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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
commit6c02b7b1610f873888af20f291c07730889ff0f9 (patch)
tree1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/powerpc/platforms/maple
parent7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff)
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
downloadop-kernel-dev-6c02b7b1610f873888af20f291c07730889ff0f9.zip
op-kernel-dev-6c02b7b1610f873888af20f291c07730889ff0f9.tar.gz
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits) Linux 3.3-rc1 x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... KEYS: Permit key_serial() to be called with a const key pointer keys: fix user_defined key sparse messages ima: fix cred sparse warning uml: fix compile for x86-64 MPILIB: Add a missing ENOMEM check tpm: fix (ACPI S3) suspend regression nvme: fix merge error due to change of 'make_request_fn' fn type xen: using EXPORT_SYMBOL requires including export.h gpio: tps65910: Use correct offset for gpio initialization acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 tg3: Fix single-vector MSI-X code openvswitch: Fix multipart datapath dumps. ipv6: fix per device IP snmp counters ...
Diffstat (limited to 'arch/powerpc/platforms/maple')
-rw-r--r--arch/powerpc/platforms/maple/pci.c55
-rw-r--r--arch/powerpc/platforms/maple/setup.c2
2 files changed, 56 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index dd2e48b..401e3f3 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -207,6 +207,54 @@ static volatile void __iomem *u3_ht_cfg_access(struct pci_controller* hose,
return hose->cfg_data + u3_ht_cfa1(bus, devfn, offset);
}
+static int u3_ht_root_read_config(struct pci_controller *hose, u8 offset,
+ int len, u32 *val)
+{
+ volatile void __iomem *addr;
+
+ addr = hose->cfg_addr;
+ addr += ((offset & ~3) << 2) + (4 - len - (offset & 3));
+
+ switch (len) {
+ case 1:
+ *val = in_8(addr);
+ break;
+ case 2:
+ *val = in_be16(addr);
+ break;
+ default:
+ *val = in_be32(addr);
+ break;
+ }
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int u3_ht_root_write_config(struct pci_controller *hose, u8 offset,
+ int len, u32 val)
+{
+ volatile void __iomem *addr;
+
+ addr = hose->cfg_addr + ((offset & ~3) << 2) + (4 - len - (offset & 3));
+
+ if (offset >= PCI_BASE_ADDRESS_0 && offset < PCI_CAPABILITY_LIST)
+ return PCIBIOS_SUCCESSFUL;
+
+ switch (len) {
+ case 1:
+ out_8(addr, val);
+ break;
+ case 2:
+ out_be16(addr, val);
+ break;
+ default:
+ out_be32(addr, val);
+ break;
+ }
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
int offset, int len, u32 *val)
{
@@ -217,6 +265,9 @@ static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
if (hose == NULL)
return PCIBIOS_DEVICE_NOT_FOUND;
+ if (bus->number == hose->first_busno && devfn == PCI_DEVFN(0, 0))
+ return u3_ht_root_read_config(hose, offset, len, val);
+
if (offset > 0xff)
return PCIBIOS_BAD_REGISTER_NUMBER;
@@ -252,6 +303,9 @@ static int u3_ht_write_config(struct pci_bus *bus, unsigned int devfn,
if (hose == NULL)
return PCIBIOS_DEVICE_NOT_FOUND;
+ if (bus->number == hose->first_busno && devfn == PCI_DEVFN(0, 0))
+ return u3_ht_root_write_config(hose, offset, len, val);
+
if (offset > 0xff)
return PCIBIOS_BAD_REGISTER_NUMBER;
@@ -428,6 +482,7 @@ static void __init setup_u3_ht(struct pci_controller* hose)
* reg_property and using some accessor functions instead
*/
hose->cfg_data = ioremap(0xf2000000, 0x02000000);
+ hose->cfg_addr = ioremap(0xf8070000, 0x1000);
hose->first_busno = 0;
hose->last_busno = 0xef;
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 4c37204..0bcbfe7 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -221,7 +221,7 @@ static void __init maple_init_IRQ(void)
unsigned long openpic_addr = 0;
int naddr, n, i, opplen, has_isus = 0;
struct mpic *mpic;
- unsigned int flags = MPIC_PRIMARY;
+ unsigned int flags = 0;
/* Locate MPIC in the device-tree. Note that there is a bug
* in Maple device-tree where the type of the controller is
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