coreboot-kgpe-d16/payloads/libpayload/libcbfs/cbfs.c

102 lines
2.8 KiB
C

/*
* This file is part of the libpayload project.
*
* Copyright (C) 2011 secunet Security Networks AG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <arch/endian.h>
#include <stdio.h>
#include <string.h>
#include <cbfs.h>
#ifdef CONFIG_LZMA
#define CBFS_CORE_WITH_LZMA
#include <lzma.h>
#endif
#define ERROR(x...) printf(x)
#define LOG(x...)
static uint32_t host_virt_to_phys(void *addr);
static void *host_phys_to_virt(uint32_t addr);
uint32_t romstart(void);
uint32_t romend(void);
#include <arch/virtual.h>
static uint32_t host_virt_to_phys(void *addr) {
return virt_to_phys(addr);
}
static void *host_phys_to_virt(uint32_t addr) {
return phys_to_virt(addr);
}
#undef virt_to_phys
#undef phys_to_virt
uint32_t (*virt_to_phys)(void *) = host_virt_to_phys;
void* (*phys_to_virt)(uint32_t) = host_phys_to_virt;
uint32_t _romstart = 0xffffffff;
uint32_t _romend = 0;
uint32_t romstart(void)
{
return _romstart;
}
uint32_t romend(void)
{
return _romend;
}
#include "cbfs_core.c"
static uint32_t ram_cbfs_offset;
static uint32_t ram_virt_to_phys(void *addr) {
return (uint32_t)addr - ram_cbfs_offset;
}
static void *ram_phys_to_virt(uint32_t addr) {
return (void*)addr + ram_cbfs_offset;
}
void setup_cbfs_from_ram(void* start, uint32_t size)
{
/* assumes rollover */
ram_cbfs_offset = (uint32_t)start + size;
virt_to_phys = ram_virt_to_phys;
phys_to_virt = ram_phys_to_virt;
}
void setup_cbfs_from_flash()
{
virt_to_phys = host_virt_to_phys;
phys_to_virt = host_phys_to_virt;
}