source: rtems/bsps/arm/imx/include/bsp.h @ d7d66d7

5
Last change on this file since d7d66d7 was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

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: 1.9 KB
Line 
1/*
2 * Copyright (c) 2017 embedded brains GmbH.  All rights reserved.
3 *
4 *  embedded brains GmbH
5 *  Dornierstr. 4
6 *  82178 Puchheim
7 *  Germany
8 *  <info@embedded-brains.de>
9 *
10 * The license and distribution terms for this file may be
11 * found in the file LICENSE in this distribution or at
12 * http://www.rtems.org/license/LICENSE.
13 */
14
15#ifndef LIBBSP_ARM_IMX_BSP_H
16#define LIBBSP_ARM_IMX_BSP_H
17
18#include <bspopts.h>
19
20#define BSP_FEATURE_IRQ_EXTENSION
21
22#define BSP_FDT_IS_SUPPORTED
23
24#ifndef ASM
25
26#include <rtems.h>
27
28#include <bsp/default-initial-extension.h>
29
30#ifdef __cplusplus
31extern "C" {
32#endif /* __cplusplus */
33
34#define BSP_ARM_GIC_DIST_BASE 0x31001000
35
36#define BSP_ARM_GIC_CPUIF_BASE 0x31002000
37
38#define BSP_ARM_A9MPCORE_GT_BASE 0
39
40#define BSP_ARM_A9MPCORE_SCU_BASE 0
41
42void arm_generic_timer_get_config(uint32_t *frequency, uint32_t *irq);
43
44void *imx_get_reg_of_node(const void *fdt, int node);
45
46int imx_iomux_configure_pins(const void *fdt, uint32_t phandle);
47
48rtems_vector_number imx_get_irq_of_node(
49  const void *fdt,
50  int node,
51  size_t index
52);
53
54void imx_uart_console_drain(void);
55
56/**
57 * @brief Registers an IMX I2C bus driver.
58 *
59 * @param[in] bus_path The I2C bus driver device path, e.g. "/dev/i2c-0".
60 * @param[in] alias_or_path The FDT alias or path, e.g. "i2c0".
61 *
62 * @retval 0 Successful operation.
63 * @retval -1 An error occurred.  The errno is set to indicate the error.
64 */
65int i2c_bus_register_imx(const char *bus_path, const char *alias_or_path);
66
67/**
68 * @brief Registers an IMX ECSPI bus driver.
69 *
70 * @param[in] bus_path The ECSPI bus driver device path, e.g. "/dev/spi-0".
71 * @param[in] alias_or_path The FDT alias or path, e.g. "spi0".
72 *
73 * @retval 0 Successful operation.
74 * @retval -1 An error occurred.  The errno is set to indicate the error.
75 */
76int spi_bus_register_imx(const char *bus_path, const char *alias_or_path);
77
78#ifdef __cplusplus
79}
80#endif /* __cplusplus */
81
82#endif /* ASM */
83
84#endif /* LIBBSP_ARM_IMX_BSP_H */
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