1/****************************************************************************/ 2 3/* 4 * coldfire.h -- Motorola ColdFire CPU sepecific defines 5 * 6 * (C) Copyright 1999-2006, Greg Ungerer (gerg@snapgear.com) 7 * (C) Copyright 2000, Lineo (www.lineo.com) 8 */ 9 10/****************************************************************************/ 11#ifndef coldfire_h 12#define coldfire_h 13/****************************************************************************/ 14 15 16/* 17 * Define master clock frequency. This is essentially done at config 18 * time now. No point enumerating dozens of possible clock options 19 * here. Also the peripheral clock (bus clock) divide ratio is set 20 * at config time too. 21 */ 22#ifdef CONFIG_CLOCK_SET 23#define MCF_CLK CONFIG_CLOCK_FREQ 24#define MCF_BUSCLK (CONFIG_CLOCK_FREQ / CONFIG_CLOCK_DIV) 25#else 26#error "Don't know what your ColdFire CPU clock frequency is??" 27#endif 28 29/* 30 * Define the processor support peripherals base address. 31 * This is generally setup by the boards start up code. 32 */ 33#define MCF_MBAR 0x10000000 34#define MCF_MBAR2 0x80000000 35#if defined(CONFIG_M520x) 36#define MCF_IPSBAR 0xFC000000 37#else 38#define MCF_IPSBAR 0x40000000 39#endif 40 41#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ 42 defined(CONFIG_M520x) 43#undef MCF_MBAR 44#define MCF_MBAR MCF_IPSBAR 45#elif defined(CONFIG_M532x) 46#undef MCF_MBAR 47#define MCF_MBAR 0x00000000 48#endif 49 50/****************************************************************************/ 51#endif /* coldfire_h */ 52