source: rtems/bsps/arm/xilinx-zynq/include/bsp/cadence-i2c-regs.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: 2.9 KB
Line 
1/*
2 * Copyright (c) 2014 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_XILINX_ZYNQ_CADENCE_I2C_REGS_H
16#define LIBBSP_ARM_XILINX_ZYNQ_CADENCE_I2C_REGS_H
17
18#include <bsp/utility.h>
19
20typedef struct {
21        uint32_t control;
22#define CADENCE_I2C_CONTROL_DIV_A(val) BSP_FLD32(val, 14, 15)
23#define CADENCE_I2C_CONTROL_DIV_A_GET(reg) BSP_FLD32GET(reg, 14, 15)
24#define CADENCE_I2C_CONTROL_DIV_A_SET(reg, val) BSP_FLD32SET(reg, val, 14, 15)
25#define CADENCE_I2C_CONTROL_DIV_B(val) BSP_FLD32(val, 8, 13)
26#define CADENCE_I2C_CONTROL_DIV_B_GET(reg) BSP_FLD32GET(reg, 8, 13)
27#define CADENCE_I2C_CONTROL_DIV_B_SET(reg, val) BSP_FLD32SET(reg, val, 8, 13)
28#define CADENCE_I2C_CONTROL_CLR_FIFO BSP_BIT32(6)
29#define CADENCE_I2C_CONTROL_SLVMON BSP_BIT32(5)
30#define CADENCE_I2C_CONTROL_HOLD BSP_BIT32(4)
31#define CADENCE_I2C_CONTROL_ACKEN BSP_BIT32(3)
32#define CADENCE_I2C_CONTROL_NEA BSP_BIT32(2)
33#define CADENCE_I2C_CONTROL_MS BSP_BIT32(1)
34#define CADENCE_I2C_CONTROL_RW BSP_BIT32(0)
35        uint32_t status;
36#define CADENCE_I2C_STATUS_BA BSP_BIT32(8)
37#define CADENCE_I2C_STATUS_RXOVF BSP_BIT32(7)
38#define CADENCE_I2C_STATUS_TXDV BSP_BIT32(6)
39#define CADENCE_I2C_STATUS_RXDV BSP_BIT32(5)
40#define CADENCE_I2C_STATUS_RXRW BSP_BIT32(3)
41        uint32_t address;
42#define CADENCE_I2C_ADDRESS(val) BSP_FLD32(val, 0, 9)
43#define CADENCE_I2C_ADDRESS_GET(reg) BSP_FLD32GET(reg, 0, 9)
44#define CADENCE_I2C_ADDRESS_SET(reg, val) BSP_FLD32SET(reg, val, 0, 9)
45        uint32_t data;
46        uint32_t irqstatus;
47#define CADENCE_I2C_IXR_ARB_LOST BSP_BIT32(9)
48#define CADENCE_I2C_IXR_RX_UNF BSP_BIT32(7)
49#define CADENCE_I2C_IXR_TX_OVR BSP_BIT32(6)
50#define CADENCE_I2C_IXR_RX_OVR BSP_BIT32(5)
51#define CADENCE_I2C_IXR_SLV_RDY BSP_BIT32(4)
52#define CADENCE_I2C_IXR_TO BSP_BIT32(3)
53#define CADENCE_I2C_IXR_NACK BSP_BIT32(2)
54#define CADENCE_I2C_IXR_DATA BSP_BIT32(1)
55#define CADENCE_I2C_IXR_COMP BSP_BIT32(0)
56        uint32_t transfer_size;
57#define CADENCE_I2C_TRANSFER_SIZE(val) BSP_FLD32(val, 0, 7)
58#define CADENCE_I2C_TRANSFER_SIZE_GET(reg) BSP_FLD32GET(reg, 0, 7)
59#define CADENCE_I2C_TRANSFER_SIZE_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7)
60        uint32_t slave_mon_pause;
61#define CADENCE_I2C_SLAVE_MON_PAUSE(val) BSP_FLD32(val, 0, 3)
62#define CADENCE_I2C_SLAVE_MON_PAUSE_GET(reg) BSP_FLD32GET(reg, 0, 3)
63#define CADENCE_I2C_SLAVE_MON_PAUSE_SET(reg, val) BSP_FLD32SET(reg, val, 0, 3)
64        uint32_t timeout;
65#define CADENCE_I2C_TIMEOUT(val) BSP_FLD32(val, 0, 7)
66#define CADENCE_I2C_TIMEOUT_GET(reg) BSP_FLD32GET(reg, 0, 7)
67#define CADENCE_I2C_TIMEOUT_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7)
68        uint32_t irqmask;
69        uint32_t irqenable;
70        uint32_t irqdisable;
71} cadence_i2c;
72
73#endif /* LIBBSP_ARM_XILINX_ZYNQ_CADENCE_I2C_REGS_H */
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