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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | /***************************************************************************/ /* * linux/arch/m68knommu/platform/5206e/config.c * * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) */ /***************************************************************************/ #include <linux/config.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/param.h> #include <linux/interrupt.h> #include <asm/irq.h> #include <asm/dma.h> #include <asm/traps.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcftimer.h> #include <asm/mcfsim.h> #include <asm/mcfdma.h> #include <asm/irq.h> #include <asm/delay.h> /***************************************************************************/ void coldfire_tick(void); void coldfire_timer_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); unsigned long coldfire_timer_offset(void); void coldfire_trap_init(void); void coldfire_reset(void); /***************************************************************************/ /* * DMA channel base address table. */ unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { MCF_MBAR + MCFDMA_BASE0, MCF_MBAR + MCFDMA_BASE1, }; /***************************************************************************/ void mcf_autovector(unsigned int vec) { volatile unsigned char *mbar; unsigned char icr; if ((vec >= 25) && (vec <= 31)) { vec -= 25; mbar = (volatile unsigned char *) MCF_MBAR; icr = MCFSIM_ICR_AUTOVEC | (vec << 3); *(mbar + MCFSIM_ICR1 + vec) = icr; vec = 0x1 << (vec + 1); mcf_setimr(mcf_getimr() & ~vec); } } /***************************************************************************/ void mcf_settimericr(unsigned int timer, unsigned int level) { volatile unsigned char *icrp; unsigned int icr, imr; if (timer <= 2) { switch (timer) { case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break; default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break; } icrp = (volatile unsigned char *) (MCF_MBAR + icr); *icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3; mcf_setimr(mcf_getimr() & ~imr); } } /***************************************************************************/ int mcf_timerirqpending(int timer) { unsigned int imr = 0; switch (timer) { case 1: imr = MCFSIM_IMR_TIMER1; break; case 2: imr = MCFSIM_IMR_TIMER2; break; default: break; } return (mcf_getipr() & imr); } /***************************************************************************/ void config_BSP(char *commandp, int size) { mcf_setimr(MCFSIM_IMR_MASKALL); #if defined(CONFIG_BOOTPARAM) strncpy(commandp, CONFIG_BOOTPARAM_STRING, size); commandp[size-1] = 0; #elif defined(CONFIG_NETtel) /* Copy command line from FLASH to local buffer... */ memcpy(commandp, (char *) 0xf0004000, size); commandp[size-1] = 0; #else memset(commandp, 0, size); #endif /* CONFIG_NETtel */ mach_sched_init = coldfire_timer_init; mach_tick = coldfire_tick; mach_gettimeoffset = coldfire_timer_offset; mach_trap_init = coldfire_trap_init; mach_reset = coldfire_reset; } /***************************************************************************/ |