diff options
Diffstat (limited to 'qemu/roms/u-boot/include/nios2-epcs.h')
-rw-r--r-- | qemu/roms/u-boot/include/nios2-epcs.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/include/nios2-epcs.h b/qemu/roms/u-boot/include/nios2-epcs.h new file mode 100644 index 000000000..8c8f2385e --- /dev/null +++ b/qemu/roms/u-boot/include/nios2-epcs.h @@ -0,0 +1,60 @@ +/* + * (C) Copyright 2004, Psyent Corporation <www.psyent.com> + * Scott McNutt <smcnutt@psyent.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/************************************************************************* + * Altera Nios-II EPCS Controller Core interfaces + ************************************************************************/ + +#ifndef __NIOS2_EPCS_H__ +#define __NIOS2_EPCS_H__ + +typedef struct epcs_devinfo_t { + const char *name; /* Device name */ + unsigned char id; /* Device silicon id */ + unsigned char size; /* Total size log2(bytes)*/ + unsigned char num_sects; /* Number of sectors */ + unsigned char sz_sect; /* Sector size log2(bytes) */ + unsigned char sz_page; /* Page size log2(bytes) */ + unsigned char prot_mask; /* Protection mask */ +}epcs_devinfo_t; + +/* Resets the epcs controller -- to prevent (potential) soft-reset + * problems when booting from the epcs controller + */ +extern int epcs_reset (void); + +/* Returns the devinfo struct if EPCS device is found; + * NULL otherwise. + */ +extern epcs_devinfo_t *epcs_dev_find (void); + +/* Returns the number of bytes used by config data. + * Negative on error. + */ +extern int epcs_cfgsz (void); + +/* Erase sectors 'start' to 'end' - return zero on success + */ +extern int epcs_erase (unsigned start, unsigned end); + +/* Read 'cnt' bytes from device offset 'off' into buf at 'addr' + * Zero return on success + */ +extern int epcs_read (ulong addr, ulong off, ulong cnt); + +/* Write 'cnt' bytes to device offset 'off' from buf at 'addr'. + * Zero return on success + */ +extern int epcs_write (ulong addr, ulong off, ulong cnt); + +/* Verify 'cnt' bytes at device offset 'off' comparing with buf + * at 'addr'. On failure, write first invalid offset to *err. + * Zero return on success + */ +extern int epcs_verify (ulong addr, ulong off, ulong cnt, ulong *err); + +#endif /* __NIOS2_EPCS_H__ */ |