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/*
* 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
* 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 */
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