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authorSascha Silbe <t-uboot@infra-silbe.de>2013-06-14 13:07:25 +0200
committerTom Rini <trini@ti.com>2013-06-26 10:26:06 -0400
commitff8fef566601ba27767e885386cb2074c4f09886 (patch)
tree73a5ae4d090fdb0df6749d954daa2fdc0f937fd9 /include
parenteeaef5e4305497537bd47308724de39c7d6cbf19 (diff)
Fix block device accesses beyond 2TiB
With CONFIG_SYS_64BIT_LBA, lbaint_t gets defined as a 64-bit type, which is required to represent block numbers for storage devices that exceed 2TiB (the block size usually is 512B), e.g. recent hard drives. For some obscure reason, the current U-Boot code uses lbaint_t for the number of blocks to read (a rather optimistic estimation of how RAM sizes will evolve), but not for the starting address. Trying to access blocks beyond the 2TiB boundary will simply wrap around and read a block within the 0..2TiB range. We now use lbaint_t for block start addresses, too. This required changes to all block drivers as the signature of block_read(), block_write() and block_erase() in block_dev_desc_t changed. Signed-off-by: Sascha Silbe <t-uboot@infra-silbe.de>
Diffstat (limited to 'include')
-rw-r--r--include/ide.h5
-rw-r--r--include/part.h6
2 files changed, 6 insertions, 5 deletions
diff --git a/include/ide.h b/include/ide.h
index afea85cdc2c..f691a74ab46 100644
--- a/include/ide.h
+++ b/include/ide.h
@@ -54,8 +54,9 @@ typedef ulong lbaint_t;
*/
void ide_init(void);
-ulong ide_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer);
-ulong ide_write(int device, ulong blknr, lbaint_t blkcnt, const void *buffer);
+ulong ide_read(int device, lbaint_t blknr, lbaint_t blkcnt, void *buffer);
+ulong ide_write(int device, lbaint_t blknr, lbaint_t blkcnt,
+ const void *buffer);
#ifdef CONFIG_IDE_PREINIT
int ide_preinit(void);
diff --git a/include/part.h b/include/part.h
index f7c7cc59fca..35c1c5b5f58 100644
--- a/include/part.h
+++ b/include/part.h
@@ -43,15 +43,15 @@ typedef struct block_dev_desc {
char product[20+1]; /* IDE Serial no, SCSI product */
char revision[8+1]; /* firmware revision */
unsigned long (*block_read)(int dev,
- unsigned long start,
+ lbaint_t start,
lbaint_t blkcnt,
void *buffer);
unsigned long (*block_write)(int dev,
- unsigned long start,
+ lbaint_t start,
lbaint_t blkcnt,
const void *buffer);
unsigned long (*block_erase)(int dev,
- unsigned long start,
+ lbaint_t start,
lbaint_t blkcnt);
void *priv; /* driver private struct pointer */
}block_dev_desc_t;