1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c
new file mode 100644
index 000000000000..0e3923b3737e
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "ngbe_type.h"
+#include "ngbe_hw.h"
+#include "ngbe.h"
+
+int ngbe_eeprom_chksum_hostif(struct ngbe_hw *hw)
+{
+	struct wx_hic_read_shadow_ram buffer;
+	struct wx_hw *wxhw = &hw->wxhw;
+	int status;
+	int tmp;
+
+	buffer.hdr.req.cmd = NGBE_FW_EEPROM_CHECKSUM_CMD;
+	buffer.hdr.req.buf_lenh = 0;
+	buffer.hdr.req.buf_lenl = 0;
+	buffer.hdr.req.checksum = NGBE_FW_CMD_DEFAULT_CHECKSUM;
+	/* convert offset from words to bytes */
+	buffer.address = 0;
+	/* one word */
+	buffer.length = 0;
+
+	status = wx_host_interface_command(wxhw, (u32 *)&buffer, sizeof(buffer),
+					   WX_HI_COMMAND_TIMEOUT, false);
+
+	if (status < 0)
+		return status;
+	tmp = rd32a(wxhw, WX_MNG_MBOX, 1);
+	if (tmp == NGBE_FW_CMD_ST_PASS)
+		return 0;
+	return -EIO;
+}
+
+static int ngbe_reset_misc(struct ngbe_hw *hw)
+{
+	struct wx_hw *wxhw = &hw->wxhw;
+
+	wx_reset_misc(wxhw);
+	if (hw->mac_type == ngbe_mac_type_rgmii)
+		wr32(wxhw, NGBE_MDIO_CLAUSE_SELECT, 0xF);
+	if (hw->gpio_ctrl) {
+		/* gpio0 is used to power on/off control*/
+		wr32(wxhw, NGBE_GPIO_DDR, 0x1);
+		wr32(wxhw, NGBE_GPIO_DR, NGBE_GPIO_DR_0);
+	}
+	return 0;
+}
+
+/**
+ *  ngbe_reset_hw - Perform hardware reset
+ *  @hw: pointer to hardware structure
+ *
+ *  Resets the hardware by resetting the transmit and receive units, masks
+ *  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
+ *  reset.
+ **/
+int ngbe_reset_hw(struct ngbe_hw *hw)
+{
+	struct wx_hw *wxhw = &hw->wxhw;
+	int status = 0;
+	u32 reset = 0;
+
+	/* Call adapter stop to disable tx/rx and clear interrupts */
+	status = wx_stop_adapter(wxhw);
+	if (status != 0)
+		return status;
+	reset = WX_MIS_RST_LAN_RST(wxhw->bus.func);
+	wr32(wxhw, WX_MIS_RST, reset | rd32(wxhw, WX_MIS_RST));
+	ngbe_reset_misc(hw);
+
+	/* Store the permanent mac address */
+	wx_get_mac_addr(wxhw, wxhw->mac.perm_addr);
+
+	/* reset num_rar_entries to 128 */
+	wxhw->mac.num_rar_entries = NGBE_RAR_ENTRIES;
+	wx_init_rx_addrs(wxhw);
+	pci_set_master(wxhw->pdev);
+
+	return 0;
+}