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authorPrarit Bhargava <prarit@sgi.com>2005-07-06 15:29:13 -0700
committerTony Luck <tony.luck@intel.com>2005-07-06 15:29:13 -0700
commit283c7f6ac6adb57e7dd13cdbc8d60b6ea4de6faf (patch)
tree53ce99a2373134c174f8df4f3729fcb4f11fb44e /arch/ia64/sn/kernel/setup.c
parente07d01e0aeba905aeca6e0ae612943417d396a0f (diff)
downloadop-kernel-dev-283c7f6ac6adb57e7dd13cdbc8d60b6ea4de6faf.zip
op-kernel-dev-283c7f6ac6adb57e7dd13cdbc8d60b6ea4de6faf.tar.gz
[IA64] hotplug/ia64: SN Hotplug Driver - new SN PROM version code
This patch is a rewrite of the code to check the PROM version. The current code has some deficiences in the way PROM comparisons were made. The minimum value of PROM that will boot has also been changed to 4.04. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn/kernel/setup.c')
-rw-r--r--arch/ia64/sn/kernel/setup.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 22e10d2..7c7fe44 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -270,7 +270,7 @@ void __init sn_setup(char **cmdline_p)
{
long status, ticks_per_sec, drift;
int pxm;
- int major = sn_sal_rev_major(), minor = sn_sal_rev_minor();
+ u32 version = sn_sal_rev();
extern void sn_cpu_init(void);
ia64_sn_plat_set_error_handling_features();
@@ -308,22 +308,21 @@ void __init sn_setup(char **cmdline_p)
* support here so we don't have to listen to failed keyboard probe
* messages.
*/
- if ((major < 2 || (major == 2 && minor <= 9)) &&
- acpi_kbd_controller_present) {
+ if (version <= 0x0209 && acpi_kbd_controller_present) {
printk(KERN_INFO "Disabling legacy keyboard support as prom "
"is too old and doesn't provide FADT\n");
acpi_kbd_controller_present = 0;
}
- printk("SGI SAL version %x.%02x\n", major, minor);
+ printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
/*
* Confirm the SAL we're running on is recent enough...
*/
- if ((major < SN_SAL_MIN_MAJOR) || (major == SN_SAL_MIN_MAJOR &&
- minor < SN_SAL_MIN_MINOR)) {
+ if (version < SN_SAL_MIN_VERSION) {
printk(KERN_ERR "This kernel needs SGI SAL version >= "
- "%x.%02x\n", SN_SAL_MIN_MAJOR, SN_SAL_MIN_MINOR);
+ "%x.%02x\n", SN_SAL_MIN_VERSION >> 8,
+ SN_SAL_MIN_VERSION & 0x00FF);
panic("PROM version too old\n");
}
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