diff options
Diffstat (limited to 'gpxe/src/drivers/net/sis190.c')
| -rw-r--r-- | gpxe/src/drivers/net/sis190.c | 1179 |
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, ®); - - 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, ®); - - 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, -}; |