Hi! I am using stm32mp157c-dk2 board. I added support for usb ethernet gadget (the short patch is attached). Then, when I booted the board I see the following output when running ping:
####################################################### STM32MP> ping 10.0.0.1 using dwc2-udc, OUT ep2out-bulk IN ep1in-bulk STATUS ep3in-int MAC f8:dc:7a:00:00:02 HOST MAC f8:dc:7a:00:00:01 RNDIS ready high speed config #2: 2 mA, Ethernet Gadget, using RNDIS USB RNDIS network up! CACHE: Misaligned operation at range [ddcfbcc4, ddcfbd04] Using usb_ether device CACHE: Misaligned operation at range [dbc3c678, dbc3c6f8] CACHE: Misaligned operation at range [dbc3c678, dbc3c6f8] host 10.0.0.1 is alive ###################################################### Is there a way to get rid of the warning? Is the warning hides a real problem? I saw some discussions and patches regarding this issue so I am not sure if the is some problem here. Thanks! Shlomi
From 1c2e523b753ca491e3b6cbbb90547969e404494d Mon Sep 17 00:00:00 2001 From: Shlomi Vaknin <[email protected]> Date: Thu, 8 Oct 2020 12:03:39 +0300 Subject: [PATCH] stm32mp1: add support for usb ether gadget. Add the dwc2-udc to available controllers and call init function of ether gadget in stm32 board late init. Signed-off-by: Shlomi Vaknin <[email protected]> --- board/st/stm32mp1/stm32mp1.c | 4 ++++ drivers/usb/gadget/gadget_chips.h | 8 ++++++++ 2 files changed, 12 insertions(+) diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index 3b677d339b..b46eec2e1c 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -699,6 +699,10 @@ int board_late_init(void) /* for DK1/DK2 boards */ board_check_usb_power(); +#if defined(CONFIG_USB_ETHER) + usb_ether_init(); +#endif + return 0; } diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index 587204cfb7..270d3f0058 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -161,6 +161,12 @@ #define gadget_is_max3420(g) 0 #endif +#ifdef CONFIG_USB_GADGET_DWC2_OTG +#define gadget_is_dwc2(g) (!strcmp("dwc2-udc", (g)->name)) +#else +#define gadget_is_dwc2(g) 0 +#endif + /** * usb_gadget_controller_number - support bcdDevice id convention * @gadget: the controller being driven @@ -224,5 +230,7 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) return 0x24; else if (gadget_is_max3420(gadget)) return 0x25; + else if (gadget_is_dwc2(gadget)) + return 0x26; return -ENOENT; } -- 2.25.1
