diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-exynos/include/mach/uncompress.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-exynos/include/mach/uncompress.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-exynos/include/mach/uncompress.h b/ANDROID_3.4.5/arch/arm/mach-exynos/include/mach/uncompress.h new file mode 100644 index 00000000..2979995d --- /dev/null +++ b/ANDROID_3.4.5/arch/arm/mach-exynos/include/mach/uncompress.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2010-2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * EXYNOS - uncompress code + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_ARCH_UNCOMPRESS_H +#define __ASM_ARCH_UNCOMPRESS_H __FILE__ + +#include <asm/mach-types.h> + +#include <mach/map.h> + +volatile u8 *uart_base; + +#include <plat/uncompress.h> + +static unsigned int __raw_readl(unsigned int ptr) +{ + return *((volatile unsigned int *)ptr); +} + +static void arch_detect_cpu(void) +{ + u32 chip_id = __raw_readl(EXYNOS_PA_CHIPID); + + /* + * product_id is bits 31:12 + * bits 23:20 describe the exynosX family + * + */ + chip_id >>= 20; + chip_id &= 0xf; + + if (chip_id == 0x5) + uart_base = (volatile u8 *)EXYNOS5_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); + else + uart_base = (volatile u8 *)EXYNOS4_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); + + /* + * For preventing FIFO overrun or infinite loop of UART console, + * fifo_max should be the minimum fifo size of all of the UART channels + */ + fifo_mask = S5PV210_UFSTAT_TXMASK; + fifo_max = 15 << S5PV210_UFSTAT_TXSHIFT; +} +#endif /* __ASM_ARCH_UNCOMPRESS_H */ |