[PATCH] bsp/raspberrypi: Enable FDT support.

[Christian Mauderer]

Pushed. Thanks.

On 03/01/2020 04:26, G S Niteesh wrote:
> This commit adds FDT support to the BSP.
> ---
>  bsps/arm/raspberrypi/include/bsp.h            |  4 ++++
>  c/src/lib/libbsp/arm/raspberrypi/Makefile.am  |  1 +
>  c/src/lib/libbsp/arm/raspberrypi/configure.ac | 13 +++++++++++++
>  3 files changed, 18 insertions(+)
> 
> diff --git a/bsps/arm/raspberrypi/include/bsp.h b/bsps/arm/raspberrypi/include/bsp.h
> index 1075cb1771..b81d19cd76 100644
> --- a/bsps/arm/raspberrypi/include/bsp.h
> +++ b/bsps/arm/raspberrypi/include/bsp.h
> @@ -41,6 +41,10 @@ extern "C" {
>  
>  #define BSP_FEATURE_IRQ_EXTENSION
>  
> +#if BSP_START_COPY_FDT_FROM_U_BOOT
> +#define BSP_FDT_IS_SUPPORTED
> +#endif
> +
>  #define RPI_L2_CACHE_ENABLE 1
>  
>  #define BSP_GPIO_PIN_COUNT 32
> diff --git a/c/src/lib/libbsp/arm/raspberrypi/Makefile.am b/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> index 11a22f89e3..77aa360977 100644
> --- a/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> +++ b/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> @@ -45,6 +45,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
>  librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/stackalloc.c
>  librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/start/bsp-start-memcpy.S
>  librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/cp15/arm-cp15-set-ttb-entries.c
> +librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bsp-fdt.c
>  
>  # Startup
>  librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/raspberrypi/start/bspstart.c
> diff --git a/c/src/lib/libbsp/arm/raspberrypi/configure.ac b/c/src/lib/libbsp/arm/raspberrypi/configure.ac
> index 452aa4d029..b1aa0bf417 100644
> --- a/c/src/lib/libbsp/arm/raspberrypi/configure.ac
> +++ b/c/src/lib/libbsp/arm/raspberrypi/configure.ac
> @@ -15,6 +15,19 @@ RTEMS_CANONICAL_TARGET_CPU
>  AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
>  RTEMS_BSP_CONFIGURE
>  
> +RTEMS_BSPOPTS_SET([BSP_START_COPY_FDT_FROM_U_BOOT],[*],[1])
> +RTEMS_BSPOPTS_HELP([BSP_START_COPY_FDT_FROM_U_BOOT],[copy the U-Boot provided FDT to an internal storage])
> +
> +RTEMS_BSPOPTS_SET([BSP_FDT_BLOB_SIZE_MAX],[*],[262144])
> +RTEMS_BSPOPTS_HELP([BSP_FDT_BLOB_SIZE_MAX],[maximum size of the FDT blob in bytes])
> +
> +RTEMS_BSPOPTS_SET([BSP_FDT_BLOB_READ_ONLY],[*],[1])
> +RTEMS_BSPOPTS_HELP([BSP_FDT_BLOB_READ_ONLY],[place the FDT blob into the read-only data area])
> +
> +RTEMS_BSPOPTS_SET([BSP_FDT_BLOB_COPY_TO_READ_ONLY_LOAD_AREA],[*],[1])
> +RTEMS_BSPOPTS_HELP([BSP_FDT_BLOB_COPY_TO_READ_ONLY_LOAD_AREA],[copy the FDT blob into the read-only load area via bsp_fdt_copy()])
> +
> +
>  RTEMS_BSPOPTS_SET([BSP_START_RESET_VECTOR],[*],[])
>  RTEMS_BSPOPTS_HELP([BSP_START_RESET_VECTOR],[reset vector address for BSP start])
>  
>