diff options
Diffstat (limited to 'target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch')
| -rw-r--r-- | target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch b/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch new file mode 100644 index 0000000..4014539 --- /dev/null +++ b/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch @@ -0,0 +1,210 @@ +From 107ff718dad1c8f6abbf6247d6796a4535b71276 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 14 Dec 2015 23:50:53 +0100 +Subject: [PATCH 509/513] net-next: mediatek: add support for mt7621 + +Add support for SoCs from the mt7620 family. This include mt7620 and mt7621. +These all have one dedicated external gbit port and a builtin 5 port 100mbit +switch. Additionally one of the 5 switch ports can be changed to become an +additional gbit port that we can attach a phy to. This patch includes +rudimentary code to power up the switch. There are a lot of magic values +that get written to the switch and the internal phys. These values come +straight from the SDK driver. + +Signed-off-by: John Crispin <blogic@openwrt.org> +Signed-off-by: Felix Fietkau <nbd@openwrt.org> +Signed-off-by: Michael Lee <igvtee@gmail.com> +--- + drivers/net/ethernet/mediatek/soc_mt7621.c | 186 ++++++++++++++++++++++++++++ + 1 file changed, 186 insertions(+) + create mode 100644 drivers/net/ethernet/mediatek/soc_mt7621.c + +--- /dev/null ++++ b/drivers/net/ethernet/mediatek/soc_mt7621.c +@@ -0,0 +1,186 @@ ++/* 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@openwrt.org> ++ * 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 "mtk_eth_soc.h" ++#include "gsw_mt7620.h" ++#include "mt7530.h" ++#include "mdio.h" ++ ++#define MT7620A_CDMA_CSG_CFG 0x400 ++#define MT7621_CDMP_IG_CTRL (MT7620A_CDMA_CSG_CFG + 0x00) ++#define MT7621_CDMP_EG_CTRL (MT7620A_CDMA_CSG_CFG + 0x04) ++#define MT7621_RESET_FE BIT(6) ++#define MT7621_L4_VALID BIT(24) ++ ++#define MT7621_TX_DMA_UDF BIT(19) ++#define MT7621_TX_DMA_FPORT BIT(25) ++ ++#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 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 mt7621_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] = 0, ++ [FE_REG_FE_COUNTER_BASE] = MT7621_GDM1_TX_GBCNT, ++ [FE_REG_FE_RST_GL] = MT7621_FE_RST_GL, ++ [FE_REG_FE_INT_STATUS2] = MT7620_FE_INT_STATUS2, ++}; ++ ++static int mt7621_gsw_config(struct fe_priv *priv) ++{ ++ if (priv->mii_bus && priv->mii_bus->phy_map[0x1f]) ++ mt7530_probe(priv->device, NULL, priv->mii_bus, 1); ++ ++ return 0; ++} ++ ++static void mt7621_fe_reset(void) ++{ ++ fe_reset(MT7621_RESET_FE); ++} ++ ++static void mt7621_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 mt7621_rxvlan_config(bool enable) ++{ ++ if (enable) ++ fe_w32(1, MT7621_CDMP_EG_CTRL); ++ else ++ fe_w32(0, MT7621_CDMP_EG_CTRL); ++} ++ ++static int mt7621_fwd_config(struct fe_priv *priv) ++{ ++ struct net_device *dev = priv_netdev(priv); ++ ++ fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~0xffff, ++ MT7620A_GDMA1_FWD_CFG); ++ ++ /* mt7621 doesn't have txcsum config */ ++ mt7621_rxcsum_config((dev->features & NETIF_F_RXCSUM)); ++ mt7621_rxvlan_config((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && ++ (priv->flags & FE_FLAG_RX_VLAN_CTAG)); ++ ++ return 0; ++} ++ ++static void mt7621_tx_dma(struct fe_tx_dma *txd) ++{ ++ txd->txd4 = MT7621_TX_DMA_FPORT; ++} ++ ++static void mt7621_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_NAPI_WEIGHT | ++ FE_FLAG_HAS_SWITCH; ++ ++ netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM | ++ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_SG | NETIF_F_TSO | ++ NETIF_F_TSO6 | NETIF_F_IPV6_CSUM; ++} ++ ++static void mt7621_set_mac(struct fe_priv *priv, unsigned char *mac) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&priv->page_lock, flags); ++ fe_w32((mac[0] << 8) | mac[1], GSW_REG_GDMA1_MAC_ADRH); ++ fe_w32((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5], ++ GSW_REG_GDMA1_MAC_ADRL); ++ spin_unlock_irqrestore(&priv->page_lock, flags); ++} ++ ++static struct fe_soc_data mt7621_data = { ++ .init_data = mt7621_init_data, ++ .reset_fe = mt7621_fe_reset, ++ .set_mac = mt7621_set_mac, ++ .fwd_config = mt7621_fwd_config, ++ .tx_dma = mt7621_tx_dma, ++ .switch_init = mtk_gsw_init, ++ .switch_config = mt7621_gsw_config, ++ .reg_table = mt7621_reg_table, ++ .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS, ++ .rx_int = RT5350_RX_DONE_INT, ++ .tx_int = RT5350_TX_DONE_INT, ++ .status_int = (MT7621_FE_GDM1_AF | MT7621_FE_GDM2_AF), ++ .checksum_bit = MT7621_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,mt7621-eth", .data = &mt7621_data }, ++ {}, ++}; ++ ++MODULE_DEVICE_TABLE(of, of_fe_match); |