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authorBecky Bruce <beckyb@kernel.crashing.org>2009-02-02 16:34:51 -0600
committerStefan Roese <sr@denx.de>2009-02-05 11:20:05 +0100
commit09ce9921a7d8b1ce764656b14b42217bbf4faa38 (patch)
treec8d83aa2012342e0a790a046bc6a8fa3bba2c5a5 /include/flash.h
parent9d8811c5bd2b7dd6307742cf22fbdb7953b6f816 (diff)
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flash/cfi_flash: Use virtual sector start address, not phys
include/flash.h was commented to say that the address in flash_info->start was a physical address. However, from u-boot's point of view, and looking at most flash code, it makes more sense for this to be a virtual address. So I corrected the comment to indicate that this was a virtual address. The only flash driver that was actually treating the address as physical was the mtd/cfi_flash driver. However, this code was using it inconsistently as it actually directly dereferenced the "start" element, while it used map_physmem to get a virtual address in other places. I changed this driver so that the code which initializes the info->start field calls map_physmem to get a virtual address, eliminating the need for further map_physmem calls. The code is now consistent. The *only* place a physical address should be used is when defining the flash banks list that is used to initialize the flash_info struct, usually found in the board config file. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'include/flash.h')
-rw-r--r--include/flash.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/flash.h b/include/flash.h
index 6e2981c..02c6a04 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -33,7 +33,7 @@ typedef struct {
ulong size; /* total bank size in bytes */
ushort sector_count; /* number of erase units */
ulong flash_id; /* combined device & manufacturer code */
- ulong start[CONFIG_SYS_MAX_FLASH_SECT]; /* physical sector start addresses */
+ ulong start[CONFIG_SYS_MAX_FLASH_SECT]; /* virtual sector start address */
uchar protect[CONFIG_SYS_MAX_FLASH_SECT]; /* sector protection status */
#ifdef CONFIG_SYS_FLASH_CFI
uchar portwidth; /* the width of the port */