1 files changed, 77 insertions, 0 deletions
diff --git a/include/linux/adi-axi-common.h b/include/linux/adi-axi-common.h
new file mode 100644
index 000000000000..37962ba530df
--- /dev/null
+++ b/include/linux/adi-axi-common.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Analog Devices AXI common registers & definitions
+ *
+ * Copyright 2019 Analog Devices Inc.
+ *
+ * https://wiki.analog.com/resources/fpga/docs/axi_ip
+ * https://wiki.analog.com/resources/fpga/docs/hdl/regmap
+ */
+
+#include <linux/types.h>
+
+#ifndef ADI_AXI_COMMON_H_
+#define ADI_AXI_COMMON_H_
+
+#define ADI_AXI_REG_VERSION			0x0000
+#define ADI_AXI_REG_FPGA_INFO			0x001C
+
+#define ADI_AXI_PCORE_VER(major, minor, patch)	\
+	(((major) << 16) | ((minor) << 8) | (patch))
+
+#define ADI_AXI_PCORE_VER_MAJOR(version)	(((version) >> 16) & 0xff)
+#define ADI_AXI_PCORE_VER_MINOR(version)	(((version) >> 8) & 0xff)
+#define ADI_AXI_PCORE_VER_PATCH(version)	((version) & 0xff)
+
+/**
+ * adi_axi_pcore_ver_gteq() - check if a version is satisfied
+ * @version: the full version read from the hardware
+ * @major: the major version to compare against
+ * @minor: the minor version to compare against
+ *
+ * ADI AXI IP Cores use semantic versioning, so this can be used to check for
+ * feature availability.
+ *
+ * Return: true if the version is greater than or equal to the specified
+ *         major and minor version, false otherwise.
+ */
+static inline bool adi_axi_pcore_ver_gteq(u32 version, u32 major, u32 minor)
+{
+	return ADI_AXI_PCORE_VER_MAJOR(version) > (major) ||
+	       (ADI_AXI_PCORE_VER_MAJOR(version) == (major) &&
+		ADI_AXI_PCORE_VER_MINOR(version) >= (minor));
+}
+
+#define ADI_AXI_INFO_FPGA_TECH(info)            (((info) >> 24) & 0xff)
+#define ADI_AXI_INFO_FPGA_FAMILY(info)          (((info) >> 16) & 0xff)
+#define ADI_AXI_INFO_FPGA_SPEED_GRADE(info)     (((info) >> 8) & 0xff)
+
+enum adi_axi_fpga_technology {
+	ADI_AXI_FPGA_TECH_UNKNOWN = 0,
+	ADI_AXI_FPGA_TECH_SERIES7,
+	ADI_AXI_FPGA_TECH_ULTRASCALE,
+	ADI_AXI_FPGA_TECH_ULTRASCALE_PLUS,
+};
+
+enum adi_axi_fpga_family {
+	ADI_AXI_FPGA_FAMILY_UNKNOWN = 0,
+	ADI_AXI_FPGA_FAMILY_ARTIX,
+	ADI_AXI_FPGA_FAMILY_KINTEX,
+	ADI_AXI_FPGA_FAMILY_VIRTEX,
+	ADI_AXI_FPGA_FAMILY_ZYNQ,
+};
+
+enum adi_axi_fpga_speed_grade {
+	ADI_AXI_FPGA_SPEED_UNKNOWN      = 0,
+	ADI_AXI_FPGA_SPEED_1    = 10,
+	ADI_AXI_FPGA_SPEED_1L   = 11,
+	ADI_AXI_FPGA_SPEED_1H   = 12,
+	ADI_AXI_FPGA_SPEED_1HV  = 13,
+	ADI_AXI_FPGA_SPEED_1LV  = 14,
+	ADI_AXI_FPGA_SPEED_2    = 20,
+	ADI_AXI_FPGA_SPEED_2L   = 21,
+	ADI_AXI_FPGA_SPEED_2LV  = 22,
+	ADI_AXI_FPGA_SPEED_3    = 30,
+};
+
+#endif /* ADI_AXI_COMMON_H_ */