[freeldr] Rework the ramdisk driver to let it be a full device, instead of a deprecat...

[reactos.git] / reactos / boot / freeldr / freeldr / arch / arm / boot.s

diff --git a/reactos/boot/freeldr/freeldr/arch/arm/boot.s b/reactos/boot/freeldr/freeldr/arch/arm/boot.s
index 2683274..ab14f70 100644 (file)
--- a/reactos/boot/freeldr/freeldr/arch/arm/boot.s
+++ b/reactos/boot/freeldr/freeldr/arch/arm/boot.s
@@ -1,33 +1,18 @@
 /*
  * PROJECT:         ReactOS Boot Loader
- * LICENSE:         GPL - See COPYING in the top level directory
+ * LICENSE:         BSD - See COPYING.ARM in the top level directory
  * FILE:            boot/freeldr/arch/arm/boot.s
  * PURPOSE:         Implements the entry point for ARM machines
  * PROGRAMMERS:     ReactOS Portable Systems Group
  */
 
-/* INCLUDES *******************************************************************/
+    .title "ARM FreeLDR Entry Point"
+    .include "ntoskrnl/include/internal/arm/kxarm.h"
+    .include "ntoskrnl/include/internal/arm/ksarm.h"
 
-//#include <kxarm.h>
-
-#define CPSR_IRQ_DISABLE        0x80
-#define CPSR_FIQ_DISABLE        0x40
-#define CPSR_THUMB_ENABLE       0x20
-
-#define C1_MMU_CONTROL          0x01
-#define C1_ALIGNMENT_CONTROL    0x02
-#define C1_DCACHE_CONTROL       0x04
-#define C1_ICACHE_CONTROL       0x1000
-#define C1_VECTOR_CONTROL       0x2000
-
-/* GLOBALS ********************************************************************/
-
-.global _start
-.section startup
-   
-/* BOOT CODE ******************************************************************/
-   
-_start:
+    NESTED_ENTRY _start
+    PROLOG_END _start
+    
     //
     // C entrypoint
     //
@@ -42,11 +27,12 @@ _start:
     msr cpsr, r1
     
     //
-    // Turn off caches
+    // Turn off caches and the MMU
     //
     mrc p15, 0, r1, c1, c0, 0
     bic r1, r1, #C1_DCACHE_CONTROL
     bic r1, r1, #C1_ICACHE_CONTROL
+    bic r1, r1, #C1_MMU_CONTROL
     mcr p15, 0, r1, c1, c0, 0
     
     //
@@ -58,13 +44,14 @@ _start:
     //
     // Okay, now give us a stack
     //
-    ldr sp, L_BootStackEnd
+    //ldr sp, L_BootStackEnd
 
     //
     // Go ahead and call the C initialization code
     // r0 contains the ARM_BOARD_CONFIGURATION_DATA structure
     //
     bx lr
+    ENTRY_END _start
 
 L_BootStackEnd:
     .long BootStackEnd
@@ -72,8 +59,87 @@ L_BootStackEnd:
 L_ArmInit:
     .long ArmInit
 
-       .align 4
-BootStack:
-       .space 0x4000
-BootStackEnd:
-    .long 0
+.section pagedata
+.global TranslationTableStart
+TranslationTableStart:
+
+.global ArmTranslationTable
+ArmTranslationTable:
+    .space 0x4000 // 0x00000000->0xFFFFFFFF
+
+.global BootTranslationTable
+BootTranslationTable:
+    .space 0x0400 // 0x00000000->0x800FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00100000->0x801FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00200000->0x802FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00300000->0x803FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00400000->0x804FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00500000->0x805FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00600000->0x806FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00700000->0x807FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    
+.global KernelTranslationTable
+KernelTranslationTable:
+    .space 0x0400 // 0x00800000->0x808FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00900000->0x809FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00A00000->0x80AFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00B00000->0x80BFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00C00000->0x80CFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0x00D00000->0x80DFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    
+.global FlatMapTranslationTable
+FlatMapTranslationTable:
+    .space 0x0400 // 0xYYYYYYYY->0xC00FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC01FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC02FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC03FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC04FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC05FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC06FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC07FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC08FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC09FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC0AFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC0BFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC0CFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC0DFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC0EFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    .space 0x0400 // 0xYYYYYYYY->0xC0FFFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+    
+.global MasterTranslationTable
+MasterTranslationTable:
+    .space 0x0400 // 0xYYYYYYYY->0xC10FFFFF
+    .space 0x0C00 // PADDING FOR 4KB GRANULARITY
+
+.global TranslationTableEnd
+TranslationTableEnd: