diff options
Diffstat (limited to 'arch/m68knommu/platform/5307/config.c')
-rw-r--r-- | arch/m68knommu/platform/5307/config.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/5307/config.c b/arch/m68knommu/platform/5307/config.c new file mode 100644 index 00000000000..7ed5782e923 --- /dev/null +++ b/arch/m68knommu/platform/5307/config.c @@ -0,0 +1,148 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5307/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000, Lineo (www.lineo.com) + */ + +/***************************************************************************/ + +#include <linux/config.h> +#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> +#include <asm/mcfwdebug.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, + MCF_MBAR + MCFDMA_BASE1, + MCF_MBAR + MCFDMA_BASE2, + MCF_MBAR + MCFDMA_BASE3, +}; + +unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; + +/***************************************************************************/ + +void mcf_autovector(unsigned int vec) +{ + volatile unsigned char *mbar; + + if ((vec >= 25) && (vec <= 31)) { + mbar = (volatile unsigned char *) MCF_MBAR; + vec = 0x1 << (vec - 24); + *(mbar + MCFSIM_AVR) |= vec; + 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) || defined(CONFIG_eLIA) || \ + defined(CONFIG_DISKtel) || defined(CONFIG_SECUREEDGEMP3) || \ + defined(CONFIG_CLEOPATRA) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0xf0004000, size); + commandp[size-1] = 0; + /* Different timer setup - to prevent device clash */ + mcf_timervector = 30; + mcf_profilevector = 31; + mcf_timerlevel = 6; +#else + memset(commandp, 0, size); +#endif + + 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; + +#ifdef MCF_BDM_DISABLE + /* + * Disable the BDM clocking. This also turns off most of the rest of + * the BDM device. This is good for EMC reasons. This option is not + * incompatible with the memory protection option. + */ + wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); +#endif +} + +/***************************************************************************/ |