aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch
diff options
context:
space:
mode:
authorFelix Fietkau <nbd@openwrt.org>2015-05-10 11:47:09 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-05-10 11:47:09 +0000
commitcfb56b481131f601d5a587a8d89a752b1fd54d0b (patch)
treebbb7f3d22130acdd69d9a4e79442a3ef614d5455 /target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch
parent3c4bc0cd77fabc8b77fc7a136ce35786cc5c2a61 (diff)
downloadupstream-cfb56b481131f601d5a587a8d89a752b1fd54d0b.tar.gz
upstream-cfb56b481131f601d5a587a8d89a752b1fd54d0b.tar.bz2
upstream-cfb56b481131f601d5a587a8d89a752b1fd54d0b.zip
ipq806x: add pcie support to ipq806x based platforms
This change adds PCIe support to IPQ806x based platforms. The driver is actually cherry-picked from the following LKML thread: *https://lwn.net/Articles/643086/ (patches 110-111) We also add here an additional fix to support multiple PCI controllers on the same platform (patch 112), and to patch the ap148 & dbs149 DTS files (patch 113). Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 45663
Diffstat (limited to 'target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch')
-rw-r--r--target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch29
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch b/target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch
new file mode 100644
index 0000000000..4f0e45f656
--- /dev/null
+++ b/target/linux/ipq806x/patches-3.18/113-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch
@@ -0,0 +1,29 @@
+From f004aa1dec6e2e206be025de15b115d60f2b21e3 Mon Sep 17 00:00:00 2001
+From: Mathieu Olivari <mathieu@codeaurora.org>
+Date: Tue, 21 Apr 2015 19:09:07 -0700
+Subject: [PATCH 9/9] ARM: qcom: automatically select PCI_DOMAINS if PCI is
+ enabled
+
+If multiple PCIe devices are present in the system, the kernel will
+panic at boot time when trying to scan the PCI buses. This happens on
+IPQ806x based platforms, which has 3 PCIe ports.
+
+Enabling this option allows the kernel to assign the pci-domains
+according to the device-tree content. This allows multiple PCIe
+controllers to coexist in the system.
+
+Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
+---
+ arch/arm/mach-qcom/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/mach-qcom/Kconfig
++++ b/arch/arm/mach-qcom/Kconfig
+@@ -6,6 +6,7 @@ menuconfig ARCH_QCOM
+ select CLKSRC_OF
+ select PINCTRL
+ select QCOM_SCM if SMP
++ select PCI_DOMAINS if PCI
+ help
+ Support for Qualcomm's devicetree based systems.
+