/* * This file is part of the coreboot project. * * Copyright 2014 Google Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /* This file contains macro definitions for memlayout.ld linker scripts. */ #ifndef __MEMLAYOUT_H #define __MEMLAYOUT_H #include <arch/memlayout.h> #define STR(x) #x #define SET_COUNTER(name, addr) \ _ = ASSERT(. <= addr, STR(name overlaps the previous region!)); \ . = addr; #define SYMBOL(name, addr) \ SET_COUNTER(name, addr) \ _##name = .; #define REGION(name, addr, size, expected_align) \ SYMBOL(name, addr) \ _ = ASSERT(. == ALIGN(expected_align), \ STR(name must be aligned to expected_align!)); \ SYMBOL(e##name, addr + size) /* Declare according to SRAM/DRAM ranges in SoC hardware-defined address map. */ #define SRAM_START(addr) SYMBOL(sram, addr) #define SRAM_END(addr) SYMBOL(esram, addr) #define DRAM_START(addr) SYMBOL(dram, addr) #define PRERAM_CBMEM_CONSOLE(addr, size) \ REGION(preram_cbmem_console, addr, size, 4) /* Use either CBFS_CACHE (unified) or both (PRERAM|POSTRAM)_CBFS_CACHE */ #define CBFS_CACHE(addr, size) REGION(cbfs_cache, addr, size, 4) /* TODO: This only works if you never access CBFS in romstage before RAM is up! * If you need to change that assumption, you have some work ahead of you... */ #if defined(__PRE_RAM__) && !defined(__ROMSTAGE__) #define PRERAM_CBFS_CACHE(addr, size) CBFS_CACHE(addr, size) #define POSTRAM_CBFS_CACHE(addr, size) \ REGION(unused_cbfs_cache, addr, size, 4) #else #define PRERAM_CBFS_CACHE(addr, size) \ REGION(unused_cbfs_cache, addr, size, 4) #define POSTRAM_CBFS_CACHE(addr, size) CBFS_CACHE(addr, size) #endif /* Careful: 'INCLUDE <filename>' must always be at the end of the output line */ #ifdef __BOOTBLOCK__ #define BOOTBLOCK(addr, sz) \ SET_COUNTER(bootblock, addr) \ _ = ASSERT(_ebootblock - _bootblock <= sz, \ STR(Bootblock exceeded its allotted size! (sz))); \ INCLUDE "lib/bootblock.bootblock.ld" #else #define BOOTBLOCK(addr, sz) \ SET_COUNTER(bootblock, addr) \ . += sz; #endif #ifdef __ROMSTAGE__ #define ROMSTAGE(addr, sz) \ SET_COUNTER(romstage, addr) \ _ = ASSERT(_eromstage - _romstage <= sz, \ STR(Romstage exceeded its allotted size! (sz))); \ INCLUDE "lib/romstage.romstage.ld" #else #define ROMSTAGE(addr, sz) \ SET_COUNTER(romstage, addr) \ . += sz; #endif #ifdef __RAMSTAGE__ #define RAMSTAGE(addr, sz) \ SET_COUNTER(ramstage, addr) \ _ = ASSERT(_eramstage - _ramstage <= sz, \ STR(Ramstage exceeded its allotted size! (sz))); \ INCLUDE "lib/ramstage.ramstage.ld" #else #define RAMSTAGE(addr, sz) \ SET_COUNTER(ramstage, addr) \ . += sz; #endif #define CBFS_HEADER_OFFSET(addr) REGION(cbfs_header_offset, addr, 4, 4) #endif /* __MEMLAYOUT_H */