atl_hw.c File Reference

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

#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <byteswap.h>
#include <ipxe/pci.h>
#include "aqc1xx.h"
#include "atl_hw.h"
#include <compiler.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (BSD2)
int	atl_hw_reset_flb_ (struct atl_nic *nic)
int	atl_hw_reset_rbl_ (struct atl_nic *nic)
int	atl_hw_reset (struct atl_nic *nic)
int	atl_hw_start (struct atl_nic *nic)
int	atl_hw_stop (struct atl_nic *nic)
int	atl_hw_get_link (struct atl_nic *nic)
int	atl_hw_read_mem (struct atl_nic *nic, uint32_t addr, uint32_t *buffer, uint32_t size)
int	atl_hw_get_mac (struct atl_nic *nic, uint8_t *mac)

Variables
struct atl_hw_ops	atl_hw

Detailed Description

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

Copyright(C) 2017-2024 Marvell

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:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. 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 atl_hw.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

BSD2

)

atl_hw_reset_flb_()

int atl_hw_reset_flb_

(

struct atl_nic *

nic

)

Definition at line 44 of file atl_hw.c.

                                              {
        uint32_t val;
        int k = 0;

        ATL_WRITE_REG ( ATL_GLB_CTRL2_MBOX_ERR_UP_RUN_STALL, ATL_GLB_CTRL2 );
        mdelay ( ATL_DELAY_50_MNS );

        /* Cleanup SPI */
        val = ATL_READ_REG ( ATL_GLB_NVR_PROV4 );
        ATL_WRITE_REG ( val | ATL_GBL_NVR_PROV4_RESET, ATL_GLB_NVR_PROV4 );

        ATL_WRITE_REG( ( ATL_READ_REG ( ATL_GLB_STD_CTRL ) &
                      ~ATL_GLB_CTRL_RST_DIS ) | ATL_GLB_STD_CTRL_RESET,
                        ATL_GLB_STD_CTRL );

        /* Kickstart MAC */
        ATL_WRITE_REG ( ATL_GLB_CTRL2_FW_RESET, ATL_GLB_CTRL2 );
        ATL_WRITE_REG ( ATL_MIF_PWR_GATING_EN_CTRL_RESET,
                        ATL_MIF_PWR_GATING_EN_CTRL );

        ATL_WRITE_REG ( ATL_GEN_PROV9_ENABLE, ATL_GEN_PROV9 );

        /* Reset SPI again because of possible interrupted SPI burst */
        val = ATL_READ_REG ( ATL_GLB_NVR_PROV4 );
        ATL_WRITE_REG ( val | ATL_GBL_NVR_PROV4_RESET, ATL_GLB_NVR_PROV4 );
        mdelay ( ATL_DELAY_10_MNS );
        /* Clear SPI reset state */
        ATL_WRITE_REG ( val & ~ATL_GBL_NVR_PROV4_RESET, ATL_GLB_NVR_PROV4 );

        /* MAC Kickstart */
        ATL_WRITE_REG ( ATL_GLB_CTRL2_MAC_KICK_START, ATL_GLB_CTRL2 );

        for (k = 0; k < 1000; k++) {
                uint32_t flb_status = ATL_READ_REG ( ATL_MPI_DAISY_CHAIN_STS );

                flb_status = flb_status & FLB_LOAD_STS;
                if ( flb_status )
                        break;
                mdelay ( ATL_DELAY_10_MNS );
        }
        if ( k == 1000 ) {
                DBGC (nic, "MAC kickstart failed\n" );
                return -EIO;
        }

        /* FW reset */
        ATL_WRITE_REG ( ATL_GLB_CTRL2_FW_RESET, ATL_GLB_CTRL2 );
        mdelay ( ATL_DELAY_50_MNS );

        ATL_WRITE_REG ( ATL_GBL_MCP_SEM1_RELEASE, ATL_GLB_MCP_SEM1 );

        /* Global software reset*/
        ATL_WRITE_REG ( ATL_READ_REG ( ATL_RX_CTRL ) &
                        ~ATL_RX_CTRL_RST_DIS, ATL_RX_CTRL );
        ATL_WRITE_REG ( ATL_READ_REG ( ATL_TX_CTRL ) &
                        ~ATL_TX_CTRL_RST_DIS, ATL_TX_CTRL );

        ATL_WRITE_REG ( ATL_READ_REG ( ATL_MAC_PHY_CTRL ) &
                        ~ATL_MAC_PHY_CTRL_RST_DIS, ATL_MAC_PHY_CTRL );

        ATL_WRITE_REG ( ( ATL_READ_REG ( ATL_GLB_STD_CTRL ) &
                        ~ATL_GLB_CTRL_RST_DIS ) | ATL_GLB_STD_CTRL_RESET,
                        ATL_GLB_STD_CTRL );

        for (k = 0; k < 1000; k++) {
                u32 fw_state = ATL_READ_REG ( ATL_FW_VER );

                if ( fw_state )
                        break;
                mdelay ( ATL_DELAY_10_MNS );
        }
        if ( k == 1000 ) {
                DBGC ( nic, "FW kickstart failed\n" );
                return -EIO;
        }
        /* Old FW requires fixed delay after init */
        mdelay ( ATL_DELAY_15_MNS );

        return 0;
}

References ATL_DELAY_10_MNS, ATL_DELAY_15_MNS, ATL_DELAY_50_MNS, ATL_FW_VER, ATL_GBL_MCP_SEM1_RELEASE, ATL_GBL_NVR_PROV4_RESET, ATL_GEN_PROV9, ATL_GEN_PROV9_ENABLE, ATL_GLB_CTRL2, ATL_GLB_CTRL2_FW_RESET, ATL_GLB_CTRL2_MAC_KICK_START, ATL_GLB_CTRL2_MBOX_ERR_UP_RUN_STALL, ATL_GLB_CTRL_RST_DIS, ATL_GLB_MCP_SEM1, ATL_GLB_NVR_PROV4, ATL_GLB_STD_CTRL, ATL_GLB_STD_CTRL_RESET, ATL_MAC_PHY_CTRL, ATL_MAC_PHY_CTRL_RST_DIS, ATL_MIF_PWR_GATING_EN_CTRL, ATL_MIF_PWR_GATING_EN_CTRL_RESET, ATL_MPI_DAISY_CHAIN_STS, ATL_READ_REG, ATL_RX_CTRL, ATL_RX_CTRL_RST_DIS, ATL_TX_CTRL, ATL_TX_CTRL_RST_DIS, ATL_WRITE_REG, DBGC, EIO, FLB_LOAD_STS, k, mdelay(), and val.

Referenced by atl_hw_reset().

atl_hw_reset_rbl_()

int atl_hw_reset_rbl_

(

struct atl_nic *

nic

)

Definition at line 125 of file atl_hw.c.

                                              {
        uint32_t val, rbl_status;
        int k;

        ATL_WRITE_REG ( ATL_GLB_CTRL2_MBOX_ERR_UP_RUN_STALL, ATL_GLB_CTRL2 );
        ATL_WRITE_REG ( ATL_GBL_MCP_SEM1_RELEASE, ATL_GLB_MCP_SEM1 );
        ATL_WRITE_REG ( ATL_MIF_PWR_GATING_EN_CTRL_RESET,
                        ATL_MIF_PWR_GATING_EN_CTRL );

        /* Alter RBL status */
        ATL_WRITE_REG ( POISON_SIGN, ATL_MPI_BOOT_EXIT_CODE );

        /* Cleanup SPI */
        val = ATL_READ_REG ( ATL_GLB_NVR_PROV4 );
        ATL_WRITE_REG ( val | ATL_GBL_NVR_PROV4_RESET, ATL_GLB_NVR_PROV4 );

        /* Global software reset*/
        ATL_WRITE_REG ( ATL_READ_REG ( ATL_RX_CTRL ) & ~ATL_RX_CTRL_RST_DIS,
                        ATL_RX_CTRL );
        ATL_WRITE_REG ( ATL_READ_REG ( ATL_TX_CTRL ) & ~ATL_TX_CTRL_RST_DIS,
                        ATL_TX_CTRL );
        ATL_WRITE_REG ( ATL_READ_REG ( ATL_MAC_PHY_CTRL ) &
                        ~ATL_MAC_PHY_CTRL_RST_DIS, ATL_MAC_PHY_CTRL );

        ATL_WRITE_REG ( ( ATL_READ_REG ( ATL_GLB_STD_CTRL ) &
                        ~ATL_GLB_CTRL_RST_DIS ) | ATL_GLB_STD_CTRL_RESET,
                        ATL_GLB_STD_CTRL );

        ATL_WRITE_REG ( ATL_GLB_CTRL2_MBOX_ERR_UP_RUN_NORMAL, ATL_GLB_CTRL2 );

        /* Wait for RBL boot */
        for ( k = 0; k < 1000; k++ ) {
                rbl_status = ATL_READ_REG ( ATL_MPI_BOOT_EXIT_CODE ) & 0xFFFF;
                if ( rbl_status && rbl_status != POISON_SIGN )
                        break;
                mdelay ( ATL_DELAY_10_MNS );
        }
        if ( !rbl_status || rbl_status == POISON_SIGN ) {
                DBGC ( nic, "RBL Restart failed\n" );
                return -EIO;
        }

        if ( rbl_status == FW_NOT_SUPPORT )
                return -ENOTSUP;

        for ( k = 0; k < 1000; k++ ) {
                u32 fw_state = ATL_READ_REG ( ATL_FW_VER );

                if ( fw_state )
                        break;
                mdelay ( ATL_DELAY_10_MNS );
        }
        if ( k == 1000 ) {
                DBGC ( nic, "FW kickstart failed\n" );
                return -EIO;
        }
        /* Old FW requires fixed delay after init */
        mdelay ( ATL_DELAY_15_MNS );

        return 0;
}

References ATL_DELAY_10_MNS, ATL_DELAY_15_MNS, ATL_FW_VER, ATL_GBL_MCP_SEM1_RELEASE, ATL_GBL_NVR_PROV4_RESET, ATL_GLB_CTRL2, ATL_GLB_CTRL2_MBOX_ERR_UP_RUN_NORMAL, ATL_GLB_CTRL2_MBOX_ERR_UP_RUN_STALL, ATL_GLB_CTRL_RST_DIS, ATL_GLB_MCP_SEM1, ATL_GLB_NVR_PROV4, ATL_GLB_STD_CTRL, ATL_GLB_STD_CTRL_RESET, ATL_MAC_PHY_CTRL, ATL_MAC_PHY_CTRL_RST_DIS, ATL_MIF_PWR_GATING_EN_CTRL, ATL_MIF_PWR_GATING_EN_CTRL_RESET, ATL_MPI_BOOT_EXIT_CODE, ATL_READ_REG, ATL_RX_CTRL, ATL_RX_CTRL_RST_DIS, ATL_TX_CTRL, ATL_TX_CTRL_RST_DIS, ATL_WRITE_REG, DBGC, EIO, ENOTSUP, FW_NOT_SUPPORT, k, mdelay(), POISON_SIGN, and val.

Referenced by atl_hw_reset().

atl_hw_reset()

int atl_hw_reset

(

struct atl_nic *

nic

)

Definition at line 187 of file atl_hw.c.

                                         {
        uint32_t boot_exit_code = 0;
        uint32_t k;
        int rbl_enabled;
        uint32_t fw_ver;
        uint32_t sem_timeout;

        for ( k = 0; k < 1000; ++k ) {
                uint32_t flb_status = ATL_READ_REG ( ATL_MPI_DAISY_CHAIN_STS );
                boot_exit_code = ATL_READ_REG ( ATL_MPI_BOOT_EXIT_CODE );
                if ( flb_status != ATL_MPI_DAISY_CHAIN_STS_ERROR_STATUS ||
                        boot_exit_code != 0 )
                        break;
        }

        if ( k == 1000 ) {
                DBGC ( nic, "Neither RBL nor FLB firmware started\n" );
                return -ENOTSUP;
        }

        rbl_enabled = ( boot_exit_code != 0 );

        fw_ver = ATL_READ_REG ( ATL_FW_VER );
        if ( ( ( fw_ver >> 24 ) & 0xFF ) >= 4 ) {
                sem_timeout = ATL_READ_REG ( ATL_SEM_TIMEOUT );
                if ( sem_timeout > ATL_SEM_MAX_TIMEOUT )
                        sem_timeout = ATL_SEM_MAX_TIMEOUT;

                for ( k = 0; k < sem_timeout; ++k ) {
                        if ( ATL_READ_REG ( ATL_GLB_MCP_SEM4 ) )
                                break;

                        mdelay ( ATL_DELAY_1_MNS );
                }
                for ( k = 0; k < sem_timeout; ++k ) {
                        if ( ATL_READ_REG ( ATL_GLB_MCP_SEM5 ) )
                                break;

                        mdelay ( ATL_DELAY_1_MNS );
                }
        }


        if ( rbl_enabled )
                return atl_hw_reset_rbl_ ( nic );
        else
                return atl_hw_reset_flb_ ( nic );
}

References ATL_DELAY_1_MNS, ATL_FW_VER, ATL_GLB_MCP_SEM4, ATL_GLB_MCP_SEM5, atl_hw_reset_flb_(), atl_hw_reset_rbl_(), ATL_MPI_BOOT_EXIT_CODE, ATL_MPI_DAISY_CHAIN_STS, ATL_MPI_DAISY_CHAIN_STS_ERROR_STATUS, ATL_READ_REG, ATL_SEM_MAX_TIMEOUT, ATL_SEM_TIMEOUT, DBGC, ENOTSUP, fw_ver, k, and mdelay().

atl_hw_start()

int atl_hw_start

(

struct atl_nic *

nic

)

Definition at line 236 of file atl_hw.c.

                                         {
        ATL_WRITE_REG ( ATL_LINK_ADV_AUTONEG, ATL_LINK_ADV );
        return 0;
}

References ATL_LINK_ADV, ATL_LINK_ADV_AUTONEG, and ATL_WRITE_REG.

atl_hw_stop()

int atl_hw_stop

(

struct atl_nic *

nic

)

Definition at line 241 of file atl_hw.c.

                                        {
        ATL_WRITE_REG ( ATL_SHUT_LINK, ATL_LINK_ADV );
        return 0;
}

References ATL_LINK_ADV, ATL_SHUT_LINK, and ATL_WRITE_REG.

atl_hw_get_link()

int atl_hw_get_link

(

struct atl_nic *

nic

)

Definition at line 246 of file atl_hw.c.

                                            {
        return ( ATL_READ_REG ( ATL_LINK_ST) & ATL_LINK_ADV_AUTONEG ) != 0;
}

References ATL_LINK_ADV_AUTONEG, ATL_LINK_ST, and ATL_READ_REG.

atl_hw_read_mem()

int atl_hw_read_mem	(	struct atl_nic *	nic,
		uint32_t	addr,
		uint32_t *	buffer,
		uint32_t	size
	)

Definition at line 250 of file atl_hw.c.

                                    {
        uint32_t i;

        for ( i = 0; i < 100; ++i ) {
                if ( ATL_READ_REG( ATL_SEM_RAM ) )
                        break;
                mdelay ( ATL_DELAY_1_MNS );
        }
        if ( i == 100 ) {
                DBGC ( nic, "Semaphore Register not set\n" );
                return -EIO;
        }

        ATL_WRITE_REG ( addr, ATL_MBOX_CTRL3 );

        for ( i = 0; i < size; ++i, addr += 4 ) {
                uint32_t j;

                ATL_WRITE_REG ( ATL_MBOX_CTRL1_START_MBOX_OPT, ATL_MBOX_CTRL1 );
                for ( j = 0; j < 10000; ++j ) {
                        if ( ATL_READ_REG (ATL_MBOX_CTRL3 ) != addr )
                                break;
                        udelay ( ATL_DELAY_10_MNS );
                }
                if ( j == 10000 ) {
                        DBGC ( nic, "Reading from CTRL3 Register Failed\n" );
                        return -EIO;
                }

                buffer[i] = ATL_READ_REG ( ATL_MBOX_CTRL5 );
        }

        ATL_WRITE_REG( ATL_SEM_RAM_RESET, ATL_SEM_RAM );

        return 0;
}

References addr, ATL_DELAY_10_MNS, ATL_DELAY_1_MNS, ATL_MBOX_CTRL1, ATL_MBOX_CTRL1_START_MBOX_OPT, ATL_MBOX_CTRL3, ATL_MBOX_CTRL5, ATL_READ_REG, ATL_SEM_RAM, ATL_SEM_RAM_RESET, ATL_WRITE_REG, buffer, DBGC, EIO, mdelay(), size, and udelay().

Referenced by atl_hw_get_mac().

atl_hw_get_mac()

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

Definition at line 288 of file atl_hw.c.

                                                         {
        uint32_t mac_addr[2] = {0};
        int err = 0;
        uint32_t efuse_addr = ATL_READ_REG ( ATL_GLB_MCP_SP26 );

        if ( efuse_addr != 0) {
                uint32_t mac_efuse_addr = efuse_addr + 40 * sizeof ( uint32_t );
                err = atl_hw_read_mem ( nic, mac_efuse_addr, mac_addr, 2 );
                if ( err != 0 )
                        return err;

                mac_addr[0] = cpu_to_be32 ( mac_addr[0] );
                mac_addr[1] = cpu_to_be32 ( mac_addr[1] );

                memcpy ( mac, ( uint8_t * )mac_addr, ATL_MAC_ADDRESS_SIZE );
        }
        return 0;
}

References ATL_GLB_MCP_SP26, atl_hw_read_mem(), ATL_MAC_ADDRESS_SIZE, ATL_READ_REG, cpu_to_be32, mac, and memcpy().

Variable Documentation

atl_hw

struct atl_hw_ops atl_hw

Initial value:

= {
        .reset = atl_hw_reset,
        .start = atl_hw_start,
        .stop = atl_hw_stop,
        .get_link = atl_hw_get_link,
        .get_mac = atl_hw_get_mac,
}

Definition at line 307 of file atl_hw.c.

Referenced by atl_probe().