diff options
Diffstat (limited to 'arch/m68knommu/platform/5272/config.c')
| -rw-r--r-- | arch/m68knommu/platform/5272/config.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/5272/config.c b/arch/m68knommu/platform/5272/config.c new file mode 100644 index 000000000000..5cb28690f89a --- /dev/null +++ b/arch/m68knommu/platform/5272/config.c @@ -0,0 +1,145 @@ +/***************************************************************************/ + +/* + * 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/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> + +/***************************************************************************/ + +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 0 + volatile unsigned long *pivrp; + + /* Set base of device vectors to be 64 */ + pivrp = (volatile unsigned long *) (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; +} + +/***************************************************************************/ |