firmware: Add Xilinx ZynqMP firmware driver

Add simple ZynqMP firmware drive to populate child nodes under zynqmp_firmware DT node. Signed-off-by: Rajan Vaja <[email protected]> Signed-off-by: Michal Simek <[email protected]>
pthomas · Feb 27, 2019 · 69a41b3 · 69a41b3
1 parent 0a1e859
commit 69a41b3
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diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
@@ -86,6 +86,7 @@ config CLK_ZYNQ
 config CLK_ZYNQMP
 	bool "Enable clock driver support for ZynqMP"
 	depends on ARCH_ZYNQMP
+	select ZYNQMP_FIRMWARE
 	help
 	  This clock driver adds support for clock realted settings for
 	  ZynqMP platform.

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
@@ -21,3 +21,13 @@ config TI_SCI_PROTOCOL
 
 	  This protocol library is used by client drivers to use the features
 	  provided by the system controller.
+
+config ZYNQMP_FIRMWARE
+	bool "ZynqMP Firmware interface"
+	select FIRMWARE
+	help
+	  Firmware interface driver is used by different
+	  drivers to communicate with the firmware for
+	  various platform management services.
+	  Say yes to enable ZynqMP firmware interface driver.
+	  If in doubt, say N.
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_FIRMWARE)		+= firmware-uclass.o
 obj-$(CONFIG_$(SPL_)ARM_PSCI_FW)	+= psci.o
 obj-$(CONFIG_TI_SCI_PROTOCOL)	+= ti_sci.o
 obj-$(CONFIG_SANDBOX)		+= firmware-sandbox.o
+obj-$(CONFIG_ZYNQMP_FIRMWARE)	+= firmware-zynqmp.o
diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dm.h>
+
+static const struct udevice_id zynqmp_firmware_ids[] = {
+	{ .compatible = "xlnx,zynqmp-firmware" },
+	{ }
+};
+
+U_BOOT_DRIVER(zynqmp_firmware) = {
+	.id = UCLASS_FIRMWARE,
+	.name = "zynqmp-firmware",
+	.probe = dm_scan_fdt_dev,
+	.of_match = zynqmp_firmware_ids,
+};