| /* |
| * 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> |
| #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 |
| * bits 27:24 describe the exynosX family in exynos5420 |
| */ |
| chip_id >>= 20; |
| |
| if ((chip_id & 0x0f) == 0x5 || (chip_id & 0xf0) == 0x50) |
| 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 */ |
