From: Vipin KUMAR vipin.kumar@st.com
Adding CONFIG_DISPLAY_CPUINFO and CONFIG_ARCH_CPU_INIT support for SPEAr3xx and SPEAr6xx SoCs
CONFIG_DISPLAY_CPUINFO includes the built CPU related information
Earlier, architecture specific init code was mixed with board initialization code in board/spear/... CONFIG_ARCH_CPU_INIT includes the architecture specific initialisation code with in arch/arm/spear/cpu.c
Signed-off-by: Vipin Kumar vipin.kumar@st.com --- arch/arm/cpu/arm926ejs/spear/Makefile | 3 +- arch/arm/cpu/arm926ejs/spear/cpu.c | 78 ++++++++++++++++++++++++++++ arch/arm/include/asm/arch-spear/spr_misc.h | 5 ++ include/configs/spear-common.h | 2 + 4 files changed, 87 insertions(+), 1 deletions(-) create mode 100644 arch/arm/cpu/arm926ejs/spear/cpu.c
diff --git a/arch/arm/cpu/arm926ejs/spear/Makefile b/arch/arm/cpu/arm926ejs/spear/Makefile index bf8dfa8..6ca8c6e 100644 --- a/arch/arm/cpu/arm926ejs/spear/Makefile +++ b/arch/arm/cpu/arm926ejs/spear/Makefile @@ -25,7 +25,8 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).a
-COBJS := reset.o \ +COBJS := cpu.o \ + reset.o \ timer.o SOBJS :=
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c b/arch/arm/cpu/arm926ejs/spear/cpu.c new file mode 100644 index 0000000..0f66e05 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/spear/cpu.c @@ -0,0 +1,78 @@ +/* + * (C) Copyright 2010 + * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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 <common.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> +#include <asm/arch/spr_misc.h> + +#ifdef CONFIG_ARCH_CPU_INIT +int arch_cpu_init(void) +{ + struct misc_regs *const misc_p = + (struct misc_regs *)CONFIG_SPEAR_MISCBASE; + u32 periph1_clken; + + periph1_clken = readl(&misc_p->periph1_clken); + +#if defined(CONFIG_PL011_SERIAL) + periph1_clken |= MISC_UART0ENB; +#endif +#if defined(CONFIG_DESIGNWARE_ETH) + periph1_clken |= MISC_ETHENB; +#endif +#if defined(CONFIG_DW_UDC) + periph1_clken |= MISC_USBDENB; +#endif +#if defined(CONFIG_DW_I2C) + periph1_clken |= MISC_I2CENB; +#endif +#if defined(CONFIG_ST_SMI) + periph1_clken |= MISC_SMIENB; +#endif +#if defined(CONFIG_NAND_FSMC) + periph1_clken |= MISC_FSMCENB; +#endif + + writel(periph1_clken, &misc_p->periph1_clken); + return 0; +} +#endif + +#ifdef CONFIG_DISPLAY_CPUINFO +int print_cpuinfo(void) +{ +#ifdef CONFIG_SPEAR300 + printf("CPU: SPEAr300\n"); +#elif defined(CONFIG_SPEAR310) + printf("CPU: SPEAr310\n"); +#elif defined(CONFIG_SPEAR320) + printf("CPU: SPEAr320\n"); +#elif defined(CONFIG_SPEAR600) + printf("CPU: SPEAr600\n"); +#else +#error CPU not supported in spear platform +#endif + return 0; +} +#endif diff --git a/arch/arm/include/asm/arch-spear/spr_misc.h b/arch/arm/include/asm/arch-spear/spr_misc.h index 8b96d9b..045d2bb 100644 --- a/arch/arm/include/asm/arch-spear/spr_misc.h +++ b/arch/arm/include/asm/arch-spear/spr_misc.h @@ -126,5 +126,10 @@ struct misc_regs {
/* PERIPH1_CLKEN, PERIPH1_RST value */ #define MISC_USBDENB 0x01000000 +#define MISC_ETHENB 0x00800000 +#define MISC_SMIENB 0x00200000 +#define MISC_FSMCENB 0x00000200 +#define MISC_I2CENB 0x00000080 +#define MISC_UART0ENB 0x00000008
#endif diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h index b526558..10beef7 100644 --- a/include/configs/spear-common.h +++ b/include/configs/spear-common.h @@ -168,6 +168,8 @@ #define CONFIG_ENV_SIZE 0x02000
/* Miscellaneous configurable options */ +#define CONFIG_ARCH_CPU_INIT 1 +#define CONFIG_DISPLAY_CPUINFO 1 #define CONFIG_BOOT_PARAMS_ADDR 0x00000100 #define CONFIG_CMDLINE_TAG 1 #define CONFIG_SETUP_MEMORY_TAGS 1