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ArmPkg/BdsLib: Added FDT support for BdsLib

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Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13768 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-09-28 09:58:42 +00:00
parent 619b399888
commit 0a6653bc2a
13 changed files with 475 additions and 52 deletions
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42
ArmPkg/Library/BdsLib/BdsLinuxLoader.h
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@@ -16,11 +16,24 @@
#define __BDSLINUXLOADER_H
#define LINUX_UIMAGE_SIGNATURE 0x56190527
#define LINUX_ATAG_MAX_OFFSET (PcdGet32(PcdSystemMemoryBase) + PcdGet32(PcdArmLinuxAtagMaxOffset))
#define LINUX_KERNEL_MAX_OFFSET (PcdGet32(PcdSystemMemoryBase) + PcdGet32(PcdArmLinuxKernelMaxOffset))
#define LINUX_ATAG_MAX_OFFSET (PcdGet32(PcdSystemMemoryBase) + PcdGet32(PcdArmLinuxAtagMaxOffset))
#define LINUX_FDT_MAX_OFFSET (PcdGet32(PcdSystemMemoryBase) + PcdGet32(PcdArmLinuxFdtMaxOffset))
#define ATAG_MAX_SIZE 0x3000
// Additional size that could be used for FDT entries added by the UEFI OS Loader
// Estimation based on: EDID (300bytes) + bootargs (200bytes) + initrd region (20bytes)
// + system memory region (20bytes) + mp_core entries (200 bytes)
#define FDT_ADDITIONAL_ENTRIES_SIZE 0x300
#define ARM_FDT_MACHINE_TYPE 0xFFFFFFFF
typedef VOID (*LINUX_KERNEL)(UINT32 Zero, UINT32 Arch, UINTN ParametersBase);
//
// ATAG Definitions
//
#define ATAG_MAX_SIZE 0x3000
/* ATAG : list of possible tags */
#define ATAG_NONE 0x00000000
@@ -35,7 +48,9 @@
#define ATAG_CMDLINE 0x54410009
#define ATAG_ARM_MP_CORE 0x5441000A
/* structures for each atag */
#define next_tag_address(t) ((LINUX_ATAG*)((UINT32)(t) + (((t)->header.size) << 2) ))
#define tag_size(type) ((UINT32)((sizeof(LINUX_ATAG_HEADER) + sizeof(type)) >> 2))
typedef struct {
UINT32 size; /* length of tag in words including this header */
UINT32 type; /* tag type */
@@ -120,9 +135,22 @@ typedef struct {
} body;
} LINUX_ATAG;
typedef VOID (*LINUX_KERNEL)(UINT32 Zero, UINT32 Arch, UINTN ParametersBase);
EFI_STATUS
PrepareAtagList (
IN CONST CHAR8* CommandLineString,
IN EFI_PHYSICAL_ADDRESS InitrdImage,
IN UINTN InitrdImageSize,
OUT EFI_PHYSICAL_ADDRESS *AtagBase,
OUT UINT32 *AtagSize
);
#define next_tag_address(t) ((LINUX_ATAG*)((UINT32)(t) + (((t)->header.size) << 2) ))
#define tag_size(type) ((UINT32)((sizeof(LINUX_ATAG_HEADER) + sizeof(type)) >> 2))
EFI_STATUS
PrepareFdt (
IN CONST CHAR8* CommandLineArguments,
IN EFI_PHYSICAL_ADDRESS InitrdImage,
IN UINTN InitrdImageSize,
IN OUT EFI_PHYSICAL_ADDRESS *FdtBlobBase,
IN OUT UINT32 *FdtBlobSize
);
#endif