*
* ----- Adapted for OMAP1610 OMAP730 from ARM925t code ------
*
- * Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
- * Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
+ * Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
+ * Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
* Copyright (c) 2002 Gary Jennejohn <garyj@denx.de>
* Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com>
* Copyright (c) 2003 Kshitij <kshitij@ti.com>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
-
+#include <asm-offsets.h>
#include <config.h>
#include <version.h>
*************************************************************************
*/
-.globl _TEXT_BASE
-_TEXT_BASE:
- .word TEXT_BASE /* address of _start in the linked image */
-
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-.globl _armboot_start
-_armboot_start:
- .word _start
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- */
-.globl _bss_start
-_bss_start:
- .word __bss_start
-
-.globl _bss_end
-_bss_end:
- .word _end
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
.word 0x0badc0de
#endif
-#if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
/* IRQ stack memory (calculated at run-time) + 8 bytes */
.globl IRQ_STACK_START_IN
IRQ_STACK_START_IN:
.word 0x0badc0de
-.globl _datarel_start
-_datarel_start:
- .word __datarel_start
-
-.globl _datarelrolocal_start
-_datarelrolocal_start:
- .word __datarelrolocal_start
-
-.globl _datarellocal_start
-_datarellocal_start:
- .word __datarellocal_start
-
-.globl _datarelro_start
-_datarelro_start:
- .word __datarelro_start
-
-.globl _got_start
-_got_start:
- .word __got_start
-
-.globl _got_end
-_got_end:
- .word __got_end
-
/*
* the actual reset code
*/
bl cpu_init_crit
#endif
-/* Set stackpointer in internal RAM to call board_init_f */
-call_board_init_f:
- ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
- ldr r0,=0x00000000
- bl board_init_f
+ bl _main
/*------------------------------------------------------------------------------*/
-/*
- * void relocate_code (addr_sp, gd, addr_moni)
- *
- * This "function" does not return, instead it continues in RAM
- * after relocating the monitor code.
- *
- */
- .globl relocate_code
-relocate_code:
- mov r4, r0 /* save addr_sp */
- mov r5, r1 /* save addr of gd */
- mov r6, r2 /* save addr of destination */
- mov r7, r2 /* save addr of destination */
-
- /* Set up the stack */
-stack_setup:
- mov sp, r4
-
- adr r0, _start
- ldr r2, _TEXT_BASE
- ldr r3, _bss_start
- sub r2, r3, r2 /* r2 <- size of armboot */
- add r2, r0, r2 /* r2 <- source end address */
- cmp r0, r6
- beq clear_bss
-
-#ifndef CONFIG_SKIP_RELOCATE_UBOOT
-copy_loop:
- ldmia r0!, {r9-r10} /* copy from source address [r0] */
- stmia r6!, {r9-r10} /* copy to target address [r1] */
- cmp r0, r2 /* until source end addreee [r2] */
- ble copy_loop
-
-#ifndef CONFIG_PRELOADER
- /* fix got entries */
- ldr r1, _TEXT_BASE /* Text base */
- mov r0, r7 /* reloc addr */
- ldr r2, _got_start /* addr in Flash */
- ldr r3, _got_end /* addr in Flash */
- sub r3, r3, r1
- add r3, r3, r0
- sub r2, r2, r1
- add r2, r2, r0
-
-fixloop:
- ldr r4, [r2]
- sub r4, r4, r1
- add r4, r4, r0
- str r4, [r2]
- add r2, r2, #4
- cmp r2, r3
- bne fixloop
-#endif
-#endif /* #ifndef CONFIG_SKIP_RELOCATE_UBOOT */
-
-clear_bss:
-#ifndef CONFIG_PRELOADER
- ldr r0, _bss_start
- ldr r1, _bss_end
- ldr r3, _TEXT_BASE /* Text base */
- mov r4, r7 /* reloc addr */
- sub r0, r0, r3
- add r0, r0, r4
- sub r1, r1, r3
- add r1, r1, r4
- mov r2, #0x00000000 /* clear */
-
-clbss_l:str r2, [r0] /* clear loop... */
- add r0, r0, #4
- cmp r0, r1
- bne clbss_l
-
- bl coloured_LED_init
- bl red_LED_on
-#endif
+ .globl c_runtime_cpu_setup
+c_runtime_cpu_setup:
-/*
- * We are done. Do not return, instead branch to second part of board
- * initialization, now running from RAM.
- */
- ldr r0, _TEXT_BASE
- ldr r2, _board_init_r
- sub r2, r2, r0
- add r2, r2, r7 /* position from board_init_r in RAM */
- /* setup parameters for board_init_r */
- mov r0, r5 /* gd_t */
- mov r1, r7 /* dest_addr */
- /* jump to it ... */
- mov lr, r2
mov pc, lr
-_board_init_r: .word board_init_r
-
-#else /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-
-/*
- * the actual reset code
- */
-.globl reset
-reset:
- /*
- * set the cpu to SVC32 mode
- */
- mrs r0,cpsr
- bic r0,r0,#0x1f
- orr r0,r0,#0xd3
- msr cpsr,r0
-
- /*
- * we do sys-critical inits only at reboot,
- * not when booting from ram!
- */
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
- bl cpu_init_crit
-#endif
-
-relocate: /* relocate U-Boot to RAM */
- adr r0, _start /* pc relative address of label */
- ldr r1, _TEXT_BASE /* linked image address of label */
- cmp r0, r1 /* test if we run from flash or RAM */
- beq stack_setup /* ifeq we are in the RAM copy */
-
- ldr r2, _armboot_start
- ldr r3, _bss_start
- sub r2, r3, r2 /* r2 <- size of armboot */
- add r2, r0, r2 /* r2 <- source end address */
-
-copy_loop:
- ldmia r0!, {r3-r10} /* copy from source address [r0] */
- stmia r1!, {r3-r10} /* copy to target address [r1] */
- cmp r0, r2 /* until source end addreee [r2] */
- ble copy_loop
-
- /* Set up the stack */
-stack_setup:
- ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
- sub r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area */
- sub r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo */
-#ifdef CONFIG_USE_IRQ
- sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
-#endif
- sub sp, r0, #12 /* leave 3 words for abort-stack */
- bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
-
-clear_bss:
- ldr r0, _bss_start /* find start of bss segment */
- ldr r1, _bss_end /* stop here */
- mov r2, #0x00000000 /* clear */
-
-clbss_l:str r2, [r0] /* clear loop... */
- add r0, r0, #4
- cmp r0, r1
- ble clbss_l
-
- ldr pc, _start_armboot
-
-_start_armboot:
- .word start_armboot
-
-#endif /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-
/*
*************************************************************************
*
sub sp, sp, #S_FRAME_SIZE
stmia sp, {r0 - r12} @ Save user registers (now in svc mode) r0-r12
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
- ldr r2, _armboot_start
- sub r2, r2, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
- sub r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
-#else
ldr r2, IRQ_STACK_START_IN
-#endif
@ get values for "aborted" pc and cpsr (into parm regs)
ldmia r2, {r2 - r3}
add r0, sp, #S_FRAME_SIZE @ grab pointer to old stack
.endm
.macro get_bad_stack
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
- ldr r13, _armboot_start @ setup our mode stack
- sub r13, r13, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
- sub r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
-#else
ldr r13, IRQ_STACK_START_IN @ setup our mode stack
-#endif
str lr, [r13] @ save caller lr in position 0 of saved stack
mrs lr, spsr @ get the spsr