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(80.71.140.73.ipv4.parknet.dk. [80.71.140.73]) by smtp.gmail.com with ESMTPSA id g6-20020a170906198600b0073dc6def190sm4470416ejd.158.2022.08.29.06.51.49 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Aug 2022 06:51:49 -0700 (PDT) From: Emil Renner Berthing To: kernel-team@lists.ubuntu.com Subject: [SRU][K/Unstable][PATCH 0/4] Add USB support for the PolarFire RISC-V SoC Date: Mon, 29 Aug 2022 15:51:43 +0200 Message-Id: <20220829135148.1491968-1-emil.renner.berthing@canonical.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" [Impact] The 5.19 kernel contains support for the PolarFire Icicle board but the USB driver is missing. The following patches are available in Linux v6.0-rc1 and are sufficient to make USB usable on the PolarFire Icicle board. Please, apply them to the 5.19 kernel and set CONFIG_USB_MUSB_POLARFIRE_SOC=m. 7a96b6ea90a4 ("usb: musb: Add support for PolarFire SoC's musb controller") https://lore.kernel.org/r/20220613114642.1615292-2-conor.dooley@microchip.com 21cdd6a0e844 ("usb: musb: mpfs: Fix error codes in probe()") https://lore.kernel.org/r/YrVmLEc/FOEzNdzj@kili 98ceba755928 ("usb: musb: mpfs: add missing clk_disable_unprepare() in mpfs_remove()" https://lore.kernel.org/all/YrVmLEc%2FFOEzNdzj@kili/ With this change internal USB devices are fully usable. External devices are supported with the following Jumper settings: * J17 closed * J15 open [Test Plan] Ensure the correct jumper settings: * J17 closed * J15 open Use the SiFive Unmatched preinstalled image and install the 5.19 kernel. Try to boot on the Polarfire Icicle board. * Run lsusb. * Attach a USB device to J16 (USB port beside SD-card slot) * Run lsusb again. The new device appears. [Where problems could occur] The fix only concerns a board which has been unsupported by Ubuntu yet. In case of an incorrect fix the board might not boot or otherwise malfunction. Conor Dooley (1): usb: musb: Add support for PolarFire SoC's musb controller Dan Carpenter (1): usb: musb: mpfs: Fix error codes in probe() Emil Renner Berthing (1): UBUNTU: [Config] Enable CONFIG_USB_MUSB_POLARFIRE_SOC on riscv64 Yang Yingliang (1): usb: musb: mpfs: add missing clk_disable_unprepare() in mpfs_remove() debian.master/config/annotations | 1 + debian.master/config/config.common.ubuntu | 1 + drivers/usb/musb/Kconfig | 13 +- drivers/usb/musb/Makefile | 1 + drivers/usb/musb/mpfs.c | 269 ++++++++++++++++++++++ 5 files changed, 284 insertions(+), 1 deletion(-) create mode 100644 drivers/usb/musb/mpfs.c Acked-by: Tim Gardner Acked-by: Cengiz Can