diff options
Diffstat (limited to 'c/src/lib/libbsp/shared/include/fdt.h')
| -rw-r--r-- | c/src/lib/libbsp/shared/include/fdt.h | 38 |
1 files changed, 37 insertions, 1 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 */ |