mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
65cc0e2a65
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
271 lines
6.9 KiB
ArmAsm
271 lines
6.9 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2003 Josef Baumgartner <josef.baumgartner@telex.de>
|
|
* Based on code from Bernhard Kuhn <bkuhn@metrowerks.com>
|
|
*
|
|
* (C) Copyright 2004-2008 Freescale Semiconductor, Inc.
|
|
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
|
|
*/
|
|
|
|
#include <asm-offsets.h>
|
|
#include <config.h>
|
|
#include <asm/cache.h>
|
|
|
|
#define _START _start
|
|
#define _FAULT _fault
|
|
|
|
#define SAVE_ALL \
|
|
move.w #0x2700,%sr; /* disable intrs */ \
|
|
subl #60,%sp; /* space for 15 regs */ \
|
|
moveml %d0-%d7/%a0-%a6,%sp@;
|
|
|
|
#define RESTORE_ALL \
|
|
moveml %sp@,%d0-%d7/%a0-%a6; \
|
|
addl #60,%sp; /* space for 15 regs */ \
|
|
rte;
|
|
|
|
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
|
|
|
|
.text
|
|
|
|
/*
|
|
* Vector table. This is used for initial platform startup.
|
|
* These vectors are to catch any un-intended traps.
|
|
*/
|
|
_vectors:
|
|
INITSP: .long 0x00000000 /* Initial SP */
|
|
INITPC: .long _START /* Initial PC */
|
|
|
|
vector02_0F:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
/* Reserved */
|
|
vector10_17:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
vector18_1F:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
/* TRAP #0 - #15 */
|
|
vector20_2F:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
/* Reserved */
|
|
vector30_3F:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
vector64_127:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
vector128_191:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
|
|
vector192_255:
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
|
|
#endif /* !defined(CONFIG_MONITOR_IS_IN_RAM) */
|
|
|
|
.text
|
|
|
|
.globl _start
|
|
_start:
|
|
nop
|
|
nop
|
|
move.w #0x2700,%sr /* Mask off Interrupt */
|
|
|
|
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
|
|
/* Set vector base register at the beginning of the Flash */
|
|
move.l #CFG_SYS_FLASH_BASE, %d0
|
|
movec %d0, %VBR
|
|
#endif
|
|
|
|
move.l #(CFG_SYS_INIT_RAM_ADDR + CFG_SYS_INIT_RAM_CTRL), %d0
|
|
movec %d0, %RAMBAR1
|
|
|
|
/* invalidate and disable cache */
|
|
move.l #CF_CACR_CINVA, %d0 /* Invalidate cache cmd */
|
|
movec %d0, %CACR /* Invalidate cache */
|
|
move.l #0, %d0
|
|
movec %d0, %ACR0
|
|
movec %d0, %ACR1
|
|
|
|
#ifdef CONFIG_MCF5301x
|
|
move.l #(0xFC0a0010), %a0
|
|
move.w (%a0), %d0
|
|
and.l %d0, 0xEFFF
|
|
|
|
move.w %d0, (%a0)
|
|
#endif
|
|
|
|
/* initialize general use internal ram */
|
|
move.l #0, %d0
|
|
move.l #(ICACHE_STATUS), %a1 /* icache */
|
|
move.l #(DCACHE_STATUS), %a2 /* icache */
|
|
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 #(CFG_SYS_INIT_RAM_ADDR + CFG_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)
|
|
|
|
/* board_init_f() does not return */
|
|
|
|
/******************************************************************************/
|
|
|
|
/*
|
|
* void relocate_code(addr_sp, gd, addr_moni)
|
|
*
|
|
* This "function" does not return, instead it continues in RAM
|
|
* after relocating the monitor code.
|
|
*
|
|
* r3 = dest
|
|
* r4 = src
|
|
* r5 = length in bytes
|
|
* r6 = cachelinesize
|
|
*/
|
|
.globl relocate_code
|
|
relocate_code:
|
|
link.w %a6,#0
|
|
move.l 8(%a6), %sp /* set new stack pointer */
|
|
|
|
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
|
|
move.l 16(%a6), %a0 /* Save copy of Destination Address */
|
|
|
|
move.l #CONFIG_SYS_MONITOR_BASE, %a1
|
|
move.l #__init_end, %a2
|
|
move.l %a0, %a3
|
|
|
|
/* copy the code to RAM */
|
|
1:
|
|
move.l (%a1)+, (%a3)+
|
|
cmp.l %a1,%a2
|
|
bgt.s 1b
|
|
|
|
/*
|
|
* We are done. Do not return, instead branch to second part of board
|
|
* initialization, now running from RAM.
|
|
*/
|
|
move.l %a0, %a1
|
|
add.l #(in_ram - CONFIG_SYS_MONITOR_BASE), %a1
|
|
jmp (%a1)
|
|
|
|
in_ram:
|
|
|
|
clear_bss:
|
|
/*
|
|
* Now clear BSS segment
|
|
*/
|
|
move.l %a0, %a1
|
|
add.l #(_sbss - CONFIG_SYS_MONITOR_BASE),%a1
|
|
move.l %a0, %d1
|
|
add.l #(_ebss - CONFIG_SYS_MONITOR_BASE),%d1
|
|
6:
|
|
clr.l (%a1)+
|
|
cmp.l %a1,%d1
|
|
bgt.s 6b
|
|
|
|
/*
|
|
* fix got table in RAM
|
|
*/
|
|
move.l %a0, %a1
|
|
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
|
|
move.l %a1,%a5 /* fix got pointer register a5 */
|
|
|
|
move.l %a0, %a2
|
|
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
|
|
|
|
7:
|
|
move.l (%a1),%d1
|
|
sub.l #_start,%d1
|
|
add.l %a0,%d1
|
|
move.l %d1,(%a1)+
|
|
cmp.l %a2, %a1
|
|
bne 7b
|
|
|
|
/* calculate relative jump to board_init_r in ram */
|
|
move.l %a0, %a1
|
|
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
|
|
|
|
/* set parameters for board_init_r */
|
|
move.l %a0,-(%sp) /* dest_addr */
|
|
move.l %d0,-(%sp) /* gd */
|
|
jsr (%a1)
|
|
|
|
/******************************************************************************/
|
|
|
|
/* exception code */
|
|
.globl _fault
|
|
_fault:
|
|
bra _fault
|
|
|
|
.globl _exc_handler
|
|
_exc_handler:
|
|
SAVE_ALL
|
|
movel %sp,%sp@-
|
|
bsr exc_handler
|
|
addql #4,%sp
|
|
RESTORE_ALL
|
|
|
|
.globl _int_handler
|
|
_int_handler:
|
|
SAVE_ALL
|
|
movel %sp,%sp@-
|
|
bsr int_handler
|
|
addql #4,%sp
|
|
RESTORE_ALL
|
|
|
|
/******************************************************************************/
|
|
|
|
.align 4
|