[U-Boot] [PATCH v3] fastboot: add support for reboot-bootloader command

[Alexey Firago <alexey_firago@mentor.com>]

Hi Lukasz,

Hmm, I don't see it applied to u-boot-dfu now. Do I need to add something ?

Thanks,
Alexey

On 26.02.2015 13:22, Lukasz Majewski wrote:
> Hi Alexey,
>
>> The "fastboot reboot-bootloader" command is defined to
>> re-enter into fastboot mode after rebooting into
>> bootloader. This command is usually used after updating
>> bootloader via fastboot.
>>
>> This commit implements only a generic side of the
>> command - setting of the reset flag and then resetting.
>> Setting of the reset flag is implemented using __weak
>> fb_set_reboot_flag() function. The actual setting and
>> checking of the reset flag should be implemented by
>> a boot script and/or board/SoC specific code.
>>
>> Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
>> ---
>>
>> Changes in v3:
>> - return -ENOSYS from default fb_set_reboot_flag()
>>
>> Changes in v2:
>> - return error in default fb_set_reboot_flag()
>>
>>   drivers/usb/gadget/f_fastboot.c | 13 +++++++++++++
>>   1 file changed, 13 insertions(+)
>>
>> diff --git a/drivers/usb/gadget/f_fastboot.c
>> b/drivers/usb/gadget/f_fastboot.c index 310175a..a000c25 100644
>> --- a/drivers/usb/gadget/f_fastboot.c
>> +++ b/drivers/usb/gadget/f_fastboot.c
>> @@ -122,6 +122,7 @@ static struct usb_gadget_strings
>> *fastboot_strings[] = { };
>>   
>>   static void rx_handler_command(struct usb_ep *ep, struct usb_request
>> *req); +static int strcmp_l1(const char *s1, const char *s2);
>>   
>>   static void fastboot_complete(struct usb_ep *ep, struct usb_request
>> *req) {
>> @@ -317,8 +318,20 @@ static void compl_do_reset(struct usb_ep *ep,
>> struct usb_request *req) do_reset(NULL, 0, 0, NULL);
>>   }
>>   
>> +int __weak fb_set_reboot_flag(void)
>> +{
>> +	return -ENOSYS;
>> +}
>> +
>>   static void cb_reboot(struct usb_ep *ep, struct usb_request *req)
>>   {
>> +	char *cmd = req->buf;
>> +	if (!strcmp_l1("reboot-bootloader", cmd)) {
>> +		if (fb_set_reboot_flag()) {
>> +			fastboot_tx_write_str("FAILCannot set reboot
>> flag");
>> +			return;
>> +		}
>> +	}
>>   	fastboot_func->in_req->complete = compl_do_reset;
>>   	fastboot_tx_write_str("OKAY");
>>   }
> Applied to u-boot-dfu.
>
> Thanks for patch!
>