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Content preview: On 1/2/19 7:33 PM, Heinrich Schuchardt wrote: > On 1/2/19 5:37 PM, Marek Vasut wrote: >> On 1/2/19 5:03 PM, Heinrich Schuchardt wrote:
On 1/2/19 3:21 PM, Marek Vasut wrote: >>>> On 1/2/19 12:29 PM, Heinrich
Schuchardt wrote: >>>>> If multiple USB buses exist, the output of the commands 'usb tree' and 'usb >>>>> info' is confusing because it is not clear where the output for a new bus >>>>> starts. >>>>> >>>>> Print an additional line for each bus indicating the bus number, e.g. >>>>> >>>>> => usb tree >>>>> USB device tree: >>>>> USB bus 0 >>>>> 1 Hub (5 Gb/s, 0mA) >>>>> U-Boot XHCI Host Controller >>>>> >>>>> USB bus 1 >>>>> 1 Hub (5 Gb/s, 0mA) >>>>> U-Boot XHCI Host Controller >>>>> >>>>> Signed-off-by: Heinrich Schuchardt >>>>> --- >>>>> cmd/usb.c | 1 + >>>>> 1 file changed, 1 insertion(+) >>>>> >>>>> diff --git a/cmd/usb.c b/cmd/usb.c >>>>> index 0ccb1b5148..6da945c376 100644
--- a/cmd/usb.c >>>>> +++ b/cmd/usb.c >>>>> @@ -470,6 +470,7 @@ static
void usb_for_each_root_dev(usb_dev_func_t func) >>>>> if (!device_active(bus))
continue; >>>>> >>>>> + printf("USB bus %d\n", bus->seq); >>>> >>>>
Isn't this only valid if you use SEQ_ALIAS ? >>> >>> Kconfig symbol SEQ_ALIAS does not exist. I assume you mean DM_SEQ_ALIAS. >>> >>> In device_probe() seq is set unconditionally >>> (drivers/core/device.c:306). >>> >>> CONFIG_DM_SEQ_ALIAS=y allows to influence the value of seq via the >>> device tree. >> >> I know what it does. Without this option being set, the bus->seq number >> will be either some obscure gigantic number or undefined, right ? >> > > I disabled CONFIG_DM_SEQ_ALIAS and this is the output on my MACCHIATObin > (with the second USB bus enabled in the device tree). > > => usb start > starting USB...
USB0: Register 2000120 NbrPorts 2 > Starting the controller > USB XHCI
1.00 > USB1: Register 2000120 NbrPorts 2 > Starting the controller > USB XHCI 1.00 > scanning bus 0 for devices... 1 USB Device(s) found > scanning bus 1 for devices... 1 USB Device(s) found > scanning usb [...]
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