blob: 2be6e705cf9aefade4cfcc8593656738da13beb9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
* Memory and machine-specific definitions. Used in C and assembler.
*/
/*
* Sizes
*/
#define BI2BY 8 /* bits per byte */
#define BI2WD 32 /* bits per word */
#define BY2WD 4 /* bytes per word */
#define BY2V 8 /* bytes per double word */
#define BY2PG 4096 /* bytes per page */
#define WD2PG (BY2PG/BY2WD) /* words per page */
#define PGSHIFT 12 /* log(BY2PG) */
#define ROUND(s, sz) (((s)+(sz-1))&~(sz-1))
#define PGROUND(s) ROUND(s, BY2PG)
#define BLOCKALIGN 8
#define MAXMACH 1 /* max # cpus system can run */
/*
* Time
*/
#define HZ (20) /* clock frequency */
#define MS2HZ (1000/HZ) /* millisec per clock tick */
#define TK2SEC(t) ((t)/HZ) /* ticks to seconds */
#define TK2MS(t) ((((ulong)(t))*1000)/HZ) /* ticks to milliseconds */
#define MS2TK(t) ((((ulong)(t))*HZ)/1000) /* milliseconds to ticks */
/*
* Virtual addresses:
*
* We direct map all discovered DRAM and the area twixt 0xe0000000 and
* 0xe8000000 used to provide zeros for cache flushing.
*
* Flash is mapped to 0xb0000000 and special registers are mapped
* on demand to areas starting at 0xa0000000.
*
* The direct mapping is convenient but not necessary. It means
* that we don't have to turn on the MMU till well into the
* kernel. This can be changed by providing a mapping in l.s
* before calling main.
*/
#define UZERO 0 /* base of user address space */
#define UTZERO (UZERO+BY2PG) /* first address in user text */
#define KZERO 0xC0000000 /* base of kernel address space */
#define KTZERO 0xC0008000 /* first address in kernel text */
#define EMEMZERO 0x90000000 /* 256 meg for add on memory */
#define EMEMTOP 0xA0000000 /* ... */
#define REGZERO 0xA0000000 /* 128 meg for mapspecial regs */
#define REGTOP 0xA8000000 /* ... */
#define FLASHZERO 0xB0000000 /* 128 meg for flash */
#define FLASHTOP 0xB8000000 /* ... */
#define DRAMZERO 0xC0000000 /* 128 meg for dram */
#define DRAMTOP 0xC8000000 /* ... */
#define UCDRAMZERO 0xC8000000 /* 128 meg for dram (uncached/unbuffered) */
#define UCDRAMTOP 0xD0000000 /* ... */
#define NULLZERO 0xE0000000 /* 128 meg for cache flush zeroes */
#define NULLTOP 0xE8000000 /* ... */
#define USTKTOP 0x2000000 /* byte just beyond user stack */
#define USTKSIZE (8*1024*1024) /* size of user stack */
#define TSTKTOP (USTKTOP-USTKSIZE) /* end of new stack in sysexec */
#define TSTKSIZ 100
#define MACHADDR (KZERO+0x00001000)
#define EVECTORS 0xFFFF0000 /* virt base of exception vectors */
#define KSTACK (16*1024) /* Size of kernel stack */
/*
* Offsets into flash
*/
#define Flash_bootldr (FLASHZERO+0x0) /* boot loader */
#define Flash_kernel (FLASHZERO+0x10000) /* boot kernel */
#define Flash_tar (FLASHZERO+0x100000) /* tar file containing fs.sac */
/*
* virtual MMU
*/
#define PTEMAPMEM (1024*1024)
#define PTEPERTAB (PTEMAPMEM/BY2PG)
#define SEGMAPSIZE 1984
#define SSEGMAPSIZE 16
#define PPN(x) ((x)&~(BY2PG-1))
/*
* SA1110 definitions
*/
/*
* memory physical addresses
*/
#define PHYSFLASH0 0x00000000
#define PHYSDRAM0 0xC0000000
#define PHYSNULL0 0xE0000000
/*
* peripheral control module physical addresses
*/
#define USBREGS 0x80000000 /* serial port 0 - USB */
#define UART1REGS 0x80010000 /* serial port 1 - UART */
#define GPCLKREGS 0x80020060 /* serial port 1 - general purpose clock */
#define UART2REGS 0x80030000 /* serial port 2 - low speed IR */
#define HSSPREGS 0x80040060 /* serial port 2 - high speed IR */
#define UART3REGS 0x80050000 /* serial port 3 - RS232 UART */
#define MCPREGS 0x80060000 /* serial port 4 - multimedia comm port */
#define SSPREGS 0x80070060 /* serial port 4 - synchronous serial port */
#define OSTIMERREGS 0x90000000 /* operating system timer registers */
#define POWERREGS 0x90020000 /* power management */
#define GPIOREGS 0x90040000 /* 28 general purpose IO pins */
#define INTRREGS 0x90050000 /* interrupt registers */
#define PPCREGS 0x90060000 /* peripheral pin controller */
#define MEMCONFREGS 0xA0000000 /* memory configuration */
#define LCDREGS 0xB0100000 /* display */
/*
* PCMCIA addresses
*/
#define PHYSPCM0REGS 0x20000000
#define PYHSPCM0ATTR 0x28000000
#define PYHSPCM0MEM 0x2C000000
#define PHYSPCM1REGS 0x30000000
#define PYHSPCM1ATTR 0x38000000
#define PYHSPCM1MEM 0x3C000000
/*
* Program Status Registers
*/
#define PsrMusr 0x00000010 /* mode */
#define PsrMfiq 0x00000011
#define PsrMirq 0x00000012
#define PsrMsvc 0x00000013
#define PsrMabt 0x00000017
#define PsrMund 0x0000001B
#define PsrMask 0x0000001F
#define PsrDfiq 0x00000040 /* disable FIQ interrupts */
#define PsrDirq 0x00000080 /* disable IRQ interrupts */
#define PsrV 0x10000000 /* overflow */
#define PsrC 0x20000000 /* carry/borrow/extend */
#define PsrZ 0x40000000 /* zero */
#define PsrN 0x80000000 /* negative/less than */
/*
* Coprocessors
*/
#define CpMMU 15
#define CpPWR 15
/*
* Internal MMU coprocessor registers
*/
#define CpCPUID 0 /* R: */
#define CpControl 1 /* R: */
#define CpTTB 2 /* RW: translation table base */
#define CpDAC 3 /* RW: domain access control */
#define CpFSR 5 /* RW: fault status */
#define CpFAR 6 /* RW: fault address */
#define CpCacheFlush 7 /* W: cache flushing, wb draining*/
#define CpTLBFlush 8 /* W: TLB flushing */
#define CpRBFlush 9 /* W: Read Buffer ops */
#define CpPID 13 /* RW: PID for virtual mapping */
#define CpBpt 14 /* W: Breakpoint register */
#define CpTest 15 /* W: Test, Clock and Idle Control */
/*
* CpControl
*/
#define CpCmmuena 0x00000001 /* M: MMU enable */
#define CpCalign 0x00000002 /* A: alignment fault enable */
#define CpCdcache 0x00000004 /* C: data cache on */
#define CpCwb 0x00000008 /* W: write buffer turned on */
#define CpCi32 0x00000010 /* P: 32-bit program space */
#define CpCd32 0x00000020 /* D: 32-bit data space */
#define CpCbe 0x00000080 /* B: big-endian operation */
#define CpCsystem 0x00000100 /* S: system permission */
#define CpCrom 0x00000200 /* R: ROM permission */
#define CpCicache 0x00001000 /* I: instruction cache on */
#define CpCvivec 0x00002000 /* X: virtual interrupt vector adjust */
/*
* fault codes
*/
#define FCterm 0x2 /* terminal */
#define FCvec 0x0 /* vector */
#define FCalignf 0x1 /* unaligned full word data access */
#define FCalignh 0x3 /* unaligned half word data access */
#define FCl1abort 0xc /* level 1 external abort on translation */
#define FCl2abort 0xe /* level 2 external abort on translation */
#define FCtransSec 0x5 /* section translation */
#define FCtransPage 0x7 /* page translation */
#define FCdomainSec 0x9 /* section domain */
#define FCdomainPage 0x11 /* page domain */
#define FCpermSec 0x9 /* section permissions */
#define FCpermPage 0x11 /* page permissions */
#define FCabortLFSec 0x4 /* external abort on linefetch for section */
#define FCabortLFPage 0x6 /* external abort on linefetch for page */
#define FCabortNLFSec 0x8 /* external abort on non-linefetch for section */
#define FCabortNLFPage 0xa /* external abort on non-linefetch for page */
/*
* PTE bits used by fault.h. mmu.c translates them to real values.
*/
#define PTEVALID (1<<0)
#define PTERONLY 0 /* this is implied by the absence of PTEWRITE */
#define PTEWRITE (1<<1)
#define PTEUNCACHED (1<<2)
#define PTEKERNEL (1<<3) /* no user access */
/*
* H3650 specific definitions
*/
#define EGPIOREGS 0x49000000 /* Additional GPIO register */
|
