| /** |
| * @file |
| * @brief These Apis are OMAP independent support functions |
| * |
| * FileName: include/asm-arm/arch-omap/syslib.h |
| * |
| * Implemented by arch/arm/mach-omap/syslib.c |
| * |
| * Originally from http://linux.omap.com/pub/bootloader/3430sdp/u-boot-v1.tar.gz |
| */ |
| /* |
| * (C) Copyright 2004-2008 |
| * Texas Instruments, <www.ti.com> |
| * Richard Woodruff <r-woodruff2@ti.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 __ASM_ARCH_OMAP_SYSLIB_H_ |
| #define __ASM_ARCH_OMAP_SYSLIB_H_ |
| #include <asm/io.h> |
| |
| /** System Independent functions */ |
| |
| /** |
| * @brief clear & set a value in a bit range for a 32 bit address |
| * |
| * @param[in] addr Address to set/read from |
| * @param[in] start_bit Where to put the value |
| * @param[in] num_bits number of bits the value should be set |
| * @param[in] value the value to set |
| * |
| * @return void |
| */ |
| static inline void sr32(u32 addr, u32 start_bit, u32 num_bits, u32 value) |
| { |
| u32 tmp, msk = 0; |
| msk = 1 << num_bits; |
| --msk; |
| tmp = readl(addr) & ~(msk << start_bit); |
| tmp |= value << start_bit; |
| writel(tmp, addr); |
| } |
| |
| u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound); |
| void sdelay(unsigned long loops); |
| |
| /** All architectures need to implement these */ |
| void omap_uart_write(unsigned int val, unsigned long base, |
| unsigned char reg_idx); |
| unsigned int omap_uart_read(unsigned long base, unsigned char reg_idx); |
| #endif /* __ASM_ARCH_OMAP_SYSLIB_H_ */ |
