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Fri, 24 Apr 2026 09:04:08 -0700 (PDT) Received: from localhost.localdomain ([151.70.144.55]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fc10777csm678783845e9.8.2026.04.24.09.04.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Apr 2026 09:04:07 -0700 (PDT) From: Michele Bisogno To: Marek Vasut , Lukasz Majewski , Mattijs Korpershoek Cc: Nobuhiro Iwamatsu , Tom Rini , u-boot@lists.denx.de, Michele Bisogno Subject: [PATCH v6 3/3] usb: gadget: rcar: Add support for RZ/G2L (R9A07G044) Date: Fri, 24 Apr 2026 18:03:16 +0200 Message-Id: <20260424160316.157380-4-micbis.openwrt@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260424160316.157380-1-micbis.openwrt@gmail.com> References: <20260424160316.157380-1-micbis.openwrt@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Sat, 25 Apr 2026 20:03:18 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean The Renesas RZ/G2L (and RZ/G2LC) USBHS controller requires the CNEN bit in the SYSCFG register to be set for function operation. Additionally, its CFIFO is byte-addressable. Introduce a new renesas_usbhs_driver_param structure for the RZ/G2L SoC and link it via the udevice_id data pointer. Update usbhs_probe() to accept the udevice pointer to retrieve these parameters during initialization. This alignment follows the logic used in the Linux kernel renesas_usbhs driver. Reviewed-by: Marek Vasut Signed-off-by: Michele Bisogno --- drivers/usb/gadget/rcar/common.c | 20 ++++++++++++++++++++ drivers/usb/gadget/rcar/renesas_usb.h | 1 + 2 files changed, 21 insertions(+) diff --git a/drivers/usb/gadget/rcar/common.c b/drivers/usb/gadget/rcar/common.c index 2bf0dcff393..10548f7a20c 100644 --- a/drivers/usb/gadget/rcar/common.c +++ b/drivers/usb/gadget/rcar/common.c @@ -92,6 +92,12 @@ void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable) u16 mask = DCFM | DRPD | DPRPU | HSE | USBE; u16 val = HSE | USBE; + /* CNEN bit is required for function operation */ + if (usbhs_get_dparam(priv, has_cnen)) { + mask |= CNEN; + val |= CNEN; + } + /* * if enable * @@ -363,13 +369,21 @@ static int usbhs_probe(struct udevice *dev) { struct usbhs_priv_otg_data *otg_priv = dev_get_priv(dev); struct usbhs_priv *priv = &otg_priv->usbhs_priv; + struct renesas_usbhs_driver_param *plat_param; int ret; + plat_param = (struct renesas_usbhs_driver_param *)dev_get_driver_data(dev); + priv->dparam.type = USBHS_TYPE_RCAR_GEN3; priv->dparam.pio_dma_border = 64; priv->dparam.pipe_configs = usbhsc_new_pipe; priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_new_pipe); + if (plat_param) { + priv->dparam.has_cnen = plat_param->has_cnen; + priv->dparam.cfifo_byte_addr = plat_param->cfifo_byte_addr; + } + /* call pipe and module init */ ret = usbhs_pipe_probe(priv); if (ret < 0) @@ -487,8 +501,14 @@ static int usbhs_udc_otg_remove(struct udevice *dev) return dm_scan_fdt_dev(dev); } +static struct renesas_usbhs_driver_param rzg2l_param = { + .has_cnen = 1, + .cfifo_byte_addr = 1, +}; + static const struct udevice_id usbhs_udc_otg_ids[] = { { .compatible = "renesas,rcar-gen3-usbhs" }, + { .compatible = "renesas,rzg2l-usbhs", .data = (unsigned long)&rzg2l_param }, {}, }; diff --git a/drivers/usb/gadget/rcar/renesas_usb.h b/drivers/usb/gadget/rcar/renesas_usb.h index 8155e3dcaf6..140a70251cf 100644 --- a/drivers/usb/gadget/rcar/renesas_usb.h +++ b/drivers/usb/gadget/rcar/renesas_usb.h @@ -111,6 +111,7 @@ struct renesas_usbhs_driver_param { u32 has_otg:1; /* for controlling PWEN/EXTLP */ u32 has_sudmac:1; /* for SUDMAC */ u32 has_usb_dmac:1; /* for USB-DMAC */ + u32 has_cnen:1; u32 cfifo_byte_addr:1; /* CFIFO is byte addressable */ #define USBHS_USB_DMAC_XFER_SIZE 32 /* hardcode the xfer size */ u32 multi_clks:1; -- 2.34.1