全志Ａ２０开发板 usb otg功能问题

雨焰 2014-03-06 10:10:12

我使用的是全志Ａ２０芯片的开发板
sysconfig.fex文件中修改的
[usbc0]
usb_used = 1
usb_port_type = 0
usb_detect_type = 0
usb_id_gpio =
usb_det_vbus_gpio =
usb_drv_vbus_gpio = port:PB9<1><0><default><0>
usb_host_init_state = 0

我在A10上这么配置就没问题
A20的板子和A10的一样，只不过是芯片不一样而已

现在我用A20遇到的情况是，一插usb数据线，开发板就死机了！更别说想adb shell连接了！

有没有哪位朋友遇到过这种问题解决了的！希望能帮帮忙！

...全文

1056 5 打赏收藏转发到动态举报

写回复

用AI写文章

5 条回复

切换为时间正序

请发表友善的回复…

发表回复

贴吧尚书 2015-02-05

打赏
举报

在sw_udc.c中的sw_udc_probe_device_only中的最后return 0;之前添加如下代码试试 #ifdef CONFIG_UDC_ACTIVE udc->udc_actived = 0; INIT_WORK(&udc->udc_active_work, udc_powernow_switch); init_timer(&udc->udc_active_timer); udc->udc_active_timer.fuction = udc_timer_func; #endif

LY_深圳 2014-04-09

打赏
举报

楼上的找到解决方法了没有？问一下全志工程师看看。

LY_深圳 2014-04-09

打赏
举报

我这边也遇到了这样的问题。求解。。。

雨焰 2014-03-12

打赏
举报

2014年3月12日14:48:08 还没有找到解决办法

雨焰 2014-03-06

打赏
举报

在插上U盘，点击一下鼠标，串口打印的信息如下： [ 92.103634] ------------[ cut here ]------------ [ 92.108792] kernel BUG at kernel/workqueue.c:1035! [ 92.114128] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM [ 92.120623] Modules linked in: rtl8150 uvcvideo videobuf_dma_contig videobuf_core mali(O) ump(O) gpio_sunxi sun7i_ir nand(O) [ 92.133173] CPU: 0 Tainted: G O (3.4.39 #5) [ 92.139195] PC is at __queue_work+0x21c/0x2f0 [ 92.144047] LR is at __queue_work+0x208/0x2f0 [ 92.148899] pc : [<c0063d30>] lr : [<c0063d1c>] psr: 00000193 [ 92.148905] sp : eaac7e70 ip : 00000000 fp : 00000010 [ 92.161691] r10: d1d0bd00 r9 : 00000000 r8 : c075e9f8 [ 92.167510] r7 : ef02cdc0 r6 : c075ef48 r5 : 20000193 r4 : d1d08440 [ 92.174781] r3 : c075ef4c r2 : 00000000 r1 : ef02cdc0 r0 : d1d0bd00 [ 92.182053] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 92.190098] Control: 10c5387d Table: 6bc0806a DAC: 00000015 。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。 [ 93.304434] Exception stack(0xeaac7fb0 to 0xeaac7ff8) [ 93.310061] 7fa0: 4062a278 000002aa bead5854 444d8e6c [ 93.319176] 7fc0: bead5854 00000000 4062a278 00000003 bead58f4 444cd000 443cac68 00000000 [ 93.328289] 7fe0: 4034bf74 bead5708 402f4f37 402faf2e 60000030 ffffffff [ 93.335661] Code: e2863004 e1a0a000 e1520003 0a000000 (e7f001f2) [ 93.342452] ---[ end trace 26b348aad6cb27d8 ]--- [ 93.347597] Kernel panic - not syncing: Fatal exception in interrupt [ 93.354679] CPU1: stopping [ 93.357709] [<c00142a8>] (unwind_backtrace+0x0/0xe0) from [<c0012818>] (handle_IPI+0xf8/0x1d4) [ 93.367318] [<c0012818>] (handle_IPI+0xf8/0x1d4) from [<c00084e0>] (gic_handle_irq+0x50/0x58) [ 93.376828] [<c00084e0>] (gic_handle_irq+0x50/0x58) from [<c000d500>] (__irq_svc+0x40/0x70) [ 93.386139] Exception stack(0xef05ff90 to 0xef05ffd8) [ 93.391770] ff80: 00000001 01000000 00000000 00000000 [ 93.400892] ffa0: ef05e000 c0781c88 c04f89f8 c073e9d0 4000406a 410fc074 00000000 00000000 [ 93.410013] ffc0: 00000000 ef05ffd8 c000ea90 c000ea94 60000013 ffffffff [ 93.417394] [<c000d500>] (__irq_svc+0x40/0x70) from [<c000ea94>] (default_idle+0x24/0x2c) [ 93.426519] [<c000ea94>] (default_idle+0x24/0x2c) from [<c000ee08>] (cpu_idle+0x90/0xe4) [ 93.435550] [<c000ee08>] (cpu_idle+0x90/0xe4) from [<404e9d54>] (0x404e9d54) [ 93.443410] [hotplug]: cpu(0) try to kill cpu(1) [ 94.440842] [hotplug]: try to kill cpu:1 failed!