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/arch/m68knommu/platform/528x/config.c

https://bitbucket.org/evzijst/gittest
C | 82 lines | 44 code | 17 blank | 21 comment | 0 complexity | cf5a548fa584ea6ded084d0e6ae4a9d2 MD5 | raw file
 1/***************************************************************************/
 2
 3/*
 4 *	linux/arch/m68knommu/platform/528x/config.c
 5 *
 6 *	Sub-architcture dependant initialization code for the Motorola
 7 *	5280 and 5282 CPUs.
 8 *
 9 *	Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
10 *	Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
11 */
12
13/***************************************************************************/
14
15#include <linux/config.h>
16#include <linux/kernel.h>
17#include <linux/sched.h>
18#include <linux/param.h>
19#include <linux/init.h>
20#include <linux/interrupt.h>
21#include <asm/dma.h>
22#include <asm/traps.h>
23#include <asm/machdep.h>
24#include <asm/coldfire.h>
25#include <asm/mcfsim.h>
26#include <asm/mcfdma.h>
27
28/***************************************************************************/
29
30void coldfire_pit_tick(void);
31void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
32unsigned long coldfire_pit_offset(void);
33void coldfire_trap_init(void);
34void coldfire_reset(void);
35
36/***************************************************************************/
37
38/*
39 *	DMA channel base address table.
40 */
41unsigned int   dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
42        MCF_MBAR + MCFDMA_BASE0,
43};
44
45unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
46
47/***************************************************************************/
48
49void mcf_disableall(void)
50{
51	*((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff;
52	*((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff;
53}
54
55/***************************************************************************/
56
57void mcf_autovector(unsigned int vec)
58{
59	/* Everything is auto-vectored on the 5272 */
60}
61
62/***************************************************************************/
63
64void config_BSP(char *commandp, int size)
65{
66	mcf_disableall();
67
68#ifdef CONFIG_BOOTPARAM
69	strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
70	commandp[size-1] = 0;
71#else
72	memset(commandp, 0, size);
73#endif
74
75	mach_sched_init = coldfire_pit_init;
76	mach_tick = coldfire_pit_tick;
77	mach_gettimeoffset = coldfire_pit_offset;
78	mach_trap_init = coldfire_trap_init;
79	mach_reset = coldfire_reset;
80}
81
82/***************************************************************************/