This patch changes C7 CAR code to be a single assembler file instead

of the ugly mixture it was before. It also enables CAR for all C7 boards

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5399 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

4 files changed, 136 insertions, 152 deletions

diff --git a/src/cpu/via/car/cache_as_ram.inc b/src/cpu/via/car/cache_as_ram.inc
index ba0fadfec5..7eb85333ac 100644
--- a/src/cpu/via/car/cache_as_ram.inc
+++ b/src/cpu/via/car/cache_as_ram.inc
@@ -63,6 +63,20 @@ clear_fixed_var_mtrr:
 	wrmsr
 
 	jmp	clear_fixed_var_mtrr
+
+fixed_mtrr_msr:
+	.long	0x250, 0x258, 0x259
+	.long	0x268, 0x269, 0x26A
+	.long	0x26B, 0x26C, 0x26D
+	.long	0x26E, 0x26F
+
+var_mtrr_msr:
+	.long	0x200, 0x201, 0x202, 0x203
+	.long	0x204, 0x205, 0x206, 0x207
+	.long	0x208, 0x209, 0x20A, 0x20B
+	.long	0x20C, 0x20D, 0x20E, 0x20F
+	.long	0x000 /* NULL, end of table */
+
 clear_fixed_var_mtrr_out:
 	/* MTRRPhysBase */
 	movl	$0x200, %ecx
@@ -163,17 +177,113 @@ testok:	movb $0x40,%al
 	/* We need to set ebp ? No need */
 	movl	%esp, %ebp
 	pushl	%eax  /* bist */
-	call	stage1_main
-	/* We will not go back */
+	call	main
+
+	/* 
+	 * TODO: Backup stack in CACHE_AS_RAM into MMX and SSE and after we
+	 *       get STACK up, we restore that. It is only needed if we
+	 *       want to go back.
+	 */
+	
+	/* We don't need cache as ram for now on */
+	/* disable cache */
+	movl    %cr0, %eax
+	orl    $(0x1<<30),%eax
+	movl    %eax, %cr0
+
+
+	/* Set the default memory type and disable fixed and enable variable MTRRs */
+	movl    $0x2ff, %ecx
+	//movl    $MTRRdefType_MSR, %ecx
+	xorl    %edx, %edx
+
+	/* Enable Variable and Disable Fixed MTRRs */
+	movl    $0x00000800, %eax
+	wrmsr
+
+	/* enable caching for first 1M using variable mtrr */
+	movl    $0x200, %ecx
+	xorl    %edx, %edx
+	movl     $(0 | 6), %eax
+	//movl     $(0 | MTRR_TYPE_WRBACK), %eax
+	wrmsr
+ 
+	/* enable cache for 0-7ffff, 80000-9ffff, e0000-fffff;
+	 * If 1M cacheable, then when S3 resume, there is stange color on
+	 * screen for 2 sec. suppose problem of a0000-dfffff and cache.
+	 * And in x86_setup_fixed_mtrrs()(mtrr.c), 0-256M is set cacheable.
+	 */
+
+	movl    $0x201, %ecx
+	movl    $0x0000000f, %edx /* AMD 40 bit 0xff*/
+ 	movl    $((~(( 0 + 0x80000) - 1)) | 0x800), %eax
+	wrmsr
+	
+	movl    $0x202, %ecx
+	xorl    %edx, %edx
+	movl     $(0x80000 | 6), %eax
+	orl     $(0 | 6), %eax
+	wrmsr
+
+	movl    $0x203, %ecx
+	movl    $0x0000000f, %edx /* AMD 40 bit 0xff*/
+ 	movl    $((~(( 0 + 0x20000) - 1)) | 0x800), %eax
+	wrmsr
+	
+	movl    $0x204, %ecx
+	xorl    %edx, %edx
+	movl     $(0xc0000 | 6), %eax
+	orl     $(0 | 6), %eax
+	wrmsr
+
+	movl    $0x205, %ecx
+	movl    $0x0000000f, %edx /* AMD 40 bit 0xff*/
+	movl    $((~(( 0 + 0x40000) - 1)) | 0x800), %eax
+	wrmsr        
+	
+	/* cache CONFIG_XIP_ROM_BASE-SIZE to speedup coreboot code */
+	movl    $0x206, %ecx
+	xorl    %edx, %edx
+	movl     $CONFIG_XIP_ROM_BASE,%eax
+	orl     $(0 | 6), %eax
+	wrmsr
+
+	movl    $0x207, %ecx
+	xorl    %edx, %edx
+	movl     $CONFIG_XIP_ROM_SIZE,%eax
+	decl	%eax
+	notl	%eax
+	orl     $(0 | 0x800), %eax
+	wrmsr
+
+	/* enable cache */
+	movl    %cr0, %eax
+	andl    $0x9fffffff,%eax
+	movl    %eax, %cr0
+	invd
+
+	/* clear boot_complete flag */
+	xorl	%ebp, %ebp
+__main:
+	post_code(0x11)
+	cld			/* clear direction flag */
+	
+	movl	%ebp, %esi
+
+	/* FIXME: These values might have to change for suspend-to-ram.
+	 * the 0x00400000 was chosen as this is a place in memory that
+	 * should exist in all contemporary configurations (ie. large
+	 * enough RAM), but doesn't collide with anything coreboot does.
+	 * Other than that, it's arbitrary.
+	 */
+
+	movl	$0x4000000, %esp
+	movl	%esp, %ebp
+	pushl %esi
+	call copy_and_run
+
+.Lhlt:	
+	post_code(0xee)
+	hlt
+	jmp	.Lhlt
 
-fixed_mtrr_msr:
-	.long	0x250, 0x258, 0x259
-	.long	0x268, 0x269, 0x26A
-	.long	0x26B, 0x26C, 0x26D
-	.long	0x26E, 0x26F
-var_mtrr_msr:
-	.long	0x200, 0x201, 0x202, 0x203
-	.long	0x204, 0x205, 0x206, 0x207
-	.long	0x208, 0x209, 0x20A, 0x20B
-	.long	0x20C, 0x20D, 0x20E, 0x20F
-	.long	0x000 /* NULL, end of table */
diff --git a/src/cpu/via/car/cache_as_ram.lds b/src/cpu/via/car/cache_as_ram.lds
deleted file mode 100644
index fc9b11291e..0000000000
--- a/src/cpu/via/car/cache_as_ram.lds
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 Carl-Daniel Hailfinger
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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
- */
-
-SECTIONS {
-	.init . : {
-		_init = .;
-		*(.init.text);
-		*(.init.rodata);
-		*(.init.rodata.*);
-		. = ALIGN(16);
-		_einit = .;
-	}
-}
diff --git a/src/cpu/via/car/cache_as_ram_post.c b/src/cpu/via/car/cache_as_ram_post.c
deleted file mode 100644
index 3c5c5e486b..0000000000
--- a/src/cpu/via/car/cache_as_ram_post.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 VIA Technologies, Inc.
- * (Written by Jason Zhao <jasonzhao@viatech.com.cn> for VIA)
- *
- * 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 (
-	/* 
-	FIXME : backup stack in CACHE_AS_RAM into mmx and sse and after we get STACK up, we restore that.
-		It is only needed if we want to go back
-	*/
-	
-        /* We don't need cache as ram for now on */
-        /* disable cache */
-        "movl    %cr0, %eax\n\t"
-        "orl    $(0x1<<30),%eax\n\t"
-        "movl    %eax, %cr0\n\t"
-
-
-        /* Set the default memory type and disable fixed and enable variable MTRRs */
-        "movl    $0x2ff, %ecx\n\t"
-	//"movl    $MTRRdefType_MSR, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        /* Enable Variable and Disable Fixed MTRRs */
-        "movl    $0x00000800, %eax\n\t"
-        "wrmsr\n\t"
-
-        /* enable caching for first 1M using variable mtrr */
-        "movl    $0x200, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $(0 | 6), %eax\n\t"
-	//"movl     $(0 | MTRR_TYPE_WRBACK), %eax\n\t"
-        "wrmsr\n\t"
- 
-/*Jasonzhao@viatech.com.cn, I enable cache for 0-7ffff, 80000-9ffff, e0000-fffff;
-if 1M cacheable,then when S3 resume, there is stange color on screen for 2 sec. 
-suppose problem of a0000-dfffff and cache .
-and in x86_setup_fixed_mtrrs()(mtrr.c), 0-256M is set cacheable.*/
-
-        "movl    $0x201, %ecx\n\t"
-        "movl    $0x0000000f, %edx\n\t" /* AMD 40 bit 0xff*/
- 	 			"movl    $((~(( 0 + 0x80000) - 1)) | 0x800), %eax\n\t"
-        "wrmsr\n\t"
-        
-        "movl    $0x202, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $(0x80000 | 6), %eax\n\t"
-        "orl     $(0 | 6), %eax\n\t"
-        "wrmsr\n\t"
-
-        "movl    $0x203, %ecx\n\t"
-        "movl    $0x0000000f, %edx\n\t" /* AMD 40 bit 0xff*/
- 	 			"movl    $((~(( 0 + 0x20000) - 1)) | 0x800), %eax\n\t"
-        "wrmsr\n\t"
-        
-        "movl    $0x204, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $(0xc0000 | 6), %eax\n\t"
-        "orl     $(0 | 6), %eax\n\t"
-        "wrmsr\n\t"
-
-        "movl    $0x205, %ecx\n\t"
-        "movl    $0x0000000f, %edx\n\t" /* AMD 40 bit 0xff*/
- 	 			"movl    $((~(( 0 + 0x40000) - 1)) | 0x800), %eax\n\t"
-        "wrmsr\n\t"        
-        
-	/*jasonzhao@viatech.com.cn add this 2008-11-27, cache CONFIG_XIP_ROM_BASE-SIZE to speedup the coreboot code*/
-	 			"movl    $0x206, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $CONFIG_XIP_ROM_BASE,%eax\n\t"
-        "orl     $(0 | 6), %eax\n\t"
-        "wrmsr\n\t"
-
-	 			"movl    $0x207, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $CONFIG_XIP_ROM_SIZE,%eax\n\t"
-        "decl	%eax\n\t"
-        "notl	%eax\n\t"
-        "orl     $(0 | 0x800), %eax\n\t"
-        "wrmsr\n\t"
-
-        /* enable cache */
-        "movl    %cr0, %eax\n\t"
-        "andl    $0x9fffffff,%eax\n\t"
-        "movl    %eax, %cr0\n\t"
-	 			"invd\n\t"
-
-	/* FIXME: These values might have to change for suspend-to-ram.
-	   the 0x00400000 was chosen as this is a place in memory that
-	   should exist in all contemporary configurations (ie. large
-	   enough RAM), but doesn't collide with anything coreboot does.
-	   Other than that, it's arbitrary. */
-	"movl	$0x00400000,%esp\n\t"
-	"movl	%esp,%ebp\n\t"
-        );
diff --git a/src/cpu/via/model_c7/Kconfig b/src/cpu/via/model_c7/Kconfig
index 530898cf6e..7790b95ee8 100644
--- a/src/cpu/via/model_c7/Kconfig
+++ b/src/cpu/via/model_c7/Kconfig
@@ -3,3 +3,16 @@ config CPU_VIA_C7
 	select UDELAY_TSC
 	select MMX
 	select SSE2
+	select USE_PRINTK_IN_CAR
+
+config DCACHE_RAM_BASE
+	hex
+	default 0xffef0000
+	depends on CPU_VIA_C7
+
+config DCACHE_RAM_SIZE
+	hex
+	default 0x8000
+	depends on CPU_VIA_C7
+
+