sticore: don't activate unsupported GSC STI cards on HPPA

[linux-2.6-omap-h63xx.git] / drivers / video / console / sticore.c

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index d7822af0e00a2353b6b2fe75e40c5e8513902e73..ef7870f5ea088e7e9eb8f59b6292175a6508915e 100644 (file)
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -24,6 +24,7 @@
 #include <asm/hardware.h>
 #include <asm/parisc-device.h>
 #include <asm/cacheflush.h>
+#include <asm/grfioctl.h>
 
 #include "../sticore.h"
 
@@ -725,6 +726,7 @@ static int __devinit sti_read_rom(int wordmode, struct sti_struct *sti,
 {
        struct sti_cooked_rom *cooked;
        struct sti_rom *raw = NULL;
+       unsigned long revno;
 
        cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
        if (!cooked)
@@ -767,9 +769,35 @@ static int __devinit sti_read_rom(int wordmode, struct sti_struct *sti,
        sti->graphics_id[1] = raw->graphics_id[1];
        
        sti_dump_rom(raw);
-       
+
+       /* check if the ROM routines in this card are compatible */
+       if (wordmode || sti->graphics_id[1] != 0x09A02587)
+               goto ok;
+
+       revno = (raw->revno[0] << 8) | raw->revno[1];
+
+       switch (sti->graphics_id[0]) {
+       case S9000_ID_HCRX:
+               /* HyperA or HyperB ? */
+               if (revno == 0x8408 || revno == 0x840b)
+                       goto msg_not_supported;
+               break;
+       case CRT_ID_THUNDER:
+               if (revno == 0x8509)
+                       goto msg_not_supported;
+               break;
+       case CRT_ID_THUNDER2:
+               if (revno == 0x850c)
+                       goto msg_not_supported;
+       }
+ok:
        return 1;
 
+msg_not_supported:
+       printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
+       printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
+                       "graphics-howto.html for more info.\n");
+       /* fall through */
 out_err:
        kfree(raw);
        kfree(cooked);