Marvell AQtion family network card driver, hardware-specific functions. More...

#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <byteswap.h>
#include <ipxe/pci.h>
#include "aqc1xx.h"
#include "atl2_hw.h"

Functions
	FILE_LICENCE (BSD2)
static int	atl2_hw_boot_completed_ (struct atl_nic *nic)
void	atl2_hw_read_shared_in_ (struct atl_nic nic, uint32_t offset, uint32_t data, uint32_t len)
void	atl2_hw_write_shared_in_ (struct atl_nic nic, uint32_t offset, uint32_t data, uint32_t len)
int	atl2_hw_finish_ack_ (struct atl_nic *nic, uint32_t ms)
int	atl2_hw_fw_init_ (struct atl_nic *nic)
int	atl2_hw_reset (struct atl_nic *nic)
int	atl2_hw_start (struct atl_nic *nic)
int	atl2_hw_stop (struct atl_nic *nic)
int	atl2_hw_get_link (struct atl_nic *nic)
int	atl2_hw_get_mac (struct atl_nic nic, uint8_t mac)

Variables
struct atl_hw_ops	atl2_hw

Detailed Description

Marvell AQtion family network card driver, hardware-specific functions.

SPDX-License-Identifier: BSD-2-Clause

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file atl2_hw.c.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( BSD2 )

◆ atl2_hw_boot_completed_()

int atl2_hw_boot_completed_ ( struct atl_nic * nic )

static

Definition at line 43 of file atl2_hw.c.

                                                           {
        uint32_t reset_status = ATL_READ_REG ( ATL2_GLB_RST_CTRL2 );
 
        return ( reset_status & ATL2_RESET_STATUS_BOOT_COMPLETED_MASK ) ||
                   ( ATL_READ_REG ( ATL2_HOST_ITR_REQ )
                   & ATL2_FW_HOST_INTERRUPT_REQUEST_READY );
}

References ATL2_FW_HOST_INTERRUPT_REQUEST_READY, ATL2_GLB_RST_CTRL2, ATL2_HOST_ITR_REQ, ATL2_RESET_STATUS_BOOT_COMPLETED_MASK, and ATL_READ_REG.

Referenced by atl2_hw_reset().

◆ atl2_hw_read_shared_in_()

void atl2_hw_read_shared_in_	(	struct atl_nic *	nic,
		uint32_t	offset,
		uint32_t *	data,
		uint32_t	len )

Definition at line 51 of file atl2_hw.c.

                                                                                               {
        uint32_t i;
 
        for (i = 0; i < len; ++i )
        {
                data[i] = ATL_READ_REG ( ATL2_MIF_SHARED_BUF_IN + offset + i * 4 );
        }
}

References ATL2_MIF_SHARED_BUF_IN, ATL_READ_REG, data, len, and offset.

Referenced by atl2_hw_fw_init_(), atl2_hw_get_mac(), atl2_hw_start(), and atl2_hw_stop().

◆ atl2_hw_write_shared_in_()

void atl2_hw_write_shared_in_	(	struct atl_nic *	nic,
		uint32_t	offset,
		uint32_t *	data,
		uint32_t	len )

Definition at line 61 of file atl2_hw.c.

                                                                                         {
        uint32_t i;
 
        for ( i = 0; i < len; ++i )
        {
                ATL_WRITE_REG ( data[i], ATL2_MIF_SHARED_BUF_IN + offset + i * 4 );
        }
}

References ATL2_MIF_SHARED_BUF_IN, ATL_WRITE_REG, data, len, and offset.

Referenced by atl2_hw_fw_init_(), atl2_hw_start(), and atl2_hw_stop().

◆ atl2_hw_finish_ack_()

int atl2_hw_finish_ack_	(	struct atl_nic *	nic,
		uint32_t	ms )

Definition at line 71 of file atl2_hw.c.

                                                             {
        uint32_t i;
        int err = 0;
 
        ATL_WRITE_REG ( ATL_READ_REG ( ATL2_HOST_FINISHED_WRITE )
        | 1, ATL2_HOST_FINISHED_WRITE );
 
        for ( i = 0; i < ( ms / 100 ); ++i )
        {
                if ( ( ATL_READ_REG ( ATL2_MCP_BUSY_WRITE ) & 1 ) == 0 )
                {
                        break;
                }
                udelay ( ATL2_DELAY_100 );
        }
        if (i == ( ms / 100 ) )
                err = -ETIME;
 
        return err;
}

References ATL2_DELAY_100, ATL2_HOST_FINISHED_WRITE, ATL2_MCP_BUSY_WRITE, ATL_READ_REG, ATL_WRITE_REG, ETIME, and udelay().

Referenced by atl2_hw_fw_init_(), atl2_hw_start(), and atl2_hw_stop().

◆ atl2_hw_fw_init_()

int atl2_hw_fw_init_ ( struct atl_nic * nic )

Definition at line 92 of file atl2_hw.c.

                                             {
        uint32_t val;
        int err = 0;
 
        atl2_hw_read_shared_in_ ( nic, ATL2_LINK_CTRL_IN_OFF, &val, 1 );
        val |= ( ATL2_HOST_MODE_ACTIVE | ( 1U << 13 ) );
        atl2_hw_write_shared_in_ ( nic, ATL2_LINK_CTRL_IN_OFF, &val, 1 );
 
        atl2_hw_read_shared_in_ ( nic, ATL2_MTU_IN_OFF, &val, 1 );
        val = 16352;
        atl2_hw_write_shared_in_ ( nic, ATL2_MTU_IN_OFF, &val, 1 );
 
        atl2_hw_read_shared_in_ ( nic, ATL2_LINK_OPTS_IN_OFF, &val, 1 );
        val = 0;
        atl2_hw_write_shared_in_( nic, ATL2_LINK_OPTS_IN_OFF, &val, 1 );
        err = atl2_hw_finish_ack_ ( nic, 50000000 );
 
        return err;
}

References ATL2_HOST_MODE_ACTIVE, atl2_hw_finish_ack_(), atl2_hw_read_shared_in_(), atl2_hw_write_shared_in_(), ATL2_LINK_CTRL_IN_OFF, ATL2_LINK_OPTS_IN_OFF, ATL2_MTU_IN_OFF, and val.

Referenced by atl2_hw_reset().

◆ atl2_hw_reset()

int atl2_hw_reset ( struct atl_nic * nic )

Definition at line 112 of file atl2_hw.c.

                                          {
        int completed = 0;
        uint32_t status = 0;
        uint32_t request;
        int err = 0;
        int i;
 
        request = ATL2_RESET_STATUS_REQ_GSR;
 
        ATL_WRITE_REG ( request, ATL2_GLB_RST_CTRL2 );
 
        /* Wait for boot code started every 10us, 200 ms */
        for ( i = 0; i < 20000; ++i )
        {
                status = ATL_READ_REG ( ATL2_GLB_RST_CTRL2 );
 
                if ( ( ( status & ATL2_RESET_STATUS_BC_STARTED ) &&
                         ( status != 0xFFFFFFFFu ) ) )
                        break;
 
                udelay ( ATL2_DELAY_10 );
        }
        if ( i == 20000 )
        {
                DBGC ( nic, "Boot code hanged" );
                err = -EIO;
                goto err_exit;
        }
 
        /* Wait for boot succeed, failed or host request every 10us, 480ms */
        for ( i = 0; i < 48000; ++i )
        {
                completed = atl2_hw_boot_completed_ ( nic );
                if ( completed )
                        break;
 
                udelay ( ATL2_DELAY_10 );
        }
 
        if ( !completed )
        {
                DBGC ( nic, "FW Restart timed out" );
                err = -ETIME;
                goto err_exit;
        }
 
        status = ATL_READ_REG ( ATL2_GLB_RST_CTRL2 );
 
        if ( status & ATL2_RESET_STATUS_BOOT_FAILED_MASK )
        {
                err = -EIO;
                DBGC ( nic, "FW Restart failed" );
                DBGC ( nic, "status = 0x%x", status );
                goto err_exit;
        }
 
        if ( ATL_READ_REG ( ATL2_HOST_ITR_REQ )
                        & ATL2_FW_HOST_INTERRUPT_REQUEST_READY )
        {
                err = -ENOTSUP;
                DBGC ( nic, "Dynamic FW load not implemented" );
                goto err_exit;
        }
 
        err = atl2_hw_fw_init_ ( nic );
 
err_exit:
        return err;
}

References ATL2_DELAY_10, ATL2_FW_HOST_INTERRUPT_REQUEST_READY, ATL2_GLB_RST_CTRL2, ATL2_HOST_ITR_REQ, atl2_hw_boot_completed_(), atl2_hw_fw_init_(), ATL2_RESET_STATUS_BC_STARTED, ATL2_RESET_STATUS_BOOT_FAILED_MASK, ATL2_RESET_STATUS_REQ_GSR, ATL_READ_REG, ATL_WRITE_REG, DBGC, EIO, ENOTSUP, ETIME, request, status, and udelay().

◆ atl2_hw_start()

int atl2_hw_start ( struct atl_nic * nic )

Definition at line 182 of file atl2_hw.c.

                                          {
        uint32_t val;
 
        atl2_hw_read_shared_in_ ( nic, ATL2_LINK_OPTS_IN_OFF, &val, 1 );
        val = 0x4B00FFE1;
        atl2_hw_write_shared_in_ ( nic, ATL2_LINK_OPTS_IN_OFF, &val, 1 );
 
        return atl2_hw_finish_ack_ ( nic, 100000 );
}

References atl2_hw_finish_ack_(), atl2_hw_read_shared_in_(), atl2_hw_write_shared_in_(), ATL2_LINK_OPTS_IN_OFF, and val.

◆ atl2_hw_stop()

int atl2_hw_stop ( struct atl_nic * nic )

Definition at line 192 of file atl2_hw.c.

                                         {
        uint32_t val;
 
        atl2_hw_read_shared_in_ ( nic, ATL2_LINK_OPTS_IN_OFF, &val, 1 );
        val = 0;
        atl2_hw_write_shared_in_ ( nic, ATL2_LINK_OPTS_IN_OFF, &val, 1 );
 
        return atl2_hw_finish_ack_ ( nic, 100000 );
}

References atl2_hw_finish_ack_(), atl2_hw_read_shared_in_(), atl2_hw_write_shared_in_(), ATL2_LINK_OPTS_IN_OFF, and val.

◆ atl2_hw_get_link()

int atl2_hw_get_link ( struct atl_nic * nic )

Definition at line 202 of file atl2_hw.c.

                                             {
        uint32_t val;
 
        val = ATL_READ_REG ( ATL2_MIF_SHARED_BUF_OUT + ATL2_LINK_STS_OUT_OFF );
 
        return ( ( val & 0xf ) != 0 ) && ( ( val & 0xF0 ) != 0 );
}

References ATL2_LINK_STS_OUT_OFF, ATL2_MIF_SHARED_BUF_OUT, ATL_READ_REG, and val.

◆ atl2_hw_get_mac()

int atl2_hw_get_mac	(	struct atl_nic *	nic,
		uint8_t *	mac )

Definition at line 210 of file atl2_hw.c.

                                                          {
        uint32_t mac_addr[2] = {0};
 
        atl2_hw_read_shared_in_ ( nic, ATL2_MAC_ADDR_IN_OFF, mac_addr, 2 );
 
        memcpy ( mac, ( uint8_t * )mac_addr, 6 );
 
        return 0;
}

References atl2_hw_read_shared_in_(), ATL2_MAC_ADDR_IN_OFF, mac, and memcpy().

Variable Documentation

◆ atl2_hw

struct atl_hw_ops atl2_hw

Initial value:

= {
        .reset = atl2_hw_reset,
        .start = atl2_hw_start,
        .stop = atl2_hw_stop,
        .get_link = atl2_hw_get_link,
        .get_mac = atl2_hw_get_mac,
}

Definition at line 220 of file atl2_hw.c.

                            {
        .reset = atl2_hw_reset,
        .start = atl2_hw_start,
        .stop = atl2_hw_stop,
        .get_link = atl2_hw_get_link,
        .get_mac = atl2_hw_get_mac,
};

Referenced by atl_probe(), and FILE_LICENCE().

Functions

Variables