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_M54xx) 36 #define MCF_IPSBAR MCF_MBAR 37 #elif defined(CONFIG_M520x) 38 #define MCF_IPSBAR 0xFC000000 39 #else 40 #define MCF_IPSBAR 0x40000000 41 #endif 42 43 #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ 44 defined(CONFIG_M520x) 45 #undef MCF_MBAR 46 #define MCF_MBAR MCF_IPSBAR 47 #elif defined(CONFIG_M532x) 48 #undef MCF_MBAR 49 #define MCF_MBAR 0x00000000 50 #endif 51 52 /****************************************************************************/ 53 #endif /* coldfire_h */ 54