48a4b3a0cd
This patch disables the execute-in-place (XIP) support for flash on lantiq. This has to be disabled since the bus which flash is connected to does not support unaligned accesses. Resolves data bus errors on Lantiq routers with Intel command set flash. Signed-off-by: Matti Laakso <malaakso@elisanet.fi> SVN-Revision: 35992
17 lines
757 B
Diff
17 lines
757 B
Diff
Index: linux-3.7.10/drivers/mtd/maps/lantiq-flash.c
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===================================================================
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--- linux-3.7.10.orig/drivers/mtd/maps/lantiq-flash.c 2013-02-27 18:22:04.000000000 +0100
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+++ linux-3.7.10/drivers/mtd/maps/lantiq-flash.c 2013-03-12 10:10:22.954382685 +0100
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@@ -134,7 +134,11 @@
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}
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ltq_mtd->map = kzalloc(sizeof(struct map_info), GFP_KERNEL);
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- ltq_mtd->map->phys = ltq_mtd->res->start;
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+ if (of_find_property(pdev->dev.of_node, "lantiq,noxip", NULL))
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+ ltq_mtd->map->phys = NO_XIP;
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+ else
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+ ltq_mtd->map->phys = ltq_mtd->res->start;
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+ ltq_mtd->res->start;
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ltq_mtd->map->size = resource_size(ltq_mtd->res);
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ltq_mtd->map->virt = devm_request_and_ioremap(&pdev->dev, ltq_mtd->res);
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if (!ltq_mtd->map->virt) {
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