m68k: add malloc memory for early malloc

To use serial uclass and DM, CONFIG_SYS_MALLOC_F must be used.
So CONFIG_SYS_GENERIC_GLOBAL_DATA has been undefined and
call to board_init_f_mem() is added for all cpu's.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Acked-by: Simon Glass <sjg@chromium.org>

9 files changed, 147 insertions, 39 deletions

diff --git a/arch/m68k/cpu/mcf5227x/start.S b/arch/m68k/cpu/mcf5227x/start.S
index 23024f9..13c036f 100644
--- a/arch/m68k/cpu/mcf5227x/start.S
+++ b/arch/m68k/cpu/mcf5227x/start.S
@@ -372,14 +372,29 @@ _start:
 	move.l %d0, (%a1)
 	move.l %d0, (%a2)
 
-	/* set stackpointer to end of internal ram to get some stackspace for
-	   the first c-code */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l %sp@-
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
+
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	bsr	board_init_f_alloc_reserve
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
 
-	move.l #__got_start, %a5	/* put relocation table address to a5 */
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	bsr     board_init_f_init_reserve
 
 	bsr cpu_init_f			/* run low-level CPU init code (from flash) */
+	clr.l   %sp@-
 	bsr board_init_f		/* run low-level board init code (from flash) */
 
 	/* board_init_f() does not return */
diff --git a/arch/m68k/cpu/mcf523x/start.S b/arch/m68k/cpu/mcf523x/start.S
index 1702f98..3aa4dd6 100644
--- a/arch/m68k/cpu/mcf523x/start.S
+++ b/arch/m68k/cpu/mcf523x/start.S
@@ -134,17 +134,34 @@ _start:
 	move.l %d0, (%a1)
 	move.l %d0, (%a2)
 
-	/* set stackpointer to end of internal ram to get some stackspace for the
-	   first c-code */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l %sp@-
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
 
-	move.l #__got_start, %a5	/* put relocation table address to a5 */
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	move.l	#board_init_f_alloc_reserve, %a1
+	jsr	(%a1)
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	move.l	#board_init_f_init_reserve, %a1
+	jsr	(%a1)
 
 	/* run low-level CPU init code (from flash) */
 	move.l #cpu_init_f, %a1
 	jsr (%a1)
 	/* run low-level board init code (from flash) */
+	clr.l   %sp@-
 	move.l #board_init_f, %a1
 	jsr (%a1)
 
diff --git a/arch/m68k/cpu/mcf52x2/start.S b/arch/m68k/cpu/mcf52x2/start.S
index 4af691f..a048884 100644
--- a/arch/m68k/cpu/mcf52x2/start.S
+++ b/arch/m68k/cpu/mcf52x2/start.S
@@ -192,16 +192,34 @@ _after_flashbar_copy:
 	move.l %d0, (%a1)
 	move.l %d0, (%a2)
 
-	/* set stackpointer to end of internal ram to get some stackspace for the first c-code */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l %sp@-
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
 
-	move.l #__got_start, %a5		/* put relocation table address to a5 */
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	move.l	#board_init_f_alloc_reserve, %a1
+	jsr (%a1)
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	move.l	#board_init_f_init_reserve, %a1
+	jsr (%a1)
 
 	/* run low-level CPU init code (from flash) */
 	move.l #cpu_init_f, %a1
 	jsr (%a1)
 	/* run low-level board init code (from flash) */
+	clr.l   %sp@-
 	move.l #board_init_f, %a1
 	jsr (%a1)
 
diff --git a/arch/m68k/cpu/mcf530x/cpu_init.c b/arch/m68k/cpu/mcf530x/cpu_init.c
index 80dc239..b09eed8 100644
--- a/arch/m68k/cpu/mcf530x/cpu_init.c
+++ b/arch/m68k/cpu/mcf530x/cpu_init.c
@@ -142,7 +142,7 @@ int cpu_init_r(void)
 	return 0;
 }
 
-void uart_port_conf(void)
+void uart_port_conf(int port)
 {
 }
 
diff --git a/arch/m68k/cpu/mcf530x/start.S b/arch/m68k/cpu/mcf530x/start.S
index 097958a..ca8bb32 100644
--- a/arch/m68k/cpu/mcf530x/start.S
+++ b/arch/m68k/cpu/mcf530x/start.S
@@ -126,21 +126,32 @@ _start:
 	move.l	%d0, (%a1)
 	move.l	%d0, (%a2)
 
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
+
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
 	/*
-	 * set stackpointer to internal sram end - 80
-	 * (global data struct size + some bytes)
-	 * get some stackspace for the first c-code,
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
 	 */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l   %sp@-
+	move.l	%sp, -(%sp)
+	bsr	board_init_f_alloc_reserve
 
-	/* put relocation table address to a5 */
-	move.l #__got_start, %a5
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	bsr     board_init_f_init_reserve
 
 	/* run low-level CPU init code (from flash) */
 	bsr cpu_init_f
 
 	/* run low-level board init code (from flash) */
+	clr.l   %sp@-
 	bsr board_init_f
 
 	/* board_init_f() does not return */
diff --git a/arch/m68k/cpu/mcf532x/start.S b/arch/m68k/cpu/mcf532x/start.S
index 131ad6e..f25bc54 100644
--- a/arch/m68k/cpu/mcf532x/start.S
+++ b/arch/m68k/cpu/mcf532x/start.S
@@ -148,17 +148,34 @@ _start:
 	move.l %d0, (%a1)
 	move.l %d0, (%a2)
 
-	/* set stackpointer to end of internal ram to get some stackspace for the
-	   first c-code */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l %sp@-
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
 
-	move.l #__got_start, %a5	/* put relocation table address to a5 */
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	move.l	#board_init_f_alloc_reserve, %a1
+	jsr	(%a1)
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	move.l	#board_init_f_init_reserve, %a1
+	jsr	(%a1)
 
 	/* run low-level CPU init code (from flash) */
 	move.l #cpu_init_f, %a1
 	jsr (%a1)
 	/* run low-level board init code (from flash) */
+	clr.l   %sp@-
 	move.l #board_init_f, %a1
 	jsr (%a1)
 
diff --git a/arch/m68k/cpu/mcf5445x/start.S b/arch/m68k/cpu/mcf5445x/start.S
index f50f147..ba38678 100644
--- a/arch/m68k/cpu/mcf5445x/start.S
+++ b/arch/m68k/cpu/mcf5445x/start.S
@@ -657,17 +657,34 @@ _start:
 	movec	%d0, %RAMBAR1
 #endif
 
-	/* set stackpointer to end of internal ram to get some stackspace for
-	   the first c-code */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l %sp@-
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
+
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
 
-	move.l #__got_start, %a5	/* put relocation table address to a5 */
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	move.l	#board_init_f_alloc_reserve, %a1
+	jsr	(%a1)
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	move.l	#board_init_f_init_reserve, %a1
+	jsr	(%a1)
 
 	/* run low-level CPU init code (from flash) */
 	move.l #cpu_init_f, %a1
 	jsr (%a1)
 	/* run low-level board init code (from flash) */
+	clr.l   %sp@-
 	move.l #board_init_f, %a1
 	jsr (%a1)
 
diff --git a/arch/m68k/cpu/mcf547x_8x/start.S b/arch/m68k/cpu/mcf547x_8x/start.S
index 75de22d..9a87a0d 100644
--- a/arch/m68k/cpu/mcf547x_8x/start.S
+++ b/arch/m68k/cpu/mcf547x_8x/start.S
@@ -141,14 +141,29 @@ _start:
 	move.l %d0, (%a1)
 	move.l %d0, (%a2)
 
-	/* set stackpointer to end of internal ram to get some stackspace for the
-	   first c-code */
-	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
-	clr.l %sp@-
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
 
-	move.l #__got_start, %a5	/* put relocation table address to a5 */
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	bsr	board_init_f_alloc_reserve
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	bsr     board_init_f_init_reserve
 
 	jbsr cpu_init_f			/* run low-level CPU init code (from flash) */
+	clr.l   %sp@-
 	jbsr board_init_f		/* run low-level board init code (from flash) */
 
 	/* board_init_f() does not return */
diff --git a/arch/m68k/include/asm/config.h b/arch/m68k/include/asm/config.h
index e1458ac..9c4d3fb 100644
--- a/arch/m68k/include/asm/config.h
+++ b/arch/m68k/include/asm/config.h
@@ -7,8 +7,6 @@
 #ifndef _ASM_CONFIG_H_
 #define _ASM_CONFIG_H_
 
-#define CONFIG_SYS_GENERIC_GLOBAL_DATA
-
 #define CONFIG_NEEDS_MANUAL_RELOC
 
 #define CONFIG_LMB