[PATCH] bsp/beagle: Add nocache section

[Christian Mauderer]

Hello Gedare,

I'll create a ticket and push the patch. I planned that for the weekend
anyway (if no one objected till then).

Best regards

Christian

On 07/08/2019 17:58, Gedare Bloom wrote:
> Actually, this could probably use a ticket associated with it...
> 
> On Wed, Aug 7, 2019 at 9:58 AM Gedare Bloom <gedare at rtems.org> wrote:
>>
>> 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
>>>
>>> _______________________________________________
>>> devel mailing list
>>> devel at rtems.org
>>> http://lists.rtems.org/mailman/listinfo/devel
>