cpu/mcf523x/start.S

3  * Based on code from Bernhard Kuhn <bkuhn@metrowerks.com>
5  * SPDX-License-Identifier:	GPL-2.0+
8 #include <asm-offsets.h>
19 	moveml	%d0-%d7/%a0-%a6,%sp@;
22 	moveml	%sp@,%d0-%d7/%a0-%a6;				\
30  * These vectors are to catch any un-intended traps.
47 /* TRAP #0 - #15 */
110 	/* initialize general use internal ram */
120 	/* setup stack initially on top of internal static ram  */
127 	move.l	%sp, -(%sp)
131 	/* update stack and frame-pointers */
136 	move.l	%d0, -(%sp)
140 	/* run low-level CPU init code (from flash) */
144 	/* run low-level board init code (from flash) */
145 	clr.l	%sp@-
156  * This "function" does not return, instead it continues in RAM
157  * after relocating the monitor code.
176 	/* copy the code to RAM */
184  * initialization, now running from RAM.
187 	add.l	#(in_ram - CONFIG_SYS_MONITOR_BASE), %a1
197 	add.l	#(_sbss - CONFIG_SYS_MONITOR_BASE),%a1
199 	add.l	#(_ebss - CONFIG_SYS_MONITOR_BASE),%d1
206 	 * fix got table in RAM
209 	add.l	#(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
213 	add.l	#(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
223 	/* calculate relative jump to board_init_r in ram */
225 	add.l	#(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
228 	move.l	%a0,-(%sp)		/* dest_addr */
229 	move.l	%d0,-(%sp)		/* gd */
234 /* exception code */
242 	movel	%sp,%sp@-
250 	movel	%sp,%sp@-