Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem

Conflicts:
	drivers/net/wireless/libertas/if_cs.c
	drivers/net/wireless/rtlwifi/pci.c
	net/bluetooth/l2cap_sock.c

4 files changed, 153 insertions, 71 deletions

diff --git a/drivers/ssb/driver_chipcommon.c b/drivers/ssb/driver_chipcommon.c
index 7c031fdc820..06d15b6f221 100644
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -46,40 +46,66 @@ void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
 	if (!ccdev)
 		return;
 	bus = ccdev->bus;
+
+	/* We support SLOW only on 6..9 */
+	if (ccdev->id.revision >= 10 && mode == SSB_CLKMODE_SLOW)
+		mode = SSB_CLKMODE_DYNAMIC;
+
+	if (cc->capabilities & SSB_CHIPCO_CAP_PMU)
+		return; /* PMU controls clockmode, separated function needed */
+	SSB_WARN_ON(ccdev->id.revision >= 20);
+
 	/* chipcommon cores prior to rev6 don't support dynamic clock control */
 	if (ccdev->id.revision < 6)
 		return;
-	/* chipcommon cores rev10 are a whole new ball game */
+
+	/* ChipCommon cores rev10+ need testing */
 	if (ccdev->id.revision >= 10)
 		return;
+
 	if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
 		return;
 
 	switch (mode) {
-	case SSB_CLKMODE_SLOW:
+	case SSB_CLKMODE_SLOW: /* For revs 6..9 only */
 		tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
 		tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW;
 		chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
 		break;
 	case SSB_CLKMODE_FAST:
-		ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */
-		tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
-		tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
-		tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL;
-		chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+		if (ccdev->id.revision < 10) {
+			ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */
+			tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+			tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+			tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL;
+			chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+		} else {
+			chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL,
+				(chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) |
+				 SSB_CHIPCO_SYSCLKCTL_FORCEHT));
+			/* udelay(150); TODO: not available in early init */
+		}
 		break;
 	case SSB_CLKMODE_DYNAMIC:
-		tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
-		tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
-		tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL;
-		tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
-		if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL)
-			tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
-		chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
-
-		/* for dynamic control, we have to release our xtal_pu "force on" */
-		if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL)
-			ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0);
+		if (ccdev->id.revision < 10) {
+			tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+			tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+			tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL;
+			tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
+			if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) !=
+			    SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL)
+				tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
+			chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+
+			/* For dynamic control, we have to release our xtal_pu
+			 * "force on" */
+			if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL)
+				ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0);
+		} else {
+			chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL,
+				(chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) &
+				 ~SSB_CHIPCO_SYSCLKCTL_FORCEHT));
+		}
 		break;
 	default:
 		SSB_WARN_ON(1);
@@ -260,6 +286,12 @@ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
 	if (cc->dev->id.revision >= 11)
 		cc->status = chipco_read32(cc, SSB_CHIPCO_CHIPSTAT);
 	ssb_dprintk(KERN_INFO PFX "chipcommon status is 0x%x\n", cc->status);
+
+	if (cc->dev->id.revision >= 20) {
+		chipco_write32(cc, SSB_CHIPCO_GPIOPULLUP, 0);
+		chipco_write32(cc, SSB_CHIPCO_GPIOPULLDOWN, 0);
+	}
+
 	ssb_pmu_init(cc);
 	chipco_powercontrol_init(cc);
 	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
diff --git a/drivers/ssb/driver_chipcommon_pmu.c b/drivers/ssb/driver_chipcommon_pmu.c
index 5732bb2c357..305ade7825f 100644
--- a/drivers/ssb/driver_chipcommon_pmu.c
+++ b/drivers/ssb/driver_chipcommon_pmu.c
@@ -423,6 +423,8 @@ static void ssb_pmu_resources_init(struct ssb_chipcommon *cc)
 
 	switch (bus->chip_id) {
 	case 0x4312:
+		 min_msk = 0xCBB;
+		 break;
 	case 0x4322:
 		/* We keep the default settings:
 		 * min_msk = 0xCBB
diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c
index 1ba9f0ee6f9..8fde1220bc8 100644
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
@@ -21,6 +21,8 @@ static u16 ssb_pcie_mdio_read(struct ssb_pcicore *pc, u8 device, u8 address);
 static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device,
 				u8 address, u16 data);
 
+static void ssb_commit_settings(struct ssb_bus *bus);
+
 static inline
 u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset)
 {
@@ -412,6 +414,16 @@ static int pcicore_is_in_hostmode(struct ssb_pcicore *pc)
  * Workarounds.
  **************************************************/
 
+static void ssb_pcicore_fix_sprom_core_index(struct ssb_pcicore *pc)
+{
+	u16 tmp = pcicore_read16(pc, SSB_PCICORE_SPROM(0));
+	if (((tmp & 0xF000) >> 12) != pc->dev->core_index) {
+		tmp &= ~0xF000;
+		tmp |= (pc->dev->core_index << 12);
+		pcicore_write16(pc, SSB_PCICORE_SPROM(0), tmp);
+	}
+}
+
 static u8 ssb_pcicore_polarity_workaround(struct ssb_pcicore *pc)
 {
 	return (ssb_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80;
@@ -430,6 +442,76 @@ static void ssb_pcicore_serdes_workaround(struct ssb_pcicore *pc)
 		ssb_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000);
 }
 
+static void ssb_pcicore_pci_setup_workarounds(struct ssb_pcicore *pc)
+{
+	struct ssb_device *pdev = pc->dev;
+	struct ssb_bus *bus = pdev->bus;
+	u32 tmp;
+
+	tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
+	tmp |= SSB_PCICORE_SBTOPCI_PREF;
+	tmp |= SSB_PCICORE_SBTOPCI_BURST;
+	pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
+
+	if (pdev->id.revision < 5) {
+		tmp = ssb_read32(pdev, SSB_IMCFGLO);
+		tmp &= ~SSB_IMCFGLO_SERTO;
+		tmp |= 2;
+		tmp &= ~SSB_IMCFGLO_REQTO;
+		tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT;
+		ssb_write32(pdev, SSB_IMCFGLO, tmp);
+		ssb_commit_settings(bus);
+	} else if (pdev->id.revision >= 11) {
+		tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
+		tmp |= SSB_PCICORE_SBTOPCI_MRM;
+		pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
+	}
+}
+
+static void ssb_pcicore_pcie_setup_workarounds(struct ssb_pcicore *pc)
+{
+	u32 tmp;
+	u8 rev = pc->dev->id.revision;
+
+	if (rev == 0 || rev == 1) {
+		/* TLP Workaround register. */
+		tmp = ssb_pcie_read(pc, 0x4);
+		tmp |= 0x8;
+		ssb_pcie_write(pc, 0x4, tmp);
+	}
+	if (rev == 1) {
+		/* DLLP Link Control register. */
+		tmp = ssb_pcie_read(pc, 0x100);
+		tmp |= 0x40;
+		ssb_pcie_write(pc, 0x100, tmp);
+	}
+
+	if (rev == 0) {
+		const u8 serdes_rx_device = 0x1F;
+
+		ssb_pcie_mdio_write(pc, serdes_rx_device,
+					2 /* Timer */, 0x8128);
+		ssb_pcie_mdio_write(pc, serdes_rx_device,
+					6 /* CDR */, 0x0100);
+		ssb_pcie_mdio_write(pc, serdes_rx_device,
+					7 /* CDR BW */, 0x1466);
+	} else if (rev == 3 || rev == 4 || rev == 5) {
+		/* TODO: DLLP Power Management Threshold */
+		ssb_pcicore_serdes_workaround(pc);
+		/* TODO: ASPM */
+	} else if (rev == 7) {
+		/* TODO: No PLL down */
+	}
+
+	if (rev >= 6) {
+		/* Miscellaneous Configuration Fixup */
+		tmp = pcicore_read16(pc, SSB_PCICORE_SPROM(5));
+		if (!(tmp & 0x8000))
+			pcicore_write16(pc, SSB_PCICORE_SPROM(5),
+					tmp | 0x8000);
+	}
+}
+
 /**************************************************
  * Generic and Clientmode operation code.
  **************************************************/
@@ -449,6 +531,8 @@ void ssb_pcicore_init(struct ssb_pcicore *pc)
 	if (!ssb_device_is_enabled(dev))
 		ssb_device_enable(dev, 0);
 
+	ssb_pcicore_fix_sprom_core_index(pc);
+
 #ifdef CONFIG_SSB_PCICORE_HOSTMODE
 	pc->hostmode = pcicore_is_in_hostmode(pc);
 	if (pc->hostmode)
@@ -457,7 +541,10 @@ void ssb_pcicore_init(struct ssb_pcicore *pc)
 	if (!pc->hostmode)
 		ssb_pcicore_init_clientmode(pc);
 
+	/* Additional always once-executed workarounds */
 	ssb_pcicore_serdes_workaround(pc);
+	/* TODO: ASPM */
+	/* TODO: Clock Request Update */
 }
 
 static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address)
@@ -522,7 +609,7 @@ static u16 ssb_pcie_mdio_read(struct ssb_pcicore *pc, u8 device, u8 address)
 	pcicore_write32(pc, mdio_data, v);
 	/* Wait for the device to complete the transaction */
 	udelay(10);
-	for (i = 0; i < 200; i++) {
+	for (i = 0; i < max_retries; i++) {
 		v = pcicore_read32(pc, mdio_control);
 		if (v & 0x100 /* Trans complete */) {
 			udelay(10);
@@ -646,48 +733,10 @@ int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
 	if (pc->setup_done)
 		goto out;
 	if (pdev->id.coreid == SSB_DEV_PCI) {
-		tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
-		tmp |= SSB_PCICORE_SBTOPCI_PREF;
-		tmp |= SSB_PCICORE_SBTOPCI_BURST;
-		pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
-
-		if (pdev->id.revision < 5) {
-			tmp = ssb_read32(pdev, SSB_IMCFGLO);
-			tmp &= ~SSB_IMCFGLO_SERTO;
-			tmp |= 2;
-			tmp &= ~SSB_IMCFGLO_REQTO;
-			tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT;
-			ssb_write32(pdev, SSB_IMCFGLO, tmp);
-			ssb_commit_settings(bus);
-		} else if (pdev->id.revision >= 11) {
-			tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
-			tmp |= SSB_PCICORE_SBTOPCI_MRM;
-			pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
-		}
+		ssb_pcicore_pci_setup_workarounds(pc);
 	} else {
 		WARN_ON(pdev->id.coreid != SSB_DEV_PCIE);
-		//TODO: Better make defines for all these magic PCIE values.
-		if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) {
-			/* TLP Workaround register. */
-			tmp = ssb_pcie_read(pc, 0x4);
-			tmp |= 0x8;
-			ssb_pcie_write(pc, 0x4, tmp);
-		}
-		if (pdev->id.revision == 0) {
-			const u8 serdes_rx_device = 0x1F;
-
-			ssb_pcie_mdio_write(pc, serdes_rx_device,
-					    2 /* Timer */, 0x8128);
-			ssb_pcie_mdio_write(pc, serdes_rx_device,
-					    6 /* CDR */, 0x0100);
-			ssb_pcie_mdio_write(pc, serdes_rx_device,
-					    7 /* CDR BW */, 0x1466);
-		} else if (pdev->id.revision == 1) {
-			/* DLLP Link Control register. */
-			tmp = ssb_pcie_read(pc, 0x100);
-			tmp |= 0x40;
-			ssb_pcie_write(pc, 0x100, tmp);
-		}
+		ssb_pcicore_pcie_setup_workarounds(pc);
 	}
 	pc->setup_done = 1;
 out:
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index e05ba6eefc7..ad3da93a428 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1117,23 +1117,22 @@ static u32 ssb_tmslow_reject_bitmask(struct ssb_device *dev)
 {
 	u32 rev = ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV;
 
-	/* The REJECT bit changed position in TMSLOW between
-	 * Backplane revisions. */
+	/* The REJECT bit seems to be different for Backplane rev 2.3 */
 	switch (rev) {
 	case SSB_IDLOW_SSBREV_22:
-		return SSB_TMSLOW_REJECT_22;
+	case SSB_IDLOW_SSBREV_24:
+	case SSB_IDLOW_SSBREV_26:
+		return SSB_TMSLOW_REJECT;
 	case SSB_IDLOW_SSBREV_23:
 		return SSB_TMSLOW_REJECT_23;
-	case SSB_IDLOW_SSBREV_24:     /* TODO - find the proper REJECT bits */
-	case SSB_IDLOW_SSBREV_25:     /* same here */
-	case SSB_IDLOW_SSBREV_26:     /* same here */
+	case SSB_IDLOW_SSBREV_25:     /* TODO - find the proper REJECT bit */
 	case SSB_IDLOW_SSBREV_27:     /* same here */
-		return SSB_TMSLOW_REJECT_23;	/* this is a guess */
+		return SSB_TMSLOW_REJECT;	/* this is a guess */
 	default:
 		printk(KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev);
 		WARN_ON(1);
 	}
-	return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23);
+	return (SSB_TMSLOW_REJECT | SSB_TMSLOW_REJECT_23);
 }
 
 int ssb_device_is_enabled(struct ssb_device *dev)
@@ -1309,20 +1308,20 @@ EXPORT_SYMBOL(ssb_bus_may_powerdown);
 
 int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl)
 {
-	struct ssb_chipcommon *cc;
 	int err;
 	enum ssb_clkmode mode;
 
 	err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
 	if (err)
 		goto error;
-	cc = &bus->chipco;
-	mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST;
-	ssb_chipco_set_clockmode(cc, mode);
 
 #ifdef CONFIG_SSB_DEBUG
 	bus->powered_up = 1;
 #endif
+
+	mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST;
+	ssb_chipco_set_clockmode(&bus->chipco, mode);
+
 	return 0;
 error:
 	ssb_printk(KERN_ERR PFX "Bus powerup failed\n");