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https://github.com/antonblanchard/microwatt.git
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982cf166dd
This comes in two parts: - A generator script which uses LiteX to generate litedram cores along with their init files for various boards (currently Arty and Nexys-video). This comes with configs for arty and nexys_video. - A fusesoc "generator" which uses pre-generated litedram cores The generation process is manual on purpose. This include pre-generated cores for the two above boards. This is done so that one doesn't have to install LiteX to build microwatt. In addition, the generator script or wrapper vhdl tend to break when LiteX changes significantly which happens. This is still rather standalone and hasn't been plumbed into the SoC or the FPGA toplevel files yet. At this point LiteDRAM self-initializes using a built-in VexRiscv "Minimum" core obtained from LiteX and included in this commit. There is some plumbing to generate and cores that are initialized by Microwatt directly but this isn't working yet and so isn't enabled yet. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/******************************************************************************
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* Copyright (c) 2004, 2008 IBM Corporation
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* All rights reserved.
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* This program and the accompanying materials
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* are made available under the terms of the BSD License
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* which accompanies this distribution, and is available at
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* http://www.opensource.org/licenses/bsd-license.php
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*
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* Contributors:
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* IBM Corporation - initial implementation
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*****************************************************************************/
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#ifndef _ERRNO_H
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#define _ERRNO_H
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extern int errno;
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/*
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* Error number definitions
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*/
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#define EPERM 1 /* not permitted */
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#define ENOENT 2 /* file or directory not found */
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#define EIO 5 /* input/output error */
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#define EBADF 9 /* Bad file number */
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#define ENOMEM 12 /* not enough space */
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#define EACCES 13 /* permission denied */
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#define EFAULT 14 /* bad address */
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#define EBUSY 16 /* resource busy */
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#define EEXIST 17 /* file already exists */
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#define ENODEV 19 /* device not found */
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#define EINVAL 22 /* invalid argument */
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#define EDOM 33 /* math argument out of domain of func */
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#define ERANGE 34 /* math result not representable */
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#define ENOSYS 38 /* Function not implemented */
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#endif
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