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61 lines
1.9 KiB
Diff
61 lines
1.9 KiB
Diff
From 1ef4af1f96284576aa9b7f4490c791350c99fffd Mon Sep 17 00:00:00 2001
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From: mokopatches <mokopatches@openmoko.org>
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Date: Wed, 16 Jul 2008 14:44:10 +0100
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Subject: [PATCH] gta01-no_nand_partitions.patch
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[PATCH] support mtd NAND commandline partitions for S3C2410
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This patch adds support for the mtd NAND core standard method of passing
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partition table information from the bootloader into the kernel by using
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the kernel commandline.
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The board specific code can still manually override and provide a fixed
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partition table, so this patch will behave backwards compatible.
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Signed-off-by: Harald Welte <laforge@openmoko.org>
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Acked-byt: Ben Dooks <ben-linux@fluff.org>
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---
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drivers/mtd/nand/s3c2410.c | 18 ++++++++++++++++--
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1 files changed, 16 insertions(+), 2 deletions(-)
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diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
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index b34a460..101b6b5 100644
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--- a/drivers/mtd/nand/s3c2410.c
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+++ b/drivers/mtd/nand/s3c2410.c
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@@ -566,17 +566,31 @@ static int s3c2410_nand_remove(struct platform_device *pdev)
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}
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#ifdef CONFIG_MTD_PARTITIONS
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+const char *part_probes[] = { "cmdlinepart", NULL };
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static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
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struct s3c2410_nand_mtd *mtd,
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struct s3c2410_nand_set *set)
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{
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+ struct mtd_partition *part_info;
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+ int nr_part = 0;
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+
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if (set == NULL)
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return add_mtd_device(&mtd->mtd);
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- if (set->nr_partitions > 0 && set->partitions != NULL) {
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- return add_mtd_partitions(&mtd->mtd, set->partitions, set->nr_partitions);
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+ if (set->nr_partitions == 0) {
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+ mtd->mtd.name = set->name;
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+ nr_part = parse_mtd_partitions(&mtd->mtd, part_probes,
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+ &part_info, 0);
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+ } else {
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+ if (set->nr_partitions > 0 && set->partitions != NULL) {
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+ nr_part = set->nr_partitions;
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+ part_info = set->partitions;
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+ }
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}
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+ if (nr_part > 0 && part_info)
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+ return add_mtd_partitions(&mtd->mtd, part_info, nr_part);
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+
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return add_mtd_device(&mtd->mtd);
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}
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#else
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--
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1.5.6.3
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