From c75eba3b4140187cd0d9bd8049f5df4c49b6889b Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@pollux.(none)>
Date: Thu, 1 Dec 2005 02:15:07 +0100
Subject: [PATCH] Fix U-Boot compilation for MIPS boards using ELDK 4.0

---
 CHANGELOG          |  2 ++
 common/cmd_ide.c   |  2 +-
 cpu/mips/config.mk |  2 +-
 cpu/mips/start.S   | 31 ++++++++++++++++++-------------
 lib_mips/board.c   | 18 +++++++-----------
 5 files changed, 29 insertions(+), 26 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 3213a89255..3f31d86e19 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,8 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* Fix U-Boot compilation for MIPS boards using ELDK 4.0
+
 * Add support for TQM8541/8555 boards, TQM85xx support reworked:
   - Support for TQM8541/8555 boards added.
   - Complete rework of TQM8540/8560 support.
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index 6663dea2f4..b67d35a5a4 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -49,7 +49,7 @@
 #include <asm/io.h>
 #ifdef __MIPS__
 /* Macros depend on this variable */
-static unsigned long mips_io_port_base = 0;
+unsigned long mips_io_port_base = 0;
 #endif
 #endif
 
diff --git a/cpu/mips/config.mk b/cpu/mips/config.mk
index fd10747aa3..c357615c03 100644
--- a/cpu/mips/config.mk
+++ b/cpu/mips/config.mk
@@ -26,7 +26,7 @@ MIPSFLAGS=$(shell \
 if [ "$v" -lt "14" ]; then \
 	echo "-mcpu=4kc"; \
 else \
-	echo "-march=4kc -mtune=4kc -Wa,-mips_allow_branch_to_undefined"; \
+	echo "-march=4kc -mtune=4kc"; \
 fi)
 
 ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
diff --git a/cpu/mips/start.S b/cpu/mips/start.S
index ff105a4184..e91e2137d7 100644
--- a/cpu/mips/start.S
+++ b/cpu/mips/start.S
@@ -234,21 +234,34 @@ reset:
 	li	t0, CONF_CM_UNCACHED
 	mtc0	t0, CP0_CONFIG
 
+	/* Initialize GOT pointer.
+	*/
+	bal     1f
+	nop
+	.word   _GLOBAL_OFFSET_TABLE_
+	1:
+	move    gp, ra
+	lw      t1, 0(ra)
+	move	gp, t1
+
 #ifdef CONFIG_INCA_IP
 	/* Disable INCA-IP Watchdog.
 	 */
-	bal	disable_incaip_wdt
+	la      t9, disable_incaip_wdt
+	jalr    t9
 	nop
 #endif
 
 	/* Initialize any external memory.
 	 */
-	bal	lowlevel_init
+	la      t9, lowlevel_init
+	jalr    t9
 	nop
 
 	/* Initialize caches...
 	 */
-	bal	mips_cache_reset
+	la      t9, mips_cache_reset
+	jalr    t9
 	nop
 
 	/* ... and enable them.
@@ -260,21 +273,13 @@ reset:
 	/* Set up temporary stack.
 	 */
 	li	a0, CFG_INIT_SP_OFFSET
-	bal	mips_cache_lock
+	la      t9, mips_cache_lock
+	jalr    t9
 	nop
 
 	li	t0, CFG_SDRAM_BASE + CFG_INIT_SP_OFFSET
 	la	sp, 0(t0)
 
-	/* Initialize GOT pointer.
-	 */
-	bal	1f
-	nop
-	.word	_GLOBAL_OFFSET_TABLE_ - 1f + 4
-1:
-	move	gp, ra
-	lw	t1, 0(ra)
-	add	gp, t1
 	la	t9, board_init_f
 	j	t9
 	nop
diff --git a/lib_mips/board.c b/lib_mips/board.c
index 839911be81..5dfdf90d6c 100644
--- a/lib_mips/board.c
+++ b/lib_mips/board.c
@@ -29,6 +29,8 @@
 #include <net.h>
 #include <environment.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
       (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
     defined(CFG_ENV_IS_IN_NVRAM)
@@ -66,8 +68,6 @@ static ulong mem_malloc_brk;
  */
 static void mem_malloc_init (void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
 
 	mem_malloc_end = dest_addr;
@@ -94,8 +94,6 @@ void *sbrk (ptrdiff_t increment)
 
 static int init_func_ram (void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 #ifdef	CONFIG_BOARD_TYPES
 	int board_type = gd->board_type;
 #else
@@ -127,8 +125,6 @@ static void display_flash_config(ulong size)
 
 static int init_baudrate (void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	uchar tmp[64];	/* long enough for environment variables */
 	int i = getenv_r ("baudrate", tmp, sizeof (tmp));
 
@@ -180,12 +176,11 @@ init_fnc_t *init_sequence[] = {
 
 void board_init_f(ulong bootflag)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	gd_t gd_data, *id;
 	bd_t *bd;
 	init_fnc_t **init_fnc_ptr;
 	ulong addr, addr_sp, len = (ulong)&uboot_end - CFG_MONITOR_BASE;
+	ulong *s;
 #ifdef CONFIG_PURPLE
 	void copy_code (ulong);
 #endif
@@ -262,8 +257,10 @@ void board_init_f(ulong bootflag)
 	 */
 	addr_sp -= 16;
 	addr_sp &= ~0xF;
-	*((ulong *) addr_sp)-- = 0;
-	*((ulong *) addr_sp)-- = 0;
+	s = (ulong *)addr_sp;
+	*s-- = 0;
+	*s-- = 0;
+	addr_sp = (ulong)s;
 	debug ("Stack Pointer at: %08lx\n", addr_sp);
 
 	/*
@@ -298,7 +295,6 @@ void board_init_f(ulong bootflag)
 
 void board_init_r (gd_t *id, ulong dest_addr)
 {
-	DECLARE_GLOBAL_DATA_PTR;
 	cmd_tbl_t *cmdtp;
 	ulong size;
 	extern void malloc_bin_reloc (void);
-- 
2.25.1