mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 21:54:01 +00:00
0914011310
We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass <sjg@chromium.org>
93 lines
3.1 KiB
C
93 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2008
|
|
* Niklaus Giger, niklaus.giger@member.fsf.org
|
|
*/
|
|
|
|
#ifndef _VXWORKS_H_
|
|
#define _VXWORKS_H_
|
|
|
|
#include <efi_api.h>
|
|
|
|
struct bootm_headers;
|
|
struct cmd_tbl;
|
|
|
|
/* Use Linux compatible standard DTB */
|
|
#define VXWORKS_SYSFLG_STD_DTB 0x1
|
|
|
|
/*
|
|
* Physical address of memory base for VxWorks x86
|
|
* This is LOCAL_MEM_LOCAL_ADRS in the VxWorks kernel configuration.
|
|
*/
|
|
#define VXWORKS_PHYS_MEM_BASE 0x100000
|
|
|
|
/* x86 bootline offset relative to LOCAL_MEM_LOCAL_ADRS in VxWorks */
|
|
#define X86_BOOT_LINE_OFFSET 0x1200
|
|
|
|
/*
|
|
* VxWorks x86 E820 related stuff
|
|
*
|
|
* VxWorks on x86 gets E820 information from pre-defined offset @
|
|
* 0x4a00 and 0x4000. At 0x4a00 it's an information table defined
|
|
* by VxWorks and the actual E820 table entries starts from 0x4000.
|
|
* As defined by the BIOS E820 spec, the maximum number of E820 table
|
|
* entries is 128 and each entry occupies 20 bytes, so it's 128 * 20
|
|
* = 2560 (0xa00) bytes in total. That's where VxWorks stores some
|
|
* information that is retrieved from the BIOS E820 call and saved
|
|
* later for sanity test during the kernel boot-up.
|
|
*/
|
|
#define E820_DATA_OFFSET 0x4000
|
|
#define E820_INFO_OFFSET 0x4a00
|
|
|
|
/* E820 info signatiure "SMAP" - System MAP */
|
|
#define E820_SIGNATURE 0x534d4150
|
|
|
|
struct e820_info {
|
|
u32 sign; /* "SMAP" signature */
|
|
u32 x0; /* don't care, used by VxWorks */
|
|
u32 x1; /* don't care, used by VxWorks */
|
|
u32 x2; /* don't care, used by VxWorks */
|
|
u32 addr; /* last e820 table entry addr */
|
|
u32 x3; /* don't care, used by VxWorks */
|
|
u32 entries; /* e820 table entry count */
|
|
u32 error; /* must be zero */
|
|
};
|
|
|
|
/*
|
|
* VxWorks bootloader stores its size at a pre-defined offset @ 0x5004.
|
|
* Later when VxWorks kernel boots up and system memory information is
|
|
* retrieved from the E820 table, the bootloader size will be subtracted
|
|
* from the total system memory size to calculate the size of available
|
|
* memory for the OS.
|
|
*/
|
|
#define BOOT_IMAGE_SIZE_OFFSET 0x5004
|
|
|
|
/*
|
|
* When booting from EFI BIOS, VxWorks bootloader stores the EFI GOP
|
|
* framebuffer info at a pre-defined offset @ 0x6100. When VxWorks kernel
|
|
* boots up, its EFI console driver tries to find such a block and if
|
|
* the signature matches, the framebuffer information will be used to
|
|
* initialize the driver.
|
|
*
|
|
* However it is not necessary to prepare an EFI environment for VxWorks's
|
|
* EFI console driver to function (eg: EFI loader in U-Boot). If U-Boot has
|
|
* already initialized the graphics card and set it to a VESA mode that is
|
|
* compatible with EFI GOP, we can simply prepare such a block for VxWorks.
|
|
*/
|
|
#define EFI_GOP_INFO_OFFSET 0x6100
|
|
|
|
/* EFI GOP info signatiure */
|
|
#define EFI_GOP_INFO_MAGIC 0xfeedface
|
|
|
|
struct efi_gop_info {
|
|
u32 magic; /* signature */
|
|
struct efi_gop_mode_info info; /* EFI GOP mode info structure */
|
|
phys_addr_t fb_base; /* framebuffer base address */
|
|
u32 fb_size; /* framebuffer size */
|
|
};
|
|
|
|
int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
|
|
void boot_prep_vxworks(struct bootm_headers *images);
|
|
void boot_jump_vxworks(struct bootm_headers *images);
|
|
|
|
#endif
|