mirror of https://github.com/hak5/openwrt.git
33 lines
1.0 KiB
Diff
33 lines
1.0 KiB
Diff
* rename the offset definition to avoid abiguity with the standard ATA
|
|
IO address
|
|
* read and write four bytes at once like the original driver does
|
|
* use writesl() and readsl() which implicitly iterate over the data
|
|
|
|
This patch assumes buflen to be a multiple of four, which is true for
|
|
ATA devices. ATAPI support is not known, though unlikely, as the
|
|
original driver always transfers 512 Bytes at once.
|
|
|
|
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
|
|
Acked-by: Sergei Shtyltov <sshtylyov@ru.mvista.com>
|
|
---
|
|
--- a/drivers/ata/pata_rb532_cf.c
|
|
+++ b/drivers/ata/pata_rb532_cf.c
|
|
@@ -82,13 +82,10 @@ static unsigned int rb532_pata_data_xfer
|
|
void __iomem *ioaddr = ap->ioaddr.data_addr;
|
|
int retlen = buflen;
|
|
|
|
- if (write_data) {
|
|
- for (; buflen > 0; buflen--, buf++)
|
|
- writeb(*buf, ioaddr);
|
|
- } else {
|
|
- for (; buflen > 0; buflen--, buf++)
|
|
- *buf = readb(ioaddr);
|
|
- }
|
|
+ if (write_data)
|
|
+ writesl(ioaddr, buf, buflen / sizeof(u32));
|
|
+ else
|
|
+ readsl(ioaddr, buf, buflen / sizeof(u32));
|
|
|
|
rb532_pata_finish_io(adev->link->ap);
|
|
return retlen;
|