From 2be83fb501d30dfc66e6afcffe7a4a1570807df4 Mon Sep 17 00:00:00 2001 From: Fabio Estevam <fabio.estevam@freescale.com> Date: Wed, 21 Aug 2013 10:27:03 -0300 Subject: [PATCH 06/59] ARM: dts: imx28-evk: Allow usb peripheral mode to work Testing g_ether results in the following: [ 1.648022] using random self ethernet address [ 1.652778] using random host ethernet address [ 1.660504] usb0: HOST MAC c6:28:6a:81:dc:ff [ 1.666360] usb0: MAC 7e:81:54:16:c0:c6 [ 1.670504] using random self ethernet address [ 1.675842] using random host ethernet address [ 1.682655] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008 [ 1.689332] g_ether gadget: g_ether ready [ 3.328974] irq 237: nobody cared (try booting with the "irqpoll" option) [ 3.335831] CPU: 0 PID: 1 Comm: swapper Not tainted 3.11.0-rc6-next-20130819 #1035 [ 3.343500] [<c0014258>] (unwind_backtrace+0x0/0xf0) from [<c0011b20>] (show_stack+0x10/0x14) [ 3.352098] [<c0011b20>] (show_stack+0x10/0x14) from [<c006af4c>] (__report_bad_irq+0x20/0xc0) [ 3.360763] [<c006af4c>] (__report_bad_irq+0x20/0xc0) from [<c006b3f4>] (note_interrupt+0x1d4/0x234) [ 3.369943] [<c006b3f4>] (note_interrupt+0x1d4/0x234) from [<c0069754>] (handle_irq_event_percpu+0xc4/0x268) [ 3.379815] [<c0069754>] (handle_irq_event_percpu+0xc4/0x268) from [<c0069934>] (handle_irq_event+0x3c/0x5c) [ 3.389686] [<c0069934>] (handle_irq_event+0x3c/0x5c) from [<c006bb78>] (handle_level_irq+0x8c/0xe8) [ 3.398865] [<c006bb78>] (handle_level_irq+0x8c/0xe8) from [<c0068ff0>] (generic_handle_irq+0x20/0x30) [ 3.408213] [<c0068ff0>] (generic_handle_irq+0x20/0x30) from [<c000fc9c>] (handle_IRQ+0x30/0x84) [ 3.417040] [<c000fc9c>] (handle_IRQ+0x30/0x84) from [<c0012564>] (__irq_svc+0x44/0x54) [ 3.425094] [<c0012564>] (__irq_svc+0x44/0x54) from [<c0020244>] (__do_softirq+0x90/0x268) [ 3.433400] [<c0020244>] (__do_softirq+0x90/0x268) from [<c00207d4>] (irq_exit+0x9c/0xd8) [ 3.441619] [<c00207d4>] (irq_exit+0x9c/0xd8) from [<c000fca0>] (handle_IRQ+0x34/0x84) [ 3.449577] [<c000fca0>] (handle_IRQ+0x34/0x84) from [<c0012564>] (__irq_svc+0x44/0x54) [ 3.457629] [<c0012564>] (__irq_svc+0x44/0x54) from [<c04602b0>] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 3.467164] [<c04602b0>] (_raw_spin_unlock_irqrestore+0x34/0x44) from [<c0348298>] (input_register_handler+0x98/0xb4) [ 3.477835] [<c0348298>] (input_register_handler+0x98/0xb4) from [<c064bc10>] (mousedev_init+0x30/0x60) [ 3.487275] [<c064bc10>] (mousedev_init+0x30/0x60) from [<c00088ac>] (do_one_initcall+0xe8/0x154) [ 3.496198] [<c00088ac>] (do_one_initcall+0xe8/0x154) from [<c062aabc>] (kernel_init_freeable+0xf0/0x1b4) [ 3.505810] [<c062aabc>] (kernel_init_freeable+0xf0/0x1b4) from [<c0456550>] (kernel_init+0x8/0xe4) [ 3.514899] [<c0456550>] (kernel_init+0x8/0xe4) from [<c000ee60>] (ret_from_fork+0x14/0x34) [ 3.523263] handlers: [ 3.525578] [<c0339d14>] ci_irq [ 3.528757] Disabling IRQ #237 Provide the USB0_ID pin in the usb0 node, so that g_ether can operate correctly. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- arch/arm/boot/dts/imx28-evk.dts | 2 ++ arch/arm/boot/dts/imx28.dtsi | 10 ++++++++++ 2 files changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts index 15715d9..8cb6b6a 100644 --- a/arch/arm/boot/dts/imx28-evk.dts +++ b/arch/arm/boot/dts/imx28-evk.dts @@ -242,6 +242,8 @@ ahb@80080000 { usb0: usb@80080000 { + pinctrl-names = "default"; + pinctrl-0 = <&usb0_id_pins_a>; vbus-supply = <®_usb0_vbus>; status = "okay"; }; diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi index 7363fde..c596b6d 100644 --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -740,6 +740,16 @@ fsl,voltage = <1>; fsl,pull-up = <0>; }; + + usb0_id_pins_a: usb0id@0 { + reg = <0>; + fsl,pinmux-ids = < + 0x3071 /* MX28_PAD_AUART1_RTS__USB0_ID */ + >; + fsl,drive-strength = <2>; + fsl,voltage = <1>; + fsl,pull-up = <1>; + }; }; digctl: digctl@8001c000 { -- 1.8.4.rc3