projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 3863585b WD |
1 | /* |
| 2 | * (C) Copyright 2001 | |
| 3 | * Erik Theisen, Wave 7 Optics, [email protected]. | |
| 4 | * | |
| 5 | * See file CREDITS for list of people who contributed to this | |
| 6 | * project. | |
| 7 | * | |
| 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. | |
| 12 | * | |
| 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. | |
| 17 | * | |
| 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, | |
| 21 | * MA 02111-1307 USA | |
| 22 | */ | |
| 23 | ||
| 24 | /* | |
| 25 | * IBM 4XX DCR Functions | |
| 26 | */ | |
| 27 | ||
| 28 | #include <common.h> | |
| 29 | #include <config.h> | |
| 30 | #include <command.h> | |
| 31 | #include <cmd_dcr.h> | |
| 32 | ||
| 33 | #if defined(CONFIG_4xx) && defined(CFG_CMD_SETGETDCR) | |
| 34 | ||
| 35 | /* ====================================================================== | |
| 36 | * Interpreter command to retrieve an IBM PPC 4xx Device Control Register | |
| 37 | * ====================================================================== | |
| 38 | */ | |
| 39 | int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] ) | |
| 40 | { | |
| 41 | unsigned short dcrn; /* Device Control Register Num */ | |
| 42 | unsigned long value; /* DCR's value */ | |
| 43 | ||
| 44 | /* Validate arguments */ | |
| 45 | if (argc < 2) { | |
| 46 | printf("Usage:\n%s\n", cmdtp->usage); | |
| 47 | return 1; | |
| 48 | } | |
| 49 | ||
| 50 | /* Get a DCR */ | |
| 51 | dcrn = (unsigned short)simple_strtoul(argv[ 1 ], NULL, 16); | |
| 52 | value = get_dcr(dcrn); | |
| 53 | ||
| 54 | printf("%04x: %08lx\n", dcrn, value); | |
| 55 | ||
| 56 | return 0; | |
| 57 | } /* do_getdcr */ | |
| 58 | ||
| 59 | ||
| 60 | /* ====================================================================== | |
| 61 | * Interpreter command to set an IBM PPC 4xx Device Control Register | |
| 62 | * ====================================================================== | |
| 63 | */ | |
| 64 | int do_setdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
| 65 | { | |
| 66 | unsigned short dcrn; /* Device Control Register Num */ | |
| 67 | unsigned long value; /* DCR's value */ | |
| 68 | int nbytes; | |
| 69 | extern char console_buffer[]; | |
| 70 | ||
| 71 | /* Validate arguments */ | |
| 72 | if (argc < 2) { | |
| 73 | printf("Usage:\n%s\n", cmdtp->usage); | |
| 74 | return 1; | |
| 75 | } | |
| 76 | ||
| 77 | /* Set a DCR */ | |
| 78 | dcrn = (unsigned short)simple_strtoul(argv[1], NULL, 16); | |
| 79 | do { | |
| 80 | value = get_dcr(dcrn); | |
| 81 | printf("%04x: %08lx", dcrn, value); | |
| 82 | nbytes = readline(" ? "); | |
| 83 | if (nbytes == 0) { | |
| 84 | /* | |
| 85 | * <CR> pressed as only input, don't modify current | |
| 86 | * location and exit command. | |
| 87 | */ | |
| 88 | nbytes = 1; | |
| 89 | return 0; | |
| 90 | } else { | |
| 91 | unsigned long i; | |
| 92 | char *endp; | |
| 93 | i = simple_strtoul(console_buffer, &endp, 16); | |
| 94 | nbytes = endp - console_buffer; | |
| 95 | if (nbytes) | |
| 96 | set_dcr(dcrn, i); | |
| 97 | } | |
| 98 | } while (nbytes); | |
| 99 | ||
| 100 | return 0; | |
| 101 | } /* do_setdcr */ | |
| 102 | ||
| 103 | #endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */ |