path: root/drivers/net/ethernet/amd/xgbe/xgbe-common.h

/*
 * AMD 10Gb Ethernet driver
 *
 * This file is available to you under your choice of the following two
 * licenses:
 *
 * License 1: GPLv2
 *
 * Copyright (c) 2014 Advanced Micro Devices, Inc.
 *
 * This file is free software; you may copy, redistribute and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or (at
 * your option) any later version.
 *
 * This file is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
 *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
 *     Inc. unless otherwise expressly agreed to in writing between Synopsys
 *     and you.
 *
 *     The Software IS NOT an item of Licensed Software or Licensed Product
 *     under any End User Software License Agreement or Agreement for Licensed
 *     Product with Synopsys or any supplement thereto.  Permission is hereby
 *     granted, free of charge, to any person obtaining a copy of this software
 *     annotated with this license and the Software, to deal in the Software
 *     without restriction, including without limitation the rights to use,
 *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 *     of the Software, and to permit persons to whom the Software is furnished
 *     to do so, subject to the following conditions:
 *
 *     The above copyright notice and this permission notice shall be included
 *     in all copies or substantial portions of the Software.
 *
 *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
 *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
 *     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.
 *
 *
 * License 2: Modified BSD
 *
 * Copyright (c) 2014 Advanced Micro Devices, Inc.
 * All rights reserved.
 *
 * 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.
 *     * Neither the name of Advanced Micro Devices, Inc. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 <COPYRIGHT HOLDER> 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.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
 *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
 *     Inc. unless otherwise expressly agreed to in writing between Synopsys
 *     and you.
 *
 *     The Software IS NOT an item of Licensed Software or Licensed Product
 *     under any End User Software License Agreement or Agreement for Licensed
 *     Product with Synopsys or any supplement thereto.  Permission is hereby
 *     granted, free of charge, to any person obtaining a copy of this software
 *     annotated with this license and the Software, to deal in the Software
 *     without restriction, including without limitation the rights to use,
 *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 *     of the Software, and to permit persons to whom the Software is furnished
 *     to do so, subject to the following conditions:
 *
 *     The above copyright notice and this permission notice shall be included
 *     in all copies or substantial portions of the Software.
 *
 *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
 *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
 *     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.
 */

#ifndef __XGBE_COMMON_H__
#define __XGBE_COMMON_H__

/* DMA register offsets */
#define DMA_MR				0x3000
#define DMA_SBMR			0x3004
#define DMA_ISR				0x3008
#define DMA_AXIARCR			0x3010
#define DMA_AXIAWCR			0x3018
#define DMA_DSR0			0x3020
#define DMA_DSR1			0x3024

/* DMA register entry bit positions and sizes */
#define DMA_AXIARCR_DRC_INDEX		0
#define DMA_AXIARCR_DRC_WIDTH		4
#define DMA_AXIARCR_DRD_INDEX		4
#define DMA_AXIARCR_DRD_WIDTH		2
#define DMA_AXIARCR_TEC_INDEX		8
#define DMA_AXIARCR_TEC_WIDTH		4
#define DMA_AXIARCR_TED_INDEX		12
#define DMA_AXIARCR_TED_WIDTH		2
#define DMA_AXIARCR_THC_INDEX		16
#define DMA_AXIARCR_THC_WIDTH		4
#define DMA_AXIARCR_THD_INDEX		20
#define DMA_AXIARCR_THD_WIDTH		2
#define DMA_AXIAWCR_DWC_INDEX		0
#define DMA_AXIAWCR_DWC_WIDTH		4
#define DMA_AXIAWCR_DWD_INDEX		4
#define DMA_AXIAWCR_DWD_WIDTH		2
#define DMA_AXIAWCR_RPC_INDEX		8
#define DMA_AXIAWCR_RPC_WIDTH		4
#define DMA_AXIAWCR_RPD_INDEX		12
#define DMA_AXIAWCR_RPD_WIDTH		2
#define DMA_AXIAWCR_RHC_INDEX		16
#define DMA_AXIAWCR_RHC_WIDTH		4
#define DMA_AXIAWCR_RHD_INDEX		20
#define DMA_AXIAWCR_RHD_WIDTH		2
#define DMA_AXIAWCR_TDC_INDEX		24
#define DMA_AXIAWCR_TDC_WIDTH		4
#define DMA_AXIAWCR_TDD_INDEX		28
#define DMA_AXIAWCR_TDD_WIDTH		2
#define DMA_ISR_MACIS_INDEX		17
#define DMA_ISR_MACIS_WIDTH		1
#define DMA_ISR_MTLIS_INDEX		16
#define DMA_ISR_MTLIS_WIDTH		1
#define DMA_MR_SWR_INDEX		0
#define DMA_MR_SWR_WIDTH		1
#define DMA_SBMR_EAME_INDEX		11
#define DMA_SBMR_EAME_WIDTH		1
#define DMA_SBMR_BLEN_256_INDEX		7
#define DMA_SBMR_BLEN_256_WIDTH		1
#define DMA_SBMR_UNDEF_INDEX		0
#define DMA_SBMR_UNDEF_WIDTH		1

/* DMA register values */
#define DMA_DSR_RPS_WIDTH		4
#define DMA_DSR_TPS_WIDTH		4
#define DMA_DSR_Q_WIDTH			(DMA_DSR_RPS_WIDTH + DMA_DSR_TPS_WIDTH)
#define DMA_DSR0_RPS_START		8
#define DMA_DSR0_TPS_START		12
#define DMA_DSRX_FIRST_QUEUE		3
#define DMA_DSRX_INC			4
#define DMA_DSRX_QPR			4
#define DMA_DSRX_RPS_START		0
#define DMA_DSRX_TPS_START		4
#define DMA_TPS_STOPPED			0x00
#define DMA_TPS_SUSPENDED		0x06

/* DMA channel register offsets
 *   Multiple channels can be active.  The first channel has registers
 *   that begin at 0x3100.  Each subsequent channel has registers that
 *   are accessed using an offset of 0x80 from the previous channel.
 */
#define DMA_CH_BASE			0x3100
#define DMA_CH_INC			0x80

#define DMA_CH_CR			0x00
#define DMA_CH_TCR			0x04
#define DMA_CH_RCR			0x08
#define DMA_CH_TDLR_HI			0x10
#define DMA_CH_TDLR_LO			0x14
#define DMA_CH_RDLR_HI			0x18
#define DMA_CH_RDLR_LO			0x1c
#define DMA_CH_TDTR_LO			0x24
#define DMA_CH_RDTR_LO			0x2c
#define DMA_CH_TDRLR			0x30
#define DMA_CH_RDRLR			0x34
#define DMA_CH_IER			0x38
#define DMA_CH_RIWT			0x3c
#define DMA_CH_CATDR_LO			0x44
#define DMA_CH_CARDR_LO			0x4c
#define DMA_CH_CATBR_HI			0x50
#define DMA_CH_CATBR_LO			0x54
#define DMA_CH_CARBR_HI			0x58
#define DMA_CH_CARBR_LO			0x5c
#define DMA_CH_SR			0x60

/* DMA channel register entry bit positions and sizes */
#define DMA_CH_CR_PBLX8_INDEX		16
#define DMA_CH_CR_PBLX8_WIDTH		1
#define DMA_CH_CR_SPH_INDEX		24
#define DMA_CH_CR_SPH_WIDTH		1
#define DMA_CH_IER_AIE_INDEX		15
#define DMA_CH_IER_AIE_WIDTH		1
#define DMA_CH_IER_FBEE_INDEX		12
#define DMA_CH_IER_FBEE_WIDTH		1
#define DMA_CH_IER_NIE_INDEX		16
#define DMA_CH_IER_NIE_WIDTH		1
#define DMA_CH_IER_RBUE_INDEX		7
#define DMA_CH_IER_RBUE_WIDTH		1
#define DMA_CH_IER_RIE_INDEX		6
#define DMA_CH_IER_RIE_WIDTH		1
#define DMA_CH_IER_RSE_INDEX		8
#define DMA_CH_IER_RSE_WIDTH		1
#define DMA_CH_IER_TBUE_INDEX		2
#define DMA_CH_IER_TBUE_WIDTH		1
#define DMA_CH_IER_TIE_INDEX		0
#define DMA_CH_IER_TIE_WIDTH		1
#define DMA_CH_IER_TXSE_INDEX		1
#define DMA_CH_IER_TXSE_WIDTH		1
#define DMA_CH_RCR_PBL_INDEX		16
#define DMA_CH_RCR_PBL_WIDTH		6
#define DMA_CH_RCR_RBSZ_INDEX		1
#define DMA_CH_RCR_RBSZ_WIDTH		14
#define DMA_CH_RCR_SR_INDEX		0
#define DMA_CH_RCR_SR_WIDTH		1
#define DMA_CH_RIWT_RWT_INDEX		0
#define DMA_CH_RIWT_RWT_WIDTH		8
#define DMA_CH_SR_FBE_INDEX		12
#define DMA_CH_SR_FBE_WIDTH		1
#define DMA_CH_SR_RBU_INDEX		7
#define DMA_CH_SR_RBU_WIDTH		1
#define DMA_CH_SR_RI_INDEX		6
#define DMA_CH_SR_RI_WIDTH		1
#define DMA_CH_SR_RPS_INDEX		8
#define DMA_CH_SR_RPS_WIDTH		1
#define DMA_CH_SR_TBU_INDEX		2
#define DMA_CH_SR_TBU_WIDTH		1
#define DMA_CH_SR_TI_INDEX		0
#define DMA_CH_SR_TI_WIDTH		1
#define DMA_CH_SR_TPS_INDEX		1
#define DMA_CH_SR_TPS_WIDTH		1
#define DMA_CH_TCR_OSP_INDEX		4
#define DMA_CH_TCR_OSP_WIDTH		1
#define DMA_CH_TCR_PBL_INDEX		16
#define DMA_CH_TCR_PBL_WIDTH		6
#define DMA_CH_TCR_