On Wed, Jan 04, 2023 at 17:46, Dario Binacchi dario.binacchi@amarulasolutions.com wrote:
The patch fixes the following error when updating a BSH SMM S2 board: 3:72>Start Cmd:FB[-t 8000]: ucmd nand write ${loadaddr} nanddtb ${filesize} 3:72>Okay (0.023s) 3:72>Start Cmd:FB: reboot 3:72>Fail Bulk(R):LIBUSB_ERROR_IO(0s)
The "fastboot reboot" command detaches the USB when it still needs to be used. So let's detach the USB just before the reset.
CC: Mattijs Korpershoek mkorpershoek@baylibre.com Fixes: 5f7e01e9d5d800 ("usb: gadget: fastboot: detach usb on reboot commands") Suggested-by: Michael Trimarchi michael@amarulasolutions.com Signed-off-by: Dario Binacchi dario.binacchi@amarulasolutions.com
Hi Dario,
Thank you for your patch and for reporting the problem.
Unfortunately, applying it seems to break the problem I tried to solve with 5f7e01e9d5d800 ("usb: gadget: fastboot: detach usb on reboot commands")
Does reverting 5f7e01e9d5d800 also solves your issue?
I'll spend some time on this.
Changes in v2:
- Add 'Suggested-by' tag.
drivers/usb/gadget/f_fastboot.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index 07b1681c8a9a..0b3fae564d0a 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -419,11 +419,6 @@ static int fastboot_tx_write_str(const char *buffer) return fastboot_tx_write(buffer, strlen(buffer)); }
-static void compl_do_reset(struct usb_ep *ep, struct usb_request *req) -{
- do_reset(NULL, 0, 0, NULL);
-}
static unsigned int rx_bytes_expected(struct usb_ep *ep) { int rx_remain = fastboot_data_remaining(); @@ -495,6 +490,12 @@ static void do_bootm_on_complete(struct usb_ep *ep, struct usb_request *req) do_exit_on_complete(ep, req); }
+static void compl_do_reset(struct usb_ep *ep, struct usb_request *req) +{
- do_exit_on_complete(ep, req);
- do_reset(NULL, 0, 0, NULL);
+}
#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT) static void do_acmd_complete(struct usb_ep *ep, struct usb_request *req) { @@ -544,7 +545,6 @@ static void rx_handler_command(struct usb_ep *ep, struct usb_request *req) case FASTBOOT_COMMAND_REBOOT_FASTBOOTD: case FASTBOOT_COMMAND_REBOOT_RECOVERY: fastboot_func->in_req->complete = compl_do_reset;
g_dnl_trigger_detach(); break;#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT) case FASTBOOT_COMMAND_ACMD: -- 2.32.0