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authorJohn Crispin <john@openwrt.org>2009-10-23 16:51:51 +0000
committerJohn Crispin <john@openwrt.org>2009-10-23 16:51:51 +0000
commitd95163658cacaad4935f361fb3257904c8df8e4f (patch)
tree43931bc85e59c7348b3fd6f25aef08a6086565c2 /target/linux
parent21367682e8ab9be4fda6b134c385e482b2ecf4d8 (diff)
downloadupstream-d95163658cacaad4935f361fb3257904c8df8e4f.tar.gz
upstream-d95163658cacaad4935f361fb3257904c8df8e4f.tar.bz2
upstream-d95163658cacaad4935f361fb3257904c8df8e4f.zip
adds ethernet driver, esw needs to be moved to swconfig, driver is missing rt288x support, not a platform device yet
SVN-Revision: 18128
Diffstat (limited to 'target/linux')
-rwxr-xr-xtarget/linux/ramips/base-files/etc/uci-defaults/network13
-rw-r--r--target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h204
-rw-r--r--target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h5
-rw-r--r--target/linux/ramips/files/drivers/net/ramips.c387
-rw-r--r--target/linux/ramips/files/drivers/net/ramips_esw.c119
-rw-r--r--target/linux/ramips/patches-2.6.30/104-watchdog.patch30
-rw-r--r--target/linux/ramips/rt305x/config-2.6.301
7 files changed, 757 insertions, 2 deletions
diff --git a/target/linux/ramips/base-files/etc/uci-defaults/network b/target/linux/ramips/base-files/etc/uci-defaults/network
new file mode 100755
index 0000000000..8d4c6d547d
--- /dev/null
+++ b/target/linux/ramips/base-files/etc/uci-defaults/network
@@ -0,0 +1,13 @@
+#!/bin/sh
+RT305X=`cat /proc/cpuinfo | grep RT305`
+[ -z "${RT305X}" ] || {
+ uci batch <<EOF
+set network.lan.ifname=eth0.1
+set network.wan=interface
+set network.wan.ifname=eth0.2
+set network.wan.proto=dhcp
+commit network
+EOF
+}
+
+uci commit network
diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h
new file mode 100644
index 0000000000..d468967884
--- /dev/null
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h
@@ -0,0 +1,204 @@
+/*
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * based on Ralink SDK3.3
+ * Copyright (C) 2009 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef RAMIPS_ETH_H
+#define RAMIPS_ETH_H
+
+#include <linux/mii.h>
+
+#define NUM_RX_DESC 256
+#define NUM_TX_DESC 256
+
+#define RAMIPS_DELAY_EN_INT 0x80
+#define RAMIPS_DELAY_MAX_INT 0x04
+#define RAMIPS_DELAY_MAX_TOUT 0x04
+#define RAMIPS_DELAY_CHAN (((RAMIPS_DELAY_EN_INT | RAMIPS_DELAY_MAX_INT) << 8) | RAMIPS_DELAY_MAX_TOUT)
+#define RAMIPS_DELAY_INIT ((RAMIPS_DELAY_CHAN << 16) | RAMIPS_DELAY_CHAN)
+#define RAMIPS_PSE_FQFC_CFG_INIT 0x80504000
+
+#define RAMIPS_FE_RESET 0x34
+#define RAMIPS_FE_RESET_BIT BIT(21)
+
+
+/* interrupt bitd */
+#define RAMIPS_CNT_PPE_AF BIT(31)
+#define RAMIPS_CNT_GDM_AF BIT(29)
+#define RAMIPS_PSE_P2_FC BIT(26)
+#define RAMIPS_PSE_BUF_DROP BIT(24)
+#define RAMIPS_GDM_OTHER_DROP BIT(23)
+#define RAMIPS_PSE_P1_FC BIT(22)
+#define RAMIPS_PSE_P0_FC BIT(21)
+#define RAMIPS_PSE_FQ_EMPTY BIT(20)
+#define RAMIPS_GE1_STA_CHG BIT(18)
+#define RAMIPS_TX_COHERENT BIT(17)
+#define RAMIPS_RX_COHERENT BIT(16)
+#define RAMIPS_TX_DONE_INT3 BIT(11)
+#define RAMIPS_TX_DONE_INT2 BIT(10)
+#define RAMIPS_TX_DONE_INT1 BIT(9)
+#define RAMIPS_TX_DONE_INT0 BIT(8)
+#define RAMIPS_RX_DONE_INT0 BIT(2)
+#define RAMIPS_TX_DLY_INT BIT(1)
+#define RAMIPS_RX_DLY_INT BIT(0)
+
+/* registers */
+#define RAMIPS_FE_OFFSET 0x0000
+#define RAMIPS_GDMA_OFFSET 0x0020
+#define RAMIPS_PSE_OFFSET 0x0040
+#define RAMIPS_GDMA2_OFFSET 0x0060
+#define RAMIPS_CDMA_OFFSET 0x0080
+#define RAMIPS_PDMA_OFFSET 0x0100
+#define RAMIPS_PPE_OFFSET 0x0200
+#define RAMIPS_CMTABLE_OFFSET 0x0400
+#define RAMIPS_POLICYTABLE_OFFSET 0x1000
+
+#define RAMIPS_MDIO_ACCESS (RAMIPS_FE_OFFSET + 0x00)
+#define RAMIPS_MDIO_CFG (RAMIPS_FE_OFFSET + 0x04)
+#define RAMIPS_FE_GLO_CFG (RAMIPS_FE_OFFSET + 0x08)
+#define RAMIPS_FE_RST_GL (RAMIPS_FE_OFFSET + 0x0C)
+#define RAMIPS_FE_INT_STATUS (RAMIPS_FE_OFFSET + 0x10)
+#define RAMIPS_FE_INT_ENABLE (RAMIPS_FE_OFFSET + 0x14)
+#define RAMIPS_MDIO_CFG2 (RAMIPS_FE_OFFSET + 0x18)
+#define RAMIPS_FOC_TS_T (RAMIPS_FE_OFFSET + 0x1C)
+
+#define RAMIPS_GDMA1_FWD_CFG (RAMIPS_GDMA_OFFSET + 0x00)
+#define RAMIPS_GDMA1_SCH_CFG (RAMIPS_GDMA_OFFSET + 0x04)
+#define RAMIPS_GDMA1_SHPR_CFG (RAMIPS_GDMA_OFFSET + 0x08)
+#define RAMIPS_GDMA1_MAC_ADRL (RAMIPS_GDMA_OFFSET + 0x0C)
+#define RAMIPS_GDMA1_MAC_ADRH (RAMIPS_GDMA_OFFSET + 0x10)
+
+#define RAMIPS_GDMA2_FWD_CFG (RAMIPS_GDMA2_OFFSET + 0x00)
+#define RAMIPS_GDMA2_SCH_CFG (RAMIPS_GDMA2_OFFSET + 0x04)
+#define RAMIPS_GDMA2_SHPR_CFG (RAMIPS_GDMA2_OFFSET + 0x08)
+#define RAMIPS_GDMA2_MAC_ADRL (RAMIPS_GDMA2_OFFSET + 0x0C)
+#define RAMIPS_GDMA2_MAC_ADRH (RAMIPS_GDMA2_OFFSET + 0x10)
+
+#define RAMIPS_PSE_FQ_CFG (RAMIPS_PSE_OFFSET + 0x00)
+#define RAMIPS_CDMA_FC_CFG (RAMIPS_PSE_OFFSET + 0x04)
+#define RAMIPS_GDMA1_FC_CFG (RAMIPS_PSE_OFFSET + 0x08)
+#define RAMIPS_GDMA2_FC_CFG (RAMIPS_PSE_OFFSET + 0x0C)
+
+#define RAMIPS_CDMA_CSG_CFG (RAMIPS_CDMA_OFFSET + 0x00)
+#define RAMIPS_CDMA_SCH_CFG (RAMIPS_CDMA_OFFSET + 0x04)
+
+#define RAMIPS_PDMA_GLO_CFG (RAMIPS_PDMA_OFFSET + 0x00)
+#define RAMIPS_PDMA_RST_CFG (RAMIPS_PDMA_OFFSET + 0x04)
+#define RAMIPS_PDMA_SCH_CFG (RAMIPS_PDMA_OFFSET + 0x08)
+#define RAMIPS_DLY_INT_CFG (RAMIPS_PDMA_OFFSET + 0x0C)
+#define RAMIPS_TX_BASE_PTR0 (RAMIPS_PDMA_OFFSET + 0x10)
+#define RAMIPS_TX_MAX_CNT0 (RAMIPS_PDMA_OFFSET + 0x14)
+#define RAMIPS_TX_CTX_IDX0 (RAMIPS_PDMA_OFFSET + 0x18)
+#define RAMIPS_TX_DTX_IDX0 (RAMIPS_PDMA_OFFSET + 0x1C)
+#define RAMIPS_TX_BASE_PTR1 (RAMIPS_PDMA_OFFSET + 0x20)
+#define RAMIPS_TX_MAX_CNT1 (RAMIPS_PDMA_OFFSET + 0x24)
+#define RAMIPS_TX_CTX_IDX1 (RAMIPS_PDMA_OFFSET + 0x28)
+#define RAMIPS_TX_DTX_IDX1 (RAMIPS_PDMA_OFFSET + 0x2C)
+#define RAMIPS_TX_BASE_PTR2 (RAMIPS_PDMA_OFFSET + 0x40)
+#define RAMIPS_TX_MAX_CNT2 (RAMIPS_PDMA_OFFSET + 0x44)
+#define RAMIPS_TX_CTX_IDX2 (RAMIPS_PDMA_OFFSET + 0x48)
+#define RAMIPS_TX_DTX_IDX2 (RAMIPS_PDMA_OFFSET + 0x4C)
+#define RAMIPS_TX_BASE_PTR3 (RAMIPS_PDMA_OFFSET + 0x50)
+#define RAMIPS_TX_MAX_CNT3 (RAMIPS_PDMA_OFFSET + 0x54)
+#define RAMIPS_TX_CTX_IDX3 (RAMIPS_PDMA_OFFSET + 0x58)
+#define RAMIPS_TX_DTX_IDX3 (RAMIPS_PDMA_OFFSET + 0x5C)
+#define RAMIPS_RX_BASE_PTR0 (RAMIPS_PDMA_OFFSET + 0x30)
+#define RAMIPS_RX_MAX_CNT0 (RAMIPS_PDMA_OFFSET + 0x34)
+#define RAMIPS_RX_CALC_IDX0 (RAMIPS_PDMA_OFFSET + 0x38)
+#define RAMIPS_RX_DRX_IDX0 (RAMIPS_PDMA_OFFSET + 0x3C)
+#define RAMIPS_RX_BASE_PTR1 (RAMIPS_PDMA_OFFSET + 0x40)
+#define RAMIPS_RX_MAX_CNT1 (RAMIPS_PDMA_OFFSET + 0x44)
+#define RAMIPS_RX_CALC_IDX1 (RAMIPS_PDMA_OFFSET + 0x48)
+#define RAMIPS_RX_DRX_IDX1 (RAMIPS_PDMA_OFFSET + 0x4C)
+
+/* uni-cast port */
+#define RAMIPS_GDM1_ICS_EN (0x1 << 22)
+#define RAMIPS_GDM1_TCS_EN (0x1 << 21)
+#define RAMIPS_GDM1_UCS_EN (0x1 << 20)
+#define RAMIPS_GDM1_JMB_EN (0x1 << 19)
+#define RAMIPS_GDM1_STRPCRC (0x1 << 16)
+#define RAMIPS_GDM1_UFRC_P_CPU (0 << 12)
+#define RAMIPS_GDM1_UFRC_P_GDMA1 (1 << 12)
+#define RAMIPS_GDM1_UFRC_P_PPE (6 << 12)
+
+/* checksums */
+#define RAMIPS_ICS_GEN_EN BIT(2)
+#define RAMIPS_UCS_GEN_EN BIT(1)
+#define RAMIPS_TCS_GEN_EN BIT(0)
+
+/* dma rimg */
+#define RAMIPS_PST_DRX_IDX0 BIT(16)
+#define RAMIPS_PST_DTX_IDX3 BIT(3)
+#define RAMIPS_PST_DTX_IDX2 BIT(2)
+#define RAMIPS_PST_DTX_IDX1 BIT(1)
+#define RAMIPS_PST_DTX_IDX0 BIT(0)
+
+#define RAMIPS_TX_WB_DDONE BIT(6)
+#define RAMIPS_RX_DMA_BUSY BIT(3)
+#define RAMIPS_TX_DMA_BUSY BIT(1)
+#define RAMIPS_RX_DMA_EN BIT(2)
+#define RAMIPS_TX_DMA_EN BIT(0)
+
+#define RAMIPS_PDMA_SIZE_4DWORDS (0<<4)
+#define RAMIPS_PDMA_SIZE_8DWORDS (1<<4)
+#define RAMIPS_PDMA_SIZE_16DWORDS (2<<4)
+
+#define RAMIPS_US_CYC_CNT_MASK 0xff
+#define RAMIPS_US_CYC_CNT_SHIFT 0x8
+#define RAMIPS_US_CYC_CNT_DIVISOR 1000000
+
+
+#define RX_DMA_PLEN0(x) ((x >> 16) & 0x3fff)
+#define RX_DMA_LSO BIT(30)
+#define RX_DMA_DONE BIT(31)
+struct ramips_rx_dma {
+ unsigned int rxd1;
+ unsigned int rxd2;
+ unsigned int rxd3;
+ unsigned int rxd4;
+};
+
+#define TX_DMA_PLEN0_MASK ((0x3fff) << 16)
+#define TX_DMA_PLEN0(x) ((x & 0x3fff) << 16)
+#define TX_DMA_LSO BIT(30)
+#define TX_DMA_DONE BIT(31)
+#define TX_DMA_QN(x) (x << 16)
+#define TX_DMA_PN(x) (x << 24)
+#define TX_DMA_QN_MASK TX_DMA_QN(0x7)
+#define TX_DMA_PN_MASK TX_DMA_PN(0x7)
+struct ramips_tx_dma {
+ unsigned int txd1;
+ unsigned int txd2;
+ unsigned int txd3;
+ unsigned int txd4;
+};
+
+struct raeth_priv
+{
+ unsigned int phy_rx;
+ struct tasklet_struct rx_tasklet;
+ struct ramips_rx_dma *rx;
+
+ unsigned int phy_tx;
+ struct tasklet_struct tx_housekeeping_tasklet;
+ struct ramips_tx_dma *tx;
+
+ unsigned int skb_free_idx;
+ struct net_device_stats stat;
+};
+
+#endif
diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h
index 7f0666d5b1..a17962d5aa 100644
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h
@@ -14,7 +14,7 @@
#include <linux/bitops.h>
#define RT305X_SDRAM_BASE 0x00000000
-#define RT305X_SYSC_BASE 0x10000000
+#define RT305X_SYSC_BASE 0x10000000
#define RT305X_TIMER_BASE 0x10000100
#define RT305X_INTC_BASE 0x10000200
#define RT305X_MEMC_BASE 0x10000300
@@ -26,7 +26,7 @@
#define RT305X_I2S_BASE 0x10000a00
#define RT305X_SPI_BASE 0x10000b00
#define RT305X_UART1_BASE 0x10000c00
-#define RT305X_FE_BASE 0x10010000
+#define RT305X_FE_BASE 0x10100000
#define RT305X_SWITCH_BASE 0x10110000
#define RT305X_WMAC_BASE 0x00180000
#define RT305X_OTG_BASE 0x101c0000
@@ -35,6 +35,7 @@
#define RT305X_FLASH0_BASE 0x1f000000
#define RT305X_SYSC_SIZE 0x100
+#define RT305X_TIMER_SIZE 0x100
#define RT305X_INTC_SIZE 0x100
#define RT305X_MEMC_SIZE 0x100
#define RT305X_UART0_SIZE 0x100
diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
new file mode 100644
index 0000000000..46def4051a
--- /dev/null
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -0,0 +1,387 @@
+/*
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) 2009 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/if_vlan.h>
+#include <linux/if_ether.h>
+#include <asm/uaccess.h>
+#include <net/sock.h>
+#include <asm/uaccess.h>
+
+#include <rt305x.h>
+#include <rt305x_regs.h>
+#include <eth.h>
+
+#define TX_TIMEOUT (20 * HZ / 100)
+#define MAX_RX_LENGTH 1500
+
+#ifdef CONFIG_RALINK_RT305X
+#include "ramips_esw.c"
+#endif
+
+static struct net_device * ramips_dev;
+static void __iomem *ramips_fe_base = 0;
+
+static inline void
+ramips_fe_wr(u32 val, unsigned reg)
+{
+ __raw_writel(val, ramips_fe_base + reg);
+}
+
+static inline u32
+ramips_fe_rr(unsigned reg)
+{
+ return __raw_readl(ramips_fe_base + reg);
+}
+
+static int
+ramips_alloc_dma(struct net_device *dev)
+{
+#define phys_to_bus(a) (a & 0x1FFFFFFF)
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+ int i;
+
+ priv->skb_free_idx = 0;
+
+ /* setup tx ring */
+ priv->tx = pci_alloc_consistent(NULL,
+ NUM_TX_DESC * sizeof(struct ramips_tx_dma), &priv->phy_tx);
+ for(i = 0; i < NUM_TX_DESC; i++)
+ {
+ memset(&priv->tx[i], 0, sizeof(struct ramips_tx_dma));
+ priv->tx[i].txd2 |= TX_DMA_LSO | TX_DMA_DONE;
+ priv->tx[i].txd4 &= (TX_DMA_QN_MASK | TX_DMA_PN_MASK);
+ priv->tx[i].txd4 |= TX_DMA_QN(3) | TX_DMA_PN(1);
+ }
+ ramips_fe_wr(phys_to_bus(priv->phy_tx), RAMIPS_TX_BASE_PTR0);
+ ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
+ ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
+ ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
+
+ /* setup rx ring */
+ priv->rx = pci_alloc_consistent(NULL,
+ NUM_RX_DESC * sizeof(struct ramips_rx_dma), &priv->phy_rx);
+ memset(priv->rx, 0, sizeof(struct ramips_rx_dma) * NUM_RX_DESC);
+ for(i = 0; i < NUM_RX_DESC; i++)
+ {
+ struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_LENGTH + 2);
+ BUG_ON(!new_skb);
+ skb_reserve(new_skb, 2);
+ priv->rx[i].rxd1 =
+ dma_map_single(NULL, skb_put(new_skb, 2), MAX_RX_LENGTH + 2,
+ PCI_DMA_FROMDEVICE);
+ priv->rx[i].rxd2 |= RX_DMA_LSO;
+ priv->rx[i].rxd3 = (unsigned int)new_skb;
+ }
+ dma_cache_wback_inv((unsigned long)priv->rx,
+ NUM_RX_DESC * (sizeof(struct ramips_rx_dma)));
+
+ ramips_fe_wr(phys_to_bus(priv->phy_rx), RAMIPS_RX_BASE_PTR0);
+ ramips_fe_wr(NUM_RX_DESC, RAMIPS_RX_MAX_CNT0);
+ ramips_fe_wr((NUM_RX_DESC - 1), RAMIPS_RX_CALC_IDX0);
+ ramips_fe_wr(RAMIPS_PST_DRX_IDX0, RAMIPS_PDMA_RST_CFG);
+
+ return 0;
+}
+
+static int
+ramips_eth_hard_start_xmit(struct sk_buff* skb, struct net_device *dev)
+{
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+ unsigned long tx;
+ unsigned int tx_next;
+
+#ifdef CONFIG_RALINK_RT305X
+#define MIN_PKT_LEN 64
+ if(skb->len < MIN_PKT_LEN)
+ {
+ if(skb_padto(skb, MIN_PKT_LEN))
+ {
+ printk(KERN_ERR "ramips_eth: skb_padto failed\n");
+ kfree_skb(skb);
+ return 0;
+ }
+ skb_put(skb, MIN_PKT_LEN - skb->len);
+ }
+#endif
+ dev->trans_start = jiffies;
+ dma_cache_wback_inv((unsigned long)skb->data, skb->len);
+ tx = ramips_fe_rr(RAMIPS_TX_CTX_IDX0);
+ if(tx == NUM_TX_DESC - 1)
+ tx_next = 0;
+ else
+ tx_next = tx + 1;
+ if((priv->tx[tx].txd3 == 0) && (priv->tx[tx_next].txd3 == 0))
+ {
+ if(!(priv->tx[tx].txd2 & TX_DMA_DONE))
+ {
+ kfree_skb(skb);
+ priv->stat.tx_dropped++;
+ printk(KERN_ERR "%s: dropping\n", dev->name);
+ return 0;
+ }
+ priv->tx[tx].txd1 = virt_to_phys(skb->data);
+ priv->tx[tx].txd2 &= ~(TX_DMA_PLEN0_MASK | TX_DMA_DONE);
+ priv->tx[tx].txd2 |= TX_DMA_PLEN0(skb->len);
+ ramips_fe_wr((tx + 1) % NUM_TX_DESC, RAMIPS_TX_CTX_IDX0);
+ priv->stat.tx_packets++;
+ priv->stat.tx_bytes += skb->len;
+ priv->tx[tx].txd3 = (unsigned int)skb;
+ ramips_fe_wr((tx + 1) % NUM_TX_DESC, RAMIPS_TX_CTX_IDX0);
+ } else {
+ priv->stat.tx_dropped++;
+ kfree_skb(skb);
+ }
+ return 0;
+}
+
+static void
+ramips_eth_rx_hw(unsigned long ptr)
+{
+ struct net_device *dev = (struct net_device*)ptr;
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+ int rx;
+ int max_rx = 16;
+
+ while(max_rx)
+ {
+ struct sk_buff *rx_skb, *new_skb;
+
+ rx = (ramips_fe_rr(RAMIPS_RX_CALC_IDX0) + 1) % NUM_RX_DESC;
+ if(!(priv->rx[rx].rxd2 & RX_DMA_DONE))
+ break;
+ max_rx--;
+
+ rx_skb = (struct sk_buff*)priv->rx[rx].rxd3;
+ rx_skb->len = RX_DMA_PLEN0(priv->rx[rx].rxd2);
+ rx_skb->tail = rx_skb->data + rx_skb->len;
+ rx_skb->dev = dev;
+ rx_skb->protocol = eth_type_trans(rx_skb, dev);
+ rx_skb->ip_summed = CHECKSUM_NONE;
+ priv->stat.rx_packets++;
+ priv->stat.rx_bytes += rx_skb->len;
+ netif_rx(rx_skb);
+
+ new_skb = __dev_alloc_skb(MAX_RX_LENGTH + 2, GFP_DMA | GFP_ATOMIC);
+ priv->rx[rx].rxd3 = (unsigned int)new_skb;
+ BUG_ON(!new_skb);
+ skb_reserve(new_skb, 2);
+ priv->rx[rx].rxd1 =
+ dma_map_single(NULL, new_skb->data, MAX_RX_LENGTH + 2,
+ PCI_DMA_FROMDEVICE);
+ priv->rx[rx].rxd2 &= ~RX_DMA_DONE;
+ dma_cache_wback_inv((unsigned long)&priv->rx[rx],
+ sizeof(struct ramips_rx_dma));
+ ramips_fe_wr(rx, RAMIPS_RX_CALC_IDX0);
+ }
+ if(max_rx == 0)
+ tasklet_schedule(&priv->rx_tasklet);
+ else
+ ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | RAMIPS_RX_DLY_INT,
+ RAMIPS_FE_INT_ENABLE);
+}
+
+static void
+ramips_eth_tx_housekeeping(unsigned long ptr)
+{
+ struct net_device *dev = (struct net_device*)ptr;
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+
+ while((priv->tx[priv->skb_free_idx].txd2 & TX_DMA_DONE) &&
+ (priv->tx[priv->skb_free_idx].txd3))
+ {
+ dev_kfree_skb_irq((struct sk_buff*)priv->tx[priv->skb_free_idx].txd3);
+ priv->tx[priv->skb_free_idx].txd3 = 0;
+ priv->skb_free_idx++;
+ if(priv->skb_free_idx >= NUM_TX_DESC)
+ priv->skb_free_idx = 0;
+ }
+ ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | RAMIPS_TX_DLY_INT,
+ RAMIPS_FE_INT_ENABLE);
+}
+
+static struct net_device_stats*
+ramips_eth_get_stats(struct net_device *dev)
+{
+ return &((struct raeth_priv*)netdev_priv(dev))->stat;
+}
+
+static int
+ramips_eth_set_mac_addr(struct net_device *dev, void *priv)
+{
+ unsigned char *mac = (unsigned char*)priv;
+
+ if(netif_running(dev))
+ return -EBUSY;
+ memcpy(dev->dev_addr, ((struct sockaddr*)priv)->sa_data, dev->addr_len);
+ ramips_fe_wr((mac[0] << 8) | mac[1], RAMIPS_GDMA1_MAC_ADRH);
+ ramips_fe_wr(RAMIPS_GDMA1_MAC_ADRL,
+ (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5]);
+ return 0;
+}
+
+static void
+ramips_eth_timeout(struct net_device *dev)
+{
+ tasklet_schedule(
+ &((struct raeth_priv*)netdev_priv(dev))->tx_housekeeping_tasklet);
+}
+
+static irqreturn_t
+ramips_eth_irq(int irq, void *dev)
+{
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+ unsigned long fe_int = ramips_fe_rr(RAMIPS_FE_INT_STATUS);
+
+ if(fe_int & RAMIPS_RX_DLY_INT)
+ {
+ ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) & ~(RAMIPS_RX_DLY_INT),
+ RAMIPS_FE_INT_ENABLE);
+ tasklet_schedule(&priv->rx_tasklet);
+ }
+ if(fe_int & RAMIPS_TX_DLY_INT)
+ tasklet_schedule(&priv->tx_housekeeping_tasklet);
+ ramips_fe_wr(0xFFFFFFFF, RAMIPS_FE_INT_STATUS);
+ return IRQ_HANDLED;
+}
+
+static int
+ramips_eth_open(struct net_device *dev)
+{
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+
+ ramips_alloc_dma(dev);
+ ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) |
+ (RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN |
+ RAMIPS_TX_DMA_EN | RAMIPS_PDMA_SIZE_4DWORDS),
+ RAMIPS_PDMA_GLO_CFG);
+ ramips_fe_wr((ramips_fe_rr(RAMIPS_FE_GLO_CFG) &
+ ~(RAMIPS_US_CYC_CNT_MASK << RAMIPS_US_CYC_CNT_SHIFT)) |
+ ((rt305x_sys_freq / RAMIPS_US_CYC_CNT_DIVISOR) << RAMIPS_US_CYC_CNT_SHIFT),
+ RAMIPS_FE_GLO_CFG);
+ request_irq(dev->irq, ramips_eth_irq, IRQF_DISABLED, dev->name, dev);
+ tasklet_init(&priv->tx_housekeeping_tasklet, ramips_eth_tx_housekeeping,
+ (unsigned long)dev);
+ tasklet_init(&priv->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev);
+ ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG);
+ ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE);
+ ramips_fe_wr(ramips_fe_rr(RAMIPS_GDMA1_FWD_CFG) &
+ ~(RAMIPS_GDM1_ICS_EN | RAMIPS_GDM1_TCS_EN | RAMIPS_GDM1_UCS_EN | 0xffff),
+ RAMIPS_GDMA1_FWD_CFG);
+ ramips_fe_wr(ramips_fe_rr(RAMIPS_CDMA_CSG_CFG) &
+ ~(RAMIPS_ICS_GEN_EN | RAMIPS_TCS_GEN_EN | RAMIPS_UCS_GEN_EN),
+ RAMIPS_CDMA_CSG_CFG);
+ ramips_fe_wr(RAMIPS_PSE_FQFC_CFG_INIT, RAMIPS_PSE_FQ_CFG);
+ ramips_fe_wr(1, RAMIPS_FE_RST_GL);
+ ramips_fe_wr(0, RAMIPS_FE_RST_GL);
+ netif_start_queue(dev);
+ return 0;
+}
+
+static int
+ramips_eth_stop(struct net_device *dev)
+{
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
+
+ ramips_fe_wr(RAMIPS_PDMA_GLO_CFG, ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) &
+ ~(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN | RAMIPS_TX_DMA_EN));
+ free_irq(dev->irq, dev);
+ netif_stop_queue(dev);
+ tasklet_kill(&priv->tx_housekeeping_tasklet);
+ tasklet_kill(&priv->rx_tasklet);
+ pci_free_consistent(NULL, NUM_TX_DESC * sizeof(struct ramips_tx_dma),
+ priv->tx, priv->phy_tx);
+ pci_free_consistent(NULL, NUM_RX_DESC * sizeof(struct ramips_rx_dma),
+ priv->rx, priv->phy_rx);
+ printk(KERN_INFO "ramips_eth: stopped\n");
+ return 0;
+}
+
+int __init
+ramips_eth_probe(struct net_device *dev)
+{
+ struct sockaddr addr;
+ unsigned char mac_addr01234[5] = {0x00, 0x0C, 0x43, 0x28, 0x80};
+
+ /* reset frame engine */
+ rt305x_sysc_wr(RAMIPS_FE_RESET_BIT, RAMIPS_FE_RESET);
+ rt305x_sysc_wr(0, RAMIPS_FE_RESET);
+
+ net_srandom(jiffies);
+ memcpy(addr.sa_data, mac_addr01234, 5);
+ addr.sa_data[5] = net_random()&0xFF;
+ ramips_eth_set_mac_addr(dev, &addr);
+
+ ether_setup(dev);
+ dev->open = ramips_eth_open;
+ dev->stop = ramips_eth_stop;
+ dev->hard_start_xmit = ramips_eth_hard_start_xmit;
+ dev->get_stats = ramips_eth_get_stats;
+ dev->set_mac_address = ramips_eth_set_mac_addr;
+ dev->mtu = MAX_RX_LENGTH;
+ dev->tx_timeout = ramips_eth_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
+ return 0;
+}
+
+int __init
+ramips_eth_init(void)
+{
+ ramips_fe_base = ioremap_nocache(RT305X_FE_BASE, PAGE_SIZE);
+ if(!ramips_fe_base)
+ return -ENOMEM;
+ ramips_dev = alloc_etherdev(sizeof(struct raeth_priv));
+ if(!ramips_dev)
+ return -ENOMEM;
+ strcpy(ramips_dev->name, "eth%d");
+ ramips_dev->irq = RT305X_CPU_IRQ_FE;
+ ramips_dev->addr_len = ETH_ALEN;
+ ramips_dev->base_addr = (unsigned long)ramips_fe_base;
+ ramips_dev->init = ramips_eth_probe;
+ if(register_netdev(ramips_dev))
+ {
+ printk(KERN_ERR "ramips_eth: error bringing up device\n");
+ return -ENXIO;
+ }
+#ifdef CONFIG_RALINK_RT305X
+ rt305x_esw_init();
+#endif
+ printk(KERN_INFO "ramips_eth: loaded\n");
+ return 0;
+}
+
+void
+ramips_eth_cleanup(void)
+{
+ unregister_netdev(ramips_dev);
+ free_netdev(ramips_dev);
+ printk(KERN_INFO "ramips_eth: unloaded");
+}
+
+module_init(ramips_eth_init);
+module_exit(ramips_eth_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_DESCRIPTION("ethernet driver for ramips boards");
diff --git a/target/linux/ramips/files/drivers/net/ramips_esw.c b/target/linux/ramips/files/drivers/net/ramips_esw.c
new file mode 100644
index 0000000000..58bbc3faab
--- /dev/null
+++ b/target/linux/ramips/files/drivers/net/ramips_esw.c
@@ -0,0 +1,119 @@
+#define GPIO_PRUPOSE 0x60
+#define GPIO_MDIO_BIT (1<<7)
+#define RT305X_ESW_PHY_WRITE (1 << 13)
+#define RT305X_ESW_PHY_TOUT (5 * HZ)
+#define RT305X_ESW_PHY_CONTROL_0 0xC0
+#define RT305X_ESW_PHY_CONTROL_1 0xC4
+
+static void __iomem *ramips_esw_base = 0;
+
+static inline void
+ramips_esw_wr(u32 val, unsigned reg)
+{
+ __raw_writel(val, ramips_esw_base + reg);
+}
+
+static inline u32
+ramips_esw_rr(unsigned reg)
+{
+ return __raw_readl(ramips_esw_base + reg);
+}
+
+static void
+ramips_enable_mdio(int s)
+{
+ u32 gpio = rt305x_sysc_rr(GPIO_PRUPOSE);
+ if(s)
+ gpio &= ~GPIO_MDIO_BIT;
+ else
+ gpio |= GPIO_MDIO_BIT;
+ rt305x_sysc_wr(gpio, GPIO_PRUPOSE);
+}
+
+u32
+mii_mgr_write(u32 phy_addr, u32 phy_register, u32 write_data)
+{
+ unsigned long volatile t_start = jiffies;
+ int ret = 0;
+
+ ramips_enable_mdio(1);
+ while(1)
+ {
+ if(!(ramips_esw_rr(RT305X_ESW_PHY_CONTROL_1) & (0x1 << 0)))
+ break;
+ if(time_after(jiffies, t_start + RT305X_ESW_PHY_TOUT))
+ {
+ ret = 1;
+ goto out;
+ }
+ }
+ ramips_esw_wr(((write_data & 0xFFFF) << 16) | (phy_register << 8) |
+ (phy_addr) | RT305X_ESW_PHY_WRITE, RT305X_ESW_PHY_CONTROL_0);
+ t_start = jiffies;
+ while(1)
+ {
+ if(ramips_esw_rr(RT305X_ESW_PHY_CONTROL_1) & (0x1 << 0))
+ break;
+ if(time_after(jiffies, t_start + RT305X_ESW_PHY_TOUT))
+ {
+ ret = 1;
+ break;
+ }
+ }
+out:
+ ramips_enable_mdio(0);
+ if(ret)
+ printk(KERN_ERR "ramips_eth: MDIO timeout\n");
+ return ret;
+}
+
+static int
+rt305x_esw_init(void)
+{
+ int i;
+
+ ramips_esw_base = ioremap_nocache(RT305X_SWITCH_BASE, PAGE_SIZE);
+ if(!ramips_esw_base)
+ return -ENOMEM;
+
+ /* vodoo from original driver */
+ ramips_esw_wr(0xC8A07850, 0x08);
+ ramips_esw_wr(0x00000000, 0xe4);
+ ramips_esw_wr(0x00405555, 0x14);
+ ramips_esw_wr(0x00002001, 0x50);
+ ramips_esw_wr(0x00007f7f, 0x90);
+ ramips_esw_wr(0x00007f3f, 0x98);
+ ramips_esw_wr(0x00d6500c, 0xcc);
+ ramips_esw_wr(0x0008a301, 0x9c);
+ ramips_esw_wr(0x02404040, 0x8c);
+ ramips_esw_wr(0x00001002, 0x48);
+ ramips_esw_wr(0x3f502b28, 0xc8);
+ ramips_esw_wr(0x00000000, 0x84);
+
+ mii_mgr_write(0, 31, 0x8000);
+ for(i = 0; i < 5; i++)
+ {
+ mii_mgr_write(i, 0, 0x3100); //TX10 waveform coefficient
+ mii_mgr_write(i, 26, 0x1601); //TX10 waveform coefficient
+ mii_mgr_write(i, 29, 0x7058); //TX100/TX10 AD/DA current bias
+ mii_mgr_write(i, 30, 0x0018); //TX100 slew rate control
+ }
+ /* PHY IOT */
+ mii_mgr_write(0, 31, 0x0); //select global register
+ mii_mgr_write(0, 22, 0x052f); //tune TP_IDL tail and head waveform
+ mii_mgr_write(0, 17, 0x0fe0); //set TX10 signal amplitude threshold to minimum
+ mii_mgr_write(0, 18, 0x40ba); //set squelch amplitude to higher threshold
+ mii_mgr_write(0, 14, 0x65); //longer TP_IDL tail length
+ mii_mgr_write(0, 31, 0x8000); //select local register
+
+ /* Port 5 Disabled */
+ rt305x_sysc_wr(rt305x_sysc_rr(0x60) | (1 << 9), 0x60); //set RGMII to GPIO mode (GPIO41-GPIO50)
+ rt305x_sysc_wr(0xfff, 0x674); //GPIO41-GPIO50 output mode
+ rt305x_sysc_wr(0x0, 0x670); //GPIO41-GPIO50 output low
+
+ /* set default vlan */
+ ramips_esw_wr(0x2001, 0x50);
+ ramips_esw_wr(0x5041, 0x70);
+
+ return 0;
+}
diff --git a/target/linux/ramips/patches-2.6.30/104-watchdog.patch b/target/linux/ramips/patches-2.6.30/104-watchdog.patch
new file mode 100644
index 0000000000..793bea1c6c
--- /dev/null
+++ b/target/linux/ramips/patches-2.6.30/104-watchdog.patch
@@ -0,0 +1,30 @@
+Index: linux-2.6.30.5/drivers/watchdog/Kconfig
+===================================================================
+--- linux-2.6.30.5.orig/drivers/watchdog/Kconfig 2009-08-16 23:19:38.000000000 +0200
++++ linux-2.6.30.5/drivers/watchdog/Kconfig 2009-09-04 15:19:34.000000000 +0200
+@@ -764,6 +764,13 @@
+ help
+ Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
+
++config RAMIPS_WDT
++ tristate "Ralink Watchdog Timer"
++ depends on MIPS_RALINK
++ help
++ Hardware driver for the built-in watchdog timer on Ralink MIPS SoCs.
++
++
+ # PARISC Architecture
+
+ # POWERPC Architecture
+Index: linux-2.6.30.5/drivers/watchdog/Makefile
+===================================================================
+--- linux-2.6.30.5.orig/drivers/watchdog/Makefile 2009-08-16 23:19:38.000000000 +0200
++++ linux-2.6.30.5/drivers/watchdog/Makefile 2009-09-04 15:19:34.000000000 +0200
+@@ -105,6 +105,7 @@
+ obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
+ obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
+ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
++obj-$(CONFIG_RAMIPS_WDT) += ramipswdt.o
+
+ # PARISC Architecture
+
diff --git a/target/linux/ramips/rt305x/config-2.6.30 b/target/linux/ramips/rt305x/config-2.6.30
index 1ce0825cbb..f757dbd7cf 100644
--- a/target/linux/ramips/rt305x/config-2.6.30
+++ b/target/linux/ramips/rt305x/config-2.6.30
@@ -98,6 +98,7 @@ CONFIG_MIPS_MT_DISABLED=y
# CONFIG_MIPS_MT_SMP is not set
# CONFIG_MIPS_MT_SMTC is not set
CONFIG_MIPS_RALINK=y
+CONFIG_MIPS_RAMIPS_NET=y
# CONFIG_MIPS_SIM is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_PHYSMAP=y