ts72xx: use MTDPART_OFS_RETAIN for mtd partitioning

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>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 5 insertions, 18 deletions

diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index c2d2cf40ead9..dea42e262151 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -116,8 +116,9 @@ 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 +127,14 @@ 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,