From: Christian Taedcke christian.taedcke@weidmueller.com
This enables implementing custom logic after a bitstream was loaded into the fpga.
Signed-off-by: Christian Taedcke christian.taedcke@weidmueller.com ---
Changes in v2: - replace __weak function with a new event
drivers/fpga/fpga.c | 18 ++++++++++++++++++ include/event.h | 16 ++++++++++++++++ 2 files changed, 34 insertions(+)
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c index 7f6b6bc73a..7b00bf4d55 100644 --- a/drivers/fpga/fpga.c +++ b/drivers/fpga/fpga.c @@ -244,6 +244,22 @@ int fpga_loads(int devnum, const void *buf, size_t size, } #endif
+static void fpga_load_event_notify(const void *buf, size_t bsize, int result) +{ +#if CONFIG_IS_ENABLED(EVENT) + int ret; + struct event_fpga_load load = { + .buf = buf, + .bsize = bsize, + .result = result + }; + + ret = event_notify(EVT_FPGA_LOAD, &load, sizeof(load)); + if (ret) + printf("%s: fpga load event failed: %d\n", __func__, ret); +#endif +} + /* * Generic multiplexing code */ @@ -284,6 +300,8 @@ int fpga_load(int devnum, const void *buf, size_t bsize, bitstream_type bstype, } }
+ fpga_load_event_notify(buf, bsize, ret_val); + return ret_val; }
diff --git a/include/event.h b/include/event.h index fe41080fa6..77124c2e73 100644 --- a/include/event.h +++ b/include/event.h @@ -31,6 +31,9 @@ enum event_t { /* Init hooks */ EVT_MISC_INIT_F,
+ /* Fpga load hook */ + EVT_FPGA_LOAD, + /* Device tree fixups before booting */ EVT_FT_FIXUP,
@@ -59,6 +62,19 @@ union event_data { struct udevice *dev; } dm;
+ /** + * struct event_fpga_load - fpga load event + * + * @buf: The buffer that was loaded into the fpga + * @bsize: The size of the buffer that was loaded into the fpga + * @result: Result of the load operation + */ + struct event_fpga_load { + const void *buf; + size_t bsize; + int result; + } fpga_load; + /** * struct event_ft_fixup - FDT fixup before booting *