105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Applied Micro X-Gene SoC Ethernet v2 Driver
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*
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* Copyright (c) 2017, Applied Micro Circuits Corporation
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* Author(s): Iyappan Subramanian <isubramanian@apm.com>
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* Keyur Chudgar <kchudgar@apm.com>
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*/
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#include "main.h"
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void xge_mac_reset(struct xge_pdata *pdata)
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{
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xge_wr_csr(pdata, MAC_CONFIG_1, SOFT_RESET);
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xge_wr_csr(pdata, MAC_CONFIG_1, 0);
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}
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void xge_mac_set_speed(struct xge_pdata *pdata)
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{
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u32 icm0, icm2, ecm0, mc2;
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u32 intf_ctrl, rgmii;
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icm0 = xge_rd_csr(pdata, ICM_CONFIG0_REG_0);
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icm2 = xge_rd_csr(pdata, ICM_CONFIG2_REG_0);
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ecm0 = xge_rd_csr(pdata, ECM_CONFIG0_REG_0);
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rgmii = xge_rd_csr(pdata, RGMII_REG_0);
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mc2 = xge_rd_csr(pdata, MAC_CONFIG_2);
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intf_ctrl = xge_rd_csr(pdata, INTERFACE_CONTROL);
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icm2 |= CFG_WAITASYNCRD_EN;
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switch (pdata->phy_speed) {
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case SPEED_10:
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SET_REG_BITS(&mc2, INTF_MODE, 1);
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SET_REG_BITS(&intf_ctrl, HD_MODE, 0);
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SET_REG_BITS(&icm0, CFG_MACMODE, 0);
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SET_REG_BITS(&icm2, CFG_WAITASYNCRD, 500);
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SET_REG_BIT(&rgmii, CFG_SPEED_125, 0);
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break;
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case SPEED_100:
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SET_REG_BITS(&mc2, INTF_MODE, 1);
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SET_REG_BITS(&intf_ctrl, HD_MODE, 1);
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SET_REG_BITS(&icm0, CFG_MACMODE, 1);
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SET_REG_BITS(&icm2, CFG_WAITASYNCRD, 80);
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SET_REG_BIT(&rgmii, CFG_SPEED_125, 0);
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break;
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default:
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SET_REG_BITS(&mc2, INTF_MODE, 2);
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SET_REG_BITS(&intf_ctrl, HD_MODE, 2);
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SET_REG_BITS(&icm0, CFG_MACMODE, 2);
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SET_REG_BITS(&icm2, CFG_WAITASYNCRD, 16);
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SET_REG_BIT(&rgmii, CFG_SPEED_125, 1);
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break;
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}
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mc2 |= FULL_DUPLEX | CRC_EN | PAD_CRC;
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SET_REG_BITS(&ecm0, CFG_WFIFOFULLTHR, 0x32);
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xge_wr_csr(pdata, MAC_CONFIG_2, mc2);
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xge_wr_csr(pdata, INTERFACE_CONTROL, intf_ctrl);
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xge_wr_csr(pdata, RGMII_REG_0, rgmii);
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xge_wr_csr(pdata, ICM_CONFIG0_REG_0, icm0);
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xge_wr_csr(pdata, ICM_CONFIG2_REG_0, icm2);
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xge_wr_csr(pdata, ECM_CONFIG0_REG_0, ecm0);
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}
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void xge_mac_set_station_addr(struct xge_pdata *pdata)
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{
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const u8 *dev_addr = pdata->ndev->dev_addr;
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u32 addr0, addr1;
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addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
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(dev_addr[1] << 8) | dev_addr[0];
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addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
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xge_wr_csr(pdata, STATION_ADDR0, addr0);
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xge_wr_csr(pdata, STATION_ADDR1, addr1);
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}
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void xge_mac_init(struct xge_pdata *pdata)
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{
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xge_mac_reset(pdata);
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xge_mac_set_speed(pdata);
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xge_mac_set_station_addr(pdata);
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}
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void xge_mac_enable(struct xge_pdata *pdata)
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{
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u32 data;
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data = xge_rd_csr(pdata, MAC_CONFIG_1);
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data |= TX_EN | RX_EN;
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xge_wr_csr(pdata, MAC_CONFIG_1, data);
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data = xge_rd_csr(pdata, MAC_CONFIG_1);
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}
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void xge_mac_disable(struct xge_pdata *pdata)
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{
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u32 data;
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data = xge_rd_csr(pdata, MAC_CONFIG_1);
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data &= ~(TX_EN | RX_EN);
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xge_wr_csr(pdata, MAC_CONFIG_1, data);
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}
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