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1da177e4 LT |
1 | /* setup.c: FRV specific setup |
2 | * | |
3 | * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * - Derived from arch/m68k/kernel/setup.c | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | */ | |
12 | ||
63104eec | 13 | #include <linux/utsrelease.h> |
1da177e4 LT |
14 | #include <linux/kernel.h> |
15 | #include <linux/sched.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/fs.h> | |
19 | #include <linux/mm.h> | |
20 | #include <linux/fb.h> | |
21 | #include <linux/console.h> | |
22 | #include <linux/genhd.h> | |
23 | #include <linux/errno.h> | |
24 | #include <linux/string.h> | |
25 | #include <linux/major.h> | |
26 | #include <linux/bootmem.h> | |
27 | #include <linux/highmem.h> | |
28 | #include <linux/seq_file.h> | |
29 | #include <linux/serial.h> | |
30 | #include <linux/serial_core.h> | |
31 | #include <linux/serial_reg.h> | |
b187f180 | 32 | #include <linux/serial_8250.h> |
1da177e4 LT |
33 | |
34 | #include <asm/setup.h> | |
1da177e4 LT |
35 | #include <asm/irq.h> |
36 | #include <asm/sections.h> | |
37 | #include <asm/pgalloc.h> | |
38 | #include <asm/busctl-regs.h> | |
39 | #include <asm/serial-regs.h> | |
40 | #include <asm/timer-regs.h> | |
41 | #include <asm/irc-regs.h> | |
42 | #include <asm/spr-regs.h> | |
43 | #include <asm/mb-regs.h> | |
44 | #include <asm/mb93493-regs.h> | |
45 | #include <asm/gdb-stub.h> | |
1da177e4 LT |
46 | #include <asm/io.h> |
47 | ||
48 | #ifdef CONFIG_BLK_DEV_INITRD | |
49 | #include <linux/blk.h> | |
50 | #include <asm/pgtable.h> | |
51 | #endif | |
52 | ||
53 | #include "local.h" | |
54 | ||
55 | #ifdef CONFIG_MB93090_MB00 | |
56 | static void __init mb93090_display(void); | |
57 | #endif | |
58 | #ifdef CONFIG_MMU | |
59 | static void __init setup_linux_memory(void); | |
60 | #else | |
61 | static void __init setup_uclinux_memory(void); | |
62 | #endif | |
63 | ||
1da177e4 LT |
64 | #ifdef CONFIG_MB93090_MB00 |
65 | static char __initdata mb93090_banner[] = "FJ/RH FR-V Linux"; | |
66 | static char __initdata mb93090_version[] = UTS_RELEASE; | |
67 | ||
68 | int __nongprelbss mb93090_mb00_detected; | |
69 | #endif | |
70 | ||
71 | const char __frv_unknown_system[] = "unknown"; | |
72 | const char __frv_mb93091_cb10[] = "mb93091-cb10"; | |
73 | const char __frv_mb93091_cb11[] = "mb93091-cb11"; | |
74 | const char __frv_mb93091_cb30[] = "mb93091-cb30"; | |
75 | const char __frv_mb93091_cb41[] = "mb93091-cb41"; | |
76 | const char __frv_mb93091_cb60[] = "mb93091-cb60"; | |
77 | const char __frv_mb93091_cb70[] = "mb93091-cb70"; | |
78 | const char __frv_mb93091_cb451[] = "mb93091-cb451"; | |
79 | const char __frv_mb93090_mb00[] = "mb93090-mb00"; | |
80 | ||
81 | const char __frv_mb93493[] = "mb93493"; | |
82 | ||
83 | const char __frv_mb93093[] = "mb93093"; | |
84 | ||
85 | static const char *__nongprelbss cpu_series; | |
86 | static const char *__nongprelbss cpu_core; | |
87 | static const char *__nongprelbss cpu_silicon; | |
88 | static const char *__nongprelbss cpu_mmu; | |
89 | static const char *__nongprelbss cpu_system; | |
90 | static const char *__nongprelbss cpu_board1; | |
91 | static const char *__nongprelbss cpu_board2; | |
92 | ||
93 | static unsigned long __nongprelbss cpu_psr_all; | |
94 | static unsigned long __nongprelbss cpu_hsr0_all; | |
95 | ||
96 | unsigned long __nongprelbss pdm_suspend_mode; | |
97 | ||
98 | unsigned long __nongprelbss rom_length; | |
99 | unsigned long __nongprelbss memory_start; | |
100 | unsigned long __nongprelbss memory_end; | |
101 | ||
102 | unsigned long __nongprelbss dma_coherent_mem_start; | |
103 | unsigned long __nongprelbss dma_coherent_mem_end; | |
104 | ||
105 | unsigned long __initdata __sdram_old_base; | |
106 | unsigned long __initdata num_mappedpages; | |
107 | ||
108 | struct cpuinfo_frv __nongprelbss boot_cpu_data; | |
109 | ||
9c00f761 | 110 | char __initdata command_line[COMMAND_LINE_SIZE]; |
1da177e4 LT |
111 | char __initdata redboot_command_line[COMMAND_LINE_SIZE]; |
112 | ||
113 | #ifdef CONFIG_PM | |
114 | #define __pminit | |
115 | #define __pminitdata | |
116 | #else | |
117 | #define __pminit __init | |
118 | #define __pminitdata __initdata | |
119 | #endif | |
120 | ||
121 | struct clock_cmode { | |
122 | uint8_t xbus, sdram, corebus, core, dsu; | |
123 | }; | |
124 | ||
125 | #define _frac(N,D) ((N)<<4 | (D)) | |
126 | #define _x0_16 _frac(1,6) | |
127 | #define _x0_25 _frac(1,4) | |
128 | #define _x0_33 _frac(1,3) | |
129 | #define _x0_375 _frac(3,8) | |
130 | #define _x0_5 _frac(1,2) | |
131 | #define _x0_66 _frac(2,3) | |
132 | #define _x0_75 _frac(3,4) | |
133 | #define _x1 _frac(1,1) | |
134 | #define _x1_5 _frac(3,2) | |
135 | #define _x2 _frac(2,1) | |
136 | #define _x3 _frac(3,1) | |
137 | #define _x4 _frac(4,1) | |
138 | #define _x4_5 _frac(9,2) | |
139 | #define _x6 _frac(6,1) | |
140 | #define _x8 _frac(8,1) | |
141 | #define _x9 _frac(9,1) | |
142 | ||
143 | int __nongprelbss clock_p0_current; | |
144 | int __nongprelbss clock_cm_current; | |
145 | int __nongprelbss clock_cmode_current; | |
146 | #ifdef CONFIG_PM | |
147 | int __nongprelbss clock_cmodes_permitted; | |
148 | unsigned long __nongprelbss clock_bits_settable; | |
149 | #endif | |
150 | ||
151 | static struct clock_cmode __pminitdata undef_clock_cmode = { _x1, _x1, _x1, _x1, _x1 }; | |
152 | ||
153 | static struct clock_cmode __pminitdata clock_cmodes_fr401_fr403[16] = { | |
154 | [4] = { _x1, _x1, _x2, _x2, _x0_25 }, | |
155 | [5] = { _x1, _x2, _x4, _x4, _x0_5 }, | |
156 | [8] = { _x1, _x1, _x1, _x2, _x0_25 }, | |
157 | [9] = { _x1, _x2, _x2, _x4, _x0_5 }, | |
158 | [11] = { _x1, _x4, _x4, _x8, _x1 }, | |
159 | [12] = { _x1, _x1, _x2, _x4, _x0_5 }, | |
160 | [13] = { _x1, _x2, _x4, _x8, _x1 }, | |
161 | }; | |
162 | ||
163 | static struct clock_cmode __pminitdata clock_cmodes_fr405[16] = { | |
164 | [0] = { _x1, _x1, _x1, _x1, _x0_5 }, | |
165 | [1] = { _x1, _x1, _x1, _x3, _x0_25 }, | |
166 | [2] = { _x1, _x1, _x2, _x6, _x0_5 }, | |
167 | [3] = { _x1, _x2, _x2, _x6, _x0_5 }, | |
168 | [4] = { _x1, _x1, _x2, _x2, _x0_16 }, | |
169 | [8] = { _x1, _x1, _x1, _x2, _x0_16 }, | |
170 | [9] = { _x1, _x2, _x2, _x4, _x0_33 }, | |
171 | [12] = { _x1, _x1, _x2, _x4, _x0_33 }, | |
172 | [14] = { _x1, _x3, _x3, _x9, _x0_75 }, | |
173 | [15] = { _x1, _x1_5, _x1_5, _x4_5, _x0_375 }, | |
174 | ||
175 | #define CLOCK_CMODES_PERMITTED_FR405 0xd31f | |
176 | }; | |
177 | ||
178 | static struct clock_cmode __pminitdata clock_cmodes_fr555[16] = { | |
179 | [0] = { _x1, _x2, _x2, _x4, _x0_33 }, | |
180 | [1] = { _x1, _x3, _x3, _x6, _x0_5 }, | |
181 | [2] = { _x1, _x2, _x4, _x8, _x0_66 }, | |
182 | [3] = { _x1, _x1_5, _x3, _x6, _x0_5 }, | |
183 | [4] = { _x1, _x3, _x3, _x9, _x0_75 }, | |
184 | [5] = { _x1, _x2, _x2, _x6, _x0_5 }, | |
185 | [6] = { _x1, _x1_5, _x1_5, _x4_5, _x0_375 }, | |
186 | }; | |
187 | ||
188 | static const struct clock_cmode __pminitdata *clock_cmodes; | |
189 | static int __pminitdata clock_doubled; | |
190 | ||
5616df20 | 191 | static struct uart_port __pminitdata __frv_uart0 = { |
1da177e4 LT |
192 | .uartclk = 0, |
193 | .membase = (char *) UART0_BASE, | |
194 | .irq = IRQ_CPU_UART0, | |
195 | .regshift = 3, | |
196 | .iotype = UPIO_MEM, | |
197 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | |
198 | }; | |
199 | ||
5616df20 | 200 | static struct uart_port __pminitdata __frv_uart1 = { |
1da177e4 LT |
201 | .uartclk = 0, |
202 | .membase = (char *) UART1_BASE, | |
203 | .irq = IRQ_CPU_UART1, | |
204 | .regshift = 3, | |
205 | .iotype = UPIO_MEM, | |
206 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | |
207 | }; | |
208 | ||
209 | #if 0 | |
210 | static void __init printk_xampr(unsigned long ampr, unsigned long amlr, char i_d, int n) | |
211 | { | |
212 | unsigned long phys, virt, cxn, size; | |
213 | ||
214 | #ifdef CONFIG_MMU | |
215 | virt = amlr & 0xffffc000; | |
216 | cxn = amlr & 0x3fff; | |
217 | #else | |
218 | virt = ampr & 0xffffc000; | |
219 | cxn = 0; | |
220 | #endif | |
221 | phys = ampr & xAMPRx_PPFN; | |
222 | size = 1 << (((ampr & xAMPRx_SS) >> 4) + 17); | |
223 | ||
224 | printk("%cAMPR%d: va %08lx-%08lx [pa %08lx] %c%c%c%c [cxn:%04lx]\n", | |
225 | i_d, n, | |
226 | virt, virt + size - 1, | |
227 | phys, | |
228 | ampr & xAMPRx_S ? 'S' : '-', | |
229 | ampr & xAMPRx_C ? 'C' : '-', | |
230 | ampr & DAMPRx_WP ? 'W' : '-', | |
231 | ampr & xAMPRx_V ? 'V' : '-', | |
232 | cxn | |
233 | ); | |
234 | } | |
235 | #endif | |
236 | ||
237 | /*****************************************************************************/ | |
238 | /* | |
239 | * dump the memory map | |
240 | */ | |
241 | static void __init dump_memory_map(void) | |
242 | { | |
243 | ||
244 | #if 0 | |
245 | /* dump the protection map */ | |
246 | printk_xampr(__get_IAMPR(0), __get_IAMLR(0), 'I', 0); | |
247 | printk_xampr(__get_IAMPR(1), __get_IAMLR(1), 'I', 1); | |
248 | printk_xampr(__get_IAMPR(2), __get_IAMLR(2), 'I', 2); | |
249 | printk_xampr(__get_IAMPR(3), __get_IAMLR(3), 'I', 3); | |
250 | printk_xampr(__get_IAMPR(4), __get_IAMLR(4), 'I', 4); | |
251 | printk_xampr(__get_IAMPR(5), __get_IAMLR(5), 'I', 5); | |
252 | printk_xampr(__get_IAMPR(6), __get_IAMLR(6), 'I', 6); | |
253 | printk_xampr(__get_IAMPR(7), __get_IAMLR(7), 'I', 7); | |
254 | printk_xampr(__get_IAMPR(8), __get_IAMLR(8), 'I', 8); | |
255 | printk_xampr(__get_IAMPR(9), __get_IAMLR(9), 'i', 9); | |
256 | printk_xampr(__get_IAMPR(10), __get_IAMLR(10), 'I', 10); | |
257 | printk_xampr(__get_IAMPR(11), __get_IAMLR(11), 'I', 11); | |
258 | printk_xampr(__get_IAMPR(12), __get_IAMLR(12), 'I', 12); | |
259 | printk_xampr(__get_IAMPR(13), __get_IAMLR(13), 'I', 13); | |
260 | printk_xampr(__get_IAMPR(14), __get_IAMLR(14), 'I', 14); | |
261 | printk_xampr(__get_IAMPR(15), __get_IAMLR(15), 'I', 15); | |
262 | ||
263 | printk_xampr(__get_DAMPR(0), __get_DAMLR(0), 'D', 0); | |
264 | printk_xampr(__get_DAMPR(1), __get_DAMLR(1), 'D', 1); | |
265 | printk_xampr(__get_DAMPR(2), __get_DAMLR(2), 'D', 2); | |
266 | printk_xampr(__get_DAMPR(3), __get_DAMLR(3), 'D', 3); | |
267 | printk_xampr(__get_DAMPR(4), __get_DAMLR(4), 'D', 4); | |
268 | printk_xampr(__get_DAMPR(5), __get_DAMLR(5), 'D', 5); | |
269 | printk_xampr(__get_DAMPR(6), __get_DAMLR(6), 'D', 6); | |
270 | printk_xampr(__get_DAMPR(7), __get_DAMLR(7), 'D', 7); | |
271 | printk_xampr(__get_DAMPR(8), __get_DAMLR(8), 'D', 8); | |
272 | printk_xampr(__get_DAMPR(9), __get_DAMLR(9), 'D', 9); | |
273 | printk_xampr(__get_DAMPR(10), __get_DAMLR(10), 'D', 10); | |
274 | printk_xampr(__get_DAMPR(11), __get_DAMLR(11), 'D', 11); | |
275 | printk_xampr(__get_DAMPR(12), __get_DAMLR(12), 'D', 12); | |
276 | printk_xampr(__get_DAMPR(13), __get_DAMLR(13), 'D', 13); | |
277 | printk_xampr(__get_DAMPR(14), __get_DAMLR(14), 'D', 14); | |
278 | printk_xampr(__get_DAMPR(15), __get_DAMLR(15), 'D', 15); | |
279 | #endif | |
280 | ||
281 | #if 0 | |
282 | /* dump the bus controller registers */ | |
283 | printk("LGCR: %08lx\n", __get_LGCR()); | |
284 | printk("Master: %08lx-%08lx CR=%08lx\n", | |
285 | __get_LEMBR(), __get_LEMBR() + __get_LEMAM(), | |
286 | __get_LMAICR()); | |
287 | ||
288 | int loop; | |
289 | for (loop = 1; loop <= 7; loop++) { | |
290 | unsigned long lcr = __get_LCR(loop), lsbr = __get_LSBR(loop); | |
291 | printk("CS#%d: %08lx-%08lx %c%c%c%c%c%c%c%c%c\n", | |
292 | loop, | |
293 | lsbr, lsbr + __get_LSAM(loop), | |
294 | lcr & 0x80000000 ? 'r' : '-', | |
295 | lcr & 0x40000000 ? 'w' : '-', | |
296 | lcr & 0x08000000 ? 'b' : '-', | |
297 | lcr & 0x04000000 ? 'B' : '-', | |
298 | lcr & 0x02000000 ? 'C' : '-', | |
299 | lcr & 0x01000000 ? 'D' : '-', | |
300 | lcr & 0x00800000 ? 'W' : '-', | |
301 | lcr & 0x00400000 ? 'R' : '-', | |
302 | (lcr & 0x00030000) == 0x00000000 ? '4' : | |
303 | (lcr & 0x00030000) == 0x00010000 ? '2' : | |
304 | (lcr & 0x00030000) == 0x00020000 ? '1' : | |
305 | '-' | |
306 | ); | |
307 | } | |
308 | #endif | |
309 | ||
310 | #if 0 | |
311 | printk("\n"); | |
312 | #endif | |
313 | } /* end dump_memory_map() */ | |
314 | ||
315 | /*****************************************************************************/ | |
316 | /* | |
317 | * attempt to detect a VDK motherboard and DAV daughter board on an MB93091 system | |
318 | */ | |
319 | #ifdef CONFIG_MB93091_VDK | |
320 | static void __init detect_mb93091(void) | |
321 | { | |
322 | #ifdef CONFIG_MB93090_MB00 | |
323 | /* Detect CB70 without motherboard */ | |
324 | if (!(cpu_system == __frv_mb93091_cb70 && ((*(unsigned short *)0xffc00030) & 0x100))) { | |
325 | cpu_board1 = __frv_mb93090_mb00; | |
326 | mb93090_mb00_detected = 1; | |
327 | } | |
328 | #endif | |
329 | ||
330 | #ifdef CONFIG_FUJITSU_MB93493 | |
331 | cpu_board2 = __frv_mb93493; | |
332 | #endif | |
333 | ||
334 | } /* end detect_mb93091() */ | |
335 | #endif | |
336 | ||
337 | /*****************************************************************************/ | |
338 | /* | |
339 | * determine the CPU type and set appropriate parameters | |
340 | * | |
341 | * Family Series CPU Core Silicon Imple Vers | |
342 | * ---------------------------------------------------------- | |
343 | * FR-V --+-> FR400 --+-> FR401 --+-> MB93401 02 00 [1] | |
344 | * | | | | |
345 | * | | +-> MB93401/A 02 01 | |
346 | * | | | | |
347 | * | | +-> MB93403 02 02 | |
348 | * | | | |
349 | * | +-> FR405 ----> MB93405 04 00 | |
350 | * | | |
351 | * +-> FR450 ----> FR451 ----> MB93451 05 00 | |
352 | * | | |
353 | * +-> FR500 ----> FR501 --+-> MB93501 01 01 [2] | |
354 | * | | | |
355 | * | +-> MB93501/A 01 02 | |
356 | * | | |
357 | * +-> FR550 --+-> FR551 ----> MB93555 03 01 | |
358 | * | |
359 | * [1] The MB93401 is an obsolete CPU replaced by the MB93401A | |
360 | * [2] The MB93501 is an obsolete CPU replaced by the MB93501A | |
361 | * | |
362 | * Imple is PSR(Processor Status Register)[31:28]. | |
363 | * Vers is PSR(Processor Status Register)[27:24]. | |
364 | * | |
365 | * A "Silicon" consists of CPU core and some on-chip peripherals. | |
366 | */ | |
367 | static void __init determine_cpu(void) | |
368 | { | |
369 | unsigned long hsr0 = __get_HSR(0); | |
370 | unsigned long psr = __get_PSR(); | |
371 | ||
372 | /* work out what selectable services the CPU supports */ | |
373 | __set_PSR(psr | PSR_EM | PSR_EF | PSR_CM | PSR_NEM); | |
374 | cpu_psr_all = __get_PSR(); | |
375 | __set_PSR(psr); | |
376 | ||
377 | __set_HSR(0, hsr0 | HSR0_GRLE | HSR0_GRHE | HSR0_FRLE | HSR0_FRHE); | |
378 | cpu_hsr0_all = __get_HSR(0); | |
379 | __set_HSR(0, hsr0); | |
380 | ||
381 | /* derive other service specs from the CPU type */ | |
382 | cpu_series = "unknown"; | |
383 | cpu_core = "unknown"; | |
384 | cpu_silicon = "unknown"; | |
385 | cpu_mmu = "Prot"; | |
386 | cpu_system = __frv_unknown_system; | |
387 | clock_cmodes = NULL; | |
388 | clock_doubled = 0; | |
389 | #ifdef CONFIG_PM | |
390 | clock_bits_settable = CLOCK_BIT_CM_H | CLOCK_BIT_CM_M | CLOCK_BIT_P0; | |
391 | #endif | |
392 | ||
393 | switch (PSR_IMPLE(psr)) { | |
394 | case PSR_IMPLE_FR401: | |
395 | cpu_series = "fr400"; | |
396 | cpu_core = "fr401"; | |
397 | pdm_suspend_mode = HSR0_PDM_PLL_RUN; | |
398 | ||
399 | switch (PSR_VERSION(psr)) { | |
400 | case PSR_VERSION_FR401_MB93401: | |
401 | cpu_silicon = "mb93401"; | |
402 | cpu_system = __frv_mb93091_cb10; | |
403 | clock_cmodes = clock_cmodes_fr401_fr403; | |
404 | clock_doubled = 1; | |
405 | break; | |
406 | case PSR_VERSION_FR401_MB93401A: | |
407 | cpu_silicon = "mb93401/A"; | |
408 | cpu_system = __frv_mb93091_cb11; | |
409 | clock_cmodes = clock_cmodes_fr401_fr403; | |
410 | break; | |
411 | case PSR_VERSION_FR401_MB93403: | |
412 | cpu_silicon = "mb93403"; | |
413 | #ifndef CONFIG_MB93093_PDK | |
414 | cpu_system = __frv_mb93091_cb30; | |
415 | #else | |
416 | cpu_system = __frv_mb93093; | |
417 | #endif | |
418 | clock_cmodes = clock_cmodes_fr401_fr403; | |
419 | break; | |
420 | default: | |
421 | break; | |
422 | } | |
423 | break; | |
424 | ||
425 | case PSR_IMPLE_FR405: | |
426 | cpu_series = "fr400"; | |
427 | cpu_core = "fr405"; | |
428 | pdm_suspend_mode = HSR0_PDM_PLL_STOP; | |
429 | ||
430 | switch (PSR_VERSION(psr)) { | |
431 | case PSR_VERSION_FR405_MB93405: | |
432 | cpu_silicon = "mb93405"; | |
433 | cpu_system = __frv_mb93091_cb60; | |
434 | clock_cmodes = clock_cmodes_fr405; | |
435 | #ifdef CONFIG_PM | |
436 | clock_bits_settable |= CLOCK_BIT_CMODE; | |
437 | clock_cmodes_permitted = CLOCK_CMODES_PERMITTED_FR405; | |
438 | #endif | |
439 | ||
440 | /* the FPGA on the CB70 has extra registers | |
441 | * - it has 0x0046 in the VDK_ID FPGA register at 0x1a0, which is | |
442 | * how we tell the difference between it and a CB60 | |
443 | */ | |
444 | if (*(volatile unsigned short *) 0xffc001a0 == 0x0046) | |
445 | cpu_system = __frv_mb93091_cb70; | |
446 | break; | |
447 | default: | |
448 | break; | |
449 | } | |
450 | break; | |
451 | ||
452 | case PSR_IMPLE_FR451: | |
453 | cpu_series = "fr450"; | |
454 | cpu_core = "fr451"; | |
455 | pdm_suspend_mode = HSR0_PDM_PLL_STOP; | |
456 | #ifdef CONFIG_PM | |
457 | clock_bits_settable |= CLOCK_BIT_CMODE; | |
458 | clock_cmodes_permitted = CLOCK_CMODES_PERMITTED_FR405; | |
459 | #endif | |
460 | switch (PSR_VERSION(psr)) { | |
461 | case PSR_VERSION_FR451_MB93451: | |
462 | cpu_silicon = "mb93451"; | |
463 | cpu_mmu = "Prot, SAT, xSAT, DAT"; | |
464 | cpu_system = __frv_mb93091_cb451; | |
465 | clock_cmodes = clock_cmodes_fr405; | |
466 | break; | |
467 | default: | |
468 | break; | |
469 | } | |
470 | break; | |
471 | ||
472 | case PSR_IMPLE_FR501: | |
473 | cpu_series = "fr500"; | |
474 | cpu_core = "fr501"; | |
475 | pdm_suspend_mode = HSR0_PDM_PLL_STOP; | |
476 | ||
477 | switch (PSR_VERSION(psr)) { | |
478 | case PSR_VERSION_FR501_MB93501: cpu_silicon = "mb93501"; break; | |
479 | case PSR_VERSION_FR501_MB93501A: cpu_silicon = "mb93501/A"; break; | |
480 | default: | |
481 | break; | |
482 | } | |
483 | break; | |
484 | ||
485 | case PSR_IMPLE_FR551: | |
486 | cpu_series = "fr550"; | |
487 | cpu_core = "fr551"; | |
488 | pdm_suspend_mode = HSR0_PDM_PLL_RUN; | |
489 | ||
490 | switch (PSR_VERSION(psr)) { | |
491 | case PSR_VERSION_FR551_MB93555: | |
492 | cpu_silicon = "mb93555"; | |
493 | cpu_mmu = "Prot, SAT"; | |
494 | cpu_system = __frv_mb93091_cb41; | |
495 | clock_cmodes = clock_cmodes_fr555; | |
496 | clock_doubled = 1; | |
497 | break; | |
498 | default: | |
499 | break; | |
500 | } | |
501 | break; | |
502 | ||
503 | default: | |
504 | break; | |
505 | } | |
506 | ||
507 | printk("- Series:%s CPU:%s Silicon:%s\n", | |
508 | cpu_series, cpu_core, cpu_silicon); | |
509 | ||
510 | #ifdef CONFIG_MB93091_VDK | |
511 | detect_mb93091(); | |
512 | #endif | |
513 | ||
514 | #if defined(CONFIG_MB93093_PDK) && defined(CONFIG_FUJITSU_MB93493) | |
515 | cpu_board2 = __frv_mb93493; | |
516 | #endif | |
517 | ||
518 | } /* end determine_cpu() */ | |
519 | ||
520 | /*****************************************************************************/ | |
521 | /* | |
522 | * calculate the bus clock speed | |
523 | */ | |
524 | void __pminit determine_clocks(int verbose) | |
525 | { | |
526 | const struct clock_cmode *mode, *tmode; | |
527 | unsigned long clkc, psr, quot; | |
528 | ||
529 | clkc = __get_CLKC(); | |
530 | psr = __get_PSR(); | |
531 | ||
532 | clock_p0_current = !!(clkc & CLKC_P0); | |
533 | clock_cm_current = clkc & CLKC_CM; | |
534 | clock_cmode_current = (clkc & CLKC_CMODE) >> CLKC_CMODE_s; | |
535 | ||
536 | if (verbose) | |
537 | printk("psr=%08lx hsr0=%08lx clkc=%08lx\n", psr, __get_HSR(0), clkc); | |
538 | ||
539 | /* the CB70 has some alternative ways of setting the clock speed through switches accessed | |
540 | * through the FPGA. */ | |
541 | if (cpu_system == __frv_mb93091_cb70) { | |
542 | unsigned short clkswr = *(volatile unsigned short *) 0xffc00104UL & 0x1fffUL; | |
543 | ||
544 | if (clkswr & 0x1000) | |
545 | __clkin_clock_speed_HZ = 60000000UL; | |
546 | else | |
547 | __clkin_clock_speed_HZ = | |
548 | ((clkswr >> 8) & 0xf) * 10000000 + | |
549 | ((clkswr >> 4) & 0xf) * 1000000 + | |
550 | ((clkswr ) & 0xf) * 100000; | |
551 | } | |
552 | /* the FR451 is currently fixed at 24MHz */ | |
553 | else if (cpu_system == __frv_mb93091_cb451) { | |
554 | //__clkin_clock_speed_HZ = 24000000UL; // CB451-FPGA | |
555 | unsigned short clkswr = *(volatile unsigned short *) 0xffc00104UL & 0x1fffUL; | |
556 | ||
557 | if (clkswr & 0x1000) | |
558 | __clkin_clock_speed_HZ = 60000000UL; | |
559 | else | |
560 | __clkin_clock_speed_HZ = | |
561 | ((clkswr >> 8) & 0xf) * 10000000 + | |
562 | ((clkswr >> 4) & 0xf) * 1000000 + | |
563 | ((clkswr ) & 0xf) * 100000; | |
564 | } | |
565 | /* otherwise determine the clockspeed from VDK or other registers */ | |
566 | else { | |
567 | __clkin_clock_speed_HZ = __get_CLKIN(); | |
568 | } | |
569 | ||
570 | /* look up the appropriate clock relationships table entry */ | |
571 | mode = &undef_clock_cmode; | |
572 | if (clock_cmodes) { | |
573 | tmode = &clock_cmodes[(clkc & CLKC_CMODE) >> CLKC_CMODE_s]; | |
574 | if (tmode->xbus) | |
575 | mode = tmode; | |
576 | } | |
577 | ||
578 | #define CLOCK(SRC,RATIO) ((SRC) * (((RATIO) >> 4) & 0x0f) / ((RATIO) & 0x0f)) | |
579 | ||
580 | if (clock_doubled) | |
581 | __clkin_clock_speed_HZ <<= 1; | |
582 | ||
583 | __ext_bus_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->xbus); | |
584 | __sdram_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->sdram); | |
585 | __dsu_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->dsu); | |
586 | ||
587 | switch (clkc & CLKC_CM) { | |
588 | case 0: /* High */ | |
589 | __core_bus_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->corebus); | |
590 | __core_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->core); | |
591 | break; | |
592 | case 1: /* Medium */ | |
593 | __core_bus_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->sdram); | |
594 | __core_clock_speed_HZ = CLOCK(__clkin_clock_speed_HZ, mode->sdram); | |
595 | break; | |
596 | case 2: /* Low; not supported */ | |
597 | case 3: /* UNDEF */ | |
598 | printk("Unsupported CLKC CM %ld\n", clkc & CLKC_CM); | |
599 | panic("Bye"); | |
600 | } | |
601 | ||
602 | __res_bus_clock_speed_HZ = __ext_bus_clock_speed_HZ; | |
603 | if (clkc & CLKC_P0) | |
604 | __res_bus_clock_speed_HZ >>= 1; | |
605 | ||
606 | if (verbose) { | |
607 | printk("CLKIN: %lu.%3.3luMHz\n", | |
608 | __clkin_clock_speed_HZ / 1000000, | |
609 | (__clkin_clock_speed_HZ / 1000) % 1000); | |
610 | ||
611 | printk("CLKS:" | |
612 | " ext=%luMHz res=%luMHz sdram=%luMHz cbus=%luMHz core=%luMHz dsu=%luMHz\n", | |
613 | __ext_bus_clock_speed_HZ / 1000000, | |
614 | __res_bus_clock_speed_HZ / 1000000, | |
615 | __sdram_clock_speed_HZ / 1000000, | |
616 | __core_bus_clock_speed_HZ / 1000000, | |
617 | __core_clock_speed_HZ / 1000000, | |
618 | __dsu_clock_speed_HZ / 1000000 | |
619 | ); | |
620 | } | |
621 | ||
622 | /* calculate the number of __delay() loop iterations per sec (2 insn loop) */ | |
623 | __delay_loops_MHz = __core_clock_speed_HZ / (1000000 * 2); | |
624 | ||
625 | /* set the serial prescaler */ | |
626 | __serial_clock_speed_HZ = __res_bus_clock_speed_HZ; | |
627 | quot = 1; | |
628 | while (__serial_clock_speed_HZ / quot / 16 / 65536 > 3000) | |
629 | quot += 1; | |
630 | ||
631 | /* double the divisor if P0 is clear, so that if/when P0 is set, it's still achievable | |
632 | * - we have to be careful - dividing too much can mean we can't get 115200 baud | |
633 | */ | |
634 | if (__serial_clock_speed_HZ > 32000000 && !(clkc & CLKC_P0)) | |
635 | quot <<= 1; | |
636 | ||
637 | __serial_clock_speed_HZ /= quot; | |
638 | __frv_uart0.uartclk = __serial_clock_speed_HZ; | |
639 | __frv_uart1.uartclk = __serial_clock_speed_HZ; | |
640 | ||
641 | if (verbose) | |
642 | printk(" uart=%luMHz\n", __serial_clock_speed_HZ / 1000000 * quot); | |
643 | ||
644 | while (!(__get_UART0_LSR() & UART_LSR_TEMT)) | |
645 | continue; | |
646 | ||
647 | while (!(__get_UART1_LSR() & UART_LSR_TEMT)) | |
648 | continue; | |
649 | ||
650 | __set_UCPVR(quot); | |
651 | __set_UCPSR(0); | |
652 | } /* end determine_clocks() */ | |
653 | ||
654 | /*****************************************************************************/ | |
655 | /* | |
656 | * reserve some DMA consistent memory | |
657 | */ | |
658 | #ifdef CONFIG_RESERVE_DMA_COHERENT | |
659 | static void __init reserve_dma_coherent(void) | |
660 | { | |
661 | unsigned long ampr; | |
662 | ||
663 | /* find the first non-kernel memory tile and steal it */ | |
664 | #define __steal_AMPR(r) \ | |
665 | if (__get_DAMPR(r) & xAMPRx_V) { \ | |
666 | ampr = __get_DAMPR(r); \ | |
667 | __set_DAMPR(r, ampr | xAMPRx_S | xAMPRx_C); \ | |
668 | __set_IAMPR(r, 0); \ | |
669 | goto found; \ | |
670 | } | |
671 | ||
672 | __steal_AMPR(1); | |
673 | __steal_AMPR(2); | |
674 | __steal_AMPR(3); | |
675 | __steal_AMPR(4); | |
676 | __steal_AMPR(5); | |
677 | __steal_AMPR(6); | |
678 | ||
679 | if (PSR_IMPLE(__get_PSR()) == PSR_IMPLE_FR551) { | |
680 | __steal_AMPR(7); | |
681 | __steal_AMPR(8); | |
682 | __steal_AMPR(9); | |
683 | __steal_AMPR(10); | |
684 | __steal_AMPR(11); | |
685 | __steal_AMPR(12); | |
686 | __steal_AMPR(13); | |
687 | __steal_AMPR(14); | |
688 | } | |
689 | ||
690 | /* unable to grant any DMA consistent memory */ | |
691 | printk("No DMA consistent memory reserved\n"); | |
692 | return; | |
693 | ||
694 | found: | |
695 | dma_coherent_mem_start = ampr & xAMPRx_PPFN; | |
696 | ampr &= xAMPRx_SS; | |
697 | ampr >>= 4; | |
698 | ampr = 1 << (ampr - 3 + 20); | |
699 | dma_coherent_mem_end = dma_coherent_mem_start + ampr; | |
700 | ||
701 | printk("DMA consistent memory reserved %lx-%lx\n", | |
702 | dma_coherent_mem_start, dma_coherent_mem_end); | |
703 | ||
704 | } /* end reserve_dma_coherent() */ | |
705 | #endif | |
706 | ||
707 | /*****************************************************************************/ | |
708 | /* | |
709 | * calibrate the delay loop | |
710 | */ | |
6c81c32f | 711 | void __cpuinit calibrate_delay(void) |
1da177e4 LT |
712 | { |
713 | loops_per_jiffy = __delay_loops_MHz * (1000000 / HZ); | |
714 | ||
715 | printk("Calibrating delay loop... %lu.%02lu BogoMIPS\n", | |
716 | loops_per_jiffy / (500000 / HZ), | |
717 | (loops_per_jiffy / (5000 / HZ)) % 100); | |
718 | ||
719 | } /* end calibrate_delay() */ | |
720 | ||
721 | /*****************************************************************************/ | |
722 | /* | |
723 | * look through the command line for some things we need to know immediately | |
724 | */ | |
725 | static void __init parse_cmdline_early(char *cmdline) | |
726 | { | |
727 | if (!cmdline) | |
728 | return; | |
729 | ||
730 | while (*cmdline) { | |
731 | if (*cmdline == ' ') | |
732 | cmdline++; | |
733 | ||
734 | /* "mem=XXX[kKmM]" sets SDRAM size to <mem>, overriding the value we worked | |
735 | * out from the SDRAM controller mask register | |
736 | */ | |
737 | if (!memcmp(cmdline, "mem=", 4)) { | |
738 | unsigned long long mem_size; | |
739 | ||
740 | mem_size = memparse(cmdline + 4, &cmdline); | |
741 | memory_end = memory_start + mem_size; | |
742 | } | |
743 | ||
744 | while (*cmdline && *cmdline != ' ') | |
745 | cmdline++; | |
746 | } | |
747 | ||
748 | } /* end parse_cmdline_early() */ | |
749 | ||
750 | /*****************************************************************************/ | |
751 | /* | |
752 | * | |
753 | */ | |
754 | void __init setup_arch(char **cmdline_p) | |
755 | { | |
756 | #ifdef CONFIG_MMU | |
757 | printk("Linux FR-V port done by Red Hat Inc <dhowells@redhat.com>\n"); | |
758 | #else | |
759 | printk("uClinux FR-V port done by Red Hat Inc <dhowells@redhat.com>\n"); | |
760 | #endif | |
761 | ||
9c00f761 | 762 | memcpy(boot_command_line, redboot_command_line, COMMAND_LINE_SIZE); |
1da177e4 LT |
763 | |
764 | determine_cpu(); | |
765 | determine_clocks(1); | |
766 | ||
767 | /* For printk-directly-beats-on-serial-hardware hack */ | |
768 | console_set_baud(115200); | |
769 | #ifdef CONFIG_GDBSTUB | |
770 | gdbstub_set_baud(115200); | |
771 | #endif | |
772 | ||
773 | #ifdef CONFIG_RESERVE_DMA_COHERENT | |
774 | reserve_dma_coherent(); | |
775 | #endif | |
776 | dump_memory_map(); | |
777 | ||
778 | #ifdef CONFIG_MB93090_MB00 | |
779 | if (mb93090_mb00_detected) | |
780 | mb93090_display(); | |
781 | #endif | |
782 | ||
783 | /* register those serial ports that are available */ | |
f8aec757 | 784 | #ifdef CONFIG_FRV_ONCPU_SERIAL |
1da177e4 LT |
785 | #ifndef CONFIG_GDBSTUB_UART0 |
786 | __reg(UART0_BASE + UART_IER * 8) = 0; | |
787 | early_serial_setup(&__frv_uart0); | |
1da177e4 LT |
788 | #endif |
789 | #ifndef CONFIG_GDBSTUB_UART1 | |
790 | __reg(UART1_BASE + UART_IER * 8) = 0; | |
791 | early_serial_setup(&__frv_uart1); | |
1da177e4 | 792 | #endif |
f8aec757 | 793 | #endif |
1da177e4 | 794 | |
1da177e4 | 795 | /* deal with the command line - RedBoot may have passed one to the kernel */ |
9c00f761 | 796 | memcpy(command_line, boot_command_line, sizeof(command_line)); |
1da177e4 LT |
797 | *cmdline_p = &command_line[0]; |
798 | parse_cmdline_early(command_line); | |
799 | ||
800 | /* set up the memory description | |
801 | * - by now the stack is part of the init task */ | |
802 | printk("Memory %08lx-%08lx\n", memory_start, memory_end); | |
803 | ||
125e1874 | 804 | BUG_ON(memory_start == memory_end); |
1da177e4 LT |
805 | |
806 | init_mm.start_code = (unsigned long) &_stext; | |
807 | init_mm.end_code = (unsigned long) &_etext; | |
808 | init_mm.end_data = (unsigned long) &_edata; | |
809 | #if 0 /* DAVIDM - don't set brk just incase someone decides to use it */ | |
810 | init_mm.brk = (unsigned long) &_end; | |
811 | #else | |
812 | init_mm.brk = (unsigned long) 0; | |
813 | #endif | |
814 | ||
815 | #ifdef DEBUG | |
816 | printk("KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x BSS=0x%06x-0x%06x\n", | |
817 | (int) &_stext, (int) &_etext, | |
818 | (int) &_sdata, (int) &_edata, | |
819 | (int) &_sbss, (int) &_ebss); | |
820 | #endif | |
821 | ||
822 | #ifdef CONFIG_VT | |
823 | #if defined(CONFIG_VGA_CONSOLE) | |
824 | conswitchp = &vga_con; | |
825 | #elif defined(CONFIG_DUMMY_CONSOLE) | |
826 | conswitchp = &dummy_con; | |
827 | #endif | |
828 | #endif | |
829 | ||
1da177e4 LT |
830 | #ifdef CONFIG_MMU |
831 | setup_linux_memory(); | |
832 | #else | |
833 | setup_uclinux_memory(); | |
834 | #endif | |
835 | ||
836 | /* get kmalloc into gear */ | |
837 | paging_init(); | |
838 | ||
839 | /* init DMA */ | |
840 | frv_dma_init(); | |
841 | #ifdef DEBUG | |
842 | printk("Done setup_arch\n"); | |
843 | #endif | |
844 | ||
845 | /* start the decrement timer running */ | |
846 | // asm volatile("movgs %0,timerd" :: "r"(10000000)); | |
847 | // __set_HSR(0, __get_HSR(0) | HSR0_ETMD); | |
848 | ||
849 | } /* end setup_arch() */ | |
850 | ||
851 | #if 0 | |
852 | /*****************************************************************************/ | |
853 | /* | |
854 | * | |
855 | */ | |
856 | static int __devinit setup_arch_serial(void) | |
857 | { | |
858 | /* register those serial ports that are available */ | |
859 | #ifndef CONFIG_GDBSTUB_UART0 | |
860 | early_serial_setup(&__frv_uart0); | |
861 | #endif | |
862 | #ifndef CONFIG_GDBSTUB_UART1 | |
863 | early_serial_setup(&__frv_uart1); | |
864 | #endif | |
865 | ||
866 | return 0; | |
867 | } /* end setup_arch_serial() */ | |
868 | ||
869 | late_initcall(setup_arch_serial); | |
870 | #endif | |
871 | ||
872 | /*****************************************************************************/ | |
873 | /* | |
874 | * set up the memory map for normal MMU linux | |
875 | */ | |
876 | #ifdef CONFIG_MMU | |
877 | static void __init setup_linux_memory(void) | |
878 | { | |
879 | unsigned long bootmap_size, low_top_pfn, kstart, kend, high_mem; | |
880 | ||
881 | kstart = (unsigned long) &__kernel_image_start - PAGE_OFFSET; | |
882 | kend = (unsigned long) &__kernel_image_end - PAGE_OFFSET; | |
883 | ||
884 | kstart = kstart & PAGE_MASK; | |
885 | kend = (kend + PAGE_SIZE - 1) & PAGE_MASK; | |
886 | ||
887 | /* give all the memory to the bootmap allocator, tell it to put the | |
888 | * boot mem_map immediately following the kernel image | |
889 | */ | |
890 | bootmap_size = init_bootmem_node(NODE_DATA(0), | |
891 | kend >> PAGE_SHIFT, /* map addr */ | |
892 | memory_start >> PAGE_SHIFT, /* start of RAM */ | |
893 | memory_end >> PAGE_SHIFT /* end of RAM */ | |
894 | ); | |
895 | ||
896 | /* pass the memory that the kernel can immediately use over to the bootmem allocator */ | |
897 | max_mapnr = num_physpages = (memory_end - memory_start) >> PAGE_SHIFT; | |
898 | low_top_pfn = (KERNEL_LOWMEM_END - KERNEL_LOWMEM_START) >> PAGE_SHIFT; | |
899 | high_mem = 0; | |
900 | ||
901 | if (num_physpages > low_top_pfn) { | |
902 | #ifdef CONFIG_HIGHMEM | |
903 | high_mem = num_physpages - low_top_pfn; | |
904 | #else | |
905 | max_mapnr = num_physpages = low_top_pfn; | |
906 | #endif | |
907 | } | |
908 | else { | |
909 | low_top_pfn = num_physpages; | |
910 | } | |
911 | ||
912 | min_low_pfn = memory_start >> PAGE_SHIFT; | |
913 | max_low_pfn = low_top_pfn; | |
914 | max_pfn = memory_end >> PAGE_SHIFT; | |
915 | ||
916 | num_mappedpages = low_top_pfn; | |
917 | ||
918 | printk(KERN_NOTICE "%ldMB LOWMEM available.\n", low_top_pfn >> (20 - PAGE_SHIFT)); | |
919 | ||
920 | free_bootmem(memory_start, low_top_pfn << PAGE_SHIFT); | |
921 | ||
922 | #ifdef CONFIG_HIGHMEM | |
923 | if (high_mem) | |
924 | printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", high_mem >> (20 - PAGE_SHIFT)); | |
925 | #endif | |
926 | ||
927 | /* take back the memory occupied by the kernel image and the bootmem alloc map */ | |
72a7fe39 BW |
928 | reserve_bootmem(kstart, kend - kstart + bootmap_size, |
929 | BOOTMEM_DEFAULT); | |
1da177e4 LT |
930 | |
931 | /* reserve the memory occupied by the initial ramdisk */ | |
932 | #ifdef CONFIG_BLK_DEV_INITRD | |
933 | if (LOADER_TYPE && INITRD_START) { | |
934 | if (INITRD_START + INITRD_SIZE <= (low_top_pfn << PAGE_SHIFT)) { | |
72a7fe39 BW |
935 | reserve_bootmem(INITRD_START, INITRD_SIZE, |
936 | BOOTMEM_DEFAULT); | |
19e5d9c0 | 937 | initrd_start = INITRD_START + PAGE_OFFSET; |
1da177e4 LT |
938 | initrd_end = initrd_start + INITRD_SIZE; |
939 | } | |
940 | else { | |
941 | printk(KERN_ERR | |
942 | "initrd extends beyond end of memory (0x%08lx > 0x%08lx)\n" | |
943 | "disabling initrd\n", | |
944 | INITRD_START + INITRD_SIZE, | |
945 | low_top_pfn << PAGE_SHIFT); | |
946 | initrd_start = 0; | |
947 | } | |
948 | } | |
949 | #endif | |
950 | ||
951 | } /* end setup_linux_memory() */ | |
952 | #endif | |
953 | ||
954 | /*****************************************************************************/ | |
955 | /* | |
956 | * set up the memory map for uClinux | |
957 | */ | |
958 | #ifndef CONFIG_MMU | |
959 | static void __init setup_uclinux_memory(void) | |
960 | { | |
961 | #ifdef CONFIG_PROTECT_KERNEL | |
962 | unsigned long dampr; | |
963 | #endif | |
964 | unsigned long kend; | |
965 | int bootmap_size; | |
966 | ||
967 | kend = (unsigned long) &__kernel_image_end; | |
968 | kend = (kend + PAGE_SIZE - 1) & PAGE_MASK; | |
969 | ||
970 | /* give all the memory to the bootmap allocator, tell it to put the | |
971 | * boot mem_map immediately following the kernel image | |
972 | */ | |
973 | bootmap_size = init_bootmem_node(NODE_DATA(0), | |
974 | kend >> PAGE_SHIFT, /* map addr */ | |
975 | memory_start >> PAGE_SHIFT, /* start of RAM */ | |
976 | memory_end >> PAGE_SHIFT /* end of RAM */ | |
977 | ); | |
978 | ||
979 | /* free all the usable memory */ | |
980 | free_bootmem(memory_start, memory_end - memory_start); | |
981 | ||
982 | high_memory = (void *) (memory_end & PAGE_MASK); | |
983 | max_mapnr = num_physpages = ((unsigned long) high_memory - PAGE_OFFSET) >> PAGE_SHIFT; | |
984 | ||
985 | min_low_pfn = memory_start >> PAGE_SHIFT; | |
986 | max_low_pfn = memory_end >> PAGE_SHIFT; | |
987 | max_pfn = max_low_pfn; | |
988 | ||
989 | /* now take back the bits the core kernel is occupying */ | |
990 | #ifndef CONFIG_PROTECT_KERNEL | |
72a7fe39 | 991 | reserve_bootmem(kend, bootmap_size, BOOTMEM_DEFAULT); |
1da177e4 | 992 | reserve_bootmem((unsigned long) &__kernel_image_start, |
72a7fe39 BW |
993 | kend - (unsigned long) &__kernel_image_start, |
994 | BOOTMEM_DEFAULT); | |
1da177e4 LT |
995 | |
996 | #else | |
997 | dampr = __get_DAMPR(0); | |
998 | dampr &= xAMPRx_SS; | |
999 | dampr = (dampr >> 4) + 17; | |
1000 | dampr = 1 << dampr; | |
1001 | ||
72a7fe39 | 1002 | reserve_bootmem(__get_DAMPR(0) & xAMPRx_PPFN, dampr, BOOTMEM_DEFAULT); |
1da177e4 LT |
1003 | #endif |
1004 | ||
1005 | /* reserve some memory to do uncached DMA through if requested */ | |
1006 | #ifdef CONFIG_RESERVE_DMA_COHERENT | |
1007 | if (dma_coherent_mem_start) | |
1008 | reserve_bootmem(dma_coherent_mem_start, | |
72a7fe39 BW |
1009 | dma_coherent_mem_end - dma_coherent_mem_start, |
1010 | BOOTMEM_DEFAULT); | |
1da177e4 LT |
1011 | #endif |
1012 | ||
1013 | } /* end setup_uclinux_memory() */ | |
1014 | #endif | |
1015 | ||
1016 | /*****************************************************************************/ | |
1017 | /* | |
1018 | * get CPU information for use by procfs | |
1019 | */ | |
1020 | static int show_cpuinfo(struct seq_file *m, void *v) | |
1021 | { | |
1022 | const char *gr, *fr, *fm, *fp, *cm, *nem, *ble; | |
1023 | #ifdef CONFIG_PM | |
1024 | const char *sep; | |
1025 | #endif | |
1026 | ||
1027 | gr = cpu_hsr0_all & HSR0_GRHE ? "gr0-63" : "gr0-31"; | |
1028 | fr = cpu_hsr0_all & HSR0_FRHE ? "fr0-63" : "fr0-31"; | |
1029 | fm = cpu_psr_all & PSR_EM ? ", Media" : ""; | |
1030 | fp = cpu_psr_all & PSR_EF ? ", FPU" : ""; | |
1031 | cm = cpu_psr_all & PSR_CM ? ", CCCR" : ""; | |
1032 | nem = cpu_psr_all & PSR_NEM ? ", NE" : ""; | |
1033 | ble = cpu_psr_all & PSR_BE ? "BE" : "LE"; | |
1034 | ||
1035 | seq_printf(m, | |
1036 | "CPU-Series:\t%s\n" | |
1037 | "CPU-Core:\t%s, %s, %s%s%s\n" | |
1038 | "CPU:\t\t%s\n" | |
1039 | "MMU:\t\t%s\n" | |
1040 | "FP-Media:\t%s%s%s\n" | |
1041 | "System:\t\t%s", | |
1042 | cpu_series, | |
1043 | cpu_core, gr, ble, cm, nem, | |
1044 | cpu_silicon, | |
1045 | cpu_mmu, | |
1046 | fr, fm, fp, | |
1047 | cpu_system); | |
1048 | ||
1049 | if (cpu_board1) | |
1050 | seq_printf(m, ", %s", cpu_board1); | |
1051 | ||
1052 | if (cpu_board2) | |
1053 | seq_printf(m, ", %s", cpu_board2); | |
1054 | ||
1055 | seq_printf(m, "\n"); | |
1056 | ||
1057 | #ifdef CONFIG_PM | |
1058 | seq_printf(m, "PM-Controls:"); | |
1059 | sep = "\t"; | |
1060 | ||
1061 | if (clock_bits_settable & CLOCK_BIT_CMODE) { | |
1062 | seq_printf(m, "%scmode=0x%04hx", sep, clock_cmodes_permitted); | |
1063 | sep = ", "; | |
1064 | } | |
1065 | ||
1066 | if (clock_bits_settable & CLOCK_BIT_CM) { | |
1067 | seq_printf(m, "%scm=0x%lx", sep, clock_bits_settable & CLOCK_BIT_CM); | |
1068 | sep = ", "; | |
1069 | } | |
1070 | ||
1071 | if (clock_bits_settable & CLOCK_BIT_P0) { | |
1072 | seq_printf(m, "%sp0=0x3", sep); | |
1073 | sep = ", "; | |
1074 | } | |
1075 | ||
1076 | seq_printf(m, "%ssuspend=0x22\n", sep); | |
1077 | #endif | |
1078 | ||
1079 | seq_printf(m, | |
1080 | "PM-Status:\tcmode=%d, cm=%d, p0=%d\n", | |
1081 | clock_cmode_current, clock_cm_current, clock_p0_current); | |
1082 | ||
1083 | #define print_clk(TAG, VAR) \ | |
1084 | seq_printf(m, "Clock-" TAG ":\t%lu.%2.2lu MHz\n", VAR / 1000000, (VAR / 10000) % 100) | |
1085 | ||
1086 | print_clk("In", __clkin_clock_speed_HZ); | |
1087 | print_clk("Core", __core_clock_speed_HZ); | |
1088 | print_clk("SDRAM", __sdram_clock_speed_HZ); | |
1089 | print_clk("CBus", __core_bus_clock_speed_HZ); | |
1090 | print_clk("Res", __res_bus_clock_speed_HZ); | |
1091 | print_clk("Ext", __ext_bus_clock_speed_HZ); | |
1092 | print_clk("DSU", __dsu_clock_speed_HZ); | |
1093 | ||
1094 | seq_printf(m, | |
1095 | "BogoMips:\t%lu.%02lu\n", | |
1096 | (loops_per_jiffy * HZ) / 500000, ((loops_per_jiffy * HZ) / 5000) % 100); | |
1097 | ||
1098 | return 0; | |
1099 | } /* end show_cpuinfo() */ | |
1100 | ||
1101 | static void *c_start(struct seq_file *m, loff_t *pos) | |
1102 | { | |
1103 | return *pos < NR_CPUS ? (void *) 0x12345678 : NULL; | |
1104 | } | |
1105 | ||
1106 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | |
1107 | { | |
1108 | ++*pos; | |
1109 | return c_start(m, pos); | |
1110 | } | |
1111 | ||
1112 | static void c_stop(struct seq_file *m, void *v) | |
1113 | { | |
1114 | } | |
1115 | ||
1116 | struct seq_operations cpuinfo_op = { | |
1117 | .start = c_start, | |
1118 | .next = c_next, | |
1119 | .stop = c_stop, | |
1120 | .show = show_cpuinfo, | |
1121 | }; | |
1122 | ||
1123 | void arch_gettod(int *year, int *mon, int *day, int *hour, | |
1124 | int *min, int *sec) | |
1125 | { | |
1126 | *year = *mon = *day = *hour = *min = *sec = 0; | |
1127 | } | |
1128 | ||
1129 | /*****************************************************************************/ | |
1130 | /* | |
1131 | * | |
1132 | */ | |
1133 | #ifdef CONFIG_MB93090_MB00 | |
1134 | static void __init mb93090_sendlcdcmd(uint32_t cmd) | |
1135 | { | |
1136 | unsigned long base = __addr_LCD(); | |
1137 | int loop; | |
1138 | ||
1139 | /* request reading of the busy flag */ | |
1140 | __set_LCD(base, LCD_CMD_READ_BUSY); | |
1141 | __set_LCD(base, LCD_CMD_READ_BUSY & ~LCD_E); | |
1142 | ||
1143 | /* wait for the busy flag to become clear */ | |
1144 | for (loop = 10000; loop > 0; loop--) | |
1145 | if (!(__get_LCD(base) & 0x80)) | |
1146 | break; | |
1147 | ||
1148 | /* send the command */ | |
1149 | __set_LCD(base, cmd); | |
1150 | __set_LCD(base, cmd & ~LCD_E); | |
1151 | ||
1152 | } /* end mb93090_sendlcdcmd() */ | |
1153 | ||
1154 | /*****************************************************************************/ | |
1155 | /* | |
1156 | * write to the MB93090 LEDs and LCD | |
1157 | */ | |
1158 | static void __init mb93090_display(void) | |
1159 | { | |
1160 | const char *p; | |
1161 | ||
1162 | __set_LEDS(0); | |
1163 | ||
1164 | /* set up the LCD */ | |
1165 | mb93090_sendlcdcmd(LCD_CMD_CLEAR); | |
1166 | mb93090_sendlcdcmd(LCD_CMD_FUNCSET(1,1,0)); | |
1167 | mb93090_sendlcdcmd(LCD_CMD_ON(0,0)); | |
1168 | mb93090_sendlcdcmd(LCD_CMD_HOME); | |
1169 | ||
1170 | mb93090_sendlcdcmd(LCD_CMD_SET_DD_ADDR(0)); | |
1171 | for (p = mb93090_banner; *p; p++) | |
1172 | mb93090_sendlcdcmd(LCD_DATA_WRITE(*p)); | |
1173 | ||
1174 | mb93090_sendlcdcmd(LCD_CMD_SET_DD_ADDR(64)); | |
1175 | for (p = mb93090_version; *p; p++) | |
1176 | mb93090_sendlcdcmd(LCD_DATA_WRITE(*p)); | |
1177 | ||
1178 | } /* end mb93090_display() */ | |
1179 | ||
1180 | #endif // CONFIG_MB93090_MB00 |