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249 lines
8.6 KiB
C
249 lines
8.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*
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* based on Ralink SDK3.3
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* Copyright (C) 2009 John Crispin <blogic@openwrt.org>
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*/
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#ifndef RAMIPS_ETH_H
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#define RAMIPS_ETH_H
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#include <linux/mii.h>
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#include <linux/interrupt.h>
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#include <linux/netdevice.h>
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#include <linux/dma-mapping.h>
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#define NUM_RX_DESC 256
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#define NUM_TX_DESC 256
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#define RAMIPS_DELAY_EN_INT 0x80
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#define RAMIPS_DELAY_MAX_INT 0x04
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#define RAMIPS_DELAY_MAX_TOUT 0x04
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#define RAMIPS_DELAY_CHAN (((RAMIPS_DELAY_EN_INT | RAMIPS_DELAY_MAX_INT) << 8) | RAMIPS_DELAY_MAX_TOUT)
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#define RAMIPS_DELAY_INIT ((RAMIPS_DELAY_CHAN << 16) | RAMIPS_DELAY_CHAN)
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#define RAMIPS_PSE_FQFC_CFG_INIT 0x80504000
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/* interrupt bits */
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#define RAMIPS_CNT_PPE_AF BIT(31)
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#define RAMIPS_CNT_GDM_AF BIT(29)
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#define RAMIPS_PSE_P2_FC BIT(26)
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#define RAMIPS_PSE_BUF_DROP BIT(24)
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#define RAMIPS_GDM_OTHER_DROP BIT(23)
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#define RAMIPS_PSE_P1_FC BIT(22)
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#define RAMIPS_PSE_P0_FC BIT(21)
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#define RAMIPS_PSE_FQ_EMPTY BIT(20)
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#define RAMIPS_GE1_STA_CHG BIT(18)
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#define RAMIPS_TX_COHERENT BIT(17)
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#define RAMIPS_RX_COHERENT BIT(16)
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#define RAMIPS_TX_DONE_INT3 BIT(11)
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#define RAMIPS_TX_DONE_INT2 BIT(10)
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#define RAMIPS_TX_DONE_INT1 BIT(9)
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#define RAMIPS_TX_DONE_INT0 BIT(8)
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#define RAMIPS_RX_DONE_INT0 BIT(2)
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#define RAMIPS_TX_DLY_INT BIT(1)
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#define RAMIPS_RX_DLY_INT BIT(0)
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/* registers */
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#define RAMIPS_FE_OFFSET 0x0000
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#define RAMIPS_GDMA_OFFSET 0x0020
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#define RAMIPS_PSE_OFFSET 0x0040
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#define RAMIPS_GDMA2_OFFSET 0x0060
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#define RAMIPS_CDMA_OFFSET 0x0080
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#define RAMIPS_PDMA_OFFSET 0x0100
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#define RAMIPS_PPE_OFFSET 0x0200
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#define RAMIPS_CMTABLE_OFFSET 0x0400
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#define RAMIPS_POLICYTABLE_OFFSET 0x1000
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#define RAMIPS_MDIO_ACCESS (RAMIPS_FE_OFFSET + 0x00)
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#define RAMIPS_MDIO_CFG (RAMIPS_FE_OFFSET + 0x04)
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#define RAMIPS_FE_GLO_CFG (RAMIPS_FE_OFFSET + 0x08)
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#define RAMIPS_FE_RST_GL (RAMIPS_FE_OFFSET + 0x0C)
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#define RAMIPS_FE_INT_STATUS (RAMIPS_FE_OFFSET + 0x10)
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#define RAMIPS_FE_INT_ENABLE (RAMIPS_FE_OFFSET + 0x14)
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#define RAMIPS_MDIO_CFG2 (RAMIPS_FE_OFFSET + 0x18)
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#define RAMIPS_FOC_TS_T (RAMIPS_FE_OFFSET + 0x1C)
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#define RAMIPS_GDMA1_FWD_CFG (RAMIPS_GDMA_OFFSET + 0x00)
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#define RAMIPS_GDMA1_SCH_CFG (RAMIPS_GDMA_OFFSET + 0x04)
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#define RAMIPS_GDMA1_SHPR_CFG (RAMIPS_GDMA_OFFSET + 0x08)
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#define RAMIPS_GDMA1_MAC_ADRL (RAMIPS_GDMA_OFFSET + 0x0C)
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#define RAMIPS_GDMA1_MAC_ADRH (RAMIPS_GDMA_OFFSET + 0x10)
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#define RAMIPS_GDMA2_FWD_CFG (RAMIPS_GDMA2_OFFSET + 0x00)
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#define RAMIPS_GDMA2_SCH_CFG (RAMIPS_GDMA2_OFFSET + 0x04)
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#define RAMIPS_GDMA2_SHPR_CFG (RAMIPS_GDMA2_OFFSET + 0x08)
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#define RAMIPS_GDMA2_MAC_ADRL (RAMIPS_GDMA2_OFFSET + 0x0C)
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#define RAMIPS_GDMA2_MAC_ADRH (RAMIPS_GDMA2_OFFSET + 0x10)
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#define RAMIPS_PSE_FQ_CFG (RAMIPS_PSE_OFFSET + 0x00)
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#define RAMIPS_CDMA_FC_CFG (RAMIPS_PSE_OFFSET + 0x04)
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#define RAMIPS_GDMA1_FC_CFG (RAMIPS_PSE_OFFSET + 0x08)
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#define RAMIPS_GDMA2_FC_CFG (RAMIPS_PSE_OFFSET + 0x0C)
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#define RAMIPS_CDMA_CSG_CFG (RAMIPS_CDMA_OFFSET + 0x00)
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#define RAMIPS_CDMA_SCH_CFG (RAMIPS_CDMA_OFFSET + 0x04)
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#define RAMIPS_PDMA_GLO_CFG (RAMIPS_PDMA_OFFSET + 0x00)
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#define RAMIPS_PDMA_RST_CFG (RAMIPS_PDMA_OFFSET + 0x04)
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#define RAMIPS_PDMA_SCH_CFG (RAMIPS_PDMA_OFFSET + 0x08)
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#define RAMIPS_DLY_INT_CFG (RAMIPS_PDMA_OFFSET + 0x0C)
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#define RAMIPS_TX_BASE_PTR0 (RAMIPS_PDMA_OFFSET + 0x10)
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#define RAMIPS_TX_MAX_CNT0 (RAMIPS_PDMA_OFFSET + 0x14)
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#define RAMIPS_TX_CTX_IDX0 (RAMIPS_PDMA_OFFSET + 0x18)
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#define RAMIPS_TX_DTX_IDX0 (RAMIPS_PDMA_OFFSET + 0x1C)
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#define RAMIPS_TX_BASE_PTR1 (RAMIPS_PDMA_OFFSET + 0x20)
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#define RAMIPS_TX_MAX_CNT1 (RAMIPS_PDMA_OFFSET + 0x24)
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#define RAMIPS_TX_CTX_IDX1 (RAMIPS_PDMA_OFFSET + 0x28)
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#define RAMIPS_TX_DTX_IDX1 (RAMIPS_PDMA_OFFSET + 0x2C)
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#define RAMIPS_RX_BASE_PTR0 (RAMIPS_PDMA_OFFSET + 0x30)
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#define RAMIPS_RX_MAX_CNT0 (RAMIPS_PDMA_OFFSET + 0x34)
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#define RAMIPS_RX_CALC_IDX0 (RAMIPS_PDMA_OFFSET + 0x38)
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#define RAMIPS_RX_DRX_IDX0 (RAMIPS_PDMA_OFFSET + 0x3C)
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#define RAMIPS_TX_BASE_PTR2 (RAMIPS_PDMA_OFFSET + 0x40)
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#define RAMIPS_TX_MAX_CNT2 (RAMIPS_PDMA_OFFSET + 0x44)
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#define RAMIPS_TX_CTX_IDX2 (RAMIPS_PDMA_OFFSET + 0x48)
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#define RAMIPS_TX_DTX_IDX2 (RAMIPS_PDMA_OFFSET + 0x4C)
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#define RAMIPS_TX_BASE_PTR3 (RAMIPS_PDMA_OFFSET + 0x50)
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#define RAMIPS_TX_MAX_CNT3 (RAMIPS_PDMA_OFFSET + 0x54)
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#define RAMIPS_TX_CTX_IDX3 (RAMIPS_PDMA_OFFSET + 0x58)
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#define RAMIPS_TX_DTX_IDX3 (RAMIPS_PDMA_OFFSET + 0x5C)
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#define RAMIPS_RX_BASE_PTR1 (RAMIPS_PDMA_OFFSET + 0x60)
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#define RAMIPS_RX_MAX_CNT1 (RAMIPS_PDMA_OFFSET + 0x64)
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#define RAMIPS_RX_CALC_IDX1 (RAMIPS_PDMA_OFFSET + 0x68)
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#define RAMIPS_RX_DRX_IDX1 (RAMIPS_PDMA_OFFSET + 0x6C)
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/* MDIO_CFG register bits */
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#define RAMIPS_MDIO_CFG_AUTO_POLL_EN BIT(29)
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#define RAMIPS_MDIO_CFG_GP1_BP_EN BIT(16)
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#define RAMIPS_MDIO_CFG_GP1_FRC_EN BIT(15)
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#define RAMIPS_MDIO_CFG_GP1_SPEED_10 (0 << 13)
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#define RAMIPS_MDIO_CFG_GP1_SPEED_100 (1 << 13)
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#define RAMIPS_MDIO_CFG_GP1_SPEED_1000 (2 << 13)
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#define RAMIPS_MDIO_CFG_GP1_DUPLEX BIT(12)
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#define RAMIPS_MDIO_CFG_GP1_FC_TX BIT(11)
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#define RAMIPS_MDIO_CFG_GP1_FC_RX BIT(10)
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#define RAMIPS_MDIO_CFG_GP1_LNK_DWN BIT(9)
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#define RAMIPS_MDIO_CFG_GP1_AN_FAIL BIT(8)
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#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_1 (0 << 6)
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#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_2 (1 << 6)
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#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_4 (2 << 6)
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#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_8 (3 << 6)
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#define RAMIPS_MDIO_CFG_TURBO_MII_FREQ BIT(5)
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#define RAMIPS_MDIO_CFG_TURBO_MII_MODE BIT(4)
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#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_0 (0 << 2)
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#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_200 (1 << 2)
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#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_400 (2 << 2)
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#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_INV (3 << 2)
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#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_0 0
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#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 1
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#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_400 2
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#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_INV 3
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/* uni-cast port */
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#define RAMIPS_GDM1_ICS_EN BIT(22)
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#define RAMIPS_GDM1_TCS_EN BIT(21)
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#define RAMIPS_GDM1_UCS_EN BIT(20)
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#define RAMIPS_GDM1_JMB_EN BIT(19)
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#define RAMIPS_GDM1_STRPCRC BIT(16)
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#define RAMIPS_GDM1_UFRC_P_CPU (0 << 12)
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#define RAMIPS_GDM1_UFRC_P_GDMA1 (1 << 12)
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#define RAMIPS_GDM1_UFRC_P_PPE (6 << 12)
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/* checksums */
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#define RAMIPS_ICS_GEN_EN BIT(2)
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#define RAMIPS_UCS_GEN_EN BIT(1)
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#define RAMIPS_TCS_GEN_EN BIT(0)
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/* dma ring */
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#define RAMIPS_PST_DRX_IDX0 BIT(16)
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#define RAMIPS_PST_DTX_IDX3 BIT(3)
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#define RAMIPS_PST_DTX_IDX2 BIT(2)
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#define RAMIPS_PST_DTX_IDX1 BIT(1)
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#define RAMIPS_PST_DTX_IDX0 BIT(0)
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#define RAMIPS_TX_WB_DDONE BIT(6)
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#define RAMIPS_RX_DMA_BUSY BIT(3)
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#define RAMIPS_TX_DMA_BUSY BIT(1)
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#define RAMIPS_RX_DMA_EN BIT(2)
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#define RAMIPS_TX_DMA_EN BIT(0)
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#define RAMIPS_PDMA_SIZE_4DWORDS (0 << 4)
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#define RAMIPS_PDMA_SIZE_8DWORDS (1 << 4)
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#define RAMIPS_PDMA_SIZE_16DWORDS (2 << 4)
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#define RAMIPS_US_CYC_CNT_MASK 0xff
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#define RAMIPS_US_CYC_CNT_SHIFT 0x8
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#define RAMIPS_US_CYC_CNT_DIVISOR 1000000
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#define RX_DMA_PLEN0(_x) (((_x) >> 16) & 0x3fff)
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#define RX_DMA_LSO BIT(30)
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#define RX_DMA_DONE BIT(31)
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struct ramips_rx_dma {
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unsigned int rxd1;
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unsigned int rxd2;
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unsigned int rxd3;
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unsigned int rxd4;
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} __packed __aligned(4);
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#define TX_DMA_PLEN0_MASK ((0x3fff) << 16)
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#define TX_DMA_PLEN0(_x) (((_x) & 0x3fff) << 16)
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#define TX_DMA_LSO BIT(30)
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#define TX_DMA_DONE BIT(31)
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#define TX_DMA_QN(_x) ((_x) << 16)
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#define TX_DMA_PN(_x) ((_x) << 24)
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#define TX_DMA_QN_MASK TX_DMA_QN(0x7)
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#define TX_DMA_PN_MASK TX_DMA_PN(0x7)
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struct ramips_tx_dma {
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unsigned int txd1;
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unsigned int txd2;
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unsigned int txd3;
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unsigned int txd4;
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} __packed __aligned(4);
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struct raeth_priv
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{
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dma_addr_t rx_desc_dma;
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struct tasklet_struct rx_tasklet;
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struct ramips_rx_dma *rx;
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struct sk_buff *rx_skb[NUM_RX_DESC];
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dma_addr_t rx_dma[NUM_RX_DESC];
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dma_addr_t tx_desc_dma;
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struct tasklet_struct tx_housekeeping_tasklet;
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struct ramips_tx_dma *tx;
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struct sk_buff *tx_skb[NUM_TX_DESC];
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unsigned int skb_free_idx;
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spinlock_t page_lock;
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struct net_device *netdev;
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struct device *parent;
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struct ramips_eth_platform_data *plat;
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int link;
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int speed;
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int duplex;
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int tx_fc;
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int rx_fc;
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struct mii_bus *mii_bus;
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int mii_irq[PHY_MAX_ADDR];
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struct phy_device *phy_dev;
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spinlock_t phy_lock;
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};
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#endif /* RAMIPS_ETH_H */
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