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Date: Thu, 11 Jan 2007 22:52:04 -0600
From: Larry Finger <Larry.Finger@...inger.net>
To: John Linville <linville@...driver.com>
Cc: Michael Buesch <mb@...sch.de>, netdev@...r.kernel.org,
Bcm43xx-dev@...ts.berlios.de
Subject: [PATCH] bcm43xx: Fix failure to deliver PCI-E interrupts
The PCI-E modifications to bcm43xx do not set up the interrupt vector
correctly.
Signed-off-by: Larry Finger <Larry.Finger@...inger.net>
---
John,
This fix should be applied to wireless-2.6 _AND_ pushed upstream to
2.6.20-rcX. Without this patch, none of the PCI-E interfaces will work.
Larry
Index: linux-2.6/drivers/net/wireless/bcm43xx/bcm43xx_main.c
===================================================================
--- linux-2.6.orig/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ linux-2.6/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -2704,7 +2704,7 @@ static int bcm43xx_probe_cores(struct bc
sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
/* extract core_id, core_rev, core_vendor */
- core_id = (sb_id_hi & 0xFFF0) >> 4;
+ core_id = (sb_id_hi & 0x8FF0) >> 4;
core_rev = (sb_id_hi & 0xF);
core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
@@ -2717,7 +2717,7 @@ static int bcm43xx_probe_cores(struct bc
case BCM43xx_COREID_PCIE:
core = &bcm->core_pci;
if (core->available) {
- printk(KERN_WARNING PFX "Multiple PCI cores found.\n");
+ printk(KERN_WARNING PFX "Multiple PCI/PCI-E cores found.\n");
continue;
}
break;
@@ -2872,11 +2872,14 @@ static int bcm43xx_wireless_core_init(st
u32 sbimconfiglow;
u8 limit;
- if (bcm->core_pci.rev <= 5 && bcm->core_pci.id != BCM43xx_COREID_PCIE) {
+ if (bcm->core_pci.rev <= 5 && bcm->core_pci.id == BCM43xx_COREID_PCI) {
sbimconfiglow = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
- sbimconfiglow |= 0x32;
+ if (bcm->bustype == BCM43xx_BUSTYPE_PCI)
+ sbimconfiglow |= 0x32;
+ else
+ sbimconfiglow |= 0x53;
bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, sbimconfiglow);
}
@@ -3070,6 +3073,7 @@ static int bcm43xx_setup_backplane_pci_c
u32 backplane_flag_nr;
u32 value;
struct bcm43xx_coreinfo *old_core;
+ struct bcm43xx_coreinfo *pci_core = &bcm->core_pci ;
int err = 0;
value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTPSFLAG);
@@ -3080,26 +3084,22 @@ static int bcm43xx_setup_backplane_pci_c
if (err)
goto out;
- 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);
- } else {
+ if ((pci_core->rev >= 6) || (pci_core->id == BCM43xx_COREID_PCIE)) {
err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_ICR, &value);
- if (err) {
- printk(KERN_ERR PFX "Error: ICR setup failure!\n");
+ if (err)
goto out_switch_back;
- }
value |= core_mask << 8;
err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_ICR, value);
- if (err) {
- printk(KERN_ERR PFX "Error: ICR setup failure!\n");
+ if (err)
goto out_switch_back;
- }
+ } else {
+ err = -EINVAL;
+ value = bcm43xx_read32(bcm, BCM43xx_CIR_SBINTVEC);
+ value |= 1 << backplane_flag_nr;
+ bcm43xx_write32(bcm, BCM43xx_CIR_SBINTVEC, value);
}
- if (bcm->current_core->id == BCM43xx_COREID_PCI) {
+ if (pci_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);
@@ -3118,21 +3118,21 @@ static int bcm43xx_setup_backplane_pci_c
value |= BCM43xx_SBTOPCI2_MEMREAD_MULTI;
bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
}
- } else {
- if (bcm->current_core->rev == 0 || bcm->current_core->rev == 1) {
+ } else if (pci_core->id == BCM43xx_COREID_PCIE) {
+ if (pci_core->rev == 0 || pci_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) {
+ if (pci_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) {
+ } else if (pci_core->rev == 1) {
value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_DLLP_LINKCTL);
value |= 0x40;
bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_DLLP_LINKCTL,
@@ -3141,6 +3141,7 @@ static int bcm43xx_setup_backplane_pci_c
}
out_switch_back:
err = bcm43xx_switch_core(bcm, old_core);
+ printk(KERN_ERR PFX "Error: ICR setup failure!\n");
out:
return err;
}
---
-
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