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-rw-r--r--target/linux/kirkwood/patches-3.10/0018-pci-mvebu-allow-the-enumeration-of-devices-beyond-ph.patch97
1 files changed, 0 insertions, 97 deletions
diff --git a/target/linux/kirkwood/patches-3.10/0018-pci-mvebu-allow-the-enumeration-of-devices-beyond-ph.patch b/target/linux/kirkwood/patches-3.10/0018-pci-mvebu-allow-the-enumeration-of-devices-beyond-ph.patch
deleted file mode 100644
index 9274ba6dde..0000000000
--- a/target/linux/kirkwood/patches-3.10/0018-pci-mvebu-allow-the-enumeration-of-devices-beyond-ph.patch
+++ /dev/null
@@ -1,97 +0,0 @@
-From ce12bfd48e93b98717a258b8181aed0e19933e1e Mon Sep 17 00:00:00 2001
-From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-Date: Thu, 23 May 2013 16:32:52 +0200
-Subject: [PATCH 18/29] pci: mvebu: allow the enumeration of devices beyond
- physical bridges
-
-Until now, the Marvell PCIe driver was only allowing the enumeration
-of the devices in the secondary bus of the emulated PCI-to-PCI
-bridge. This works fine when a PCIe device is directly connected into
-a PCIe slot of the Marvell board.
-
-However, when the device connected in the PCIe slot is a physical PCIe
-bridge, beyond which a real PCIe device is connected, it no longer
-worked, as the driver was preventing the Linux PCI core from seeing
-such devices.
-
-This commit fixes that by ensuring that configuration transactions on
-subordinate busses are properly forwarded on the right PCIe interface.
-
-Thanks to this patch, a PCIe card beyond a PCIe bridge, itself beyond
-the emulated PCI-to-PCI bridge is properly detected, with the
-following layout:
-
--[0000:00]-+-01.0-[01]----00.0
- +-09.0-[02-07]----00.0-[03-07]--+-01.0-[04]--
- | +-05.0-[05]--
- | +-07.0-[06]--
- | \-09.0-[07]----00.0
- \-0a.0-[08]----00.0
-
-Where the PCIe interface that sits beyond the emulated PCI-to-PCI
-bridge at 09.0 allows to access the secondary bus 02, on which there
-is a PCIe bridge that allows to access the 3 to 7 busses, that are
-subordinates to this bridge. And on one of this bus (bus 7), there is
-one real PCIe device connected.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-Acked-by: Bjorn Helgaas <bhelgaas@google.com>
-Signed-off-by: Jason Cooper <jason@lakedaemon.net>
----
- drivers/pci/host/pci-mvebu.c | 31 ++++++++++++++++++++++++++++---
- 1 file changed, 28 insertions(+), 3 deletions(-)
-
---- a/drivers/pci/host/pci-mvebu.c
-+++ b/drivers/pci/host/pci-mvebu.c
-@@ -554,7 +554,8 @@ mvebu_pcie_find_port(struct mvebu_pcie *
- if (bus->number == 0 && port->devfn == devfn)
- return port;
- if (bus->number != 0 &&
-- port->bridge.secondary_bus == bus->number)
-+ bus->number >= port->bridge.secondary_bus &&
-+ bus->number <= port->bridge.subordinate_bus)
- return port;
- }
-
-@@ -578,7 +579,18 @@ static int mvebu_pcie_wr_conf(struct pci
- if (bus->number == 0)
- return mvebu_sw_pci_bridge_write(port, where, size, val);
-
-- if (!port->haslink || PCI_SLOT(devfn) != 0)
-+ if (!port->haslink)
-+ return PCIBIOS_DEVICE_NOT_FOUND;
-+
-+ /*
-+ * On the secondary bus, we don't want to expose any other
-+ * device than the device physically connected in the PCIe
-+ * slot, visible in slot 0. In slot 1, there's a special
-+ * Marvell device that only makes sense when the Armada is
-+ * used as a PCIe endpoint.
-+ */
-+ if (bus->number == port->bridge.secondary_bus &&
-+ PCI_SLOT(devfn) != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- /* Access the real PCIe interface */
-@@ -609,7 +621,20 @@ static int mvebu_pcie_rd_conf(struct pci
- if (bus->number == 0)
- return mvebu_sw_pci_bridge_read(port, where, size, val);
-
-- if (!port->haslink || PCI_SLOT(devfn) != 0) {
-+ if (!port->haslink) {
-+ *val = 0xffffffff;
-+ return PCIBIOS_DEVICE_NOT_FOUND;
-+ }
-+
-+ /*
-+ * On the secondary bus, we don't want to expose any other
-+ * device than the device physically connected in the PCIe
-+ * slot, visible in slot 0. In slot 1, there's a special
-+ * Marvell device that only makes sense when the Armada is
-+ * used as a PCIe endpoint.
-+ */
-+ if (bus->number == port->bridge.secondary_bus &&
-+ PCI_SLOT(devfn) != 0) {
- *val = 0xffffffff;
- return PCIBIOS_DEVICE_NOT_FOUND;
- }