diff options
| author | Christian Mauderer <Christian.Mauderer@embedded-brains.de> | 2017-10-11 15:38:13 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-10-12 08:59:22 +0200 |
| commit | 2ae0acbb71cb455e4afaba45b8722f691f329f22 (patch) | |
| tree | 05296068309c5cffb4f9d4a51bb258a1be859cbf | |
| parent | Use right time format in _times() (diff) | |
| download | rtems-2ae0acbb71cb455e4afaba45b8722f691f329f22.tar.bz2 | |
bsp/atsam: Add bsp_restart.
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/Makefile.am | 1 | ||||
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/include/bsp.h | 2 | ||||
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/startup/restart.c | 39 |
3 files changed, 42 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/atsam/Makefile.am b/c/src/lib/libbsp/arm/atsam/Makefile.am index 7f0ed870b6..5eafc42872 100644 --- a/c/src/lib/libbsp/arm/atsam/Makefile.am +++ b/c/src/lib/libbsp/arm/atsam/Makefile.am @@ -400,6 +400,7 @@ libbsp_a_SOURCES += startup/pin-config.c libbsp_a_SOURCES += startup/power.c libbsp_a_SOURCES += startup/power-rtc.c libbsp_a_SOURCES += startup/power-clock.c +libbsp_a_SOURCES += startup/restart.c libbsp_a_SOURCES += startup/sdram-config.c # IRQ diff --git a/c/src/lib/libbsp/arm/atsam/include/bsp.h b/c/src/lib/libbsp/arm/atsam/include/bsp.h index 89968e9c07..cd0103ad70 100644 --- a/c/src/lib/libbsp/arm/atsam/include/bsp.h +++ b/c/src/lib/libbsp/arm/atsam/include/bsp.h @@ -91,6 +91,8 @@ void atsam_rtc_get_time(rtems_time_of_day *tod); +void bsp_restart( const void *const addr ); + /** @} */ #ifdef __cplusplus diff --git a/c/src/lib/libbsp/arm/atsam/startup/restart.c b/c/src/lib/libbsp/arm/atsam/startup/restart.c new file mode 100644 index 0000000000..9934fbd298 --- /dev/null +++ b/c/src/lib/libbsp/arm/atsam/startup/restart.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2017 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Dornierstr. 4 + * 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. + */ + +#include <rtems.h> +#include <rtems/score/armv7m.h> +#include <bsp.h> + +static void ARMV7M_Systick_cleanup(void) +{ + volatile ARMV7M_Systick *systick = _ARMV7M_Systick; + systick->csr = 0; +} + +void bsp_restart( const void *const addr ) +{ + rtems_interrupt_level level; + void(*start)(void) = (void(*)(void))(addr); + + rtems_interrupt_disable(level); + (void)level; + rtems_cache_disable_instruction(); + rtems_cache_disable_data(); + rtems_cache_invalidate_entire_instruction(); + rtems_cache_invalidate_entire_data(); + ARMV7M_Systick_cleanup(); + + start(); +} |