mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-09 22:44:04 +02:00
f7d2258cfb
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13224 3c298f89-4303-0410-b956-a3cf2f4a3e73
69 lines
2.1 KiB
Diff
69 lines
2.1 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>
|
|
---
|
|
drivers/ata/pata_rb532_cf.c | 20 +++++++++-----------
|
|
1 files changed, 9 insertions(+), 11 deletions(-)
|
|
|
|
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
|
|
index 7b11f40..b919012 100644
|
|
--- a/drivers/ata/pata_rb532_cf.c
|
|
+++ b/drivers/ata/pata_rb532_cf.c
|
|
@@ -43,7 +43,8 @@
|
|
#define RB500_CF_REG_BASE 0x0800
|
|
#define RB500_CF_REG_ERR 0x080D
|
|
#define RB500_CF_REG_CTRL 0x080E
|
|
-#define RB500_CF_REG_DATA 0x0C00
|
|
+/* 32bit buffered data register offset */
|
|
+#define RB500_CF_REG_DBUF32 0x0C00
|
|
|
|
struct rb532_cf_info {
|
|
void __iomem *iobase;
|
|
@@ -74,19 +75,16 @@ static void rb532_pata_exec_command(struct ata_port *ap,
|
|
rb532_pata_finish_io(ap);
|
|
}
|
|
|
|
-static void rb532_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
|
|
- unsigned int buflen, int write_data)
|
|
+static void rb532_pata_data_xfer(struct ata_device *adev,
|
|
+ unsigned char *buf, unsigned int buflen, int write_data)
|
|
{
|
|
struct ata_port *ap = adev->link->ap;
|
|
void __iomem *ioaddr = ap->ioaddr.data_addr;
|
|
|
|
- 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);
|
|
}
|
|
@@ -156,7 +154,7 @@ static void rb532_pata_setup_ports(struct ata_host *ah)
|
|
|
|
ata_sff_std_ports(&ap->ioaddr);
|
|
|
|
- ap->ioaddr.data_addr = info->iobase + RB500_CF_REG_DATA;
|
|
+ ap->ioaddr.data_addr = info->iobase + RB500_CF_REG_DBUF32;
|
|
ap->ioaddr.error_addr = info->iobase + RB500_CF_REG_ERR;
|
|
}
|
|
|
|
--
|
|
1.5.6.4
|
|
|
|
|