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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */3 4#include <linux/etherdevice.h>5#include <linux/iopoll.h>6#include <linux/pci.h>7 8#include "../libwx/wx_type.h"9#include "../libwx/wx_hw.h"10#include "ngbe_type.h"11#include "ngbe_hw.h"12 13int ngbe_eeprom_chksum_hostif(struct wx *wx)14{15 struct wx_hic_read_shadow_ram buffer;16 int status;17 int tmp;18 19 buffer.hdr.req.cmd = NGBE_FW_EEPROM_CHECKSUM_CMD;20 buffer.hdr.req.buf_lenh = 0;21 buffer.hdr.req.buf_lenl = 0;22 buffer.hdr.req.checksum = NGBE_FW_CMD_DEFAULT_CHECKSUM;23 /* convert offset from words to bytes */24 buffer.address = 0;25 /* one word */26 buffer.length = 0;27 28 status = wx_host_interface_command(wx, (u32 *)&buffer, sizeof(buffer),29 WX_HI_COMMAND_TIMEOUT, false);30 31 if (status < 0)32 return status;33 tmp = rd32a(wx, WX_MNG_MBOX, 1);34 if (tmp == NGBE_FW_CMD_ST_PASS)35 return 0;36 return -EIO;37}38 39static int ngbe_reset_misc(struct wx *wx)40{41 wx_reset_misc(wx);42 if (wx->gpio_ctrl) {43 /* gpio0 is used to power on/off control*/44 wr32(wx, NGBE_GPIO_DDR, 0x1);45 ngbe_sfp_modules_txrx_powerctl(wx, false);46 }47 return 0;48}49 50void ngbe_sfp_modules_txrx_powerctl(struct wx *wx, bool swi)51{52 /* gpio0 is used to power on control . 0 is on */53 wr32(wx, NGBE_GPIO_DR, swi ? 0 : NGBE_GPIO_DR_0);54}55 56/**57 * ngbe_reset_hw - Perform hardware reset58 * @wx: pointer to hardware structure59 *60 * Resets the hardware by resetting the transmit and receive units, masks61 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)62 * reset.63 **/64int ngbe_reset_hw(struct wx *wx)65{66 u32 val = 0;67 int ret = 0;68 69 /* Call wx stop to disable tx/rx and clear interrupts */70 ret = wx_stop_adapter(wx);71 if (ret != 0)72 return ret;73 74 if (wx->mac_type != em_mac_type_mdi) {75 val = WX_MIS_RST_LAN_RST(wx->bus.func);76 wr32(wx, WX_MIS_RST, val | rd32(wx, WX_MIS_RST));77 78 ret = read_poll_timeout(rd32, val,79 !(val & (BIT(9) << wx->bus.func)), 1000,80 100000, false, wx, 0x10028);81 if (ret) {82 wx_err(wx, "Lan reset exceed s maximum times.\n");83 return ret;84 }85 }86 ngbe_reset_misc(wx);87 88 wx_clear_hw_cntrs(wx);89 90 /* Store the permanent mac address */91 wx_get_mac_addr(wx, wx->mac.perm_addr);92 93 /* reset num_rar_entries to 128 */94 wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;95 wx_init_rx_addrs(wx);96 pci_set_master(wx->pdev);97 98 return 0;99}100