[PATCH 01/14] trace: Use notrace for short

Stefan Herbrechtsmeier stefan.herbrechtsmeier-oss at weidmueller.com
Wed Jan 25 08:52:52 CET 2023


Hi Simon,

Am 24.01.2023 um 23:44 schrieb Simon Glass:
> Hi Stefan,
>
> On Tue, 24 Jan 2023 at 05:14, Stefan Herbrechtsmeier
> <stefan.herbrechtsmeier-oss at weidmueller.com> wrote:
>> Hi Simon,
>>
>> Am 24.01.2023 um 11:55 schrieb Simon Glass:
>>> Hi Stefan,
>>>
>>> On Tue, 24 Jan 2023 at 01:12, Stefan Herbrechtsmeier
>>> <stefan.herbrechtsmeier-oss at weidmueller.com> wrote:
>>>> Hi Simon,
>>>>
>>>> Am 22.12.2022 um 00:08 schrieb Simon Glass:
>>>>> The attribute syntax is quite verbose. Use the macro provided for this
>>>>> purpose.
>>>>>
>>>>> Signed-off-by: Simon Glass <sjg at chromium.org>
>>>>> ---
>>>>>
>>>>>     arch/arm/cpu/armv7/s5p-common/timer.c   |  2 +-
>>>>>     arch/arm/mach-exynos/include/mach/cpu.h |  6 +++---
>>>>>     arch/x86/include/asm/global_data.h      |  2 +-
>>>>>     arch/x86/include/asm/msr.h              |  2 +-
>>>>>     arch/x86/include/asm/u-boot-x86.h       |  2 +-
>>>>>     common/spl/spl_fit.c                    |  1 +
>>>>>     doc/develop/trace.rst                   |  2 +-
>>>>>     lib/efi_loader/efi_freestanding.c       |  4 ++--
>>>>>     lib/trace.c                             | 26 +++++++++++--------------
>>>>>     9 files changed, 22 insertions(+), 25 deletions(-)
>>>>>
>>>> [snip]
>>>>
>>>>> diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
>>>>> index 08da7fed88e..0e026bb3d8e 100644
>>>>> --- a/common/spl/spl_fit.c
>>>>> +++ b/common/spl/spl_fit.c
>>>>> @@ -599,6 +599,7 @@ static int spl_fit_upload_fpga(struct spl_fit_info *ctx, int node,
>>>>>                         debug("Ignoring compatible = %s property\n",
>>>>>                               compatible);
>>>>>         }
>>>>> +     return 0;
>>>>>
>>>>>         ret = fpga_load(devnum, (void *)fpga_image->load_addr,
>>>>>                         fpga_image->size, BIT_FULL, flags);
>>>> This return makes the spl_fit_upload_fpga function useless. I assume
>>>> this change was by accident.
>>> Yes that was a mistake. I'll send a patch.
>> Thanks.
>>
>>> Do you think it would be possible to create a sandbox driver for the
>>> FPGA uclass? Then we could add some tests for this code.
>> A sandbox driver exists but the uclass is only an empty dummy.
>>
>> The fpga subsystem use its own structs to describe the hardware and the
>> fpga_load function for example is a wrapper for xilinx_load, altera_load
>> and lattice_load.
> Yes, I think fpga_load should become a uclass operation. See how this
> is done for other uclasses.

The problem is that the fpga subsystem doesn't use uclass at the moment. 
The fpga is init and added by the cpu code (see 
arch/arm/mach-zynq/cpu.c). The subsystem functions use the devnum 
(index) to select the added structure.

Is it possible to add a ulcass device from cpu code as a first step to 
convert the functions into uclass functions.

Regards
   Stefan



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