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xlr.h
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1 /*
2  * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
3  * reserved.
4  *
5  * This software is available to you under a choice of one of two
6  * licenses. You may choose to be licensed under the terms of the GNU
7  * General Public License (GPL) Version 2, available from the file
8  * COPYING in the main directory of this source tree, or the NetLogic
9  * license below:
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  *
15  * 1. Redistributions of source code must retain the above copyright
16  * notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
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21  *
22  * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
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33  */
34 
35 #ifndef _ASM_NLM_XLR_H
36 #define _ASM_NLM_XLR_H
37 
38 /* Platform UART functions */
39 struct uart_port;
40 unsigned int nlm_xlr_uart_in(struct uart_port *, int);
41 void nlm_xlr_uart_out(struct uart_port *, int, int);
42 
43 /* SMP helpers */
44 void xlr_wakeup_secondary_cpus(void);
45 
46 /* XLS B silicon "Rook" */
47 static inline unsigned int nlm_chip_is_xls_b(void)
48 {
49  uint32_t prid = read_c0_prid();
50 
51  return ((prid & 0xf000) == 0x4000);
52 }
53 
54 /*
55  * XLR chip types
56  */
57  /* The XLS product line has chip versions 0x[48c]? */
58 static inline unsigned int nlm_chip_is_xls(void)
59 {
60  uint32_t prid = read_c0_prid();
61 
62  return ((prid & 0xf000) == 0x8000 || (prid & 0xf000) == 0x4000 ||
63  (prid & 0xf000) == 0xc000);
64 }
65 
66 #endif /* _ASM_NLM_XLR_H */