Revert "x86/PCI: ACPI based PCI gap calculation"

[linux-2.6-omap-h63xx.git] / arch / x86 / boot / edd.c

diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c
index bd138e442ec25bfd08b5dec3a166d1f5d4e6a48e..03399d64013b21459f63942c06bc6c33b803f425 100644 (file)
--- a/arch/x86/boot/edd.c
+++ b/arch/x86/boot/edd.c
@@ -9,8 +9,6 @@
  * ----------------------------------------------------------------------- */
 
 /*
- * arch/i386/boot/edd.c
- *
  * Get EDD BIOS disk information
  */
 
@@ -128,24 +126,42 @@ void query_edd(void)
 {
        char eddarg[8];
        int do_mbr = 1;
+#ifdef CONFIG_EDD_OFF
+       int do_edd = 0;
+#else
        int do_edd = 1;
+#endif
+       int be_quiet;
        int devno;
        struct edd_info ei, *edp;
        u32 *mbrptr;
 
        if (cmdline_find_option("edd", eddarg, sizeof eddarg) > 0) {
-               if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip"))
+               if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip")) {
+                       do_edd = 1;
                        do_mbr = 0;
+               }
                else if (!strcmp(eddarg, "off"))
                        do_edd = 0;
+               else if (!strcmp(eddarg, "on"))
+                       do_edd = 1;
        }
 
+       be_quiet = cmdline_find_option_bool("quiet");
+
        edp    = boot_params.eddbuf;
        mbrptr = boot_params.edd_mbr_sig_buffer;
 
        if (!do_edd)
                return;
 
+       /* Bugs in OnBoard or AddOnCards Bios may hang the EDD probe,
+        * so give a hint if this happens.
+        */
+
+       if (!be_quiet)
+               printf("Probing EDD (edd=off to disable)... ");
+
        for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) {
                /*
                 * Scan the BIOS-supported hard disks and query EDD
@@ -162,6 +178,9 @@ void query_edd(void)
                if (do_mbr && !read_mbr_sig(devno, &ei, mbrptr++))
                        boot_params.edd_mbr_sig_buf_entries = devno-0x80+1;
        }
+
+       if (!be_quiet)
+               printf("ok\n");
 }
 
 #endif