net: atlantic: minimal A2 HW bindings required for fw_ops

This patch adds the bare minimum of A2 HW bindings required to
get fw_ops working.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/Makefile

@@ -25,6 +25,7 @@ atlantic-objs := aq_main.o \
 	hw_atl/hw_atl_utils.o \
 	hw_atl/hw_atl_utils_fw2x.o \
 	hw_atl/hw_atl_llh.o \
+	hw_atl2/hw_atl2_llh.o \
 	macsec/macsec_api.o
 
 atlantic-$(CONFIG_MACSEC) += aq_macsec.o

drivers/net/ethernet/aquantia/atlantic/aq_hw.h

@@ -172,6 +172,7 @@ struct aq_hw_s {
 	struct hw_atl_utils_fw_rpc rpc;
 	s64 ptp_clk_offset;
 	u16 phy_id;
+	void *priv;
 };
 
 struct aq_ring_s;

drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_llh.c

+// SPDX-License-Identifier: GPL-2.0-only
+/* Atlantic Network Driver
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#include "hw_atl2_llh.h"
+#include "hw_atl2_llh_internal.h"
+#include "aq_hw_utils.h"
+
+void hw_atl2_mif_shared_buf_get(struct aq_hw_s *aq_hw, int offset, u32 *data,
+				int len)
+{
+	int j = 0;
+	int i;
+
+	for (i = offset; i < offset + len; i++, j++)
+		data[j] = aq_hw_read_reg(aq_hw,
+					 HW_ATL2_MIF_SHARED_BUFFER_IN_ADR(i));
+}
+
+void hw_atl2_mif_shared_buf_write(struct aq_hw_s *aq_hw, int offset, u32 *data,
+				  int len)
+{
+	int j = 0;
+	int i;
+
+	for (i = offset; i < offset + len; i++, j++)
+		aq_hw_write_reg(aq_hw, HW_ATL2_MIF_SHARED_BUFFER_IN_ADR(i),
+				data[j]);
+}
+
+void hw_atl2_mif_shared_buf_read(struct aq_hw_s *aq_hw, int offset, u32 *data,
+				 int len)
+{
+	int j = 0;
+	int i;
+
+	for (i = offset; i < offset + len; i++, j++)
+		data[j] = aq_hw_read_reg(aq_hw,
+					 HW_ATL2_MIF_SHARED_BUFFER_OUT_ADR(i));
+}
+
+void hw_atl2_mif_host_finished_write_set(struct aq_hw_s *aq_hw, u32 finish)
+{
+	aq_hw_write_reg_bit(aq_hw, HW_ATL2_MIF_HOST_FINISHED_WRITE_ADR,
+			    HW_ATL2_MIF_HOST_FINISHED_WRITE_MSK,
+			    HW_ATL2_MIF_HOST_FINISHED_WRITE_SHIFT,
+			    finish);
+}
+
+u32 hw_atl2_mif_mcp_finished_read_get(struct aq_hw_s *aq_hw)
+{
+	return aq_hw_read_reg_bit(aq_hw, HW_ATL2_MIF_MCP_FINISHED_READ_ADR,
+				  HW_ATL2_MIF_MCP_FINISHED_READ_MSK,
+				  HW_ATL2_MIF_MCP_FINISHED_READ_SHIFT);
+}

drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_llh.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Atlantic Network Driver
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#ifndef HW_ATL2_LLH_H
+#define HW_ATL2_LLH_H
+
+#include <linux/types.h>
+
+struct aq_hw_s;
+
+/* get data from firmware shared input buffer */
+void hw_atl2_mif_shared_buf_get(struct aq_hw_s *aq_hw, int offset, u32 *data,
+				int len);
+
+/* set data into firmware shared input buffer */
+void hw_atl2_mif_shared_buf_write(struct aq_hw_s *aq_hw, int offset, u32 *data,
+				  int len);
+
+/* get data from firmware shared output buffer */
+void hw_atl2_mif_shared_buf_read(struct aq_hw_s *aq_hw, int offset, u32 *data,
+				 int len);
+
+/* set host finished write shared buffer indication */
+void hw_atl2_mif_host_finished_write_set(struct aq_hw_s *aq_hw, u32 finish);
+
+/* get mcp finished read shared buffer indication */
+u32 hw_atl2_mif_mcp_finished_read_get(struct aq_hw_s *aq_hw);
+
+#endif /* HW_ATL2_LLH_H */

drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_llh_internal.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Atlantic Network Driver
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#ifndef HW_ATL2_LLH_INTERNAL_H
+#define HW_ATL2_LLH_INTERNAL_H
+
+/* Register address for firmware shared input buffer */
+#define HW_ATL2_MIF_SHARED_BUFFER_IN_ADR(dword) (0x00012000U + (dword) * 0x4U)
+/* Register address for firmware shared output buffer */
+#define HW_ATL2_MIF_SHARED_BUFFER_OUT_ADR(dword) (0x00013000U + (dword) * 0x4U)
+
+/* pif_host_finished_buf_wr_i Bitfield Definitions
+ * Preprocessor definitions for the bitfield "pif_host_finished_buf_wr_i".
+ * PORT="pif_host_finished_buf_wr_i"
+ */
+/* Register address for bitfield rpif_host_finished_buf_wr_i */
+#define HW_ATL2_MIF_HOST_FINISHED_WRITE_ADR 0x00000e00u
+/* Bitmask for bitfield pif_host_finished_buf_wr_i */
+#define HW_ATL2_MIF_HOST_FINISHED_WRITE_MSK 0x00000001u
+/* Inverted bitmask for bitfield pif_host_finished_buf_wr_i */
+#define HW_ATL2_MIF_HOST_FINISHED_WRITE_MSKN 0xFFFFFFFEu
+/* Lower bit position of bitfield pif_host_finished_buf_wr_i */
+#define HW_ATL2_MIF_HOST_FINISHED_WRITE_SHIFT 0
+/* Width of bitfield pif_host_finished_buf_wr_i */
+#define HW_ATL2_MIF_HOST_FINISHED_WRITE_WIDTH 1
+/* Default value of bitfield pif_host_finished_buf_wr_i */
+#define HW_ATL2_MIF_HOST_FINISHED_WRITE_DEFAULT 0x0
+
+/* pif_mcp_finished_buf_rd_i Bitfield Definitions
+ * Preprocessor definitions for the bitfield "pif_mcp_finished_buf_rd_i".
+ * PORT="pif_mcp_finished_buf_rd_i"
+ */
+/* Register address for bitfield pif_mcp_finished_buf_rd_i */
+#define HW_ATL2_MIF_MCP_FINISHED_READ_ADR 0x00000e04u
+/* Bitmask for bitfield pif_mcp_finished_buf_rd_i */
+#define HW_ATL2_MIF_MCP_FINISHED_READ_MSK 0x00000001u
+/* Inverted bitmask for bitfield pif_mcp_finished_buf_rd_i */
+#define HW_ATL2_MIF_MCP_FINISHED_READ_MSKN 0xFFFFFFFEu
+/* Lower bit position of bitfield pif_mcp_finished_buf_rd_i */
+#define HW_ATL2_MIF_MCP_FINISHED_READ_SHIFT 0
+/* Width of bitfield pif_mcp_finished_buf_rd_i */
+#define HW_ATL2_MIF_MCP_FINISHED_READ_WIDTH 1
+/* Default value of bitfield pif_mcp_finished_buf_rd_i */
+#define HW_ATL2_MIF_MCP_FINISHED_READ_DEFAULT 0x0
+
+#endif /* HW_ATL2_LLH_INTERNAL_H */