diff options
Diffstat (limited to 'src/cpu/samsung/exynos5-common/cpu.h')
-rw-r--r-- | src/cpu/samsung/exynos5-common/cpu.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5-common/cpu.h b/src/cpu/samsung/exynos5-common/cpu.h new file mode 100644 index 0000000000..e68de8688f --- /dev/null +++ b/src/cpu/samsung/exynos5-common/cpu.h @@ -0,0 +1,99 @@ +/* + * (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 */ |