diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-03-07 10:57:46 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-03-08 07:19:00 +0100 |
| commit | 9cd20cde4d06cb55339a33368d901c29dc2d2f28 (patch) | |
| tree | c6461b3f0ecb0321bfe6b570551ce97b01eff21c /c/src/lib/libbsp/shared | |
| parent | monitor: Do not zero sema id and name (diff) | |
| download | rtems-9cd20cde4d06cb55339a33368d901c29dc2d2f28.tar.bz2 | |
bsps: Provide <bsp/fdt.h> for every BSP
Add bsp_fdt_map_intr() intended for the libbsd FDT support.
Diffstat (limited to 'c/src/lib/libbsp/shared')
| -rw-r--r-- | c/src/lib/libbsp/shared/include/fdt.h | 38 | ||||
| -rw-r--r-- | c/src/lib/libbsp/shared/src/bsp-fdt.c | 7 |
2 files changed, 42 insertions, 3 deletions
diff --git a/c/src/lib/libbsp/shared/include/fdt.h b/c/src/lib/libbsp/shared/include/fdt.h index a4c7df6dc1..bb71f7d03b 100644 --- a/c/src/lib/libbsp/shared/include/fdt.h +++ b/c/src/lib/libbsp/shared/include/fdt.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015 embedded brains GmbH. All rights reserved. + * Copyright (c) 2015, 2017 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Dornierstr. 4 @@ -15,14 +15,50 @@ #ifndef LIBBSP_SHARED_FDT_H #define LIBBSP_SHARED_FDT_H +#include <bsp.h> + #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ +/* + * BSPs that implement the FDT support functions must define + * BSP_FDT_IS_SUPPORTED. + */ + +/** + * @brief Copies the specified source FDT to a dedicated global data area. + * + * The source FDT is usually provided by a bootloader and may be located in a + * memory area that is used by the program. The low-level initialization + * should copy the FDT for later use. + * + * The copy can be accessed by bsp_fdt_get(). + * + * @param[in] src The source FDT. + */ void bsp_fdt_copy(const void *src); +/** + * @brief Returns the FDT of the BSP. + * + * @return The FDT of the BSP. + */ const void *bsp_fdt_get(void); +/** + * @brief Maps the interrupt number of the FDT to the interrupt vector used by + * the interrupt management. + * + * This function is used by the libbsd to implement the OFW_BUS_MAP_INTR bus + * method. + * + * @param[in] intr The FDT interrupt number. + * + * @return The interrupt vector of the FDT interrupt number. + */ +uint32_t bsp_fdt_map_intr(uint32_t intr); + #ifdef __cplusplus } #endif /* __cplusplus */ diff --git a/c/src/lib/libbsp/shared/src/bsp-fdt.c b/c/src/lib/libbsp/shared/src/bsp-fdt.c index 635cb85571..faf59be8fc 100644 --- a/c/src/lib/libbsp/shared/src/bsp-fdt.c +++ b/c/src/lib/libbsp/shared/src/bsp-fdt.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015 embedded brains GmbH. All rights reserved. + * Copyright (c) 2015, 2017 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Dornierstr. 4 @@ -16,10 +16,13 @@ #include <libfdt.h> -#include <bsp.h> #include <bsp/fdt.h> #include <bsp/linker-symbols.h> +#ifndef BSP_FDT_IS_SUPPORTED +#warning "BSP FDT support indication not defined" +#endif + #ifndef BSP_FDT_BLOB_SIZE_MAX #define BSP_FDT_BLOB_SIZE_MAX 0 #endif |