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authorOndrej Zary <linux@rainbow-software.org>2015-11-17 19:24:10 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2015-11-25 22:08:45 -0500
commit6a1961bc9c8916fc40423cc71e44fd8c59fef360 (patch)
tree17a0fc99774f2e0a7fd6e0883cf6b0b3ee0977e8 /drivers/scsi/atp870u.c
parentc751d9f1fce4187bf1c0848d7d3a5bf7644d7f9c (diff)
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atp870u: Introduce atp_set_host_id
The code for setting host adapter ID is the same for all chips. Move it to a common function. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Reviewed-by: Hannes Reinicke <hare@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/atp870u.c')
-rw-r--r--drivers/scsi/atp870u.c57
1 files changed, 18 insertions, 39 deletions
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 04b29d3e65d6..96214035b6d6 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -1229,6 +1229,18 @@ static int atp870u_init_tables(struct Scsi_Host *host)
return 0;
}
+static void atp_set_host_id(struct atp_unit *atp, u8 c, u8 host_id)
+{
+ atp_writeb_io(atp, c, 0, host_id | 0x08);
+ atp_writeb_io(atp, c, 0x18, 0);
+ while ((atp_readb_io(atp, c, 0x1f) & 0x80) == 0)
+ mdelay(1);
+ atp_readb_io(atp, c, 0x17);
+ atp_writeb_io(atp, c, 1, 8);
+ atp_writeb_io(atp, c, 2, 0x7f);
+ atp_writeb_io(atp, c, 0x11, 0x20);
+}
+
/* return non-zero on detection */
static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
@@ -1379,14 +1391,8 @@ flash_ok_880:
mdelay(32);
atp_readb_io(p, 0, 0x1b);
atp_readb_io(p, 0, 0x17);
- atp_writeb_io(p, 0, 0, host_id | 0x08);
- atp_writeb_io(p, 0, 0x18, 0);
- while ((atp_readb_io(p, 0, 0x1f) & 0x80) == 0)
- mdelay(1);
- atp_readb_io(p, 0, 0x17);
- atp_writeb_io(p, 0, 1, 8);
- atp_writeb_io(p, 0, 2, 0x7f);
- atp_writeb_io(p, 0, 0x11, 0x20);
+
+ atp_set_host_id(p, 0, host_id);
tscam(shpnt);
atp_is(p, 0, true, atp_readb_base(p, 0x3f) & 0x40);
@@ -1503,35 +1509,16 @@ flash_ok_885:
atp_readb_io(p, 0, 0x17);
atp_readb_io(p, 1, 0x1b);
atp_readb_io(p, 1, 0x17);
+
k=p->host_id[0];
if (k > 7)
k = (k & 0x07) | 0x40;
- k |= 0x08;
- atp_writeb_io(p, 0, 0, k);
- atp_writeb_io(p, 0, 0x18, 0);
-
- while ((atp_readb_io(p, 0, 0x1f) & 0x80) == 0)
- cpu_relax();
-
- atp_readb_io(p, 0, 0x17);
- atp_writeb_io(p, 0, 1, 8);
- atp_writeb_io(p, 0, 2, 0x7f);
- atp_writeb_io(p, 0, 0x11, 0x20);
+ atp_set_host_id(p, 0, k);
k=p->host_id[1];
if (k > 7)
k = (k & 0x07) | 0x40;
- k |= 0x08;
- atp_writeb_io(p, 1, 0, k);
- atp_writeb_io(p, 1, 0x18, 0);
-
- while ((atp_readb_io(p, 1, 0x1f) & 0x80) == 0)
- cpu_relax();
-
- atp_readb_io(p, 1, 0x17);
- atp_writeb_io(p, 1, 1, 8);
- atp_writeb_io(p, 1, 2, 0x7f);
- atp_writeb_io(p, 1, 0x11, 0x20);
+ atp_set_host_id(p, 1, k);
tscam_885();
printk(KERN_INFO " Scanning Channel A SCSI Device ...\n");
@@ -1608,15 +1595,7 @@ flash_ok_885:
mdelay(32);
atp_writeb_base(p, 0x3a, k);
mdelay(32);
- atp_writeb_io(p, 0, 0, host_id | 0x08);
- atp_writeb_io(p, 0, 0x18, 0);
- while ((atp_readb_io(p, 0, 0x1f) & 0x80) == 0)
- mdelay(1);
-
- atp_readb_io(p, 0, 0x17);
- atp_writeb_io(p, 0, 1, 8);
- atp_writeb_io(p, 0, 2, 0x7f);
- atp_writeb_io(p, 0, 0x11, 0x20);
+ atp_set_host_id(p, 0, host_id);
tscam(shpnt);
atp_writeb_base(p, 0x3a, atp_readb_base(p, 0x3a) | 0x10);