| wdenk | 0c1c117 | 2005-03-30 23:28:18 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
| 3 | * Scott McNutt <smcnutt@psyent.com> |
| 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 | * Altera Nios-II EPCS Controller Core interfaces |
| 26 | ************************************************************************/ |
| 27 | |
| 28 | #ifndef __NIOS2_EPCS_H__ |
| 29 | #define __NIOS2_EPCS_H__ |
| 30 | |
| 31 | typedef struct epcs_devinfo_t { |
| 32 | const char *name; /* Device name */ |
| 33 | unsigned char id; /* Device silicon id */ |
| 34 | unsigned char size; /* Total size log2(bytes)*/ |
| 35 | unsigned char num_sects; /* Number of sectors */ |
| 36 | unsigned char sz_sect; /* Sector size log2(bytes) */ |
| 37 | unsigned char sz_page; /* Page size log2(bytes) */ |
| 38 | unsigned char prot_mask; /* Protection mask */ |
| 39 | }epcs_devinfo_t; |
| 40 | |
| Scott McNutt | 1f6ce8f | 2006-06-08 12:08:12 -0400 | [diff] [blame] | 41 | /* Resets the epcs controller -- to prevent (potential) soft-reset |
| 42 | * problems when booting from the epcs controller |
| 43 | */ |
| 44 | extern int epcs_reset (void); |
| 45 | |
| wdenk | 0c1c117 | 2005-03-30 23:28:18 +0000 | [diff] [blame] | 46 | /* Returns the devinfo struct if EPCS device is found; |
| 47 | * NULL otherwise. |
| 48 | */ |
| 49 | extern epcs_devinfo_t *epcs_dev_find (void); |
| 50 | |
| 51 | /* Returns the number of bytes used by config data. |
| 52 | * Negative on error. |
| 53 | */ |
| 54 | extern int epcs_cfgsz (void); |
| 55 | |
| 56 | /* Erase sectors 'start' to 'end' - return zero on success |
| 57 | */ |
| 58 | extern int epcs_erase (unsigned start, unsigned end); |
| 59 | |
| 60 | /* Read 'cnt' bytes from device offset 'off' into buf at 'addr' |
| 61 | * Zero return on success |
| 62 | */ |
| 63 | extern int epcs_read (ulong addr, ulong off, ulong cnt); |
| 64 | |
| 65 | /* Write 'cnt' bytes to device offset 'off' from buf at 'addr'. |
| 66 | * Zero return on success |
| 67 | */ |
| 68 | extern int epcs_write (ulong addr, ulong off, ulong cnt); |
| 69 | |
| 70 | /* Verify 'cnt' bytes at device offset 'off' comparing with buf |
| 71 | * at 'addr'. On failure, write first invalid offset to *err. |
| 72 | * Zero return on success |
| 73 | */ |
| 74 | extern int epcs_verify (ulong addr, ulong off, ulong cnt, ulong *err); |
| 75 | |
| 76 | #endif /* __NIOS2_EPCS_H__ */ |