Merge tag 'iwlwifi-next-for-kalle-2014-12-30' of https://git.kernel.org/pub/scm/linux...
[cascardo/linux.git] / arch / mips / include / asm / bmips.h
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 2011 by Kevin Cernekee (cernekee@gmail.com)
7  *
8  * Definitions for BMIPS processors
9  */
10 #ifndef _ASM_BMIPS_H
11 #define _ASM_BMIPS_H
12
13 #include <linux/compiler.h>
14 #include <linux/linkage.h>
15 #include <asm/addrspace.h>
16 #include <asm/mipsregs.h>
17 #include <asm/hazards.h>
18
19 /* NOTE: the CBR register returns a PA, and it can be above 0xff00_0000 */
20 #define BMIPS_GET_CBR()                 ((void __iomem *)(CKSEG1 | \
21                                          (unsigned long) \
22                                          ((read_c0_brcm_cbr() >> 18) << 18)))
23
24 #define BMIPS_RAC_CONFIG                0x00000000
25 #define BMIPS_RAC_ADDRESS_RANGE         0x00000004
26 #define BMIPS_RAC_CONFIG_1              0x00000008
27 #define BMIPS_L2_CONFIG                 0x0000000c
28 #define BMIPS_LMB_CONTROL               0x0000001c
29 #define BMIPS_SYSTEM_BASE               0x00000020
30 #define BMIPS_PERF_GLOBAL_CONTROL       0x00020000
31 #define BMIPS_PERF_CONTROL_0            0x00020004
32 #define BMIPS_PERF_CONTROL_1            0x00020008
33 #define BMIPS_PERF_COUNTER_0            0x00020010
34 #define BMIPS_PERF_COUNTER_1            0x00020014
35 #define BMIPS_PERF_COUNTER_2            0x00020018
36 #define BMIPS_PERF_COUNTER_3            0x0002001c
37 #define BMIPS_RELO_VECTOR_CONTROL_0     0x00030000
38 #define BMIPS_RELO_VECTOR_CONTROL_1     0x00038000
39
40 #define BMIPS_NMI_RESET_VEC             0x80000000
41 #define BMIPS_WARM_RESTART_VEC          0x80000380
42
43 #define ZSCM_REG_BASE                   0x97000000
44
45 #if !defined(__ASSEMBLY__)
46
47 #include <linux/cpumask.h>
48 #include <asm/r4kcache.h>
49 #include <asm/smp-ops.h>
50
51 extern struct plat_smp_ops bmips43xx_smp_ops;
52 extern struct plat_smp_ops bmips5000_smp_ops;
53
54 static inline int register_bmips_smp_ops(void)
55 {
56 #if IS_ENABLED(CONFIG_CPU_BMIPS) && IS_ENABLED(CONFIG_SMP)
57         switch (current_cpu_type()) {
58         case CPU_BMIPS32:
59         case CPU_BMIPS3300:
60                 return register_up_smp_ops();
61         case CPU_BMIPS4350:
62         case CPU_BMIPS4380:
63                 register_smp_ops(&bmips43xx_smp_ops);
64                 break;
65         case CPU_BMIPS5000:
66                 register_smp_ops(&bmips5000_smp_ops);
67                 break;
68         default:
69                 return -ENODEV;
70         }
71
72         return 0;
73 #else
74         return -ENODEV;
75 #endif
76 }
77
78 extern char bmips_reset_nmi_vec;
79 extern char bmips_reset_nmi_vec_end;
80 extern char bmips_smp_movevec;
81 extern char bmips_smp_int_vec;
82 extern char bmips_smp_int_vec_end;
83
84 extern int bmips_smp_enabled;
85 extern int bmips_cpu_offset;
86 extern cpumask_t bmips_booted_mask;
87 extern unsigned long bmips_tp1_irqs;
88
89 extern void bmips_ebase_setup(void);
90 extern asmlinkage void plat_wired_tlb_setup(void);
91
92 static inline unsigned long bmips_read_zscm_reg(unsigned int offset)
93 {
94         unsigned long ret;
95
96         barrier();
97         cache_op(Index_Load_Tag_S, ZSCM_REG_BASE + offset);
98         __sync();
99         _ssnop();
100         _ssnop();
101         _ssnop();
102         _ssnop();
103         _ssnop();
104         _ssnop();
105         _ssnop();
106         ret = read_c0_ddatalo();
107         _ssnop();
108
109         return ret;
110 }
111
112 static inline void bmips_write_zscm_reg(unsigned int offset, unsigned long data)
113 {
114         write_c0_ddatalo(data);
115         _ssnop();
116         _ssnop();
117         _ssnop();
118         cache_op(Index_Store_Tag_S, ZSCM_REG_BASE + offset);
119         _ssnop();
120         _ssnop();
121         _ssnop();
122         barrier();
123 }
124
125 #endif /* !defined(__ASSEMBLY__) */
126
127 #endif /* _ASM_BMIPS_H */