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-rw-r--r--target/linux/imx6/patches-4.9/200-disable-msi.patch22
1 files changed, 22 insertions, 0 deletions
diff --git a/target/linux/imx6/patches-4.9/200-disable-msi.patch b/target/linux/imx6/patches-4.9/200-disable-msi.patch
new file mode 100644
index 0000000000..290147c944
--- /dev/null
+++ b/target/linux/imx6/patches-4.9/200-disable-msi.patch
@@ -0,0 +1,22 @@
+The IMX6 PCIe host controller does not fire legacy interrupts when MSI is
+enabled. A patch is being worked on upstream to only enable MSI at runtime
+when needed, but until that is ready we will allow MSI to be disabled.
+
+--- a/drivers/pci/host/Kconfig
++++ b/drivers/pci/host/Kconfig
+@@ -51,7 +51,6 @@ config PCIE_DW_PLAT
+
+ config PCIE_DW
+ bool
+- depends on PCI_MSI_IRQ_DOMAIN
+
+ config PCI_EXYNOS
+ bool "Samsung Exynos PCIe controller"
+@@ -63,7 +62,6 @@ config PCI_EXYNOS
+ config PCI_IMX6
+ bool "Freescale i.MX6 PCIe controller"
+ depends on SOC_IMX6Q
+- depends on PCI_MSI_IRQ_DOMAIN
+ select PCIEPORTBUS
+ select PCIE_DW
+