projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /***************************************************************************/ |
| 2 | ||
| 3 | /* | |
| 4 | * linux/arch/m68knommu/platform/5272/config.c | |
| 5 | * | |
| 6 | * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) | |
| 7 | * Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com) | |
| 8 | */ | |
| 9 | ||
| 10 | /***************************************************************************/ | |
| 11 | ||
| 12 | #include <linux/config.h> | |
| 13 | #include <linux/kernel.h> | |
| 14 | #include <linux/sched.h> | |
| 15 | #include <linux/param.h> | |
| 16 | #include <linux/init.h> | |
| 17 | #include <linux/interrupt.h> | |
| 18 | #include <asm/irq.h> | |
| 19 | #include <asm/dma.h> | |
| 20 | #include <asm/traps.h> | |
| 21 | #include <asm/machdep.h> | |
| 22 | #include <asm/coldfire.h> | |
| 23 | #include <asm/mcftimer.h> | |
| 24 | #include <asm/mcfsim.h> | |
| 25 | #include <asm/mcfdma.h> | |
| 26 | ||
| 27 | /***************************************************************************/ | |
| 28 | ||
| 29 | void coldfire_tick(void); | |
| 30 | void coldfire_timer_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); | |
| 31 | unsigned long coldfire_timer_offset(void); | |
| 32 | void coldfire_trap_init(void); | |
| 33 | void coldfire_reset(void); | |
| 34 | ||
| 35 | extern unsigned int mcf_timervector; | |
| 36 | extern unsigned int mcf_profilevector; | |
| 37 | extern unsigned int mcf_timerlevel; | |
| 38 | ||
| 39 | /***************************************************************************/ | |
| 40 | ||
| 41 | /* | |
| 42 | * Some platforms need software versions of the GPIO data registers. | |
| 43 | */ | |
| 44 | unsigned short ppdata; | |
| 45 | unsigned char ledbank = 0xff; | |
| 46 | ||
| 47 | /***************************************************************************/ | |
| 48 | ||
| 49 | /* | |
| 50 | * DMA channel base address table. | |
| 51 | */ | |
| 52 | unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { | |
| 53 | MCF_MBAR + MCFDMA_BASE0, | |
| 54 | }; | |
| 55 | ||
| 56 | unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; | |
| 57 | ||
| 58 | /***************************************************************************/ | |
| 59 | ||
| 60 | void mcf_disableall(void) | |
| 61 | { | |
| 62 | volatile unsigned long *icrp; | |
| 63 | ||
| 64 | icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); | |
| 65 | icrp[0] = 0x88888888; | |
| 66 | icrp[1] = 0x88888888; | |
| 67 | icrp[2] = 0x88888888; | |
| 68 | icrp[3] = 0x88888888; | |
| 69 | } | |
| 70 | ||
| 71 | /***************************************************************************/ | |
| 72 | ||
| 73 | void mcf_autovector(unsigned int vec) | |
| 74 | { | |
| 75 | /* Everything is auto-vectored on the 5272 */ | |
| 76 | } | |
| 77 | ||
| 78 | /***************************************************************************/ | |
| 79 | ||
| 80 | void mcf_settimericr(int timer, int level) | |
| 81 | { | |
| 82 | volatile unsigned long *icrp; | |
| 83 | ||
| 84 | if ((timer >= 1 ) && (timer <= 4)) { | |
| 85 | icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); | |
| 86 | *icrp = (0x8 | level) << ((4 - timer) * 4); | |
| 87 | } | |
| 88 | } | |
| 89 | ||
| 90 | /***************************************************************************/ | |
| 91 | ||
| 92 | int mcf_timerirqpending(int timer) | |
| 93 | { | |
| 94 | volatile unsigned long *icrp; | |
| 95 | ||
| 96 | if ((timer >= 1 ) && (timer <= 4)) { | |
| 97 | icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); | |
| 98 | return (*icrp & (0x8 << ((4 - timer) * 4))); | |
| 99 | } | |
| 100 | return 0; | |
| 101 | } | |
| 102 | ||
| 103 | /***************************************************************************/ | |
| 104 | ||
| 105 | void config_BSP(char *commandp, int size) | |
| 106 | { | |
| a7962660 GU |
107 | #if defined (CONFIG_MOD5272) |
| 108 | volatile unsigned char *pivrp; | |
| 1da177e4 LT |
109 | |
| 110 | /* Set base of device vectors to be 64 */ | |
| a7962660 | 111 | pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR); |
| 1da177e4 LT |
112 | *pivrp = 0x40; |
| 113 | #endif | |
| 114 | ||
| 115 | mcf_disableall(); | |
| 116 | ||
| 117 | #if defined(CONFIG_BOOTPARAM) | |
| 118 | strncpy(commandp, CONFIG_BOOTPARAM_STRING, size); | |
| 119 | commandp[size-1] = 0; | |
| 120 | #elif defined(CONFIG_NETtel) || defined(CONFIG_SCALES) | |
| 121 | /* Copy command line from FLASH to local buffer... */ | |
| 122 | memcpy(commandp, (char *) 0xf0004000, size); | |
| 123 | commandp[size-1] = 0; | |
| 124 | #elif defined(CONFIG_MTD_KeyTechnology) | |
| 125 | /* Copy command line from FLASH to local buffer... */ | |
| 126 | memcpy(commandp, (char *) 0xffe06000, size); | |
| 127 | commandp[size-1] = 0; | |
| 128 | #elif defined(CONFIG_CANCam) | |
| 129 | /* Copy command line from FLASH to local buffer... */ | |
| 130 | memcpy(commandp, (char *) 0xf0010000, size); | |
| 131 | commandp[size-1] = 0; | |
| 132 | #else | |
| 133 | memset(commandp, 0, size); | |
| 134 | #endif | |
| 135 | ||
| 136 | mcf_timervector = 69; | |
| 137 | mcf_profilevector = 70; | |
| 138 | mach_sched_init = coldfire_timer_init; | |
| 139 | mach_tick = coldfire_tick; | |
| 140 | mach_gettimeoffset = coldfire_timer_offset; | |
| 141 | mach_trap_init = coldfire_trap_init; | |
| 142 | mach_reset = coldfire_reset; | |
| 143 | } | |
| 144 | ||
| 145 | /***************************************************************************/ |