Commit a34b3e6e authored by Jiawen Wu's avatar Jiawen Wu Committed by David S. Miller
Browse files

net: txgbe: Store PCI info 



Get PCI config space info, set LAN id and check flash status.

Signed-off-by: default avatarJiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 957ed5e7

drivers/net/ethernet/wangxun/Kconfig

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@@ -16,6 +16,11 @@ config NET_VENDOR_WANGXUN 


if NET_VENDOR_WANGXUN



config LIBWX

	tristate

	help

	Common library for Wangxun(R) Ethernet drivers.



config NGBE

	tristate "Wangxun(R) GbE PCI Express adapters support"

	depends on PCI
@@ -32,6 +37,7 @@ config NGBE 
config TXGBE

	tristate "Wangxun(R) 10GbE PCI Express adapters support"

	depends on PCI

	select LIBWX

	help

	  This driver supports Wangxun(R) 10GbE PCI Express family of

	  adapters.

drivers/net/ethernet/wangxun/Makefile

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Original line number Diff line number Diff line
@@ -3,5 +3,6 @@ 
# Makefile for the Wangxun network device drivers.

#



obj-$(CONFIG_LIBWX) += libwx/

obj-$(CONFIG_TXGBE) += txgbe/

obj-$(CONFIG_NGBE) += ngbe/

drivers/net/ethernet/wangxun/libwx/Makefile

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# SPDX-License-Identifier: GPL-2.0

# Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd.

#



obj-$(CONFIG_LIBWX) += libwx.o



libwx-objs := wx_hw.o

drivers/net/ethernet/wangxun/libwx/wx_hw.c

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// SPDX-License-Identifier: GPL-2.0

/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */



#include <linux/iopoll.h>

#include <linux/pci.h>



#include "wx_type.h"

#include "wx_hw.h"



/* cmd_addr is used for some special command:

 * 1. to be sector address, when implemented erase sector command

 * 2. to be flash address when implemented read, write flash address

 */

static int wx_fmgr_cmd_op(struct wx_hw *wxhw, u32 cmd, u32 cmd_addr)

{

	u32 cmd_val = 0, val = 0;



	cmd_val = WX_SPI_CMD_CMD(cmd) |

		  WX_SPI_CMD_CLK(WX_SPI_CLK_DIV) |

		  cmd_addr;

	wr32(wxhw, WX_SPI_CMD, cmd_val);



	return read_poll_timeout(rd32, val, (val & 0x1), 10, 100000,

				 false, wxhw, WX_SPI_STATUS);

}



static int wx_flash_read_dword(struct wx_hw *wxhw, u32 addr, u32 *data)

{

	int ret = 0;



	ret = wx_fmgr_cmd_op(wxhw, WX_SPI_CMD_READ_DWORD, addr);

	if (ret < 0)

		return ret;



	*data = rd32(wxhw, WX_SPI_DATA);



	return ret;

}



int wx_check_flash_load(struct wx_hw *hw, u32 check_bit)

{

	u32 reg = 0;

	int err = 0;



	/* if there's flash existing */

	if (!(rd32(hw, WX_SPI_STATUS) &

	      WX_SPI_STATUS_FLASH_BYPASS)) {

		/* wait hw load flash done */

		err = read_poll_timeout(rd32, reg, !(reg & check_bit), 20000, 2000000,

					false, hw, WX_SPI_ILDR_STATUS);

		if (err < 0)

			wx_err(hw, "Check flash load timeout.\n");

	}



	return err;

}

EXPORT_SYMBOL(wx_check_flash_load);



int wx_sw_init(struct wx_hw *wxhw)

{

	struct pci_dev *pdev = wxhw->pdev;

	u32 ssid = 0;

	int err = 0;



	wxhw->vendor_id = pdev->vendor;

	wxhw->device_id = pdev->device;

	wxhw->revision_id = pdev->revision;

	wxhw->oem_svid = pdev->subsystem_vendor;

	wxhw->oem_ssid = pdev->subsystem_device;

	wxhw->bus.device = PCI_SLOT(pdev->devfn);

	wxhw->bus.func = PCI_FUNC(pdev->devfn);



	if (wxhw->oem_svid == PCI_VENDOR_ID_WANGXUN) {

		wxhw->subsystem_vendor_id = pdev->subsystem_vendor;

		wxhw->subsystem_device_id = pdev->subsystem_device;

	} else {

		err = wx_flash_read_dword(wxhw, 0xfffdc, &ssid);

		if (!err)

			wxhw->subsystem_device_id = swab16((u16)ssid);



		return err;

	}



	return 0;

}

EXPORT_SYMBOL(wx_sw_init);



MODULE_LICENSE("GPL");

drivers/net/ethernet/wangxun/libwx/wx_hw.h

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/* SPDX-License-Identifier: GPL-2.0 */

/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */



#ifndef _WX_HW_H_

#define _WX_HW_H_



int wx_check_flash_load(struct wx_hw *hw, u32 check_bit);

int wx_sw_init(struct wx_hw *wxhw);



#endif /* _WX_HW_H_ */