MIPS: Add missing #inclusions of <linux/irq.h>
[linux-2.6-block.git] / arch / mips / include / asm / mach-loongson / loongson.h
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5e983ff6 1/*
6f7a251a 2 * Copyright (C) 2009 Lemote, Inc.
f7a904df 3 * Author: Wu Zhangjin <wuzhangjin@gmail.com>
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4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
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9 */
10
11#ifndef __ASM_MACH_LOONGSON_LOONGSON_H
12#define __ASM_MACH_LOONGSON_LOONGSON_H
13
14#include <linux/io.h>
15#include <linux/init.h>
ca4d3e67 16#include <linux/irq.h>
5e983ff6 17
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18/* loongson internal northbridge initialization */
19extern void bonito_irq_init(void);
20
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21/* machine-specific reboot/halt operation */
22extern void mach_prepare_reboot(void);
23extern void mach_prepare_shutdown(void);
24
5e983ff6 25/* environment arguments from bootloader */
eb11df47 26extern unsigned long cpu_clock_freq;
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27extern unsigned long memsize, highmemsize;
28
29/* loongson-specific command line, env and memory initialization */
30extern void __init prom_init_memory(void);
31extern void __init prom_init_cmdline(void);
04cfb90a 32extern void __init prom_init_machtype(void);
5e983ff6 33extern void __init prom_init_env(void);
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34#ifdef CONFIG_LOONGSON_UART_BASE
35extern unsigned long _loongson_uart_base, loongson_uart_base;
36extern void prom_init_loongson_uart_base(void);
37#endif
38
39static inline void prom_init_uart_base(void)
40{
41#ifdef CONFIG_LOONGSON_UART_BASE
42 prom_init_loongson_uart_base();
43#endif
44}
5e983ff6 45
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46/* irq operation functions */
47extern void bonito_irqdispatch(void);
48extern void __init bonito_irq_init(void);
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49extern void __init mach_init_irq(void);
50extern void mach_irq_dispatch(unsigned int pending);
cb1ed9e1 51extern int mach_i8259_irq(void);
85749d24 52
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53/* We need this in some places... */
54#define delay() ({ \
55 int x; \
56 for (x = 0; x < 100000; x++) \
57 __asm__ __volatile__(""); \
58})
59
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60#define LOONGSON_REG(x) \
61 (*(volatile u32 *)((char *)CKSEG1ADDR(LOONGSON_REG_BASE) + (x)))
62
63#define LOONGSON_IRQ_BASE 32
64#define LOONGSON2_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
65
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66#include <linux/interrupt.h>
67static inline void do_perfcnt_IRQ(void)
68{
69#if defined(CONFIG_OPROFILE) || defined(CONFIG_OPROFILE_MODULE)
70 do_IRQ(LOONGSON2_PERFCNT_IRQ);
71#endif
72}
73
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74#define LOONGSON_FLASH_BASE 0x1c000000
75#define LOONGSON_FLASH_SIZE 0x02000000 /* 32M */
76#define LOONGSON_FLASH_TOP (LOONGSON_FLASH_BASE+LOONGSON_FLASH_SIZE-1)
77
78#define LOONGSON_LIO0_BASE 0x1e000000
79#define LOONGSON_LIO0_SIZE 0x01C00000 /* 28M */
80#define LOONGSON_LIO0_TOP (LOONGSON_LIO0_BASE+LOONGSON_LIO0_SIZE-1)
81
82#define LOONGSON_BOOT_BASE 0x1fc00000
83#define LOONGSON_BOOT_SIZE 0x00100000 /* 1M */
84#define LOONGSON_BOOT_TOP (LOONGSON_BOOT_BASE+LOONGSON_BOOT_SIZE-1)
85#define LOONGSON_REG_BASE 0x1fe00000
86#define LOONGSON_REG_SIZE 0x00100000 /* 256Bytes + 256Bytes + ??? */
87#define LOONGSON_REG_TOP (LOONGSON_REG_BASE+LOONGSON_REG_SIZE-1)
88
89#define LOONGSON_LIO1_BASE 0x1ff00000
90#define LOONGSON_LIO1_SIZE 0x00100000 /* 1M */
91#define LOONGSON_LIO1_TOP (LOONGSON_LIO1_BASE+LOONGSON_LIO1_SIZE-1)
92
93#define LOONGSON_PCILO0_BASE 0x10000000
94#define LOONGSON_PCILO1_BASE 0x14000000
95#define LOONGSON_PCILO2_BASE 0x18000000
96#define LOONGSON_PCILO_BASE LOONGSON_PCILO0_BASE
97#define LOONGSON_PCILO_SIZE 0x0c000000 /* 64M * 3 */
98#define LOONGSON_PCILO_TOP (LOONGSON_PCILO0_BASE+LOONGSON_PCILO_SIZE-1)
99
100#define LOONGSON_PCICFG_BASE 0x1fe80000
101#define LOONGSON_PCICFG_SIZE 0x00000800 /* 2K */
102#define LOONGSON_PCICFG_TOP (LOONGSON_PCICFG_BASE+LOONGSON_PCICFG_SIZE-1)
103#define LOONGSON_PCIIO_BASE 0x1fd00000
104#define LOONGSON_PCIIO_SIZE 0x00100000 /* 1M */
105#define LOONGSON_PCIIO_TOP (LOONGSON_PCIIO_BASE+LOONGSON_PCIIO_SIZE-1)
106
107/* Loongson Register Bases */
108
109#define LOONGSON_PCICONFIGBASE 0x00
110#define LOONGSON_REGBASE 0x100
111
f7face03 112/* PCI Configuration Registers */
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113
114#define LOONGSON_PCI_REG(x) LOONGSON_REG(LOONGSON_PCICONFIGBASE + (x))
115#define LOONGSON_PCIDID LOONGSON_PCI_REG(0x00)
116#define LOONGSON_PCICMD LOONGSON_PCI_REG(0x04)
117#define LOONGSON_PCICLASS LOONGSON_PCI_REG(0x08)
118#define LOONGSON_PCILTIMER LOONGSON_PCI_REG(0x0c)
119#define LOONGSON_PCIBASE0 LOONGSON_PCI_REG(0x10)
120#define LOONGSON_PCIBASE1 LOONGSON_PCI_REG(0x14)
121#define LOONGSON_PCIBASE2 LOONGSON_PCI_REG(0x18)
122#define LOONGSON_PCIBASE3 LOONGSON_PCI_REG(0x1c)
123#define LOONGSON_PCIBASE4 LOONGSON_PCI_REG(0x20)
124#define LOONGSON_PCIEXPRBASE LOONGSON_PCI_REG(0x30)
125#define LOONGSON_PCIINT LOONGSON_PCI_REG(0x3c)
126
127#define LOONGSON_PCI_ISR4C LOONGSON_PCI_REG(0x4c)
128
129#define LOONGSON_PCICMD_PERR_CLR 0x80000000
130#define LOONGSON_PCICMD_SERR_CLR 0x40000000
131#define LOONGSON_PCICMD_MABORT_CLR 0x20000000
132#define LOONGSON_PCICMD_MTABORT_CLR 0x10000000
133#define LOONGSON_PCICMD_TABORT_CLR 0x08000000
134#define LOONGSON_PCICMD_MPERR_CLR 0x01000000
135#define LOONGSON_PCICMD_PERRRESPEN 0x00000040
136#define LOONGSON_PCICMD_ASTEPEN 0x00000080
137#define LOONGSON_PCICMD_SERREN 0x00000100
138#define LOONGSON_PCILTIMER_BUSLATENCY 0x0000ff00
139#define LOONGSON_PCILTIMER_BUSLATENCY_SHIFT 8
140
141/* Loongson h/w Configuration */
142
143#define LOONGSON_GENCFG_OFFSET 0x4
144#define LOONGSON_GENCFG LOONGSON_REG(LOONGSON_REGBASE + LOONGSON_GENCFG_OFFSET)
145
146#define LOONGSON_GENCFG_DEBUGMODE 0x00000001
147#define LOONGSON_GENCFG_SNOOPEN 0x00000002
148#define LOONGSON_GENCFG_CPUSELFRESET 0x00000004
149
150#define LOONGSON_GENCFG_FORCE_IRQA 0x00000008
151#define LOONGSON_GENCFG_IRQA_ISOUT 0x00000010
152#define LOONGSON_GENCFG_IRQA_FROM_INT1 0x00000020
153#define LOONGSON_GENCFG_BYTESWAP 0x00000040
154
155#define LOONGSON_GENCFG_UNCACHED 0x00000080
156#define LOONGSON_GENCFG_PREFETCHEN 0x00000100
157#define LOONGSON_GENCFG_WBEHINDEN 0x00000200
158#define LOONGSON_GENCFG_CACHEALG 0x00000c00
159#define LOONGSON_GENCFG_CACHEALG_SHIFT 10
160#define LOONGSON_GENCFG_PCIQUEUE 0x00001000
161#define LOONGSON_GENCFG_CACHESTOP 0x00002000
162#define LOONGSON_GENCFG_MSTRBYTESWAP 0x00004000
163#define LOONGSON_GENCFG_BUSERREN 0x00008000
164#define LOONGSON_GENCFG_NORETRYTIMEOUT 0x00010000
165#define LOONGSON_GENCFG_SHORTCOPYTIMEOUT 0x00020000
166
167/* PCI address map control */
168
169#define LOONGSON_PCIMAP LOONGSON_REG(LOONGSON_REGBASE + 0x10)
170#define LOONGSON_PCIMEMBASECFG LOONGSON_REG(LOONGSON_REGBASE + 0x14)
171#define LOONGSON_PCIMAP_CFG LOONGSON_REG(LOONGSON_REGBASE + 0x18)
172
173/* GPIO Regs - r/w */
174
175#define LOONGSON_GPIODATA LOONGSON_REG(LOONGSON_REGBASE + 0x1c)
176#define LOONGSON_GPIOIE LOONGSON_REG(LOONGSON_REGBASE + 0x20)
177
178/* ICU Configuration Regs - r/w */
179
180#define LOONGSON_INTEDGE LOONGSON_REG(LOONGSON_REGBASE + 0x24)
181#define LOONGSON_INTSTEER LOONGSON_REG(LOONGSON_REGBASE + 0x28)
182#define LOONGSON_INTPOL LOONGSON_REG(LOONGSON_REGBASE + 0x2c)
183
184/* ICU Enable Regs - IntEn & IntISR are r/o. */
185
186#define LOONGSON_INTENSET LOONGSON_REG(LOONGSON_REGBASE + 0x30)
187#define LOONGSON_INTENCLR LOONGSON_REG(LOONGSON_REGBASE + 0x34)
188#define LOONGSON_INTEN LOONGSON_REG(LOONGSON_REGBASE + 0x38)
189#define LOONGSON_INTISR LOONGSON_REG(LOONGSON_REGBASE + 0x3c)
190
191/* ICU */
192#define LOONGSON_ICU_MBOXES 0x0000000f
193#define LOONGSON_ICU_MBOXES_SHIFT 0
194#define LOONGSON_ICU_DMARDY 0x00000010
195#define LOONGSON_ICU_DMAEMPTY 0x00000020
196#define LOONGSON_ICU_COPYRDY 0x00000040
197#define LOONGSON_ICU_COPYEMPTY 0x00000080
198#define LOONGSON_ICU_COPYERR 0x00000100
199#define LOONGSON_ICU_PCIIRQ 0x00000200
200#define LOONGSON_ICU_MASTERERR 0x00000400
201#define LOONGSON_ICU_SYSTEMERR 0x00000800
202#define LOONGSON_ICU_DRAMPERR 0x00001000
203#define LOONGSON_ICU_RETRYERR 0x00002000
204#define LOONGSON_ICU_GPIOS 0x01ff0000
205#define LOONGSON_ICU_GPIOS_SHIFT 16
206#define LOONGSON_ICU_GPINS 0x7e000000
207#define LOONGSON_ICU_GPINS_SHIFT 25
208#define LOONGSON_ICU_MBOX(N) (1<<(LOONGSON_ICU_MBOXES_SHIFT+(N)))
209#define LOONGSON_ICU_GPIO(N) (1<<(LOONGSON_ICU_GPIOS_SHIFT+(N)))
210#define LOONGSON_ICU_GPIN(N) (1<<(LOONGSON_ICU_GPINS_SHIFT+(N)))
211
212/* PCI prefetch window base & mask */
213
214#define LOONGSON_MEM_WIN_BASE_L LOONGSON_REG(LOONGSON_REGBASE + 0x40)
215#define LOONGSON_MEM_WIN_BASE_H LOONGSON_REG(LOONGSON_REGBASE + 0x44)
216#define LOONGSON_MEM_WIN_MASK_L LOONGSON_REG(LOONGSON_REGBASE + 0x48)
217#define LOONGSON_MEM_WIN_MASK_H LOONGSON_REG(LOONGSON_REGBASE + 0x4c)
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218
219/* PCI_Hit*_Sel_* */
220
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221#define LOONGSON_PCI_HIT0_SEL_L LOONGSON_REG(LOONGSON_REGBASE + 0x50)
222#define LOONGSON_PCI_HIT0_SEL_H LOONGSON_REG(LOONGSON_REGBASE + 0x54)
223#define LOONGSON_PCI_HIT1_SEL_L LOONGSON_REG(LOONGSON_REGBASE + 0x58)
224#define LOONGSON_PCI_HIT1_SEL_H LOONGSON_REG(LOONGSON_REGBASE + 0x5c)
225#define LOONGSON_PCI_HIT2_SEL_L LOONGSON_REG(LOONGSON_REGBASE + 0x60)
226#define LOONGSON_PCI_HIT2_SEL_H LOONGSON_REG(LOONGSON_REGBASE + 0x64)
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227
228/* PXArb Config & Status */
229
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230#define LOONGSON_PXARB_CFG LOONGSON_REG(LOONGSON_REGBASE + 0x68)
231#define LOONGSON_PXARB_STATUS LOONGSON_REG(LOONGSON_REGBASE + 0x6c)
232
233/* pcimap */
f7face03 234
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235#define LOONGSON_PCIMAP_PCIMAP_LO0 0x0000003f
236#define LOONGSON_PCIMAP_PCIMAP_LO0_SHIFT 0
237#define LOONGSON_PCIMAP_PCIMAP_LO1 0x00000fc0
238#define LOONGSON_PCIMAP_PCIMAP_LO1_SHIFT 6
239#define LOONGSON_PCIMAP_PCIMAP_LO2 0x0003f000
240#define LOONGSON_PCIMAP_PCIMAP_LO2_SHIFT 12
241#define LOONGSON_PCIMAP_PCIMAP_2 0x00040000
242#define LOONGSON_PCIMAP_WIN(WIN, ADDR) \
243 ((((ADDR)>>26) & LOONGSON_PCIMAP_PCIMAP_LO0) << ((WIN)*6))
67b35e5d 244
55045ff5 245#ifdef CONFIG_CPU_SUPPORTS_CPUFREQ
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246#include <linux/cpufreq.h>
247extern void loongson2_cpu_wait(void);
248extern struct cpufreq_frequency_table loongson2_clockmod_table[];
249
250/* Chip Config */
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251#define LOONGSON_CHIPCFG0 LOONGSON_REG(LOONGSON_REGBASE + 0x80)
252#endif
253
254/*
255 * address windows configuration module
256 *
257 * loongson2e do not have this module
258 */
55045ff5 259#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
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260
261/* address window config module base address */
262#define LOONGSON_ADDRWINCFG_BASE 0x3ff00000ul
263#define LOONGSON_ADDRWINCFG_SIZE 0x180
264
265extern unsigned long _loongson_addrwincfg_base;
266#define LOONGSON_ADDRWINCFG(offset) \
267 (*(volatile u64 *)(_loongson_addrwincfg_base + (offset)))
268
269#define CPU_WIN0_BASE LOONGSON_ADDRWINCFG(0x00)
270#define CPU_WIN1_BASE LOONGSON_ADDRWINCFG(0x08)
271#define CPU_WIN2_BASE LOONGSON_ADDRWINCFG(0x10)
272#define CPU_WIN3_BASE LOONGSON_ADDRWINCFG(0x18)
273
274#define CPU_WIN0_MASK LOONGSON_ADDRWINCFG(0x20)
275#define CPU_WIN1_MASK LOONGSON_ADDRWINCFG(0x28)
276#define CPU_WIN2_MASK LOONGSON_ADDRWINCFG(0x30)
277#define CPU_WIN3_MASK LOONGSON_ADDRWINCFG(0x38)
278
279#define CPU_WIN0_MMAP LOONGSON_ADDRWINCFG(0x40)
280#define CPU_WIN1_MMAP LOONGSON_ADDRWINCFG(0x48)
281#define CPU_WIN2_MMAP LOONGSON_ADDRWINCFG(0x50)
282#define CPU_WIN3_MMAP LOONGSON_ADDRWINCFG(0x58)
283
284#define PCIDMA_WIN0_BASE LOONGSON_ADDRWINCFG(0x60)
285#define PCIDMA_WIN1_BASE LOONGSON_ADDRWINCFG(0x68)
286#define PCIDMA_WIN2_BASE LOONGSON_ADDRWINCFG(0x70)
287#define PCIDMA_WIN3_BASE LOONGSON_ADDRWINCFG(0x78)
288
289#define PCIDMA_WIN0_MASK LOONGSON_ADDRWINCFG(0x80)
290#define PCIDMA_WIN1_MASK LOONGSON_ADDRWINCFG(0x88)
291#define PCIDMA_WIN2_MASK LOONGSON_ADDRWINCFG(0x90)
292#define PCIDMA_WIN3_MASK LOONGSON_ADDRWINCFG(0x98)
293
294#define PCIDMA_WIN0_MMAP LOONGSON_ADDRWINCFG(0xa0)
295#define PCIDMA_WIN1_MMAP LOONGSON_ADDRWINCFG(0xa8)
296#define PCIDMA_WIN2_MMAP LOONGSON_ADDRWINCFG(0xb0)
297#define PCIDMA_WIN3_MMAP LOONGSON_ADDRWINCFG(0xb8)
298
299#define ADDRWIN_WIN0 0
300#define ADDRWIN_WIN1 1
301#define ADDRWIN_WIN2 2
302#define ADDRWIN_WIN3 3
303
304#define ADDRWIN_MAP_DST_DDR 0
305#define ADDRWIN_MAP_DST_PCI 1
306#define ADDRWIN_MAP_DST_LIO 1
307
308/*
309 * s: CPU, PCIDMA
310 * d: DDR, PCI, LIO
311 * win: 0, 1, 2, 3
312 * src: map source
313 * dst: map destination
314 * size: ~mask + 1
315 */
316#define LOONGSON_ADDRWIN_CFG(s, d, w, src, dst, size) do {\
317 s##_WIN##w##_BASE = (src); \
94c26c9a 318 s##_WIN##w##_MMAP = (dst) | ADDRWIN_MAP_DST_##d; \
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319 s##_WIN##w##_MASK = ~(size-1); \
320} while (0)
321
322#define LOONGSON_ADDRWIN_CPUTOPCI(win, src, dst, size) \
323 LOONGSON_ADDRWIN_CFG(CPU, PCI, win, src, dst, size)
324#define LOONGSON_ADDRWIN_CPUTODDR(win, src, dst, size) \
325 LOONGSON_ADDRWIN_CFG(CPU, DDR, win, src, dst, size)
326#define LOONGSON_ADDRWIN_PCITODDR(win, src, dst, size) \
327 LOONGSON_ADDRWIN_CFG(PCIDMA, DDR, win, src, dst, size)
328
55045ff5 329#endif /* ! CONFIG_CPU_SUPPORTS_ADDRWINCFG */
6f7a251a 330
5e983ff6 331#endif /* __ASM_MACH_LOONGSON_LOONGSON_H */