dm: fpga: Introduce new uclass
For future DM based FPGA drivers and for now to have a meaningful
logging class for old FPGA drivers.
Suggested-by: Michal Simek <michal.simek@amd.com>
Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Dahl <post@lespocky.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20220930120430.42307-2-post@lespocky.de
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index e07a9cf..e2fd16e 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -118,4 +118,23 @@
Enables the fpga loads() functions that are used to load secure
(authenticated or encrypted or both) bitstreams on to FPGA.
+config DM_FPGA
+ bool "Enable Driver Model for FPGA drivers"
+ depends on DM
+ select FPGA
+ help
+ Enable driver model for Field-Programmable Gate Array (FPGA) devices.
+ The devices cover a wide range of applications and are configured at
+ runtime by loading a bitstream into the FPGA device.
+ Loading a bitstream from any kind of storage is the main task of the
+ FPGA drivers.
+ For now this uclass has no methods yet.
+
+config SANDBOX_FPGA
+ bool "Enable sandbox FPGA driver"
+ depends on SANDBOX && DM_FPGA
+ help
+ This is a driver model based FPGA driver for sandbox.
+ Currently it is a stub only, as there are no usable uclass methods yet.
+
endmenu
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index 83243fb..610c168 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -4,6 +4,9 @@
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
obj-y += fpga.o
+obj-$(CONFIG_DM_FPGA) += fpga-uclass.o
+obj-$(CONFIG_SANDBOX_FPGA) += sandbox.o
+
obj-$(CONFIG_FPGA_SPARTAN2) += spartan2.o
obj-$(CONFIG_FPGA_SPARTAN3) += spartan3.o
obj-$(CONFIG_FPGA_VERSALPL) += versalpl.o
diff --git a/drivers/fpga/fpga-uclass.c b/drivers/fpga/fpga-uclass.c
new file mode 100644
index 0000000..4278ec2
--- /dev/null
+++ b/drivers/fpga/fpga-uclass.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 Alexander Dahl <post@lespocky.de>
+ */
+
+#include <dm.h>
+
+UCLASS_DRIVER(fpga) = {
+ .name = "fpga",
+ .id = UCLASS_FPGA,
+};
diff --git a/drivers/fpga/sandbox.c b/drivers/fpga/sandbox.c
new file mode 100644
index 0000000..f17a822
--- /dev/null
+++ b/drivers/fpga/sandbox.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 Alexander Dahl <post@lespocky.de>
+ */
+
+#include <dm.h>
+
+static const struct udevice_id sandbox_fpga_match[] = {
+ { .compatible = "sandbox,fpga" },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(sandbox_fpga) = {
+ .name = "sandbox_fpga",
+ .id = UCLASS_FPGA,
+ .of_match = sandbox_fpga_match,
+};