From 2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 Mon Sep 17 00:00:00 2001 From: Chris Johns Date: Sat, 23 Dec 2017 18:18:56 +1100 Subject: 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. --- bsps/powerpc/include/mpc55xx/watchdog.h | 68 +++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 bsps/powerpc/include/mpc55xx/watchdog.h (limited to 'bsps/powerpc/include/mpc55xx/watchdog.h') diff --git a/bsps/powerpc/include/mpc55xx/watchdog.h b/bsps/powerpc/include/mpc55xx/watchdog.h new file mode 100644 index 0000000000..d5a8af794e --- /dev/null +++ b/bsps/powerpc/include/mpc55xx/watchdog.h @@ -0,0 +1,68 @@ +/** + * @file + * + * @ingroup mpc55xx + * + * @brief Header file for the watchdog timer. + */ + +/* + * Copyright (c) 2008 + * Embedded Brains GmbH + * Obere Lagerstr. 30 + * D-82178 Puchheim + * Germany + * rtems@embedded-brains.de + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef LIBCPU_POWERPC_MPC55XX_WATCHDOG_H +#define LIBCPU_POWERPC_MPC55XX_WATCHDOG_H + +#include + +#include + +#include + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +static inline void mpc55xx_watchdog_clear() +{ + PPC_SET_SPECIAL_PURPOSE_REGISTER( BOOKE_TSR, BOOKE_TSR_WIS); +} + +static inline void mpc55xx_watchdog_enable_interrupt( bool enable) +{ + if (enable) { + PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_WIE); + } else { + PPC_CLEAR_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_WIE); + } +} + +static inline rtems_status_code mpc55xx_watchdog_set_time_base_bit( uint32_t bit) +{ + if (bit > 63) { + return RTEMS_INVALID_NUMBER; + } + + PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS_MASKED( + BOOKE_TCR, + BOOKE_TCR_WP( bit) | BOOKE_TCR_WPEXT( bit >> 2), + BOOKE_TCR_WP_MASK | BOOKE_TCR_WPEXT_MASK + ); + + return RTEMS_SUCCESSFUL; +} + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LIBCPU_POWERPC_MPC55XX_WATCHDOG_H */ -- cgit v1.2.3