diff options
Diffstat (limited to 'target/linux/lantiq/patches-5.10/0028-NET-lantiq-various-etop-fixes.patch')
| -rw-r--r-- | target/linux/lantiq/patches-5.10/0028-NET-lantiq-various-etop-fixes.patch | 866 |
1 files changed, 866 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-5.10/0028-NET-lantiq-various-etop-fixes.patch b/target/linux/lantiq/patches-5.10/0028-NET-lantiq-various-etop-fixes.patch new file mode 100644 index 0000000000..094496a16d --- /dev/null +++ b/target/linux/lantiq/patches-5.10/0028-NET-lantiq-various-etop-fixes.patch @@ -0,0 +1,866 @@ +From 870ed9cae083ff8a60a739ef7e74c5a1800533be Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Tue, 9 Sep 2014 22:45:34 +0200 +Subject: [PATCH 28/36] NET: lantiq: various etop fixes + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/net/ethernet/lantiq_etop.c | 555 +++++++++++++++++++++++++----------- + 1 file changed, 389 insertions(+), 166 deletions(-) + +--- a/drivers/net/ethernet/lantiq_etop.c ++++ b/drivers/net/ethernet/lantiq_etop.c +@@ -1,7 +1,7 @@ + // SPDX-License-Identifier: GPL-2.0-only + /* + * +- * Copyright (C) 2011 John Crispin <blogic@openwrt.org> ++ * Copyright (C) 2011-12 John Crispin <blogic@openwrt.org> + */ + + #include <linux/kernel.h> +@@ -20,11 +20,16 @@ + #include <linux/mm.h> + #include <linux/platform_device.h> + #include <linux/ethtool.h> ++#include <linux/if_vlan.h> + #include <linux/init.h> + #include <linux/delay.h> + #include <linux/io.h> + #include <linux/dma-mapping.h> + #include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/of_net.h> ++#include <linux/of_irq.h> ++#include <linux/of_platform.h> + + #include <asm/checksum.h> + +@@ -32,7 +37,7 @@ + #include <xway_dma.h> + #include <lantiq_platform.h> + +-#define LTQ_ETOP_MDIO 0x11804 ++#define LTQ_ETOP_MDIO_ACC 0x11804 + #define MDIO_REQUEST 0x80000000 + #define MDIO_READ 0x40000000 + #define MDIO_ADDR_MASK 0x1f +@@ -41,44 +46,91 @@ + #define MDIO_REG_OFFSET 0x10 + #define MDIO_VAL_MASK 0xffff + +-#define PPE32_CGEN 0x800 +-#define LQ_PPE32_ENET_MAC_CFG 0x1840 ++#define LTQ_ETOP_MDIO_CFG 0x11800 ++#define MDIO_CFG_MASK 0x6 ++ ++#define LTQ_ETOP_CFG 0x11808 ++#define LTQ_ETOP_IGPLEN 0x11820 ++#define LTQ_ETOP_MAC_CFG 0x11840 + + #define LTQ_ETOP_ENETS0 0x11850 + #define LTQ_ETOP_MAC_DA0 0x1186C + #define LTQ_ETOP_MAC_DA1 0x11870 +-#define LTQ_ETOP_CFG 0x16020 +-#define LTQ_ETOP_IGPLEN 0x16080 ++ ++#define MAC_CFG_MASK 0xfff ++#define MAC_CFG_CGEN (1 << 11) ++#define MAC_CFG_DUPLEX (1 << 2) ++#define MAC_CFG_SPEED (1 << 1) ++#define MAC_CFG_LINK (1 << 0) + + #define MAX_DMA_CHAN 0x8 + #define MAX_DMA_CRC_LEN 0x4 + #define MAX_DMA_DATA_LEN 0x600 + + #define ETOP_FTCU BIT(28) +-#define ETOP_MII_MASK 0xf +-#define ETOP_MII_NORMAL 0xd +-#define ETOP_MII_REVERSE 0xe + #define ETOP_PLEN_UNDER 0x40 +-#define ETOP_CGEN 0x800 ++#define ETOP_CFG_MII0 0x01 + +-/* use 2 static channels for TX/RX */ +-#define LTQ_ETOP_TX_CHANNEL 1 +-#define LTQ_ETOP_RX_CHANNEL 6 +-#define IS_TX(x) (x == LTQ_ETOP_TX_CHANNEL) +-#define IS_RX(x) (x == LTQ_ETOP_RX_CHANNEL) ++#define ETOP_CFG_MASK 0xfff ++#define ETOP_CFG_FEN0 (1 << 8) ++#define ETOP_CFG_SEN0 (1 << 6) ++#define ETOP_CFG_OFF1 (1 << 3) ++#define ETOP_CFG_REMII0 (1 << 1) ++#define ETOP_CFG_OFF0 (1 << 0) ++ ++#define LTQ_GBIT_MDIO_CTL 0xCC ++#define LTQ_GBIT_MDIO_DATA 0xd0 ++#define LTQ_GBIT_GCTL0 0x68 ++#define LTQ_GBIT_PMAC_HD_CTL 0x8c ++#define LTQ_GBIT_P0_CTL 0x4 ++#define LTQ_GBIT_PMAC_RX_IPG 0xa8 ++#define LTQ_GBIT_RGMII_CTL 0x78 ++ ++#define PMAC_HD_CTL_AS (1 << 19) ++#define PMAC_HD_CTL_RXSH (1 << 22) ++ ++/* Switch Enable (0=disable, 1=enable) */ ++#define GCTL0_SE 0x80000000 ++/* Disable MDIO auto polling (0=disable, 1=enable) */ ++#define PX_CTL_DMDIO 0x00400000 ++ ++/* MDC clock divider, clock = 25MHz/((MDC_CLOCK + 1) * 2) */ ++#define MDC_CLOCK_MASK 0xff000000 ++#define MDC_CLOCK_OFFSET 24 ++ ++/* register information for the gbit's MDIO bus */ ++#define MDIO_XR9_REQUEST 0x00008000 ++#define MDIO_XR9_READ 0x00000800 ++#define MDIO_XR9_WRITE 0x00000400 ++#define MDIO_XR9_REG_MASK 0x1f ++#define MDIO_XR9_ADDR_MASK 0x1f ++#define MDIO_XR9_RD_MASK 0xffff ++#define MDIO_XR9_REG_OFFSET 0 ++#define MDIO_XR9_ADDR_OFFSET 5 ++#define MDIO_XR9_WR_OFFSET 16 + ++#define LTQ_DMA_ETOP ((of_machine_is_compatible("lantiq,ase")) ? \ ++ (INT_NUM_IM3_IRL0) : (INT_NUM_IM2_IRL0)) ++ ++/* the newer xway socks have a embedded 3/7 port gbit multiplexer */ + #define ltq_etop_r32(x) ltq_r32(ltq_etop_membase + (x)) + #define ltq_etop_w32(x, y) ltq_w32(x, ltq_etop_membase + (y)) + #define ltq_etop_w32_mask(x, y, z) \ + ltq_w32_mask(x, y, ltq_etop_membase + (z)) + +-#define DRV_VERSION "1.0" ++#define ltq_gbit_r32(x) ltq_r32(ltq_gbit_membase + (x)) ++#define ltq_gbit_w32(x, y) ltq_w32(x, ltq_gbit_membase + (y)) ++#define ltq_gbit_w32_mask(x, y, z) \ ++ ltq_w32_mask(x, y, ltq_gbit_membase + (z)) ++ ++#define DRV_VERSION "1.2" + + static void __iomem *ltq_etop_membase; ++static void __iomem *ltq_gbit_membase; + + struct ltq_etop_chan { +- int idx; + int tx_free; ++ int irq; + struct net_device *netdev; + struct napi_struct napi; + struct ltq_dma_channel dma; +@@ -88,23 +140,36 @@ struct ltq_etop_chan { + struct ltq_etop_priv { + struct net_device *netdev; + struct platform_device *pdev; +- struct ltq_eth_data *pldata; + struct resource *res; + + struct mii_bus *mii_bus; + +- struct ltq_etop_chan ch[MAX_DMA_CHAN]; +- int tx_free[MAX_DMA_CHAN >> 1]; ++ struct ltq_etop_chan txch; ++ struct ltq_etop_chan rxch; + +- spinlock_t lock; ++ int tx_irq; ++ int rx_irq; ++ ++ unsigned char mac[6]; ++ int mii_mode; ++ ++ spinlock_t lock; ++ ++ struct clk *clk_ppe; ++ struct clk *clk_switch; ++ struct clk *clk_ephy; ++ struct clk *clk_ephycgu; + }; + ++static int ltq_etop_mdio_wr(struct mii_bus *bus, int phy_addr, ++ int phy_reg, u16 phy_data); ++ + static int + ltq_etop_alloc_skb(struct ltq_etop_chan *ch) + { + struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + +- ch->skb[ch->dma.desc] = netdev_alloc_skb(ch->netdev, MAX_DMA_DATA_LEN); ++ ch->skb[ch->dma.desc] = dev_alloc_skb(MAX_DMA_DATA_LEN); + if (!ch->skb[ch->dma.desc]) + return -ENOMEM; + ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(&priv->pdev->dev, +@@ -139,8 +204,11 @@ ltq_etop_hw_receive(struct ltq_etop_chan + spin_unlock_irqrestore(&priv->lock, flags); + + skb_put(skb, len); ++ skb->dev = ch->netdev; + skb->protocol = eth_type_trans(skb, ch->netdev); + netif_receive_skb(skb); ++ ch->netdev->stats.rx_packets++; ++ ch->netdev->stats.rx_bytes += len; + } + + static int +@@ -148,7 +216,9 @@ ltq_etop_poll_rx(struct napi_struct *nap + { + struct ltq_etop_chan *ch = container_of(napi, + struct ltq_etop_chan, napi); ++ struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + int work_done = 0; ++ unsigned long flags; + + while (work_done < budget) { + struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; +@@ -160,7 +230,9 @@ ltq_etop_poll_rx(struct napi_struct *nap + } + if (work_done < budget) { + napi_complete_done(&ch->napi, work_done); ++ spin_lock_irqsave(&priv->lock, flags); + ltq_dma_ack_irq(&ch->dma); ++ spin_unlock_irqrestore(&priv->lock, flags); + } + return work_done; + } +@@ -172,12 +244,14 @@ ltq_etop_poll_tx(struct napi_struct *nap + container_of(napi, struct ltq_etop_chan, napi); + struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + struct netdev_queue *txq = +- netdev_get_tx_queue(ch->netdev, ch->idx >> 1); ++ netdev_get_tx_queue(ch->netdev, ch->dma.nr >> 1); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + while ((ch->dma.desc_base[ch->tx_free].ctl & + (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) { ++ ch->netdev->stats.tx_packets++; ++ ch->netdev->stats.tx_bytes += ch->skb[ch->tx_free]->len; + dev_kfree_skb_any(ch->skb[ch->tx_free]); + ch->skb[ch->tx_free] = NULL; + memset(&ch->dma.desc_base[ch->tx_free], 0, +@@ -190,7 +264,9 @@ ltq_etop_poll_tx(struct napi_struct *nap + if (netif_tx_queue_stopped(txq)) + netif_tx_start_queue(txq); + napi_complete(&ch->napi); ++ spin_lock_irqsave(&priv->lock, flags); + ltq_dma_ack_irq(&ch->dma); ++ spin_unlock_irqrestore(&priv->lock, flags); + return 1; + } + +@@ -198,9 +274,10 @@ static irqreturn_t + ltq_etop_dma_irq(int irq, void *_priv) + { + struct ltq_etop_priv *priv = _priv; +- int ch = irq - LTQ_DMA_CH0_INT; +- +- napi_schedule(&priv->ch[ch].napi); ++ if (irq == priv->txch.dma.irq) ++ napi_schedule(&priv->txch.napi); ++ else ++ napi_schedule(&priv->rxch.napi); + return IRQ_HANDLED; + } + +@@ -212,7 +289,7 @@ ltq_etop_free_channel(struct net_device + ltq_dma_free(&ch->dma); + if (ch->dma.irq) + free_irq(ch->dma.irq, priv); +- if (IS_RX(ch->idx)) { ++ if (ch == &priv->txch) { + int desc; + for (desc = 0; desc < LTQ_DESC_NUM; desc++) + dev_kfree_skb_any(ch->skb[ch->dma.desc]); +@@ -223,66 +300,135 @@ static void + ltq_etop_hw_exit(struct net_device *dev) + { + struct ltq_etop_priv *priv = netdev_priv(dev); +- int i; + +- ltq_pmu_disable(PMU_PPE); +- for (i = 0; i < MAX_DMA_CHAN; i++) +- if (IS_TX(i) || IS_RX(i)) +- ltq_etop_free_channel(dev, &priv->ch[i]); ++ clk_disable(priv->clk_ppe); ++ ++ if (of_machine_is_compatible("lantiq,ar9")) ++ clk_disable(priv->clk_switch); ++ ++ if (of_machine_is_compatible("lantiq,ase")) { ++ clk_disable(priv->clk_ephy); ++ clk_disable(priv->clk_ephycgu); ++ } ++ ++ ltq_etop_free_channel(dev, &priv->txch); ++ ltq_etop_free_channel(dev, &priv->rxch); ++} ++ ++static void ++ltq_etop_gbit_init(struct net_device *dev) ++{ ++ struct ltq_etop_priv *priv = netdev_priv(dev); ++ ++ clk_enable(priv->clk_switch); ++ ++ /* enable gbit port0 on the SoC */ ++ ltq_gbit_w32_mask((1 << 17), (1 << 18), LTQ_GBIT_P0_CTL); ++ ++ ltq_gbit_w32_mask(0, GCTL0_SE, LTQ_GBIT_GCTL0); ++ /* disable MDIO auto polling mode */ ++ ltq_gbit_w32_mask(0, PX_CTL_DMDIO, LTQ_GBIT_P0_CTL); ++ /* set 1522 packet size */ ++ ltq_gbit_w32_mask(0x300, 0, LTQ_GBIT_GCTL0); ++ /* disable pmac & dmac headers */ ++ ltq_gbit_w32_mask(PMAC_HD_CTL_AS | PMAC_HD_CTL_RXSH, 0, ++ LTQ_GBIT_PMAC_HD_CTL); ++ /* Due to traffic halt when burst length 8, ++ replace default IPG value with 0x3B */ ++ ltq_gbit_w32(0x3B, LTQ_GBIT_PMAC_RX_IPG); ++ /* set mdc clock to 2.5 MHz */ ++ ltq_gbit_w32_mask(MDC_CLOCK_MASK, 4 << MDC_CLOCK_OFFSET, ++ LTQ_GBIT_RGMII_CTL); + } + + static int + ltq_etop_hw_init(struct net_device *dev) + { + struct ltq_etop_priv *priv = netdev_priv(dev); +- int i; ++ int mii_mode = priv->mii_mode; + +- ltq_pmu_enable(PMU_PPE); ++ clk_enable(priv->clk_ppe); + +- switch (priv->pldata->mii_mode) { ++ if (of_machine_is_compatible("lantiq,ar9")) { ++ ltq_etop_gbit_init(dev); ++ /* force the etops link to the gbit to MII */ ++ mii_mode = PHY_INTERFACE_MODE_MII; ++ } ++ ltq_etop_w32_mask(MDIO_CFG_MASK, 0, LTQ_ETOP_MDIO_CFG); ++ ltq_etop_w32_mask(MAC_CFG_MASK, MAC_CFG_CGEN | MAC_CFG_DUPLEX | ++ MAC_CFG_SPEED | MAC_CFG_LINK, LTQ_ETOP_MAC_CFG); ++ ++ switch (mii_mode) { + case PHY_INTERFACE_MODE_RMII: +- ltq_etop_w32_mask(ETOP_MII_MASK, +- ETOP_MII_REVERSE, LTQ_ETOP_CFG); ++ ltq_etop_w32_mask(ETOP_CFG_MASK, ETOP_CFG_REMII0 | ETOP_CFG_OFF1 | ++ ETOP_CFG_SEN0 | ETOP_CFG_FEN0, LTQ_ETOP_CFG); + break; + + case PHY_INTERFACE_MODE_MII: +- ltq_etop_w32_mask(ETOP_MII_MASK, +- ETOP_MII_NORMAL, LTQ_ETOP_CFG); ++ ltq_etop_w32_mask(ETOP_CFG_MASK, ETOP_CFG_OFF1 | ++ ETOP_CFG_SEN0 | ETOP_CFG_FEN0, LTQ_ETOP_CFG); + break; + + default: ++ if (of_machine_is_compatible("lantiq,ase")) { ++ clk_enable(priv->clk_ephy); ++ /* disable external MII */ ++ ltq_etop_w32_mask(0, ETOP_CFG_MII0, LTQ_ETOP_CFG); ++ /* enable clock for internal PHY */ ++ clk_enable(priv->clk_ephycgu); ++ /* we need to write this magic to the internal phy to ++ make it work */ ++ ltq_etop_mdio_wr(NULL, 0x8, 0x12, 0xC020); ++ pr_info("Selected EPHY mode\n"); ++ break; ++ } + netdev_err(dev, "unknown mii mode %d\n", +- priv->pldata->mii_mode); ++ mii_mode); + return -ENOTSUPP; + } + +- /* enable crc generation */ +- ltq_etop_w32(PPE32_CGEN, LQ_PPE32_ENET_MAC_CFG); ++ return 0; ++} ++ ++static int ++ltq_etop_dma_init(struct net_device *dev) ++{ ++ struct ltq_etop_priv *priv = netdev_priv(dev); ++ int tx = priv->tx_irq - LTQ_DMA_ETOP; ++ int rx = priv->rx_irq - LTQ_DMA_ETOP; ++ int err; + + ltq_dma_init_port(DMA_PORT_ETOP); + +- for (i = 0; i < MAX_DMA_CHAN; i++) { +- int irq = LTQ_DMA_CH0_INT + i; +- struct ltq_etop_chan *ch = &priv->ch[i]; +- +- ch->idx = ch->dma.nr = i; +- ch->dma.dev = &priv->pdev->dev; +- +- if (IS_TX(i)) { +- ltq_dma_alloc_tx(&ch->dma); +- request_irq(irq, ltq_etop_dma_irq, 0, "etop_tx", priv); +- } else if (IS_RX(i)) { +- ltq_dma_alloc_rx(&ch->dma); +- for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM; +- ch->dma.desc++) +- if (ltq_etop_alloc_skb(ch)) +- return -ENOMEM; +- ch->dma.desc = 0; +- request_irq(irq, ltq_etop_dma_irq, 0, "etop_rx", priv); ++ priv->txch.dma.nr = tx; ++ priv->txch.dma.dev = &priv->pdev->dev; ++ ltq_dma_alloc_tx(&priv->txch.dma); ++ err = request_irq(priv->tx_irq, ltq_etop_dma_irq, 0, "eth_tx", priv); ++ if (err) { ++ netdev_err(dev, "failed to allocate tx irq\n"); ++ goto err_out; ++ } ++ priv->txch.dma.irq = priv->tx_irq; ++ ++ priv->rxch.dma.nr = rx; ++ priv->rxch.dma.dev = &priv->pdev->dev; ++ ltq_dma_alloc_rx(&priv->rxch.dma); ++ for (priv->rxch.dma.desc = 0; priv->rxch.dma.desc < LTQ_DESC_NUM; ++ priv->rxch.dma.desc++) { ++ if (ltq_etop_alloc_skb(&priv->rxch)) { ++ netdev_err(dev, "failed to allocate skbs\n"); ++ err = -ENOMEM; ++ goto err_out; + } +- ch->dma.irq = irq; + } +- return 0; ++ priv->rxch.dma.desc = 0; ++ err = request_irq(priv->rx_irq, ltq_etop_dma_irq, 0, "eth_rx", priv); ++ if (err) ++ netdev_err(dev, "failed to allocate rx irq\n"); ++ else ++ priv->rxch.dma.irq = priv->rx_irq; ++err_out: ++ return err; + } + + static void +@@ -301,6 +447,39 @@ static const struct ethtool_ops ltq_etop + }; + + static int ++ltq_etop_mdio_wr_xr9(struct mii_bus *bus, int phy_addr, ++ int phy_reg, u16 phy_data) ++{ ++ u32 val = MDIO_XR9_REQUEST | MDIO_XR9_WRITE | ++ (phy_data << MDIO_XR9_WR_OFFSET) | ++ ((phy_addr & MDIO_XR9_ADDR_MASK) << MDIO_XR9_ADDR_OFFSET) | ++ ((phy_reg & MDIO_XR9_REG_MASK) << MDIO_XR9_REG_OFFSET); ++ ++ while (ltq_gbit_r32(LTQ_GBIT_MDIO_CTL) & MDIO_XR9_REQUEST) ++ ; ++ ltq_gbit_w32(val, LTQ_GBIT_MDIO_CTL); ++ while (ltq_gbit_r32(LTQ_GBIT_MDIO_CTL) & MDIO_XR9_REQUEST) ++ ; ++ return 0; ++} ++ ++static int ++ltq_etop_mdio_rd_xr9(struct mii_bus *bus, int phy_addr, int phy_reg) ++{ ++ u32 val = MDIO_XR9_REQUEST | MDIO_XR9_READ | ++ ((phy_addr & MDIO_XR9_ADDR_MASK) << MDIO_XR9_ADDR_OFFSET) | ++ ((phy_reg & MDIO_XR9_REG_MASK) << MDIO_XR9_REG_OFFSET); ++ ++ while (ltq_gbit_r32(LTQ_GBIT_MDIO_CTL) & MDIO_XR9_REQUEST) ++ ; ++ ltq_gbit_w32(val, LTQ_GBIT_MDIO_CTL); ++ while (ltq_gbit_r32(LTQ_GBIT_MDIO_CTL) & MDIO_XR9_REQUEST) ++ ; ++ val = ltq_gbit_r32(LTQ_GBIT_MDIO_DATA) & MDIO_XR9_RD_MASK; ++ return val; ++} ++ ++static int + ltq_etop_mdio_wr(struct mii_bus *bus, int phy_addr, int phy_reg, u16 phy_data) + { + u32 val = MDIO_REQUEST | +@@ -308,9 +487,9 @@ ltq_etop_mdio_wr(struct mii_bus *bus, in + ((phy_reg & MDIO_REG_MASK) << MDIO_REG_OFFSET) | + phy_data; + +- while (ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_REQUEST) ++ while (ltq_etop_r32(LTQ_ETOP_MDIO_ACC) & MDIO_REQUEST) + ; +- ltq_etop_w32(val, LTQ_ETOP_MDIO); ++ ltq_etop_w32(val, LTQ_ETOP_MDIO_ACC); + return 0; + } + +@@ -321,12 +500,12 @@ ltq_etop_mdio_rd(struct mii_bus *bus, in + ((phy_addr & MDIO_ADDR_MASK) << MDIO_ADDR_OFFSET) | + ((phy_reg & MDIO_REG_MASK) << MDIO_REG_OFFSET); + +- while (ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_REQUEST) ++ while (ltq_etop_r32(LTQ_ETOP_MDIO_ACC) & MDIO_REQUEST) + ; +- ltq_etop_w32(val, LTQ_ETOP_MDIO); +- while (ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_REQUEST) ++ ltq_etop_w32(val, LTQ_ETOP_MDIO_ACC); ++ while (ltq_etop_r32(LTQ_ETOP_MDIO_ACC) & MDIO_REQUEST) + ; +- val = ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_VAL_MASK; ++ val = ltq_etop_r32(LTQ_ETOP_MDIO_ACC) & MDIO_VAL_MASK; + return val; + } + +@@ -342,7 +521,10 @@ ltq_etop_mdio_probe(struct net_device *d + struct ltq_etop_priv *priv = netdev_priv(dev); + struct phy_device *phydev; + +- phydev = phy_find_first(priv->mii_bus); ++ if (of_machine_is_compatible("lantiq,ase")) ++ phydev = mdiobus_get_phy(priv->mii_bus, 8); ++ else ++ phydev = mdiobus_get_phy(priv->mii_bus, 0); + + if (!phydev) { + netdev_err(dev, "no PHY found\n"); +@@ -350,14 +532,17 @@ ltq_etop_mdio_probe(struct net_device *d + } + + phydev = phy_connect(dev, phydev_name(phydev), +- <q_etop_mdio_link, priv->pldata->mii_mode); ++ <q_etop_mdio_link, priv->mii_mode); + + if (IS_ERR(phydev)) { + netdev_err(dev, "Could not attach to PHY\n"); + return PTR_ERR(phydev); + } + +- phy_set_max_speed(phydev, SPEED_100); ++ if (of_machine_is_compatible("lantiq,ar9")) ++ phy_set_max_speed(phydev, SPEED_1000); ++ else ++ phy_set_max_speed(phydev, SPEED_100); + + phy_attached_info(phydev); + +@@ -378,8 +563,13 @@ ltq_etop_mdio_init(struct net_device *de + } + + priv->mii_bus->priv = dev; +- priv->mii_bus->read = ltq_etop_mdio_rd; +- priv->mii_bus->write = ltq_etop_mdio_wr; ++ if (of_machine_is_compatible("lantiq,ar9")) { ++ priv->mii_bus->read = ltq_etop_mdio_rd_xr9; ++ priv->mii_bus->write = ltq_etop_mdio_wr_xr9; ++ } else { ++ priv->mii_bus->read = ltq_etop_mdio_rd; ++ priv->mii_bus->write = ltq_etop_mdio_wr; ++ } + priv->mii_bus->name = "ltq_mii"; + snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", + priv->pdev->name, priv->pdev->id); +@@ -416,18 +606,21 @@ static int + ltq_etop_open(struct net_device *dev) + { + struct ltq_etop_priv *priv = netdev_priv(dev); +- int i; ++ unsigned long flags; + +- for (i = 0; i < MAX_DMA_CHAN; i++) { +- struct ltq_etop_chan *ch = &priv->ch[i]; ++ napi_enable(&priv->txch.napi); ++ napi_enable(&priv->rxch.napi); ++ ++ spin_lock_irqsave(&priv->lock, flags); ++ ltq_dma_open(&priv->txch.dma); ++ ltq_dma_enable_irq(&priv->txch.dma); ++ ltq_dma_open(&priv->rxch.dma); ++ ltq_dma_enable_irq(&priv->rxch.dma); ++ spin_unlock_irqrestore(&priv->lock, flags); ++ ++ if (dev->phydev) ++ phy_start(dev->phydev); + +- if (!IS_TX(i) && (!IS_RX(i))) +- continue; +- ltq_dma_open(&ch->dma); +- ltq_dma_enable_irq(&ch->dma); +- napi_enable(&ch->napi); +- } +- phy_start(dev->phydev); + netif_tx_start_all_queues(dev); + return 0; + } +@@ -436,18 +629,19 @@ static int + ltq_etop_stop(struct net_device *dev) + { + struct ltq_etop_priv *priv = netdev_priv(dev); +- int i; ++ unsigned long flags; + + netif_tx_stop_all_queues(dev); +- phy_stop(dev->phydev); +- for (i = 0; i < MAX_DMA_CHAN; i++) { +- struct ltq_etop_chan *ch = &priv->ch[i]; +- +- if (!IS_RX(i) && !IS_TX(i)) +- continue; +- napi_disable(&ch->napi); +- ltq_dma_close(&ch->dma); +- } ++ if (dev->phydev) ++ phy_stop(dev->phydev); ++ napi_disable(&priv->txch.napi); ++ napi_disable(&priv->rxch.napi); ++ ++ spin_lock_irqsave(&priv->lock, flags); ++ ltq_dma_close(&priv->txch.dma); ++ ltq_dma_close(&priv->rxch.dma); ++ spin_unlock_irqrestore(&priv->lock, flags); ++ + return 0; + } + +@@ -457,16 +651,16 @@ ltq_etop_tx(struct sk_buff *skb, struct + int queue = skb_get_queue_mapping(skb); + struct netdev_queue *txq = netdev_get_tx_queue(dev, queue); + struct ltq_etop_priv *priv = netdev_priv(dev); +- struct ltq_etop_chan *ch = &priv->ch[(queue << 1) | 1]; +- struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; +- int len; ++ struct ltq_dma_desc *desc = ++ &priv->txch.dma.desc_base[priv->txch.dma.desc]; + unsigned long flags; + u32 byte_offset; ++ int len; + + len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; + +- if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) { +- dev_kfree_skb_any(skb); ++ if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ++ priv->txch.skb[priv->txch.dma.desc]) { + netdev_err(dev, "tx ring full\n"); + netif_tx_stop_queue(txq); + return NETDEV_TX_BUSY; +@@ -474,7 +668,7 @@ ltq_etop_tx(struct sk_buff *skb, struct + + /* dma needs to start on a 16 byte aligned address */ + byte_offset = CPHYSADDR(skb->data) % 16; +- ch->skb[ch->dma.desc] = skb; ++ priv->txch.skb[priv->txch.dma.desc] = skb; + + netif_trans_update(dev); + +@@ -484,11 +678,11 @@ ltq_etop_tx(struct sk_buff *skb, struct + wmb(); + desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP | + LTQ_DMA_TX_OFFSET(byte_offset) | (len & LTQ_DMA_SIZE_MASK); +- ch->dma.desc++; +- ch->dma.desc %= LTQ_DESC_NUM; ++ priv->txch.dma.desc++; ++ priv->txch.dma.desc %= LTQ_DESC_NUM; + spin_unlock_irqrestore(&priv->lock, flags); + +- if (ch->dma.desc_base[ch->dma.desc].ctl & LTQ_DMA_OWN) ++ if (priv->txch.dma.desc_base[priv->txch.dma.desc].ctl & LTQ_DMA_OWN) + netif_tx_stop_queue(txq); + + return NETDEV_TX_OK; +@@ -499,11 +693,14 @@ ltq_etop_change_mtu(struct net_device *d + { + struct ltq_etop_priv *priv = netdev_priv(dev); + unsigned long flags; ++ int max; + + dev->mtu = new_mtu; + ++ max = ETH_HLEN + VLAN_HLEN + new_mtu + ETH_FCS_LEN; ++ + spin_lock_irqsave(&priv->lock, flags); +- ltq_etop_w32((ETOP_PLEN_UNDER << 16) | new_mtu, LTQ_ETOP_IGPLEN); ++ ltq_etop_w32((ETOP_PLEN_UNDER << 16) | max, LTQ_ETOP_IGPLEN); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +@@ -563,6 +760,9 @@ ltq_etop_init(struct net_device *dev) + if (err) + goto err_hw; + ltq_etop_change_mtu(dev, 1500); ++ err = ltq_etop_dma_init(dev); ++ if (err) ++ goto err_hw; + + memcpy(&mac, &priv->pldata->mac, sizeof(struct sockaddr)); + if (!is_valid_ether_addr(mac.sa_data)) { +@@ -580,9 +780,10 @@ ltq_etop_init(struct net_device *dev) + dev->addr_assign_type = NET_ADDR_RANDOM; + + ltq_etop_set_multicast_list(dev); +- err = ltq_etop_mdio_init(dev); +- if (err) +- goto err_netdev; ++ if (!ltq_etop_mdio_init(dev)) ++ dev->ethtool_ops = <q_etop_ethtool_ops; ++ else ++ pr_warn("etop: mdio probe failed\n");; + return 0; + + err_netdev: +@@ -602,6 +803,9 @@ ltq_etop_tx_timeout(struct net_device *d + err = ltq_etop_hw_init(dev); + if (err) + goto err_hw; ++ err = ltq_etop_dma_init(dev); ++ if (err) ++ goto err_hw; + netif_trans_update(dev); + netif_wake_queue(dev); + return; +@@ -625,14 +829,19 @@ static const struct net_device_ops ltq_e + .ndo_tx_timeout = ltq_etop_tx_timeout, + }; + +-static int __init +-ltq_etop_probe(struct platform_device *pdev) ++static int ltq_etop_probe(struct platform_device *pdev) + { + struct net_device *dev; + struct ltq_etop_priv *priv; +- struct resource *res; ++ struct resource *res, *gbit_res, irqres[2]; ++ const u8 *mac; + int err; +- int i; ++ ++ err = of_irq_to_resource_table(pdev->dev.of_node, irqres, 2); ++ if (err != 2) { ++ dev_err(&pdev->dev, "failed to get etop irqs\n"); ++ return -EINVAL; ++ } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { +@@ -658,31 +867,62 @@ ltq_etop_probe(struct platform_device *p + goto err_out; + } + +- dev = alloc_etherdev_mq(sizeof(struct ltq_etop_priv), 4); +- if (!dev) { +- err = -ENOMEM; +- goto err_out; ++ if (of_machine_is_compatible("lantiq,ar9")) { ++ gbit_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); ++ if (!gbit_res) { ++ dev_err(&pdev->dev, "failed to get gbit resource\n"); ++ err = -ENOENT; ++ goto err_out; ++ } ++ ltq_gbit_membase = devm_ioremap_nocache(&pdev->dev, ++ gbit_res->start, resource_size(gbit_res)); ++ if (!ltq_gbit_membase) { ++ dev_err(&pdev->dev, "failed to remap gigabit switch %d\n", ++ pdev->id); ++ err = -ENOMEM; ++ goto err_out; ++ } + } ++ ++ dev = alloc_etherdev_mq(sizeof(struct ltq_etop_priv), 4); + strcpy(dev->name, "eth%d"); + dev->netdev_ops = <q_eth_netdev_ops; +- dev->ethtool_ops = <q_etop_ethtool_ops; + priv = netdev_priv(dev); + priv->res = res; + priv->pdev = pdev; +- priv->pldata = dev_get_platdata(&pdev->dev); + priv->netdev = dev; ++ priv->tx_irq = irqres[0].start; ++ priv->rx_irq = irqres[1].start; ++ priv->mii_mode = of_get_phy_mode(pdev->dev.of_node); ++ ++ mac = of_get_mac_address(pdev->dev.of_node); ++ if (mac) ++ memcpy(priv->mac, mac, ETH_ALEN); ++ ++ priv->clk_ppe = clk_get(&pdev->dev, NULL); ++ if (IS_ERR(priv->clk_ppe)) ++ return PTR_ERR(priv->clk_ppe); ++ if (of_machine_is_compatible("lantiq,ar9")) { ++ priv->clk_switch = clk_get(&pdev->dev, "switch"); ++ if (IS_ERR(priv->clk_switch)) ++ return PTR_ERR(priv->clk_switch); ++ } ++ if (of_machine_is_compatible("lantiq,ase")) { ++ priv->clk_ephy = clk_get(&pdev->dev, "ephy"); ++ if (IS_ERR(priv->clk_ephy)) ++ return PTR_ERR(priv->clk_ephy); ++ priv->clk_ephycgu = clk_get(&pdev->dev, "ephycgu"); ++ if (IS_ERR(priv->clk_ephycgu)) ++ return PTR_ERR(priv->clk_ephycgu); ++ } ++ + spin_lock_init(&priv->lock); + SET_NETDEV_DEV(dev, &pdev->dev); + +- for (i = 0; i < MAX_DMA_CHAN; i++) { +- if (IS_TX(i)) +- netif_napi_add(dev, &priv->ch[i].napi, +- ltq_etop_poll_tx, 8); +- else if (IS_RX(i)) +- netif_napi_add(dev, &priv->ch[i].napi, +- ltq_etop_poll_rx, 32); +- priv->ch[i].netdev = dev; +- } ++ netif_napi_add(dev, &priv->txch.napi, ltq_etop_poll_tx, 8); ++ netif_napi_add(dev, &priv->rxch.napi, ltq_etop_poll_rx, 32); ++ priv->txch.netdev = dev; ++ priv->rxch.netdev = dev; + + err = register_netdev(dev); + if (err) +@@ -711,31 +951,22 @@ ltq_etop_remove(struct platform_device * + return 0; + } + ++static const struct of_device_id ltq_etop_match[] = { ++ { .compatible = "lantiq,etop-xway" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, ltq_etop_match); ++ + static struct platform_driver ltq_mii_driver = { ++ .probe = ltq_etop_probe, + .remove = ltq_etop_remove, + .driver = { + .name = "ltq_etop", ++ .of_match_table = ltq_etop_match, + }, + }; + +-int __init +-init_ltq_etop(void) +-{ +- int ret = platform_driver_probe(<q_mii_driver, ltq_etop_probe); +- +- if (ret) +- pr_err("ltq_etop: Error registering platform driver!"); +- return ret; +-} +- +-static void __exit +-exit_ltq_etop(void) +-{ +- platform_driver_unregister(<q_mii_driver); +-} +- +-module_init(init_ltq_etop); +-module_exit(exit_ltq_etop); ++module_platform_driver(ltq_mii_driver); + + MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); + MODULE_DESCRIPTION("Lantiq SoC ETOP"); |