| /***************************************************************************/ |
| |
| /* |
| * linux/arch/m68knommu/platform/5272/config.c |
| * |
| * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) |
| * Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com) |
| */ |
| |
| /***************************************************************************/ |
| |
| #include <linux/kernel.h> |
| #include <linux/sched.h> |
| #include <linux/param.h> |
| #include <linux/init.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> |
| |
| /***************************************************************************/ |
| |
| 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); |
| |
| extern unsigned int mcf_timervector; |
| extern unsigned int mcf_profilevector; |
| extern unsigned int mcf_timerlevel; |
| |
| /***************************************************************************/ |
| |
| /* |
| * Some platforms need software versions of the GPIO data registers. |
| */ |
| unsigned short ppdata; |
| unsigned char ledbank = 0xff; |
| |
| /***************************************************************************/ |
| |
| /* |
| * DMA channel base address table. |
| */ |
| unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { |
| MCF_MBAR + MCFDMA_BASE0, |
| }; |
| |
| unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; |
| |
| /***************************************************************************/ |
| |
| void mcf_disableall(void) |
| { |
| volatile unsigned long *icrp; |
| |
| icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); |
| icrp[0] = 0x88888888; |
| icrp[1] = 0x88888888; |
| icrp[2] = 0x88888888; |
| icrp[3] = 0x88888888; |
| } |
| |
| /***************************************************************************/ |
| |
| void mcf_autovector(unsigned int vec) |
| { |
| /* Everything is auto-vectored on the 5272 */ |
| } |
| |
| /***************************************************************************/ |
| |
| void mcf_settimericr(int timer, int level) |
| { |
| volatile unsigned long *icrp; |
| |
| if ((timer >= 1 ) && (timer <= 4)) { |
| icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); |
| *icrp = (0x8 | level) << ((4 - timer) * 4); |
| } |
| } |
| |
| /***************************************************************************/ |
| |
| int mcf_timerirqpending(int timer) |
| { |
| volatile unsigned long *icrp; |
| |
| if ((timer >= 1 ) && (timer <= 4)) { |
| icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); |
| return (*icrp & (0x8 << ((4 - timer) * 4))); |
| } |
| return 0; |
| } |
| |
| /***************************************************************************/ |
| |
| void config_BSP(char *commandp, int size) |
| { |
| #if defined (CONFIG_MOD5272) |
| volatile unsigned char *pivrp; |
| |
| /* Set base of device vectors to be 64 */ |
| pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR); |
| *pivrp = 0x40; |
| #endif |
| |
| mcf_disableall(); |
| |
| #if defined(CONFIG_BOOTPARAM) |
| strncpy(commandp, CONFIG_BOOTPARAM_STRING, size); |
| commandp[size-1] = 0; |
| #elif defined(CONFIG_NETtel) || defined(CONFIG_SCALES) |
| /* Copy command line from FLASH to local buffer... */ |
| memcpy(commandp, (char *) 0xf0004000, size); |
| commandp[size-1] = 0; |
| #elif defined(CONFIG_MTD_KeyTechnology) |
| /* Copy command line from FLASH to local buffer... */ |
| memcpy(commandp, (char *) 0xffe06000, size); |
| commandp[size-1] = 0; |
| #elif defined(CONFIG_CANCam) |
| /* Copy command line from FLASH to local buffer... */ |
| memcpy(commandp, (char *) 0xf0010000, size); |
| commandp[size-1] = 0; |
| #else |
| memset(commandp, 0, size); |
| #endif |
| |
| mcf_timervector = 69; |
| mcf_profilevector = 70; |
| 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; |
| } |
| |
| /***************************************************************************/ |