Patchwork [052/104] ts72xx: use MTDPART_OFS_RETAIN for mtd partitioning

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Submitter Dmitry Eremin-Solenikov
Date June 2, 2011, 2:51 p.m.
Message ID <1307026293-8535-18-git-send-email-dbaryshkov@gmail.com>
Download mbox | patch
Permalink /patch/98410/
State New
Headers show

Comments

Dmitry Eremin-Solenikov - June 2, 2011, 2:51 p.m.
Instead of specifying a callback for dynamic partitioning, use
MTDPART_OFS_RETAIN for reserving a place near the end of flash for
RedBoot.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <ryan@bluewatersys.com>
---
 arch/arm/mach-ep93xx/ts72xx.c |   22 ++++------------------
 1 files changed, 4 insertions(+), 18 deletions(-)

Patch

diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index c2d2cf4..68e2849 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -116,8 +116,8 @@  static struct mtd_partition ts72xx_nand_parts[] = {
 		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
 	}, {
 		.name		= "Linux",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= 0,			/* filled in later */
+		.offset		= MTDPART_OFS_RETAIN,
+		.size		= TS72XX_REDBOOT_PART_SIZE, /* leave so much for last partition */
 	}, {
 		.name		= "RedBoot",
 		.offset		= MTDPART_OFS_APPEND,
@@ -126,28 +126,14 @@  static struct mtd_partition ts72xx_nand_parts[] = {
 	},
 };
 
-static void ts72xx_nand_set_parts(uint64_t size,
-				  struct platform_nand_chip *chip)
-{
-	/* Factory TS-72xx boards only come with 32MiB or 128MiB NAND options */
-	if (size == SZ_32M || size == SZ_128M) {
-		/* Set the "Linux" partition size */
-		ts72xx_nand_parts[1].size = size - TS72XX_REDBOOT_PART_SIZE;
-
-		chip->partitions = ts72xx_nand_parts;
-		chip->nr_partitions = ARRAY_SIZE(ts72xx_nand_parts);
-	} else {
-		pr_warning("Unknown nand disk size:%lluMiB\n", size >> 20);
-	}
-}
-
 static struct platform_nand_data ts72xx_nand_data = {
 	.chip = {
 		.nr_chips	= 1,
 		.chip_offset	= 0,
 		.chip_delay	= 15,
 		.part_probe_types = ts72xx_nand_part_probes,
-		.set_parts	= ts72xx_nand_set_parts,
+		.partitions	= ts72xx_nand_parts,
+		.nr_partitions	= ARRAY_SIZE(ts72xx_nand_parts),
 	},
 	.ctrl = {
 		.cmd_ctrl	= ts72xx_nand_hwcontrol,