From a6a957849a0ad20323156ef2439b490306bd5e35 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Fri, 14 Nov 2014 18:18:25 -0700
Subject: [PATCH] x86: Factor out common values in the link script

Define the reset base in config.mk so that it does not need to be calculated
twice in the link script. Also tidy up the START_16 and RESET_VEC_LOC values
to fit with this new approach.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---
 arch/x86/cpu/config.mk  |  5 +++--
 arch/x86/cpu/u-boot.lds | 14 +++++++++-----
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/x86/cpu/config.mk b/arch/x86/cpu/config.mk
index f7b01d36e0..84aeaf3edc 100644
--- a/arch/x86/cpu/config.mk
+++ b/arch/x86/cpu/config.mk
@@ -12,5 +12,6 @@ PLATFORM_CPPFLAGS += -D__I386__ -Werror
 # DO NOT MODIFY THE FOLLOWING UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!
 LDPPFLAGS += -DRESET_SEG_START=0xffff0000
 LDPPFLAGS += -DRESET_SEG_SIZE=0x10000
-LDPPFLAGS += -DRESET_VEC_LOC=0xfff0
-LDPPFLAGS += -DSTART_16=0xf800
+LDPPFLAGS += -DRESET_VEC_LOC=0xfffffff0
+LDPPFLAGS += -DSTART_16=$(CONFIG_SYS_X86_START16)
+LDPPFLAGS += -DRESET_BASE="CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE)"
diff --git a/arch/x86/cpu/u-boot.lds b/arch/x86/cpu/u-boot.lds
index 124a361fc0..b0d8531a60 100644
--- a/arch/x86/cpu/u-boot.lds
+++ b/arch/x86/cpu/u-boot.lds
@@ -66,15 +66,19 @@ SECTIONS
 	/DISCARD/ : { *(.gnu*) }
 
 #ifdef CONFIG_X86_RESET_VECTOR
-
 	/*
 	 * The following expressions place the 16-bit Real-Mode code and
 	 * Reset Vector at the end of the Flash ROM
 	 */
-	. = START_16;
-	.start16 : AT (CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE + START_16)) { KEEP(*(.start16)); }
+	. = START_16 - RESET_SEG_START;
+	.start16 : AT (START_16) {
+		KEEP(*(.start16));
+	}
 
-	. = RESET_VEC_LOC;
-	.resetvec : AT (CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE + RESET_VEC_LOC)) { KEEP(*(.resetvec)); }
+	. = RESET_VEC_LOC - RESET_SEG_START;
+	.resetvec : AT (RESET_VEC_LOC) {
+		KEEP(*(.resetvec));
+	}
 #endif
+
 }
-- 
2.39.5