From patchwork Thu Mar 6 12:42:50 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 14004441 X-Patchwork-Delegate: geert@linux-m68k.org Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C8B3220A5D3; Thu, 6 Mar 2025 12:43:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741265028; cv=none; b=nAxLwP6bAkp32IkADidzGrOwRF+x7iwAVok1kbmnJeA5THavMxULwinGha+2B/peDMQa/oEWV3Du87rqyts0uSiKsmWpcNpN0qJo8PMz4DWpUeh48VbYExkDRC8BI9fgtPdKjQ4xEbFXhnI13CtmMz+sRSB44o4S3TwAcc02yR0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741265028; c=relaxed/simple; bh=lQ+GyHswV9LdJO32EpZa4ZjymxbNpCbMX0wYomVNl58=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ltn0+MzTFzYcx0vJhJlQ8QeONE/mZ7LzBCphlpnnpErUa0b6XPz7K4N5wHYY2iWg0mknwjLzuJAzO5YYYJEmbgt3bb4Pb3kwtuL6kjKPsG7F5k6WwiSZmW57BGVIqe2az9IwpLbSZFE2EAFOuYuyl8bvb1b3a3NPHR3QouLf5WA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: Bao+8xMlRnK2RiwlaEet6g== X-CSE-MsgGUID: xx+BV1n0Tn2ax0ozd8KY/Q== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 06 Mar 2025 21:43:45 +0900 Received: from localhost.localdomain (unknown [10.226.92.10]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 774354281B0D; Thu, 6 Mar 2025 21:43:42 +0900 (JST) From: Biju Das To: Marc Kleine-Budde , Vincent Mailhol Cc: Biju Das , Wolfram Sang , Geert Uytterhoeven , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , linux-can@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das , linux-renesas-soc@vger.kernel.org Subject: [PATCH v4 11/11] can: rcar_canfd: Add RZ/G3E support Date: Thu, 6 Mar 2025 12:42:50 +0000 Message-ID: <20250306124256.93033-12-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250306124256.93033-1-biju.das.jz@bp.renesas.com> References: <20250306124256.93033-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The CAN-FD IP found on the RZ/G3E SoC is similar to R-Car Gen4, but it has no external clock instead it has clk_ram, it has 6 channels and supports 20 interrupts. Add support for RZ/G3E CAN-FD driver. Signed-off-by: Biju Das --- v3->v4: * No change. v2->v3: * Replaced gen4_type entry with mask_table, shift_table, regs, ch_interface_mode and shared_can_reg. v1->v2: * No change. --- drivers/net/can/rcar/rcar_canfd.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 862f06b4b91e..68b15f3ab14f 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -736,6 +736,18 @@ static const struct rcar_canfd_hw_info rzg2l_hw_info = { .multi_channel_irqs = 1, }; +static const struct rcar_canfd_hw_info r9a09g047_hw_info = { + .mask_table = rcar_gen4_mask_table, + .shift_table = rcar_gen4_shift_table, + .regs = rcar_gen4_regs, + .max_channels = 6, + .postdiv = 1, + .multi_channel_irqs = 1, + .ch_interface_mode = 1, + .shared_can_reg = 1, + .only_internal_clks = 1, +}; + /* Helper functions */ static inline void rcar_canfd_update(u32 mask, u32 val, u32 __iomem *reg) { @@ -1979,6 +1991,7 @@ static int rcar_canfd_probe(struct platform_device *pdev) u32 rule_entry = 0; bool fdmode = true; /* CAN FD only mode - default */ char name[9] = "channelX"; + struct clk *clk_ram; int i; info = of_device_get_match_data(dev); @@ -2068,6 +2081,11 @@ static int rcar_canfd_probe(struct platform_device *pdev) gpriv->extclk = !gpriv->info->only_internal_clks; } + clk_ram = devm_clk_get_optional_enabled(dev, "ram_clk"); + if (IS_ERR(clk_ram)) + return dev_err_probe(dev, PTR_ERR(clk_ram), + "cannot get ram clock\n"); + addr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(addr)) { err = PTR_ERR(addr); @@ -2230,6 +2248,7 @@ static SIMPLE_DEV_PM_OPS(rcar_canfd_pm_ops, rcar_canfd_suspend, static const __maybe_unused struct of_device_id rcar_canfd_of_table[] = { { .compatible = "renesas,r8a779a0-canfd", .data = &rcar_gen4_hw_info }, + { .compatible = "renesas,r9a09g047-canfd", .data = &r9a09g047_hw_info }, { .compatible = "renesas,rcar-gen3-canfd", .data = &rcar_gen3_hw_info }, { .compatible = "renesas,rcar-gen4-canfd", .data = &rcar_gen4_hw_info }, { .compatible = "renesas,rzg2l-canfd", .data = &rzg2l_hw_info },