54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/**
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* @file
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* @brief These Apis are OMAP independent support functions
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*
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* Implemented by arch/arm/mach-omap/syslib.c
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*
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* Originally from http://linux.omap.com/pub/bootloader/3430sdp/u-boot-v1.tar.gz
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*
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* (C) Copyright 2004-2008
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* Texas Instruments, <www.ti.com>
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* Richard Woodruff <r-woodruff2@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __ASM_ARCH_OMAP_SYSLIB_H_
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#define __ASM_ARCH_OMAP_SYSLIB_H_
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#include <io.h>
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/** System Independent functions */
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/**
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* @brief clear & set a value in a bit range for a 32 bit address
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*
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* @param[in] addr Address to set/read from
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* @param[in] start_bit Where to put the value
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* @param[in] num_bits number of bits the value should be set
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* @param[in] value the value to set
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*
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* @return void
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*/
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static inline void sr32(u32 addr, u32 start_bit, u32 num_bits, u32 value)
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{
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u32 tmp, msk = 0;
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msk = 1 << num_bits;
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--msk;
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tmp = readl(addr) & ~(msk << start_bit);
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tmp |= value << start_bit;
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writel(tmp, addr);
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}
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u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound);
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void sdelay(unsigned long loops);
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#endif /* __ASM_ARCH_OMAP_SYSLIB_H_ */
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