diff options
Diffstat (limited to 'target/linux/lantiq/patches-4.4/0028-NET-lantiq-various-etop-fixes.patch')
| -rw-r--r-- | target/linux/lantiq/patches-4.4/0028-NET-lantiq-various-etop-fixes.patch | 911 |
1 files changed, 0 insertions, 911 deletions
diff --git a/target/linux/lantiq/patches-4.4/0028-NET-lantiq-various-etop-fixes.patch b/target/linux/lantiq/patches-4.4/0028-NET-lantiq-various-etop-fixes.patch deleted file mode 100644 index 81eccf24bc..0000000000 --- a/target/linux/lantiq/patches-4.4/0028-NET-lantiq-various-etop-fixes.patch +++ /dev/null @@ -1,911 +0,0 @@ -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 -@@ -11,7 +11,7 @@ - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - * -- * Copyright (C) 2011 John Crispin <blogic@openwrt.org> -+ * Copyright (C) 2011-12 John Crispin <blogic@openwrt.org> - */ - - #include <linux/kernel.h> -@@ -30,11 +30,16 @@ - #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> - -@@ -42,7 +47,7 @@ - #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 -@@ -51,44 +56,91 @@ - #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; -@@ -98,22 +150,35 @@ 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 phy_device *phydev; - -- 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; -+ -+ 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) - { -- 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(NULL, -@@ -148,8 +213,11 @@ 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 -@@ -157,8 +225,10 @@ 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 rx = 0; - int complete = 0; -+ unsigned long flags; - - while ((rx < budget) && !complete) { - struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; -@@ -172,7 +242,9 @@ ltq_etop_poll_rx(struct napi_struct *nap - } - if (complete || !rx) { - napi_complete(&ch->napi); -+ spin_lock_irqsave(&priv->lock, flags); - ltq_dma_ack_irq(&ch->dma); -+ spin_unlock_irqrestore(&priv->lock, flags); - } - return rx; - } -@@ -184,12 +256,14 @@ 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, -@@ -202,7 +276,9 @@ 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; - } - -@@ -210,9 +286,10 @@ 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; - } - -@@ -224,7 +301,7 @@ 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]); -@@ -235,65 +312,133 @@ 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); -+ -+ 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 (priv->pldata->mii_mode) { -+ 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; -- -- 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; -+ 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; -+ 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 -@@ -309,7 +454,10 @@ ltq_etop_get_settings(struct net_device - { - struct ltq_etop_priv *priv = netdev_priv(dev); - -- return phy_ethtool_gset(priv->phydev, cmd); -+ if (priv->phydev) -+ return phy_ethtool_gset(priv->phydev, cmd); -+ else -+ return 0; - } - - static int -@@ -317,7 +465,10 @@ ltq_etop_set_settings(struct net_device - { - struct ltq_etop_priv *priv = netdev_priv(dev); - -- return phy_ethtool_sset(priv->phydev, cmd); -+ if (priv->phydev) -+ return phy_ethtool_sset(priv->phydev, cmd); -+ else -+ return 0; - } - - static int -@@ -325,7 +476,10 @@ ltq_etop_nway_reset(struct net_device *d - { - struct ltq_etop_priv *priv = netdev_priv(dev); - -- return phy_start_aneg(priv->phydev); -+ if (priv->phydev) -+ return phy_start_aneg(priv->phydev); -+ else -+ return 0; - } - - static const struct ethtool_ops ltq_etop_ethtool_ops = { -@@ -336,6 +490,39 @@ 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 | -@@ -343,9 +530,9 @@ 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; - } - -@@ -356,12 +543,12 @@ 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; - } - -@@ -376,14 +563,18 @@ ltq_etop_mdio_probe(struct net_device *d - { - struct ltq_etop_priv *priv = netdev_priv(dev); - struct phy_device *phydev = NULL; -- int phy_addr; -+ u32 phy_supported = (SUPPORTED_10baseT_Half -+ | SUPPORTED_10baseT_Full -+ | SUPPORTED_100baseT_Half -+ | SUPPORTED_100baseT_Full -+ | SUPPORTED_Autoneg -+ | SUPPORTED_MII -+ | SUPPORTED_TP); - -- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { -- if (priv->mii_bus->phy_map[phy_addr]) { -- phydev = priv->mii_bus->phy_map[phy_addr]; -- break; -- } -- } -+ if (of_machine_is_compatible("lantiq,ase")) -+ phydev = priv->mii_bus->phy_map[8]; -+ else -+ phydev = priv->mii_bus->phy_map[0]; - - if (!phydev) { - netdev_err(dev, "no PHY found\n"); -@@ -391,21 +582,18 @@ ltq_etop_mdio_probe(struct net_device *d - } - - phydev = phy_connect(dev, dev_name(&phydev->dev), -- <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); - } - -- phydev->supported &= (SUPPORTED_10baseT_Half -- | SUPPORTED_10baseT_Full -- | SUPPORTED_100baseT_Half -- | SUPPORTED_100baseT_Full -- | SUPPORTED_Autoneg -- | SUPPORTED_MII -- | SUPPORTED_TP); -+ if (of_machine_is_compatible("lantiq,ar9")) -+ phy_supported |= SUPPORTED_1000baseT_Half -+ | SUPPORTED_1000baseT_Full; - -+ phydev->supported &= phy_supported; - phydev->advertising = phydev->supported; - priv->phydev = phydev; - pr_info("%s: attached PHY [%s] (phy_addr=%s, irq=%d)\n", -@@ -430,8 +618,13 @@ 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); -@@ -480,17 +673,19 @@ 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_open(&priv->rxch.dma); -+ spin_unlock_irqrestore(&priv->lock, flags); -+ -+ if (priv->phydev) -+ phy_start(priv->phydev); - -- if (!IS_TX(i) && (!IS_RX(i))) -- continue; -- ltq_dma_open(&ch->dma); -- napi_enable(&ch->napi); -- } -- phy_start(priv->phydev); - netif_tx_start_all_queues(dev); - return 0; - } -@@ -499,18 +694,19 @@ 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(priv->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 (priv->phydev) -+ phy_stop(priv->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; - } - -@@ -520,16 +716,16 @@ 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; -@@ -537,7 +733,7 @@ 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; - - dev->trans_start = jiffies; - -@@ -547,11 +743,11 @@ 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; -@@ -566,8 +762,10 @@ ltq_etop_change_mtu(struct net_device *d - struct ltq_etop_priv *priv = netdev_priv(dev); - unsigned long flags; - -+ int 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_w32((ETOP_PLEN_UNDER << 16) | max, - LTQ_ETOP_IGPLEN); - spin_unlock_irqrestore(&priv->lock, flags); - } -@@ -638,6 +836,9 @@ 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)) { -@@ -655,9 +856,10 @@ 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: -@@ -677,6 +879,9 @@ 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; - dev->trans_start = jiffies; - netif_wake_queue(dev); - return; -@@ -700,14 +905,19 @@ 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) { -@@ -733,30 +943,61 @@ 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); - -- 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) -@@ -785,31 +1026,22 @@ 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"); |