|
|
|
|
/*
|
|
|
|
|
* Board specific setup info
|
|
|
|
|
*
|
|
|
|
|
* (C) Copyright 2010
|
|
|
|
|
* Texas Instruments, <www.ti.com>
|
|
|
|
|
*
|
|
|
|
|
* Author :
|
|
|
|
|
* Aneesh V <aneesh@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
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <asm/arch/omap4.h>
|
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
|
|
|
.global save_boot_params
|
|
|
|
|
save_boot_params:
|
|
|
|
|
/*
|
|
|
|
|
* See if the rom code passed pointer is valid:
|
|
|
|
|
* It is not valid if it is not in non-secure SRAM
|
|
|
|
|
* This may happen if you are booting with the help of
|
|
|
|
|
* debugger
|
|
|
|
|
*/
|
|
|
|
|
ldr r2, =NON_SECURE_SRAM_START
|
|
|
|
|
cmp r2, r0
|
|
|
|
|
bgt 1f
|
|
|
|
|
ldr r2, =NON_SECURE_SRAM_END
|
|
|
|
|
cmp r2, r0
|
|
|
|
|
blt 1f
|
|
|
|
|
|
|
|
|
|
/* Store the boot device in omap4_boot_device */
|
|
|
|
|
ldr r2, [r0, #BOOT_DEVICE_OFFSET] @ r1 <- value of boot device
|
|
|
|
|
and r2, #BOOT_DEVICE_MASK
|
|
|
|
|
ldr r3, =omap4_boot_device
|
|
|
|
|
str r2, [r3] @ omap4_boot_device <- r1
|
|
|
|
|
|
|
|
|
|
/* Store the boot mode (raw/FAT) in omap4_boot_mode */
|
|
|
|
|
ldr r2, [r0, #DEV_DESC_PTR_OFFSET] @ get the device descriptor ptr
|
|
|
|
|
ldr r2, [r2, #DEV_DATA_PTR_OFFSET] @ get the pDeviceData ptr
|
|
|
|
|
ldr r2, [r2, #BOOT_MODE_OFFSET] @ get the boot mode
|
|
|
|
|
ldr r3, =omap4_boot_mode
|
|
|
|
|
str r2, [r3]
|
|
|
|
|
1:
|
|
|
|
|
bx lr
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
.globl lowlevel_init
|
|
|
|
|
lowlevel_init:
|
|
|
|
|
/*
|
|
|
|
|
* Setup a temporary stack
|
|
|
|
|
*/
|
|
|
|
|
ldr sp, =LOW_LEVEL_SRAM_STACK
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Save the old lr(passed in ip) and the current lr to stack
|
|
|
|
|
*/
|
|
|
|
|
push {ip, lr}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* go setup pll, mux, memory
|
|
|
|
|
*/
|
|
|
|
|
bl s_init
|
|
|
|
|
pop {ip, pc}
|
|
|
|
|
|
|
|
|
|
.globl set_pl310_ctrl_reg
|
|
|
|
|
set_pl310_ctrl_reg:
|
|
|
|
|
PUSH {r4-r11, lr} @ save registers - ROM code may pollute
|
|
|
|
|
@ our registers
|
|
|
|
|
LDR r12, =0x102 @ Set PL310 control register - value in R0
|
|
|
|
|
.word 0xe1600070 @ SMC #0 - hand assembled because -march=armv5
|
|
|
|
|
@ call ROM Code API to set control register
|
|
|
|
|
POP {r4-r11, pc}
|
