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/*
* (C) Copyright 2010 Samsung Electronics
* Minkyu Kang <mk7.kang@samsung.com>
*
* 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
*
*/
#ifndef _EXYNOS_COMMON_CPU_H
#define _EXYNOS_COMMON_CPU_H
#include <cpu/samsung/s5p-common/cpu.h>
#define DEVICE_NOT_AVAILABLE 0
#define EXYNOS_PRO_ID 0x10000000
/* Address of address of function that copys data from SD or MMC */
#define EXYNOS_COPY_MMC_FNPTR_ADDR 0x02020030
/* Address of address of function that copys data from SPI */
#define EXYNOS_COPY_SPI_FNPTR_ADDR 0x02020058
/* Address of address of function that copys data through USB */
#define EXYNOS_COPY_USB_FNPTR_ADDR 0x02020070
/* Boot mode values */
#define EXYNOS_USB_SECONDARY_BOOT 0xfeed0002
#define EXYNOS_IRAM_SECONDARY_BASE 0x02020018
#define EXYNOS_I2C_SPACING 0x10000
enum boot_mode {
/*
* Assign the OM pin values for respective boot modes.
* Exynos4 does not support spi boot and the mmc boot OM
* pin values are the same across Exynos4 and Exynos5.
*/
BOOT_MODE_MMC = 4,
BOOT_MODE_SERIAL = 20,
/* Boot based on Operating Mode pin settings */
BOOT_MODE_OM = 32,
BOOT_MODE_USB, /* Boot using USB download */
};
#if 0
/**
* Get the U-boot size for SPL copy functions
*
* @return size of U-Boot code/data that needs to be loaded by the SPL stage
*/
unsigned int exynos_get_uboot_size(void);
#endif
/**
* Get the boot device containing BL1, BL2 (SPL) and U-boot
*
* @return boot device
*/
enum boot_mode exynos_get_boot_device(void);
/**
* Check if a wakeup is permitted.
*
* On some boards we need to look at a special GPIO to ensure that the wakeup
* from sleep was valid. If the wakeup is not valid we need to go through a
* full reset.
*
* The default implementation of this function allows all wakeups.
*
* @return 1 if wakeup is permitted; 0 otherwise
*/
int board_wakeup_permitted(void);
#define cpu_is_exynos4() (s5p_get_cpu_id() == 0xc210)
#define cpu_is_exynos5() (s5p_get_cpu_id() == 0xc520)
/**
* Init subsystems according to the reset status
*
* @return 0 for a normal boot, non-zero for a resume
*/
int lowlevel_init_subsystems(void);
#endif /* _EXYNOS_COMMON_CPU_H */
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