Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Andrea Adami <andrea.adami@gmail.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     Robert Jarzmik <robert.jarzmik@free.fr>,
        Haojian Zhuang <haojian.zhuang@gmail.com>,
        Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        linux-kernel@vger.kernel.org
Subject: [PATCH 2/4] ARM: pxa/tosa: Remove hardcoded partitioning, use sharpslpart parser
Date:   Tue, 21 Nov 2017 22:43:49 +0100
Message-Id: <1511300631-1343-2-git-send-email-andrea.adami@gmail.com>
In-Reply-To: <1511300631-1343-1-git-send-email-andrea.adami@gmail.com>
References: <1511300631-1343-1-git-send-email-andrea.adami@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

With the introduction of sharpslpart partition parser we can now read the
offsets from NAND: we specify the list of the parsers as platform data, with
cmdlinepart and ofpart parsers first allowing to override the part. table
written in NAND. This is done here in the board file.

Emulators like qemu will need to pass the mtdparts in the cmdline.

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
---
 arch/arm/mach-pxa/tosa.c | 28 ++++++++--------------------
 1 file changed, 8 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 13de660..b90560b 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -673,24 +673,6 @@ static int tosa_tc6393xb_suspend(struct platform_device *dev)
 	return 0;
 }
 
-static struct mtd_partition tosa_nand_partition[] = {
-	{
-		.name	= "smf",
-		.offset	= 0,
-		.size	= 7 * 1024 * 1024,
-	},
-	{
-		.name	= "root",
-		.offset	= MTDPART_OFS_APPEND,
-		.size	= 28 * 1024 * 1024,
-	},
-	{
-		.name	= "home",
-		.offset	= MTDPART_OFS_APPEND,
-		.size	= MTDPART_SIZ_FULL,
-	},
-};
-
 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 
 static struct nand_bbt_descr tosa_tc6393xb_nand_bbt = {
@@ -700,10 +682,16 @@ static struct nand_bbt_descr tosa_tc6393xb_nand_bbt = {
 	.pattern	= scan_ff_pattern
 };
 
+static const char * const probes[] = {
+	"cmdlinepart",
+	"ofpart",
+	"sharpslpart",
+	NULL,
+};
+
 static struct tmio_nand_data tosa_tc6393xb_nand_config = {
-	.num_partitions	= ARRAY_SIZE(tosa_nand_partition),
-	.partition	= tosa_nand_partition,
 	.badblock_pattern = &tosa_tc6393xb_nand_bbt,
+	.part_parsers = probes,
 };
 
 static int tosa_tc6393xb_setup(struct platform_device *dev)
-- 
2.7.4


From 1584732426218433165@xxx Wed Nov 22 02:43:33 +0000 2017
X-GM-THRID: 1584732426218433165
X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread