1/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
2/* $FreeBSD: head/sys/arm/include/machdep.h 262534 2014-02-26 22:06:10Z ian $ */
3
4#ifndef _MACHDEP_BOOT_MACHDEP_H_
5#define _MACHDEP_BOOT_MACHDEP_H_
6
7/* Structs that need to be initialised by initarm */
8struct pv_addr;
9extern struct pv_addr irqstack;
10extern struct pv_addr undstack;
11extern struct pv_addr abtstack;
12
13/* Define various stack sizes in pages */
14#define IRQ_STACK_SIZE 1
15#define ABT_STACK_SIZE 1
16#define UND_STACK_SIZE 1
17
18/* misc prototypes used by the many arm machdeps */
19struct trapframe;
20void arm_lock_cache_line(vm_offset_t);
21void init_proc0(vm_offset_t kstack);
22void halt(void);
23void data_abort_handler(struct trapframe *);
24void prefetch_abort_handler(struct trapframe *);
25void set_stackptrs(int cpu);
26void undefinedinstruction_bounce(struct trapframe *);
27
28/* Early boot related helper functions */
29struct arm_boot_params;
30vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
31vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp);
32vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp);
33vm_offset_t fake_preload_metadata(struct arm_boot_params *abp);
34vm_offset_t parse_boot_param(struct arm_boot_params *abp);
35void arm_generic_initclocks(void);
36
37/*
38 * Initialization functions called by the common initarm() function in
39 * arm/machdep.c (but not necessarily from the custom initarm() functions of
40 * older code).
41 *
42 * - initarm_early_init() is called very early, after parsing the boot params
43 * and after physical memory has been located and sized.
44 *
45 * - initarm_devmap_init() is called as one of the last steps of early virtual
46 * memory initialization, shortly before the new page tables are installed.
47 *
48 * - initarm_lastaddr() is called after initarm_devmap_init(), and must return
49 * the address of the first byte of unusable KVA space. This allows a
50 * platform to carve out of the top of the KVA space whatever reserves it
51 * needs for things like static device mapping, and this is called to get the
52 * value before calling pmap_bootstrap() which uses the value to size the
53 * available KVA.
54 *
55 * - initarm_gpio_init() is called after the static device mappings are
56 * established and just before cninit(). The intention is that the routine
57 * can do any hardware setup (such as gpio or pinmux) necessary to make the
58 * console functional.
59 *
60 * - initarm_late_init() is called just after cninit(). This is the first of
61 * the init routines that can use printf() and expect the output to appear on
62 * a standard console.
63 *
64 */
65void initarm_early_init(void);
66int initarm_devmap_init(void);
67vm_offset_t initarm_lastaddr(void);
68void initarm_gpio_init(void);
69void initarm_late_init(void);
70
71/* Board-specific attributes */
72void board_set_serial(uint64_t);
73void board_set_revision(uint32_t);
74
75#endif /* !_MACHINE_MACHDEP_H_ */