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Diffstat (limited to 'gpxe/src/drivers/net/sis190.c')
-rw-r--r--gpxe/src/drivers/net/sis190.c1179
1 files changed, 0 insertions, 1179 deletions
diff --git a/gpxe/src/drivers/net/sis190.c b/gpxe/src/drivers/net/sis190.c
deleted file mode 100644
index 5d0145a5..00000000
--- a/gpxe/src/drivers/net/sis190.c
+++ /dev/null
@@ -1,1179 +0,0 @@
-/*
- sis190.c: Silicon Integrated Systems SiS190 ethernet driver
-
- Copyright (c) 2003 K.M. Liu <kmliu@sis.com>
- Copyright (c) 2003, 2004 Jeff Garzik <jgarzik@pobox.com>
- Copyright (c) 2003, 2004, 2005 Francois Romieu <romieu@fr.zoreil.com>
-
- Modified for gPXE 2009 by Thomas Miletich <thomas.miletich@gmail.com>
-
- Based on r8169.c, tg3.c, 8139cp.c, skge.c, epic100.c and SiS 190/191
- genuine driver.
-
- This software may be used and distributed according to the terms of
- the GNU General Public License (GPL), incorporated herein by reference.
- Drivers based on or derived from this code fall under the GPL and must
- retain the authorship, copyright and license notice. This file is not
- a complete program and may only be used when the entire operating
- system is licensed under the GPL.
-
- See the file COPYING in this distribution for more information.
-
- */
-
-FILE_LICENCE ( GPL_ANY );
-
-#include "sis190.h"
-
-static struct pci_device_id sis190_pci_tbl[] = {
- PCI_ROM (0x1039, 0x0190, "sis190", "sis190", 0),
- PCI_ROM (0x1039, 0x0191, "sis191", "sis191", 0),
-};
-
-/******************************************************************************
- *************** HACK to keep ISA bridge in the PCI device list ***************
- ******************************************************************************/
-
-/* Some sis190 variants store the MAC address in the BIOS CMOS. To read it, we
- * have to use a PCI to ISA bridge. To access the bridge we need a few things
- * from it's struct pci_device. We fake the successful probe of a driver to
- * keep the bridge's struct pci_device in the list of pci_devices.
- * See details in sis190_get_mac_addr_from_apc().
- */
-
-static struct pci_device_id sis190_isa_bridge_tbl[] = {
- PCI_ID (0x1039, 0x0965, "", "", 0),
- PCI_ID (0x1039, 0x0966, "", "", 0),
- PCI_ID (0x1039, 0x0968, "", "", 0),
-};
-
-static int sis190_isa_bridge_probe(struct pci_device *pdev __unused,
- const struct pci_device_id *ent __unused)
-{
- return 0;
-}
-
-static void sis190_isa_bridge_remove(struct pci_device *pdev __unused)
-{
- return;
-}
-
-struct pci_driver sis190_isa_bridge_driver __pci_driver = {
- .ids = sis190_isa_bridge_tbl,
- .id_count = (sizeof(sis190_isa_bridge_tbl) /
- sizeof(sis190_isa_bridge_tbl[0])),
- .probe = sis190_isa_bridge_probe,
- .remove = sis190_isa_bridge_remove,
-};
-
-/******************************************************************************
- *********************************** </HACK> **********************************
- ******************************************************************************/
-
-static const u32 sis190_intr_mask =
- RxQEmpty | RxQInt | TxQ1Int | TxQ0Int | RxHalt | TxHalt | LinkChange;
-
-/*
- * Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
- * The chips use a 64 element hash table based on the Ethernet CRC.
- */
-static const int multicast_filter_limit = 32;
-
-static void __mdio_cmd(void *ioaddr, u32 ctl)
-{
- unsigned int i;
-
- SIS_W32(GMIIControl, ctl);
-
- mdelay(1);
-
- for (i = 0; i < 100; i++) {
- if (!(SIS_R32(GMIIControl) & EhnMIInotDone))
- break;
- mdelay(1);
- }
-
- if (i > 99)
- DBG("sis190: PHY command timed out !\n");
-}
-
-static void mdio_write(void *ioaddr, int phy_id, int reg, int val)
-{
- __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIwrite |
- (((u32) reg) << EhnMIIregShift) | (phy_id << EhnMIIpmdShift) |
- (((u32) val) << EhnMIIdataShift));
-}
-
-static int mdio_read(void *ioaddr, int phy_id, int reg)
-{
- __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIread |
- (((u32) reg) << EhnMIIregShift) | (phy_id << EhnMIIpmdShift));
-
- return (u16) (SIS_R32(GMIIControl) >> EhnMIIdataShift);
-}
-
-static void __mdio_write(struct net_device *dev, int phy_id, int reg, int val)
-{
- struct sis190_private *tp = netdev_priv(dev);
-
- mdio_write(tp->mmio_addr, phy_id, reg, val);
-}
-
-static int __mdio_read(struct net_device *dev, int phy_id, int reg)
-{
- struct sis190_private *tp = netdev_priv(dev);
-
- return mdio_read(tp->mmio_addr, phy_id, reg);
-}
-
-static u16 mdio_read_latched(void *ioaddr, int phy_id, int reg)
-{
- mdio_read(ioaddr, phy_id, reg);
- return mdio_read(ioaddr, phy_id, reg);
-}
-
-static u16 sis190_read_eeprom(void *ioaddr, u32 reg)
-{
- u16 data = 0xffff;
- unsigned int i;
-
- if (!(SIS_R32(ROMControl) & 0x0002))
- return 0;
-
- SIS_W32(ROMInterface, EEREQ | EEROP | (reg << 10));
-
- for (i = 0; i < 200; i++) {
- if (!(SIS_R32(ROMInterface) & EEREQ)) {
- data = (SIS_R32(ROMInterface) & 0xffff0000) >> 16;
- break;
- }
- mdelay(1);
- }
-
- return data;
-}
-
-static void sis190_irq_mask_and_ack(void *ioaddr)
-{
- SIS_W32(IntrMask, 0x00);
- SIS_W32(IntrStatus, 0xffffffff);
- SIS_PCI_COMMIT();
-}
-
-static void sis190_asic_down(void *ioaddr)
-{
- /* Stop the chip's Tx and Rx DMA processes. */
-
- SIS_W32(TxControl, 0x1a00);
- SIS_W32(RxControl, 0x1a00);
-
- sis190_irq_mask_and_ack(ioaddr);
-}
-
-static inline void sis190_mark_as_last_descriptor(struct RxDesc *desc)
-{
- desc->size |= cpu_to_le32(RingEnd);
-}
-
-static inline void sis190_give_to_asic(struct RxDesc *desc)
-{
- u32 eor = le32_to_cpu(desc->size) & RingEnd;
-
- desc->PSize = 0x0;
- desc->size = cpu_to_le32((RX_BUF_SIZE & RX_BUF_MASK) | eor);
- wmb();
- desc->status = cpu_to_le32(OWNbit | INTbit);
-}
-
-static inline void sis190_map_to_asic(struct RxDesc *desc, u32 mapping)
-{
- desc->addr = cpu_to_le32(mapping);
- sis190_give_to_asic(desc);
-}
-
-static inline void sis190_make_unusable_by_asic(struct RxDesc *desc)
-{
- desc->PSize = 0x0;
- desc->addr = cpu_to_le32(0xdeadbeef);
- desc->size &= cpu_to_le32(RingEnd);
- wmb();
- desc->status = 0x0;
-}
-
-static struct io_buffer *sis190_alloc_rx_iob(struct RxDesc *desc)
-{
- struct io_buffer *iob;
-
- iob = alloc_iob(RX_BUF_SIZE);
- if (iob) {
- u32 mapping;
-
- mapping = virt_to_bus(iob->data);
- sis190_map_to_asic(desc, mapping);
- } else {
- DBG("sis190: alloc_iob failed\n");
- sis190_make_unusable_by_asic(desc);
- }
-
- return iob;
-}
-
-static u32 sis190_rx_fill(struct sis190_private *tp, u32 start, u32 end)
-{
- u32 cur;
-
- for (cur = start; cur < end; cur++) {
- unsigned int i = cur % NUM_RX_DESC;
-
- if (tp->Rx_iobuf[i])
- continue;
-
- tp->Rx_iobuf[i] = sis190_alloc_rx_iob(tp->RxDescRing + i);
-
- if (!tp->Rx_iobuf[i])
- break;
- }
- return cur - start;
-}
-
-static inline int sis190_rx_pkt_err(u32 status)
-{
-#define ErrMask (OVRUN | SHORT | LIMIT | MIIER | NIBON | COLON | ABORT)
-
- if ((status & CRCOK) && !(status & ErrMask))
- return 0;
-
- return -1;
-}
-
-static int sis190_process_rx(struct sis190_private *tp)
-{
- u32 rx_left, cur_rx = tp->cur_rx;
- u32 delta, count;
-
- rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
-
- for (; rx_left > 0; rx_left--, cur_rx++) {
- unsigned int entry = cur_rx % NUM_RX_DESC;
- struct RxDesc *desc = tp->RxDescRing + entry;
- u32 status;
-
- if (le32_to_cpu(desc->status) & OWNbit)
- break;
-
- status = le32_to_cpu(desc->PSize);
-
- if (sis190_rx_pkt_err(status) < 0) {
- sis190_give_to_asic(desc);
- } else {
- struct io_buffer *iob = tp->Rx_iobuf[entry];
- unsigned int pkt_size = (status & RxSizeMask) - 4;
-
- if (pkt_size > RX_BUF_SIZE) {
- DBG("sis190: (frag) status = %08x.\n", status);
- sis190_give_to_asic(desc);
- continue;
- }
-
- sis190_make_unusable_by_asic(desc);
-
- iob_put(iob, pkt_size);
-
- DBG2("sis190: received packet. len: %d\n", pkt_size);
- netdev_rx(tp->dev, iob);
- DBGIO_HD(iob->data, 60);
- tp->Rx_iobuf[entry] = NULL;
- }
- }
- count = cur_rx - tp->cur_rx;
- tp->cur_rx = cur_rx;
-
- delta = sis190_rx_fill(tp, tp->dirty_rx, tp->cur_rx);
- if (!delta && count)
- DBG("sis190: no Rx buffer allocated.\n");
- tp->dirty_rx += delta;
-
- if (((tp->dirty_rx + NUM_RX_DESC) == tp->cur_rx))
- DBG("sis190: Rx buffers exhausted.\n");
-
- return count;
-}
-
-static inline int sis190_tx_pkt_err(u32 status)
-{
-#define TxErrMask (WND | TABRT | FIFO | LINK)
-
- if (!(status & TxErrMask))
- return 0;
-
- return -1;
-}
-
-static void sis190_process_tx(struct sis190_private *tp)
-{
- u32 pending, dirty_tx = tp->dirty_tx;
-
- pending = tp->cur_tx - dirty_tx;
-
- for (; pending; pending--, dirty_tx++) {
- unsigned int entry = dirty_tx % NUM_TX_DESC;
- struct TxDesc *txd = tp->TxDescRing + entry;
- u32 status = le32_to_cpu(txd->status);
- struct io_buffer *iob;
-
- if (status & OWNbit)
- break;
-
- iob = tp->Tx_iobuf[entry];
-
- if (!iob)
- break;
-
- if (sis190_tx_pkt_err(status) == 0) {
- DBG2("sis190: Transmitted packet: %#08x\n", status);
- netdev_tx_complete(tp->dev, iob);
- } else {
- DBG("sis190: Transmit error: %#08x\n", status);
- netdev_tx_complete_err(tp->dev, iob, -EINVAL);
- }
-
- tp->Tx_iobuf[entry] = NULL;
- }
-
- if (tp->dirty_tx != dirty_tx)
- tp->dirty_tx = dirty_tx;
-}
-
-/*
- * The interrupt handler does all of the Rx thread work and cleans up after
- * the Tx thread.
- */
-static void sis190_poll(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
- u32 status;
-
- status = SIS_R32(IntrStatus);
-
- if ((status == 0xffffffff) || !status)
- return;
-
- SIS_W32(IntrStatus, status);
-
- /* sis190_phy_task() needs to be called in event of a LinkChange and
- * after auto-negotiation is finished. Finishing auto-neg won't generate
- * any indication, hence we call it every time if the link is bad. */
- if ((status & LinkChange) || !netdev_link_ok(dev))
- sis190_phy_task(tp);
-
- if (status & RxQInt)
- sis190_process_rx(tp);
-
- if (status & TxQ0Int)
- sis190_process_tx(tp);
-}
-
-static inline void sis190_init_ring_indexes(struct sis190_private *tp)
-{
- tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
-}
-
-static int sis190_init_ring(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
-
- sis190_init_ring_indexes(tp);
-
- memset(tp->Tx_iobuf, 0, NUM_TX_DESC * sizeof(struct io_buffer *));
- memset(tp->Rx_iobuf, 0, NUM_RX_DESC * sizeof(struct io_buffer *));
-
- if (sis190_rx_fill(tp, 0, NUM_RX_DESC) != NUM_RX_DESC)
- goto err;
-
- sis190_mark_as_last_descriptor(tp->RxDescRing + NUM_RX_DESC - 1);
-
- return 0;
-
-err:
- sis190_free(dev);
- return -ENOMEM;
-}
-
-static void sis190_set_rx_mode(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
- u32 mc_filter[2]; /* Multicast hash filter */
- u16 rx_mode;
-
- rx_mode = AcceptBroadcast | AcceptMyPhys | AcceptMulticast;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
-
- SIS_W16(RxMacControl, rx_mode | 0x2);
- SIS_W32(RxHashTable, mc_filter[0]);
- SIS_W32(RxHashTable + 4, mc_filter[1]);
-
-}
-
-static void sis190_soft_reset(void *ioaddr)
-{
- SIS_W32(IntrControl, 0x8000);
- SIS_PCI_COMMIT();
- SIS_W32(IntrControl, 0x0);
- sis190_asic_down(ioaddr);
-}
-
-static void sis190_hw_start(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
-
- sis190_soft_reset(ioaddr);
-
- SIS_W32(TxDescStartAddr, tp->tx_dma);
- SIS_W32(RxDescStartAddr, tp->rx_dma);
-
- SIS_W32(IntrStatus, 0xffffffff);
- SIS_W32(IntrMask, 0x0);
- SIS_W32(GMIIControl, 0x0);
- SIS_W32(TxMacControl, 0x60);
- SIS_W16(RxMacControl, 0x02);
- SIS_W32(RxHashTable, 0x0);
- SIS_W32(0x6c, 0x0);
- SIS_W32(RxWolCtrl, 0x0);
- SIS_W32(RxWolData, 0x0);
-
- SIS_PCI_COMMIT();
-
- sis190_set_rx_mode(dev);
-
- SIS_W32(TxControl, 0x1a00 | CmdTxEnb);
- SIS_W32(RxControl, 0x1a1d);
-}
-
-static void sis190_phy_task(struct sis190_private *tp)
-{
- struct net_device *dev = tp->dev;
- void *ioaddr = tp->mmio_addr;
- int phy_id = tp->mii_if.phy_id;
- int cnt = 0;
- u16 val;
-
- val = mdio_read(ioaddr, phy_id, MII_BMCR);
-
- /* 100ms timeout is completely arbitrary. I have no datasheet to
- * check whether that's a sensible value or not.
- */
- while ((val & BMCR_RESET) && (cnt < 100)) {
- val = mdio_read(ioaddr, phy_id, MII_BMCR);
- mdelay(1);
- cnt++;
- }
-
- if (cnt > 99) {
- DBG("sis190: BMCR_RESET timeout\n");
- return;
- }
-
- if (!(mdio_read_latched(ioaddr, phy_id, MII_BMSR) &
- BMSR_ANEGCOMPLETE)) {
- DBG("sis190: auto-negotiating...\n");
- netdev_link_down(dev);
- } else {
- /* Rejoice ! */
- struct {
- int val;
- u32 ctl;
- const char *msg;
- } reg31[] = {
- { LPA_1000FULL, 0x07000c00 | 0x00001000,
- "1000 Mbps Full Duplex" },
- { LPA_1000HALF, 0x07000c00,
- "1000 Mbps Half Duplex" },
- { LPA_100FULL, 0x04000800 | 0x00001000,
- "100 Mbps Full Duplex" },
- { LPA_100HALF, 0x04000800,
- "100 Mbps Half Duplex" },
- { LPA_10FULL, 0x04000400 | 0x00001000,
- "10 Mbps Full Duplex" },
- { LPA_10HALF, 0x04000400,
- "10 Mbps Half Duplex" },
- { 0, 0x04000400, "unknown" }
- }, *p = NULL;
- u16 adv, autoexp, gigadv, gigrec;
-
- val = mdio_read(ioaddr, phy_id, 0x1f);
-
- val = mdio_read(ioaddr, phy_id, MII_LPA);
- adv = mdio_read(ioaddr, phy_id, MII_ADVERTISE);
-
- autoexp = mdio_read(ioaddr, phy_id, MII_EXPANSION);
-
- if (val & LPA_NPAGE && autoexp & EXPANSION_NWAY) {
- /* check for gigabit speed */
- gigadv = mdio_read(ioaddr, phy_id, MII_CTRL1000);
- gigrec = mdio_read(ioaddr, phy_id, MII_STAT1000);
- val = (gigadv & (gigrec >> 2));
- if (val & ADVERTISE_1000FULL)
- p = reg31;
- else if (val & ADVERTISE_1000HALF)
- p = reg31 + 1;
- }
-
- if (!p) {
- val &= adv;
-
- for (p = reg31; p->val; p++) {
- if ((val & p->val) == p->val)
- break;
- }
- }
-
- p->ctl |= SIS_R32(StationControl) & ~0x0f001c00;
-
- if ((tp->features & F_HAS_RGMII) &&
- (tp->features & F_PHY_BCM5461)) {
- // Set Tx Delay in RGMII mode.
- mdio_write(ioaddr, phy_id, 0x18, 0xf1c7);
- udelay(200);
- mdio_write(ioaddr, phy_id, 0x1c, 0x8c00);
- p->ctl |= 0x03000000;
- }
-
- SIS_W32(StationControl, p->ctl);
-
- if (tp->features & F_HAS_RGMII) {
- SIS_W32(RGDelay, 0x0441);
- SIS_W32(RGDelay, 0x0440);
- }
-
- DBG("sis190: link on %s mode.\n", p->msg);
- netdev_link_up(dev);
- }
-}
-
-static int sis190_open(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- int rc;
-
- /* Allocate TX ring */
- tp->TxDescRing = malloc_dma(TX_RING_BYTES, RING_ALIGNMENT);
- if (!tp->TxDescRing) {
- DBG("sis190: TX ring allocation failed\n");
- rc = -ENOMEM;
- goto out;
- }
- tp->tx_dma = cpu_to_le32(virt_to_bus(tp->TxDescRing));
-
- /* Allocate RX ring */
- tp->RxDescRing = malloc_dma(RX_RING_BYTES, RING_ALIGNMENT);
- if (!tp->RxDescRing) {
- DBG("sis190: RX ring allocation failed\n");
- rc = -ENOMEM;
- goto error;
- }
- tp->rx_dma = cpu_to_le32(virt_to_bus(tp->RxDescRing));
-
- rc = sis190_init_ring(dev);
- if (rc < 0)
- goto error;
-
- /* init rx filter, also program MAC address to card */
- sis190_init_rxfilter(dev);
-
- sis190_hw_start(dev);
-out:
- return rc;
-
-error:
- sis190_free(dev);
- goto out;
-}
-
-static void sis190_down(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
-
- do {
- sis190_asic_down(ioaddr);
- } while (SIS_R32(IntrMask));
-}
-
-static void sis190_free(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- int i;
-
- free_dma(tp->TxDescRing, TX_RING_BYTES);
- free_dma(tp->RxDescRing, RX_RING_BYTES);
-
- tp->TxDescRing = NULL;
- tp->RxDescRing = NULL;
-
- tp->tx_dma = 0;
- tp->rx_dma = 0;
-
- tp->cur_tx = tp->dirty_tx = 0;
- tp->cur_rx = tp->dirty_rx = 0;
-
- for (i = 0; i < NUM_RX_DESC; i++) {
- free_iob(tp->Rx_iobuf[i]);
- tp->Rx_iobuf[i] = NULL;
- }
-
- /* tx io_buffers aren't owned by the driver, so don't free them */
- for(i = 0; i < NUM_TX_DESC; i++)
- tp->Tx_iobuf[i] = NULL;
-}
-
-static void sis190_close(struct net_device *dev)
-{
- sis190_down(dev);
- sis190_free(dev);
-}
-
-static int sis190_transmit(struct net_device *dev, struct io_buffer *iob)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
- u32 len, entry;
- struct TxDesc *desc;
-
- len = iob_len(iob);
- if (len < ETH_ZLEN) {
- iob_pad(iob, ETH_ZLEN);
- len = ETH_ZLEN;
- }
-
- entry = tp->cur_tx % NUM_TX_DESC;
- desc = tp->TxDescRing + entry;
-
- if (le32_to_cpu(desc->status) & OWNbit) {
- DBG("sis190: Tx Ring full\n");
- return -EINVAL;
- }
-
- tp->Tx_iobuf[entry] = iob;
-
- desc->PSize = cpu_to_le32(len);
- desc->addr = cpu_to_le32(virt_to_bus(iob->data));
-
- desc->size = cpu_to_le32(len);
- if (entry == (NUM_TX_DESC - 1))
- desc->size |= cpu_to_le32(RingEnd);
-
- wmb();
-
- desc->status = cpu_to_le32(OWNbit | INTbit | DEFbit | CRCbit | PADbit);
-
- tp->cur_tx++;
-
- SIS_W32(TxControl, 0x1a00 | CmdReset | CmdTxEnb);
-
- return 0;
-}
-
-static void sis190_free_phy(struct list_head *first_phy)
-{
- struct sis190_phy *cur, *next;
-
- list_for_each_entry_safe(cur, next, first_phy, list) {
- free(cur);
- }
-}
-
-/**
- * sis190_default_phy - Select default PHY for sis190 mac.
- * @dev: the net device to probe for
- *
- * Select first detected PHY with link as default.
- * If no one is link on, select PHY whose types is HOME as default.
- * If HOME doesn't exist, select LAN.
- */
-static u16 sis190_default_phy(struct sis190_private *tp)
-{
- struct sis190_phy *phy, *phy_home, *phy_default, *phy_lan;
- struct mii_if_info *mii_if = &tp->mii_if;
- void *ioaddr = tp->mmio_addr;
- u16 status;
-
- phy_home = phy_default = phy_lan = NULL;
-
- list_for_each_entry(phy, &tp->first_phy, list) {
- status = mdio_read_latched(ioaddr, phy->phy_id, MII_BMSR);
-
- // Link ON & Not select default PHY & not ghost PHY.
- if ((status & BMSR_LSTATUS) &&
- !phy_default &&
- (phy->type != UNKNOWN)) {
- phy_default = phy;
- } else {
- status = mdio_read(ioaddr, phy->phy_id, MII_BMCR);
- mdio_write(ioaddr, phy->phy_id, MII_BMCR,
- status | BMCR_ANENABLE | BMCR_ISOLATE);
- if (phy->type == HOME)
- phy_home = phy;
- else if (phy->type == LAN)
- phy_lan = phy;
- }
- }
-
- if (!phy_default) {
- if (phy_home)
- phy_default = phy_home;
- else if (phy_lan)
- phy_default = phy_lan;
- else
- phy_default = list_entry(&tp->first_phy,
- struct sis190_phy, list);
- }
-
- if (mii_if->phy_id != phy_default->phy_id) {
- mii_if->phy_id = phy_default->phy_id;
- DBG("sis190: Using transceiver at address %d as default.\n",
- mii_if->phy_id);
- }
-
- status = mdio_read(ioaddr, mii_if->phy_id, MII_BMCR);
- status &= (~BMCR_ISOLATE);
-
- mdio_write(ioaddr, mii_if->phy_id, MII_BMCR, status);
- status = mdio_read_latched(ioaddr, mii_if->phy_id, MII_BMSR);
-
- return status;
-}
-
-static void sis190_init_phy(struct sis190_private *tp,
- struct sis190_phy *phy, unsigned int phy_id,
- u16 mii_status)
-{
- void *ioaddr = tp->mmio_addr;
- struct mii_chip_info *p;
-
- INIT_LIST_HEAD(&phy->list);
- phy->status = mii_status;
- phy->phy_id = phy_id;
-
- phy->id[0] = mdio_read(ioaddr, phy_id, MII_PHYSID1);
- phy->id[1] = mdio_read(ioaddr, phy_id, MII_PHYSID2);
-
- for (p = mii_chip_table; p->type; p++) {
- if ((p->id[0] == phy->id[0]) &&
- (p->id[1] == (phy->id[1] & 0xfff0))) {
- break;
- }
- }
-
- if (p->id[1]) {
- phy->type = (p->type == MIX) ?
- ((mii_status & (BMSR_100FULL | BMSR_100HALF)) ?
- LAN : HOME) : p->type;
- tp->features |= p->feature;
-
- DBG("sis190: %s transceiver at address %d.\n", p->name, phy_id);
- } else {
- phy->type = UNKNOWN;
-
- DBG("sis190: unknown PHY 0x%x:0x%x transceiver at address %d\n",
- phy->id[0], (phy->id[1] & 0xfff0), phy_id);
- }
-}
-
-static void sis190_mii_probe_88e1111_fixup(struct sis190_private *tp)
-{
- if (tp->features & F_PHY_88E1111) {
- void *ioaddr = tp->mmio_addr;
- int phy_id = tp->mii_if.phy_id;
- u16 reg[2][2] = {
- { 0x808b, 0x0ce1 },
- { 0x808f, 0x0c60 }
- }, *p;
-
- p = (tp->features & F_HAS_RGMII) ? reg[0] : reg[1];
-
- mdio_write(ioaddr, phy_id, 0x1b, p[0]);
- udelay(200);
- mdio_write(ioaddr, phy_id, 0x14, p[1]);
- udelay(200);
- }
-}
-
-/**
- * sis190_mii_probe - Probe MII PHY for sis190
- * @dev: the net device to probe for
- *
- * Search for total of 32 possible mii phy addresses.
- * Identify and set current phy if found one,
- * return error if it failed to found.
- */
-static int sis190_mii_probe(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- struct mii_if_info *mii_if = &tp->mii_if;
- void *ioaddr = tp->mmio_addr;
- int phy_id;
- int rc = 0;
-
- INIT_LIST_HEAD(&tp->first_phy);
-
- for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
- struct sis190_phy *phy;
- u16 status;
-
- status = mdio_read_latched(ioaddr, phy_id, MII_BMSR);
-
- // Try next mii if the current one is not accessible.
- if (status == 0xffff || status == 0x0000)
- continue;
-
- phy = zalloc(sizeof(*phy));
- if (!phy) {
- sis190_free_phy(&tp->first_phy);
- rc = -ENOMEM;
- goto out;
- }
-
- DBG("sis190: found PHY\n");
-
- sis190_init_phy(tp, phy, phy_id, status);
-
- list_add(&tp->first_phy, &phy->list);
- }
-
- if (list_empty(&tp->first_phy)) {
- DBG("sis190: No MII transceivers found!\n");
- rc = -EIO;
- goto out;
- }
-
- /* Select default PHY for mac */
- sis190_default_phy(tp);
-
- sis190_mii_probe_88e1111_fixup(tp);
-
- mii_if->dev = dev;
- mii_if->mdio_read = __mdio_read;
- mii_if->mdio_write = __mdio_write;
- mii_if->phy_id_mask = PHY_ID_ANY;
- mii_if->reg_num_mask = MII_REG_ANY;
-out:
- return rc;
-}
-
-static void sis190_mii_remove(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
-
- sis190_free_phy(&tp->first_phy);
-}
-
-static int sis190_init_board(struct pci_device *pdev, struct net_device **netdev)
-{
- struct sis190_private *tp;
- struct net_device *dev;
- void *ioaddr;
- int rc;
-
- dev = alloc_etherdev(sizeof(*tp));
- if (!dev) {
- DBG("sis190: unable to alloc new etherdev\n");
- rc = -ENOMEM;
- goto err;
- }
-
- dev->dev = &pdev->dev;
-
- tp = netdev_priv(dev);
- memset(tp, 0, sizeof(*tp));
-
- tp->dev = dev;
-
- adjust_pci_device(pdev);
-
- ioaddr = ioremap(pdev->membase, SIS190_REGS_SIZE);
- if (!ioaddr) {
- DBG("sis190: cannot remap MMIO, aborting\n");
- rc = -EIO;
- goto err;
- }
-
- tp->pci_device = pdev;
- tp->mmio_addr = ioaddr;
-
- sis190_irq_mask_and_ack(ioaddr);
-
- sis190_soft_reset(ioaddr);
-
- *netdev = dev;
-
- return 0;
-
-err:
- return rc;
-}
-
-static void sis190_set_rgmii(struct sis190_private *tp, u8 reg)
-{
- tp->features |= (reg & 0x80) ? F_HAS_RGMII : 0;
-}
-
-static int sis190_get_mac_addr_from_eeprom(struct pci_device *pdev __unused,
- struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
- u16 sig;
- int i;
-
- DBG("sis190: Read MAC address from EEPROM\n");
-
- /* Check to see if there is a sane EEPROM */
- sig = (u16) sis190_read_eeprom(ioaddr, EEPROMSignature);
-
- if ((sig == 0xffff) || (sig == 0x0000)) {
- DBG("sis190: Error EEPROM read.\n");
- return -EIO;
- }
-
- /* Get MAC address from EEPROM */
- for (i = 0; i < ETH_ALEN / 2; i++) {
- u16 w = sis190_read_eeprom(ioaddr, EEPROMMACAddr + i);
-
- ((u16 *)dev->hw_addr)[i] = cpu_to_le16(w);
- }
-
- sis190_set_rgmii(tp, sis190_read_eeprom(ioaddr, EEPROMInfo));
-
- return 0;
-}
-
-/**
- * sis190_get_mac_addr_from_apc - Get MAC address for SiS96x model
- * @pdev: PCI device
- * @dev: network device to get address for
- *
- * SiS96x model, use APC CMOS RAM to store MAC address.
- * APC CMOS RAM is accessed through ISA bridge.
- * MAC address is read into @net_dev->dev_addr.
- */
-static int sis190_get_mac_addr_from_apc(struct pci_device *pdev,
- struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- struct pci_device *isa_bridge = NULL;
- struct device *d;
- u8 reg, tmp8;
- unsigned int i;
-
- DBG("sis190: Read MAC address from APC.\n");
-
- list_for_each_entry(d, &(pdev->dev.siblings), siblings) {
- unsigned int i;
- isa_bridge = container_of(d, struct pci_device, dev);
- for(i = 0; i < sis190_isa_bridge_driver.id_count; i++) {
- if(isa_bridge->vendor ==
- sis190_isa_bridge_driver.ids[i].vendor
- && isa_bridge->device ==
- sis190_isa_bridge_driver.ids[i].device) {
- DBG("sis190: ISA bridge found\n");
- break;
- } else {
- isa_bridge = NULL;
- }
- }
- if(isa_bridge)
- break;
- }
-
- if (!isa_bridge) {
- DBG("sis190: Can not find ISA bridge.\n");
- return -EIO;
- }
-
- /* Enable port 78h & 79h to access APC Registers. */
- pci_read_config_byte(isa_bridge, 0x48, &tmp8);
- reg = (tmp8 & ~0x02);
- pci_write_config_byte(isa_bridge, 0x48, reg);
- udelay(50);
- pci_read_config_byte(isa_bridge, 0x48, &reg);
-
- for (i = 0; i < ETH_ALEN; i++) {
- outb(0x9 + i, 0x78);
- dev->hw_addr[i] = inb(0x79);
- }
-
- outb(0x12, 0x78);
- reg = inb(0x79);
-
- sis190_set_rgmii(tp, reg);
-
- /* Restore the value to ISA Bridge */
- pci_write_config_byte(isa_bridge, 0x48, tmp8);
-
- return 0;
-}
-
-/**
- * sis190_init_rxfilter - Initialize the Rx filter
- * @dev: network device to initialize
- *
- * Set receive filter address to our MAC address
- * and enable packet filtering.
- */
-static inline void sis190_init_rxfilter(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
- u16 ctl;
- int i;
-
- ctl = SIS_R16(RxMacControl);
- /*
- * Disable packet filtering before setting filter.
- * Note: SiS's driver writes 32 bits but RxMacControl is 16 bits
- * only and followed by RxMacAddr (6 bytes). Strange. -- FR
- */
- SIS_W16(RxMacControl, ctl & ~0x0f00);
-
- for (i = 0; i < ETH_ALEN; i++)
- SIS_W8(RxMacAddr + i, dev->ll_addr[i]);
-
- SIS_W16(RxMacControl, ctl);
- SIS_PCI_COMMIT();
-}
-
-static int sis190_get_mac_addr(struct pci_device *pdev,
- struct net_device *dev)
-{
- int rc;
-
- rc = sis190_get_mac_addr_from_eeprom(pdev, dev);
- if (rc < 0) {
- u8 reg;
-
- pci_read_config_byte(pdev, 0x73, &reg);
-
- if (reg & 0x00000001)
- rc = sis190_get_mac_addr_from_apc(pdev, dev);
- }
- return rc;
-}
-
-static void sis190_set_speed_auto(struct net_device *dev)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
- int phy_id = tp->mii_if.phy_id;
- int val;
-
- DBG("sis190: Enabling Auto-negotiation.\n");
-
- val = mdio_read(ioaddr, phy_id, MII_ADVERTISE);
-
- // Enable 10/100 Full/Half Mode, leave MII_ADVERTISE bit4:0
- // unchanged.
- mdio_write(ioaddr, phy_id, MII_ADVERTISE, (val & ADVERTISE_SLCT) |
- ADVERTISE_100FULL | ADVERTISE_10FULL |
- ADVERTISE_100HALF | ADVERTISE_10HALF);
-
- // Enable 1000 Full Mode.
- mdio_write(ioaddr, phy_id, MII_CTRL1000, ADVERTISE_1000FULL);
-
- // Enable auto-negotiation and restart auto-negotiation.
- mdio_write(ioaddr, phy_id, MII_BMCR,
- BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET);
-}
-
-static void sis190_irq(struct net_device *dev, int enable)
-{
- struct sis190_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
-
- SIS_W32(IntrStatus, 0xffffffff);
-
- if (enable == 0)
- SIS_W32(IntrMask, 0x00);
- else
- SIS_W32(IntrMask, sis190_intr_mask);
-
- SIS_PCI_COMMIT();
-}
-
-static struct net_device_operations sis190_netdev_ops = {
- .open = sis190_open,
- .close = sis190_close,
- .poll = sis190_poll,
- .transmit = sis190_transmit,
- .irq = sis190_irq,
-};
-
-static int sis190_probe(struct pci_device *pdev,
- const struct pci_device_id *ent __unused)
-{
- struct sis190_private *tp;
- struct net_device *dev;
- void *ioaddr;
- int rc;
-
- rc = sis190_init_board(pdev, &dev);
- if (rc < 0)
- goto out;
-
- pci_set_drvdata(pdev, dev);
-
- tp = netdev_priv(dev);
- ioaddr = tp->mmio_addr;
-
- rc = sis190_get_mac_addr(pdev, dev);
- if (rc < 0)
- goto err;
-
- rc = sis190_mii_probe(dev);
- if (rc < 0)
- goto err;
-
- rc = register_netdev(dev);
- if (rc < 0)
- goto err;
-
- sis190_set_speed_auto(dev);
- sis190_phy_task(tp);
-
- netdev_init(dev, &sis190_netdev_ops);
- netdev_link_down(dev);
-out:
- return rc;
-
-err:
- sis190_mii_remove(dev);
- iounmap(tp->mmio_addr);
- goto out;
-}
-
-static void sis190_remove(struct pci_device *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct sis190_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
-
- sis190_mii_remove(dev);
-
- /* shutdown chip, disable interrupts, etc */
- sis190_soft_reset(ioaddr);
-
- iounmap(tp->mmio_addr);
-
- unregister_netdev(dev);
- netdev_nullify(dev);
- netdev_put(dev);
-}
-
-struct pci_driver sis190_pci_driver __pci_driver = {
- .ids = sis190_pci_tbl,
- .id_count = (sizeof(sis190_pci_tbl) / sizeof(sis190_pci_tbl[0])),
- .probe = sis190_probe,
- .remove = sis190_remove,
-};