intel/quark: Remove extra steps on entry to romstage

Change-Id: I9297d5b4f7c8ed703fb8772739531cdd7d5ca5f0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34965
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/soc/intel/quark/include/soc/romstage.h b/src/soc/intel/quark/include/soc/romstage.h
index c7de080..29f934e 100644
--- a/src/soc/intel/quark/include/soc/romstage.h
+++ b/src/soc/intel/quark/include/soc/romstage.h
@@ -25,7 +25,6 @@
 #include <soc/car.h>
 #include <soc/reg_access.h>
 
-asmlinkage void car_stage_c_entry(void);
 void clear_smi_and_wake_events(void);
 void disable_rom_shadow(void);
 void *locate_rmu_file(size_t *rmu_file_len);
diff --git a/src/soc/intel/quark/romstage/Makefile.inc b/src/soc/intel/quark/romstage/Makefile.inc
index 742a4fa..be5b320 100644
--- a/src/soc/intel/quark/romstage/Makefile.inc
+++ b/src/soc/intel/quark/romstage/Makefile.inc
@@ -14,7 +14,6 @@
 #
 
 romstage-y += car.c
-romstage-y += car_stage_entry.S
 ifeq ($(CONFIG_PLATFORM_USES_FSP2_0),y)
 romstage-$(CONFIG_DISPLAY_UPD_DATA) += debug.c
 romstage-$(CONFIG_PLATFORM_USES_FSP2_0) += fsp2_0.c
diff --git a/src/soc/intel/quark/romstage/car_stage_entry.S b/src/soc/intel/quark/romstage/car_stage_entry.S
deleted file mode 100644
index c9847ea..0000000
--- a/src/soc/intel/quark/romstage/car_stage_entry.S
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2000,2007 Ronald G. Minnich <rminnich@gmail.com>
- * Copyright (C) 2007-2008 coresystems GmbH
- * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC.
- * Copyright (C) 2015-2016 Intel Corporation
- *
- * 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.
- *
- * Replacement for cache_as_ram.inc when using the C environment boot block.
- */
-
-#include <rules.h>
-#include <soc/sd.h>
-
-	.section ".text"
-	.global car_stage_entry
-
-car_stage_entry:
-
-	/* Enter the C code */
-	call	car_stage_c_entry
-
-	/* The code should never reach this point */
-	movb	$0x69, %ah
-	jmp	.Lhlt
-
-#----------------------------------------------------------------------------
-#
-# Procedure:	.Lhlt
-#
-# Input:	ah - Upper 8-bits of POST code
-#		al - Lower 8-bits of POST code
-#
-# Description:
-#		Infinite loop displaying alternating POST code values
-#
-#----------------------------------------------------------------------------
-
-#define FLASH_DELAY	0x1000	/* I/O delay between post codes on failure */
-#define POST_DELAY	0x50
-
-.Lhlt:
-	xchg	%al, %ah
-	mov	$POST_DELAY, %dh
-#if CONFIG(POST_IO)
-	outb	%al, $CONFIG_POST_IO_PORT
-#else
-	post_code(POST_DEAD_CODE)
-#endif
-.flash_setup:
-	movl	$FLASH_DELAY, %ecx
-.flash_delay:
-	outb	%al, $0xED
-	loop	.flash_delay
-#if CONFIG(ENABLE_DEBUG_LED)
-	movl	$SD_HOST_CTRL, %ebx
-	movb	0(%ebx), %dl
-	xorb	$1, %dl
-	movb	%dl, 0(%ebx)
-#endif /* CONFIG_ENABLE_DEBUG_LED */
-	decb	%dh
-	jnz	.flash_setup
-	jmp	.Lhlt
diff --git a/src/soc/intel/quark/romstage/fsp2_0.c b/src/soc/intel/quark/romstage/fsp2_0.c
index 57e35ee..b3f3ee8 100644
--- a/src/soc/intel/quark/romstage/fsp2_0.c
+++ b/src/soc/intel/quark/romstage/fsp2_0.c
@@ -30,7 +30,7 @@
 
 static struct postcar_frame early_mtrrs;
 
-asmlinkage void car_stage_c_entry(void)
+asmlinkage void car_stage_entry(void)
 {
 	bool s3wake;