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authorStefan Reinauer <stepan@coresystems.de>2010-03-30 21:52:05 +0000
committerStefan Reinauer <stepan@openbios.org>2010-03-30 21:52:05 +0000
commitcca626817dc88bfaec8b6ebf787f5f57006fe0cb (patch)
treea69b43a9ae39de47b4cd6da7fe81a8e3488b03fe /src/arch
parentc269d237f93d7867c7f4cad9a4d619b56f4a3d81 (diff)
get coreboot_ap memory training in cache mechanism in place. Didn't work since
Kconfig (needs more patches to ap_romstage.c but this is a first step) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5335 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/i386/Makefile.inc27
-rw-r--r--src/arch/i386/coreboot_apc.ld100
-rw-r--r--src/arch/i386/init/ldscript_apc.lb7
3 files changed, 25 insertions, 109 deletions
diff --git a/src/arch/i386/Makefile.inc b/src/arch/i386/Makefile.inc
index e9d651c1e9..d1cb806049 100644
--- a/src/arch/i386/Makefile.inc
+++ b/src/arch/i386/Makefile.inc
@@ -22,12 +22,16 @@ endif
ifeq ($(CONFIG_BOOTSPLASH),y)
COREBOOT_ROM_DEPENDENCIES+=$(CONFIG_FALLBACK_BOOTSPLASH_FILE)
endif
+ifeq ($(CONFIG_AP_CODE_IN_CAR),y)
+COREBOOT_ROM_DEPENDENCIES+=$(obj)/coreboot_ap
+endif
+
$(obj)/coreboot.rom: $(obj)/coreboot.pre $(obj)/coreboot_ram $(CBFSTOOL) $(call strip_quotes,$(COREBOOT_ROM_DEPENDENCIES))
printf " CBFS $(subst $(obj)/,,$(@))\n"
cp $(obj)/coreboot.pre $@.tmp
- if [ -f fallback/coreboot_apc ]; \
+ if [ -f $(obj)/coreboot_ap ]; \
then \
- $(CBFSTOOL) $@.tmp add-stage fallback/coreboot_apc $(CONFIG_CBFS_PREFIX)/coreboot_apc $(CBFS_COMPRESS_FLAG); \
+ $(CBFSTOOL) $@.tmp add-stage $(obj)/coreboot_ap $(CONFIG_CBFS_PREFIX)/coreboot_ap $(CBFS_COMPRESS_FLAG); \
fi
$(CBFSTOOL) $@.tmp add-stage $(obj)/coreboot_ram $(CONFIG_CBFS_PREFIX)/coreboot_ram $(CBFS_COMPRESS_FLAG)
ifeq ($(CONFIG_PAYLOAD_NONE),y)
@@ -81,6 +85,19 @@ $(obj)/coreboot.a: $$(objs)
$(AR) cr $(obj)/coreboot.a $^
#######################################################################
+# coreboot_ap.rom
+
+ifeq ($(CONFIG_AP_CODE_IN_CAR),y)
+
+$(obj)/coreboot_ap: $(obj)/mainboard/$(MAINBOARDDIR)/ap_romstage.o
+ @printf " CC $(subst $(obj)/,,$(@))\n"
+ $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/i386/init/ldscript_apc.lb $^
+ $(NM) -n $(obj)/coreboot_ap | sort > $(obj)/coreboot_ap.map
+
+
+endif
+
+#######################################################################
# done
crt0s =
@@ -174,10 +191,6 @@ ifeq ($(CONFIG_MMX),y)
crt0s += $(src)/cpu/x86/mmx_disable.inc
endif
-ifeq ($(CONFIG_AP_CODE_IN_CAR),y)
-ldscripts += $(src)/arch/i386/init/ldscript_apc.lb
-endif
-
ifeq ($(CONFIG_BIG_BOOTBLOCK),y)
crt0s += $(chipset_bootblock_inc)
ldscripts += $(chipset_bootblock_lds)
@@ -198,7 +211,7 @@ else
$(obj)/mainboard/$(MAINBOARDDIR)/ap_romstage.o: $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c $(OPTION_TABLE_H)
@printf " CC $(subst $(obj)/,,$(@))\n"
- $(CC) -MMD $(CFLAGS) -I$(src) -I. -c -S $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c -o $@
+ $(CC) -MMD $(CFLAGS) -I$(src) -I. -c $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c -o $@
$(obj)/mainboard/$(MAINBOARDDIR)/romstage.pre.inc: $(src)/mainboard/$(MAINBOARDDIR)/romstage.c $(OPTION_TABLE_H) $(obj)/build.h
printf " CC romstage.inc\n"
diff --git a/src/arch/i386/coreboot_apc.ld b/src/arch/i386/coreboot_apc.ld
deleted file mode 100644
index d7820aafe1..0000000000
--- a/src/arch/i386/coreboot_apc.ld
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Memory map:
- *
- * CONFIG_DCACHE_RAM_BASE
- * : data segment
- * : bss segment
- * : heap
- * : stack
- */
-/*
- * Bootstrap code for the STPC Consumer
- * Copyright (c) 1999 by Net Insight AB. All Rights Reserved.
- */
-
-/*
- * Written by Johan Rydberg, based on work by Daniel Kahlin.
- * Rewritten by Eric Biederman
- * 2005.12 yhlu add coreboot_ram cross the vga font buffer handling
- * 2006.05 yhlu tailed it to use it for AP code in cache
- */
-/*
- * We use ELF as output format. So that we can
- * debug the code in some form.
- */
-INCLUDE ldoptions
-
-ENTRY(_start)
-
-SECTIONS
-{
- . = CONFIG_DCACHE_RAM_BASE;
- /*
- * First we place the code and read only data (typically const declared).
- * This get placed in rom.
- */
- .text : {
- _text = .;
- *(.text);
- *(.text.*);
- . = ALIGN(16);
- _etext = .;
- }
- .rodata : {
- _rodata = .;
- . = ALIGN(4);
- *(.rodata)
- *(.rodata.*)
- . = ALIGN(4);
- _erodata = .;
- }
- /*
- * After the code we place initialized data (typically initialized
- * global variables). This gets copied into ram by startup code.
- * __data_start and __data_end shows where in ram this should be placed,
- * whereas __data_loadstart and __data_loadend shows where in rom to
- * copy from.
- */
- .data : {
- _data = .;
- *(.data)
- _edata = .;
- }
- /*
- * bss does not contain data, it is just a space that should be zero
- * initialized on startup. (typically uninitialized global variables)
- * crt0.S fills between _bss and _ebss with zeroes.
- */
- _bss = .;
- .bss . : {
- *(.bss)
- *(.sbss)
- *(COMMON)
- }
- _ebss = .;
- _end = .;
- . = ALIGN(0x1000);
- _stack = .;
- .stack . : {
- . = 0x4000;
- }
- _estack = .;
- _heap = .;
- .heap . : {
- . = ALIGN(4);
- }
- _eheap = .;
- /* The ram segment
- * This is all address of the memory resident copy of coreboot.
- */
- _ram_seg = _text;
- _eram_seg = _eheap;
-
- _bogus = ASSERT( ( _eram_seg <= ((CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE))) , "coreboot_apc is too big");
-
- /DISCARD/ : {
- *(.comment)
- *(.note)
- *(.note.*)
- }
-}
diff --git a/src/arch/i386/init/ldscript_apc.lb b/src/arch/i386/init/ldscript_apc.lb
index 2c8cb84e63..1e79c0aa6f 100644
--- a/src/arch/i386/init/ldscript_apc.lb
+++ b/src/arch/i386/init/ldscript_apc.lb
@@ -1,9 +1,12 @@
-INPUT(coreboot_apc.rom)
+/* INPUT(coreboot_ap.rom)*/
+INCLUDE "ldoptions"
SECTIONS
{
.apcrom . : {
_apcrom = .;
- coreboot_apc.rom(*)
+ *(.text)
+ *(.rodata)
+ *(.rodata.*)
_eapcrom = .;
}
_iseg_apc = CONFIG_DCACHE_RAM_BASE;