diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-4.4/087-0003-PCI-iproc-Add-iProc-PCIe-MSI-device-tree-binding.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-4.4/087-0003-PCI-iproc-Add-iProc-PCIe-MSI-device-tree-binding.patch | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/target/linux/bcm53xx/patches-4.4/087-0003-PCI-iproc-Add-iProc-PCIe-MSI-device-tree-binding.patch b/target/linux/bcm53xx/patches-4.4/087-0003-PCI-iproc-Add-iProc-PCIe-MSI-device-tree-binding.patch deleted file mode 100644 index b02b121cb0..0000000000 --- a/target/linux/bcm53xx/patches-4.4/087-0003-PCI-iproc-Add-iProc-PCIe-MSI-device-tree-binding.patch +++ /dev/null @@ -1,68 +0,0 @@ -From c7bd48195377435ecaf38869b936be8e7abe3489 Mon Sep 17 00:00:00 2001 -From: Ray Jui <rjui@broadcom.com> -Date: Fri, 4 Dec 2015 09:35:00 -0800 -Subject: [PATCH 3/5] PCI: iproc: Add iProc PCIe MSI device tree binding - -Update the iProc PCIe device tree bindings with added binding information -for MSI. - -Signed-off-by: Ray Jui <rjui@broadcom.com> -Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> -Reviewed-by: Anup Patel <anup.patel@broadcom.com> -Reviewed-by: Vikram Prakash <vikramp@broadcom.com> -Reviewed-by: Scott Branden <sbranden@broadcom.com> ---- - .../devicetree/bindings/pci/brcm,iproc-pcie.txt | 35 ++++++++++++++++++++++ - 1 file changed, 35 insertions(+) - ---- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt -+++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt -@@ -35,6 +35,28 @@ Optional: - - brcm,pcie-ob-oarr-size: Some iProc SoCs need the OARR size bit to be set to - increase the outbound window size - -+MSI support (optional): -+ -+For older platforms without MSI integrated in the GIC, iProc PCIe core provides -+an event queue based MSI support. The iProc MSI uses host memories to store -+MSI posted writes in the event queues -+ -+- msi-parent: Link to the device node of the MSI controller. On newer iProc -+platforms, the MSI controller may be gicv2m or gicv3-its. On older iProc -+platforms without MSI support in its interrupt controller, one may use the -+event queue based MSI support integrated within the iProc PCIe core. -+ -+When the iProc event queue based MSI is used, one needs to define the -+following properties in the MSI device node: -+- compatible: Must be "brcm,iproc-msi" -+- msi-controller: claims itself as an MSI controller -+- interrupt-parent: Link to its parent interrupt device -+- interrupts: List of interrupt IDs from its parent interrupt device -+ -+Optional properties: -+- brcm,pcie-msi-inten: Needs to be present for some older iProc platforms that -+require the interrupt enable registers to be set explicitly to enable MSI -+ - Example: - pcie0: pcie@18012000 { - compatible = "brcm,iproc-pcie"; -@@ -61,6 +83,19 @@ Example: - brcm,pcie-ob-oarr-size; - brcm,pcie-ob-axi-offset = <0x00000000>; - brcm,pcie-ob-window-size = <256>; -+ -+ msi-parent = <&msi0>; -+ -+ /* iProc event queue based MSI */ -+ msi0: msi@18012000 { -+ compatible = "brcm,iproc-msi"; -+ msi-controller; -+ interrupt-parent = <&gic>; -+ interrupts = <GIC_SPI 96 IRQ_TYPE_NONE>, -+ <GIC_SPI 97 IRQ_TYPE_NONE>, -+ <GIC_SPI 98 IRQ_TYPE_NONE>, -+ <GIC_SPI 99 IRQ_TYPE_NONE>, -+ }; - }; - - pcie1: pcie@18013000 { |