100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
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#include <linux/etherdevice.h>
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#include <linux/iopoll.h>
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#include <linux/pci.h>
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#include "../libwx/wx_type.h"
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#include "../libwx/wx_hw.h"
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#include "ngbe_type.h"
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#include "ngbe_hw.h"
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int ngbe_eeprom_chksum_hostif(struct wx *wx)
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{
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struct wx_hic_read_shadow_ram buffer;
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int status;
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int tmp;
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buffer.hdr.req.cmd = NGBE_FW_EEPROM_CHECKSUM_CMD;
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buffer.hdr.req.buf_lenh = 0;
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buffer.hdr.req.buf_lenl = 0;
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buffer.hdr.req.checksum = NGBE_FW_CMD_DEFAULT_CHECKSUM;
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/* convert offset from words to bytes */
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buffer.address = 0;
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/* one word */
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buffer.length = 0;
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status = wx_host_interface_command(wx, (u32 *)&buffer, sizeof(buffer),
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WX_HI_COMMAND_TIMEOUT, false);
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if (status < 0)
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return status;
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tmp = rd32a(wx, WX_MNG_MBOX, 1);
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if (tmp == NGBE_FW_CMD_ST_PASS)
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return 0;
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return -EIO;
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}
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static int ngbe_reset_misc(struct wx *wx)
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{
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wx_reset_misc(wx);
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if (wx->gpio_ctrl) {
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/* gpio0 is used to power on/off control*/
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wr32(wx, NGBE_GPIO_DDR, 0x1);
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ngbe_sfp_modules_txrx_powerctl(wx, false);
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}
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return 0;
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}
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void ngbe_sfp_modules_txrx_powerctl(struct wx *wx, bool swi)
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{
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/* gpio0 is used to power on control . 0 is on */
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wr32(wx, NGBE_GPIO_DR, swi ? 0 : NGBE_GPIO_DR_0);
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}
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/**
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* ngbe_reset_hw - Perform hardware reset
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* @wx: pointer to hardware structure
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*
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* Resets the hardware by resetting the transmit and receive units, masks
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* and clears all interrupts, perform a PHY reset, and perform a link (MAC)
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* reset.
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**/
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int ngbe_reset_hw(struct wx *wx)
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{
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u32 val = 0;
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int ret = 0;
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/* Call wx stop to disable tx/rx and clear interrupts */
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ret = wx_stop_adapter(wx);
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if (ret != 0)
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return ret;
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if (wx->mac_type != em_mac_type_mdi) {
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val = WX_MIS_RST_LAN_RST(wx->bus.func);
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wr32(wx, WX_MIS_RST, val | rd32(wx, WX_MIS_RST));
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ret = read_poll_timeout(rd32, val,
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!(val & (BIT(9) << wx->bus.func)), 1000,
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100000, false, wx, 0x10028);
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if (ret) {
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wx_err(wx, "Lan reset exceed s maximum times.\n");
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return ret;
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}
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}
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ngbe_reset_misc(wx);
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wx_clear_hw_cntrs(wx);
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/* Store the permanent mac address */
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wx_get_mac_addr(wx, wx->mac.perm_addr);
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/* reset num_rar_entries to 128 */
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wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;
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wx_init_rx_addrs(wx);
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pci_set_master(wx->pdev);
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return 0;
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}
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