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#include <ip_checksum.h>
#include <boot/elf.h>
#include <boot/elf_boot.h>
#include <string.h>
#include <console/console.h>
#ifndef CMD_LINE
#define CMD_LINE ""
#endif
#define UPSZ(X) ((sizeof(X) + 3) &~3)
static struct {
Elf_Bhdr hdr;
Elf_Nhdr ft_hdr;
unsigned char ft_desc[UPSZ(FIRMWARE_TYPE)];
Elf_Nhdr bl_hdr;
unsigned char bl_desc[UPSZ(BOOTLOADER)];
Elf_Nhdr blv_hdr;
unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
Elf_Nhdr cmd_hdr;
unsigned char cmd_desc[UPSZ(CMD_LINE)];
} elf_boot_notes = {
.hdr = {
.b_signature = 0x0E1FB007,
.b_size = sizeof(elf_boot_notes),
.b_checksum = 0,
.b_records = 4,
},
.ft_hdr = {
.n_namesz = 0,
.n_descsz = sizeof(FIRMWARE_TYPE),
.n_type = EBN_FIRMWARE_TYPE,
},
.ft_desc = FIRMWARE_TYPE,
.bl_hdr = {
.n_namesz = 0,
.n_descsz = sizeof(BOOTLOADER),
.n_type = EBN_BOOTLOADER_NAME,
},
.bl_desc = BOOTLOADER,
.blv_hdr = {
.n_namesz = 0,
.n_descsz = sizeof(BOOTLOADER_VERSION),
.n_type = EBN_BOOTLOADER_VERSION,
},
.blv_desc = BOOTLOADER_VERSION,
.cmd_hdr = {
.n_namesz = 0,
.n_descsz = sizeof(CMD_LINE),
.n_type = EBN_COMMAND_LINE,
},
.cmd_desc = CMD_LINE,
};
int elf_check_arch(Elf_ehdr *ehdr)
{
return (
(ehdr->e_machine == EM_PPC) &&
(ehdr->e_ident[EI_CLASS] == ELFCLASS32) &&
(ehdr->e_ident[EI_DATA] == ELFDATA2MSB)
);
}
void jmp_to_elf_entry(void *entry, unsigned long buffer)
{
void (*kernel_entry)(void);
kernel_entry = entry;
/*
* Kernel will invalidate and disable dcache immediately on
* entry. This is bad if we've been using it, which we
* have. Make sure it is flushed to memory.
*/
flush_dcache();
/* On ppc we don't currently support loading over LinuxBIOS.
* So ignore the buffer.
*/
/* Jump to kernel */
kernel_entry();
}
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