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-rw-r--r--arch/mips/ddb5xxx/ddb5477/setup.c399
1 files changed, 0 insertions, 399 deletions
diff --git a/arch/mips/ddb5xxx/ddb5477/setup.c b/arch/mips/ddb5xxx/ddb5477/setup.c
deleted file mode 100644
index f0cc0e8a8afa..000000000000
--- a/arch/mips/ddb5xxx/ddb5477/setup.c
+++ /dev/null
@@ -1,399 +0,0 @@
1/*
2 *
3 * Copyright 2001 MontaVista Software Inc.
4 * Author: jsun@mvista.com or jsun@junsun.net
5 *
6 * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
7 *
8 * arch/mips/ddb5xxx/ddb5477/setup.c
9 * Setup file for DDB5477.
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 */
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/types.h>
19#include <linux/sched.h>
20#include <linux/pci.h>
21#include <linux/ide.h>
22#include <linux/irq.h>
23#include <linux/fs.h>
24#include <linux/ioport.h>
25#include <linux/param.h> /* for HZ */
26#include <linux/major.h>
27#include <linux/kdev_t.h>
28#include <linux/root_dev.h>
29#include <linux/pm.h>
30
31#include <asm/cpu.h>
32#include <asm/bootinfo.h>
33#include <asm/addrspace.h>
34#include <asm/time.h>
35#include <asm/bcache.h>
36#include <asm/irq.h>
37#include <asm/reboot.h>
38#include <asm/gdb-stub.h>
39#include <asm/traps.h>
40#include <asm/debug.h>
41
42#include <asm/ddb5xxx/ddb5xxx.h>
43
44#include "lcd44780.h"
45
46
47#define USE_CPU_COUNTER_TIMER /* whether we use cpu counter */
48
49#define SP_TIMER_BASE DDB_SPT1CTRL_L
50#define SP_TIMER_IRQ VRC5477_IRQ_SPT1
51
52static int bus_frequency = CONFIG_DDB5477_BUS_FREQUENCY*1000;
53
54static void ddb_machine_restart(char *command)
55{
56 static void (*back_to_prom) (void) = (void (*)(void)) 0xbfc00000;
57
58 u32 t;
59
60 /* PCI cold reset */
61 ddb_pci_reset_bus();
62
63 /* CPU cold reset */
64 t = ddb_in32(DDB_CPUSTAT);
65 db_assert((t&1));
66 ddb_out32(DDB_CPUSTAT, t);
67
68 /* Call the PROM */
69 back_to_prom();
70}
71
72static void ddb_machine_halt(void)
73{
74 printk("DDB Vrc-5477 halted.\n");
75 while (1);
76}
77
78static void ddb_machine_power_off(void)
79{
80 printk("DDB Vrc-5477 halted. Please turn off the power.\n");
81 while (1);
82}
83
84extern void rtc_ds1386_init(unsigned long base);
85
86static unsigned int __init detect_bus_frequency(unsigned long rtc_base)
87{
88 unsigned int freq;
89 unsigned char c;
90 unsigned int t1, t2;
91 unsigned i;
92
93 ddb_out32(SP_TIMER_BASE, 0xffffffff);
94 ddb_out32(SP_TIMER_BASE+4, 0x1);
95 ddb_out32(SP_TIMER_BASE+8, 0xffffffff);
96
97 /* check if rtc is running */
98 c= *(volatile unsigned char*)rtc_base;
99 for(i=0; (c == *(volatile unsigned char*)rtc_base) && (i<100000000); i++);
100 if (c == *(volatile unsigned char*)rtc_base) {
101 printk("Failed to detect bus frequency. Use default 83.3MHz.\n");
102 return 83333000;
103 }
104
105 c= *(volatile unsigned char*)rtc_base;
106 while (c == *(volatile unsigned char*)rtc_base);
107 /* we are now at the turn of 1/100th second, if no error. */
108 t1 = ddb_in32(SP_TIMER_BASE+8);
109
110 for (i=0; i< 10; i++) {
111 c= *(volatile unsigned char*)rtc_base;
112 while (c == *(volatile unsigned char*)rtc_base);
113 /* we are now at the turn of another 1/100th second */
114 t2 = ddb_in32(SP_TIMER_BASE+8);
115 }
116
117 ddb_out32(SP_TIMER_BASE+4, 0x0); /* disable it again */
118
119 freq = (t1 - t2)*10;
120 printk("DDB bus frequency detection : %u \n", freq);
121 return freq;
122}
123
124static void __init ddb_time_init(void)
125{
126 unsigned long rtc_base;
127 unsigned int i;
128
129 /* we have ds1396 RTC chip */
130 if (mips_machtype == MACH_NEC_ROCKHOPPER
131 || mips_machtype == MACH_NEC_ROCKHOPPERII) {
132 rtc_base = KSEG1ADDR(DDB_LCS2_BASE);
133 } else {
134 rtc_base = KSEG1ADDR(DDB_LCS1_BASE);
135 }
136 rtc_ds1386_init(rtc_base);
137
138 /* do we need to do run-time detection of bus speed? */
139 if (bus_frequency == 0) {
140 bus_frequency = detect_bus_frequency(rtc_base);
141 }
142
143 /* mips_hpt_frequency is 1/2 of the cpu core freq */
144 i = (read_c0_config() >> 28 ) & 7;
145 if ((current_cpu_data.cputype == CPU_R5432) && (i == 3))
146 i = 4;
147 mips_hpt_frequency = bus_frequency*(i+4)/4;
148}
149
150void __init plat_timer_setup(struct irqaction *irq)
151{
152#if defined(USE_CPU_COUNTER_TIMER)
153
154 /* we are using the cpu counter for timer interrupts */
155 setup_irq(CPU_IRQ_BASE + 7, irq);
156
157#else
158
159 /* if we use Special purpose timer 1 */
160 ddb_out32(SP_TIMER_BASE, bus_frequency/HZ);
161 ddb_out32(SP_TIMER_BASE+4, 0x1);
162 setup_irq(SP_TIMER_IRQ, irq);
163
164#endif
165}
166
167static void ddb5477_board_init(void);
168
169extern struct pci_controller ddb5477_ext_controller;
170extern struct pci_controller ddb5477_io_controller;
171
172void __init plat_mem_setup(void)
173{
174 /* initialize board - we don't trust the loader */
175 ddb5477_board_init();
176
177 set_io_port_base(KSEG1ADDR(DDB_PCI_IO_BASE));
178
179 board_time_init = ddb_time_init;
180
181 _machine_restart = ddb_machine_restart;
182 _machine_halt = ddb_machine_halt;
183 pm_power_off = ddb_machine_power_off;
184
185 /* setup resource limits */
186 ioport_resource.end = DDB_PCI0_IO_SIZE + DDB_PCI1_IO_SIZE - 1;
187 iomem_resource.end = 0xffffffff;
188
189 /* Reboot on panic */
190 panic_timeout = 180;
191
192 register_pci_controller (&ddb5477_ext_controller);
193 register_pci_controller (&ddb5477_io_controller);
194}
195
196static void __init ddb5477_board_init(void)
197{
198 /* ----------- setup PDARs ------------ */
199
200 /* SDRAM should have been set */
201 db_assert(ddb_in32(DDB_SDRAM0) ==
202 ddb_calc_pdar(DDB_SDRAM_BASE, board_ram_size, 32, 0, 1));
203
204 /* SDRAM1 should be turned off. What is this for anyway ? */
205 db_assert( (ddb_in32(DDB_SDRAM1) & 0xf) == 0);
206
207 /* Setup local bus. */
208
209 /* Flash U12 PDAR and timing. */
210 ddb_set_pdar(DDB_LCS0, DDB_LCS0_BASE, DDB_LCS0_SIZE, 16, 0, 0);
211 ddb_out32(DDB_LCST0, 0x00090842);
212
213 /* We need to setup LCS1 and LCS2 differently based on the
214 board_version */
215 if (mips_machtype == MACH_NEC_ROCKHOPPER) {
216 /* Flash U13 PDAR and timing. */
217 ddb_set_pdar(DDB_LCS1, DDB_LCS1_BASE, DDB_LCS1_SIZE, 16, 0, 0);
218 ddb_out32(DDB_LCST1, 0x00090842);
219
220 /* EPLD (NVRAM, switch, LCD, and mezzanie). */
221 ddb_set_pdar(DDB_LCS2, DDB_LCS2_BASE, DDB_LCS2_SIZE, 8, 0, 0);
222 } else {
223 /* misc */
224 ddb_set_pdar(DDB_LCS1, DDB_LCS1_BASE, DDB_LCS1_SIZE, 8, 0, 0);
225 /* mezzanie (?) */
226 ddb_set_pdar(DDB_LCS2, DDB_LCS2_BASE, DDB_LCS2_SIZE, 16, 0, 0);
227 }
228
229 /* verify VRC5477 base addr */
230 db_assert(ddb_in32(DDB_VRC5477) ==
231 ddb_calc_pdar(DDB_VRC5477_BASE, DDB_VRC5477_SIZE, 32, 0, 1));
232
233 /* verify BOOT ROM addr */
234 db_assert(ddb_in32(DDB_BOOTCS) ==
235 ddb_calc_pdar(DDB_BOOTCS_BASE, DDB_BOOTCS_SIZE, 8, 0, 0));
236
237 /* setup PCI windows - window0 for MEM/config, window1 for IO */
238 ddb_set_pdar(DDB_PCIW0, DDB_PCI0_MEM_BASE, DDB_PCI0_MEM_SIZE, 32, 0, 1);
239 ddb_set_pdar(DDB_PCIW1, DDB_PCI0_IO_BASE, DDB_PCI0_IO_SIZE, 32, 0, 1);
240 ddb_set_pdar(DDB_IOPCIW0, DDB_PCI1_MEM_BASE, DDB_PCI1_MEM_SIZE, 32, 0, 1);
241 ddb_set_pdar(DDB_IOPCIW1, DDB_PCI1_IO_BASE, DDB_PCI1_IO_SIZE, 32, 0, 1);
242
243 /* ------------ reset PCI bus and BARs ----------------- */
244 ddb_pci_reset_bus();
245
246 ddb_out32(DDB_BARM010, 0x00000008);
247 ddb_out32(DDB_BARM011, 0x00000008);
248
249 ddb_out32(DDB_BARC0, 0xffffffff);
250 ddb_out32(DDB_BARM230, 0xffffffff);
251 ddb_out32(DDB_BAR00, 0xffffffff);
252 ddb_out32(DDB_BAR10, 0xffffffff);
253 ddb_out32(DDB_BAR20, 0xffffffff);
254 ddb_out32(DDB_BAR30, 0xffffffff);
255 ddb_out32(DDB_BAR40, 0xffffffff);
256 ddb_out32(DDB_BAR50, 0xffffffff);
257 ddb_out32(DDB_BARB0, 0xffffffff);
258
259 ddb_out32(DDB_BARC1, 0xffffffff);
260 ddb_out32(DDB_BARM231, 0xffffffff);
261 ddb_out32(DDB_BAR01, 0xffffffff);
262 ddb_out32(DDB_BAR11, 0xffffffff);
263 ddb_out32(DDB_BAR21, 0xffffffff);
264 ddb_out32(DDB_BAR31, 0xffffffff);
265 ddb_out32(DDB_BAR41, 0xffffffff);
266 ddb_out32(DDB_BAR51, 0xffffffff);
267 ddb_out32(DDB_BARB1, 0xffffffff);
268
269 /*
270 * We use pci master register 0 for memory space / config space
271 * And we use register 1 for IO space.
272 * Note that for memory space, we bump up the pci base address
273 * so that we have 1:1 mapping between PCI memory and cpu physical.
274 * For PCI IO space, it starts from 0 in PCI IO space but with
275 * DDB_xx_IO_BASE in CPU physical address space.
276 */
277 ddb_set_pmr(DDB_PCIINIT00, DDB_PCICMD_MEM, DDB_PCI0_MEM_BASE,
278 DDB_PCI_ACCESS_32);
279 ddb_set_pmr(DDB_PCIINIT10, DDB_PCICMD_IO, 0, DDB_PCI_ACCESS_32);
280
281 ddb_set_pmr(DDB_PCIINIT01, DDB_PCICMD_MEM, DDB_PCI1_MEM_BASE,
282 DDB_PCI_ACCESS_32);
283 ddb_set_pmr(DDB_PCIINIT11, DDB_PCICMD_IO, DDB_PCI0_IO_SIZE,
284 DDB_PCI_ACCESS_32);
285
286
287 /* PCI cross window should be set properly */
288 ddb_set_pdar(DDB_BARP00, DDB_PCI1_MEM_BASE, DDB_PCI1_MEM_SIZE, 32, 0, 1);
289 ddb_set_pdar(DDB_BARP10, DDB_PCI1_IO_BASE, DDB_PCI1_IO_SIZE, 32, 0, 1);
290 ddb_set_pdar(DDB_BARP01, DDB_PCI0_MEM_BASE, DDB_PCI0_MEM_SIZE, 32, 0, 1);
291 ddb_set_pdar(DDB_BARP11, DDB_PCI0_IO_BASE, DDB_PCI0_IO_SIZE, 32, 0, 1);
292
293 if (mips_machtype == MACH_NEC_ROCKHOPPER
294 || mips_machtype == MACH_NEC_ROCKHOPPERII) {
295 /* Disable bus diagnostics. */
296 ddb_out32(DDB_PCICTL0_L, 0);
297 ddb_out32(DDB_PCICTL0_H, 0);
298 ddb_out32(DDB_PCICTL1_L, 0);
299 ddb_out32(DDB_PCICTL1_H, 0);
300 }
301
302 if (mips_machtype == MACH_NEC_ROCKHOPPER) {
303 u16 vid;
304 struct pci_bus bus;
305 struct pci_dev dev_m1533;
306 extern struct pci_ops ddb5477_ext_pci_ops;
307
308 bus.parent = NULL; /* we scan the top level only */
309 bus.ops = &ddb5477_ext_pci_ops;
310 dev_m1533.bus = &bus;
311 dev_m1533.sysdata = NULL;
312 dev_m1533.devfn = 7*8; // slot 7: M1533 SouthBridge.
313 pci_read_config_word(&dev_m1533, 0, &vid);
314 if (vid == PCI_VENDOR_ID_AL) {
315 printk("Changing mips_machtype to MACH_NEC_ROCKHOPPERII\n");
316 mips_machtype = MACH_NEC_ROCKHOPPERII;
317 }
318 }
319
320 /* enable USB input buffers */
321 ddb_out32(DDB_PIBMISC, 0x00000007);
322
323 /* For dual-function pins, make them all non-GPIO */
324 ddb_out32(DDB_GIUFUNSEL, 0x0);
325 // ddb_out32(DDB_GIUFUNSEL, 0xfe0fcfff); /* NEC recommanded value */
326
327 if (mips_machtype == MACH_NEC_ROCKHOPPERII) {
328
329 /* enable IDE controller on Ali chip (south bridge) */
330 u8 temp8;
331 struct pci_bus bus;
332 struct pci_dev dev_m1533;
333 struct pci_dev dev_m5229;
334 extern struct pci_ops ddb5477_ext_pci_ops;
335
336 /* Setup M1535 registers */
337 bus.parent = NULL; /* we scan the top level only */
338 bus.ops = &ddb5477_ext_pci_ops;
339 dev_m1533.bus = &bus;
340 dev_m1533.sysdata = NULL;
341 dev_m1533.devfn = 7*8; // slot 7: M1533 SouthBridge.
342
343 /* setup IDE controller
344 * enable IDE controller (bit 6 - 1)
345 * IDE IDSEL to be addr:A15 (bit 4:5 - 11)
346 * disable IDE ATA Secondary Bus Signal Pad Control (bit 3 - 0)
347 * enable IDE ATA Primary Bus Signal Pad Control (bit 2 - 1)
348 */
349 pci_write_config_byte(&dev_m1533, 0x58, 0x74);
350
351 /*
352 * positive decode (bit6 -0)
353 * enable IDE controler interrupt (bit 4 -1)
354 * setup SIRQ to point to IRQ 14 (bit 3:0 - 1101)
355 */
356 pci_write_config_byte(&dev_m1533, 0x44, 0x1d);
357
358 /* Setup M5229 registers */
359 dev_m5229.bus = &bus;
360 dev_m5229.sysdata = NULL;
361 dev_m5229.devfn = 4*8; // slot 4 (AD15): M5229 IDE
362
363 /*
364 * enable IDE in the M5229 config register 0x50 (bit 0 - 1)
365 * M5229 IDSEL is addr:15; see above setting
366 */
367 pci_read_config_byte(&dev_m5229, 0x50, &temp8);
368 pci_write_config_byte(&dev_m5229, 0x50, temp8 | 0x1);
369
370 /*
371 * enable bus master (bit 2) and IO decoding (bit 0)
372 */
373 pci_read_config_byte(&dev_m5229, 0x04, &temp8);
374 pci_write_config_byte(&dev_m5229, 0x04, temp8 | 0x5);
375
376 /*
377 * enable native, copied from arch/ppc/k2boot/head.S
378 * TODO - need volatile, need to be portable
379 */
380 pci_write_config_byte(&dev_m5229, 0x09, 0xef);
381
382 /* Set Primary Channel Command Block Timing */
383 pci_write_config_byte(&dev_m5229, 0x59, 0x31);
384
385 /*
386 * Enable primary channel 40-pin cable
387 * M5229 register 0x4a (bit 0)
388 */
389 pci_read_config_byte(&dev_m5229, 0x4a, &temp8);
390 pci_write_config_byte(&dev_m5229, 0x4a, temp8 | 0x1);
391 }
392
393 if (mips_machtype == MACH_NEC_ROCKHOPPER
394 || mips_machtype == MACH_NEC_ROCKHOPPERII) {
395 printk("lcd44780: initializing\n");
396 lcd44780_init();
397 lcd44780_puts("MontaVista Linux");
398 }
399}
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