source: rtems/bsps/powerpc/ss555/include/bsp.h @ 2afb22b

5
Last change on this file since 2afb22b was 2afb22b, checked in by Chris Johns <chrisj@…>, on Dec 23, 2017 at 7:18:56 AM

Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

  • The make preinstall step itself needs time and disk space.
  • Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error.
  • There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult.
  • The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit.
  • An introduction of a new build system is difficult.
  • Include paths specified by the -B option are system headers. This may suppress warnings.
  • The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

  • cpukit/include
  • cpukit/score/cpu/@RTEMS_CPU@/include
  • cpukit/libnetworking

The new BSP include directories are:

  • bsps/include
  • bsps/@RTEMS_CPU@/include
  • bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 *  This file includes definitions for the Intec SS555.
3 */
4
5/*
6 *  SS555 port sponsored by Defence Research and Development Canada - Suffield
7 *  Copyright (C) 2004, Real-Time Systems Inc. (querbach@realtime.bc.ca)
8 *
9 *  Derived from c/src/lib/libbsp/powerpc/mbx8xx/include/bsp.h:
10 *
11 *  COPYRIGHT (c) 1989-1998.
12 *  On-Line Applications Research Corporation (OAR).
13 *
14 *  The license and distribution terms for this file may be
15 *  found in the file LICENSE in this distribution or at
16 *  http://www.rtems.org/license/LICENSE.
17 */
18
19#ifndef LIBBSP_POWERPC_SS555_BSP_H
20#define LIBBSP_POWERPC_SS555_BSP_H
21
22#ifndef ASM
23
24#include <bspopts.h>
25#include <bsp/default-initial-extension.h>
26
27#include <rtems.h>
28#include <mpc5xx.h>
29#include <mpc5xx/console.h>
30#include <libcpu/vectors.h>
31#include <bsp/irq.h>
32
33#ifdef __cplusplus
34extern "C" {
35#endif
36
37/*
38 * Clock definitions
39 */
40
41#define BSP_CRYSTAL_HZ   4000000        /* crystal frequency, Hz */
42#define BSP_CLOCK_HZ    40000000        /* CPU clock frequency, Hz
43
44/*
45 * I/O definitions
46 *
47 * The SS555 board includes a CPLD to control on-board features and
48 * off-board devices.
49 */
50typedef struct cpld_ {
51  uint8_t       cs3a[32];               /* Chip select 3A */
52  uint8_t       pad0[0x200000 - 0x000020];
53
54  uint8_t       cs3b[32];               /* Chip select 3B */
55  uint8_t       pad2[0x400000 - 0x200020];
56
57  uint8_t       cs3c[32];               /* Chip select 3C */
58  uint8_t       pad4[0x600000 - 0x400020];
59
60  uint8_t       cs3d[32];               /* Chip select 3D */
61  uint8_t       pad6[0x800000 - 0x600020];
62
63  uint8_t       serial_ints;    /* Enable/disable serial interrupts */
64  uint8_t       serial_resets;  /* Enable/disable serial resets */
65  uint8_t       serial_ack;     /* Acknowledge serial transfers */
66  uint8_t       pad8[0xA00000 - 0x800003];
67
68  uint8_t       iflash_writess; /* Enable/disable internal-flash writes */
69  uint8_t       nflash_writess; /* Enable/disable NAND-flash writes */
70  uint8_t       padA[0xC00000 - 0xA00002];
71} cpld_t;
72
73extern volatile cpld_t cpld;              /* defined in linkcmds */
74
75/* clock/p_clock.c */
76extern int BSP_disconnect_clock_handler (void);
77
78extern int BSP_connect_clock_handler (rtems_irq_hdl hdl);
79
80/*
81 *  Prototypes for methods called from .S to support dependency tracking.
82 */
83void _InitSS555(void);
84
85#ifdef __cplusplus
86}
87#endif
88
89#endif /* !ASM */
90
91#endif
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