diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index 6b2addca11caeb4fd43bc2162cd7686f436e3042..788eadaaf31b5c9509d6ed0f0b1d854ff6e1dd6a 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 0000000000000000000000000000000000000000..ef04575e8259183f02713975e50f6187f16b14f5 --- /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 ccc6bb6b85389c64b6ebca7787d2d33b9c2b4a92..1ece073630a4513858f59df5ee0ca19674e3ebe4 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 diff --git a/arch/arm/include/asm/arch-am33xx/hardware.h b/arch/arm/include/asm/arch-am33xx/hardware.h index c61733185488bde9b441a44b308239aa1336a336..62332f2ded54dcb70e362025b4c22253a86df00f 100644 --- a/arch/arm/include/asm/arch-am33xx/hardware.h +++ b/arch/arm/include/asm/arch-am33xx/hardware.h @@ -19,8 +19,9 @@ #ifndef __AM33XX_HARDWARE_H #define __AM33XX_HARDWARE_H +#include <asm/arch/omap.h> + /* Module base addresses */ -#define LOW_LEVEL_SRAM_STACK 0x4030B7FC #define UART0_BASE 0x44E09000 /* DM Timer base addresses */ diff --git a/arch/arm/include/asm/arch-am33xx/omap.h b/arch/arm/include/asm/arch-am33xx/omap.h index fc2b7a5a280c8d3a0ff2cecb4d19aa5e97ae174d..850f8a551d8381c5896a19e3ee101f8fb876a20a 100644 --- a/arch/arm/include/asm/arch-am33xx/omap.h +++ b/arch/arm/include/asm/arch-am33xx/omap.h @@ -30,7 +30,6 @@ */ #define NON_SECURE_SRAM_START 0x40304000 #define NON_SECURE_SRAM_END 0x4030E000 -#define LOW_LEVEL_SRAM_STACK 0x4030B7FC /* ROM code defines */ /* Boot device */ diff --git a/arch/arm/include/asm/arch-omap4/omap.h b/arch/arm/include/asm/arch-omap4/omap.h index 03bd9231450a8047d38ba73caf9d0441ef5fb9b3..d4b5076108603151328956df936e47f6b971a904 100644 --- a/arch/arm/include/asm/arch-omap4/omap.h +++ b/arch/arm/include/asm/arch-omap4/omap.h @@ -172,7 +172,6 @@ struct control_lpddr2io_regs { /* base address for indirect vectors (internal boot mode) */ #define SRAM_ROM_VECT_BASE 0x4030D000 /* Temporary SRAM stack used while low level init is done */ -#define LOW_LEVEL_SRAM_STACK NON_SECURE_SRAM_END #define SRAM_SCRATCH_SPACE_ADDR NON_SECURE_SRAM_START /* SRAM scratch space entries */ #define OMAP4_SRAM_SCRATCH_OMAP4_REV SRAM_SCRATCH_SPACE_ADDR diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h index 7f05cb5b4a782314a74bf73fd10403f01c647a44..9dce49ac4b3a705be8c22b2c8c992b02c8651fd1 100644 --- a/arch/arm/include/asm/arch-omap5/omap.h +++ b/arch/arm/include/asm/arch-omap5/omap.h @@ -262,8 +262,6 @@ struct omap_sys_ctrl_regs { #define NON_SECURE_SRAM_END 0x40320000 /* Not inclusive */ /* base address for indirect vectors (internal boot mode) */ #define SRAM_ROM_VECT_BASE 0x4031F000 -/* Temporary SRAM stack used while low level init is done */ -#define LOW_LEVEL_SRAM_STACK NON_SECURE_SRAM_END #define SRAM_SCRATCH_SPACE_ADDR NON_SECURE_SRAM_START /* diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index 2bfe8c6dcdfa0de7c3bb716ec25f12c1fdeea74e..a8a6b8ed9c526729a9e47bd2d1e7480e93ac8e73 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -148,7 +148,7 @@ #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ #define CONFIG_SYS_SDRAM_BASE PHYS_DRAM_1 -#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + 0x1000 - \ +#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ GENERATED_GBL_DATA_SIZE) /* Platform/Board specific defs */ #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ @@ -195,7 +195,7 @@ #define CONFIG_SPL #define CONFIG_SPL_TEXT_BASE 0x402F0400 #define CONFIG_SPL_MAX_SIZE (46 * 1024) -#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK +#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR #define CONFIG_SPL_BSS_START_ADDR 0x80000000 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h index 6f298a1f7d016695966ebd9716ff0bef72a915aa..27718399670ed1115d680574c8545bc135b20993 100644 --- a/include/configs/omap4_common.h +++ b/include/configs/omap4_common.h @@ -225,10 +225,7 @@ #define CONFIG_NR_DRAM_BANKS 1 #define CONFIG_SYS_SDRAM_BASE 0x80000000 -#define CONFIG_SYS_INIT_RAM_ADDR 0x4030D800 -#define CONFIG_SYS_INIT_RAM_SIZE 0x800 -#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \ - CONFIG_SYS_INIT_RAM_SIZE - \ +#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ GENERATED_GBL_DATA_SIZE) #ifndef CONFIG_SYS_L2CACHE_OFF @@ -249,7 +246,7 @@ #define CONFIG_SPL #define CONFIG_SPL_TEXT_BASE 0x40304350 #define CONFIG_SPL_MAX_SIZE (38 * 1024) -#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK +#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR /* * 64 bytes before this address should be set aside for u-boot.img's diff --git a/include/configs/omap5_evm.h b/include/configs/omap5_evm.h index 088428035dbebe3445b9d442a06d9ec64f0f6182..4d6de16734fa2c951a5566268717de3501c44171 100644 --- a/include/configs/omap5_evm.h +++ b/include/configs/omap5_evm.h @@ -228,10 +228,7 @@ #define CONFIG_NR_DRAM_BANKS 1 #define CONFIG_SYS_SDRAM_BASE 0x80000000 -#define CONFIG_SYS_INIT_RAM_ADDR 0x4030D800 -#define CONFIG_SYS_INIT_RAM_SIZE 0x800 -#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \ - CONFIG_SYS_INIT_RAM_SIZE - \ +#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ GENERATED_GBL_DATA_SIZE) #define CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS @@ -246,7 +243,7 @@ #define CONFIG_SPL #define CONFIG_SPL_TEXT_BASE 0x40300350 #define CONFIG_SPL_MAX_SIZE 0x19000 /* 100K */ -#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK +#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */