>From 79265ffab56281416edc48b3daf825a1e00ee5fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Rebe?= <address@hidden>
Date: Tue, 24 Dec 2013 02:39:54 +0100
Subject: [PATCH] fix PPC OpenHackWare for Linux 2.6

---
 pc-bios/ohw.diff | 67 ++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 55 insertions(+), 12 deletions(-)

diff --git a/pc-bios/ohw.diff b/pc-bios/ohw.diff
index c6b6623..4f1680b 100644
--- a/pc-bios/ohw.diff
+++ b/pc-bios/ohw.diff
@@ -1,3 +1,19 @@
+Make it link at al.
+
+  - Rene Rebe <address@hidden>
+
+--- OpenHackWare-release-0.4/src/main.ld       2005-03-31 09:23:33.000000000 +0200
++++ OpenHackWare-release-0.4-hacked/src/main.ld        2008-05-06 11:23:29.000000000 +0200
+@@ -49,7 +49,7 @@
+         _sdata_end = . ;
+         . = ALIGN(4) ;
+         _ro_start = . ;
+-        .rodata    : { *(.rodata) } > bios
++        .rodata    : { *(.rodata*) } > bios
+         _ro_end = . ;
+         . = ALIGN(4) ;
+         _RTAS_start = .;
+
 diff -wruN --exclude '*~' --exclude '*.o' --exclude '*.bin' --exclude '*.out' --exclude mkdiff OpenHackWare-release-0.4.org/src/bios.h OpenHackWare-release-0.4/src/bios.h
 --- OpenHackWare-release-0.4.org/src/bios.h	2005-04-06 23:20:22.000000000 +0200
 +++ OpenHackWare-release-0.4/src/bios.h	2005-07-07 01:10:20.000000000 +0200
@@ -748,24 +764,14 @@ diff -wruN --exclude '*~' --exclude '*.o' --exclude '*.bin' --exclude '*.out' --
          {
              /* Hack taken 'as-is' from PearPC */
              unsigned char info[] = {
-@@ -1596,7 +1627,9 @@
-         OF_node_put(OF_env, brom);
+@@ -1596,6 +1627,7 @@
          OF_node_put(OF_env, rom);
      }
-+#if 0
      /* From here, hardcoded hacks to get a Mac-like machine */
-+    /* XXX: Core99 does not seem to like this NVRAM tree */
++    /* XXX: Not yet perfect, but Linux 2.6 does oops on boot on Core99 without NVRAM node */
      /* "/address@hidden" node */
      {
          OF_regprop_t regs;
-@@ -1617,6 +1650,7 @@
-         OF_prop_int_new(OF_env, chs, "nvram", OF_pack_handle(OF_env, nvr));
-         OF_node_put(OF_env, nvr);
-     }
-+#endif
-     /* "/pseudo-hid" : hid emulation as Apple does */
-     {
-         OF_node_t *hid;
 @@ -1663,7 +1697,27 @@
          }
          OF_node_put(OF_env, hid);
@@ -1841,3 +1847,40 @@ diff -wruN --exclude '*~' --exclude '*.o' --exclude '*.bin' --exclude '*.out' --
      case ARCH_MAC99:
          /* We are supposed to have 3 host bridges:
           * - the uninorth AGP bridge at 0xF0000000
+
+
+The 2.6 Linux kernel checks for 1, as I do not have the IEEE spec on
+my desk I can only guess it should return 1 on success, not the
+string length.
+
+  - Rene Rebe <address@hidden>
+
+--- OpenHackWare-release-0.4/src/of.c  2005-04-06 23:17:26.000000000 +0200
++++ OpenHackWare-release-0.4-hacked/src/of.c   2008-05-06 14:50:48.000000000 +0200
+@@ -3841,7 +4061,7 @@
+             OF_DPRINTF("Return property name [%s]\n", next->name);
+             OF_sts(next_name, (void *)(next->name));
+             OF_DUMP_STRING(OF_env, next_name);
+-            pushd(OF_env, strlen(next->name) + 1);
++            pushd(OF_env, 1); /* ReneR: Linux 2.6 flatten_device_tree */
+         }
+     }
+ }
+
+
+In qemu r3309 j_mayer did some "Quickly hack PowerPC BIOS able to boot
+on CDROM again.", as I did not feel like disassemble to find out this
+worked for me for now.
+
+  - Rene Rebe <address@hidden>
+
+--- OpenHackWare-release-0.4/src/bloc.c        2005-04-06 23:21:00.000000000 +0200
++++ OpenHackWare-release-0.4-hacked/src/bloc.c 2008-05-06 14:20:10.000000000 +0200
+@@ -1021,7 +1038,7 @@
+         status = ide_port_read(bd, 0x07);
+         if (status != 0x08) {
+             ERROR("ATAPI TEST_UNIT_READY : status %0x != 0x08\n", status);
+-            return -1;
++            /*return -1;*/ /* fails to boot from cdrom? */
+         }
+         for (i = 0; i < 3; i++) {
-- 
1.8.4