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authorStefano Brivio <stefano.brivio@polimi.it>2006-10-15 23:18:11 -0500
committerJeff Garzik <jeff@garzik.org>2006-12-02 00:11:58 -0500
commitf3d1fca3eb05cf6ff3879a385a15d24fbf556c57 (patch)
treef8625cb837369a8ee7755f4d0639a9abe36fd860 /drivers/net/wireless/bcm43xx/bcm43xx_main.c
parent995cdaa45b1faf8f4472e4b4c6027dc685ae1b54 (diff)
downloadlinux-linaro-android-f3d1fca3eb05cf6ff3879a385a15d24fbf556c57.tar.gz
[PATCH] bcm43xx: add PCI-E code
The current bcm43xx driver does not contain code to handle PCI-E interfaces such as the BCM4311 and BCM4312. This patch, originally written by Stefano Brivio adds the necessary code to enable these interfaces. Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_main.c')
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_main.c143
1 files changed, 106 insertions, 37 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index 2ffc0d5b54e..c6bd86889f1 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -130,6 +130,10 @@ MODULE_PARM_DESC(fwpostfix, "Postfix for .fw files. Useful for debugging.");
{ PCI_VENDOR_ID_BROADCOM, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
/* Broadcom 4307 802.11b */
{ PCI_VENDOR_ID_BROADCOM, 0x4307, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ /* Broadcom 4311 802.11(a)/b/g */
+ { PCI_VENDOR_ID_BROADCOM, 0x4311, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ /* Broadcom 4312 802.11a/b/g */
+ { PCI_VENDOR_ID_BROADCOM, 0x4312, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
/* Broadcom 4318 802.11b/g */
{ PCI_VENDOR_ID_BROADCOM, 0x4318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
/* Broadcom 4319 802.11a/b/g */
@@ -2600,8 +2604,9 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
/* fetch sb_id_hi from core information registers */
sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
- core_id = (sb_id_hi & 0xFFF0) >> 4;
- core_rev = (sb_id_hi & 0xF);
+ core_id = (sb_id_hi & 0x8FF0) >> 4;
+ core_rev = (sb_id_hi & 0x7000) >> 8;
+ core_rev |= (sb_id_hi & 0xF);
core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
/* if present, chipcommon is always core 0; read the chipid from it */
@@ -2711,6 +2716,7 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
core = NULL;
switch (core_id) {
case BCM43xx_COREID_PCI:
+ case BCM43xx_COREID_PCIE:
core = &bcm->core_pci;
if (core->available) {
printk(KERN_WARNING PFX "Multiple PCI cores found.\n");
@@ -2749,12 +2755,12 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
case 6:
case 7:
case 9:
+ case 10:
break;
default:
- printk(KERN_ERR PFX "Error: Unsupported 80211 core revision %u\n",
+ printk(KERN_WARNING PFX
+ "Unsupported 80211 core revision %u\n",
core_rev);
- err = -ENODEV;
- goto out;
}
bcm->nr_80211_available++;
core->priv = ext_80211;
@@ -2868,16 +2874,11 @@ static int bcm43xx_wireless_core_init(struct bcm43xx_private *bcm,
u32 sbimconfiglow;
u8 limit;
- if (bcm->chip_rev < 5) {
+ if (bcm->core_pci.rev <= 5 && bcm->core_pci.id != BCM43xx_COREID_PCIE) {
sbimconfiglow = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
- if (bcm->bustype == BCM43xx_BUSTYPE_PCI)
- sbimconfiglow |= 0x32;
- else if (bcm->bustype == BCM43xx_BUSTYPE_SB)
- sbimconfiglow |= 0x53;
- else
- assert(0);
+ sbimconfiglow |= 0x32;
bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, sbimconfiglow);
}
@@ -3004,22 +3005,64 @@ static void bcm43xx_pcicore_broadcast_value(struct bcm43xx_private *bcm,
static int bcm43xx_pcicore_commit_settings(struct bcm43xx_private *bcm)
{
- int err;
- struct bcm43xx_coreinfo *old_core;
+ int err = 0;
- old_core = bcm->current_core;
- err = bcm43xx_switch_core(bcm, &bcm->core_pci);
- if (err)
- goto out;
+ bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
- bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
+ if (bcm->core_chipcommon.available) {
+ err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon);
+ if (err)
+ goto out;
+
+ bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
+
+ /* this function is always called when a PCI core is mapped */
+ err = bcm43xx_switch_core(bcm, &bcm->core_pci);
+ if (err)
+ goto out;
+ } else
+ bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
+
+ bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
- bcm43xx_switch_core(bcm, old_core);
- assert(err == 0);
out:
return err;
}
+static u32 bcm43xx_pcie_reg_read(struct bcm43xx_private *bcm, u32 address)
+{
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_ADDR, address);
+ return bcm43xx_read32(bcm, BCM43xx_PCIECORE_REG_DATA);
+}
+
+static void bcm43xx_pcie_reg_write(struct bcm43xx_private *bcm, u32 address,
+ u32 data)
+{
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_ADDR, address);
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_DATA, data);
+}
+
+static void bcm43xx_pcie_mdio_write(struct bcm43xx_private *bcm, u8 dev, u8 reg,
+ u16 data)
+{
+ int i;
+
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_CTL, 0x0082);
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_DATA, BCM43xx_PCIE_MDIO_ST |
+ BCM43xx_PCIE_MDIO_WT | (dev << BCM43xx_PCIE_MDIO_DEV) |
+ (reg << BCM43xx_PCIE_MDIO_REG) | BCM43xx_PCIE_MDIO_TA |
+ data);
+ udelay(10);
+
+ for (i = 0; i < 10; i++) {
+ if (bcm43xx_read32(bcm, BCM43xx_PCIECORE_MDIO_CTL) &
+ BCM43xx_PCIE_MDIO_TC)
+ break;
+ msleep(1);
+ }
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_CTL, 0);
+}
+
/* Make an I/O Core usable. "core_mask" is the bitmask of the cores to enable.
* To enable core 0, pass a core_mask of 1<<0
*/
@@ -3039,7 +3082,8 @@ static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm,
if (err)
goto out;
- if (bcm->core_pci.rev < 6) {
+ if (bcm->current_core->rev < 6 ||
+ bcm->current_core->id == BCM43xx_COREID_PCI) {
value = bcm43xx_read32(bcm, BCM43xx_CIR_SBINTVEC);
value |= (1 << backplane_flag_nr);
bcm43xx_write32(bcm, BCM43xx_CIR_SBINTVEC, value);
@@ -3057,21 +3101,46 @@ static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm,
}
}
- value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
- value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST;
- bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
-
- if (bcm->core_pci.rev < 5) {
- value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
- value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT)
- & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
- value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT)
- & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
- bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value);
- err = bcm43xx_pcicore_commit_settings(bcm);
- assert(err == 0);
+ if (bcm->current_core->id == BCM43xx_COREID_PCI) {
+ value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
+ value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST;
+ bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
+
+ if (bcm->current_core->rev < 5) {
+ value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
+ value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT)
+ & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
+ value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT)
+ & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
+ bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value);
+ err = bcm43xx_pcicore_commit_settings(bcm);
+ assert(err == 0);
+ } else if (bcm->current_core->rev >= 11) {
+ value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
+ value |= BCM43xx_SBTOPCI2_MEMREAD_MULTI;
+ bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
+ }
+ } else {
+ if (bcm->current_core->rev == 0 || bcm->current_core->rev == 1) {
+ value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_TLP_WORKAROUND);
+ value |= 0x8;
+ bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_TLP_WORKAROUND,
+ value);
+ }
+ if (bcm->current_core->rev == 0) {
+ bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
+ BCM43xx_SERDES_RXTIMER, 0x8128);
+ bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
+ BCM43xx_SERDES_CDR, 0x0100);
+ bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
+ BCM43xx_SERDES_CDR_BW, 0x1466);
+ } else if (bcm->current_core->rev == 1) {
+ value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_DLLP_LINKCTL);
+ value |= 0x40;
+ bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_DLLP_LINKCTL,
+ value);
+ }
}
-
out_switch_back:
err = bcm43xx_switch_core(bcm, old_core);
out:
@@ -3676,7 +3745,7 @@ static int bcm43xx_read_phyinfo(struct bcm43xx_private *bcm)
bcm->ieee->freq_band = IEEE80211_24GHZ_BAND;
break;
case BCM43xx_PHYTYPE_G:
- if (phy_rev > 7)
+ if (phy_rev > 8)
phy_rev_ok = 0;
bcm->ieee->modulation = IEEE80211_OFDM_MODULATION |
IEEE80211_CCK_MODULATION;