Re: [PATCH] Support for new rtl810x hardware

[Francois Romieu <romieu@fr.zoreil.com>]

Francois Romieu <romieu@fr.zoreil.com> :
[...]

I have published a new serie at:

http://userweb.kernel.org/~romieu/r8169/2.6.27-rc1

It does not include the 8168 chipsets specific bits which are currently
in the r8169 branch at git.kernel.org.

I'd appreciate if you could give the serie a try and tell me if it is
ok to add your s-o-b to the patch below. It is synched with version
1.008.00 of Realtek 8101 driver (which exhibits some phy_config
changes).

I have changed the identifiers back to those used in the previous
r810[12] support patch that I had pusblished the 2008/07/24 (it helps
a lot when I have to compare locally). The translation works as:

Your                | Mine                | Realtek's
--------------------+---------------------+-------------
0x7cf00000          | ...                 | ...
0x34800000          |                     |
RTL_GIGA_MAC_VER_24 | RTL_GIGA_MAC_VER_07 | CFG_METHOD_3
--------------------+---------------------+-------------
0x7cf00000          |                     |
0x24800000          |                     |
RTL_GIGA_MAC_VER_24 | RTL_GIGA_MAC_VER_07 | CFG_METHOD_3
--------------------+---------------------+-------------
0x7cf00000          |                     |
0x34900000          |                     |
RTL_GIGA_MAC_VER_25 | RTL_GIGA_MAC_VER_08 | CFG_METHOD_4
--------------------+---------------------+-------------
0x7cf00000          |                     |
0x24900000          |                     |
RTL_GIGA_MAC_VER_25 | RTL_GIGA_MAC_VER_08 | CFG_METHOD_4
--------------------+---------------------+-------------
                    | 0x7cf00000          |
                    | 0x34a00000          |
                    | RTL_GIGA_MAC_VER_09 | CFG_METHOD_5
--------------------+---------------------+-------------
                    | 0x7cf00000          |
                    | 0x24a00000          |
                    | RTL_GIGA_MAC_VER_09 | CFG_METHOD_5
--------------------+---------------------+-------------
0x7c800000          |                     |
0x34800000          |                     |
RTL_GIGA_MAC_VER_26 | RTL_GIGA_MAC_VER_09 | CFG_METHOD_5
--------------------+---------------------+-------------
0x7c800000          |                     |
0x24800000          |                     |
RTL_GIGA_MAC_VER_26 | RTL_GIGA_MAC_VER_09 | CFG_METHOD_5
--------------------+---------------------+-------------

The 0x7c800000 mask is more or less reserved for the fallback,
whence the introduction of the 0x34a00000 identifier.

I have not understood under which basis you made a difference
between 8102e and 8102el. As far as I can tell Realtek's driver
does not disambiguate either: 0x34a00000 (resp. 0x34800000) and
0x24a00000 (resp. 0x24800000) both fall under CFG_METHOD_5
(resp. CFG_METHOD_3). Did I miss something or was is more or
less arbitrary ?

RTL_GIGA_MAC_VER_10 (0x34300000) has been added. It does not
seem to require a lot of support.

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 8bf1e75..2c244df 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -96,6 +96,10 @@ enum mac_version {
 	RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
 	RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
 	RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
+	RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
+	RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
+	RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
+	RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
 	RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
 	RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
 	RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
@@ -122,6 +126,10 @@ static const struct {
 	_R("RTL8169sb/8110sb",	RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
 	_R("RTL8169sc/8110sc",	RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
 	_R("RTL8169sc/8110sc",	RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
+	_R("RTL8102e",		RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
+	_R("RTL8102e",		RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
+	_R("RTL8102e",		RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
+	_R("RTL8101e",		RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
 	_R("RTL8168b/8111b",	RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
 	_R("RTL8168b/8111b",	RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
 	_R("RTL8101e",		RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
@@ -836,8 +844,12 @@ static int rtl8169_set_speed_xmii(struct net_device *dev,
 		}
 	}
 
-	/* The 8100e/8101e do Fast Ethernet only. */
-	if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+	/* The 8100e/8101e/8102e do Fast Ethernet only. */
+	if ((tp->mac_version == RTL_GIGA_MAC_VER_07) ||
+	    (tp->mac_version == RTL_GIGA_MAC_VER_08) ||
+	    (tp->mac_version == RTL_GIGA_MAC_VER_09) ||
+	    (tp->mac_version == RTL_GIGA_MAC_VER_10) ||
+	    (tp->mac_version == RTL_GIGA_MAC_VER_13) ||
 	    (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
 	    (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
 	    (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
@@ -1211,8 +1223,17 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
 		{ 0x7c800000, 0x30000000,	RTL_GIGA_MAC_VER_11 },
 
 		/* 8101 family. */
+		{ 0x7cf00000, 0x34a00000,	RTL_GIGA_MAC_VER_09 },
+		{ 0x7cf00000, 0x24a00000,	RTL_GIGA_MAC_VER_09 },
+		{ 0x7cf00000, 0x34900000,	RTL_GIGA_MAC_VER_08 },
+		{ 0x7cf00000, 0x24900000,	RTL_GIGA_MAC_VER_08 },
+		{ 0x7cf00000, 0x34800000,	RTL_GIGA_MAC_VER_07 },
+		{ 0x7cf00000, 0x24800000,	RTL_GIGA_MAC_VER_07 },
 		{ 0x7cf00000, 0x34000000,	RTL_GIGA_MAC_VER_13 },
+		{ 0x7cf00000, 0x34300000,	RTL_GIGA_MAC_VER_10 },
 		{ 0x7cf00000, 0x34200000,	RTL_GIGA_MAC_VER_16 },
+		{ 0x7c800000, 0x34800000,	RTL_GIGA_MAC_VER_09 },
+		{ 0x7c800000, 0x24800000,	RTL_GIGA_MAC_VER_09 },
 		{ 0x7c800000, 0x34000000,	RTL_GIGA_MAC_VER_16 },
 		/* FIXME: where did these entries come from ? -- FR */
 		{ 0xfc800000, 0x38800000,	RTL_GIGA_MAC_VER_15 },
@@ -1374,6 +1395,22 @@ static void rtl8168cx_hw_phy_config(void __iomem *ioaddr)
 	rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
 }
 
+static void rtl8102e_hw_phy_config(void __iomem *ioaddr)
+{
+	struct phy_reg phy_reg_init[] = {
+		{ 0x1f, 0x0003 },
+		{ 0x08, 0x441d },
+		{ 0x01, 0x9100 },
+		{ 0x1f, 0x0000 }
+	};
+
+	mdio_write(ioaddr, 0x1f, 0x0000);
+	mdio_patch(ioaddr, 0x11, 1 << 12);
+	mdio_patch(ioaddr, 0x19, 1 << 13);
+
+	rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
 static void rtl_hw_phy_config(struct net_device *dev)
 {
 	struct rtl8169_private *tp = netdev_priv(dev);
@@ -1391,6 +1428,11 @@ static void rtl_hw_phy_config(struct net_device *dev)
 	case RTL_GIGA_MAC_VER_04:
 		rtl8169sb_hw_phy_config(ioaddr);
 		break;
+	case RTL_GIGA_MAC_VER_07:
+	case RTL_GIGA_MAC_VER_08:
+	case RTL_GIGA_MAC_VER_09:
+		rtl8102e_hw_phy_config(ioaddr);
+		break;
 	case RTL_GIGA_MAC_VER_18:
 		rtl8168cp_hw_phy_config(ioaddr);
 		break;
@@ -2251,6 +2293,70 @@ static void rtl_hw_start_8168(struct net_device *dev)
 	RTL_W16(IntrMask, tp->intr_event);
 }
 
+#define R810X_CPCMD_QUIRK_MASK (\
+	EnableBist | \
+	Mac_dbgo_oe | \
+	Force_half_dup | \
+	Force_half_dup | \
+	Force_txflow_en | \
+	Cxpl_dbg_sel | \
+	ASF | \
+	PktCntrDisable | \
+	PCIDAC | \
+	PCIMulRW)
+
+static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+	static struct ephy_info e_info_8102e_1[] = {
+		{ 0x01,	0, 0x6e65 },
+		{ 0x02,	0, 0x091f },
+		{ 0x03,	0, 0xc2f9 },
+		{ 0x06,	0, 0xafb5 },
+		{ 0x07,	0, 0x0e00 },
+		{ 0x19,	0, 0xec80 },
+		{ 0x01,	0, 0x2e65 },
+		{ 0x01,	0, 0x6e65 }
+	};
+	u8 cfg1;
+
+	rtl_csi_access_enable(ioaddr);
+
+	RTL_W8(DBG_REG, FIX_NAK_1);
+
+	rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+	RTL_W8(Config1,
+	       LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
+	RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+	cfg1 = RTL_R8(Config1);
+	if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
+		RTL_W8(Config1, cfg1 & ~LEDS0);
+
+	RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
+
+	rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
+}
+
+static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+	rtl_csi_access_enable(ioaddr);
+
+	rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+	RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
+	RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+	RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
+}
+
+static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+	rtl_hw_start_8102e_2(ioaddr, pdev);
+
+	rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
+}
+
 static void rtl_hw_start_8101(struct net_device *dev)
 {
 	struct rtl8169_private *tp = netdev_priv(dev);
@@ -2267,6 +2373,20 @@ static void rtl_hw_start_8101(struct net_device *dev)
 		}
 	}
 
+	switch (tp->mac_version) {
+	case RTL_GIGA_MAC_VER_07:
+		rtl_hw_start_8102e_1(ioaddr, pdev);
+		break;
+
+	case RTL_GIGA_MAC_VER_08:
+		rtl_hw_start_8102e_3(ioaddr, pdev);
+		break;
+
+	case RTL_GIGA_MAC_VER_09:
+		rtl_hw_start_8102e_2(ioaddr, pdev);
+		break;
+	}
+
 	RTL_W8(Cfg9346, Cfg9346_Unlock);
 
 	RTL_W8(EarlyTxThres, EarlyTxThld);
-- 
Ueimor