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authorPatrick Georgi <patrick.georgi@coresystems.de>2009-12-31 12:56:53 +0000
committerPatrick Georgi <patrick.georgi@coresystems.de>2009-12-31 12:56:53 +0000
commit1bb68289001f95b49499ac8eb483a7a10e64cc52 (patch)
treec1d60ba92227bc29ef48c0afb273db4825524dd2 /src/arch
parent9db833bec394b886ca990965970cdb100b65d9ac (diff)
downloadcoreboot-1bb68289001f95b49499ac8eb483a7a10e64cc52.tar.xz
romcc:
- Set __PRE_RAM__ define per default - Properly handle ignored (#ifdef'd out) #include lines amd/serengeti_cheetah_fam10: - write ACPI files to $(obj) instead of the top dir (alias $(CURDIR)) tinybootblock: - provide a way to define code that should be added to the bootblock, to map the entire ROM for use by CBFS amd/model_fxx, amd/model_10xxx: - add CONFIG_SSE walkcbfs.S: - eliminate the use of two registers, to make space for romcc to wiggle amd/serengeti_cheetah_fam10: - use the enable_rom framework. not entirely functional yet Boot-tested on emulation/qemu-x86 Build-tested on amd/serengeti_cheetah_fam10 amd/serengeti_cheetah_fam10 fails in amdht/ somewhere, but builds Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4994 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/i386/Kconfig6
-rw-r--r--src/arch/i386/Makefile.tinybootblock.inc10
-rw-r--r--src/arch/i386/init/bootblock.c32
-rw-r--r--src/arch/i386/lib/walkcbfs.S42
4 files changed, 65 insertions, 25 deletions
diff --git a/src/arch/i386/Kconfig b/src/arch/i386/Kconfig
index 19bd63a0d4..1d01d09263 100644
--- a/src/arch/i386/Kconfig
+++ b/src/arch/i386/Kconfig
@@ -43,3 +43,9 @@ config MAX_REBOOT_CNT
config TINY_BOOTBLOCK
bool
default n
+
+config BOOTBLOCK_NORTHBRIDGE_INIT
+ string
+
+config BOOTBLOCK_SOUTHBRIDGE_INIT
+ string
diff --git a/src/arch/i386/Makefile.tinybootblock.inc b/src/arch/i386/Makefile.tinybootblock.inc
index 86a71a8b7e..a3f38ce071 100644
--- a/src/arch/i386/Makefile.tinybootblock.inc
+++ b/src/arch/i386/Makefile.tinybootblock.inc
@@ -30,9 +30,17 @@ bootblock_inc += $(src)/cpu/x86/16bit/entry16.inc
bootblock_inc += $(src)/cpu/x86/16bit/reset16.inc
bootblock_inc += $(src)/cpu/x86/32bit/entry32.inc
bootblock_inc += $(src)/arch/i386/lib/id.inc
+ifeq ($(CONFIG_SSE),y)
+bootblock_inc += $(src)/cpu/x86/sse_enable.inc
+endif
bootblock_inc += $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.inc
bootblock_inc += $(src)/arch/i386/lib/walkcbfs.S
+bootblock_romccflags := -mcpu=i386
+ifeq ($(CONFIG_SSE),y)
+bootblock_romccflags := -mcpu=k7 -msse
+endif
+
$(obj)/bootblock/ldscript.ld: $(bootblock_ldscripts) $(obj)/ldoptions
mkdir -p $(obj)/bootblock
printf '$(foreach ldscript,ldoptions $(bootblock_lds),INCLUDE "$(ldscript)"\n)' > $@
@@ -48,7 +56,7 @@ $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.s: $(obj)/bootblock/bootblock.c
$(CC) -x assembler-with-cpp -DASSEMBLY -E -I$(src)/include -I$(src)/arch/i386/include -I$(obj) -I$(obj)/bootblock -include $(obj)/config.h -I. -I$(src) $< > $@.new && mv $@.new $@
$(obj)/mainboard/$(MAINBOARDDIR)/bootblock.inc: $(obj)/romcc $(src)/arch/i386/init/bootblock.c
- $(obj)/romcc $(ROMCCFLAGS) $(INCLUDES) $(src)/arch/i386/init/bootblock.c -o $@
+ $(obj)/romcc $(bootblock_romccflags) -O2 $(ROMCCFLAGS) $(INCLUDES) $(src)/arch/i386/init/bootblock.c -o $@
$(obj)/bootblock.elf: $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.o $(obj)/bootblock/ldscript.ld
@printf " LINK $(subst $(obj)/,,$(@))\n"
diff --git a/src/arch/i386/init/bootblock.c b/src/arch/i386/init/bootblock.c
index eea0198d00..3cafef58f3 100644
--- a/src/arch/i386/init/bootblock.c
+++ b/src/arch/i386/init/bootblock.c
@@ -1,24 +1,46 @@
+#if CONFIG_LOGICAL_CPUS && \
+ (defined(CONFIG_BOOTBLOCK_NORTHBRIDGE_INIT) || defined(CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT))
+#include <cpu/x86/lapic/boot_cpu.c>
+#else
+#define boot_cpu(x) 1
+#endif
+
+#ifdef CONFIG_BOOTBLOCK_NORTHBRIDGE_INIT
+#include CONFIG_BOOTBLOCK_NORTHBRIDGE_INIT
+#else
+static void bootblock_northbridge_init(void) { }
+#endif
+#ifdef CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT
+#include CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT
+#else
+static void bootblock_southbridge_init(void) { }
+#endif
+
static unsigned long findstage(char* target)
{
unsigned long entry;
asm volatile (
"mov $1f, %%esp\n\t"
"jmp walkcbfs\n\t"
- "1:\n\t" : "=a" (entry) : "S" (target) : "ebx", "ecx", "edx", "edi", "ebp", "esp");
+ "1:\n\t" : "=a" (entry) : "S" (target) : "ebx", "ecx", "edi", "esp");
return entry;
}
-static void call(unsigned long addr)
+static void call(unsigned long addr, unsigned long bist)
{
- asm volatile ("jmp %0\n\t" : : "r" (addr));
+ asm volatile ("jmp %0\n\t" : : "r" (addr), "a" (bist));
}
-static void main(void)
+static void main(unsigned long bist)
{
+ if (boot_cpu()) {
+ bootblock_northbridge_init();
+ bootblock_southbridge_init();
+ }
const char* target1 = "fallback/romstage";
unsigned long entry;
entry = findstage(target1);
- if (entry) call(entry);
+ if (entry) call(entry, bist);
asm volatile ("1:\n\thlt\n\tjmp 1b\n\t");
}
diff --git a/src/arch/i386/lib/walkcbfs.S b/src/arch/i386/lib/walkcbfs.S
index aba0453d1f..d043af5690 100644
--- a/src/arch/i386/lib/walkcbfs.S
+++ b/src/arch/i386/lib/walkcbfs.S
@@ -25,18 +25,9 @@
input %esi: filename
input %esp: return address (not pointer to return address!)
output %eax: entry point
- clobbers %ebx, %ecx, %edx, %edi, %ebp
+ clobbers %ebx, %ecx, %edi
*/
walkcbfs:
- mov %esi, %ebp /* stash away filename pointer */
- mov $0, %edx
-1:
- cmpb $0, (%edx,%esi)
- jz 2f
- add $1, %edx
- jmp 1b
-2:
- add $1, %edx
mov CBFS_HEADER_PTR, %eax
mov CBFS_HEADER_ROMSIZE(%eax), %ecx
bswap %ecx
@@ -45,15 +36,20 @@ walkcbfs:
mov CBFS_HEADER_OFFSET(%eax), %ecx
bswap %ecx
add %ecx, %ebx
- mov CBFS_HEADER_ALIGN(%eax), %eax
- bswap %eax
- sub $1, %eax
+ /* determine filename length */
+ mov $0, %eax
+1:
+ cmpb $0, (%eax,%esi)
+ jz 2f
+ add $1, %eax
+ jmp 1b
+2:
+ add $1, %eax
walker:
- mov %ebp, %esi
mov %ebx, %edi
add $CBFS_FILE_STRUCTSIZE, %edi /* edi = address of first byte after struct cbfs_file */
- mov %edx, %ecx
+ mov %eax, %ecx
repe cmpsb
# zero flag set if strings are equal
jnz tryharder
@@ -67,21 +63,29 @@ walker:
jmp *%esp
tryharder:
+ sub %ebx, %edi /* edi = # of walked bytes */
+ sub %edi, %esi /* esi = start of filename */
+
+ /* ebx = ecx = (current+offset+len+ALIGN-1) & ~(ALIGN-1) */
mov CBFS_FILE_OFFSET(%ebx), %ecx
bswap %ecx
add %ebx, %ecx
mov CBFS_FILE_LEN(%ebx), %edi
bswap %edi
add %edi, %ecx
- add %eax, %ecx
- mov %eax, %edi
+ mov CBFS_HEADER_PTR, %ebx
+ mov CBFS_HEADER_ALIGN(%ebx), %ebx
+ bswap %ebx
+ sub $1, %ebx
+ add %ebx, %ecx
+ mov %ebx, %edi
not %edi
and %edi, %ecx
mov %ecx, %ebx
/* look if we should exit */
- mov CBFS_HEADER_PTR, %esi
- mov CBFS_HEADER_ROMSIZE(%esi), %ecx
+ mov CBFS_HEADER_PTR, %ecx
+ mov CBFS_HEADER_ROMSIZE(%ecx), %ecx
bswap %ecx
not %ecx
add $1, %ecx