[PATCH] bsp/beagle: Add nocache section

[Gedare Bloom]

This looks good to me, Christian please push it if happy.

On Fri, Aug 2, 2019 at 2:57 PM Vijay Kumar Banerjee
<vijaykumar9597 at gmail.com> wrote:
>
> ---
>  bsps/arm/beagle/start/bspstart.c      | 5 +++++
>  bsps/arm/beagle/start/linkcmds.beagle | 7 ++++---
>  2 files changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/bsps/arm/beagle/start/bspstart.c b/bsps/arm/beagle/start/bspstart.c
> index 47db5cc529..224f9ecf3b 100644
> --- a/bsps/arm/beagle/start/bspstart.c
> +++ b/bsps/arm/beagle/start/bspstart.c
> @@ -16,6 +16,7 @@
>  #include <bsp/bootcard.h>
>  #include <bsp/irq-generic.h>
>  #include <bsp/fdt.h>
> +#include <bsp/linker-symbols.h>
>
>  #include "bspdebug.h"
>
> @@ -30,6 +31,10 @@ void bsp_start(void)
>    bsp_interrupt_initialize();
>    printk("\nRTEMS Beagleboard: %s\n", type);
>    printk("        ARM Debug: 0x%08x\n", (intptr_t) bbb_arm_debug_registers());
> +  rtems_cache_coherent_add_area(
> +      bsp_section_nocacheheap_begin,
> +      (uintptr_t) bsp_section_nocacheheap_size
> +  );
>  }
>
>  uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells)
> diff --git a/bsps/arm/beagle/start/linkcmds.beagle b/bsps/arm/beagle/start/linkcmds.beagle
> index 5ecd221e6c..bb4047e28e 100644
> --- a/bsps/arm/beagle/start/linkcmds.beagle
> +++ b/bsps/arm/beagle/start/linkcmds.beagle
> @@ -11,7 +11,8 @@ MEMORY {
>     * have either 256M or 512M memory. We just
>     * use 256M for all.
>     */
> -  RAM      : ORIGIN = 0x80000000, LENGTH = 256M - 4M
> +  RAM      : ORIGIN = 0x80000000, LENGTH = 256M - 16M - 4M
> +  NOCACHE  : ORIGIN = 0x80000000 + 256M - 16M - 4M, LENGTH = 16M
>    RAM_MMU  : ORIGIN = 0x80000000 + 256M - 4M, LENGTH = 16k
>  }
>
> @@ -30,8 +31,8 @@ REGION_ALIAS ("REGION_FAST_DATA_LOAD", RAM);
>  REGION_ALIAS ("REGION_BSS",            RAM);
>  REGION_ALIAS ("REGION_WORK",           RAM);
>  REGION_ALIAS ("REGION_STACK",          RAM);
> -REGION_ALIAS ("REGION_NOCACHE",        RAM);
> -REGION_ALIAS ("REGION_NOCACHE_LOAD",   RAM);
> +REGION_ALIAS ("REGION_NOCACHE",        NOCACHE);
> +REGION_ALIAS ("REGION_NOCACHE_LOAD",   NOCACHE);
>
>  bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 1024;
>
> --
> 2.20.1
>
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