From patchwork Fri Aug 9 17:21:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 13759304 Received: from mail-lj1-f169.google.com (mail-lj1-f169.google.com [209.85.208.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 64B56176AB8; Fri, 9 Aug 2024 23:02:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.169 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723244563; cv=none; b=kNLfjaTkFsvcn3kpQCIj8MMT4ia9cg+b+cVwhgaY6wb2/419HUB7TXgK5WXmNPVLImP7gMllClXo9afwn5yZnTO7GMsb+kRxk+z7Nd67u/zNjFJiDyMY02/lc7ZeepXnWr0FF9qd3/a3m3qn5mrr/j0ZuFM/+mVPRkaAEjZeUBY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723244563; c=relaxed/simple; bh=Ax4BMVXvqmSBg6QIo8pDEUgQHsze4QAEeW6gBsTEWoc=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CKpGTwpmqzLYTsNPhjYyAuGFd0y6djLP4xOcYBpeQPjTmH6CZefcMfoLw1vv25gPOPgCBEwQpTDI0y/LaySYXxGi3SXgJdrALhPJyyOsSr8wKUehqZNgkD0pCAIISX6oyVlA8hGDg0qWNvameaSkEyIAGSAwcx/7IJshF/okjWk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=RwusFdoi; arc=none smtp.client-ip=209.85.208.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RwusFdoi" Received: by mail-lj1-f169.google.com with SMTP id 38308e7fff4ca-2f025b94e07so28934031fa.0; Fri, 09 Aug 2024 16:02:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1723244559; x=1723849359; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=W8UY9azmTjhPunDkBNM5W4aID9KMi7XRKzM/JmHz9bA=; b=RwusFdoiWqdbpACTRPtCphF45wlGMqfmhfVPD08anmr9jS+/xS3z6KE2haWP5X9t2C qevu8hrnCZiCe32Jm7RRAppLpk7rUpP9F+V5YbGMZ4Ux/45J4lbVSgxUBbfVIbSONfGs f/iFL9b2SCPIGufO5nrQDY5TgrCFgycs+eXl7yWeTBiKDluDUxLbtjg7bWFOSM9cZjt4 aLTz4sCRMnrDmBkJoBjKNhoIT05Sb3Ck+vMEFq+Q3X73AR84M7k7/xROPli9AAnEGOTr pmoZ5tyHQ5wI5j+ILq8lHoH3KwefUl7YMpxvqAuTjiUik1hiOqj62AsLvLiT5Tj0mQ91 ZpYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723244559; x=1723849359; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=W8UY9azmTjhPunDkBNM5W4aID9KMi7XRKzM/JmHz9bA=; b=q2eZMN1FcKxJD3nl0627f9+R1DkygkD94zt4ENSm58OAUabjHOX3iZhw1qOZz9ZIaR nEwW94eAiLdtKIeyytL2RTugra3v7iznF6gwn9Bs5ySpT7Vi0sHB58Z1Y/TP9fz+vbh6 ChjOXOnAGzd0Dp+OapfAcueQUVefpeaHPxHS/cGhTW6LkgSsggGpNQxjZXYBKeRc10u9 48/C//Tr3URhKAPGwekcWWMf/KtWFA/u14jnAZW5Q+XPh183eDPgkE9BQHM4nuarESWk o1MlfLZ4kl2haqxVBiYDGz2Iags12NdUUdk/EfSo5VHDgzcLKKDw/jN41Gm+pleLvQ1V IR2w== X-Forwarded-Encrypted: i=1; AJvYcCUL7ITanG72sJovzFAp4HNXxxJ4DV8m/BcOQgIzBDz4NaHUSDAHx26x3q3MSFx5X6BOd5WXmMdCzY5QPClTVwU/x1Y/HcRIWX0ac1W5gPV4S9e1CQt1IHGPjJeuBSUivowLiIWDRXbAL0dw86H/rBlgs2P0rB1FWVZsbYCJnPR42IyhTQ== X-Gm-Message-State: AOJu0Yws8fzTo6N06Gp/Mqz2UsmwKWJSnVO4QU1Rk+Lllxwe9JCRm4wn zribSYXo//tTNKIPr98QdlDS5pZthVHA390JPfqslaBQU/84zs11o5PMIg== X-Google-Smtp-Source: AGHT+IEBf39cMvZ+atF9aIQP/rIJt8VoQT1fN0vWpYzEGZAa9wO0kPgv+u0z6JAoBudts8qWd6j9rA== X-Received: by 2002:a2e:a411:0:b0:2ef:2e1c:79ae with SMTP id 38308e7fff4ca-2f1a6c5add1mr22344811fa.19.1723244558978; Fri, 09 Aug 2024 16:02:38 -0700 (PDT) Received: from localhost.localdomain (host-87-10-253-138.retail.telecomitalia.it. [87.10.253.138]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-429c75044a8sm7987485e9.9.2024.08.09.16.02.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Aug 2024 16:02:38 -0700 (PDT) From: Christian Marangi To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Joern Engel , Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Saravana Kannan , Christian Marangi , Thomas Bogendoerfer , Wolfram Sang , Florian Fainelli , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org Subject: [PATCH v4 7/7] mtd: parser: add support for Airoha parser Date: Fri, 9 Aug 2024 19:21:05 +0200 Message-ID: <20240809172106.25892-8-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240809172106.25892-1-ansuelsmth@gmail.com> References: <20240809172106.25892-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support for Airoha parser based on a post parse ofpart function. Airoha partition table follow normal fixed-partition implementation with a special implementation for the ART partition. This is always the last partition and is placed from the end of the flash - the partition size. To enable this special implementation for ART partition, the relevant node require the "airoha,dynamic-art" compatible. With that declared, offset value is ignored and real offset is updated with the calculated value. Due to usage of specific bad block management driver, the MTD size might vary hence the ART partition offset needs to be dynamically parsed and can't be declared statically. Signed-off-by: Christian Marangi --- drivers/mtd/parsers/Kconfig | 10 +++++ drivers/mtd/parsers/Makefile | 1 + drivers/mtd/parsers/ofpart_airoha.c | 57 +++++++++++++++++++++++++++++ drivers/mtd/parsers/ofpart_airoha.h | 18 +++++++++ drivers/mtd/parsers/ofpart_core.c | 6 +++ 5 files changed, 92 insertions(+) create mode 100644 drivers/mtd/parsers/ofpart_airoha.c create mode 100644 drivers/mtd/parsers/ofpart_airoha.h diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig index da03ab6efe04..d6c53aa16ea6 100644 --- a/drivers/mtd/parsers/Kconfig +++ b/drivers/mtd/parsers/Kconfig @@ -72,6 +72,16 @@ config MTD_OF_PARTS flash memory node, as described in Documentation/devicetree/bindings/mtd/mtd.yaml. +config MTD_OF_PARTS_AIROHA + bool "Airoha EN7815 partitioning support" + depends on MTD_OF_PARTS && (ARCH_AIROHA || COMPILE_TEST) + default ARCH_AIROHA + help + This provides partitions parser for Airoha EN7815 family devices + that can have dynamic "ART" partition at the end of the flash. + It takes care of finding the correct offset and update property + with it. + config MTD_OF_PARTS_BCM4908 bool "BCM4908 partitioning support" depends on MTD_OF_PARTS && (ARCH_BCMBCA || COMPILE_TEST) diff --git a/drivers/mtd/parsers/Makefile b/drivers/mtd/parsers/Makefile index 9b00c62b837a..d67f9b4d39ac 100644 --- a/drivers/mtd/parsers/Makefile +++ b/drivers/mtd/parsers/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_MTD_BRCM_U_BOOT) += brcm_u-boot.o obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o ofpart-y += ofpart_core.o +ofpart-$(CONFIG_MTD_OF_PARTS_AIROHA) += ofpart_airoha.o ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908) += ofpart_bcm4908.o ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o diff --git a/drivers/mtd/parsers/ofpart_airoha.c b/drivers/mtd/parsers/ofpart_airoha.c new file mode 100644 index 000000000000..5e2cc7b6376b --- /dev/null +++ b/drivers/mtd/parsers/ofpart_airoha.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2024 Christian Marangi + */ + +#include +#include +#include + +#include "ofpart_airoha.h" + +int airoha_partitions_post_parse(struct mtd_info *mtd, + struct mtd_partition *parts, + int nr_parts) +{ + struct mtd_partition *part; + int len, a_cells, s_cells; + struct device_node *pp; + struct property *prop; + const __be32 *reg; + __be32 *new_reg; + + part = &parts[nr_parts - 1]; + pp = part->of_node; + + /* Skip if ART partition have a valid offset instead of a dynamic one */ + if (!of_device_is_compatible(pp, "airoha,dynamic-art")) + return 0; + + /* ART partition is set at the end of flash - size */ + part->offset = mtd->size - part->size; + + /* Update the offset with the new calculate value in DT */ + prop = kzalloc(sizeof(*prop), GFP_KERNEL); + if (!prop) + return -ENOMEM; + + /* Reg already validated by fixed-partition parser */ + reg = of_get_property(pp, "reg", &len); + + /* Fixed partition */ + a_cells = of_n_addr_cells(pp); + s_cells = of_n_size_cells(pp); + + prop->name = "reg"; + prop->length = (a_cells + s_cells) * sizeof(__be32); + prop->value = kmemdup(reg, (a_cells + s_cells) * sizeof(__be32), + GFP_KERNEL); + new_reg = prop->value; + memset(new_reg, 0, a_cells * sizeof(__be32)); + new_reg[a_cells - 1] = cpu_to_be32(part->offset); + if (a_cells > 1) + new_reg[0] = cpu_to_be32(part->offset >> 32); + of_update_property(pp, prop); + + return 0; +} diff --git a/drivers/mtd/parsers/ofpart_airoha.h b/drivers/mtd/parsers/ofpart_airoha.h new file mode 100644 index 000000000000..3e8a8456c13a --- /dev/null +++ b/drivers/mtd/parsers/ofpart_airoha.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __OFPART_AIROHA_H +#define __OFPART_AIROHA_H + +#ifdef CONFIG_MTD_OF_PARTS_AIROHA +int airoha_partitions_post_parse(struct mtd_info *mtd, + struct mtd_partition *parts, + int nr_parts); +#else +static inline int airoha_partitions_post_parse(struct mtd_info *mtd, + struct mtd_partition *parts, + int nr_parts) +{ + return -EOPNOTSUPP; +} +#endif + +#endif diff --git a/drivers/mtd/parsers/ofpart_core.c b/drivers/mtd/parsers/ofpart_core.c index e7b8e9d0a910..9e078636d158 100644 --- a/drivers/mtd/parsers/ofpart_core.c +++ b/drivers/mtd/parsers/ofpart_core.c @@ -16,6 +16,7 @@ #include #include +#include "ofpart_airoha.h" #include "ofpart_bcm4908.h" #include "ofpart_linksys_ns.h" @@ -23,6 +24,10 @@ struct fixed_partitions_quirks { int (*post_parse)(struct mtd_info *mtd, struct mtd_partition *parts, int nr_parts); }; +static struct fixed_partitions_quirks airoha_partitions_quirks = { + .post_parse = airoha_partitions_post_parse, +}; + static struct fixed_partitions_quirks bcm4908_partitions_quirks = { .post_parse = bcm4908_partitions_post_parse, }; @@ -192,6 +197,7 @@ static const struct of_device_id parse_ofpart_match_table[] = { /* Generic */ { .compatible = "fixed-partitions" }, /* Customized */ + { .compatible = "airoha,fixed-partitions", .data = &airoha_partitions_quirks, }, { .compatible = "brcm,bcm4908-partitions", .data = &bcm4908_partitions_quirks, }, { .compatible = "linksys,ns-partitions", .data = &linksys_ns_partitions_quirks, }, {},