DWC Ether MAC 10/100/1000 Universal version 3.41a has been used for
developing this code.
+ This contains the functions to handle the dma and descriptors.
+
Copyright (C) 2007-2009 STMicroelectronics Ltd
This program is free software; you can redistribute it and/or modify it
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
-#include <linux/netdevice.h>
-#include <linux/crc32.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-
-#include "stmmac.h"
-#include "gmac.h"
+#include "dwmac1000.h"
#include "dwmac_dma.h"
-#undef GMAC_DEBUG
-/*#define GMAC_DEBUG*/
-#undef FRAME_FILTER_DEBUG
-/*#define FRAME_FILTER_DEBUG*/
-#ifdef GMAC_DEBUG
-#define DBG(fmt, args...) printk(fmt, ## args)
-#else
-#define DBG(fmt, args...) do { } while (0)
-#endif
-
-static void gmac_dump_regs(unsigned long ioaddr)
-{
- int i;
- pr_info("\t----------------------------------------------\n"
- "\t GMAC registers (base addr = 0x%8x)\n"
- "\t----------------------------------------------\n",
- (unsigned int)ioaddr);
-
- for (i = 0; i < 55; i++) {
- int offset = i * 4;
- pr_info("\tReg No. %d (offset 0x%x): 0x%08x\n", i,
- offset, readl(ioaddr + offset));
- }
- return;
-}
-
-static int gmac_dma_init(unsigned long ioaddr, int pbl, u32 dma_tx, u32 dma_rx)
+static int dwmac1000_dma_init(unsigned long ioaddr, int pbl, u32 dma_tx,
+ u32 dma_rx)
{
u32 value = readl(ioaddr + DMA_BUS_MODE);
/* DMA SW reset */
}
/* Transmit FIFO flush operation */
-static void gmac_flush_tx_fifo(unsigned long ioaddr)
+static void dwmac1000_flush_tx_fifo(unsigned long ioaddr)
{
u32 csr6 = readl(ioaddr + DMA_CONTROL);
writel((csr6 | DMA_CONTROL_FTF), ioaddr + DMA_CONTROL);
do {} while ((readl(ioaddr + DMA_CONTROL) & DMA_CONTROL_FTF));
}
-static void gmac_dma_operation_mode(unsigned long ioaddr, int txmode,
+static void dwmac1000_dma_operation_mode(unsigned long ioaddr, int txmode,
int rxmode)
{
u32 csr6 = readl(ioaddr + DMA_CONTROL);
}
/* Not yet implemented --- no RMON module */
-static void gmac_dma_diagnostic_fr(void *data, struct stmmac_extra_stats *x,
- unsigned long ioaddr)
+static void dwmac1000_dma_diagnostic_fr(void *data,
+ struct stmmac_extra_stats *x, unsigned long ioaddr)
{
return;
}
-static void gmac_dump_dma_regs(unsigned long ioaddr)
+static void dwmac1000_dump_dma_regs(unsigned long ioaddr)
{
int i;
pr_info(" DMA registers\n");
return;
}
-static int gmac_get_tx_frame_status(void *data, struct stmmac_extra_stats *x,
- struct dma_desc *p, unsigned long ioaddr)
+static int dwmac1000_get_tx_frame_status(void *data,
+ struct stmmac_extra_stats *x,
+ struct dma_desc *p, unsigned long ioaddr)
{
int ret = 0;
struct net_device_stats *stats = (struct net_device_stats *)data;
if (unlikely(p->des01.etx.frame_flushed)) {
DBG(KERN_ERR "\tframe_flushed error\n");
x->tx_frame_flushed++;
- gmac_flush_tx_fifo(ioaddr);
+ dwmac1000_flush_tx_fifo(ioaddr);
}
if (unlikely(p->des01.etx.loss_carrier)) {
if (unlikely(p->des01.etx.underflow_error)) {
DBG(KERN_ERR "\tunderflow error\n");
- gmac_flush_tx_fifo(ioaddr);
+ dwmac1000_flush_tx_fifo(ioaddr);
x->tx_underflow++;
}
if (unlikely(p->des01.etx.payload_error)) {
DBG(KERN_ERR "\tAddr/Payload csum error\n");
x->tx_payload_error++;
- gmac_flush_tx_fifo(ioaddr);
+ dwmac1000_flush_tx_fifo(ioaddr);
}
ret = -1;
return ret;
}
-static int gmac_get_tx_len(struct dma_desc *p)
+static int dwmac1000_get_tx_len(struct dma_desc *p)
{
return p->des01.etx.buffer1_size;
}
-static int gmac_coe_rdes0(int ipc_err, int type, int payload_err)
+static int dwmac1000_coe_rdes0(int ipc_err, int type, int payload_err)
{
int ret = good_frame;
u32 status = (type << 2 | ipc_err << 1 | payload_err) & 0x7;
return ret;
}
-static int gmac_get_rx_frame_status(void *data, struct stmmac_extra_stats *x,
- struct dma_desc *p)
+static int dwmac1000_get_rx_frame_status(void *data,
+ struct stmmac_extra_stats *x, struct dma_desc *p)
{
int ret = good_frame;
struct net_device_stats *stats = (struct net_device_stats *)data;
* It doesn't match with the information reported into the databook.
* At any rate, we need to understand if the CSUM hw computation is ok
* and report this info to the upper layers. */
- ret = gmac_coe_rdes0(p->des01.erx.ipc_csum_error,
+ ret = dwmac1000_coe_rdes0(p->des01.erx.ipc_csum_error,
p->des01.erx.frame_type, p->des01.erx.payload_csum_error);
if (unlikely(p->des01.erx.dribbling)) {
return ret;
}
-static void gmac_irq_status(unsigned long ioaddr)
-{
- u32 intr_status = readl(ioaddr + GMAC_INT_STATUS);
-
- /* Not used events (e.g. MMC interrupts) are not handled. */
- if ((intr_status & mmc_tx_irq))
- DBG(KERN_DEBUG "GMAC: MMC tx interrupt: 0x%08x\n",
- readl(ioaddr + GMAC_MMC_TX_INTR));
- if (unlikely(intr_status & mmc_rx_irq))
- DBG(KERN_DEBUG "GMAC: MMC rx interrupt: 0x%08x\n",
- readl(ioaddr + GMAC_MMC_RX_INTR));
- if (unlikely(intr_status & mmc_rx_csum_offload_irq))
- DBG(KERN_DEBUG "GMAC: MMC rx csum offload: 0x%08x\n",
- readl(ioaddr + GMAC_MMC_RX_CSUM_OFFLOAD));
- if (unlikely(intr_status & pmt_irq)) {
- DBG(KERN_DEBUG "GMAC: received Magic frame\n");
- /* clear the PMT bits 5 and 6 by reading the PMT
- * status register. */
- readl(ioaddr + GMAC_PMT);
- }
-
- return;
-}
-
-static void gmac_core_init(unsigned long ioaddr)
-{
- u32 value = readl(ioaddr + GMAC_CONTROL);
- value |= GMAC_CORE_INIT;
- writel(value, ioaddr + GMAC_CONTROL);
-
- /* Freeze MMC counters */
- writel(0x8, ioaddr + GMAC_MMC_CTRL);
- /* Mask GMAC interrupts */
- writel(0x207, ioaddr + GMAC_INT_MASK);
-
-#ifdef STMMAC_VLAN_TAG_USED
- /* Tag detection without filtering */
- writel(0x0, ioaddr + GMAC_VLAN_TAG);
-#endif
- return;
-}
-
-static void gmac_set_umac_addr(unsigned long ioaddr, unsigned char *addr,
- unsigned int reg_n)
-{
- stmmac_set_mac_addr(ioaddr, addr, GMAC_ADDR_HIGH(reg_n),
- GMAC_ADDR_LOW(reg_n));
-}
-
-static void gmac_get_umac_addr(unsigned long ioaddr, unsigned char *addr,
- unsigned int reg_n)
-{
- stmmac_get_mac_addr(ioaddr, addr, GMAC_ADDR_HIGH(reg_n),
- GMAC_ADDR_LOW(reg_n));
-}
-
-static void gmac_set_filter(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int value = 0;
-
- DBG(KERN_INFO "%s: # mcasts %d, # unicast %d\n",
- __func__, dev->mc_count, dev->uc.count);
-
- if (dev->flags & IFF_PROMISC)
- value = GMAC_FRAME_FILTER_PR;
- else if ((dev->mc_count > HASH_TABLE_SIZE)
- || (dev->flags & IFF_ALLMULTI)) {
- value = GMAC_FRAME_FILTER_PM; /* pass all multi */
- writel(0xffffffff, ioaddr + GMAC_HASH_HIGH);
- writel(0xffffffff, ioaddr + GMAC_HASH_LOW);
- } else if (dev->mc_count > 0) {
- int i;
- u32 mc_filter[2];
- struct dev_mc_list *mclist;
-
- /* Hash filter for multicast */
- value = GMAC_FRAME_FILTER_HMC;
-
- memset(mc_filter, 0, sizeof(mc_filter));
- for (i = 0, mclist = dev->mc_list;
- mclist && i < dev->mc_count; i++, mclist = mclist->next) {
- /* The upper 6 bits of the calculated CRC are used to
- index the contens of the hash table */
- int bit_nr =
- bitrev32(~crc32_le(~0, mclist->dmi_addr, 6)) >> 26;
- /* The most significant bit determines the register to
- * use (H/L) while the other 5 bits determine the bit
- * within the register. */
- mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
- }
- writel(mc_filter[0], ioaddr + GMAC_HASH_LOW);
- writel(mc_filter[1], ioaddr + GMAC_HASH_HIGH);
- }
-
- /* Handle multiple unicast addresses (perfect filtering)*/
- if (dev->uc.count > GMAC_MAX_UNICAST_ADDRESSES)
- /* Switch to promiscuous mode is more than 16 addrs
- are required */
- value |= GMAC_FRAME_FILTER_PR;
- else {
- int reg = 1;
- struct netdev_hw_addr *ha;
-
- list_for_each_entry(ha, &dev->uc.list, list) {
- gmac_set_umac_addr(ioaddr, ha->addr, reg);
- reg++;
- }
- }
-
-#ifdef FRAME_FILTER_DEBUG
- /* Enable Receive all mode (to debug filtering_fail errors) */
- value |= GMAC_FRAME_FILTER_RA;
-#endif
- writel(value, ioaddr + GMAC_FRAME_FILTER);
-
- DBG(KERN_INFO "\tFrame Filter reg: 0x%08x\n\tHash regs: "
- "HI 0x%08x, LO 0x%08x\n", readl(ioaddr + GMAC_FRAME_FILTER),
- readl(ioaddr + GMAC_HASH_HIGH), readl(ioaddr + GMAC_HASH_LOW));
-
- return;
-}
-
-static void gmac_flow_ctrl(unsigned long ioaddr, unsigned int duplex,
- unsigned int fc, unsigned int pause_time)
-{
- unsigned int flow = 0;
-
- DBG(KERN_DEBUG "GMAC Flow-Control:\n");
- if (fc & FLOW_RX) {
- DBG(KERN_DEBUG "\tReceive Flow-Control ON\n");
- flow |= GMAC_FLOW_CTRL_RFE;
- }
- if (fc & FLOW_TX) {
- DBG(KERN_DEBUG "\tTransmit Flow-Control ON\n");
- flow |= GMAC_FLOW_CTRL_TFE;
- }
-
- if (duplex) {
- DBG(KERN_DEBUG "\tduplex mode: pause time: %d\n", pause_time);
- flow |= (pause_time << GMAC_FLOW_CTRL_PT_SHIFT);
- }
-
- writel(flow, ioaddr + GMAC_FLOW_CTRL);
- return;
-}
-
-static void gmac_pmt(unsigned long ioaddr, unsigned long mode)
-{
- unsigned int pmt = 0;
-
- if (mode == WAKE_MAGIC) {
- DBG(KERN_DEBUG "GMAC: WOL Magic frame\n");
- pmt |= power_down | magic_pkt_en;
- } else if (mode == WAKE_UCAST) {
- DBG(KERN_DEBUG "GMAC: WOL on global unicast\n");
- pmt |= global_unicast;
- }
-
- writel(pmt, ioaddr + GMAC_PMT);
- return;
-}
-
-static void gmac_init_rx_desc(struct dma_desc *p, unsigned int ring_size,
+static void dwmac1000_init_rx_desc(struct dma_desc *p, unsigned int ring_size,
int disable_rx_ic)
{
int i;
return;
}
-static void gmac_init_tx_desc(struct dma_desc *p, unsigned int ring_size)
+static void dwmac1000_init_tx_desc(struct dma_desc *p, unsigned int ring_size)
{
int i;
return;
}
-static int gmac_get_tx_owner(struct dma_desc *p)
+static int dwmac1000_get_tx_owner(struct dma_desc *p)
{
return p->des01.etx.own;
}
-static int gmac_get_rx_owner(struct dma_desc *p)
+static int dwmac1000_get_rx_owner(struct dma_desc *p)
{
return p->des01.erx.own;
}
-static void gmac_set_tx_owner(struct dma_desc *p)
+static void dwmac1000_set_tx_owner(struct dma_desc *p)
{
p->des01.etx.own = 1;
}
-static void gmac_set_rx_owner(struct dma_desc *p)
+static void dwmac1000_set_rx_owner(struct dma_desc *p)
{
p->des01.erx.own = 1;
}
-static int gmac_get_tx_ls(struct dma_desc *p)
+static int dwmac1000_get_tx_ls(struct dma_desc *p)
{
return p->des01.etx.last_segment;
}
-static void gmac_release_tx_desc(struct dma_desc *p)
+static void dwmac1000_release_tx_desc(struct dma_desc *p)
{
int ter = p->des01.etx.end_ring;
return;
}
-static void gmac_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
+static void dwmac1000_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
int csum_flag)
{
p->des01.etx.first_segment = is_fs;
p->des01.etx.checksum_insertion = cic_full;
}
-static void gmac_clear_tx_ic(struct dma_desc *p)
+static void dwmac1000_clear_tx_ic(struct dma_desc *p)
{
p->des01.etx.interrupt = 0;
}
-static void gmac_close_tx_desc(struct dma_desc *p)
+static void dwmac1000_close_tx_desc(struct dma_desc *p)
{
p->des01.etx.last_segment = 1;
p->des01.etx.interrupt = 1;
}
-static int gmac_get_rx_frame_len(struct dma_desc *p)
+static int dwmac1000_get_rx_frame_len(struct dma_desc *p)
{
return p->des01.erx.frame_length;
}
-struct stmmac_ops gmac_ops = {
- .core_init = gmac_core_init,
- .dump_regs = gmac_dump_regs,
- .host_irq_status = gmac_irq_status,
- .set_filter = gmac_set_filter,
- .flow_ctrl = gmac_flow_ctrl,
- .pmt = gmac_pmt,
- .set_umac_addr = gmac_set_umac_addr,
- .get_umac_addr = gmac_get_umac_addr,
-};
-
-struct stmmac_dma_ops gmac_dma_ops = {
- .init = gmac_dma_init,
- .dump_regs = gmac_dump_dma_regs,
- .dma_mode = gmac_dma_operation_mode,
- .dma_diagnostic_fr = gmac_dma_diagnostic_fr,
+struct stmmac_dma_ops dwmac1000_dma_ops = {
+ .init = dwmac1000_dma_init,
+ .dump_regs = dwmac1000_dump_dma_regs,
+ .dma_mode = dwmac1000_dma_operation_mode,
+ .dma_diagnostic_fr = dwmac1000_dma_diagnostic_fr,
.enable_dma_transmission = dwmac_enable_dma_transmission,
.enable_dma_irq = dwmac_enable_dma_irq,
.disable_dma_irq = dwmac_disable_dma_irq,
.dma_interrupt = dwmac_dma_interrupt,
};
-struct stmmac_desc_ops gmac_desc_ops = {
- .tx_status = gmac_get_tx_frame_status,
- .rx_status = gmac_get_rx_frame_status,
- .get_tx_len = gmac_get_tx_len,
- .init_rx_desc = gmac_init_rx_desc,
- .init_tx_desc = gmac_init_tx_desc,
- .get_tx_owner = gmac_get_tx_owner,
- .get_rx_owner = gmac_get_rx_owner,
- .release_tx_desc = gmac_release_tx_desc,
- .prepare_tx_desc = gmac_prepare_tx_desc,
- .clear_tx_ic = gmac_clear_tx_ic,
- .close_tx_desc = gmac_close_tx_desc,
- .get_tx_ls = gmac_get_tx_ls,
- .set_tx_owner = gmac_set_tx_owner,
- .set_rx_owner = gmac_set_rx_owner,
- .get_rx_frame_len = gmac_get_rx_frame_len,
+struct stmmac_desc_ops dwmac1000_desc_ops = {
+ .tx_status = dwmac1000_get_tx_frame_status,
+ .rx_status = dwmac1000_get_rx_frame_status,
+ .get_tx_len = dwmac1000_get_tx_len,
+ .init_rx_desc = dwmac1000_init_rx_desc,
+ .init_tx_desc = dwmac1000_init_tx_desc,
+ .get_tx_owner = dwmac1000_get_tx_owner,
+ .get_rx_owner = dwmac1000_get_rx_owner,
+ .release_tx_desc = dwmac1000_release_tx_desc,
+ .prepare_tx_desc = dwmac1000_prepare_tx_desc,
+ .clear_tx_ic = dwmac1000_clear_tx_ic,
+ .close_tx_desc = dwmac1000_close_tx_desc,
+ .get_tx_ls = dwmac1000_get_tx_ls,
+ .set_tx_owner = dwmac1000_set_tx_owner,
+ .set_rx_owner = dwmac1000_set_rx_owner,
+ .get_rx_frame_len = dwmac1000_get_rx_frame_len,
};
-
-struct mac_device_info *gmac_setup(unsigned long ioaddr)
-{
- struct mac_device_info *mac;
- u32 uid = readl(ioaddr + GMAC_VERSION);
-
- pr_info("\tGMAC - user ID: 0x%x, Synopsys ID: 0x%x\n",
- ((uid & 0x0000ff00) >> 8), (uid & 0x000000ff));
-
- mac = kzalloc(sizeof(const struct mac_device_info), GFP_KERNEL);
-
- mac->mac = &gmac_ops;
- mac->desc = &gmac_desc_ops;
- mac->dma = &gmac_dma_ops;
-
- mac->pmt = PMT_SUPPORTED;
- mac->link.port = GMAC_CONTROL_PS;
- mac->link.duplex = GMAC_CONTROL_DM;
- mac->link.speed = GMAC_CONTROL_FES;
- mac->mii.addr = GMAC_MII_ADDR;
- mac->mii.data = GMAC_MII_DATA;
-
- return mac;
-}
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff