************************************/
109 cmd_tbl_t U_BOOT_CMD(GETDCR) = MK_CMD_ENTRY(
110 "getdcr", 2, 1, do_getdcr,
111 "getdcr - Get an IBM PPC 4xx DCR's value\n",
112 "dcrn - return a DCR's value.\n"
114 cmd_tbl_t U_BOOT_CMD(SETDCR) = MK_CMD_ENTRY(
115 "setdcr", 2, 1, do_setdcr,
116 "setdcr - Set an IBM PPC 4xx DCR's value\n",
117 "dcrn - set a DCR's value.\n"
120 #endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */