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1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2002
4  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
5  * Marius Groeger <mgroeger@sysgo.de>
6  *
7  * (C) Copyright 2002
8  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
9  * Alex Zuepke <azu@sysgo.de>
10  */
11 
12 #ifndef _U_BOOT_ARM_H_
13 #define _U_BOOT_ARM_H_	1
14 
15 #ifndef __ASSEMBLY__
16 
17 /* for the following variables, see start.S */
18 extern ulong IRQ_STACK_START;	/* top of IRQ stack */
19 extern ulong FIQ_STACK_START;	/* top of FIQ stack */
20 extern ulong _datarel_start_ofs;
21 extern ulong _datarelrolocal_start_ofs;
22 extern ulong _datarellocal_start_ofs;
23 extern ulong _datarelro_start_ofs;
24 extern ulong IRQ_STACK_START_IN;	/* 8 bytes in IRQ stack */
25 
26 /* cpu/.../cpu.c */
27 int	cpu_init(void);
28 int	cleanup_before_linux(void);
29 
30 /* Set up ARMv7 MMU, caches and TLBs */
31 void	cpu_init_cp15(void);
32 
33 /* cpu/.../arch/cpu.c */
34 int	arch_cpu_init(void);
35 int	arch_misc_init(void);
36 int	arch_early_init_r(void);
37 
38 /* board/.../... */
39 int	board_init(void);
40 
41 /* cpu/.../interrupt.c */
42 int	arch_interrupt_init	(void);
43 void	reset_timer_masked	(void);
44 ulong	get_timer_masked	(void);
45 void	udelay_masked		(unsigned long usec);
46 
47 /* calls to c from vectors.S */
48 struct pt_regs;
49 
50 void bad_mode(void);
51 void do_undefined_instruction(struct pt_regs *pt_regs);
52 void do_software_interrupt(struct pt_regs *pt_regs);
53 void do_prefetch_abort(struct pt_regs *pt_regs);
54 void do_data_abort(struct pt_regs *pt_regs);
55 void do_not_used(struct pt_regs *pt_regs);
56 #ifdef CONFIG_ARM64
57 void do_fiq(struct pt_regs *pt_regs, unsigned int esr);
58 void do_irq(struct pt_regs *pt_regs, unsigned int esr);
59 #else
60 void do_fiq(struct pt_regs *pt_regs);
61 void do_irq(struct pt_regs *pt_regswq);
62 #endif
63 
64 #endif /* __ASSEMBLY__ */
65 
66 #endif	/* _U_BOOT_ARM_H_ */
67