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-rw-r--r--src/cpu/intel/model_6ex/cache_as_ram.inc136
-rw-r--r--src/cpu/intel/model_6ex/cache_as_ram_disable.c89
-rw-r--r--src/cpu/intel/model_6ex/cache_as_ram_post.c125
-rw-r--r--src/mainboard/kontron/986lcd-m/romstage.c4
-rw-r--r--src/mainboard/roda/rk886ex/romstage.c3
5 files changed, 135 insertions, 222 deletions
diff --git a/src/cpu/intel/model_6ex/cache_as_ram.inc b/src/cpu/intel/model_6ex/cache_as_ram.inc
index ad0567e102..0c6091a908 100644
--- a/src/cpu/intel/model_6ex/cache_as_ram.inc
+++ b/src/cpu/intel/model_6ex/cache_as_ram.inc
@@ -137,12 +137,142 @@ clear_mtrrs:
post_code(0x23)
- call stage1_main
+ /* Call romstage.c main function */
+ call main
post_code(0x2f)
-error:
+
+ post_code(0x30)
+
+ /* Disable Cache */
+ movl %cr0, %eax
+ orl $(1 << 30), %eax
+ movl %eax, %cr0
+
+ post_code(0x31)
+
+ /* Disable MTRR */
+ movl $MTRRdefType_MSR, %ecx
+ rdmsr
+ andl $(~(1 << 11)), %eax
+ wrmsr
+
+ post_code(0x31)
+
+ invd
+#if 0
+ xorl %eax, %eax
+ xorl %edx, %edx
+ movl $MTRRphysBase_MSR(0), %ecx
+ wrmsr
+ movl $MTRRphysMask_MSR(0), %ecx
+ wrmsr
+ movl $MTRRphysBase_MSR(1), %ecx
+ wrmsr
+ movl $MTRRphysMask_MSR(1), %ecx
+ wrmsr
+#endif
+
+ post_code(0x33)
+
+#undef CLEAR_FIRST_1M_RAM
+#ifdef CLEAR_FIRST_1M_RAM
+ post_code(0x34)
+ /* Enable Write Combining and Speculative Reads for the first 1MB */
+ movl $MTRRphysBase_MSR(0), %ecx
+ movl $(0x00000000 | MTRR_TYPE_WRCOMB), %eax
+ xorl %edx, %edx
+ wrmsr
+ movl $MTRRphysMask_MSR(0), %ecx
+ movl $(~(1024*1024 -1) | (1 << 11)), %eax
+ movl $0x0000000f, %edx // 36bit address space
+ wrmsr
+ post_code(0x35)
+#endif
+
+ /* Enable Cache */
+ movl %cr0, %eax
+ andl $~( (1 << 30) | (1 << 29) ), %eax
+ movl %eax, %cr0
+
+
+ post_code(0x36)
+#ifdef CLEAR_FIRST_1M_RAM
+
+ /* Clear first 1MB of RAM */
+ movl $0x00000000, %edi
+ cld
+ xorl %eax, %eax
+ movl $((1024*1024) / 4), %ecx
+ rep stosl
+
+ post_code(0x37)
+#endif
+
+ /* Disable Cache */
+ movl %cr0, %eax
+ orl $(1 << 30), %eax
+ movl %eax, %cr0
+
+ post_code(0x38)
+
+ /* Enable Write Back and Speculative Reads for the first 1MB */
+ movl $MTRRphysBase_MSR(0), %ecx
+ movl $(0x00000000 | MTRR_TYPE_WRBACK), %eax
+ xorl %edx, %edx
+ wrmsr
+ movl $MTRRphysMask_MSR(0), %ecx
+ movl $(~(1024*1024 -1) | (1 << 11)), %eax
+ movl $0x0000000f, %edx // 36bit address space
+ wrmsr
+
+ post_code(0x39)
+
+ /* And Enable Cache again after setting MTRRs */
+ movl %cr0, %eax
+ andl $~( (1 << 30) | (1 << 29) ), %eax
+ movl %eax, %cr0
+
+ post_code(0x3a)
+
+ /* Enable MTRR */
+ movl $MTRRdefType_MSR, %ecx
+ rdmsr
+ orl $(1 << 11), %eax
+ wrmsr
+
+ post_code(0x3b)
+
+ /* Invalidate the cache again */
+ invd
+
+
+ /* clear boot_complete flag */
+ xorl %ebp, %ebp
+__main:
+ post_code(0x11)
+ cld /* clear direction flag */
+
+ movl %ebp, %esi
+
+ /* For now: use CONFIG_RAMBASE + 1MB - 64K (counting downwards) as stack. This
+ * makes sure that we stay completely within the 1M-64K of memory that we
+ * preserve for suspend/resume.
+ */
+
+#ifndef HIGH_MEMORY_SAVE
+#warning Need a central place for HIGH_MEMORY_SAVE
+#define HIGH_MEMORY_SAVE ( (1024 - 64) * 1024 )
+#endif
+ movl $(CONFIG_RAMBASE + HIGH_MEMORY_SAVE), %esp
+ movl %esp, %ebp
+ pushl %esi
+ call copy_and_run
+
+.Lhlt:
+ post_code(0xee)
hlt
- jmp error
+ jmp .Lhlt
mtrr_table:
/* Fixed MTRRs */
diff --git a/src/cpu/intel/model_6ex/cache_as_ram_disable.c b/src/cpu/intel/model_6ex/cache_as_ram_disable.c
deleted file mode 100644
index f859336adf..0000000000
--- a/src/cpu/intel/model_6ex/cache_as_ram_disable.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- *
- * 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
- */
-
-#include <arch/stages.h>
-
-/* called from assembler code */
-void stage1_main(unsigned long bist);
-
-/* from romstage.c */
-void real_main(unsigned long bist);
-
-void stage1_main(unsigned long bist)
-{
- unsigned int cpu_reset = 0;
-
- real_main(bist);
-
- /* No servicable parts below this line .. */
-#ifdef CAR_DEBUG
- /* Check value of esp to verify if we have enough rom for stack in Cache as RAM */
- unsigned v_esp;
- __asm__ volatile (
- "movl %%esp, %0\n"
- : "=a" (v_esp)
- );
- printk(BIOS_SPEW, "v_esp=%08x\n", v_esp);
-#endif
-
- printk(BIOS_SPEW, "cpu_reset = %08x\n", cpu_reset);
- printk(BIOS_SPEW, "No cache as ram now - ");
-
- /* store cpu_reset to ebx */
- __asm__ volatile (
- "movl %0, %%ebx\n\t"
- ::"a" (cpu_reset)
- );
-
-#undef CLEAR_FIRST_1M_RAM
-#include "cache_as_ram_post.c"
-
- /* For now: use rambase + 1MB - 64K (counting downwards) as stack. This
- * makes sure that we stay completely within the 1M of memory we
- * preserve with the memcpy above.
- */
-
-#ifndef HIGH_MEMORY_SAVE
-#define HIGH_MEMORY_SAVE ( (1024 - 64) * 1024 )
-#endif
-
- __asm__ volatile (
- "movl %0, %%ebp\n"
- "movl %0, %%esp\n"
- :: "a" (CONFIG_RAMBASE + HIGH_MEMORY_SAVE)
- );
-
- {
- unsigned new_cpu_reset;
-
- /* get back cpu_reset from ebx */
- __asm__ volatile (
- "movl %%ebx, %0\n"
- :"=a" (new_cpu_reset)
- );
-
- /* Copy and execute coreboot_ram */
- copy_and_run(new_cpu_reset);
- }
-
- /* We will not return */
- printk(BIOS_DEBUG, "sorry. parachute did not open.\n");
-}
diff --git a/src/cpu/intel/model_6ex/cache_as_ram_post.c b/src/cpu/intel/model_6ex/cache_as_ram_post.c
deleted file mode 100644
index fd4eb34ef9..0000000000
--- a/src/cpu/intel/model_6ex/cache_as_ram_post.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2008 coresystems GmbH
- *
- * 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
- */
-
- __asm__ volatile (
-
- "movb $0x30, %al\noutb %al, $0x80\n"
-
- /* Disable Cache */
- "movl %cr0, %eax\n"
- "orl $(1 << 30), %eax\n"
- "movl %eax, %cr0\n"
-
- "movb $0x31, %al\noutb %al, $0x80\n"
-
- /* Disable MTRR */
- "movl $MTRRdefType_MSR, %ecx\n"
- "rdmsr\n"
- "andl $(~(1 << 11)), %eax\n"
- "wrmsr\n"
-
- "movb $0x32, %al\noutb %al, $0x80\n"
-
- "invd\n"
-#if 0
- "xorl %eax, %eax\n"
- "xorl %edx, %edx\n"
- "movl $MTRRphysBase_MSR(0), %ecx\n"
- "wrmsr\n"
- "movl $MTRRphysMask_MSR(0), %ecx\n"
- "wrmsr\n"
- "movl $MTRRphysBase_MSR(1), %ecx\n"
- "wrmsr\n"
- "movl $MTRRphysMask_MSR(1), %ecx\n"
- "wrmsr\n"
-#endif
-
- "movb $0x33, %al\noutb %al, $0x80\n"
-#ifdef CLEAR_FIRST_1M_RAM
- "movb $0x34, %al\noutb %al, $0x80\n"
- /* Enable Write Combining and Speculative Reads for the first 1MB */
- "movl $MTRRphysBase_MSR(0), %ecx\n"
- "movl $(0x00000000 | MTRR_TYPE_WRCOMB), %eax\n"
- "xorl %edx, %edx\n"
- "wrmsr\n"
- "movl $MTRRphysMask_MSR(0), %ecx\n"
- "movl $(~(1024*1024 -1) | (1 << 11)), %eax\n"
- "movl $0x0000000f, %edx\n" // 36bit address space
- "wrmsr\n"
- "movb $0x35, %al\noutb %al, $0x80\n"
-#endif
-
- /* Enable Cache */
- "movl %cr0, %eax\n"
- "andl $~( (1 << 30) | (1 << 29) ), %eax\n"
- "movl %eax, %cr0\n"
-
- "movb $0x36, %al\noutb %al, $0x80\n"
-#ifdef CLEAR_FIRST_1M_RAM
-
- /* Clear first 1MB of RAM */
- "movl $0x00000000, %edi\n"
- "cld\n"
- "xorl %eax, %eax\n"
- "movl $((1024*1024) / 4), %ecx\n"
- "rep stosl\n"
-
- "movb $0x37, %al\noutb %al, $0x80\n"
-#endif
-
- /* Disable Cache */
- "movl %cr0, %eax\n"
- "orl $(1 << 30), %eax\n"
- "movl %eax, %cr0\n"
-
- "movb $0x38, %al\noutb %al, $0x80\n"
-
- /* Enable Write Back and Speculative Reads for the first 1MB */
- "movl $MTRRphysBase_MSR(0), %ecx\n"
- "movl $(0x00000000 | MTRR_TYPE_WRBACK), %eax\n"
- "xorl %edx, %edx\n"
- "wrmsr\n"
- "movl $MTRRphysMask_MSR(0), %ecx\n"
- "movl $(~(1024*1024 -1) | (1 << 11)), %eax\n"
- "movl $0x0000000f, %edx\n" // 36bit address space
- "wrmsr\n"
-
- "movb $0x39, %al\noutb %al, $0x80\n"
-
- /* And Enable Cache again after setting MTRRs */
- "movl %cr0, %eax\n"
- "andl $~( (1 << 30) | (1 << 29) ), %eax\n"
- "movl %eax, %cr0\n"
-
- "movb $0x3a, %al\noutb %al, $0x80\n"
-
- /* Enable MTRR */
- "movl $MTRRdefType_MSR, %ecx\n"
- "rdmsr\n"
- "orl $(1 << 11), %eax\n"
- "wrmsr\n"
-
- "movb $0x3b, %al\noutb %al, $0x80\n"
-
- /* Invalidate the cache again */
- "invd\n"
- "movb $0x3c, %al\noutb %al, $0x80\n"
- );
diff --git a/src/mainboard/kontron/986lcd-m/romstage.c b/src/mainboard/kontron/986lcd-m/romstage.c
index 247b5eb9af..d29b23bde7 100644
--- a/src/mainboard/kontron/986lcd-m/romstage.c
+++ b/src/mainboard/kontron/986lcd-m/romstage.c
@@ -359,9 +359,7 @@ static void early_ich7_init(void)
//
#include "lib/cbmem.c"
-#include "cpu/intel/model_6ex/cache_as_ram_disable.c"
-
-void real_main(unsigned long bist)
+void main(unsigned long bist)
{
u32 reg32;
int boot_mode = 0;
diff --git a/src/mainboard/roda/rk886ex/romstage.c b/src/mainboard/roda/rk886ex/romstage.c
index 28f56a89f3..c888871e5f 100644
--- a/src/mainboard/roda/rk886ex/romstage.c
+++ b/src/mainboard/roda/rk886ex/romstage.c
@@ -272,9 +272,8 @@ static void init_artec_dongle(void)
// __PRE_RAM__ to determine whether we're in ram init stage (stage 1)
//
#include "lib/cbmem.c"
-#include "cpu/intel/model_6ex/cache_as_ram_disable.c"
-void real_main(unsigned long bist)
+void main(unsigned long bist)
{
u32 reg32;
int boot_mode = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 17:05:52 +0000