From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43A05C4742C for ; Sat, 7 Nov 2020 13:31:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EAA1A206ED for ; Sat, 7 Nov 2020 13:31:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OSEmRkLM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727824AbgKGNbZ (ORCPT ); Sat, 7 Nov 2020 08:31:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727084AbgKGNbY (ORCPT ); Sat, 7 Nov 2020 08:31:24 -0500 Received: from mail-qt1-x844.google.com (mail-qt1-x844.google.com [IPv6:2607:f8b0:4864:20::844]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8793DC0613CF; Sat, 7 Nov 2020 05:31:24 -0800 (PST) Received: by mail-qt1-x844.google.com with SMTP id r8so2813648qtp.13; Sat, 07 Nov 2020 05:31:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:autocrypt:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=9TDrtZnW4jo1TeqMQCFxvIkdEGTptcp2h1cSMWL7ZOs=; b=OSEmRkLMwxQ2Gv3EtxFongMvXrd+KlowjuYwWtzrG5cURuZVSAhA4c2s6Yy3rc8bkY jOROKTZAEY4MvgAXqF2Z70l1P62fqYjrwNlE1HYLatU9dbiZXbDMA1eI0f6HC2+55NdL 2OiSTbw0kULdCC06fGuly22Gr+Ok9Ajrqo4cspDckY+Y/evRyxdy/n4Vg3HtZolku6/E l8eD2ea5brBnlzVQ19+xacwokGIgRJb59cRatPvAkVUHngNH//IXago7iSEQalIBEFBR Y8igevhxFcwzu7EIHaSWs2TTLOMOIdKwYnwrHGJCYEExSQgJiZonIzqIrnR7OVwcwRW/ bgPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:autocrypt:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=9TDrtZnW4jo1TeqMQCFxvIkdEGTptcp2h1cSMWL7ZOs=; b=KbTatJ9JwjdxrE/0Rw6OKJRXs7y9db6lEcMBhTlc4c9q0E/Zo+nXubSpIwzFdCoPRA 4CHwteo2TQyu+Pi0EgG0qgVDUzDsuM0sKrDTx/uI1l9ELT829vAe9ZgS3A6Zjz/NMswn QqbTMsFYVyOrZQxKcpK7JhuksrFE/N2p97SpLYV2Kx4km8JEIuzg1VCh1Ab22YZT76Hv DsGMwDimiW6Ig1VdWNLz8obMHT/TfNprrKyCeSt5RQb8CCnKOrKV468VoTgl1lTNC+KP N9ShC/u2m93RqLp3fm0FD5jcyOJpdVjd2cnUbwEM7Lsq5ASGjmWDMu97s6ekoAC8PW8m Hx1w== X-Gm-Message-State: AOAM5331eNvBUch0SRoKsu53KMLDQr0iuQ2qMnMAry+gs7ZKkqqzWYY8 Efae1DnhETp6PTPvW+2ljmc= X-Google-Smtp-Source: ABdhPJzUCiPw92igZX6MiiIzBVtQxqlpGyp5xkP+RKxTVI+n3YKb3+ZvO1v+OEQuJq1SNLYmhCaMSw== X-Received: by 2002:ac8:7408:: with SMTP id p8mr5632831qtq.320.1604755883839; Sat, 07 Nov 2020 05:31:23 -0800 (PST) Received: from [192.168.1.201] (pool-108-51-35-162.washdc.fios.verizon.net. [108.51.35.162]) by smtp.googlemail.com with ESMTPSA id r55sm2480878qte.8.2020.11.07.05.31.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 07 Nov 2020 05:31:23 -0800 (PST) Subject: Re: [PATCH 06/32] spi: dw: Add support for the Kendryte K210 SoC To: Damien Le Moal , Palmer Dabbelt , linux-riscv@lists.infradead.org, Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Serge Semin , Mark Brown , linux-spi@vger.kernel.org, Stephen Boyd , linux-clk@vger.kernel.org, Linus Walleij , linux-gpio@vger.kernel.org, Philipp Zabel References: <20201107081420.60325-1-damien.lemoal@wdc.com> <20201107081420.60325-7-damien.lemoal@wdc.com> From: Sean Anderson Autocrypt: addr=seanga2@gmail.com; prefer-encrypt=mutual; keydata= mQENBFe74PkBCACoLC5Zq2gwrDcCkr+EPGsT14bsxrW07GiYzQhLCgwnPdEpgU95pXltbFhw 46GfyffABWxHKO2x+3L1S6ZxC5AiKbYXo7lpnTBYjamPWYouz+VJEVjUx9aaSEByBah5kX6a lKFZWNbXLAJh+dE1HFaMi3TQXXaInaREc+aO1F7fCa2zNE75ja+6ah8L4TPRFZ2HKQzve0/Y GXtoRw97qmnm3U36vKWT/m2AiLF619F4T1mHvlfjyd9hrVwjH5h/2rFyroXVXBZHGA9Aj8eN F2si35dWSZlIwXkNu9bXp0/pIu6FD0bI+BEkD5S7aH1G1iAcMFi5Qq2RNa041DfQSDDHABEB AAG0K1NlYW4gR2FsbGFnaGVyIEFuZGVyc29uIDxzZWFuZ2EyQGdtYWlsLmNvbT6JAVcEEwEK AEECGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4ACGQEWIQSQYR1bzo1I0gPoYCg+6I/stKEQ bgUCXT+S2AUJB2TlXwAKCRA+6I/stKEQbhNOB/9ooea0hU9Sgh7PBloU6CgaC5mlqPLB7NTp +JkB+nh3Fqhk+qLZwzEynnuDLl6ESpVHIc0Ym1lyF4gT3DsrlGT1h0Gzw7vUwd1+ZfN0CuIx Rn861U/dAUjvbtN5kMBqOI4/5ea+0r7MACcIVnKF/wMXBD8eypHsorT2sJTzwZ6DRCNP70C5 N1ahpqqNmXe0uLdP0pu55JCqhrGw2SinkRMdWyhSxT56uNwIVHGhLTqH7Q4t1N6G1EH626qa SvIJsWlNpll6Y3AYLDw2/Spw/hqieS2PQ/Ky3rPZnvJt7/aSNYsKoFGX0yjkH67Uq8Lx0k1L w8jpXnbEPQN3A2ZJCbeM Message-ID: <53859725-ca0b-5f57-9147-10346707b3cb@gmail.com> Date: Sat, 7 Nov 2020 08:31:22 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201107081420.60325-7-damien.lemoal@wdc.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org On 11/7/20 3:13 AM, Damien Le Moal wrote: > The DW SPI master of the Kendryte K210 RISC-V SoC uses the 32-bits > ctrlr0 register format. This SoC is also quite slow and gets significant > SD card performance improvements from using no-delay polled transfers. > Add the dw_spi_k210_init() function tied to the > "canaan,kendryte-k210-spi" compatible string to set the > DW_SPI_CAP_DFS_32 and DW_SPI_CAP_POLL_NODELAY DW SPI capability fields > for this SoC. > > Signed-off-by: Damien Le Moal > --- > drivers/spi/spi-dw-mmio.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c > index 3f1bc384cb45..a00def6c5b39 100644 > --- a/drivers/spi/spi-dw-mmio.c > +++ b/drivers/spi/spi-dw-mmio.c > @@ -223,6 +223,14 @@ static int dw_spi_keembay_init(struct platform_device *pdev, > return 0; > } > > +static int dw_spi_k210_init(struct platform_device *pdev, > + struct dw_spi_mmio *dwsmmio) > +{ > + dwsmmio->dws.caps = DW_SPI_CAP_DFS_32 | DW_SPI_CAP_POLL_NODELAY; Can't you do runtime detection of DFS_32 in probe? --Sean > + > + return 0; > +} > + > static int dw_spi_mmio_probe(struct platform_device *pdev) > { > int (*init_func)(struct platform_device *pdev, > @@ -340,6 +348,7 @@ static const struct of_device_id dw_spi_mmio_of_match[] = { > { .compatible = "snps,dwc-ssi-1.01a", .data = dw_spi_dwc_ssi_init}, > { .compatible = "intel,keembay-ssi", .data = dw_spi_keembay_init}, > { .compatible = "microchip,sparx5-spi", dw_spi_mscc_sparx5_init}, > + { .compatible = "canaan,kendryte-k210-spi", .data = dw_spi_k210_init}, > { /* end of table */} > }; > MODULE_DEVICE_TABLE(of, dw_spi_mmio_of_match); > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.0 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27BA8C388F9 for ; Sat, 7 Nov 2020 13:31:43 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AFCEE206ED for ; Sat, 7 Nov 2020 13:31:42 +0000 (UTC) Authentication-Results: mail.kernel.org; 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[108.51.35.162]) by smtp.googlemail.com with ESMTPSA id r55sm2480878qte.8.2020.11.07.05.31.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 07 Nov 2020 05:31:23 -0800 (PST) Subject: Re: [PATCH 06/32] spi: dw: Add support for the Kendryte K210 SoC To: Damien Le Moal , Palmer Dabbelt , linux-riscv@lists.infradead.org, Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Serge Semin , Mark Brown , linux-spi@vger.kernel.org, Stephen Boyd , linux-clk@vger.kernel.org, Linus Walleij , linux-gpio@vger.kernel.org, Philipp Zabel References: <20201107081420.60325-1-damien.lemoal@wdc.com> <20201107081420.60325-7-damien.lemoal@wdc.com> From: Sean Anderson Autocrypt: addr=seanga2@gmail.com; prefer-encrypt=mutual; keydata= mQENBFe74PkBCACoLC5Zq2gwrDcCkr+EPGsT14bsxrW07GiYzQhLCgwnPdEpgU95pXltbFhw 46GfyffABWxHKO2x+3L1S6ZxC5AiKbYXo7lpnTBYjamPWYouz+VJEVjUx9aaSEByBah5kX6a lKFZWNbXLAJh+dE1HFaMi3TQXXaInaREc+aO1F7fCa2zNE75ja+6ah8L4TPRFZ2HKQzve0/Y GXtoRw97qmnm3U36vKWT/m2AiLF619F4T1mHvlfjyd9hrVwjH5h/2rFyroXVXBZHGA9Aj8eN F2si35dWSZlIwXkNu9bXp0/pIu6FD0bI+BEkD5S7aH1G1iAcMFi5Qq2RNa041DfQSDDHABEB AAG0K1NlYW4gR2FsbGFnaGVyIEFuZGVyc29uIDxzZWFuZ2EyQGdtYWlsLmNvbT6JAVcEEwEK AEECGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4ACGQEWIQSQYR1bzo1I0gPoYCg+6I/stKEQ bgUCXT+S2AUJB2TlXwAKCRA+6I/stKEQbhNOB/9ooea0hU9Sgh7PBloU6CgaC5mlqPLB7NTp +JkB+nh3Fqhk+qLZwzEynnuDLl6ESpVHIc0Ym1lyF4gT3DsrlGT1h0Gzw7vUwd1+ZfN0CuIx Rn861U/dAUjvbtN5kMBqOI4/5ea+0r7MACcIVnKF/wMXBD8eypHsorT2sJTzwZ6DRCNP70C5 N1ahpqqNmXe0uLdP0pu55JCqhrGw2SinkRMdWyhSxT56uNwIVHGhLTqH7Q4t1N6G1EH626qa SvIJsWlNpll6Y3AYLDw2/Spw/hqieS2PQ/Ky3rPZnvJt7/aSNYsKoFGX0yjkH67Uq8Lx0k1L w8jpXnbEPQN3A2ZJCbeM Message-ID: <53859725-ca0b-5f57-9147-10346707b3cb@gmail.com> Date: Sat, 7 Nov 2020 08:31:22 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201107081420.60325-7-damien.lemoal@wdc.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201107_083125_448516_407C6D0D X-CRM114-Status: GOOD ( 21.92 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 11/7/20 3:13 AM, Damien Le Moal wrote: > The DW SPI master of the Kendryte K210 RISC-V SoC uses the 32-bits > ctrlr0 register format. This SoC is also quite slow and gets significant > SD card performance improvements from using no-delay polled transfers. > Add the dw_spi_k210_init() function tied to the > "canaan,kendryte-k210-spi" compatible string to set the > DW_SPI_CAP_DFS_32 and DW_SPI_CAP_POLL_NODELAY DW SPI capability fields > for this SoC. > > Signed-off-by: Damien Le Moal > --- > drivers/spi/spi-dw-mmio.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c > index 3f1bc384cb45..a00def6c5b39 100644 > --- a/drivers/spi/spi-dw-mmio.c > +++ b/drivers/spi/spi-dw-mmio.c > @@ -223,6 +223,14 @@ static int dw_spi_keembay_init(struct platform_device *pdev, > return 0; > } > > +static int dw_spi_k210_init(struct platform_device *pdev, > + struct dw_spi_mmio *dwsmmio) > +{ > + dwsmmio->dws.caps = DW_SPI_CAP_DFS_32 | DW_SPI_CAP_POLL_NODELAY; Can't you do runtime detection of DFS_32 in probe? --Sean > + > + return 0; > +} > + > static int dw_spi_mmio_probe(struct platform_device *pdev) > { > int (*init_func)(struct platform_device *pdev, > @@ -340,6 +348,7 @@ static const struct of_device_id dw_spi_mmio_of_match[] = { > { .compatible = "snps,dwc-ssi-1.01a", .data = dw_spi_dwc_ssi_init}, > { .compatible = "intel,keembay-ssi", .data = dw_spi_keembay_init}, > { .compatible = "microchip,sparx5-spi", dw_spi_mscc_sparx5_init}, > + { .compatible = "canaan,kendryte-k210-spi", .data = dw_spi_k210_init}, > { /* end of table */} > }; > MODULE_DEVICE_TABLE(of, dw_spi_mmio_of_match); > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv