Skip to content
Snippets Groups Projects
Commit 8441a622 authored by Oskari Lemmela's avatar Oskari Lemmela Committed by Koen Vandeputte
Browse files

mikrotik: enable variable size erase 


Add support for variable size erase blocks.
Enable it to all targets which has mikrotik targets.

Signed-off-by: default avatarOskari Lemmela <oskari@lemmela.net>
parent 6eb196ed
No related branches found
No related tags found
No related merge requests found
Hide whitespace changes
Inline Side-by-side
target/linux/ath79/mikrotik/config-default
+ 1
− 0
View file @ 8441a622
......@@ -19,6 +19,7 @@ CONFIG_MTD_NAND_RB91X=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_ROUTERBOOT_PARTS=y
CONFIG_MTD_SPI_NAND=y
CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y
CONFIG_MTD_SPLIT_MINOR_FW=y
CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_BLOCK=y
......
target/linux/generic/config-5.10
+ 1
− 0
View file @ 8441a622
......@@ -3641,6 +3641,7 @@ CONFIG_MTD_ROOTFS_ROOT_DEV=y
# CONFIG_MTD_SPI_NOR is not set
# CONFIG_MTD_SPI_NOR_USE_4K_SECTORS is not set
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS_LIMIT=4096
# CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE is not set
CONFIG_MTD_SPLIT=y
# CONFIG_MTD_SPLIT_BCM63XX_FW is not set
# CONFIG_MTD_SPLIT_BCM_WFI_FW is not set
......
target/linux/generic/pending-5.10/402-mtd-spi-nor-write-support-for-minor-aligned-partitions.patch 0 → 100644
+ 397
− 0
View file @ 8441a622
From patchwork Tue Jun 8 04:07:19 2021
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: John Thomson <git@johnthomson.fastmail.com.au>
X-Patchwork-Id: 1489105
X-Patchwork-Delegate: tudor.ambarus@gmail.com
Return-Path:
<linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>
X-Original-To: incoming@patchwork.ozlabs.org
Delivered-To: patchwork-incoming@bilbo.ozlabs.org
Authentication-Results: ozlabs.org;
spf=none (no SPF record) smtp.mailfrom=lists.infradead.org
(client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org;
envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;
receiver=<UNKNOWN>)
Authentication-Results: ozlabs.org;
dkim=pass (2048-bit key;
secure) header.d=lists.infradead.org header.i=@lists.infradead.org
header.a=rsa-sha256 header.s=bombadil.20210309 header.b=EMabhVoR;
dkim=fail reason="signature verification failed" (2048-bit key;
unprotected) header.d=fastmail.com.au header.i=@fastmail.com.au
header.a=rsa-sha256 header.s=fm3 header.b=dLzuZ6dB;
dkim=fail reason="signature verification failed" (2048-bit key;
unprotected) header.d=messagingengine.com header.i=@messagingengine.com
header.a=rsa-sha256 header.s=fm3 header.b=nSRGsW+C;
dkim-atps=neutral
Received: from bombadil.infradead.org (bombadil.infradead.org
[IPv6:2607:7c80:54:e::133])
(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)
(No client certificate requested)
by ozlabs.org (Postfix) with ESMTPS id 4FzcFN1j1nz9sW8
for <incoming@patchwork.ozlabs.org>; Tue, 8 Jun 2021 14:09:28 +1000 (AEST)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=lists.infradead.org; s=bombadil.20210309; h=Sender:
Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:
List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc
:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:
Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:
List-Owner; bh=6mUWQd71FwsINycGYY1qOhKz+ecWJVNtwDkTebG3XkA=; b=EMabhVoRE3ad89
o3L2AgyKrs+blSofUC3hoSsQe7gi3m4si8S9HW8Z+8SsS5TufUsvGwDl80qSYGlQOytQF+1yRUWvE
6FJ/+bqv+TwjqZFibgJ6+9OVsQN9dZ/no1R0bBXIpmrf8ORUmv58QK4ZQquaFKbyXKpFeWOC2MSv4
H2MAhyhTU8a3gtooH6G8+KvsJEfVgh6C+aDbwxyh2UY3chHKuw1kvL6AktbfUE2xl4zxi3x3kc70B
Wi3LiJBFokxVdgnROXxTU5tI0XboWYkQV64gLuQNV4XKClcuhVpzloDK8Iok6NTd7b32a7TdEFlCS
lGKsEKmxtUlW2FpfoduA==;
Received: from localhost ([::1] helo=bombadil.infradead.org)
by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux))
id 1lqT1r-006OAW-DX; Tue, 08 Jun 2021 04:07:51 +0000
Received: from new1-smtp.messagingengine.com ([66.111.4.221])
by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux))
id 1lqT1l-006O9b-Fq
for linux-mtd@lists.infradead.org; Tue, 08 Jun 2021 04:07:50 +0000
Received: from compute2.internal (compute2.nyi.internal [10.202.2.42])
by mailnew.nyi.internal (Postfix) with ESMTP id 4456B580622;
Tue, 8 Jun 2021 00:07:42 -0400 (EDT)
Received: from mailfrontend2 ([10.202.2.163])
by compute2.internal (MEProxy); Tue, 08 Jun 2021 00:07:42 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastmail.com.au;
h=from:to:cc:subject:date:message-id:mime-version
:content-transfer-encoding; s=fm3; bh=ZXRH+YluM1mHCS1EWUiCY/Sg8O
LccfHe1oW5iAay6y8=; b=dLzuZ6dBYf7ZA8tWLOBFZYLi7ERsGe/4vnMXG+ovvb
dNBO0+SaFGwoqYSFrfq/TeyHfKyvxrA7+LCdopIuT4abpLHxtRwtRiafQcDYCPat
qJIqOZO+wCZC5S9Jc1OP7+t1FviGpgevqIMotci37P+RWc5u3AweMzFljZk90E8C
uorV6rXagD+OssJQzllRnAIK88+rOAC9ZyXv2gWxy4d1HSCwSWgzx2vnV9CNp918
YC/3tiHas9krbrPIaAsdBROr7Bvoe/ShRRzruKRuvZVgg5NN90vX+/5ZjI8u04GM
p2bWCbC62CP6wlcgDaz+c/Sgr5ITd2GPENJsHfqmLRBA==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=
messagingengine.com; h=cc:content-transfer-encoding:date:from
:message-id:mime-version:subject:to:x-me-proxy:x-me-proxy
:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=ZXRH+YluM1mHCS1EW
UiCY/Sg8OLccfHe1oW5iAay6y8=; b=nSRGsW+CQ2Zx1RVpIUu8W/VD/k5P+32BW
5k2ltd+UhI3dfldBPzHrYiOP/IJqGkNW+V+rHASacW/vFygnaZoxNjRYKnOsu+26
wb2yK3jpl6lsNTg3N1Z4XJrYY2lf9H29DMFbhC67l0PTc050rcZk4XsKTLAlv14Q
VA4WREYSaX/4IN4O+ES4TMq0a/3gKZh6nvbbJXbsXfK0WlSHTGZtZmW3fyrqvbXa
t+R7L8vvqWvwls0pV+Sn8LeQqb7+A69w0UOnuznjkcA3sCc2YehcHbxcUEnMH+9N
bxOjmIDeg9/4X/829tUWUJiLhE5SFmQZ1P6oFtmbWoLrDz0ZJIVBw==
X-ME-Sender: <xms:C-2-YD2uka4HsA6gcdsV2Ia7vebY4Yjp9E8q7KBMb54jnAzGL7-67Q>
<xme:C-2-YCEaxASy5VlcrvNO_jLFpMDGkFCRsuVNuZGEQsiRZygk8jPHWq7unPjeT6uYS
2pUP6PrTQ2rggjEIg>
X-ME-Received:
<xmr:C-2-YD4exeK49N_YZWWf2BWDhVyCbCY3wwvjTyDOFxeugx7Jg08pzMUToo9oJjrBpcVTaA3kbfk>
X-ME-Proxy-Cause:
gggruggvucftvghtrhhoucdtuddrgeduledrfedtkedgjeduucetufdoteggodetrfdotf
fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen
uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne
cujfgurhephffvufffkffoggfgsedtkeertdertddtnecuhfhrohhmpeflohhhnhcuvfhh
ohhmshhonhcuoehgihhtsehjohhhnhhthhhomhhsohhnrdhfrghsthhmrghilhdrtghomh
drrghuqeenucggtffrrghtthgvrhhnpefffeeihfdukedtuedufeetieeuudfhhefhkefh
tefgtdeuffekffelleetveduieenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmh
epmhgrihhlfhhrohhmpehgihhtsehjohhhnhhthhhomhhsohhnrdhfrghsthhmrghilhdr
tghomhdrrghu
X-ME-Proxy: <xmx:C-2-YI0AJZGjcB3wIbI9BoC9X8VNl4i9A7cQnBkvwZ25czWJlkKCLw>
<xmx:C-2-YGGufw99T-O81-FeiSyEruv6_Pr0IHFhspQdxjv5k1VFTZ0lzQ>
<xmx:C-2-YJ8BW7DhSDSCEAPSJWrwh_hHP79qreTZtWh_kOUwSh1c0MMlAg>
<xmx:Du2-YJBeX2Fg9oFZVXGwEJ1ZrZnXHiAqNON8tbpzquYgcm2o_LM48g>
Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue,
8 Jun 2021 00:07:35 -0400 (EDT)
From: John Thomson <git@johnthomson.fastmail.com.au>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>,
Tudor Ambarus <tudor.ambarus@microchip.com>,
Michael Walle <michael@walle.cc>, Pratyush Yadav <p.yadav@ti.com>,
linux-mtd@lists.infradead.org
Cc: linux-kernel@vger.kernel.org,
John Thomson <git@johnthomson.fastmail.com.au>,
kernel test robot <lkp@intel.com>, Dan Carpenter <dan.carpenter@oracle.com>
Subject: [PATCH] mtd: spi-nor: write support for minor aligned partitions
Date: Tue, 8 Jun 2021 14:07:19 +1000
Message-Id: <20210608040719.14431-1-git@johnthomson.fastmail.com.au>
X-Mailer: git-send-email 2.31.1
MIME-Version: 1.0
X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3
X-CRM114-CacheID: sfid-20210607_210745_712053_67A7D864
X-CRM114-Status: GOOD ( 26.99 )
X-Spam-Score: -0.8 (/)
X-Spam-Report: Spam detection software,
running on the system "bombadil.infradead.org",
has NOT identified this incoming email as spam. The original
message has been attached to this so you can view it or label
similar future email. If you have any questions, see
the administrator of that system for details.
Content preview: Do not prevent writing to mtd partitions where a partition
boundary sits on a minor erasesize boundary. This addresses a FIXME that
has been present since the start of the linux git history: /* Doesn' [...]
Content analysis details: (-0.8 points, 5.0 required)
pts rule name description
---- ----------------------
--------------------------------------------------
-0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/,
low trust [66.111.4.221 listed in list.dnswl.org]
-0.0 SPF_PASS SPF: sender matches SPF record
-0.0 SPF_HELO_PASS SPF: HELO matches SPF record
0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)
[66.111.4.221 listed in wl.mailspike.net]
-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
0.1 DKIM_SIGNED Message has a DKIM or DK signature,
not necessarily
valid
-0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from
envelope-from domain
0.0 RCVD_IN_MSPIKE_WL Mailspike good senders
X-BeenThere: linux-mtd@lists.infradead.org
X-Mailman-Version: 2.1.34
Precedence: list
List-Id: Linux MTD discussion mailing list <linux-mtd.lists.infradead.org>
List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-mtd>,
<mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-mtd/>
List-Post: <mailto:linux-mtd@lists.infradead.org>
List-Help: <mailto:linux-mtd-request@lists.infradead.org?subject=help>
List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>,
<mailto:linux-mtd-request@lists.infradead.org?subject=subscribe>
Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org>
Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
Do not prevent writing to mtd partitions where a partition boundary sits
on a minor erasesize boundary.
This addresses a FIXME that has been present since the start of the
linux git history:
/* Doesn't start on a boundary of major erase size */
/* FIXME: Let it be writable if it is on a boundary of
* _minor_ erase size though */
Allow a uniform erase region spi-nor device to be configured
to use the non-uniform erase regions code path for an erase with:
CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y
On supporting hardware (SECT_4K: majority of current SPI-NOR device)
provide the facility for an erase to use the least number
of SPI-NOR operations, as well as access to 4K erase without
requiring CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
Introduce erasesize_minor to the mtd struct,
the smallest erasesize supported by the device
On existing devices, this is useful where write support is wanted
for data on a 4K partition, such as some u-boot-env partitions,
or RouterBoot soft_config, while still netting the performance
benefits of using 64K sectors
Performance:
time mtd erase firmware
OpenWrt 5.10 ramips MT7621 w25q128jv 0xfc0000 partition length
Without this patch
MTD_SPI_NOR_USE_4K_SECTORS=y |n
real 2m 11.66s |0m 50.86s
user 0m 0.00s |0m 0.00s
sys 1m 56.20s |0m 50.80s
With this patch
MTD_SPI_NOR_USE_VARIABLE_ERASE=n|y |4K_SECTORS=y
real 0m 51.68s |0m 50.85s |2m 12.89s
user 0m 0.00s |0m 0.00s |0m 0.01s
sys 0m 46.94s |0m 50.38s |2m 12.46s
Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
---
Have not tested on variable erase regions device.
checkpatch does not like the printk(KERN_WARNING
these should be changed separately beforehand?
Changes RFC -> v1:
Fix uninitialized variable smatch warning
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/mtd/mtdpart.c | 52 ++++++++++++++++++++++++++++---------
drivers/mtd/spi-nor/Kconfig | 10 +++++++
drivers/mtd/spi-nor/core.c | 10 +++++--
include/linux/mtd/mtd.h | 2 ++
4 files changed, 60 insertions(+), 14 deletions(-)
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 665fd9020b76..fe7626b5020e 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -38,10 +38,11 @@ static struct mtd_info *allocate_partition(struct mtd_info *parent,
struct mtd_info *master = mtd_get_master(parent);
int wr_alignment = (parent->flags & MTD_NO_ERASE) ?
master->writesize : master->erasesize;
+ int wr_alignment_minor = 0;
u64 parent_size = mtd_is_partition(parent) ?
parent->part.size : parent->size;
struct mtd_info *child;
- u32 remainder;
+ u32 remainder, remainder_minor;
char *name;
u64 tmp;
@@ -143,6 +144,7 @@ static struct mtd_info *allocate_partition(struct mtd_info *parent,
int i, max = parent->numeraseregions;
u64 end = child->part.offset + child->part.size;
struct mtd_erase_region_info *regions = parent->eraseregions;
+ uint32_t erasesize_minor = child->erasesize;
/* Find the first erase regions which is part of this
* partition. */
@@ -153,15 +155,24 @@ static struct mtd_info *allocate_partition(struct mtd_info *parent,
if (i > 0)
i--;
- /* Pick biggest erasesize */
for (; i < max && regions[i].offset < end; i++) {
+ /* Pick biggest erasesize */
if (child->erasesize < regions[i].erasesize)
child->erasesize = regions[i].erasesize;
+ /* Pick smallest non-zero erasesize */
+ if ((erasesize_minor > regions[i].erasesize) && (regions[i].erasesize > 0))
+ erasesize_minor = regions[i].erasesize;
}
+
+ if (erasesize_minor < child->erasesize)
+ child->erasesize_minor = erasesize_minor;
+
BUG_ON(child->erasesize == 0);
} else {
/* Single erase size */
child->erasesize = master->erasesize;
+ if (master->erasesize_minor)
+ child->erasesize_minor = master->erasesize_minor;
}
/*
@@ -169,26 +180,43 @@ static struct mtd_info *allocate_partition(struct mtd_info *parent,
* exposes several regions with different erasesize. Adjust
* wr_alignment accordingly.
*/
- if (!(child->flags & MTD_NO_ERASE))
+ if (!(child->flags & MTD_NO_ERASE)) {
wr_alignment = child->erasesize;
+ if (IS_ENABLED(CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE) && child->erasesize_minor)
+ wr_alignment_minor = child->erasesize_minor;
+ }
tmp = mtd_get_master_ofs(child, 0);
remainder = do_div(tmp, wr_alignment);
if ((child->flags & MTD_WRITEABLE) && remainder) {
- /* Doesn't start on a boundary of major erase size */
- /* FIXME: Let it be writable if it is on a boundary of
- * _minor_ erase size though */
- child->flags &= ~MTD_WRITEABLE;
- printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase/write block boundary -- force read-only\n",
- part->name);
+ if (wr_alignment_minor) {
+ tmp = mtd_get_master_ofs(child, 0);
+ remainder_minor = do_div(tmp, wr_alignment_minor);
+ if (remainder_minor == 0)
+ child->erasesize = child->erasesize_minor;
+ }
+
+ if ((!wr_alignment_minor) || (wr_alignment_minor && remainder_minor != 0)) {
+ child->flags &= ~MTD_WRITEABLE;
+ printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase/write block boundary -- force read-only\n",
+ part->name);
+ }
}
tmp = mtd_get_master_ofs(child, 0) + child->part.size;
remainder = do_div(tmp, wr_alignment);
if ((child->flags & MTD_WRITEABLE) && remainder) {
- child->flags &= ~MTD_WRITEABLE;
- printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase/write block -- force read-only\n",
- part->name);
+ if (wr_alignment_minor) {
+ tmp = mtd_get_master_ofs(child, 0) + child->part.size;
+ remainder_minor = do_div(tmp, wr_alignment_minor);
+ if (remainder_minor == 0)
+ child->erasesize = child->erasesize_minor;
+ }
+ if ((!wr_alignment_minor) || (wr_alignment_minor && remainder_minor != 0)) {
+ child->flags &= ~MTD_WRITEABLE;
+ printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase/write block -- force read-only\n",
+ part->name);
+ }
}
child->size = child->part.size;
diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
index 24cd25de2b8b..09df9f1a8127 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -10,6 +10,16 @@ menuconfig MTD_SPI_NOR
if MTD_SPI_NOR
+config MTD_SPI_NOR_USE_VARIABLE_ERASE
+ bool "Disable uniform_erase to allow use of all hardware supported erasesizes"
+ depends on !MTD_SPI_NOR_USE_4K_SECTORS
+ default n
+ help
+ Allow mixed use of all hardware supported erasesizes,
+ by forcing spi_nor to use the multiple eraseregions code path.
+ For example: A 68K erase will use one 64K erase, and one 4K erase
+ on supporting hardware.
+
config MTD_SPI_NOR_USE_4K_SECTORS
bool "Use small 4096 B erase sectors"
default y
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index bd2c7717eb10..43d9b54e7edd 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -1262,6 +1262,8 @@ static u8 spi_nor_convert_3to4_erase(u8 opcode)
static bool spi_nor_has_uniform_erase(const struct spi_nor *nor)
{
+ if (IS_ENABLED(CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE))
+ return false;
return !!nor->params->erase_map.uniform_erase_type;
}
@@ -2381,6 +2383,7 @@ static int spi_nor_select_erase(struct spi_nor *nor)
{
struct spi_nor_erase_map *map = &nor->params->erase_map;
const struct spi_nor_erase_type *erase = NULL;
+ const struct spi_nor_erase_type *erase_minor = NULL;
struct mtd_info *mtd = &nor->mtd;
u32 wanted_size = nor->info->sector_size;
int i;
@@ -2413,8 +2416,9 @@ static int spi_nor_select_erase(struct spi_nor *nor)
*/
for (i = SNOR_ERASE_TYPE_MAX - 1; i >= 0; i--) {
if (map->erase_type[i].size) {
- erase = &map->erase_type[i];
- break;
+ if (!erase)
+ erase = &map->erase_type[i];
+ erase_minor = &map->erase_type[i];
}
}
@@ -2422,6 +2426,8 @@ static int spi_nor_select_erase(struct spi_nor *nor)
return -EINVAL;
mtd->erasesize = erase->size;
+ if (erase_minor && erase_minor->size < erase->size)
+ mtd->erasesize_minor = erase_minor->size;
return 0;
}
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index a89955f3cbc8..33eafa27da50 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -243,6 +243,8 @@ struct mtd_info {
* information below if they desire
*/
uint32_t erasesize;
+ /* "Minor" (smallest) erase size supported by the whole device */
+ uint32_t erasesize_minor;
/* Minimal writable flash unit size. In case of NOR flash it is 1 (even
* though individual bits can be cleared), in case of NAND flash it is
* one NAND page (or half, or one-fourths of it), in case of ECC-ed NOR
target/linux/ipq40xx/mikrotik/config-default
+ 1
− 0
View file @ 8441a622
......@@ -2,3 +2,4 @@ CONFIG_MIKROTIK=y
CONFIG_MIKROTIK_RB_SYSFS=y
CONFIG_MTD_ROUTERBOOT_PARTS=y
CONFIG_MTD_SPLIT_MINOR_FW=y
CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y
target/linux/ramips/mt7621/config-5.10
+ 1
− 0
View file @ 8441a622
......@@ -158,6 +158,7 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_ROUTERBOOT_PARTS=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y
CONFIG_MTD_SPLIT_FIT_FW=y
CONFIG_MTD_SPLIT_MINOR_FW=y
CONFIG_MTD_SPLIT_SEAMA_FW=y
......
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment

Hosted with love by Chaotikum e.V. Support us if you can