+++ /dev/null
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License
- *
- * This program 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.
- *
- * Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
- * Copyright (C) 2009-2015 Felix Fietkau <nbd@nbd.name>
- * Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/if_vlan.h>
-#include <linux/of_net.h>
-
-#include <asm/mach-ralink/ralink_regs.h>
-
-#include <mt7620.h>
-#include "mtk_eth_soc.h"
-#include "gsw_mt7620.h"
-#include "mt7530.h"
-#include "mdio.h"
-
-#define MT7620A_CDMA_CSG_CFG 0x400
-#define MT7620_DMA_VID (MT7620A_CDMA_CSG_CFG | 0x30)
-#define MT7621_CDMP_IG_CTRL (MT7620A_CDMA_CSG_CFG + 0x00)
-#define MT7621_CDMP_EG_CTRL (MT7620A_CDMA_CSG_CFG + 0x04)
-#define MT7620A_RESET_FE BIT(21)
-#define MT7621_RESET_FE BIT(6)
-#define MT7620A_RESET_ESW BIT(23)
-#define MT7620_L4_VALID BIT(23)
-#define MT7621_L4_VALID BIT(24)
-
-#define MT7620_TX_DMA_UDF BIT(15)
-#define MT7621_TX_DMA_UDF BIT(19)
-#define TX_DMA_FP_BMAP ((0xff) << 19)
-
-#define CDMA_ICS_EN BIT(2)
-#define CDMA_UCS_EN BIT(1)
-#define CDMA_TCS_EN BIT(0)
-
-#define GDMA_ICS_EN BIT(22)
-#define GDMA_TCS_EN BIT(21)
-#define GDMA_UCS_EN BIT(20)
-
-/* frame engine counters */
-#define MT7620_REG_MIB_OFFSET 0x1000
-#define MT7620_PPE_AC_BCNT0 (MT7620_REG_MIB_OFFSET + 0x00)
-#define MT7620_GDM1_TX_GBCNT (MT7620_REG_MIB_OFFSET + 0x300)
-#define MT7620_GDM2_TX_GBCNT (MT7620_GDM1_TX_GBCNT + 0x40)
-
-#define MT7621_REG_MIB_OFFSET 0x2000
-#define MT7621_PPE_AC_BCNT0 (MT7621_REG_MIB_OFFSET + 0x00)
-#define MT7621_GDM1_TX_GBCNT (MT7621_REG_MIB_OFFSET + 0x400)
-#define MT7621_GDM2_TX_GBCNT (MT7621_GDM1_TX_GBCNT + 0x40)
-
-#define GSW_REG_GDMA1_MAC_ADRL 0x508
-#define GSW_REG_GDMA1_MAC_ADRH 0x50C
-
-#define MT7621_FE_RST_GL (FE_FE_OFFSET + 0x04)
-#define MT7620_FE_INT_STATUS2 (FE_FE_OFFSET + 0x08)
-
-/* FE_INT_STATUS reg on mt7620 define CNT_GDM1_AF at BIT(29)
- * but after test it should be BIT(13).
- */
-#define MT7620_FE_GDM1_AF BIT(13)
-#define MT7621_FE_GDM1_AF BIT(28)
-#define MT7621_FE_GDM2_AF BIT(29)
-
-static const u16 mt7620_reg_table[FE_REG_COUNT] = {
- [FE_REG_PDMA_GLO_CFG] = RT5350_PDMA_GLO_CFG,
- [FE_REG_PDMA_RST_CFG] = RT5350_PDMA_RST_CFG,
- [FE_REG_DLY_INT_CFG] = RT5350_DLY_INT_CFG,
- [FE_REG_TX_BASE_PTR0] = RT5350_TX_BASE_PTR0,
- [FE_REG_TX_MAX_CNT0] = RT5350_TX_MAX_CNT0,
- [FE_REG_TX_CTX_IDX0] = RT5350_TX_CTX_IDX0,
- [FE_REG_TX_DTX_IDX0] = RT5350_TX_DTX_IDX0,
- [FE_REG_RX_BASE_PTR0] = RT5350_RX_BASE_PTR0,
- [FE_REG_RX_MAX_CNT0] = RT5350_RX_MAX_CNT0,
- [FE_REG_RX_CALC_IDX0] = RT5350_RX_CALC_IDX0,
- [FE_REG_RX_DRX_IDX0] = RT5350_RX_DRX_IDX0,
- [FE_REG_FE_INT_ENABLE] = RT5350_FE_INT_ENABLE,
- [FE_REG_FE_INT_STATUS] = RT5350_FE_INT_STATUS,
- [FE_REG_FE_DMA_VID_BASE] = MT7620_DMA_VID,
- [FE_REG_FE_COUNTER_BASE] = MT7620_GDM1_TX_GBCNT,
- [FE_REG_FE_RST_GL] = MT7621_FE_RST_GL,
- [FE_REG_FE_INT_STATUS2] = MT7620_FE_INT_STATUS2,
-};
-
-static int mt7620_gsw_config(struct fe_priv *priv)
-{
- struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
-
- /* is the mt7530 internal or external */
- if (priv->mii_bus && mdiobus_get_phy(priv->mii_bus, 0x1f)) {
- mt7530_probe(priv->dev, gsw->base, NULL, 0);
- mt7530_probe(priv->dev, NULL, priv->mii_bus, 1);
- } else {
- mt7530_probe(priv->dev, gsw->base, NULL, 1);
- }
-
- return 0;
-}
-
-static void mt7620_set_mac(struct fe_priv *priv, unsigned char *mac)
-{
- struct mt7620_gsw *gsw = (struct mt7620_gsw *)priv->soc->swpriv;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->page_lock, flags);
- mtk_switch_w32(gsw, (mac[0] << 8) | mac[1], GSW_REG_SMACCR1);
- mtk_switch_w32(gsw, (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5],
- GSW_REG_SMACCR0);
- spin_unlock_irqrestore(&priv->page_lock, flags);
-}
-
-static void mt7620_auto_poll(struct mt7620_gsw *gsw, int port)
-{
- int phy;
- int lsb = -1, msb = 0;
-
- for_each_set_bit(phy, &gsw->autopoll, 32) {
- if (lsb < 0)
- lsb = phy;
- msb = phy;
- }
-
- if (lsb == msb && port == 4)
- msb++;
- else if (lsb == msb && port == 5)
- lsb--;
-
- mtk_switch_w32(gsw, PHY_AN_EN | PHY_PRE_EN | PMY_MDC_CONF(5) |
- (msb << 8) | lsb, ESW_PHY_POLLING);
-}
-
-static void mt7620_port_init(struct fe_priv *priv, struct device_node *np)
-{
- struct mt7620_gsw *gsw = (struct mt7620_gsw *)priv->soc->swpriv;
- const __be32 *_id = of_get_property(np, "reg", NULL);
- const __be32 *phy_addr;
- int phy_mode, size, id;
- int shift = 12;
- u32 val, mask = 0;
- u32 val_delay = 0;
- u32 mask_delay = GSW_REG_GPCx_TXDELAY | GSW_REG_GPCx_RXDELAY;
- int min = (gsw->port4 == PORT4_EPHY) ? (5) : (4);
-
- if (!_id || (be32_to_cpu(*_id) < min) || (be32_to_cpu(*_id) > 5)) {
- if (_id)
- pr_err("%s: invalid port id %d\n", np->name,
- be32_to_cpu(*_id));
- else
- pr_err("%s: invalid port id\n", np->name);
- return;
- }
-
- id = be32_to_cpu(*_id);
-
- if (id == 4)
- shift = 14;
-
- priv->phy->phy_fixed[id] = of_get_property(np, "mediatek,fixed-link",
- &size);
- if (priv->phy->phy_fixed[id] &&
- (size != (4 * sizeof(*priv->phy->phy_fixed[id])))) {
- pr_err("%s: invalid fixed link property\n", np->name);
- priv->phy->phy_fixed[id] = NULL;
- return;
- }
-
- phy_mode = of_get_phy_mode(np);
- switch (phy_mode) {
- case PHY_INTERFACE_MODE_RGMII:
- mask = 0;
- /* Do not touch rx/tx delay in this state to avoid problems with
- * backward compability.
- */
- mask_delay = 0;
- break;
- case PHY_INTERFACE_MODE_RGMII_ID:
- mask = 0;
- val_delay |= GSW_REG_GPCx_TXDELAY;
- val_delay &= ~GSW_REG_GPCx_RXDELAY;
- break;
- case PHY_INTERFACE_MODE_RGMII_RXID:
- mask = 0;
- val_delay &= ~GSW_REG_GPCx_TXDELAY;
- val_delay &= ~GSW_REG_GPCx_RXDELAY;
- break;
- case PHY_INTERFACE_MODE_RGMII_TXID:
- mask = 0;
- val_delay &= ~GSW_REG_GPCx_TXDELAY;
- val_delay |= GSW_REG_GPCx_RXDELAY;
- break;
- case PHY_INTERFACE_MODE_MII:
- mask = 1;
- break;
- case PHY_INTERFACE_MODE_RMII:
- mask = 2;
- break;
- default:
- dev_err(priv->dev, "port %d - invalid phy mode\n", id);
- return;
- }
-
- priv->phy->phy_node[id] = of_parse_phandle(np, "phy-handle", 0);
- if (!priv->phy->phy_node[id] && !priv->phy->phy_fixed[id])
- return;
-
- val = rt_sysc_r32(SYSC_REG_CFG1);
- val &= ~(3 << shift);
- val |= mask << shift;
- rt_sysc_w32(val, SYSC_REG_CFG1);
-
- if (id == 4) {
- val = mtk_switch_r32(gsw, GSW_REG_GPC2);
- val &= ~(mask_delay);
- val |= val_delay & mask_delay;
- mtk_switch_w32(gsw, val, GSW_REG_GPC2);
- }
- else if (id == 5) {
- val = mtk_switch_r32(gsw, GSW_REG_GPC1);
- val &= ~(mask_delay);
- val |= val_delay & mask_delay;
- mtk_switch_w32(gsw, val, GSW_REG_GPC1);
- }
-
- if (priv->phy->phy_fixed[id]) {
- const __be32 *link = priv->phy->phy_fixed[id];
- int tx_fc, rx_fc;
- u32 val = 0;
-
- priv->phy->speed[id] = be32_to_cpup(link++);
- tx_fc = be32_to_cpup(link++);
- rx_fc = be32_to_cpup(link++);
- priv->phy->duplex[id] = be32_to_cpup(link++);
- priv->link[id] = 1;
-
- switch (priv->phy->speed[id]) {
- case SPEED_10:
- val = 0;
- break;
- case SPEED_100:
- val = 1;
- break;
- case SPEED_1000:
- val = 2;
- break;
- default:
- dev_err(priv->dev, "invalid link speed: %d\n",
- priv->phy->speed[id]);
- priv->phy->phy_fixed[id] = 0;
- return;
- }
- val = PMCR_SPEED(val);
- val |= PMCR_LINK | PMCR_BACKPRES | PMCR_BACKOFF | PMCR_RX_EN |
- PMCR_TX_EN | PMCR_FORCE | PMCR_MAC_MODE | PMCR_IPG;
- if (tx_fc)
- val |= PMCR_TX_FC;
- if (rx_fc)
- val |= PMCR_RX_FC;
- if (priv->phy->duplex[id])
- val |= PMCR_DUPLEX;
- mtk_switch_w32(gsw, val, GSW_REG_PORT_PMCR(id));
- dev_info(priv->dev, "using fixed link parameters\n");
- return;
- }
-
- phy_addr = of_get_property(priv->phy->phy_node[id], "reg", NULL);
- if (phy_addr && mdiobus_get_phy(priv->mii_bus, be32_to_cpup(phy_addr))) {
- u32 val = PMCR_BACKPRES | PMCR_BACKOFF | PMCR_RX_EN |
- PMCR_TX_EN | PMCR_MAC_MODE | PMCR_IPG;
-
- mtk_switch_w32(gsw, val, GSW_REG_PORT_PMCR(id));
- fe_connect_phy_node(priv, priv->phy->phy_node[id], id);
- gsw->autopoll |= BIT(be32_to_cpup(phy_addr));
- mt7620_auto_poll(gsw,id);
- return;
- }
-}
-
-static void mt7620_fe_reset(void)
-{
- fe_reset(MT7620A_RESET_FE | MT7620A_RESET_ESW);
-}
-
-static void mt7620_rxcsum_config(bool enable)
-{
- if (enable)
- fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) | (GDMA_ICS_EN |
- GDMA_TCS_EN | GDMA_UCS_EN),
- MT7620A_GDMA1_FWD_CFG);
- else
- fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~(GDMA_ICS_EN |
- GDMA_TCS_EN | GDMA_UCS_EN),
- MT7620A_GDMA1_FWD_CFG);
-}
-
-static void mt7620_txcsum_config(bool enable)
-{
- if (enable)
- fe_w32(fe_r32(MT7620A_CDMA_CSG_CFG) | (CDMA_ICS_EN |
- CDMA_UCS_EN | CDMA_TCS_EN),
- MT7620A_CDMA_CSG_CFG);
- else
- fe_w32(fe_r32(MT7620A_CDMA_CSG_CFG) & ~(CDMA_ICS_EN |
- CDMA_UCS_EN | CDMA_TCS_EN),
- MT7620A_CDMA_CSG_CFG);
-}
-
-static int mt7620_fwd_config(struct fe_priv *priv)
-{
- struct net_device *dev = priv_netdev(priv);
-
- fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~7, MT7620A_GDMA1_FWD_CFG);
-
- mt7620_txcsum_config((dev->features & NETIF_F_IP_CSUM));
- mt7620_rxcsum_config((dev->features & NETIF_F_RXCSUM));
-
- return 0;
-}
-
-static void mt7620_tx_dma(struct fe_tx_dma *txd)
-{
-}
-
-static void mt7620_init_data(struct fe_soc_data *data,
- struct net_device *netdev)
-{
- struct fe_priv *priv = netdev_priv(netdev);
-
- priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_RX_2B_OFFSET |
- FE_FLAG_RX_SG_DMA | FE_FLAG_HAS_SWITCH;
-
- netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
- NETIF_F_HW_VLAN_CTAG_TX;
- if (mt7620_get_eco() >= 5)
- netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
- NETIF_F_IPV6_CSUM;
-}
-
-static struct fe_soc_data mt7620_data = {
- .init_data = mt7620_init_data,
- .reset_fe = mt7620_fe_reset,
- .set_mac = mt7620_set_mac,
- .fwd_config = mt7620_fwd_config,
- .tx_dma = mt7620_tx_dma,
- .switch_init = mtk_gsw_init,
- .switch_config = mt7620_gsw_config,
- .port_init = mt7620_port_init,
- .reg_table = mt7620_reg_table,
- .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS,
- .rx_int = RT5350_RX_DONE_INT,
- .tx_int = RT5350_TX_DONE_INT,
- .status_int = MT7620_FE_GDM1_AF,
- .checksum_bit = MT7620_L4_VALID,
- .has_carrier = mt7620_has_carrier,
- .mdio_read = mt7620_mdio_read,
- .mdio_write = mt7620_mdio_write,
- .mdio_adjust_link = mt7620_mdio_link_adjust,
-};
-
-const struct of_device_id of_fe_match[] = {
- { .compatible = "mediatek,mt7620-eth", .data = &mt7620_data },
- {},
-};
-
-MODULE_DEVICE_TABLE(of, of_fe_match);
projects / openwrt / staging / mkresin.git / blobdiff