[fireball] 27256: - Map framebuffer before jumping to the kernel (so we can do text output in the kernel early boot stage). - Shut down USB controller before jumping to the kernel. - Fix memory map (convert int property), also add a hack there to not touch anything above 0x700000.

Author: fireball
Date: Thu Jun 21 23:59:47 2007
New Revision: 27256

URL: http://svn.reactos.org/svn/reactos?rev=27256&view=rev
Log:
- Map framebuffer before jumping to the kernel (so we can do text output in the kernel
early boot stage).
- Shut down USB controller before jumping to the kernel.
- Fix memory map (convert int property), also add a hack there to not touch anything above
0x700000.

Modified:
    branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c
    branches/olpc/boot/freeldr/freeldr/arch/i386/macholpc.c
    branches/olpc/boot/freeldr/freeldr/arch/i386/mb.S

Modified: branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c
URL:
http://svn.reactos.org/svn/reactos/branches/olpc/boot/freeldr/freeldr/arch/…
==============================================================================
--- branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c (original)
+++ branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c Thu Jun 21 23:59:47 2007
@@ -44,6 +44,11 @@
 extern PAGE_DIRECTORY_X86 apic_pagetable;
 extern PAGE_DIRECTORY_X86 kpcr_pagetable;
 extern PAGE_DIRECTORY_X86 kuser_pagetable;
+extern PAGE_DIRECTORY_X86 framebuffer_pagetable;
+
+#define FRAMEBUFFER_PHYS 0xFD000000
+#define FRAMEBUFFER_VIRT 0xFF000000
+#define FRAMEBUFFER_SIZE 2 * 1024 * 1024
 
 PVOID
 NTAPI
@@ -73,6 +78,9 @@
 NTAPI
 FrLdrStartup(ULONG Magic)
 {
+    /* Goodbye OFW */
+    OFInterpret0("usb-quiet");
+
     /* Disable Interrupts */
     _disable();
 
@@ -189,6 +197,11 @@
     PageDir->Pde[KuserPageTableIndex].Valid = 1;
     PageDir->Pde[KuserPageTableIndex].Write = 1;
     PageDir->Pde[KuserPageTableIndex].PageFrameNumber = PaPtrToPfn(kuser_pagetable);
+
+    /* Set up framebuffer mapping PDE */
+    PageDir->Pde[FRAMEBUFFER_VIRT >> PDE_SHIFT].Valid = 1;
+    PageDir->Pde[FRAMEBUFFER_VIRT >> PDE_SHIFT].Write = 1;
+    PageDir->Pde[FRAMEBUFFER_VIRT >> PDE_SHIFT].PageFrameNumber =
PaPtrToPfn(framebuffer_pagetable);
 
     /* Set up Low Memory PTEs */
     PageDir = (PPAGE_DIRECTORY_X86)&lowmem_pagetable;
@@ -238,6 +251,16 @@
         PageDir->Pde[i].Owner = 1;
         PageDir->Pde[i].PageFrameNumber = PaToPfn(KI_USER_SHARED_DATA + i *
PAGE_SIZE);
     }
+
+    /* Set up Framebuffer PTEs */
+    PageDir = (PPAGE_DIRECTORY_X86)&framebuffer_pagetable;
+    for (i=0; i<512; i++)
+    {
+        PageDir->Pde[i].Valid = 1;
+        PageDir->Pde[i].Write = 1;
+        PageDir->Pde[i].PageFrameNumber = PaToPfn(FRAMEBUFFER_PHYS + i * PAGE_SIZE);
+    }
+
 }
 
 PLOADER_MODULE

Modified: branches/olpc/boot/freeldr/freeldr/arch/i386/macholpc.c
URL:
http://svn.reactos.org/svn/reactos/branches/olpc/boot/freeldr/freeldr/arch/…
==============================================================================
--- branches/olpc/boot/freeldr/freeldr/arch/i386/macholpc.c (original)
+++ branches/olpc/boot/freeldr/freeldr/arch/i386/macholpc.c Thu Jun 21 23:59:47 2007
@@ -28,11 +28,13 @@
 
 char BootPath[0x100] = { 0 }, BootPart[0x100] = { 0 }, CmdLine[0x100] = {
"bootprep" };
 
+int decode_int(UCHAR *p);
 VOID OlpcVideoInit();
 
 VOID
 XboxRTCGetCurrentDateTime(PULONG Year, PULONG Month, PULONG Day, PULONG Hour, PULONG
Minute, PULONG Second);
 
+ULONG_PTR MemMin, MemMax; // OFW can report whole physical memory region
 
 VOID
 OlpcMachInit(const char *CmdLine_)
@@ -151,10 +153,25 @@
 
     memhandle = OFFinddevice("/memory");
 
+	/* Get Max/Min memory boundaries */
+    returned = OFGetprop(memhandle, "reg", 
+			   (char *)memdata, sizeof(memdata));
+
+	ofwprintf("Returned 'reg' data: %d\n", returned);
+	if( returned == -1 )
+	{
+		ofwprintf("getprop /memory[@reg] failed\n");
+		return 0;
+	}
+	MemMin = decode_int(&memdata[0]);
+	MemMax = MemMin + decode_int(&memdata[1]);
+	ofwprintf("Memory start: %x, memory end: %x\n", MemMin, MemMax);
+
+	/* Get unclaimed regions */
     returned = OFGetprop(memhandle, "available", 
 			   (char *)memdata, sizeof(memdata));
 
-    ofwprintf("Returned data: %d\n", returned);
+    ofwprintf("Returned 'available' data: %d\n", returned);
     if( returned == -1 ) {
 	ofwprintf("getprop /memory[@reg] failed\n");
 	return 0;
@@ -165,36 +182,40 @@
     }
     ofwprintf("\n");
 
-    for( i = 0; i < returned / 2; i++ ) {
-	BiosMemoryMap[slots].Type = 1/*MEMTYPE_USABLE*/;
-	BiosMemoryMap[slots].BaseAddress = memdata[i*2];
-	BiosMemoryMap[slots].Length = memdata[i*2+1];
-	ofwprintf("MemoryMap[%d] = (%x:%x)\n", 
-	       i, 
-	       (int)BiosMemoryMap[slots].BaseAddress,
-	       (int)BiosMemoryMap[slots].Length);
-
-	/* Hack for pearpc */
-	if(/* kernel_mem */FALSE) {
-	    /*BiosMemoryMap[slots].Length = kernel_mem * 1024;
-	    if( !FixedMemory ) {
-		OFClaim((int)BiosMemoryMap[slots].BaseAddress,
-			  (int)BiosMemoryMap[slots].Length,
-			  0x1000);
-		FixedMemory = BiosMemoryMap[slots].BaseAddress;
-	    }
-	    total += BiosMemoryMap[slots].Length;
-	    slots++;*/
-	    break;
-	/* Normal way */
-	} else if( BiosMemoryMap[slots].Length &&
-		   OFClaim((int)BiosMemoryMap[slots].BaseAddress,
-			     (int)BiosMemoryMap[slots].Length,
-			     0x1000) ) {
-	    total += BiosMemoryMap[slots].Length;
-	    slots++;
-	}
-    }
+	for( i = 0; i < returned / 2; i++ )
+	{
+		if (decode_int(&memdata[i*2]) > 0x7000000)
+			continue;
+
+		BiosMemoryMap[slots].Type = 1/*MEMTYPE_USABLE*/;
+		BiosMemoryMap[slots].BaseAddress = decode_int(&memdata[i*2]);
+		BiosMemoryMap[slots].Length = decode_int(&memdata[i*2+1]);
+		ofwprintf("MemoryMap[%d] = (%x:%x)\n", 
+			i, 
+			(int)BiosMemoryMap[slots].BaseAddress,
+			(int)BiosMemoryMap[slots].Length);
+
+		/* Hack for pearpc */
+		if(/* kernel_mem */FALSE) {
+			/*BiosMemoryMap[slots].Length = kernel_mem * 1024;
+			if( !FixedMemory ) {
+			OFClaim((int)BiosMemoryMap[slots].BaseAddress,
+			(int)BiosMemoryMap[slots].Length,
+			0x1000);
+			FixedMemory = BiosMemoryMap[slots].BaseAddress;
+			}
+			total += BiosMemoryMap[slots].Length;
+			slots++;*/
+			break;
+			/* Normal way */
+		} else if( BiosMemoryMap[slots].Length &&
+			OFClaim((int)BiosMemoryMap[slots].BaseAddress,
+			(int)BiosMemoryMap[slots].Length,
+			0x1000) ) {
+				total += BiosMemoryMap[slots].Length;
+				slots++;
+		}
+	}
 
     ofwprintf( "Returning memory map (%dk total)\n", total / 1024 );
 

Modified: branches/olpc/boot/freeldr/freeldr/arch/i386/mb.S
URL:
http://svn.reactos.org/svn/reactos/branches/olpc/boot/freeldr/freeldr/arch/…
==============================================================================
--- branches/olpc/boot/freeldr/freeldr/arch/i386/mb.S (original)
+++ branches/olpc/boot/freeldr/freeldr/arch/i386/mb.S Thu Jun 21 23:59:47 2007
@@ -38,6 +38,7 @@
     .globl _apic_pagetable
     .globl _kpcr_pagetable
     .globl _kuser_pagetable
+    .globl _framebuffer_pagetable
 
     .globl _PageDirectoryEnd
 
@@ -76,4 +77,7 @@
 _kuser_pagetable:
 	.fill 4096, 1, 0   
 
+_framebuffer_pagetable:
+	.fill 4096, 1, 0   
+
 _PageDirectoryEnd: