Sascha Hauer <sha@xxxxxxxxxxxxxx> writes:
> On Thu, Jan 21, 2021 at 12:29:55PM +0100, Steffen Trumtrar wrote:
>> From: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
>>
>> Add support for potentially defined FPGA-bridges in the overlay.
>>
>> While at it also add support for loading the firmware directly via a
>> path instead of 'needing' an overlay for that.
>> The direct loading will be done with the existent firmwareload command.
>>
>> Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
>> ---
>> drivers/of/Makefile | 3 +-
>> drivers/of/of_firmware.c | 88 ++++++++++++++++++++++++++++++++++++----
>> include/of.h | 21 +++++++---
>> 3 files changed, 96 insertions(+), 16 deletions(-)
>>
>> diff --git a/drivers/of/Makefile b/drivers/of/Makefile
>> index b6847752d2..6199c9791f 100644
>> --- a/drivers/of/Makefile
>> +++ b/drivers/of/Makefile
>> @@ -6,4 +6,5 @@ obj-y += partition.o
>> obj-y += of_net.o
>> obj-$(CONFIG_MTD) += of_mtd.o
>> obj-$(CONFIG_OF_BAREBOX_DRIVERS) += barebox.o
>> -obj-$(CONFIG_OF_OVERLAY) += overlay.o resolver.o of_firmware.o
>> +obj-$(CONFIG_OF_OVERLAY) += overlay.o resolver.o
>> +obj-$(CONFIG_FIRMWARE) += of_firmware.o
>> diff --git a/drivers/of/of_firmware.c b/drivers/of/of_firmware.c
>> index 096f84572e..ef0ccd0221 100644
>> --- a/drivers/of/of_firmware.c
>> +++ b/drivers/of/of_firmware.c
>> @@ -4,12 +4,52 @@
>> */
>> #include <common.h>
>> #include <firmware.h>
>> +#include <fpga-bridge.h>
>> #include <of.h>
>>
>> struct overlay_info {
>> const char *firmware_path;
>> };
>>
>> +#ifdef CONFIG_FPGA_BRIDGE
>
> Trailing whitespace here.
>
Meh :(
>> +int of_firmware_load_file(const char *path)
>> +{
>> + int err;
>> + struct device_node *target;
>> +
>> + target = of_find_compatible_node(NULL, NULL, "fpga-region");
>
> This assumes there is only one node compatible to fpga-region. What
> about others?
Ah, right, it is actually allowed to have multiple regions in one FPGA.
I didn't think about that.
Steffen
--
Pengutronix e.K. | Dipl.-Inform. Steffen Trumtrar |
Steuerwalder Str. 21 | https://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686| Fax: +49-5121-206917-5555 |
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