| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /***************************************************************************/ |
| 2 | |
| 3 | /* |
| 4 | * linux/arch/m68knommu/platform/527x/config.c |
| 5 | * |
| 6 | * Sub-architcture dependant initialization code for the Freescale |
| 7 | * 5270/5271 CPUs. |
| 8 | * |
| 9 | * Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com) |
| 10 | * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) |
| 11 | */ |
| 12 | |
| 13 | /***************************************************************************/ |
| 14 | |
| 15 | #include <linux/config.h> |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/sched.h> |
| 18 | #include <linux/param.h> |
| 19 | #include <linux/init.h> |
| 20 | #include <linux/interrupt.h> |
| 21 | #include <asm/dma.h> |
| 22 | #include <asm/traps.h> |
| 23 | #include <asm/machdep.h> |
| 24 | #include <asm/coldfire.h> |
| 25 | #include <asm/mcfsim.h> |
| 26 | #include <asm/mcfdma.h> |
| 27 | |
| 28 | /***************************************************************************/ |
| 29 | |
| 30 | void coldfire_pit_tick(void); |
| 31 | void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); |
| 32 | unsigned long coldfire_pit_offset(void); |
| 33 | void coldfire_trap_init(void); |
| 34 | void coldfire_reset(void); |
| 35 | |
| 36 | /***************************************************************************/ |
| 37 | |
| 38 | /* |
| 39 | * DMA channel base address table. |
| 40 | */ |
| 41 | unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { |
| 42 | MCF_MBAR + MCFDMA_BASE0, |
| 43 | }; |
| 44 | |
| 45 | unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; |
| 46 | |
| 47 | /***************************************************************************/ |
| 48 | |
| 49 | void mcf_disableall(void) |
| 50 | { |
| 51 | *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff; |
| 52 | *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff; |
| 53 | } |
| 54 | |
| 55 | /***************************************************************************/ |
| 56 | |
| 57 | void mcf_autovector(unsigned int vec) |
| 58 | { |
| 59 | /* Everything is auto-vectored on the 5272 */ |
| 60 | } |
| 61 | |
| 62 | /***************************************************************************/ |
| 63 | |
| 64 | void config_BSP(char *commandp, int size) |
| 65 | { |
| 66 | mcf_disableall(); |
| 67 | |
| 68 | #ifdef CONFIG_BOOTPARAM |
| 69 | strncpy(commandp, CONFIG_BOOTPARAM_STRING, size); |
| 70 | commandp[size-1] = 0; |
| 71 | #else |
| 72 | memset(commandp, 0, size); |
| 73 | #endif |
| 74 | |
| 75 | mach_sched_init = coldfire_pit_init; |
| 76 | mach_tick = coldfire_pit_tick; |
| 77 | mach_gettimeoffset = coldfire_pit_offset; |
| 78 | mach_trap_init = coldfire_trap_init; |
| 79 | mach_reset = coldfire_reset; |
| 80 | } |
| 81 | |
| 82 | /***************************************************************************/ |