From bbca4d39175a96b882def1628e8b532998750dfa Mon Sep 17 00:00:00 2001 From: Gerhard Sittig Date: Tue, 10 Dec 2013 10:51:08 +0100 Subject: [PATCH 1/2] powerpc/512x: dts: remove misplaced IRQ spec from 'soc' node (5125) the 'soc' node in the MPC5125 "tower" board .dts has an '#interrupt-cells' property although this node is not an interrupt controller remove this erroneously placed property because starting with v3.13-rc1 lookup and resolution of 'interrupts' specs for peripherals gets misled (tries to use the 'soc' as the interrupt parent which fails), emits 'no irq domain found' WARN() messages and breaks the boot process [ best viewed with 'git diff -U5' to have DT node names in the context ] Cc: Anatolij Gustschin Cc: linuxppc-dev@lists.ozlabs.org Cc: devicetree@vger.kernel.org Signed-off-by: Gerhard Sittig Signed-off-by: Anatolij Gustschin --- arch/powerpc/boot/dts/mpc5125twr.dts | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts index 4177b62240c2..0a0fe92216ae 100644 --- a/arch/powerpc/boot/dts/mpc5125twr.dts +++ b/arch/powerpc/boot/dts/mpc5125twr.dts @@ -58,7 +58,6 @@ compatible = "fsl,mpc5121-immr"; #address-cells = <1>; #size-cells = <1>; - #interrupt-cells = <2>; ranges = <0x0 0x80000000 0x400000>; reg = <0x80000000 0x400000>; bus-frequency = <66000000>; // 66 MHz ips bus From 11daf32be9a6041a2406c2cbf76b75a9c4a6eaaa Mon Sep 17 00:00:00 2001 From: Matteo Facchinetti Date: Fri, 20 Dec 2013 10:16:22 +0100 Subject: [PATCH 2/2] powerpc/512x: dts: disable MPC5125 usb module At the moment the USB controller's pin muxing is not setup correctly and causes a kernel panic upon system startup, so disable the USB1 device tree node in the MPC5125 tower board dts file. The USB controller is connected to an USB3320 ULPI transceiver and the device tree should receive an update to reflect correct dependencies and required initialization data before the USB1 node can get re-enabled. Signed-off-by: Matteo Facchinetti Signed-off-by: Anatolij Gustschin --- arch/powerpc/boot/dts/mpc5125twr.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts index 0a0fe92216ae..a618dfc13e4c 100644 --- a/arch/powerpc/boot/dts/mpc5125twr.dts +++ b/arch/powerpc/boot/dts/mpc5125twr.dts @@ -188,6 +188,10 @@ reg = <0xA000 0x1000>; }; + // disable USB1 port + // TODO: + // correct pinmux config and fix USB3320 ulpi dependency + // before re-enabling it usb@3000 { compatible = "fsl,mpc5121-usb2-dr"; reg = <0x3000 0x400>; @@ -196,6 +200,7 @@ interrupts = <43 0x8>; dr_mode = "host"; phy_type = "ulpi"; + status = "disabled"; }; // 5125 PSCs are not 52xx or 5121 PSC compatible