diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/Makefile | 6 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/lowlevel_init.S | 50 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/lowlevel_init.S | 18 |
3 files changed, 55 insertions, 19 deletions
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index 6b2addc..788eada 100644 --- a/arch/arm/cpu/armv7/Makefile +++ b/arch/arm/cpu/armv7/Makefile @@ -32,8 +32,12 @@ COBJS += cache_v7.o COBJS += cpu.o COBJS += syslib.o +ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),) +SOBJS += lowlevel_init.o +endif + SRCS := $(START:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(COBJS)) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) START := $(addprefix $(obj),$(START)) all: $(obj).depend $(START) $(LIB) diff --git a/arch/arm/cpu/armv7/lowlevel_init.S b/arch/arm/cpu/armv7/lowlevel_init.S new file mode 100644 index 0000000..ef04575 --- /dev/null +++ b/arch/arm/cpu/armv7/lowlevel_init.S @@ -0,0 +1,50 @@ +/* + * A lowlevel_init function that sets up the stack to call a C function to + * perform further init. + * + * (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-offsets.h> +#include <config.h> +#include <linux/linkage.h> + +ENTRY(lowlevel_init) + /* + * Setup a temporary stack + */ + ldr sp, =CONFIG_SYS_INIT_SP_ADDR + + /* + * 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} +ENDPROC(lowlevel_init) diff --git a/arch/arm/cpu/armv7/omap-common/lowlevel_init.S b/arch/arm/cpu/armv7/omap-common/lowlevel_init.S index ccc6bb6..1ece073 100644 --- a/arch/arm/cpu/armv7/omap-common/lowlevel_init.S +++ b/arch/arm/cpu/armv7/omap-common/lowlevel_init.S @@ -78,24 +78,6 @@ ENTRY(save_boot_params) bx lr ENDPROC(save_boot_params) -ENTRY(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} -ENDPROC(lowlevel_init) - ENTRY(set_pl310_ctrl_reg) PUSH {r4-r11, lr} @ save registers - ROM code may pollute @ our registers |