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--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/gmac.h
@@ -0,0 +1,21 @@
+/*
+ * Gemini GMAC specific defines
+ *
+ * Copyright (C) 2008, Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * 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.
+ */
+#ifndef __MACH_GMAC_H__
+#define __MACH_GMAC_H__
+
+#include <linux/phy.h>
+
+struct gemini_gmac_platform_data {
+ char *bus_id[2]; /* NULL means that this port is not used */
+ phy_interface_t interface[2];
+};
+
+#endif /* __MACH_GMAC_H__ */
--- /dev/null
+++ b/drivers/net/gemini_negmac/gm_gmac.c
@@ -0,0 +1,1359 @@
+/*
+ * Ethernet device driver for Gemini SoC.
+ *
+ * Copyright (C) 2006, Storlink, Corp.
+ * Copyright (C) 2008-2009, Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * 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.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/compiler.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/completion.h>
+#include <linux/kthread.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <linux/semaphore.h>
+#include <mach/irqs.h>
+#include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <mach/gmac.h>
+
+#include "gm_gmac.h"
+
+/* #define GMAX_TX_INTR_DISABLED */
+/* #define DO_HW_CHKSUM */
+/* #define ENABLE_TSO */
+#define GMAC_USE_TXQ0
+/* #define GMAC_LEN_1_2_ISSUE */
+
+#define DEFAULT_RXQ_MAX_CNT 256
+
+/* define chip information */
+#define DRV_VERSION "0.2"
+#define SL351x_DRIVER_NAME "Gemini Ethernet driver " DRV_VERSION
+
+#ifdef GMAC_LEN_1_2_ISSUE
+ #define _DEBUG_PREFETCH_NUM 256
+static int _debug_prefetch_cnt;
+static char _debug_prefetch_buf[_DEBUG_PREFETCH_NUM][4] __attribute__((aligned(4)));
+#endif
+
+static inline void gmac_write_reg(void __iomem *base, unsigned int offset,
+ unsigned int data, unsigned int bit_mask)
+{
+ unsigned int reg_val;
+
+ reg_val = (__raw_readl(base + offset) & (~bit_mask)) | (data & bit_mask);
+ __raw_writel(reg_val, base + offset);
+}
+
+/*----------------------------------------------------------------------
+* toe_init_free_queue
+* (1) Initialize the Free Queue Descriptor Base Address & size
+* Register: TOE_GLOBAL_BASE + 0x0004
+* (2) Initialize DMA Read/Write pointer for
+* SW Free Queue and HW Free Queue
+* (3) Initialize DMA Descriptors for
+* SW Free Queue and HW Free Queue,
+*----------------------------------------------------------------------*/
+static void toe_init_free_queue(struct toe_private *toe)
+{
+ int i;
+ DMA_RWPTR_T rwptr_reg;
+ void *desc_buf;
+ GMAC_RXDESC_T *sw_desc_ptr;
+ struct sk_buff *skb;
+
+ desc_buf = dma_alloc_coherent(toe->dev, TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T),
+ &toe->sw_freeq_desc_base_dma, GFP_KERNEL);
+ sw_desc_ptr = (GMAC_RXDESC_T *)desc_buf;
+ if (!desc_buf) {
+ dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__);
+ return;
+ }
+ memset(desc_buf, 0, TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T));
+
+ /* DMA Queue Base & Size */
+ __raw_writel((toe->sw_freeq_desc_base_dma & DMA_Q_BASE_MASK) | TOE_SW_FREEQ_DESC_POWER,
+ toe->global_base + GLOBAL_SW_FREEQ_BASE_SIZE_REG);
+
+ /* init descriptor base */
+ toe->swfq_desc_base = (unsigned int)desc_buf;
+
+ /* SW Free Queue Descriptors */
+ for (i = 0; i < TOE_SW_FREEQ_DESC_NUM; i++) {
+ sw_desc_ptr->word0.bits.buffer_size = SW_RX_BUF_SIZE;
+ skb = dev_alloc_skb(SW_RX_BUF_SIZE); /* allocate socket buffer */
+ if (!skb) {
+ dev_err(toe->dev, "%s::skb buffer allocation fail\n", __func__);
+ return;
+ }
+ REG32(skb->data) = (unsigned int)skb;
+ skb_reserve(skb, SKB_RESERVE_BYTES);
+ sw_desc_ptr->word2.buf_adr = dma_map_single(toe->dev, skb->data,
+ SW_RX_BUF_SIZE - SKB_RESERVE_BYTES,
+ DMA_FROM_DEVICE);
+ sw_desc_ptr++;
+ }
+
+ dma_sync_single_for_device(toe->dev, toe->sw_freeq_desc_base_dma,
+ TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T),
+ DMA_TO_DEVICE);
+
+ /* SW Free Queue Read/Write Pointer */
+ rwptr_reg.bits.wptr = TOE_SW_FREEQ_DESC_NUM - 1;
+ rwptr_reg.bits.rptr = 0;
+ __raw_writel(rwptr_reg.bits32, toe->global_base + GLOBAL_SWFQ_RWPTR_REG);
+
+ /* DMA Queue Base & Size */
+ __raw_writel(TOE_HW_FREEQ_DESC_POWER,
+ toe->global_base + GLOBAL_HW_FREEQ_BASE_SIZE_REG);
+ rwptr_reg.bits.wptr = TOE_HW_FREEQ_DESC_NUM - 1;
+ rwptr_reg.bits.rptr = 0;
+ __raw_writel(rwptr_reg.bits32, toe->global_base + GLOBAL_HWFQ_RWPTR_REG);
+}
+
+/*----------------------------------------------------------------------
+* toe_init_swtx_queue
+* (2) Initialize the GMAC 0/1 SW TXQ Queue Descriptor Base Address & sizeup
+* GMAC_SW_TX_QUEUE_BASE_REG(0x0050)
+* (2) Initialize DMA Read/Write pointer for
+* GMAC 0/1 SW TX Q0-5
+*----------------------------------------------------------------------*/
+static void toe_init_swtx_queue(struct net_device *dev)
+{
+ int i;
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ DMA_RWPTR_T rwptr_reg;
+ void __iomem *rwptr_addr;
+ void *desc_buf;
+ unsigned int offset;
+
+ desc_buf = dma_alloc_coherent(toe->dev, TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T),
+ &gmac->swtxq_desc_base_dma, GFP_KERNEL);
+ gmac->swtxq_desc_base = (unsigned int)desc_buf;
+ if (!desc_buf) {
+ dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__);
+ return;
+ }
+ memset(desc_buf, 0, TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T));
+ dma_sync_single_for_device(toe->dev, gmac->swtxq_desc_base_dma,
+ TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T),
+ DMA_TO_DEVICE);
+ __raw_writel((gmac->swtxq_desc_base_dma & DMA_Q_BASE_MASK) | TOE_GMAC_SWTXQ_DESC_POWER,
+ gmac->dma_base_addr + GMAC_SW_TX_QUEUE_BASE_REG);
+
+ /* GMAC0 SW TX Q0-Q5 */
+ offset = 0;
+ rwptr_reg.bits.wptr = 0;
+ rwptr_reg.bits.rptr = 0;
+ rwptr_addr = gmac->dma_base_addr + GMAC_SW_TX_QUEUE0_PTR_REG;
+ for (i = 0; i < TOE_SW_TXQ_NUM; i++) {
+ gmac->swtxq[i].rwptr_reg = rwptr_addr;
+ gmac->swtxq[i].desc_base_dma = (unsigned int)gmac->swtxq_desc_base_dma + offset;
+ gmac->swtxq[i].desc_base = (unsigned int)desc_buf + offset;
+ offset += TOE_GMAC_SWTXQ_DESC_NUM * sizeof(GMAC_TXDESC_T);
+ __raw_writel(rwptr_reg.bits32, rwptr_addr);
+ rwptr_addr += 4;
+ }
+}
+
+/*----------------------------------------------------------------------
+* toe_init_default_queue
+* (1) Initialize the default 0/1 Queue Header
+* Register: TOE_DEFAULT_Q0_HDR_BASE (0x60002000)
+* TOE_DEFAULT_Q1_HDR_BASE (0x60002008)
+* (2) Initialize Descriptors of Default Queue 0/1
+*----------------------------------------------------------------------*/
+static void toe_init_default_queue(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ volatile NONTOE_QHDR_T *qhdr;
+ GMAC_RXDESC_T *desc_ptr;
+
+ desc_ptr = dma_alloc_coherent(toe->dev, TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T),
+ &gmac->default_desc_base_dma, GFP_KERNEL);
+ if (!desc_ptr) {
+ dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__);
+ return;
+ }
+ memset(desc_ptr, 0, TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T));
+ dma_sync_single_for_device(toe->dev, gmac->default_desc_base_dma,
+ TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T),
+ DMA_TO_DEVICE);
+ gmac->default_desc_base = (unsigned int)desc_ptr;
+ qhdr = (volatile NONTOE_QHDR_T *)(toe->global_base + TOE_DEFAULT_Q_HDR_BASE(gmac->port_id));
+ qhdr->word0.base_size = ((unsigned int)gmac->default_desc_base_dma & NONTOE_QHDR0_BASE_MASK) | TOE_DEFAULT_Q_DESC_POWER;
+ qhdr->word1.bits32 = 0;
+ gmac->default_qhdr = (NONTOE_QHDR_T *)qhdr;
+}
+
+/*----------------------------------------------------------------------
+* toe_init_interrupt_config
+* Interrupt Select Registers are used to map interrupt to int0 or int1
+* Int0 and int1 are wired to CPU 0/1 GMAC 0/1
+* Interrupt Device Inteface data are used to pass device info to
+* upper device driver or store status/statistics
+* ISR handler
+* (1) If status bit ON but masked, the prinf error message (bug issue)
+* (2) If select bits are for me, handle it, else skip to let
+* the other ISR handles it.
+* Notes:
+* GMACx init routine (for eCOS) or open routine (for Linux)
+* enable the interrupt bits only which are selected for it.
+*
+* Default Setting:
+* GMAC0 intr bits ------> int0 ----> eth0
+* GMAC1 intr bits ------> int1 ----> eth1
+* TOE intr -------------> int0 ----> eth0
+* Classification Intr --> int0 ----> eth0
+* Default Q0 -----------> int0 ----> eth0
+* Default Q1 -----------> int1 ----> eth1
+*----------------------------------------------------------------------*/
+static void toe_init_interrupt_config(struct toe_private *toe)
+{
+ /* clear all status bits */
+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG);
+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG);
+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG);
+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG);
+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+ /* Init select registers */
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG);
+
+ /* disable all interrupt */
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_0_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_1_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_2_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_3_REG);
+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_4_REG);
+}
+
+static void toe_gmac_hw_start(struct gmac_private *gmac)
+{
+ GMAC_DMA_CTRL_T dma_ctrl;
+
+ /* program dma control register */
+ dma_ctrl.bits32 = __raw_readl(gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+ dma_ctrl.bits.rd_enable = 1;
+ dma_ctrl.bits.td_enable = 1;
+ dma_ctrl.bits.loopback = 0;
+ dma_ctrl.bits.drop_small_ack = 0;
+ dma_ctrl.bits.rd_prot = 0;
+ dma_ctrl.bits.rd_burst_size = 3;
+ dma_ctrl.bits.rd_insert_bytes = RX_INSERT_BYTES;
+ dma_ctrl.bits.rd_bus = 3;
+ dma_ctrl.bits.td_prot = 0;
+ dma_ctrl.bits.td_burst_size = 3;
+ dma_ctrl.bits.td_bus = 3;
+
+ __raw_writel(dma_ctrl.bits32, gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+}
+
+static void toe_gmac_hw_stop(struct gmac_private *gmac)
+{
+ GMAC_DMA_CTRL_T dma_ctrl;
+
+ /* program dma control register */
+ dma_ctrl.bits32 = __raw_readl(gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+ dma_ctrl.bits.rd_enable = 0;
+ dma_ctrl.bits.td_enable = 0;
+ __raw_writel(dma_ctrl.bits32, gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+}
+
+static void toe_gmac_init_chip(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ GMAC_CONFIG2_T config2_val;
+ GMAC_CONFIG0_T config0;
+ GMAC_CONFIG1_T config1;
+ GMAC_STATUS_T status;
+ GMAC_TX_WCR0_T hw_weigh;
+ GMAC_TX_WCR1_T sw_weigh;
+ GMAC_RX_FLTR_T rx_filter;
+
+ /* set RX_FLTR register to receive all multicast packet */
+ rx_filter.bits32 = __raw_readl(gmac->base_addr + GMAC_RX_FLTR);
+ rx_filter.bits.unicast = 1;
+ rx_filter.bits.multicast = 1;
+ rx_filter.bits.broadcast = 1;
+ __raw_writel(rx_filter.bits32, gmac->base_addr + GMAC_RX_FLTR);
+
+ /* set flow control threshold */
+ config1.bits32 = 0;
+ config1.bits.set_threshold = 32 / 2;
+ config1.bits.rel_threshold = 32 / 4 * 3;
+ __raw_writel(config1.bits32, gmac->base_addr + GMAC_CONFIG1);
+
+ /* set flow control threshold */
+ config2_val.bits32 = 0;
+ config2_val.bits.set_threshold = TOE_SW_FREEQ_DESC_NUM / 4;
+ config2_val.bits.rel_threshold = TOE_SW_FREEQ_DESC_NUM / 2;
+ __raw_writel(config2_val.bits32, gmac->base_addr + GMAC_CONFIG2);
+
+ /* disable TX/RX and disable internal loop back */
+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0);
+
+ config0.bits.max_len = 2;
+
+ gmac->flow_control_enable = 0;
+
+ config0.bits.tx_fc_en = 0; /* disable tx flow control */
+ config0.bits.rx_fc_en = 0; /* disable rx flow control */
+ config0.bits.dis_rx = 1; /* disable rx */
+ config0.bits.dis_tx = 1; /* disable tx */
+ config0.bits.loop_back = 0; /* enable/disable GMAC loopback */
+ config0.bits.rx_err_detect = 1;
+ config0.bits.rgmii_en = 0;
+ config0.bits.rgmm_edge = 1;
+ config0.bits.rxc_inv = 0;
+ config0.bits.ipv4_rx_chksum = 1; /* enable H/W to check ip checksum */
+ config0.bits.ipv6_rx_chksum = 1; /* enable H/W to check ip checksum */
+ config0.bits.port0_chk_hwq = 1;
+ config0.bits.port1_chk_hwq = 1;
+ config0.bits.port0_chk_toeq = 1;
+ config0.bits.port1_chk_toeq = 1;
+ config0.bits.port0_chk_classq = 1;
+ config0.bits.port1_chk_classq = 1;
+
+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0);
+
+ hw_weigh.bits32 = 0;
+ hw_weigh.bits.hw_tq3 = 1;
+ hw_weigh.bits.hw_tq2 = 1;
+ hw_weigh.bits.hw_tq1 = 1;
+ hw_weigh.bits.hw_tq0 = 1;
+ __raw_writel(hw_weigh.bits32, gmac->dma_base_addr + GMAC_TX_WEIGHTING_CTRL_0_REG);
+
+ sw_weigh.bits32 = 0;
+ sw_weigh.bits.sw_tq5 = 1;
+ sw_weigh.bits.sw_tq4 = 1;
+ sw_weigh.bits.sw_tq3 = 1;
+ sw_weigh.bits.sw_tq2 = 1;
+ sw_weigh.bits.sw_tq1 = 1;
+ sw_weigh.bits.sw_tq0 = 1;
+ __raw_writel(sw_weigh.bits32, gmac->dma_base_addr + GMAC_TX_WEIGHTING_CTRL_1_REG);
+
+ /* set interface type */
+ status.bits32 = __raw_readl(gmac->base_addr + GMAC_STATUS);
+
+ switch (gmac->phydev->interface) {
+ case PHY_INTERFACE_MODE_MII:
+ status.bits.mii_rmii = GMAC_PHY_MII;
+ break;
+ case PHY_INTERFACE_MODE_GMII:
+ status.bits.mii_rmii = GMAC_PHY_GMII;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
+ break;
+ default:
+ dev_err(&dev->dev, "Unsupported MII interface\n");
+ return;
+ }
+
+ __raw_writel(status.bits32, gmac->base_addr + GMAC_STATUS);
+}
+
+static void toe_init_gmac(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ u32 data;
+
+ /* GMAC initialization */
+ toe_gmac_init_chip(dev);
+
+ /* -----------------------------------------------------------
+ Enable GMAC interrupt & disable loopback
+ Notes:
+ GMACx init routine (for eCOS) or open routine (for Linux)
+ enable the interrupt bits only which are selected for him.
+ --------------------------------------------------------------*/
+
+ /* Enable Interrupt Bits */
+ if (gmac->port_id == 0) {
+ gmac->intr0_selected = GMAC0_TXDERR_INT_BIT | GMAC0_TXPERR_INT_BIT |
+ GMAC0_RXDERR_INT_BIT | GMAC0_RXPERR_INT_BIT |
+ GMAC0_SWTQ05_FIN_INT_BIT | GMAC0_SWTQ05_EOF_INT_BIT |
+ GMAC0_SWTQ04_FIN_INT_BIT | GMAC0_SWTQ04_EOF_INT_BIT |
+ GMAC0_SWTQ03_FIN_INT_BIT | GMAC0_SWTQ03_EOF_INT_BIT |
+ GMAC0_SWTQ02_FIN_INT_BIT | GMAC0_SWTQ02_EOF_INT_BIT |
+ GMAC0_SWTQ01_FIN_INT_BIT | GMAC0_SWTQ01_EOF_INT_BIT |
+ GMAC0_SWTQ00_FIN_INT_BIT | GMAC0_SWTQ00_EOF_INT_BIT;
+
+#ifdef GMAX_TX_INTR_DISABLED
+ gmac->intr0_enabled = 0;
+#else
+ gmac->intr0_enabled = GMAC0_SWTQ00_FIN_INT_BIT | GMAC0_SWTQ00_EOF_INT_BIT;
+#endif
+
+ gmac->intr1_selected = TOE_IQ_ALL_BITS | TOE_CLASS_RX_INT_BITS |
+ GMAC0_HWTQ03_EOF_INT_BIT | GMAC0_HWTQ02_EOF_INT_BIT |
+ GMAC0_HWTQ01_EOF_INT_BIT | GMAC0_HWTQ00_EOF_INT_BIT |
+ DEFAULT_Q0_INT_BIT;
+ gmac->intr1_enabled = DEFAULT_Q0_INT_BIT | TOE_IQ_ALL_BITS;
+ gmac->intr2_selected = 0xffffffff; /* TOE Queue 32-63 FUUL Intr */
+ gmac->intr2_enabled = 0xffffffff;
+ gmac->intr3_selected = 0xffffffff; /* TOE Queue 0-31 FUUL Intr */
+ gmac->intr3_enabled = 0xffffffff;
+ gmac->intr4_selected = GMAC0_INT_BITS | CLASS_RX_FULL_INT_BITS |
+ HWFQ_EMPTY_INT_BIT | SWFQ_EMPTY_INT_BIT;
+ gmac->intr4_enabled = GMAC0_INT_BITS | SWFQ_EMPTY_INT_BIT;
+
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG) & ~gmac->intr0_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG) & ~gmac->intr1_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG) & ~gmac->intr2_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG) & ~gmac->intr3_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG) & ~gmac->intr4_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG);
+ } else {
+ gmac->intr0_selected = GMAC1_TXDERR_INT_BIT | GMAC1_TXPERR_INT_BIT |
+ GMAC1_RXDERR_INT_BIT | GMAC1_RXPERR_INT_BIT |
+ GMAC1_SWTQ15_FIN_INT_BIT | GMAC1_SWTQ15_EOF_INT_BIT |
+ GMAC1_SWTQ14_FIN_INT_BIT | GMAC1_SWTQ14_EOF_INT_BIT |
+ GMAC1_SWTQ13_FIN_INT_BIT | GMAC1_SWTQ13_EOF_INT_BIT |
+ GMAC1_SWTQ12_FIN_INT_BIT | GMAC1_SWTQ12_EOF_INT_BIT |
+ GMAC1_SWTQ11_FIN_INT_BIT | GMAC1_SWTQ11_EOF_INT_BIT |
+ GMAC1_SWTQ10_FIN_INT_BIT | GMAC1_SWTQ10_EOF_INT_BIT;
+#ifdef GMAX_TX_INTR_DISABLED
+ gmac->intr0_enabled = 0;
+#else
+ gmac->intr0_enabled = GMAC1_SWTQ10_FIN_INT_BIT | GMAC1_SWTQ10_EOF_INT_BIT;
+#endif
+
+ gmac->intr1_selected = DEFAULT_Q1_INT_BIT;
+ gmac->intr1_enabled = DEFAULT_Q1_INT_BIT | TOE_IQ_ALL_BITS;
+ gmac->intr2_selected = 0; /* TOE Queue 32-63 FUUL Intr */
+ gmac->intr2_enabled = 0;
+ gmac->intr3_selected = 0; /* TOE Queue 0-31 FUUL Intr */
+ gmac->intr3_enabled = 0;
+ gmac->intr4_selected = GMAC1_INT_BITS;
+ gmac->intr4_enabled = GMAC1_INT_BITS;
+
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG) | gmac->intr0_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG) | gmac->intr1_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG) | gmac->intr2_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG) | gmac->intr3_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG);
+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG) | gmac->intr4_selected;
+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG);
+ }
+
+ /* enable only selected bits */
+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_0_REG,
+ gmac->intr0_enabled, gmac->intr0_selected);
+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_1_REG,
+ gmac->intr1_enabled, gmac->intr1_selected);
+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_2_REG,
+ gmac->intr2_enabled, gmac->intr2_selected);
+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_3_REG,
+ gmac->intr3_enabled, gmac->intr3_selected);
+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_4_REG,
+ gmac->intr4_enabled, gmac->intr4_selected);
+
+ /* start DMA process */
+ toe_gmac_hw_start(gmac);
+}
+
+static void toe_gmac_enable_tx_rx(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ GMAC_CONFIG0_T config0;
+
+ /* enable TX/RX */
+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0);
+ config0.bits.dis_rx = 0; /* enable rx */
+ config0.bits.dis_tx = 0; /* enable tx */
+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0);
+}
+
+static void toe_gmac_disable_tx_rx(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ GMAC_CONFIG0_T config0;
+
+ /* enable TX/RX */
+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0);
+ config0.bits.dis_rx = 1; /* disable rx */
+ config0.bits.dis_tx = 1; /* disable tx */
+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0);
+}
+
+static void toe_gmac_tx_complete(struct net_device *dev, unsigned int tx_qid)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ GMAC_TXDESC_T *curr_desc;
+ GMAC_TXDESC_0_T word0;
+ GMAC_TXDESC_1_T word1;
+ unsigned int desc_count;
+ GMAC_SWTXQ_T *swtxq;
+ DMA_RWPTR_T rwptr;
+
+ /* get tx H/W completed descriptor virtual address */
+ /* check tx status and accumulate tx statistics */
+ swtxq = &gmac->swtxq[tx_qid];
+ for (;;) {
+ rwptr.bits32 = __raw_readl(swtxq->rwptr_reg);
+ if (rwptr.bits.rptr == swtxq->finished_idx)
+ break;
+ curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + swtxq->finished_idx;
+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+ sizeof(GMAC_TXDESC_T),
+ DMA_FROM_DEVICE);
+ word0.bits32 = curr_desc->word0.bits32;
+ word1.bits32 = curr_desc->word1.bits32;
+
+ if (word0.bits.status_tx_ok) {
+ dev->stats.tx_bytes += word1.bits.byte_count;
+ desc_count = word0.bits.desc_count;
+ if (desc_count == 0) {
+ dev_err(&dev->dev, "%s::Desc 0x%x = 0x%x, desc_count=%d\n", __func__, (u32)curr_desc, word0.bits32, desc_count);
+ BUG();
+ }
+ while (--desc_count) {
+ word0.bits.status_tx_ok = 0;
+ curr_desc->word0.bits32 = word0.bits32;
+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+ sizeof(GMAC_TXDESC_T),
+ DMA_TO_DEVICE);
+ swtxq->finished_idx = RWPTR_ADVANCE_ONE(swtxq->finished_idx, TOE_GMAC_SWTXQ_DESC_NUM);
+ curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + swtxq->finished_idx;
+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+ sizeof(GMAC_TXDESC_T),
+ DMA_FROM_DEVICE);
+ word0.bits32 = curr_desc->word0.bits32;
+ }
+
+ word0.bits.status_tx_ok = 0;
+ dev_kfree_skb_any(swtxq->tx_skb[swtxq->finished_idx]);
+ swtxq->tx_skb[swtxq->finished_idx] = NULL;
+
+ curr_desc->word0.bits32 = word0.bits32;
+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+ sizeof(GMAC_TXDESC_T),
+ DMA_TO_DEVICE);
+ dev->stats.tx_packets++;
+ swtxq->finished_idx = RWPTR_ADVANCE_ONE(swtxq->finished_idx, TOE_GMAC_SWTXQ_DESC_NUM);
+ } else {
+ break;
+ }
+ }
+
+ if (netif_queue_stopped(dev))
+ netif_wake_queue(dev);
+}
+
+static int gmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ DMA_RWPTR_T rwptr;
+ GMAC_TXDESC_T *curr_desc;
+ int snd_pages = skb_shinfo(skb)->nr_frags + 1; /* get number of descriptor */
+ int frag_id = 0;
+ int len, total_len = skb->len;
+ struct net_device_stats *isPtr = &dev->stats;
+ unsigned int free_desc;
+ GMAC_SWTXQ_T *swtxq;
+ register unsigned long word0, word1, word2, word3;
+ unsigned short wptr, rptr;
+
+#ifdef GMAC_LEN_1_2_ISSUE
+ int total_pages;
+ total_pages = snd_pages;
+#endif
+
+ if (skb->len >= 0x10000) {
+ isPtr->tx_dropped++;
+ dev_err(&dev->dev, "%s::skb->len %d >= 64K\n", __func__, skb->len);
+ netif_stop_queue(dev);
+ return 1;
+ }
+
+#ifdef GMAC_USE_TXQ0
+ #define tx_qid 0
+#endif
+
+ swtxq = &gmac->swtxq[tx_qid];
+
+ rwptr.bits32 = __raw_readl(swtxq->rwptr_reg);
+ wptr = rwptr.bits.wptr;
+ rptr = rwptr.bits.rptr;
+
+ /*
+ * check finished desc or empty BD
+ * cannot check by read ptr of RW PTR register,
+ * because the HW complete to send but the SW may NOT handle it
+ */
+#ifdef GMAX_TX_INTR_DISABLED
+ toe_gmac_tx_complete(dev, tx_qid);
+#endif
+ if (wptr >= swtxq->finished_idx)
+ free_desc = TOE_GMAC_SWTXQ_DESC_NUM - wptr + swtxq->finished_idx;
+ else
+ free_desc = swtxq->finished_idx - wptr;
+
+ if (free_desc < snd_pages) {
+ isPtr->tx_dropped++;
+ netif_stop_queue(dev);
+ return 1;
+ }
+
+ while (snd_pages) {
+ dma_addr_t pkt_datap;
+
+ curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + wptr;
+ if (frag_id == 0) {
+ len = skb_headlen(skb);
+ pkt_datap = dma_map_single(toe->dev, skb->data, len, DMA_TO_DEVICE);
+ } else {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_id - 1];
+ len = frag->size;
+ pkt_datap = dma_map_page(toe->dev, frag->page.p, frag->page_offset, len, DMA_TO_DEVICE);
+ }
+
+ /* set TX descriptor */
+ word0 = len;
+ word3 = (dev->mtu + 14) | EOFIE_BIT;
+
+#ifdef DO_HW_CHKSUM
+ if (total_len <= 1514 && ip_hdr(skb) && (ip_hdr(skb)->frag_off & __constant_htons(0x3fff)))
+ word1 = total_len |
+ TSS_IP_CHKSUM_BIT |
+ TSS_IPV6_ENABLE_BIT |
+ TSS_MTU_ENABLE_BIT;
+ else
+ word1 = total_len |
+ TSS_UDP_CHKSUM_BIT |
+ TSS_TCP_CHKSUM_BIT |
+ TSS_IP_CHKSUM_BIT |
+ TSS_IPV6_ENABLE_BIT |
+ TSS_MTU_ENABLE_BIT;
+#else
+ word1 = total_len | TSS_MTU_ENABLE_BIT;
+#endif
+ word2 = (unsigned long)pkt_datap;
+
+ if (frag_id == 0)
+ word3 |= SOF_BIT;
+
+ if (snd_pages == 1) {
+ word3 |= EOF_BIT;
+ swtxq->tx_skb[wptr] = skb;
+ } else
+ swtxq->tx_skb[wptr] = NULL;
+
+#ifdef GMAC_LEN_1_2_ISSUE
+ if ((total_pages != snd_pages) && (len == 1 || len == 2) && ((u32)pkt_datap & 0x03)) {
+ memcpy((void *)&_debug_prefetch_buf[_debug_prefetch_cnt][0], pkt_datap, len);
+ pkt_datap = (char *)&_debug_prefetch_buf[_debug_prefetch_cnt][0];
+ word2 = (unsigned long)__pa(pkt_datap);
+ _debug_prefetch_cnt++;
+ if (_debug_prefetch_cnt >= _DEBUG_PREFETCH_NUM)
+ _debug_prefetch_cnt = 0;
+ }
+#endif
+ curr_desc->word0.bits32 = word0;
+ curr_desc->word1.bits32 = word1;
+ curr_desc->word2.bits32 = word2;
+ curr_desc->word3.bits32 = word3;
+ free_desc--;
+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+ wptr * sizeof(GMAC_TXDESC_T),
+ sizeof(GMAC_TXDESC_T),
+ DMA_TO_DEVICE);
+ wptr = RWPTR_ADVANCE_ONE(wptr, TOE_GMAC_SWTXQ_DESC_NUM);
+ frag_id++;
+ snd_pages--;
+ }
+
+ SET_WPTR(swtxq->rwptr_reg, wptr);
+ dev->trans_start = jiffies;
+
+ return 0;
+}
+
+static void __gmac_set_mac_address(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ unsigned int reg_val;
+
+ reg_val = dev->dev_addr[0] + (dev->dev_addr[1] << 8) +
+ (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
+ __raw_writel(reg_val, gmac->base_addr + GMAC_STA_ADD0);
+ reg_val = (__raw_readl(gmac->base_addr + GMAC_STA_ADD1) & 0xFFFF0000) +
+ dev->dev_addr[4] + (dev->dev_addr[5] << 8);
+ __raw_writel(reg_val, gmac->base_addr + GMAC_STA_ADD1);
+}
+
+static int gmac_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct sockaddr *sa = addr;
+
+ memcpy(dev->dev_addr, sa->sa_data, dev->addr_len);
+
+ __gmac_set_mac_address(dev);
+
+ return 0;
+}
+
+static void gmac_get_mac_address(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ unsigned int reg_val;
+
+ reg_val = __raw_readl(gmac->base_addr + GMAC_STA_ADD0);
+ dev->dev_addr[0] = reg_val & 0xFF;
+ dev->dev_addr[1] = (reg_val >> 8) & 0xFF;
+ dev->dev_addr[2] = (reg_val >> 16) & 0xFF;
+ dev->dev_addr[3] = (reg_val >> 24) & 0xFF;
+ reg_val = __raw_readl(gmac->base_addr + GMAC_STA_ADD1);
+ dev->dev_addr[4] = reg_val & 0xFF;
+ dev->dev_addr[5] = (reg_val >> 8) & 0xFF;
+
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ random_ether_addr(dev->dev_addr);
+ __gmac_set_mac_address(dev);
+ }
+}
+
+struct net_device_stats *gmac_get_stats(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+
+ if (netif_running(dev)) {
+ unsigned short multicast;
+
+ multicast = __raw_readw(gmac->base_addr + GMAC_IN_MCAST) +
+ __raw_readw(gmac->base_addr + GMAC_IN_BCAST);
+
+ dev->stats.rx_dropped += __raw_readw(gmac->base_addr + GMAC_IN_DISCARDS);
+ dev->stats.rx_errors += __raw_readw(gmac->base_addr + GMAC_IN_ERRORS);
+ dev->stats.rx_packets += __raw_readl(gmac->base_addr + GMAC_IN_MAC1) + multicast;
+ dev->stats.multicast += multicast;
+ }
+
+ return &dev->stats;
+}
+
+/* TODO: If possible use crc32 from kernel lib */
+static unsigned const ethernet_polynomial = 0x04c11db7U;
+static unsigned int ether_crc(int length, unsigned char *data)
+{
+ int crc = -1;
+ unsigned int i;
+ unsigned int crc_val = 0;
+
+ while (--length >= 0) {
+ unsigned char current_octet = *data++;
+ int bit;
+ for (bit = 0; bit < 8; bit++, current_octet >>= 1)
+ crc = (crc << 1) ^ ((crc < 0) ^ (current_octet & 1) ?
+ ethernet_polynomial : 0);
+ }
+ crc = ~crc;
+ for (i = 0; i < 32; i++)
+ crc_val = crc_val + (((crc << i) & 0x80000000) >> (31 - i));
+
+ return crc_val;
+}
+
+/*----------------------------------------------------------------------
+* toe_gmac_fill_free_q
+* allocate buffers for free queue.
+*----------------------------------------------------------------------*/
+static void toe_gmac_fill_free_q(struct toe_private *toe)
+{
+ struct sk_buff *skb;
+ DMA_RWPTR_T fq_rwptr;
+ GMAC_RXDESC_T *fq_desc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&toe->freeq_lock, flags);
+ fq_rwptr.bits32 = __raw_readl(toe->global_base + GLOBAL_SWFQ_RWPTR_REG);
+ while ((unsigned short)RWPTR_ADVANCE_ONE(fq_rwptr.bits.wptr,
+ TOE_SW_FREEQ_DESC_NUM) != fq_rwptr.bits.rptr) {
+ skb = dev_alloc_skb(SW_RX_BUF_SIZE);
+ if (skb == NULL) {
+ dev_err(toe->dev, "%s::skb allocation fail\n", __func__);
+ break;
+ }
+ REG32(skb->data) = (unsigned int)skb;
+ skb_reserve(skb, SKB_RESERVE_BYTES);
+ fq_rwptr.bits.wptr = RWPTR_ADVANCE_ONE(fq_rwptr.bits.wptr,
+ TOE_SW_FREEQ_DESC_NUM);
+ fq_desc = (GMAC_RXDESC_T *)toe->swfq_desc_base + fq_rwptr.bits.wptr;
+ fq_desc->word2.buf_adr = dma_map_single(toe->dev, skb->data,
+ SW_RX_BUF_SIZE - SKB_RESERVE_BYTES,
+ DMA_FROM_DEVICE);
+ dma_sync_single_range_for_device(toe->dev,
+ toe->sw_freeq_desc_base_dma,
+ fq_rwptr.bits.wptr * sizeof(GMAC_RXDESC_T),
+ sizeof(GMAC_RXDESC_T),
+ DMA_TO_DEVICE);
+ SET_WPTR(toe->global_base + GLOBAL_SWFQ_RWPTR_REG, fq_rwptr.bits.wptr);
+ }
+ spin_unlock_irqrestore(&toe->freeq_lock, flags);
+}
+
+static void fill_free_q_worker(struct work_struct *work)
+{
+ struct toe_private *toe = container_of(work, struct toe_private, freq_work);
+
+ toe_gmac_fill_free_q(toe);
+}
+
+/*----------------------------------------------------------------------
+* toe_gmac_handle_default_rxq
+* (1) Get rx Buffer for default Rx queue
+* (2) notify or call upper-routine to handle it
+* (3) get a new buffer and insert it into SW free queue
+* (4) Note: The SW free queue Read-Write Pointer should be locked when accessing
+*----------------------------------------------------------------------*/
+static void toe_gmac_handle_default_rxq(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ GMAC_RXDESC_T *curr_desc;
+ struct sk_buff *skb;
+ DMA_RWPTR_T rwptr;
+ unsigned int pkt_size;
+ int max_cnt;
+ unsigned int desc_count;
+ unsigned int chksum_status, rx_status;
+ struct net_device_stats *isPtr = &dev->stats;
+
+ rwptr.bits32 = __raw_readl(&gmac->default_qhdr->word1);
+ max_cnt = DEFAULT_RXQ_MAX_CNT;
+ while ((--max_cnt) && rwptr.bits.rptr != rwptr.bits.wptr) {
+ curr_desc = (GMAC_RXDESC_T *)gmac->default_desc_base + rwptr.bits.rptr;
+ dma_sync_single_range_for_device(toe->dev,
+ gmac->default_desc_base_dma,
+ rwptr.bits.rptr * sizeof(GMAC_RXDESC_T),
+ sizeof(GMAC_RXDESC_T),
+ DMA_FROM_DEVICE);
+ rx_status = curr_desc->word0.bits.status;
+ chksum_status = curr_desc->word0.bits.chksum_status;
+ pkt_size = curr_desc->word1.bits.byte_count; /* total byte count in a frame */
+ desc_count = curr_desc->word0.bits.desc_count; /* get descriptor count per frame */
+ skb = (struct sk_buff *)(REG32(__va(curr_desc->word2.buf_adr) - SKB_RESERVE_BYTES));
+
+ if ((curr_desc->word0.bits32 & (GMAC_RXDESC_0_T_derr | GMAC_RXDESC_0_T_perr))
+ || (pkt_size < 60) || (chksum_status & 0x4) || rx_status) {
+ if (curr_desc->word0.bits32 & GMAC_RXDESC_0_T_derr)
+ dev_err(&dev->dev, "%s::derr\n", __func__);
+ if (curr_desc->word0.bits32 & GMAC_RXDESC_0_T_perr)
+ dev_err(&dev->dev, "%s::perr\n", __func__);
+ if (rx_status && (rx_status == 4 || rx_status == 7))
+ isPtr->rx_crc_errors++;
+
+ dev_kfree_skb_irq(skb);
+ goto bad_frame;
+ }
+
+ if (curr_desc->word0.bits.drop)
+ dev_warn(&dev->dev, "%s::Drop\n", __func__);
+
+ /* get frame information from the first descriptor of the frame */
+ skb_reserve(skb, RX_INSERT_BYTES); /* 16 byte align the IP fields. */
+ skb_put(skb, pkt_size);
+ skb->dev = dev;
+ skb->protocol = eth_type_trans(skb, dev);
+ if (chksum_status == RX_CHKSUM_IP_UDP_TCP_OK || chksum_status == RX_CHKSUM_IP_OK_ONLY)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+ netif_rx(skb); /* socket rx */
+ dev->last_rx = jiffies;
+
+ isPtr->rx_bytes += pkt_size;
+
+bad_frame:
+ /* advance one for Rx default Q 0/1 */
+ rwptr.bits.rptr = RWPTR_ADVANCE_ONE(rwptr.bits.rptr, TOE_DEFAULT_Q_DESC_NUM);
+ SET_RPTR(&gmac->default_qhdr->word1, rwptr.bits.rptr);
+ }
+
+ schedule_work(&toe->freq_work);
+}
+
+static irqreturn_t toe_gmac_interrupt(int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct gmac_private *gmac = netdev_priv(dev);
+ struct toe_private *toe = dev->ml_priv;
+ unsigned int status0;
+ unsigned int status1;
+ unsigned int status2;
+ unsigned int status3;
+ unsigned int status4;
+ int handled = 0;
+
+ /* read Interrupt status */
+ status0 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG);
+ status1 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG);
+ status2 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG);
+ status3 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG);
+ status4 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+ /* clear interrupts */
+ if (status0)
+ __raw_writel(status0, toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG);
+ if (status1)
+ __raw_writel(status1, toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG);
+ if (status2)
+ __raw_writel(status2, toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG);
+ if (status3)
+ __raw_writel(status3, toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG);
+ if (status4)
+ __raw_writel(status4, toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+ /* handle freeq interrupt first */
+ if (status4 & gmac->intr4_enabled) {
+ if ((status4 & SWFQ_EMPTY_INT_BIT) && (gmac->intr4_enabled & SWFQ_EMPTY_INT_BIT)) {
+ toe_gmac_fill_free_q(toe);
+ handled = 1;
+ }
+ }
+
+ /* Interrupt Status 1 */
+ if (status1 & gmac->intr1_enabled) {
+ /*
+ * Handle GMAC 0/1 HW Tx queue 0-3 EOF events
+ * Only count
+ * TOE, Classification, and default queues interrupts are handled by ISR
+ * because they should pass packets to upper layer
+ */
+ if (gmac->port_id == 0) {
+ if (netif_running(dev) && (status1 & DEFAULT_Q0_INT_BIT) && (gmac->intr1_enabled & DEFAULT_Q0_INT_BIT)) {
+ toe_gmac_handle_default_rxq(dev);
+ handled = 1;
+ }
+ } else if (gmac->port_id == 1) {
+ if (netif_running(dev) && (status1 & DEFAULT_Q1_INT_BIT) && (gmac->intr1_enabled & DEFAULT_Q1_INT_BIT)) {
+ toe_gmac_handle_default_rxq(dev);
+ handled = 1;
+ }
+ }
+ }
+
+ /* Interrupt Status 0 */
+ if (status0 & gmac->intr0_enabled) {
+#ifndef GMAX_TX_INTR_DISABLED
+ if (gmac->port_id == 1 && netif_running(dev) &&
+ (((status0 & GMAC1_SWTQ10_FIN_INT_BIT) && (gmac->intr0_enabled & GMAC1_SWTQ10_FIN_INT_BIT))
+ ||
+ ((status0 & GMAC1_SWTQ10_EOF_INT_BIT) && (gmac->intr0_enabled & GMAC1_SWTQ10_EOF_INT_BIT)))) {
+ toe_gmac_tx_complete(dev, 0);
+ handled = 1;
+ }
+
+ if (gmac->port_id == 0 && netif_running(dev) &&
+ (((status0 & GMAC0_SWTQ00_FIN_INT_BIT) && (gmac->intr0_enabled & GMAC0_SWTQ00_FIN_INT_BIT))
+ ||
+ ((status0 & GMAC0_SWTQ00_EOF_INT_BIT) && (gmac->intr0_enabled & GMAC0_SWTQ00_EOF_INT_BIT)))) {
+ toe_gmac_tx_complete(dev, 0);
+ handled = 1;
+ }
+#endif
+ }
+
+ return IRQ_RETVAL(handled);
+}
+
+static int gmac_open(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ int retval;
+
+ /* hook ISR */
+ retval = request_irq(dev->irq, toe_gmac_interrupt, 0, dev->name, dev);
+ if (retval)
+ return retval;
+
+ toe_init_gmac(dev);
+
+ netif_carrier_off(dev);
+ phy_start(gmac->phydev);
+
+ netif_start_queue(dev);
+
+ return 0;
+}
+
+static int gmac_close(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+
+ netif_stop_queue(dev);
+ mdelay(20);
+
+ if (gmac->phydev)
+ phy_stop(gmac->phydev);
+
+ /* stop tx/rx packet */
+ toe_gmac_disable_tx_rx(dev);
+ mdelay(20);
+
+ /* stop the chip's Tx and Rx DMA processes */
+ toe_gmac_hw_stop(gmac);
+
+ disable_irq(dev->irq);
+ free_irq(dev->irq, dev);
+
+ return 0;
+}
+
+static void gmac_get_phy_status(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ GMAC_CONFIG0_T config0;
+ GMAC_STATUS_T status, old_status;
+ struct phy_device *phydev = gmac->phydev;
+
+ old_status.bits32 = status.bits32 = __raw_readl(gmac->base_addr + GMAC_STATUS);
+
+ status.bits.link = phydev->link;
+ status.bits.duplex = phydev->duplex;
+
+ switch (phydev->speed) {
+ case 1000:
+ status.bits.speed = GMAC_SPEED_1000;
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+ status.bits.mii_rmii = GMAC_PHY_RGMII_1000;
+ break;
+ case 100:
+ status.bits.speed = GMAC_SPEED_100;
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+ status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
+ break;
+ case 10:
+ status.bits.speed = GMAC_SPEED_10;
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+ status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
+ break;
+ default:
+ dev_warn(&dev->dev, "Not supported PHY speed (%d)\n", phydev->speed);
+ }
+
+ if (phydev->pause) {
+ if (gmac->flow_control_enable == 0) {
+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0);
+ config0.bits.tx_fc_en = 1; /* enable tx flow control */
+ config0.bits.rx_fc_en = 1; /* enable rx flow control */
+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0);
+ dev_info(&dev->dev, "MII flow control enabled\n");
+ }
+ gmac->flow_control_enable = 1;
+ } else {
+ if (gmac->flow_control_enable == 1) {
+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0);
+ config0.bits.tx_fc_en = 0; /* disable tx flow control */
+ config0.bits.rx_fc_en = 0; /* disable rx flow control */
+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0);
+ dev_info(&dev->dev, "MII flow control disabled\n");
+ }
+ gmac->flow_control_enable = 0;
+ }
+
+ if (old_status.bits32 != status.bits32) {
+ toe_gmac_disable_tx_rx(dev);
+ phy_print_status(phydev);
+ mdelay(10); /* let GMAC consume packet */
+ __raw_writel(status.bits32, gmac->base_addr + GMAC_STATUS);
+ if (status.bits.link)
+ toe_gmac_enable_tx_rx(dev);
+ }
+}
+
+static void gmac_set_rx_mode(struct net_device *dev)
+{
+ struct gmac_private *gmac = netdev_priv(dev);
+ GMAC_RX_FLTR_T filter;
+ unsigned int mc_filter[2]; /* Multicast hash filter */
+ int bit_nr;
+
+ filter.bits32 = 0;
+ filter.bits.error = 0;
+ if (dev->flags & IFF_PROMISC) {
+ filter.bits.error = 1;
+ filter.bits.promiscuous = 1;
+ filter.bits.broadcast = 1;
+ filter.bits.multicast = 1;
+ filter.bits.unicast = 1;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if (dev->flags & IFF_ALLMULTI) {
+ filter.bits.broadcast = 1;
+ filter.bits.multicast = 1;
+ filter.bits.unicast = 1;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ filter.bits.broadcast = 1;
+ filter.bits.multicast = 1;
+ filter.bits.unicast = 1;
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3f;
+ if (bit_nr <= 32)
+ mc_filter[0] = mc_filter[0] | (1 << bit_nr);
+ else
+ mc_filter[1] = mc_filter[1] | (1 << (bit_nr - 32));
+ }
+ }
+ __raw_writel(filter.bits32, gmac->base_addr + GMAC_RX_FLTR);
+ __raw_writel(mc_filter[0], gmac->base_addr + GMAC_MCAST_FIL0);
+ __raw_writel(mc_filter[1], gmac->base_addr + GMAC_MCAST_FIL1);
+}
+
+static void gmac_tx_timeout(struct net_device *dev)
+{
+ if (!netif_queue_stopped(dev))
+ netif_wake_queue(dev);
+
+ dev_warn(&dev->dev, "TX timeout\n");
+}
+
+const static struct net_device_ops gemini_gmac_ops = {
+ .ndo_open = gmac_open,
+ .ndo_stop = gmac_close,
+ .ndo_start_xmit = gmac_start_xmit,
+ .ndo_get_stats = gmac_get_stats,
+ .ndo_set_rx_mode = gmac_set_rx_mode,
+ .ndo_set_mac_address = gmac_set_mac_address,
+ .ndo_tx_timeout = gmac_tx_timeout,
+};
+
+static void mac_init_drv(struct toe_private *toe)
+{
+ QUEUE_THRESHOLD_T threshold;
+ DMA_SKB_SIZE_T skb_size;
+
+ /* clear non TOE Queue Header Area */
+ memset(toe->global_base + TOE_NONTOE_QUE_HDR_BASE, 0,
+ NONTOE_Q_HDR_AREA_END - TOE_NONTOE_QUE_HDR_BASE);
+
+ /* clear TOE Queue Header Area */
+ memset(toe->global_base + TOE_TOE_QUE_HDR_BASE, 0,
+ TOE_Q_HDR_AREA_END - TOE_TOE_QUE_HDR_BASE);
+
+ /* Write GLOBAL_QUEUE_THRESHOLD_REG */
+ threshold.bits32 = 0;
+ threshold.bits.swfq_empty = (TOE_SW_FREEQ_DESC_NUM > 256) ? 255 :
+ TOE_SW_FREEQ_DESC_NUM / 2;
+ threshold.bits.hwfq_empty = (TOE_HW_FREEQ_DESC_NUM > 256) ? 256 / 4 :
+ TOE_HW_FREEQ_DESC_NUM / 4;
+ threshold.bits.toe_class = (TOE_TOE_DESC_NUM > 256) ? 256 / 4 :
+ TOE_TOE_DESC_NUM / 4;
+ threshold.bits.intrq = (TOE_INTR_DESC_NUM > 256) ? 256 / 4 :
+ TOE_INTR_DESC_NUM / 4;
+ __raw_writel(threshold.bits32, toe->global_base + GLOBAL_QUEUE_THRESHOLD_REG);
+
+ /* Init skb size */
+ skb_size.bits.hw_skb_size = HW_RX_BUF_SIZE;
+ skb_size.bits.sw_skb_size = SW_RX_BUF_SIZE;
+ __raw_writel(skb_size.bits32, toe->global_base + GLOBAL_DMA_SKB_SIZE_REG);
+
+ toe_init_free_queue(toe);
+ toe_init_interrupt_config(toe);
+}
+
+static int gmac_init_eth(struct platform_device *pdev,
+ unsigned int num)
+{
+ struct gmac_private *gmac;
+ struct net_device *dev;
+ struct toe_private *toe = platform_get_drvdata(pdev);
+ struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data;
+
+ if (!pdata->bus_id[num])
+ return 0;
+
+ dev = alloc_etherdev(sizeof(*gmac));
+ if (dev == NULL) {
+ dev_err(&pdev->dev, "Can't allocate ethernet device #%d\n", num);
+ return -ENOMEM;
+ }
+
+ gmac = netdev_priv(dev);
+ dev->ml_priv = toe;
+ toe->net_dev[num] = dev;
+
+ gmac->base_addr = toe->global_base + TOE_GMAC_BASE(num);
+ gmac->dma_base_addr = toe->global_base + TOE_GMAC_DMA_BASE(num);
+ gmac->port_id = num;
+
+ dev->base_addr = (unsigned int) gmac->base_addr;
+ dev->irq = platform_get_irq(pdev, num);
+ dev->netdev_ops = &gemini_gmac_ops;
+ dev->watchdog_timeo = GMAC_DEV_TX_TIMEOUT;
+ dev->tx_queue_len = TOE_GMAC_SWTXQ_DESC_NUM;
+
+#ifdef DO_HW_CHKSUM
+ dev->features = NETIF_F_SG | NETIF_F_HW_CSUM;
+#ifdef ENABLE_TSO
+ dev->features |= NETIF_F_TSO;
+#endif
+#endif
+
+ toe_init_swtx_queue(dev);
+ toe_init_default_queue(dev);
+
+ gmac_get_mac_address(dev);
+
+ /* TODO: Do we need this? */
+ __raw_writel(0x55aa55aa, gmac->base_addr + GMAC_STA_ADD2);
+
+ if (register_netdev(dev))
+ return -1;
+
+ gmac->phydev = phy_connect(dev, pdata->bus_id[num], &gmac_get_phy_status, 0,
+ pdata->interface[num]);
+ if (IS_ERR(gmac->phydev))
+ return PTR_ERR(gmac->phydev);
+
+ gmac->phydev->supported &= PHY_GBIT_FEATURES | SUPPORTED_Pause;
+ gmac->phydev->advertising = gmac->phydev->supported;
+
+ return 0;
+}
+
+static int gmac_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct toe_private *toe;
+ int retval;
+
+ if (!pdev->dev.platform_data)
+ return -EINVAL;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "can't get device resources\n");
+ return -ENODEV;
+ }
+
+ toe = kzalloc(sizeof(struct toe_private), GFP_KERNEL);
+ if (!toe)
+ return -ENOMEM;
+
+ toe->dev = &pdev->dev;
+
+ toe->global_base = ioremap(res->start, resource_size(res));
+ if (!toe->global_base) {
+ dev_err(toe->dev, "ioremap failed\n");
+ retval = -EIO;
+ goto err_data;
+ }
+
+ platform_set_drvdata(pdev, toe);
+
+ mac_init_drv(toe);
+
+ INIT_WORK(&toe->freq_work, fill_free_q_worker);
+ spin_lock_init(&toe->freeq_lock);
+
+ retval = gmac_init_eth(pdev, GMAC_PORT0);
+ if (retval)
+ goto err_unmap;
+ retval = gmac_init_eth(pdev, GMAC_PORT1);
+ if (retval)
+ goto err_unmap;
+
+ dev_info(&pdev->dev, SL351x_DRIVER_NAME "\n");
+
+ return 0;
+
+err_unmap:
+ iounmap(toe->global_base);
+err_data:
+ kfree(toe);
+ return retval;
+}
+
+static int gmac_remove(struct platform_device *pdev)
+{
+ struct toe_private *toe = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < 2; i++)
+ if (toe->net_dev[i]) {
+ unregister_netdev(toe->net_dev[i]);
+ kfree(toe->net_dev[i]);
+ }
+
+ iounmap(toe->global_base);
+
+ kfree(toe);
+
+ return 0;
+}
+
+static struct platform_driver gemini_gmac_driver = {
+ .probe = gmac_probe,
+ .remove = gmac_remove,
+ .driver = {
+ .name = "gemini-gmac",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init gemini_gmac_init(void)
+{
+ return platform_driver_register(&gemini_gmac_driver);
+}
+
+static void __exit gemini_gmac_exit(void)
+{
+ platform_driver_unregister(&gemini_gmac_driver);
+}
+
+module_init(gemini_gmac_init);
+module_exit(gemini_gmac_exit);
+
+MODULE_AUTHOR("Paulius Zaleckas");
+MODULE_DESCRIPTION("Ethernet device driver for Gemini SoC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gemini-gmac");
--- /dev/null
+++ b/drivers/net/gemini_negmac/gm_gmac.h
@@ -0,0 +1,1489 @@
+/*
+ * Register definitions for Gemini Ethernet device driver.
+ *
+ * Copyright (C) 2006, Storlink, Corp.
+ * Copyright (C) 2008-2009, Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * 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.
+ */
+#ifndef _GMAC_SL351x_H
+#define _GMAC_SL351x_H
+#include <linux/skbuff.h>
+
+#define _PACKED_ __attribute__ ((aligned(1), packed))
+
+#ifndef BIT
+#define BIT(x) (1 << (x))
+#endif
+
+#define REG32(addr) (*(volatile unsigned long * const)(addr))
+
+/* Define frame size */
+#define GMAC_MAX_ETH_FRAME_SIZE 1514
+#define GMAC_TX_BUF_SIZE ((GMAC_MAX_ETH_FRAME_SIZE + 31) & (~31))
+
+#define SW_RX_BUF_SIZE 1536
+#define HW_RX_BUF_SIZE 1536
+
+#define GMAC_DEV_TX_TIMEOUT (10*HZ)
+#define SKB_RESERVE_BYTES 16
+
+/*
+ * Base Registers
+ */
+#define TOE_NONTOE_QUE_HDR_BASE 0x2000
+#define TOE_TOE_QUE_HDR_BASE 0x3000
+#define TOE_V_BIT_BASE 0x4000
+#define TOE_A_BIT_BASE 0x6000
+#define TOE_GMAC_DMA_BASE(x) (0x8000 + 0x4000 * (x))
+#define TOE_GMAC_BASE(x) (0xA000 + 0x4000 * (x))
+
+/*
+ * Queue ID
+ */
+#define TOE_SW_FREE_QID 0x00
+#define TOE_HW_FREE_QID 0x01
+#define TOE_GMAC0_SW_TXQ0_QID 0x02
+#define TOE_GMAC0_SW_TXQ1_QID 0x03
+#define TOE_GMAC0_SW_TXQ2_QID 0x04
+#define TOE_GMAC0_SW_TXQ3_QID 0x05
+#define TOE_GMAC0_SW_TXQ4_QID 0x06
+#define TOE_GMAC0_SW_TXQ5_QID 0x07
+#define TOE_GMAC0_HW_TXQ0_QID 0x08
+#define TOE_GMAC0_HW_TXQ1_QID 0x09
+#define TOE_GMAC0_HW_TXQ2_QID 0x0A
+#define TOE_GMAC0_HW_TXQ3_QID 0x0B
+#define TOE_GMAC1_SW_TXQ0_QID 0x12
+#define TOE_GMAC1_SW_TXQ1_QID 0x13
+#define TOE_GMAC1_SW_TXQ2_QID 0x14
+#define TOE_GMAC1_SW_TXQ3_QID 0x15
+#define TOE_GMAC1_SW_TXQ4_QID 0x16
+#define TOE_GMAC1_SW_TXQ5_QID 0x17
+#define TOE_GMAC1_HW_TXQ0_QID 0x18
+#define TOE_GMAC1_HW_TXQ1_QID 0x19
+#define TOE_GMAC1_HW_TXQ2_QID 0x1A
+#define TOE_GMAC1_HW_TXQ3_QID 0x1B
+#define TOE_GMAC0_DEFAULT_QID 0x20
+#define TOE_GMAC1_DEFAULT_QID 0x21
+#define TOE_CLASSIFICATION_QID(x) (0x22 + x) // 0x22 ~ 0x2F
+#define TOE_TOE_QID(x) (0x40 + x) // 0x40 ~ 0x7F
+
+/*
+ * TOE DMA Queue Number should be 2^n, n = 6...12
+ * TOE DMA Queues are the following queue types:
+ * SW Free Queue, HW Free Queue,
+ * GMAC 0/1 SW TX Q0-5, and GMAC 0/1 HW TX Q0-5
+ * They have same descriptor numbers.
+ * The base address and descriptor number are configured at
+ * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004)
+ */
+#define TOE_SW_FREEQ_DESC_POWER 8
+#define TOE_SW_FREEQ_DESC_NUM (1<<TOE_SW_FREEQ_DESC_POWER)
+#define TOE_HW_FREEQ_DESC_POWER 8
+#define TOE_HW_FREEQ_DESC_NUM (1<<TOE_HW_FREEQ_DESC_POWER)
+#define TOE_GMAC_SWTXQ_DESC_POWER 8
+#define TOE_GMAC_SWTXQ_DESC_NUM (1<<TOE_GMAC_SWTXQ_DESC_POWER)
+#define TOE_GMAC_HWTXQ_DESC_POWER 8
+#define TOE_GMAC_HWTXQ_DESC_NUM (1<<TOE_GMAC_HWTXQ_DESC_POWER)
+#define TOE_DEFAULT_Q_DESC_POWER 8
+#define TOE_DEFAULT_Q_DESC_NUM (1<<TOE_DEFAULT_Q_DESC_POWER)
+#define TOE_TOE_DESC_POWER 8
+#define TOE_TOE_DESC_NUM (1<<TOE_TOE_DESC_POWER)
+#define TOE_CLASS_DESC_POWER 8
+#define TOE_CLASS_DESC_NUM (1<<TOE_CLASS_DESC_POWER)
+#define TOE_INTR_DESC_POWER 8
+#define TOE_INTR_DESC_NUM (1<<TOE_INTR_DESC_POWER)
+
+#define TOE_TOE_QUEUE_MAX 64
+#define TOE_TOE_QUEUE_NUM 64
+#define TOE_CLASS_QUEUE_MAX 14
+#define TOE_CLASS_QUEUE_NUM 14
+#define TOE_INTR_QUEUE_MAX 4
+#define TOE_INTR_QUEUE_NUM 4
+#define TOE_SW_TXQ_MAX 6
+#define TOE_SW_TXQ_NUM 1
+#define TOE_HW_TXQ_MAX 4
+#define TOE_HW_TXQ_NUM 4
+
+#define RWPTR_ADVANCE_ONE(x, max) ((x == (max -1)) ? 0 : x+1)
+#define RWPTR_RECEDE_ONE(x, max) ((x == 0) ? (max -1) : x-1)
+#define SET_WPTR(addr, data) (*(volatile u16 * const)((u32)(addr) + 2) = (u16)data)
+#define SET_RPTR(addr, data) (*(volatile u16 * const)((u32)(addr)) = (u16)data)
+
+/*
+ * Global registers
+ * #define TOE_GLOBAL_BASE (TOE_BASE + 0x0000)
+ * Base 0x60000000
+ */
+#define GLOBAL_TOE_VERSION_REG 0x0000
+#define GLOBAL_SW_FREEQ_BASE_SIZE_REG 0x0004
+#define GLOBAL_HW_FREEQ_BASE_SIZE_REG 0x0008
+#define GLOBAL_DMA_SKB_SIZE_REG 0x0010
+#define GLOBAL_SWFQ_RWPTR_REG 0x0014
+#define GLOBAL_HWFQ_RWPTR_REG 0x0018
+#define GLOBAL_INTERRUPT_STATUS_0_REG 0x0020
+#define GLOBAL_INTERRUPT_ENABLE_0_REG 0x0024
+#define GLOBAL_INTERRUPT_SELECT_0_REG 0x0028
+#define GLOBAL_INTERRUPT_STATUS_1_REG 0x0030
+#define GLOBAL_INTERRUPT_ENABLE_1_REG 0x0034
+#define GLOBAL_INTERRUPT_SELECT_1_REG 0x0038
+#define GLOBAL_INTERRUPT_STATUS_2_REG 0x0040
+#define GLOBAL_INTERRUPT_ENABLE_2_REG 0x0044
+#define GLOBAL_INTERRUPT_SELECT_2_REG 0x0048
+#define GLOBAL_INTERRUPT_STATUS_3_REG 0x0050
+#define GLOBAL_INTERRUPT_ENABLE_3_REG 0x0054
+#define GLOBAL_INTERRUPT_SELECT_3_REG 0x0058
+#define GLOBAL_INTERRUPT_STATUS_4_REG 0x0060
+#define GLOBAL_INTERRUPT_ENABLE_4_REG 0x0064
+#define GLOBAL_INTERRUPT_SELECT_4_REG 0x0068
+#define GLOBAL_HASH_TABLE_BASE_REG 0x006C
+#define GLOBAL_QUEUE_THRESHOLD_REG 0x0070
+
+/*
+ * GMAC 0/1 DMA/TOE register
+ * #define TOE_GMAC0_DMA_BASE (TOE_BASE + 0x8000)
+ * #define TOE_GMAC1_DMA_BASE (TOE_BASE + 0xC000)
+ * Base 0x60008000 or 0x6000C000
+ */
+#define GMAC_DMA_CTRL_REG 0x0000
+#define GMAC_TX_WEIGHTING_CTRL_0_REG 0x0004
+#define GMAC_TX_WEIGHTING_CTRL_1_REG 0x0008
+#define GMAC_SW_TX_QUEUE0_PTR_REG 0x000C
+#define GMAC_SW_TX_QUEUE1_PTR_REG 0x0010
+#define GMAC_SW_TX_QUEUE2_PTR_REG 0x0014
+#define GMAC_SW_TX_QUEUE3_PTR_REG 0x0018
+#define GMAC_SW_TX_QUEUE4_PTR_REG 0x001C
+#define GMAC_SW_TX_QUEUE5_PTR_REG 0x0020
+#define GMAC_HW_TX_QUEUE0_PTR_REG 0x0024
+#define GMAC_HW_TX_QUEUE1_PTR_REG 0x0028
+#define GMAC_HW_TX_QUEUE2_PTR_REG 0x002C
+#define GMAC_HW_TX_QUEUE3_PTR_REG 0x0030
+#define GMAC_DMA_TX_FIRST_DESC_REG 0x0038
+#define GMAC_DMA_TX_CURR_DESC_REG 0x003C
+#define GMAC_DMA_TX_DESC_WORD0_REG 0x0040
+#define GMAC_DMA_TX_DESC_WORD1_REG 0x0044
+#define GMAC_DMA_TX_DESC_WORD2_REG 0x0048
+#define GMAC_DMA_TX_DESC_WORD3_REG 0x004C
+#define GMAC_SW_TX_QUEUE_BASE_REG 0x0050
+#define GMAC_HW_TX_QUEUE_BASE_REG 0x0054
+#define GMAC_DMA_RX_FIRST_DESC_REG 0x0058
+#define GMAC_DMA_RX_CURR_DESC_REG 0x005C
+#define GMAC_DMA_RX_DESC_WORD0_REG 0x0060
+#define GMAC_DMA_RX_DESC_WORD1_REG 0x0064
+#define GMAC_DMA_RX_DESC_WORD2_REG 0x0068
+#define GMAC_DMA_RX_DESC_WORD3_REG 0x006C
+#define GMAC_HASH_ENGINE_REG0 0x0070
+#define GMAC_HASH_ENGINE_REG1 0x0074
+/* matching rule 0 Control register 0 */
+#define GMAC_MR0CR0 0x0078
+#define GMAC_MR0CR1 0x007C
+#define GMAC_MR0CR2 0x0080
+#define GMAC_MR1CR0 0x0084
+#define GMAC_MR1CR1 0x0088
+#define GMAC_MR1CR2 0x008C
+#define GMAC_MR2CR0 0x0090
+#define GMAC_MR2CR1 0x0094
+#define GMAC_MR2CR2 0x0098
+#define GMAC_MR3CR0 0x009C
+#define GMAC_MR3CR1 0x00A0
+#define GMAC_MR3CR2 0x00A4
+/* Support Protocol Regsister 0 */
+#define GMAC_SPR0 0x00A8
+#define GMAC_SPR1 0x00AC
+#define GMAC_SPR2 0x00B0
+#define GMAC_SPR3 0x00B4
+#define GMAC_SPR4 0x00B8
+#define GMAC_SPR5 0x00BC
+#define GMAC_SPR6 0x00C0
+#define GMAC_SPR7 0x00C4
+/* GMAC Hash/Rx/Tx AHB Weighting register */
+#define GMAC_AHB_WEIGHT_REG 0x00C8
+
+/*
+ * TOE GMAC 0/1 register
+ * #define TOE_GMAC0_BASE (TOE_BASE + 0xA000)
+ * #define TOE_GMAC1_BASE (TOE_BASE + 0xE000)
+ * Base 0x6000A000 or 0x6000E000
+ */
+enum GMAC_REGISTER {
+ GMAC_STA_ADD0 = 0x0000,
+ GMAC_STA_ADD1 = 0x0004,
+ GMAC_STA_ADD2 = 0x0008,
+ GMAC_RX_FLTR = 0x000c,
+ GMAC_MCAST_FIL0 = 0x0010,
+ GMAC_MCAST_FIL1 = 0x0014,
+ GMAC_CONFIG0 = 0x0018,
+ GMAC_CONFIG1 = 0x001c,
+ GMAC_CONFIG2 = 0x0020,
+ GMAC_CONFIG3 = 0x0024,
+ GMAC_RESERVED = 0x0028,
+ GMAC_STATUS = 0x002c,
+ GMAC_IN_DISCARDS= 0x0030,
+ GMAC_IN_ERRORS = 0x0034,
+ GMAC_IN_MCAST = 0x0038,
+ GMAC_IN_BCAST = 0x003c,
+ GMAC_IN_MAC1 = 0x0040, /* for STA 1 MAC Address */
+ GMAC_IN_MAC2 = 0x0044 /* for STA 2 MAC Address */
+};
+
+/*
+ * DMA Queues description Ring Base Address/Size Register (offset 0x0004)
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int base_size;
+} DMA_Q_BASE_SIZE_T;
+#define DMA_Q_BASE_MASK (~0x0f)
+
+/*
+ * DMA SKB Buffer register (offset 0x0008)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_0008 {
+ unsigned int sw_skb_size : 16; /* SW Free poll SKB Size */
+ unsigned int hw_skb_size : 16; /* HW Free poll SKB Size */
+ } bits;
+} DMA_SKB_SIZE_T;
+
+/*
+ * DMA SW Free Queue Read/Write Pointer Register (offset 0x000C)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_000c {
+ unsigned int rptr : 16; /* Read Ptr, RO */
+ unsigned int wptr : 16; /* Write Ptr, RW */
+ } bits;
+} DMA_RWPTR_T;
+
+/*
+ * DMA HW Free Queue Read/Write Pointer Register (offset 0x0010)
+ * see DMA_RWPTR_T structure
+ */
+
+/*
+ * Interrupt Status Register 0 (offset 0x0020)
+ * Interrupt Mask Register 0 (offset 0x0024)
+ * Interrupt Select Register 0 (offset 0x0028)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_0020 {
+ /* GMAC0 SW Tx Queue 0 EOF Interrupt */
+ unsigned int swtq00_eof : 1;
+ unsigned int swtq01_eof : 1;
+ unsigned int swtq02_eof : 1;
+ unsigned int swtq03_eof : 1;
+ unsigned int swtq04_eof : 1;
+ unsigned int swtq05_eof : 1;
+ /* GMAC1 SW Tx Queue 0 EOF Interrupt */
+ unsigned int swtq10_eof : 1;
+ unsigned int swtq11_eof : 1;
+ unsigned int swtq12_eof : 1;
+ unsigned int swtq13_eof : 1;
+ unsigned int swtq14_eof : 1;
+ unsigned int swtq15_eof : 1;
+ /* GMAC0 SW Tx Queue 0 Finish Interrupt */
+ unsigned int swtq00_fin : 1;
+ unsigned int swtq01_fin : 1;
+ unsigned int swtq02_fin : 1;
+ unsigned int swtq03_fin : 1;
+ unsigned int swtq04_fin : 1;
+ unsigned int swtq05_fin : 1;
+ /* GMAC1 SW Tx Queue 0 Finish Interrupt */
+ unsigned int swtq10_fin : 1;
+ unsigned int swtq11_fin : 1;
+ unsigned int swtq12_fin : 1;
+ unsigned int swtq13_fin : 1;
+ unsigned int swtq14_fin : 1;
+ unsigned int swtq15_fin : 1;
+ /* GMAC0 Rx Descriptor Protocol Error */
+ unsigned int rxPerr0 : 1;
+ /* GMAC0 AHB Bus Error while Rx */
+ unsigned int rxDerr0 : 1;
+ /* GMAC1 Rx Descriptor Protocol Error */
+ unsigned int rxPerr1 : 1;
+ /* GMAC1 AHB Bus Error while Rx */
+ unsigned int rxDerr1 : 1;
+ /* GMAC0 Tx Descriptor Protocol Error */
+ unsigned int txPerr0 : 1;
+ /* GMAC0 AHB Bus Error while Tx */
+ unsigned int txDerr0 : 1;
+ /* GMAC1 Tx Descriptor Protocol Error */
+ unsigned int txPerr1 : 1;
+ /* GMAC1 AHB Bus Error while Tx */
+ unsigned int txDerr1 : 1;
+ } bits;
+} INTR_REG0_T;
+
+#define GMAC1_TXDERR_INT_BIT BIT(31)
+#define GMAC1_TXPERR_INT_BIT BIT(30)
+#define GMAC0_TXDERR_INT_BIT BIT(29)
+#define GMAC0_TXPERR_INT_BIT BIT(28)
+#define GMAC1_RXDERR_INT_BIT BIT(27)
+#define GMAC1_RXPERR_INT_BIT BIT(26)
+#define GMAC0_RXDERR_INT_BIT BIT(25)
+#define GMAC0_RXPERR_INT_BIT BIT(24)
+#define GMAC1_SWTQ15_FIN_INT_BIT BIT(23)
+#define GMAC1_SWTQ14_FIN_INT_BIT BIT(22)
+#define GMAC1_SWTQ13_FIN_INT_BIT BIT(21)
+#define GMAC1_SWTQ12_FIN_INT_BIT BIT(20)
+#define GMAC1_SWTQ11_FIN_INT_BIT BIT(19)
+#define GMAC1_SWTQ10_FIN_INT_BIT BIT(18)
+#define GMAC0_SWTQ05_FIN_INT_BIT BIT(17)
+#define GMAC0_SWTQ04_FIN_INT_BIT BIT(16)
+#define GMAC0_SWTQ03_FIN_INT_BIT BIT(15)
+#define GMAC0_SWTQ02_FIN_INT_BIT BIT(14)
+#define GMAC0_SWTQ01_FIN_INT_BIT BIT(13)
+#define GMAC0_SWTQ00_FIN_INT_BIT BIT(12)
+#define GMAC1_SWTQ15_EOF_INT_BIT BIT(11)
+#define GMAC1_SWTQ14_EOF_INT_BIT BIT(10)
+#define GMAC1_SWTQ13_EOF_INT_BIT BIT(9)
+#define GMAC1_SWTQ12_EOF_INT_BIT BIT(8)
+#define GMAC1_SWTQ11_EOF_INT_BIT BIT(7)
+#define GMAC1_SWTQ10_EOF_INT_BIT BIT(6)
+#define GMAC0_SWTQ05_EOF_INT_BIT BIT(5)
+#define GMAC0_SWTQ04_EOF_INT_BIT BIT(4)
+#define GMAC0_SWTQ03_EOF_INT_BIT BIT(3)
+#define GMAC0_SWTQ02_EOF_INT_BIT BIT(2)
+#define GMAC0_SWTQ01_EOF_INT_BIT BIT(1)
+#define GMAC0_SWTQ00_EOF_INT_BIT BIT(0)
+
+/*
+ * Interrupt Status Register 1 (offset 0x0030)
+ * Interrupt Mask Register 1 (offset 0x0034)
+ * Interrupt Select Register 1 (offset 0x0038)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_0030 {
+ unsigned int default_q0_eof : 1; /* Default Queue 0 EOF Interrupt */
+ unsigned int default_q1_eof : 1; /* Default Queue 1 EOF Interrupt */
+ unsigned int class_rx : 14; /* Classification Queue Rx Interrupt */
+ unsigned int hwtq00_eof : 1; /* GMAC0 HW Tx Queue0 EOF Interrupt */
+ unsigned int hwtq01_eof : 1; /* GMAC0 HW Tx Queue1 EOF Interrupt */
+ unsigned int hwtq02_eof : 1; /* GMAC0 HW Tx Queue2 EOF Interrupt */
+ unsigned int hwtq03_eof : 1; /* GMAC0 HW Tx Queue3 EOF Interrupt */
+ unsigned int hwtq10_eof : 1; /* GMAC1 HW Tx Queue0 EOF Interrupt */
+ unsigned int hwtq11_eof : 1; /* GMAC1 HW Tx Queue1 EOF Interrupt */
+ unsigned int hwtq12_eof : 1; /* GMAC1 HW Tx Queue2 EOF Interrupt */
+ unsigned int hwtq13_eof : 1; /* GMAC1 HW Tx Queue3 EOF Interrupt */
+ unsigned int toe_iq0_intr : 1; /* TOE Interrupt Queue 0 with Interrupts */
+ unsigned int toe_iq1_intr : 1; /* TOE Interrupt Queue 1 with Interrupts */
+ unsigned int toe_iq2_intr : 1; /* TOE Interrupt Queue 2 with Interrupts */
+ unsigned int toe_iq3_intr : 1; /* TOE Interrupt Queue 3 with Interrupts */
+ unsigned int toe_iq0_full : 1; /* TOE Interrupt Queue 0 Full Interrupt */
+ unsigned int toe_iq1_full : 1; /* TOE Interrupt Queue 1 Full Interrupt */
+ unsigned int toe_iq2_full : 1; /* TOE Interrupt Queue 2 Full Interrupt */
+ unsigned int toe_iq3_full : 1; /* TOE Interrupt Queue 3 Full Interrupt */
+ } bits;
+} INTR_REG1_T;
+
+#define TOE_IQ3_FULL_INT_BIT BIT(31)
+#define TOE_IQ2_FULL_INT_BIT BIT(30)
+#define TOE_IQ1_FULL_INT_BIT BIT(29)
+#define TOE_IQ0_FULL_INT_BIT BIT(28)
+#define TOE_IQ3_INT_BIT BIT(27)
+#define TOE_IQ2_INT_BIT BIT(26)
+#define TOE_IQ1_INT_BIT BIT(25)
+#define TOE_IQ0_INT_BIT BIT(24)
+#define GMAC1_HWTQ13_EOF_INT_BIT BIT(23)
+#define GMAC1_HWTQ12_EOF_INT_BIT BIT(22)
+#define GMAC1_HWTQ11_EOF_INT_BIT BIT(21)
+#define GMAC1_HWTQ10_EOF_INT_BIT BIT(20)
+#define GMAC0_HWTQ03_EOF_INT_BIT BIT(19)
+#define GMAC0_HWTQ02_EOF_INT_BIT BIT(18)
+#define GMAC0_HWTQ01_EOF_INT_BIT BIT(17)
+#define GMAC0_HWTQ00_EOF_INT_BIT BIT(16)
+#define CLASS_RX_INT_BIT(x) BIT((x + 2))
+#define DEFAULT_Q1_INT_BIT BIT(1)
+#define DEFAULT_Q0_INT_BIT BIT(0)
+
+#define TOE_IQ_INT_BITS (TOE_IQ0_INT_BIT | TOE_IQ1_INT_BIT | \
+ TOE_IQ2_INT_BIT | TOE_IQ3_INT_BIT)
+#define TOE_IQ_FULL_BITS (TOE_IQ0_FULL_INT_BIT | TOE_IQ1_FULL_INT_BIT | \
+ TOE_IQ2_FULL_INT_BIT | TOE_IQ3_FULL_INT_BIT)
+#define TOE_IQ_ALL_BITS (TOE_IQ_INT_BITS | TOE_IQ_FULL_BITS)
+#define TOE_CLASS_RX_INT_BITS 0xfffc
+
+/*
+ * Interrupt Status Register 2 (offset 0x0040)
+ * Interrupt Mask Register 2 (offset 0x0044)
+ * Interrupt Select Register 2 (offset 0x0048)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_0040 {
+ unsigned int toe_q0_full : 1; // bit 0 TOE Queue 0 Full Interrupt
+ unsigned int toe_q1_full : 1; // bit 1 TOE Queue 1 Full Interrupt
+ unsigned int toe_q2_full : 1; // bit 2 TOE Queue 2 Full Interrupt
+ unsigned int toe_q3_full : 1; // bit 3 TOE Queue 3 Full Interrupt
+ unsigned int toe_q4_full : 1; // bit 4 TOE Queue 4 Full Interrupt
+ unsigned int toe_q5_full : 1; // bit 5 TOE Queue 5 Full Interrupt
+ unsigned int toe_q6_full : 1; // bit 6 TOE Queue 6 Full Interrupt
+ unsigned int toe_q7_full : 1; // bit 7 TOE Queue 7 Full Interrupt
+ unsigned int toe_q8_full : 1; // bit 8 TOE Queue 8 Full Interrupt
+ unsigned int toe_q9_full : 1; // bit 9 TOE Queue 9 Full Interrupt
+ unsigned int toe_q10_full : 1; // bit 10 TOE Queue 10 Full Interrupt
+ unsigned int toe_q11_full : 1; // bit 11 TOE Queue 11 Full Interrupt
+ unsigned int toe_q12_full : 1; // bit 12 TOE Queue 12 Full Interrupt
+ unsigned int toe_q13_full : 1; // bit 13 TOE Queue 13 Full Interrupt
+ unsigned int toe_q14_full : 1; // bit 14 TOE Queue 14 Full Interrupt
+ unsigned int toe_q15_full : 1; // bit 15 TOE Queue 15 Full Interrupt
+ unsigned int toe_q16_full : 1; // bit 16 TOE Queue 16 Full Interrupt
+ unsigned int toe_q17_full : 1; // bit 17 TOE Queue 17 Full Interrupt
+ unsigned int toe_q18_full : 1; // bit 18 TOE Queue 18 Full Interrupt
+ unsigned int toe_q19_full : 1; // bit 19 TOE Queue 19 Full Interrupt
+ unsigned int toe_q20_full : 1; // bit 20 TOE Queue 20 Full Interrupt
+ unsigned int toe_q21_full : 1; // bit 21 TOE Queue 21 Full Interrupt
+ unsigned int toe_q22_full : 1; // bit 22 TOE Queue 22 Full Interrupt
+ unsigned int toe_q23_full : 1; // bit 23 TOE Queue 23 Full Interrupt
+ unsigned int toe_q24_full : 1; // bit 24 TOE Queue 24 Full Interrupt
+ unsigned int toe_q25_full : 1; // bit 25 TOE Queue 25 Full Interrupt
+ unsigned int toe_q26_full : 1; // bit 26 TOE Queue 26 Full Interrupt
+ unsigned int toe_q27_full : 1; // bit 27 TOE Queue 27 Full Interrupt
+ unsigned int toe_q28_full : 1; // bit 28 TOE Queue 28 Full Interrupt
+ unsigned int toe_q29_full : 1; // bit 29 TOE Queue 29 Full Interrupt
+ unsigned int toe_q30_full : 1; // bit 30 TOE Queue 30 Full Interrupt
+ unsigned int toe_q31_full : 1; // bit 31 TOE Queue 31 Full Interrupt
+ } bits;
+} INTR_REG2_T;
+
+#define TOE_QL_FULL_INT_BIT(x) BIT(x)
+
+/*
+ * Interrupt Status Register 3 (offset 0x0050)
+ * Interrupt Mask Register 3 (offset 0x0054)
+ * Interrupt Select Register 3 (offset 0x0058)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_0050 {
+ unsigned int toe_q32_full : 1; // bit 32 TOE Queue 32 Full Interrupt
+ unsigned int toe_q33_full : 1; // bit 33 TOE Queue 33 Full Interrupt
+ unsigned int toe_q34_full : 1; // bit 34 TOE Queue 34 Full Interrupt
+ unsigned int toe_q35_full : 1; // bit 35 TOE Queue 35 Full Interrupt
+ unsigned int toe_q36_full : 1; // bit 36 TOE Queue 36 Full Interrupt
+ unsigned int toe_q37_full : 1; // bit 37 TOE Queue 37 Full Interrupt
+ unsigned int toe_q38_full : 1; // bit 38 TOE Queue 38 Full Interrupt
+ unsigned int toe_q39_full : 1; // bit 39 TOE Queue 39 Full Interrupt
+ unsigned int toe_q40_full : 1; // bit 40 TOE Queue 40 Full Interrupt
+ unsigned int toe_q41_full : 1; // bit 41 TOE Queue 41 Full Interrupt
+ unsigned int toe_q42_full : 1; // bit 42 TOE Queue 42 Full Interrupt
+ unsigned int toe_q43_full : 1; // bit 43 TOE Queue 43 Full Interrupt
+ unsigned int toe_q44_full : 1; // bit 44 TOE Queue 44 Full Interrupt
+ unsigned int toe_q45_full : 1; // bit 45 TOE Queue 45 Full Interrupt
+ unsigned int toe_q46_full : 1; // bit 46 TOE Queue 46 Full Interrupt
+ unsigned int toe_q47_full : 1; // bit 47 TOE Queue 47 Full Interrupt
+ unsigned int toe_q48_full : 1; // bit 48 TOE Queue 48 Full Interrupt
+ unsigned int toe_q49_full : 1; // bit 49 TOE Queue 49 Full Interrupt
+ unsigned int toe_q50_full : 1; // bit 50 TOE Queue 50 Full Interrupt
+ unsigned int toe_q51_full : 1; // bit 51 TOE Queue 51 Full Interrupt
+ unsigned int toe_q52_full : 1; // bit 52 TOE Queue 52 Full Interrupt
+ unsigned int toe_q53_full : 1; // bit 53 TOE Queue 53 Full Interrupt
+ unsigned int toe_q54_full : 1; // bit 54 TOE Queue 54 Full Interrupt
+ unsigned int toe_q55_full : 1; // bit 55 TOE Queue 55 Full Interrupt
+ unsigned int toe_q56_full : 1; // bit 56 TOE Queue 56 Full Interrupt
+ unsigned int toe_q57_full : 1; // bit 57 TOE Queue 57 Full Interrupt
+ unsigned int toe_q58_full : 1; // bit 58 TOE Queue 58 Full Interrupt
+ unsigned int toe_q59_full : 1; // bit 59 TOE Queue 59 Full Interrupt
+ unsigned int toe_q60_full : 1; // bit 60 TOE Queue 60 Full Interrupt
+ unsigned int toe_q61_full : 1; // bit 61 TOE Queue 61 Full Interrupt
+ unsigned int toe_q62_full : 1; // bit 62 TOE Queue 62 Full Interrupt
+ unsigned int toe_q63_full : 1; // bit 63 TOE Queue 63 Full Interrupt
+ } bits;
+} INTR_REG3_T;
+
+#define TOE_QH_FULL_INT_BIT(x) BIT(x-32)
+
+/*
+ * Interrupt Status Register 4 (offset 0x0060)
+ * Interrupt Mask Register 4 (offset 0x0064)
+ * Interrupt Select Register 4 (offset 0x0068)
+ */
+typedef union {
+ unsigned char byte;
+ struct bit_0060 {
+ unsigned char status_changed : 1; // Status Changed Intr for RGMII Mode
+ unsigned char rx_overrun : 1; // GMAC Rx FIFO overrun interrupt
+ unsigned char tx_pause_off : 1; // received pause off frame interrupt
+ unsigned char rx_pause_off : 1; // received pause off frame interrupt
+ unsigned char tx_pause_on : 1; // transmit pause on frame interrupt
+ unsigned char rx_pause_on : 1; // received pause on frame interrupt
+ unsigned char cnt_full : 1; // MIB counters half full interrupt
+ unsigned char reserved : 1; //
+ } _PACKED_ bits;
+} _PACKED_ GMAC_INTR_T;
+
+typedef union {
+ unsigned int bits32;
+ struct bit_0060_2 {
+ unsigned int swfq_empty : 1; // bit 0 Software Free Queue Empty Intr.
+ unsigned int hwfq_empty : 1; // bit 1 Hardware Free Queue Empty Intr.
+ unsigned int class_qf_int : 14; // bit 15:2 Classification Rx Queue13-0 Full Intr.
+ GMAC_INTR_T gmac0;
+ GMAC_INTR_T gmac1;
+ } bits;
+} INTR_REG4_T;
+
+#define GMAC1_RESERVED_INT_BIT BIT(31)
+#define GMAC1_MIB_INT_BIT BIT(30)
+#define GMAC1_RX_PAUSE_ON_INT_BIT BIT(29)
+#define GMAC1_TX_PAUSE_ON_INT_BIT BIT(28)
+#define GMAC1_RX_PAUSE_OFF_INT_BIT BIT(27)
+#define GMAC1_TX_PAUSE_OFF_INT_BIT BIT(26)
+#define GMAC1_RX_OVERRUN_INT_BIT BIT(25)
+#define GMAC1_STATUS_CHANGE_INT_BIT BIT(24)
+#define GMAC0_RESERVED_INT_BIT BIT(23)
+#define GMAC0_MIB_INT_BIT BIT(22)
+#define GMAC0_RX_PAUSE_ON_INT_BIT BIT(21)
+#define GMAC0_TX_PAUSE_ON_INT_BIT BIT(20)
+#define GMAC0_RX_PAUSE_OFF_INT_BIT BIT(19)
+#define GMAC0_TX_PAUSE_OFF_INT_BIT BIT(18)
+#define GMAC0_RX_OVERRUN_INT_BIT BIT(17)
+#define GMAC0_STATUS_CHANGE_INT_BIT BIT(16)
+#define CLASS_RX_FULL_INT_BIT(x) BIT((x+2))
+#define HWFQ_EMPTY_INT_BIT BIT(1)
+#define SWFQ_EMPTY_INT_BIT BIT(0)
+
+#if 1
+#define GMAC0_INT_BITS (GMAC0_MIB_INT_BIT)
+#define GMAC1_INT_BITS (GMAC1_MIB_INT_BIT)
+#else
+#define GMAC0_INT_BITS (GMAC0_RESERVED_INT_BIT | GMAC0_MIB_INT_BIT | \
+ GMAC0_RX_PAUSE_ON_INT_BIT | GMAC0_TX_PAUSE_ON_INT_BIT | \
+ GMAC0_RX_PAUSE_OFF_INT_BIT | GMAC0_TX_PAUSE_OFF_INT_BIT | \
+ GMAC0_RX_OVERRUN_INT_BIT | GMAC0_STATUS_CHANGE_INT_BIT)
+#define GMAC1_INT_BITS (GMAC1_RESERVED_INT_BIT | GMAC1_MIB_INT_BIT | \
+ GMAC1_RX_PAUSE_ON_INT_BIT | GMAC1_TX_PAUSE_ON_INT_BIT | \
+ GMAC1_RX_PAUSE_OFF_INT_BIT | GMAC1_TX_PAUSE_OFF_INT_BIT | \
+ GMAC1_RX_OVERRUN_INT_BIT | GMAC1_STATUS_CHANGE_INT_BIT)
+#endif
+
+#define CLASS_RX_FULL_INT_BITS 0xfffc
+
+/*
+ * GLOBAL_QUEUE_THRESHOLD_REG (offset 0x0070)
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_0070_2 {
+ unsigned int swfq_empty : 8; // 7:0 Software Free Queue Empty Threshold
+ unsigned int hwfq_empty : 8; // 15:8 Hardware Free Queue Empty Threshold
+ unsigned int intrq : 8; // 23:16
+ unsigned int toe_class : 8; // 31:24
+ } bits;
+} QUEUE_THRESHOLD_T;
+
+
+/*
+ * GMAC DMA Control Register
+ * GMAC0 offset 0x8000
+ * GMAC1 offset 0xC000
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8000 {
+ unsigned int td_bus : 2; // bit 1:0 Peripheral Bus Width
+ unsigned int td_burst_size : 2; // bit 3:2 TxDMA max burst size for every AHB request
+ unsigned int td_prot : 4; // bit 7:4 TxDMA protection control
+ unsigned int rd_bus : 2; // bit 9:8 Peripheral Bus Width
+ unsigned int rd_burst_size : 2; // bit 11:10 DMA max burst size for every AHB request
+ unsigned int rd_prot : 4; // bit 15:12 DMA Protection Control
+ unsigned int rd_insert_bytes : 2; // bit 17:16
+ unsigned int reserved : 10; // bit 27:18
+ unsigned int drop_small_ack : 1; // bit 28 1: Drop, 0: Accept
+ unsigned int loopback : 1; // bit 29 Loopback TxDMA to RxDMA
+ unsigned int td_enable : 1; // bit 30 Tx DMA Enable
+ unsigned int rd_enable : 1; // bit 31 Rx DMA Enable
+ } bits;
+} GMAC_DMA_CTRL_T;
+
+/*
+ * GMAC Tx Weighting Control Register 0
+ * GMAC0 offset 0x8004
+ * GMAC1 offset 0xC004
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8004 {
+ unsigned int hw_tq0 : 6; // bit 5:0 HW TX Queue 3
+ unsigned int hw_tq1 : 6; // bit 11:6 HW TX Queue 2
+ unsigned int hw_tq2 : 6; // bit 17:12 HW TX Queue 1
+ unsigned int hw_tq3 : 6; // bit 23:18 HW TX Queue 0
+ unsigned int reserved : 8; // bit 31:24
+ } bits;
+} GMAC_TX_WCR0_T; /* Weighting Control Register 0 */
+
+/*
+ * GMAC Tx Weighting Control Register 1
+ * GMAC0 offset 0x8008
+ * GMAC1 offset 0xC008
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8008 {
+ unsigned int sw_tq0 : 5; // bit 4:0 SW TX Queue 0
+ unsigned int sw_tq1 : 5; // bit 9:5 SW TX Queue 1
+ unsigned int sw_tq2 : 5; // bit 14:10 SW TX Queue 2
+ unsigned int sw_tq3 : 5; // bit 19:15 SW TX Queue 3
+ unsigned int sw_tq4 : 5; // bit 24:20 SW TX Queue 4
+ unsigned int sw_tq5 : 5; // bit 29:25 SW TX Queue 5
+ unsigned int reserved : 2; // bit 31:30
+ } bits;
+} GMAC_TX_WCR1_T; /* Weighting Control Register 1 */
+
+/*
+ * Queue Read/Write Pointer
+ * GMAC SW TX Queue 0~5 Read/Write Pointer register
+ * GMAC0 offset 0x800C ~ 0x8020
+ * GMAC1 offset 0xC00C ~ 0xC020
+ * GMAC HW TX Queue 0~3 Read/Write Pointer register
+ * GMAC0 offset 0x8024 ~ 0x8030
+ * GMAC1 offset 0xC024 ~ 0xC030
+ *
+ * see DMA_RWPTR_T structure
+ */
+
+/*
+ * GMAC DMA Tx First Description Address Register
+ * GMAC0 offset 0x8038
+ * GMAC1 offset 0xC038
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8038 {
+ unsigned int reserved : 3;
+ unsigned int td_busy : 1; // bit 3 1: TxDMA busy; 0: TxDMA idle
+ unsigned int td_first_des_ptr : 28; // bit 31:4 first descriptor address
+ } bits;
+} GMAC_TXDMA_FIRST_DESC_T;
+
+/*
+ * GMAC DMA Tx Current Description Address Register
+ * GMAC0 offset 0x803C
+ * GMAC1 offset 0xC03C
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_803C {
+ unsigned int reserved : 4;
+ unsigned int td_curr_desc_ptr : 28; // bit 31:4 current descriptor address
+ } bits;
+} GMAC_TXDMA_CURR_DESC_T;
+
+/*
+ * GMAC DMA Tx Description Word 0 Register
+ * GMAC0 offset 0x8040
+ * GMAC1 offset 0xC040
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8040 {
+ unsigned int buffer_size : 16; // bit 15:0 Transfer size
+ unsigned int desc_count : 6; // bit 21:16 number of descriptors used for the current frame
+ unsigned int status_tx_ok : 1; // bit 22 Tx Status, 1: Successful 0: Failed
+ unsigned int status_rvd : 6; // bit 28:23 Tx Status, Reserved bits
+ unsigned int perr : 1; // bit 29 protocol error during processing this descriptor
+ unsigned int derr : 1; // bit 30 data error during processing this descriptor
+ unsigned int reserved : 1; // bit 31
+ } bits;
+} GMAC_TXDESC_0_T;
+
+/*
+ * GMAC DMA Tx Description Word 1 Register
+ * GMAC0 offset 0x8044
+ * GMAC1 offset 0xC044
+ */
+typedef union {
+ unsigned int bits32;
+ struct txdesc_word1 {
+ unsigned int byte_count : 16; // bit 15: 0 Tx Frame Byte Count
+ unsigned int mtu_enable : 1; // bit 16 TSS segmentation use MTU setting
+ unsigned int ip_chksum : 1; // bit 17 IPV4 Header Checksum Enable
+ unsigned int ipv6_enable : 1; // bit 18 IPV6 Tx Enable
+ unsigned int tcp_chksum : 1; // bit 19 TCP Checksum Enable
+ unsigned int udp_chksum : 1; // bit 20 UDP Checksum Enable
+ unsigned int bypass_tss : 1; // bit 21
+ unsigned int ip_fixed_len : 1; // bit 22
+ unsigned int reserved : 9; // bit 31:23 Tx Flag, Reserved
+ } bits;
+} GMAC_TXDESC_1_T;
+
+#define TSS_IP_FIXED_LEN_BIT BIT(22)
+#define TSS_UDP_CHKSUM_BIT BIT(20)
+#define TSS_TCP_CHKSUM_BIT BIT(19)
+#define TSS_IPV6_ENABLE_BIT BIT(18)
+#define TSS_IP_CHKSUM_BIT BIT(17)
+#define TSS_MTU_ENABLE_BIT BIT(16)
+
+/*
+ * GMAC DMA Tx Description Word 2 Register
+ * GMAC0 offset 0x8048
+ * GMAC1 offset 0xC048
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int buf_adr;
+} GMAC_TXDESC_2_T;
+
+/*
+ * GMAC DMA Tx Description Word 3 Register
+ * GMAC0 offset 0x804C
+ * GMAC1 offset 0xC04C
+ */
+typedef union {
+ unsigned int bits32;
+ struct txdesc_word3 {
+ unsigned int mtu_size : 11; // bit 10: 0 Tx Frame Byte Count
+ unsigned int reserved : 18; // bit 28:11
+ unsigned int eofie : 1; // bit 29 End of frame interrupt enable
+ unsigned int sof_eof : 2; // bit 31:30 11: only one, 10: first, 01: last, 00: linking
+ } bits;
+} GMAC_TXDESC_3_T;
+#define SOF_EOF_BIT_MASK 0x3fffffff
+#define SOF_BIT 0x80000000
+#define EOF_BIT 0x40000000
+#define EOFIE_BIT BIT(29)
+#define MTU_SIZE_BIT_MASK 0x7ff
+
+/*
+ * GMAC Tx Descriptor
+ */
+typedef struct {
+ GMAC_TXDESC_0_T word0;
+ GMAC_TXDESC_1_T word1;
+ GMAC_TXDESC_2_T word2;
+ GMAC_TXDESC_3_T word3;
+} GMAC_TXDESC_T;
+
+/*
+ * GMAC DMA Rx First Description Address Register
+ * GMAC0 offset 0x8058
+ * GMAC1 offset 0xC058
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8058 {
+ unsigned int reserved : 3; // bit 2:0
+ unsigned int rd_busy : 1; // bit 3 1-RxDMA busy; 0-RxDMA idle
+ unsigned int rd_first_des_ptr : 28; // bit 31:4 first descriptor address
+ } bits;
+} GMAC_RXDMA_FIRST_DESC_T;
+
+/*
+ * GMAC DMA Rx Current Description Address Register
+ * GMAC0 offset 0x805C
+ * GMAC1 offset 0xC05C
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_805C {
+ unsigned int reserved : 4; // bit 3:0
+ unsigned int rd_curr_des_ptr : 28; // bit 31:4 current descriptor address
+ } bits;
+} GMAC_RXDMA_CURR_DESC_T;
+
+/*
+ * GMAC DMA Rx Description Word 0 Register
+ * GMAC0 offset 0x8060
+ * GMAC1 offset 0xC060
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8060 {
+ unsigned int buffer_size : 16; // bit 15:0 number of descriptors used for the current frame
+ unsigned int desc_count : 6; // bit 21:16 number of descriptors used for the current frame
+ unsigned int status : 4; // bit 24:22 Status of rx frame
+ unsigned int chksum_status : 3; // bit 28:26 Check Sum Status
+ unsigned int perr : 1; // bit 29 protocol error during processing this descriptor
+ unsigned int derr : 1; // bit 30 data error during processing this descriptor
+ unsigned int drop : 1; // bit 31 TOE/CIS Queue Full dropped packet to default queue
+ } bits;
+} GMAC_RXDESC_0_T;
+
+#define GMAC_RXDESC_0_T_derr BIT(30)
+#define GMAC_RXDESC_0_T_perr BIT(29)
+#define GMAC_RXDESC_0_T_chksum_status(x) BIT((x+26))
+#define GMAC_RXDESC_0_T_status(x) BIT((x+22))
+#define GMAC_RXDESC_0_T_desc_count(x) BIT((x+16))
+
+#define RX_CHKSUM_IP_UDP_TCP_OK 0
+#define RX_CHKSUM_IP_OK_ONLY 1
+#define RX_CHKSUM_NONE 2
+#define RX_CHKSUM_IP_ERR_UNKNOWN 4
+#define RX_CHKSUM_IP_ERR 5
+#define RX_CHKSUM_TCP_UDP_ERR 6
+#define RX_CHKSUM_NUM 8
+
+#define RX_STATUS_GOOD_FRAME 0
+#define RX_STATUS_TOO_LONG_GOOD_CRC 1
+#define RX_STATUS_RUNT_FRAME 2
+#define RX_STATUS_SFD_NOT_FOUND 3
+#define RX_STATUS_CRC_ERROR 4
+#define RX_STATUS_TOO_LONG_BAD_CRC 5
+#define RX_STATUS_ALIGNMENT_ERROR 6
+#define RX_STATUS_TOO_LONG_BAD_ALIGN 7
+#define RX_STATUS_RX_ERR 8
+#define RX_STATUS_DA_FILTERED 9
+#define RX_STATUS_BUFFER_FULL 10
+#define RX_STATUS_NUM 16
+
+
+/*
+ * GMAC DMA Rx Description Word 1 Register
+ * GMAC0 offset 0x8064
+ * GMAC1 offset 0xC064
+ */
+typedef union {
+ unsigned int bits32;
+ struct rxdesc_word1 {
+ unsigned int byte_count : 16; // bit 15: 0 Rx Frame Byte Count
+ unsigned int sw_id : 16; // bit 31:16 Software ID
+ } bits;
+} GMAC_RXDESC_1_T;
+
+/*
+ * GMAC DMA Rx Description Word 2 Register
+ * GMAC0 offset 0x8068
+ * GMAC1 offset 0xC068
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int buf_adr;
+} GMAC_RXDESC_2_T;
+
+#define RX_INSERT_NONE 0
+#define RX_INSERT_1_BYTE 1
+#define RX_INSERT_2_BYTE 2
+#define RX_INSERT_3_BYTE 3
+
+#define RX_INSERT_BYTES RX_INSERT_2_BYTE
+/*
+ * GMAC DMA Rx Description Word 3 Register
+ * GMAC0 offset 0x806C
+ * GMAC1 offset 0xC06C
+ */
+typedef union {
+ unsigned int bits32;
+ struct rxdesc_word3 {
+ unsigned int l3_offset : 8; // bit 7: 0 L3 data offset
+ unsigned int l4_offset : 8; // bit 15: 8 L4 data offset
+ unsigned int l7_offset : 8; // bit 23: 16 L7 data offset
+ unsigned int dup_ack : 1; // bit 24 Duplicated ACK detected
+ unsigned int abnormal : 1; // bit 25 abnormal case found
+ unsigned int option : 1; // bit 26 IPV4 option or IPV6 extension header
+ unsigned int out_of_seq : 1; // bit 27 Out of Sequence packet
+ unsigned int ctrl_flag : 1; // bit 28 Control Flag is present
+ unsigned int eofie : 1; // bit 29 End of frame interrupt enable
+ unsigned int sof_eof : 2; // bit 31:30 11: only one, 10: first, 01: last, 00: linking
+ } bits;
+} GMAC_RXDESC_3_T;
+
+/*
+ * GMAC Rx Descriptor
+ */
+typedef struct {
+ GMAC_RXDESC_0_T word0;
+ GMAC_RXDESC_1_T word1;
+ GMAC_RXDESC_2_T word2;
+ GMAC_RXDESC_3_T word3;
+} GMAC_RXDESC_T;
+
+/*
+ * GMAC Hash Engine Enable/Action Register 0 Offset Register
+ * GMAC0 offset 0x8070
+ * GMAC1 offset 0xC070
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8070 {
+ unsigned int mr0hel : 6; // bit 5:0 match rule 0 hash entry size
+ unsigned int mr0_action : 5; // bit 10:6 Matching Rule 0 action offset
+ unsigned int reserved0 : 4; // bit 14:11
+ unsigned int mr0en : 1; // bit 15 Enable Matching Rule 0
+ unsigned int mr1hel : 6; // bit 21:16 match rule 1 hash entry size
+ unsigned int mr1_action : 5; // bit 26:22 Matching Rule 1 action offset
+ unsigned int timing : 3; // bit 29:27
+ unsigned int reserved1 : 1; // bit 30
+ unsigned int mr1en : 1; // bit 31 Enable Matching Rule 1
+ } bits;
+} GMAC_HASH_ENABLE_REG0_T;
+
+/*
+ * GMAC Hash Engine Enable/Action Register 1 Offset Register
+ * GMAC0 offset 0x8074
+ * GMAC1 offset 0xC074
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8074 {
+ unsigned int mr2hel : 6; // bit 5:0 match rule 2 hash entry size
+ unsigned int mr2_action : 5; // bit 10:6 Matching Rule 2 action offset
+ unsigned int reserved2 : 4; // bit 14:11
+ unsigned int mr2en : 1; // bit 15 Enable Matching Rule 2
+ unsigned int mr3hel : 6; // bit 21:16 match rule 3 hash entry size
+ unsigned int mr3_action : 5; // bit 26:22 Matching Rule 3 action offset
+ unsigned int reserved1 : 4; // bit 30:27
+ unsigned int mr3en : 1; // bit 31 Enable Matching Rule 3
+ } bits;
+} GMAC_HASH_ENABLE_REG1_T;
+
+/*
+ * GMAC Matching Rule Control Register 0
+ * GMAC0 offset 0x8078
+ * GMAC1 offset 0xC078
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8078 {
+ unsigned int sprx : 8; // bit 7:0 Support Protocol Register 7:0
+ unsigned int reserved2 : 4; // bit 11:8
+ unsigned int tos_traffic : 1; // bit 12 IPV4 TOS or IPV6 Traffice Class
+ unsigned int flow_lable : 1; // bit 13 IPV6 Flow label
+ unsigned int ip_hdr_len : 1; // bit 14 IPV4 Header length
+ unsigned int ip_version : 1; // bit 15 0: IPV4, 1: IPV6
+ unsigned int reserved1 : 3; // bit 18:16
+ unsigned int pppoe : 1; // bit 19 PPPoE Session ID enable
+ unsigned int vlan : 1; // bit 20 VLAN ID enable
+ unsigned int ether_type : 1; // bit 21 Ethernet type enable
+ unsigned int sa : 1; // bit 22 MAC SA enable
+ unsigned int da : 1; // bit 23 MAC DA enable
+ unsigned int priority : 3; // bit 26:24 priority if multi-rules matched
+ unsigned int port : 1; // bit 27 PORT ID matching enable
+ unsigned int l7 : 1; // bit 28 L7 matching enable
+ unsigned int l4 : 1; // bit 29 L4 matching enable
+ unsigned int l3 : 1; // bit 30 L3 matching enable
+ unsigned int l2 : 1; // bit 31 L2 matching enable
+ } bits;
+} GMAC_MRxCR0_T;
+
+#define MR_L2_BIT BIT(31)
+#define MR_L3_BIT BIT(30)
+#define MR_L4_BIT BIT(29)
+#define MR_L7_BIT BIT(28)
+#define MR_PORT_BIT BIT(27)
+#define MR_PRIORITY_BIT BIT(26)
+#define MR_DA_BIT BIT(23)
+#define MR_SA_BIT BIT(22)
+#define MR_ETHER_TYPE_BIT BIT(21)
+#define MR_VLAN_BIT BIT(20)
+#define MR_PPPOE_BIT BIT(19)
+#define MR_IP_VER_BIT BIT(15)
+#define MR_IP_HDR_LEN_BIT BIT(14)
+#define MR_FLOW_LABLE_BIT BIT(13)
+#define MR_TOS_TRAFFIC_BIT BIT(12)
+#define MR_SPR_BIT(x) BIT(x)
+#define MR_SPR_BITS 0xff
+
+/*
+ * GMAC Matching Rule Control Register 1
+ * GMAC0 offset 0x807C
+ * GMAC1 offset 0xC07C
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_807C {
+ unsigned int l4_byte0_15 : 16; // bit 15: 0
+ unsigned int dip_netmask : 7; // bit 22:16 Dest IP net mask, number of mask bits
+ unsigned int dip : 1; // bit 23 Dest IP
+ unsigned int sip_netmask : 7; // bit 30:24 Srce IP net mask, number of mask bits
+ unsigned int sip : 1; // bit 31 Srce IP
+ } bits;
+} GMAC_MRxCR1_T;
+
+/*
+ * GMAC Matching Rule Control Register 2
+ * GMAC0 offset 0x8080
+ * GMAC1 offset 0xC080
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_8080 {
+ unsigned int l7_byte0_23 : 24; // bit 23:0
+ unsigned int l4_byte16_24 : 8; // bit 31: 24
+ } bits;
+} GMAC_MRxCR2_T;
+
+/*
+ * GMAC Support registers
+ * GMAC0 offset 0x80A8
+ * GMAC1 offset 0xC0A8
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_80A8 {
+ unsigned int protocol : 8; // bit 7:0 Supported protocol
+ unsigned int swap : 3; // bit 10:8 Swap
+ unsigned int reserved : 21; // bit 31:11
+ } bits;
+} GMAC_SPR_T;
+
+/*
+ * GMAC_AHB_WEIGHT registers
+ * GMAC0 offset 0x80C8
+ * GMAC1 offset 0xC0C8
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_80C8 {
+ unsigned int hash_weight : 5; // 4:0
+ unsigned int rx_weight : 5; // 9:5
+ unsigned int tx_weight : 5; // 14:10
+ unsigned int pre_req : 5; // 19:15 Rx Data Pre Request FIFO Threshold
+ unsigned int tqDV_threshold : 5; // 24:20 DMA TqCtrl to Start tqDV FIFO Threshold
+ unsigned int reserved : 7; // 31:25
+ } bits;
+} GMAC_AHB_WEIGHT_T;
+
+/*
+ * the register structure of GMAC
+ */
+
+/*
+ * GMAC RX FLTR
+ * GMAC0 Offset 0xA00C
+ * GMAC1 Offset 0xE00C
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit1_000c {
+ unsigned int unicast : 1; /* enable receive of unicast frames that are sent to STA address */
+ unsigned int multicast : 1; /* enable receive of multicast frames that pass multicast filter */
+ unsigned int broadcast : 1; /* enable receive of broadcast frames */
+ unsigned int promiscuous : 1; /* enable receive of all frames */
+ unsigned int error : 1; /* enable receive of all error frames */
+ unsigned int : 27;
+ } bits;
+} GMAC_RX_FLTR_T;
+
+/*
+ * GMAC Configuration 0
+ * GMAC0 Offset 0xA018
+ * GMAC1 Offset 0xE018
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit1_0018 {
+ unsigned int dis_tx : 1; /* 0: disable transmit */
+ unsigned int dis_rx : 1; /* 1: disable receive */
+ unsigned int loop_back : 1; /* 2: transmit data loopback enable */
+ unsigned int flow_ctrl : 1; /* 3: flow control also trigged by Rx queues */
+ unsigned int adj_ifg : 4; /* 4-7: adjust IFG from 96+/-56 */
+ unsigned int max_len : 3; /* 8-10 maximum receive frame length allowed */
+ unsigned int dis_bkoff : 1; /* 11: disable back-off function */
+ unsigned int dis_col : 1; /* 12: disable 16 collisions abort function */
+ unsigned int sim_test : 1; /* 13: speed up timers in simulation */
+ unsigned int rx_fc_en : 1; /* 14: RX flow control enable */
+ unsigned int tx_fc_en : 1; /* 15: TX flow control enable */
+ unsigned int rgmii_en : 1; /* 16: RGMII in-band status enable */
+ unsigned int ipv4_rx_chksum : 1; /* 17: IPv4 RX Checksum enable */
+ unsigned int ipv6_rx_chksum : 1; /* 18: IPv6 RX Checksum enable */
+ unsigned int rx_tag_remove : 1; /* 19: Remove Rx VLAN tag */
+ unsigned int rgmm_edge : 1; // 20
+ unsigned int rxc_inv : 1; // 21
+ unsigned int ipv6_exthdr_order : 1; // 22
+ unsigned int rx_err_detect : 1; // 23
+ unsigned int port0_chk_hwq : 1; // 24
+ unsigned int port1_chk_hwq : 1; // 25
+ unsigned int port0_chk_toeq : 1; // 26
+ unsigned int port1_chk_toeq : 1; // 27
+ unsigned int port0_chk_classq : 1; // 28
+ unsigned int port1_chk_classq : 1; // 29
+ unsigned int reserved : 2; // 31
+ } bits;
+} GMAC_CONFIG0_T;
+
+/*
+ * GMAC Configuration 1
+ * GMAC0 Offset 0xA01C
+ * GMAC1 Offset 0xE01C
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit1_001c {
+ unsigned int set_threshold : 8; /* flow control set threshold */
+ unsigned int rel_threshold : 8; /* flow control release threshold */
+ unsigned int reserved : 16;
+ } bits;
+} GMAC_CONFIG1_T;
+
+#define GMAC_FLOWCTRL_SET_MAX 32
+#define GMAC_FLOWCTRL_SET_MIN 0
+#define GMAC_FLOWCTRL_RELEASE_MAX 32
+#define GMAC_FLOWCTRL_RELEASE_MIN 0
+
+/*
+ * GMAC Configuration 2
+ * GMAC0 Offset 0xA020
+ * GMAC1 Offset 0xE020
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit1_0020 {
+ unsigned int set_threshold : 16; /* flow control set threshold */
+ unsigned int rel_threshold : 16; /* flow control release threshold */
+ } bits;
+} GMAC_CONFIG2_T;
+
+/*
+ * GMAC Configuration 3
+ * GMAC0 Offset 0xA024
+ * GMAC1 Offset 0xE024
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit1_0024 {
+ unsigned int set_threshold : 16; /* flow control set threshold */
+ unsigned int rel_threshold : 16; /* flow control release threshold */
+ } bits;
+} GMAC_CONFIG3_T;
+
+
+/*
+ * GMAC STATUS
+ * GMAC0 Offset 0xA02C
+ * GMAC1 Offset 0xE02C
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit1_002c {
+ unsigned int link : 1; /* link status */
+ unsigned int speed : 2; /* link speed(00->2.5M 01->25M 10->125M) */
+ unsigned int duplex : 1; /* duplex mode */
+ unsigned int reserved : 1;
+ unsigned int mii_rmii : 2; /* PHY interface type */
+ unsigned int : 25;
+ } bits;
+} GMAC_STATUS_T;
+
+#define GMAC_SPEED_10 0
+#define GMAC_SPEED_100 1
+#define GMAC_SPEED_1000 2
+
+#define GMAC_PHY_MII 0
+#define GMAC_PHY_GMII 1
+#define GMAC_PHY_RGMII_100_10 2
+#define GMAC_PHY_RGMII_1000 3
+
+/*
+ * Queue Header
+ * (1) TOE Queue Header
+ * (2) Non-TOE Queue Header
+ * (3) Interrupt Queue Header
+ *
+ * memory Layout
+ * TOE Queue Header
+ * 0x60003000 +---------------------------+ 0x0000
+ * | TOE Queue 0 Header |
+ * | 8 * 4 Bytes |
+ * +---------------------------+ 0x0020
+ * | TOE Queue 1 Header |
+ * | 8 * 4 Bytes |
+ * +---------------------------+ 0x0040
+ * | ...... |
+ * | |
+ * +---------------------------+
+ *
+ * Non TOE Queue Header
+ * 0x60002000 +---------------------------+ 0x0000
+ * | Default Queue 0 Header |
+ * | 2 * 4 Bytes |
+ * +---------------------------+ 0x0008
+ * | Default Queue 1 Header |
+ * | 2 * 4 Bytes |
+ * +---------------------------+ 0x0010
+ * | Classification Queue 0 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+
+ * | Classification Queue 1 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+ (n * 8 + 0x10)
+ * | ... |
+ * | 2 * 4 Bytes |
+ * +---------------------------+ (13 * 8 + 0x10)
+ * | Classification Queue 13 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+ 0x80
+ * | Interrupt Queue 0 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+
+ * | Interrupt Queue 1 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+
+ * | Interrupt Queue 2 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+
+ * | Interrupt Queue 3 |
+ * | 2 * 4 Bytes |
+ * +---------------------------+
+ *
+ */
+#define TOE_QUEUE_HDR_ADDR(n) (TOE_TOE_QUE_HDR_BASE + n * 32)
+#define TOE_Q_HDR_AREA_END (TOE_QUEUE_HDR_ADDR(TOE_TOE_QUEUE_MAX + 1))
+#define TOE_DEFAULT_Q_HDR_BASE(x) (TOE_NONTOE_QUE_HDR_BASE + 0x08 * (x))
+#define TOE_CLASS_Q_HDR_BASE (TOE_NONTOE_QUE_HDR_BASE + 0x10)
+#define TOE_INTR_Q_HDR_BASE (TOE_NONTOE_QUE_HDR_BASE + 0x80)
+#define INTERRUPT_QUEUE_HDR_ADDR(n) (TOE_INTR_Q_HDR_BASE + n * 8)
+#define NONTOE_Q_HDR_AREA_END (INTERRUPT_QUEUE_HDR_ADDR(TOE_INTR_QUEUE_MAX + 1))
+/*
+ * TOE Queue Header Word 0
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int base_size;
+} TOE_QHDR0_T;
+
+#define TOE_QHDR0_BASE_MASK (~0x0f)
+
+/*
+ * TOE Queue Header Word 1
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_qhdr1 {
+ unsigned int rptr : 16; // bit 15:0
+ unsigned int wptr : 16; // bit 31:16
+ } bits;
+} TOE_QHDR1_T;
+
+/*
+ * TOE Queue Header Word 2
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_qhdr2 {
+ unsigned int TotalPktSize : 17; // bit 16: 0 Total packet size
+ unsigned int reserved : 7; // bit 23:17
+ unsigned int dack : 1; // bit 24 1: Duplicated ACK
+ unsigned int abn : 1; // bit 25 1: Abnormal case Found
+ unsigned int tcp_opt : 1; // bit 26 1: Have TCP option
+ unsigned int ip_opt : 1; // bit 27 1: have IPV4 option or IPV6 Extension header
+ unsigned int sat : 1; // bit 28 1: SeqCnt > SeqThreshold, or AckCnt > AckThreshold
+ unsigned int osq : 1; // bit 29 1: out of sequence
+ unsigned int ctl : 1; // bit 30 1: have control flag bits (except ack)
+ unsigned int usd : 1; // bit 31 0: if no data assembled yet
+ } bits;
+} TOE_QHDR2_T;
+
+/*
+ * TOE Queue Header Word 3
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int seq_num;
+} TOE_QHDR3_T;
+
+/*
+ * TOE Queue Header Word 4
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int ack_num;
+} TOE_QHDR4_T;
+
+/*
+ * TOE Queue Header Word 5
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_qhdr5 {
+ unsigned int AckCnt : 16; // bit 15:0
+ unsigned int SeqCnt : 16; // bit 31:16
+ } bits;
+} TOE_QHDR5_T;
+
+/*
+ * TOE Queue Header Word 6
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_qhdr6 {
+ unsigned int WinSize : 16; // bit 15:0
+ unsigned int iq_num : 2; // bit 17:16
+ unsigned int MaxPktSize : 14; // bit 31:18
+ } bits;
+} TOE_QHDR6_T;
+
+/*
+ * TOE Queue Header Word 7
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_qhdr7 {
+ unsigned int AckThreshold : 16; // bit 15:0
+ unsigned int SeqThreshold : 16; // bit 31:16
+ } bits;
+} TOE_QHDR7_T;
+
+/*
+ * TOE Queue Header
+ */
+typedef struct {
+ TOE_QHDR0_T word0;
+ TOE_QHDR1_T word1;
+ TOE_QHDR2_T word2;
+ TOE_QHDR3_T word3;
+ TOE_QHDR4_T word4;
+ TOE_QHDR5_T word5;
+ TOE_QHDR6_T word6;
+ TOE_QHDR7_T word7;
+} TOE_QHDR_T;
+
+/*
+ * NONTOE Queue Header Word 0
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int base_size;
+} NONTOE_QHDR0_T;
+
+#define NONTOE_QHDR0_BASE_MASK (~0x0f)
+
+/*
+ * NONTOE Queue Header Word 1
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_nonqhdr1 {
+ unsigned int rptr : 16; // bit 15:0
+ unsigned int wptr : 16; // bit 31:16
+ } bits;
+} NONTOE_QHDR1_T;
+
+/*
+ * Non-TOE Queue Header
+ */
+typedef struct {
+ NONTOE_QHDR0_T word0;
+ NONTOE_QHDR1_T word1;
+} NONTOE_QHDR_T;
+
+/*
+ * Interrupt Queue Header Word 0
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_intrqhdr0 {
+ unsigned int win_size : 16; // bit 15:0 Descriptor Ring Size
+ unsigned int wptr : 16; // bit 31:16 Write Pointer where hw stopped
+ } bits;
+} INTR_QHDR0_T;
+
+/*
+ * Interrupt Queue Header Word 1
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_intrqhdr1 {
+ unsigned int TotalPktSize : 17; // bit 16: 0 Total packet size
+ unsigned int tcp_qid : 8; // bit 24:17 TCP Queue ID
+ unsigned int dack : 1; // bit 25 1: Duplicated ACK
+ unsigned int abn : 1; // bit 26 1: Abnormal case Found
+ unsigned int tcp_opt : 1; // bit 27 1: Have TCP option
+ unsigned int ip_opt : 1; // bit 28 1: have IPV4 option or IPV6 Extension header
+ unsigned int sat : 1; // bit 29 1: SeqCnt > SeqThreshold, or AckCnt > AckThreshold
+ unsigned int osq : 1; // bit 30 1: out of sequence
+ unsigned int ctl : 1; // bit 31 1: have control flag bits (except ack)
+ } bits;
+} INTR_QHDR1_T;
+
+/*
+ * Interrupt Queue Header Word 2
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int seq_num;
+} INTR_QHDR2_T;
+
+/*
+ * Interrupt Queue Header Word 3
+ */
+typedef union {
+ unsigned int bits32;
+ unsigned int ack_num;
+} INTR_QHDR3_T;
+
+/*
+ * Interrupt Queue Header Word 4
+ */
+typedef union {
+ unsigned int bits32;
+ struct bit_intrqhdr4 {
+ unsigned int AckCnt : 16; // bit 15:0 Ack# change since last ack# intr.
+ unsigned int SeqCnt : 16; // bit 31:16 Seq# change since last seq# intr.
+ } bits;
+} INTR_QHDR4_T;
+
+/*
+ * Interrupt Queue Header
+ */
+typedef struct {
+ INTR_QHDR0_T word0;
+ INTR_QHDR1_T word1;
+ INTR_QHDR2_T word2;
+ INTR_QHDR3_T word3;
+ INTR_QHDR4_T word4;
+ unsigned int word5;
+ unsigned int word6;
+ unsigned int word7;
+} INTR_QHDR_T;
+
+/*
+ * GMAC private data
+ */
+typedef struct {
+ void __iomem *rwptr_reg;
+ unsigned int desc_base;
+ unsigned int desc_base_dma;
+ unsigned short finished_idx;
+ struct sk_buff *tx_skb[TOE_GMAC_SWTXQ_DESC_NUM];
+} GMAC_SWTXQ_T;
+
+struct gmac_private {
+ struct phy_device *phydev;
+ unsigned int port_id;
+ void __iomem *base_addr;
+ void __iomem *dma_base_addr;
+ unsigned int swtxq_desc_base;
+ GMAC_SWTXQ_T swtxq[TOE_SW_TXQ_NUM];
+ NONTOE_QHDR_T *default_qhdr;
+ unsigned int default_desc_base;
+ dma_addr_t default_desc_base_dma;
+ dma_addr_t swtxq_desc_base_dma;
+ unsigned int flow_control_enable;
+ unsigned int intr0_enabled;
+ unsigned int intr1_enabled;
+ unsigned int intr2_enabled;
+ unsigned int intr3_enabled;
+ unsigned int intr4_enabled;
+ unsigned int intr0_selected;
+ unsigned int intr1_selected;
+ unsigned int intr2_selected;
+ unsigned int intr3_selected;
+ unsigned int intr4_selected;
+};
+
+struct toe_private {
+ void __iomem *global_base;
+ struct net_device *net_dev[2];
+ struct device *dev;
+ struct work_struct freq_work;
+ spinlock_t freeq_lock;
+ unsigned int swfq_desc_base;
+ unsigned int hwfq_desc_base;
+ unsigned int hwfq_buf_base;
+ dma_addr_t sw_freeq_desc_base_dma;
+ dma_addr_t hw_freeq_desc_base_dma;
+ dma_addr_t hwfq_buf_base_dma;
+ dma_addr_t hwfq_buf_end_dma;
+};
+
+#define GMAC_PORT0 0
+#define GMAC_PORT1 1
+
+#endif /* _GMAC_SL351x_H */
--- /dev/null
+++ b/drivers/net/gemini_negmac/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_GEMINI_NET_ENGINE_GMAC)+= gemini_negmac.o
+
+gemini_negmac-objs := gm_gmac.o
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -100,6 +100,13 @@ config NET_FC
adaptor below. You also should have said Y to "SCSI support" and
"SCSI generic support".
+config GEMINI_NET_ENGINE_GMAC
+ tristate "Gemini Gigabit Ethernet support"
+ depends on ARCH_GEMINI
+ select PHYLIB
+ help
+ This driver supports Gemini TOE and NAT dual Gigabit Ethernet.
+
config MII
tristate "Generic Media Independent Interface device support"
help
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_ETRAX_ETHERNET) += cris/
obj-$(CONFIG_NET_DSA) += dsa/
obj-$(CONFIG_ETHERNET) += ethernet/
obj-$(CONFIG_FDDI) += fddi/
+obj-$(CONFIG_GEMINI_NET_ENGINE_GMAC) += gemini_negmac/
obj-$(CONFIG_HIPPI) += hippi/
obj-$(CONFIG_HAMRADIO) += hamradio/
obj-$(CONFIG_IRDA) += irda/
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