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r8169: more magic during initialization of the hardware 

Mostly taken from Realtek's driver.

It's a bit yucky but the original is even worse.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
hifive-unleashed-5.1
Francois Romieu 2006-11-02 00:10:16 +01:00 committed by Francois Romieu
parent aae343d493
commit 9cb427b6ff
1 changed files with 44 additions and 14 deletions
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58
drivers/net/r8169.c
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@ -1815,12 +1815,25 @@ static void rtl8169_hw_reset(void __iomem *ioaddr)
RTL_R8(ChipCmd);
}
static void
rtl8169_hw_start(struct net_device *dev)
static void rtl8169_set_rx_tx_config_registers(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
u32 cfg = rtl8169_rx_config;
cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
RTL_W32(RxConfig, cfg);
/* Set DMA burst size and Interframe Gap Time */
RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
(InterFrameGap << TxInterFrameGapShift));
}
static void rtl8169_hw_start(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
struct pci_dev *pdev = tp->pci_dev;
u16 cmd;
u32 i;
/* Soft reset the chip. */
@ -1833,6 +1846,11 @@ rtl8169_hw_start(struct net_device *dev)
msleep_interruptible(1);
}
if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
}
if (tp->mac_version == RTL_GIGA_MAC_VER_13) {
pci_write_config_word(pdev, 0x68, 0x00);
pci_write_config_word(pdev, 0x69, 0x08);
@ -1840,8 +1858,6 @@ rtl8169_hw_start(struct net_device *dev)
/* Undocumented stuff. */
if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
u16 cmd;
/* Realtek's r1000_n.c driver uses '&& 0x01' here. Well... */
if ((RTL_R8(Config2) & 0x07) & 0x01)
RTL_W32(0x7c, 0x0007ffff);
@ -1853,23 +1869,29 @@ rtl8169_hw_start(struct net_device *dev)
pci_write_config_word(pdev, PCI_COMMAND, cmd);
}
RTL_W8(Cfg9346, Cfg9346_Unlock);
if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
(tp->mac_version == RTL_GIGA_MAC_VER_02) ||
(tp->mac_version == RTL_GIGA_MAC_VER_03) ||
(tp->mac_version == RTL_GIGA_MAC_VER_04))
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
RTL_W8(EarlyTxThres, EarlyTxThld);
/* Low hurts. Let's disable the filtering. */
RTL_W16(RxMaxSize, 16383);
/* Set Rx Config register */
i = rtl8169_rx_config |
(RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
RTL_W32(RxConfig, i);
if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
(tp->mac_version == RTL_GIGA_MAC_VER_02) ||
(tp->mac_version == RTL_GIGA_MAC_VER_03) ||
(tp->mac_version == RTL_GIGA_MAC_VER_04))
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
rtl8169_set_rx_tx_config_registers(tp);
/* Set DMA burst size and Interframe Gap Time */
RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
(InterFrameGap << TxInterFrameGapShift));
cmd = RTL_R16(CPlusCmd);
RTL_W16(CPlusCmd, cmd);
tp->cp_cmd |= RTL_R16(CPlusCmd) | PCIMulRW;
tp->cp_cmd |= cmd | PCIMulRW;
if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
(tp->mac_version == RTL_GIGA_MAC_VER_03)) {
@ -1895,7 +1917,15 @@ rtl8169_hw_start(struct net_device *dev)
RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr & DMA_32BIT_MASK));
RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr >> 32));
RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr & DMA_32BIT_MASK));
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
(tp->mac_version != RTL_GIGA_MAC_VER_02) &&
(tp->mac_version != RTL_GIGA_MAC_VER_03) &&
(tp->mac_version != RTL_GIGA_MAC_VER_04)) {
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
rtl8169_set_rx_tx_config_registers(tp);
}
RTL_W8(Cfg9346, Cfg9346_Lock);
/* Initially a 10 us delay. Turned it into a PCI commit. - FR */