From patchwork Sun Aug 16 08:24:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Wunderlich X-Patchwork-Id: 1345445 X-Patchwork-Delegate: marek.vasut@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=mailerdienst.de header.i=@mailerdienst.de header.a=rsa-sha256 header.s=20200217 header.b=LiMHCE+8; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4BTqxq3wdyz9sTN for ; Sun, 16 Aug 2020 18:25:51 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 26A9C8222A; Sun, 16 Aug 2020 10:24:57 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=mailerdienst.de header.i=@mailerdienst.de header.b="LiMHCE+8"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 0E587821F8; Sun, 16 Aug 2020 10:24:52 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from mxout3.routing.net (mxout3.routing.net [IPv6:2a03:2900:1:a::8]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 6AB03821D4 for ; Sun, 16 Aug 2020 10:24:47 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=linux@fw-web.de Received: from mxbox4.masterlogin.de (unknown [192.168.10.79]) by mxout3.routing.net (Postfix) with ESMTP id 06B8260504; Sun, 16 Aug 2020 08:24:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailerdienst.de; s=20200217; t=1597566287; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VIZ70gGwrw8adXpChd+g5v7IL7Ydz7GStUSjpP9ZCMI=; b=LiMHCE+8Iv/5TMjySx3J/xARJJ0CogkmcDhOChXngT1CJxa7EFvUv+zsvndUEWj31WvFoD 5iPnE+/z1hg+NKc8N3nQQXn5qzYNx+ew1OOkV3Ki1N29RwnWM+UnVnO9BZ8zaosBwWQv+c GzTGZx7ixKIra+aSpOsad9Scn3nwu/g= Received: from localhost.localdomain (fttx-pool-80.208.212.131.bambit.de [80.208.212.131]) by mxbox4.masterlogin.de (Postfix) with ESMTPSA id 90F478023E; Sun, 16 Aug 2020 08:24:46 +0000 (UTC) From: Frank Wunderlich To: u-boot@lists.denx.de Cc: Frank Wunderlich , GSS_MTK_Uboot_upstream@mediatek.com, chunfeng.yun@mediatek.com Subject: [PATCH v1 04/10] ahci: mediatek: add ahci driver Date: Sun, 16 Aug 2020 10:24:25 +0200 Message-Id: <20200816082431.5087-5-linux@fw-web.de> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200816082431.5087-1-linux@fw-web.de> References: <20200816082431.5087-1-linux@fw-web.de> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 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 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Frank Wunderlich add AHCI driver ported from linux https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/ata/ahci_mtk.c Signed-off-by: Frank Wunderlich --- drivers/ata/Kconfig | 8 +++ drivers/ata/Makefile | 1 + drivers/ata/mtk_ahci.c | 130 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 139 insertions(+) create mode 100644 drivers/ata/mtk_ahci.c diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index d8c9756c2a..f2f8275aec 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -130,4 +130,12 @@ config AHCI_MVEBU onboard AHCI SATA. If unsure, say N. + +config MTK_AHCI + bool "Enable Mediatek AHCI driver support" + depends on AHCI + help + Enable this driver to support Sata devices through + Mediatek AHCI controller (e.g. MT7622). + endmenu diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index a69edb10f7..98fb480700 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -19,3 +19,4 @@ obj-$(CONFIG_SATA_SIL) += sata_sil.o obj-$(CONFIG_SANDBOX) += sata_sandbox.o obj-$(CONFIG_AHCI_MVEBU) += ahci_mvebu.o obj-$(CONFIG_SUNXI_AHCI) += ahci_sunxi.o +obj-$(CONFIG_MTK_AHCI) += mtk_ahci.o diff --git a/drivers/ata/mtk_ahci.c b/drivers/ata/mtk_ahci.c new file mode 100644 index 0000000000..8e09c5f9e6 --- /dev/null +++ b/drivers/ata/mtk_ahci.c @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * MTK SATA platform driver + * + * (C) Copyright 2020 + * Mediatek + * + * Author: Frank Wunderlich + * based on https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/ata/ahci_mtk.c + * Author: Ryder Lee + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SYS_CFG 0x14 +#define SYS_CFG_SATA_MSK GENMASK(31, 30) +#define SYS_CFG_SATA_EN BIT(31) + +struct mtk_ahci_priv { + void *base; + + struct ahci_uc_priv ahci_priv; + struct regmap *mode; + struct reset_ctl_bulk rst_bulk; +}; + +static int mtk_ahci_bind(struct udevice *dev) +{ + struct udevice *scsi_dev; + + return ahci_bind_scsi(dev, &scsi_dev); +} + +static int mtk_ahci_ofdata_to_platdata(struct udevice *dev) +{ + struct mtk_ahci_priv *priv = dev_get_priv(dev); + + priv->base = devfdt_remap_addr_index(dev, 0); + + return 0; +} + +static int mtk_ahci_parse_property(struct ahci_uc_priv *hpriv, + struct udevice *dev) +{ + struct mtk_ahci_priv *plat = dev_get_priv(dev); + const void *fdt = gd->fdt_blob; + + /* enable SATA function if needed */ + if (fdt_get_property(fdt, dev_of_offset(dev), + "mediatek,phy-mode", NULL)) { + plat->mode = syscon_regmap_lookup_by_phandle(dev, + "mediatek,phy-mode"); + if (IS_ERR(plat->mode)) { + dev_err(dev, "missing phy-mode phandle\n"); + return PTR_ERR(plat->mode); + } + regmap_update_bits(plat->mode, SYS_CFG, + SYS_CFG_SATA_MSK, SYS_CFG_SATA_EN); + } + + ofnode_read_u32(dev->node, "ports-implemented", &hpriv->port_map); + return 0; +} + +static int mtk_ahci_probe(struct udevice *dev) +{ + struct mtk_ahci_priv *priv = dev_get_priv(dev); + int ret; + struct phy phy; + + ret = mtk_ahci_parse_property(&priv->ahci_priv, dev); + if (ret) + return ret; + + ret = reset_get_bulk(dev, &priv->rst_bulk); + if (!ret) { + reset_assert_bulk(&priv->rst_bulk); + reset_deassert_bulk(&priv->rst_bulk); + } else { + dev_err(dev, "Failed to get reset: %d\n", ret); + } + + ret = generic_phy_get_by_name(dev, "sata-phy", &phy); + if (ret) { + pr_err("can't get the phy from DT\n"); + return ret; + } + + ret = generic_phy_init(&phy); + if (ret) { + pr_err("unable to initialize the sata phy\n"); + return ret; + } + + ret = generic_phy_power_on(&phy); + if (ret) { + pr_err("unable to power on the sata phy\n"); + return ret; + } + + return ahci_probe_scsi(dev, (ulong)priv->base); +} + +static const struct udevice_id mtk_ahci_ids[] = { + { .compatible = "mediatek,mtk-ahci" }, + { } +}; + +U_BOOT_DRIVER(mtk_ahci) = { + .name = "mtk_ahci", + .id = UCLASS_AHCI, + .of_match = mtk_ahci_ids, + .bind = mtk_ahci_bind, + .ofdata_to_platdata = mtk_ahci_ofdata_to_platdata, + .ops = &scsi_ops, + .probe = mtk_ahci_probe, + .priv_auto_alloc_size = sizeof(struct mtk_ahci_priv), +};