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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7665C77B7A for ; Wed, 31 May 2023 02:59:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234029AbjEaC7T (ORCPT ); Tue, 30 May 2023 22:59:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232877AbjEaC7S (ORCPT ); Tue, 30 May 2023 22:59:18 -0400 Received: from gate2.alliedtelesis.co.nz (gate2.alliedtelesis.co.nz [202.36.163.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87BDB129 for ; Tue, 30 May 2023 19:59:13 -0700 (PDT) Received: from svr-chch-seg1.atlnz.lc (mmarshal3.atlnz.lc [10.32.18.43]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by gate2.alliedtelesis.co.nz (Postfix) with ESMTPS id B1FC82C05CC; Wed, 31 May 2023 14:58:59 +1200 (NZST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alliedtelesis.co.nz; s=mail181024; t=1685501939; bh=pX0AGkZ7cP1J451OpS7d6oUS57yjJPdDVs8gC+pj+vo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w/o8VpgQmgLlAeeHPzDEcU75bwt2oXjZAm6TS5jyeM8P6eqvJiXvUkJLzp7y9ct7j sui37RibmhyC9aohzYj91POf+ncxgDO7JurHxzALErI24NvjjRKrM/sTmJRKLnaWSV kuGAdzjjUVR7pzoSgHcmY3XLyRZ5ubOU0qQU6YtduqwlBf/44uU/W17kwe1aILZJBO duCoUTWJtPLZbGingEQfitax4SbcbkbfyYHfJK6v8R3IbMeO7EIYv1bcT8Rt3w+b6+ GQ61kQq+VZOlN3+fGLJ3Y90KEV6oGkC6/P+rY3gsuqf0MTwWwHZcXTjRl4fLXL8tqy ykBB7PXD2sZdA== Received: from pat.atlnz.lc (Not Verified[10.32.16.33]) by svr-chch-seg1.atlnz.lc with Trustwave SEG (v8,2,6,11305) id ; Wed, 31 May 2023 14:58:59 +1200 Received: from chrisp-dl.ws.atlnz.lc (chrisp-dl.ws.atlnz.lc [10.33.22.30]) by pat.atlnz.lc (Postfix) with ESMTP id 6CE7113EE4D; Wed, 31 May 2023 14:58:59 +1200 (NZST) Received: by chrisp-dl.ws.atlnz.lc (Postfix, from userid 1030) id 68543281742; Wed, 31 May 2023 14:58:59 +1200 (NZST) From: Chris Packham To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, arnd@arndb.de, daniel.lezcano@linaro.org, neil.armstrong@linaro.org, f.fainelli@gmail.com, christophe.kerello@foss.st.com, liang.yang@amlogic.com, jdelvare@suse.de Cc: linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chris Packham Subject: [PATCH 2/2] mtd: rawnand: marvell: add support for AC5 SoC Date: Wed, 31 May 2023 14:58:47 +1200 Message-Id: <20230531025847.1284862-3-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230531025847.1284862-1-chris.packham@alliedtelesis.co.nz> References: <20230531025847.1284862-1-chris.packham@alliedtelesis.co.nz> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SEG-SpamProfiler-Analysis: v=2.3 cv=cLieTWWN c=1 sm=1 tr=0 a=KLBiSEs5mFS1a/PbTCJxuA==:117 a=P0xRbXHiH_UA:10 a=FN2KoAgMzK-72ix3NDkA:9 X-SEG-SpamProfiler-Score: 0 x-atlnz-ls: pat Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support for the AC5/AC5X SoC from Marvell. The NFC on this SoC only supports SDR modes up to 3. Marvell's SDK includes some predefined values for the ndtr registers. These haven't been incorporated as the existing code seems to get good values based on measurements taken with an oscilloscope. Signed-off-by: Chris Packham --- drivers/mtd/nand/raw/Kconfig | 2 +- drivers/mtd/nand/raw/marvell_nand.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index b523354dfb00..0f4cbb497010 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -160,7 +160,7 @@ config MTD_NAND_MARVELL including: - PXA3xx processors (NFCv1) - 32-bit Armada platforms (XP, 37x, 38x, 39x) (NFCv2) - - 64-bit Aramda platforms (7k, 8k) (NFCv2) + - 64-bit Aramda platforms (7k, 8k, ac5) (NFCv2) =20 config MTD_NAND_SLC_LPC32XX tristate "NXP LPC32xx SLC NAND controller" diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/m= arvell_nand.c index 30c15e4e1cc0..b9a8dd324211 100644 --- a/drivers/mtd/nand/raw/marvell_nand.c +++ b/drivers/mtd/nand/raw/marvell_nand.c @@ -375,6 +375,7 @@ static inline struct marvell_nand_chip_sel *to_nand_s= el(struct marvell_nand_chip * BCH error detection and correction algorithm, * NDCB3 register has been added * @use_dma: Use dma for data transfers + * @max_mode_number: Maximum timing mode supported by the controller */ struct marvell_nfc_caps { unsigned int max_cs_nb; @@ -383,6 +384,7 @@ struct marvell_nfc_caps { bool legacy_of_bindings; bool is_nfcv2; bool use_dma; + unsigned int max_mode_number; }; =20 /** @@ -2376,6 +2378,9 @@ static int marvell_nfc_setup_interface(struct nand_= chip *chip, int chipnr, if (IS_ERR(sdr)) return PTR_ERR(sdr); =20 + if (nfc->caps->max_mode_number && nfc->caps->max_mode_number < conf->ti= mings.mode) + return -EOPNOTSUPP; + /* * SDR timings are given in pico-seconds while NFC timings must be * expressed in NAND controller clock cycles, which is half of the @@ -3073,6 +3078,13 @@ static const struct marvell_nfc_caps marvell_armad= a_8k_nfc_caps =3D { .is_nfcv2 =3D true, }; =20 +static const struct marvell_nfc_caps marvell_ac5_caps =3D { + .max_cs_nb =3D 2, + .max_rb_nb =3D 1, + .is_nfcv2 =3D true, + .max_mode_number =3D 3, +}; + static const struct marvell_nfc_caps marvell_armada370_nfc_caps =3D { .max_cs_nb =3D 4, .max_rb_nb =3D 2, @@ -3121,6 +3133,10 @@ static const struct of_device_id marvell_nfc_of_id= s[] =3D { .compatible =3D "marvell,armada-8k-nand-controller", .data =3D &marvell_armada_8k_nfc_caps, }, + { + .compatible =3D "marvell,ac5-nand-controller", + .data =3D &marvell_ac5_caps, + }, { .compatible =3D "marvell,armada370-nand-controller", .data =3D &marvell_armada370_nfc_caps, --=20 2.40.1