xref: /OK3568_Linux_fs/kernel/arch/powerpc/boot/of.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _PPC_BOOT_OF_H_
3*4882a593Smuzhiyun #define _PPC_BOOT_OF_H_
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include "swab.h"
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun typedef void *phandle;
8*4882a593Smuzhiyun typedef u32 ihandle;
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun void of_init(void *promptr);
11*4882a593Smuzhiyun int of_call_prom(const char *service, int nargs, int nret, ...);
12*4882a593Smuzhiyun unsigned int of_claim(unsigned long virt, unsigned long size,
13*4882a593Smuzhiyun 	unsigned long align);
14*4882a593Smuzhiyun void *of_vmlinux_alloc(unsigned long size);
15*4882a593Smuzhiyun void of_exit(void);
16*4882a593Smuzhiyun void *of_finddevice(const char *name);
17*4882a593Smuzhiyun int of_getprop(const void *phandle, const char *name, void *buf,
18*4882a593Smuzhiyun 	       const int buflen);
19*4882a593Smuzhiyun int of_setprop(const void *phandle, const char *name, const void *buf,
20*4882a593Smuzhiyun 	       const int buflen);
21*4882a593Smuzhiyun 
22*4882a593Smuzhiyun /* Console functions */
23*4882a593Smuzhiyun void of_console_init(void);
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun typedef u16			__be16;
26*4882a593Smuzhiyun typedef u32			__be32;
27*4882a593Smuzhiyun typedef u64			__be64;
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun #ifdef __LITTLE_ENDIAN__
30*4882a593Smuzhiyun #define cpu_to_be16(x) swab16(x)
31*4882a593Smuzhiyun #define be16_to_cpu(x) swab16(x)
32*4882a593Smuzhiyun #define cpu_to_be32(x) swab32(x)
33*4882a593Smuzhiyun #define be32_to_cpu(x) swab32(x)
34*4882a593Smuzhiyun #define cpu_to_be64(x) swab64(x)
35*4882a593Smuzhiyun #define be64_to_cpu(x) swab64(x)
36*4882a593Smuzhiyun #else
37*4882a593Smuzhiyun #define cpu_to_be16(x) (x)
38*4882a593Smuzhiyun #define be16_to_cpu(x) (x)
39*4882a593Smuzhiyun #define cpu_to_be32(x) (x)
40*4882a593Smuzhiyun #define be32_to_cpu(x) (x)
41*4882a593Smuzhiyun #define cpu_to_be64(x) (x)
42*4882a593Smuzhiyun #define be64_to_cpu(x) (x)
43*4882a593Smuzhiyun #endif
44*4882a593Smuzhiyun 
45*4882a593Smuzhiyun #define PROM_ERROR (-1u)
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun #endif /* _PPC_BOOT_OF_H_ */
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