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authorHauke Mehrtens <hauke@hauke-m.de>2012-10-04 15:45:54 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2012-10-04 15:45:54 +0000
commit07234dc8bd2a9bd7948220b146f13cf95580b1a2 (patch)
tree1c5b55568610eb994dfd7a78261b239b058e98a6
parent281989083994b97864e0f1fc221eae6c1ea1df2a (diff)
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bcma: do not initialize deactivated PCIe cores
Before it was tried to initialize the deactivated PCIe core in client mode, but this causes the SoC to hang. Just do not initialize it at all and ignore the core it is not working and nothing is connected to it when the specific bit is set in the boardflags. SVN-Revision: 33620
-rw-r--r--target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch26
-rw-r--r--target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch12
2 files changed, 32 insertions, 6 deletions
diff --git a/target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch b/target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch
new file mode 100644
index 0000000000..302ac8d954
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch
@@ -0,0 +1,26 @@
+--- a/drivers/bcma/driver_pci_host.c
++++ b/drivers/bcma/driver_pci_host.c
+@@ -35,11 +35,6 @@ bool __devinit bcma_core_pci_is_in_hostm
+ chipid_top != 0x5300)
+ return false;
+
+- if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
+- bcma_info(bus, "This PCI core is disabled and not working\n");
+- return false;
+- }
+-
+ bcma_core_enable(pc->core, 0);
+
+ return !mips_busprobe32(tmp, pc->core->io_addr);
+@@ -396,6 +391,11 @@ void __devinit bcma_core_pci_hostmode_in
+
+ bcma_info(bus, "PCIEcore in host mode found\n");
+
++ if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
++ bcma_info(bus, "This PCIE core is disabled and not working\n");
++ return;
++ }
++
+ pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL);
+ if (!pc_host) {
+ bcma_err(bus, "can not allocate memory");
diff --git a/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch b/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch
index 874c249b0f..91b8a4191c 100644
--- a/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch
+++ b/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch
@@ -1,6 +1,6 @@
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
-@@ -99,19 +99,19 @@ static int bcma_extpci_read_config(struc
+@@ -94,19 +94,19 @@ static int bcma_extpci_read_config(struc
if (dev == 0) {
/* we support only two functions on device 0 */
if (func > 1)
@@ -23,7 +23,7 @@
val = pcicore_read32(pc, addr);
}
} else {
-@@ -127,8 +127,6 @@ static int bcma_extpci_read_config(struc
+@@ -122,8 +122,6 @@ static int bcma_extpci_read_config(struc
val = 0xffffffff;
goto unmap;
}
@@ -32,7 +32,7 @@
}
val >>= (8 * (off & 3));
-@@ -156,7 +154,7 @@ static int bcma_extpci_write_config(stru
+@@ -151,7 +149,7 @@ static int bcma_extpci_write_config(stru
const void *buf, int len)
{
int err = -EINVAL;
@@ -41,7 +41,7 @@
void __iomem *mmio = 0;
u16 chipid = pc->core->bus->chipinfo.id;
-@@ -164,16 +162,22 @@ static int bcma_extpci_write_config(stru
+@@ -159,16 +157,22 @@ static int bcma_extpci_write_config(stru
if (unlikely(len != 1 && len != 2 && len != 4))
goto out;
if (dev == 0) {
@@ -70,7 +70,7 @@
}
} else {
addr = bcma_get_cfgspace_addr(pc, dev, func, off);
-@@ -192,12 +196,10 @@ static int bcma_extpci_write_config(stru
+@@ -187,12 +191,10 @@ static int bcma_extpci_write_config(stru
switch (len) {
case 1:
@@ -83,7 +83,7 @@
val &= ~(0xFFFF << (8 * (off & 3)));
val |= *((const u16 *)buf) << (8 * (off & 3));
break;
-@@ -205,13 +207,14 @@ static int bcma_extpci_write_config(stru
+@@ -200,13 +202,14 @@ static int bcma_extpci_write_config(stru
val = *((const u32 *)buf);
break;
}