diff options
| author | Phil Sutter <n0-1@freewrt.org> | 2008-11-28 20:48:26 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-12-01 13:49:08 -0500 |
| commit | 9f14786e27908a176f0568cf2132558efef71b31 (patch) | |
| tree | 6fa18433d61d3fa2629dd1a1e645602081e225c7 /drivers/ata/pata_rb532_cf.c | |
| parent | 1eedb4a90c958d8d59e0e4f19c297b445df21cf9 (diff) | |
| download | lwn-9f14786e27908a176f0568cf2132558efef71b31.tar.gz lwn-9f14786e27908a176f0568cf2132558efef71b31.zip | |
[libata] pata_rb532_cf: fix and rename register definitions
The original standalone driver uses a custom address for the error
register. Use it in pata_rb532_cf, too.
Rename two register definitions:
- The address offset 0x0800 in fact is the ATA base, not ATA command
address.
- The offset 0x0C00 is not a regular ATA data address, but a buffered one
allowing 4-byte IO.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_rb532_cf.c')
| -rw-r--r-- | drivers/ata/pata_rb532_cf.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c index f8b3ffc8ae9e..392116c1c16a 100644 --- a/drivers/ata/pata_rb532_cf.c +++ b/drivers/ata/pata_rb532_cf.c @@ -39,9 +39,11 @@ #define RB500_CF_MAXPORTS 1 #define RB500_CF_IO_DELAY 400 -#define RB500_CF_REG_CMD 0x0800 +#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; @@ -146,13 +148,14 @@ static void rb532_pata_setup_ports(struct ata_host *ah) ap->pio_mask = 0x1f; /* PIO4 */ ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO; - ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_CMD; + ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_BASE; ap->ioaddr.ctl_addr = info->iobase + RB500_CF_REG_CTRL; ap->ioaddr.altstatus_addr = info->iobase + RB500_CF_REG_CTRL; 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; } static __devinit int rb532_pata_driver_probe(struct platform_device *pdev) |