diff options
author | Greg Ungerer <gerg@snapgear.com> | 2005-09-02 10:42:52 +1000 |
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committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-02 00:57:29 -0700 |
commit | b5aaf3f71cf5a6115cf76671b011de0209223fc2 (patch) | |
tree | 29a2f997df94da3de8dc43903f1f89661c3a33c1 /arch/m68knommu/platform/523x/config.c | |
parent | 138307b475286a5bcc985b06b3e71fcd33dd5e2c (diff) | |
download | op-kernel-dev-b5aaf3f71cf5a6115cf76671b011de0209223fc2.zip op-kernel-dev-b5aaf3f71cf5a6115cf76671b011de0209223fc2.tar.gz |
[PATCH] m68knommu: 523x ColdFire processor init code
Low level initialization code for the 523x ColdFire processor family.
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m68knommu/platform/523x/config.c')
-rw-r--r-- | arch/m68knommu/platform/523x/config.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68knommu/platform/523x/config.c new file mode 100644 index 0000000..22767ce --- /dev/null +++ b/arch/m68knommu/platform/523x/config.c @@ -0,0 +1,82 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/523x/config.c + * + * Sub-architcture dependant initialization code for the Freescale + * 523x CPUs. + * + * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2003, 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/dma.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfdma.h> + +/***************************************************************************/ + +void coldfire_pit_tick(void); +void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); +unsigned long coldfire_pit_offset(void); +void coldfire_trap_init(void); +void coldfire_reset(void); + +/***************************************************************************/ + +/* + * 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 *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff; + *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff; +} + +/***************************************************************************/ + +void mcf_autovector(unsigned int vec) +{ + /* Everything is auto-vectored on the 5272 */ +} + +/***************************************************************************/ + +void config_BSP(char *commandp, int size) +{ + mcf_disableall(); + +#ifdef CONFIG_BOOTPARAM + strncpy(commandp, CONFIG_BOOTPARAM_STRING, size); + commandp[size-1] = 0; +#else + memset(commandp, 0, size); +#endif + + mach_sched_init = coldfire_pit_init; + mach_tick = coldfire_pit_tick; + mach_gettimeoffset = coldfire_pit_offset; + mach_trap_init = coldfire_trap_init; + mach_reset = coldfire_reset; +} + +/***************************************************************************/ |