Sync with trunk r47129
[reactos.git] / boot / armllb / hw / versatile / hwinfo.c
1 /*
2 * PROJECT: ReactOS Boot Loader
3 * LICENSE: BSD - See COPYING.ARM in the top level directory
4 * FILE: boot/armllb/hw/versatile/hwinfo.c
5 * PURPOSE: LLB Hardware Info Routines
6 * PROGRAMMERS: ReactOS Portable Systems Group
7 */
8
9 #include "precomp.h"
10
11 #define PL031_RTC_DR (LlbHwVersaRtcBase + 0x00)
12 static const ULONG LlbHwVersaRtcBase = 0x101E8000;
13
14 ULONG
15 NTAPI
16 LlbHwGetBoardType(VOID)
17 {
18 return MACH_TYPE_VERSATILE_PB;
19 }
20
21 ULONG
22 NTAPI
23 LlbHwGetPClk(VOID)
24 {
25 return 24000000;
26 }
27
28 ULONG
29 NTAPI
30 LlbHwGetTmr0Base(VOID)
31 {
32 return 0x101E2000;
33 }
34
35 ULONG
36 NTAPI
37 LlbHwGetSerialUart(VOID)
38 {
39 return 0;
40 }
41
42 //
43 // Versatile Memory Map
44 //
45 // 0x00000000 - 0x000000FF ARM Vectors [ 1 KB]
46 // 0x00000100 - 0x000001FF ATAG Structures [ 1 KB]
47 // 0x00000200 - 0x0000FFFF ARM STACK [ 62 KB]
48 // 0x00010000 - 0x0001FFFF ARM LLB [ 64 KB]
49 // 0x00020000 - 0x0009FFFF ARM OS LOADER [512 KB]
50 // 0x000A0000 - 0x0013FFFF ARM FRAMEBUFFER [640 KB]
51 // 0x00140000 - 0x007FFFFF OS LOADER FREE/UNUSED [ 6 MB]
52 // 0x00800000 - 0x017FFFFF KERNEL, HAL, INITIAL DRIVER LOAD ADDR [ 16 MB]
53 // 0x01800000 - 0x037FFFFF RAM DISK [ 32 MB]
54 // 0x03800000 - 0x07FFFFFF FREE RAM [ 72 MB]
55 // 0x08000000 - 0x0FFFFFFF FREE RAM IF 256MB DEVICE [128 MB]
56 // 0x10000000 - 0x1FFFFFFF MMIO DEVICES [256 MB]
57 BIOS_MEMORY_MAP LlbHwVersaMemoryMap[] =
58 {
59 {0x00000000, 0x00000100, BiosMemoryReserved, 0},
60 {0x00000100, 0x00000100, BiosMemoryBootStrap, 0},
61 {0x00000200, 0x0000FE00, BiosMemoryBootStrap, 0},
62 {0x00010000, 0x00010000, BiosMemoryBootStrap, 0},
63 {0x00020000, 0x00080000, BiosMemoryBootLoader, 0},
64 {0x000A0000, 0x000A0000, BiosMemoryBootLoader, 0},
65 {0x00140000, 0x016C0000, BiosMemoryUsable, 0},
66 {0x01800000, 0x02000000, BiosMemoryReserved, 0},
67 {0x10000000, 0x10000000, BiosMemoryReserved, 0},
68 {0, 0, 0, 0}
69 };
70
71 VOID
72 NTAPI
73 LlbHwBuildMemoryMap(IN PBIOS_MEMORY_MAP MemoryMap)
74 {
75 PBIOS_MEMORY_MAP MapEntry;
76 ULONG Base, Size, FsBase, FsSize;
77
78 /* Parse hardware memory map */
79 MapEntry = LlbHwVersaMemoryMap;
80 while (MapEntry->Length)
81 {
82 /* Add this entry */
83 LlbAllocateMemoryEntry(MapEntry->Type, MapEntry->BaseAddress, MapEntry->Length);
84
85 /* Move to the next one */
86 MapEntry++;
87 }
88
89 /* Query memory and RAMDISK information */
90 LlbEnvGetMemoryInformation(&Base, &Size);
91 LlbEnvGetRamDiskInformation(&FsBase, &FsSize);
92
93 /* Add-in the size of the ramdisk */
94 Base = FsBase + FsSize;
95
96 /* Subtract size of ramdisk and anything else before it */
97 Size -= Base;
98
99 /* Allocate an entry for it */
100 LlbAllocateMemoryEntry(BiosMemoryUsable, Base, Size);
101 }
102
103 ULONG
104 LlbHwRtcRead(VOID)
105 {
106 /* Read RTC value */
107 return READ_REGISTER_ULONG(PL031_RTC_DR);
108 }
109 /* EOF */