From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: 1132110514 -0500
switched to ioremap(), cleaned the probing up a bit.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/in2000.c | 24 ++++++++++++++++++------
1 files changed, 18 insertions(+), 6 deletions(-)
e44467683e39fd741741d07d49515e3b20e3e104
diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c
--- a/drivers/scsi/in2000.c
+++ b/drivers/scsi/in2000.c
@@ -1898,6 +1898,21 @@ static int int_tab[] in2000__INITDATA =
10
};
+static int probe_bios(u32 addr, u32 *s1, uchar *switches)
+{
+ void __iomem *p = ioremap(addr, 0x34);
+ if (!p)
+ return 0;
+ *s1 = readl(p + 0x10);
+ if (*s1 == 0x41564f4e || readl(p + 0x30) == 0x61776c41) {
+ /* Read the switch image that's mapped into EPROM space */
+ *switches = ~readb(p + 0x20);
+ iounmap(p);
+ return 1;
+ }
+ iounmap(p);
+ return 0;
+}
static int __init in2000_detect(struct scsi_host_template * tpnt)
{
@@ -1930,6 +1945,7 @@ static int __init in2000_detect(struct s
detect_count = 0;
for (bios = 0; bios_tab[bios]; bios++) {
+ u32 s1 = 0;
if (check_setup_args("ioport", &val, buf)) {
base = val;
switches = ~inb(base + IO_SWITCHES) & 0xff;
@@ -1941,13 +1957,9 @@ static int __init in2000_detect(struct s
* for the obvious ID strings. We look for the 2 most common ones and
* hope that they cover all the cases...
*/
- else if (isa_readl(bios_tab[bios] + 0x10) == 0x41564f4e || isa_readl(bios_tab[bios] + 0x30) == 0x61776c41) {
+ else if (probe_bios(bios_tab[bios], &s1, &switches)) {
printk("Found IN2000 BIOS at 0x%x ", (unsigned int) bios_tab[bios]);
-/* Read the switch image that's mapped into EPROM space */
-
- switches = ~((isa_readb(bios_tab[bios] + 0x20) & 0xff));
-
/* Find out where the IO space is */
x = switches & (SW_ADDR0 | SW_ADDR1);
@@ -2037,7 +2049,7 @@ static int __init in2000_detect(struct s
/* Older BIOS's had a 'sync on/off' switch - use its setting */
- if (isa_readl(bios_tab[bios] + 0x10) == 0x41564f4e && (switches & SW_SYNC_DOS5))
+ if (s1 == 0x41564f4e && (switches & SW_SYNC_DOS5))
hostdata->sync_off = 0x00; /* sync defaults to on */
else
hostdata->sync_off = 0xff; /* sync defaults to off */
-
: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
