2 * Toshiba RBTX4939 setup routines.
3 * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
4 * and RBTX49xx patch from CELF patch archive.
6 * Copyright (C) 2000-2001,2005-2007 Toshiba Corporation
7 * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
8 * terms of the GNU General Public License version 2. This program is
9 * licensed "as is" without any warranty of any kind, whether express
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/platform_device.h>
16 #include <linux/leds.h>
17 #include <linux/interrupt.h>
18 #include <linux/smc91x.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/partitions.h>
21 #include <linux/mtd/map.h>
22 #include <asm/reboot.h>
23 #include <asm/txx9/generic.h>
24 #include <asm/txx9/pci.h>
25 #include <asm/txx9/rbtx4939.h>
27 static void rbtx4939_machine_restart(char *command)
30 writeb(1, rbtx4939_reseten_addr);
31 writeb(1, rbtx4939_softreset_addr);
36 static void __init rbtx4939_time_init(void)
41 #if defined(__BIG_ENDIAN) && \
42 (defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE))
43 #define HAVE_RBTX4939_IOSWAB
44 #define IS_CE1_ADDR(addr) \
45 ((((unsigned long)(addr) - IO_BASE) & 0xfff00000) == TXX9_CE(1))
46 static u16 rbtx4939_ioswabw(volatile u16 *a, u16 x)
48 return IS_CE1_ADDR(a) ? x : le16_to_cpu(x);
50 static u16 rbtx4939_mem_ioswabw(volatile u16 *a, u16 x)
52 return !IS_CE1_ADDR(a) ? x : le16_to_cpu(x);
54 #endif /* __BIG_ENDIAN && CONFIG_SMC91X */
56 static void __init rbtx4939_pci_setup(void)
59 int extarb = !(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCIARB);
60 struct pci_controller *c = &txx9_primary_pcic;
62 register_pci_controller(c);
64 tx4939_report_pciclk();
65 tx4927_pcic_setup(tx4939_pcicptr, c, extarb);
66 if (!(__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_ATA1MODE) &&
67 (__raw_readq(&tx4939_ccfgptr->pcfg) &
68 (TX4939_PCFG_ET0MODE | TX4939_PCFG_ET1MODE))) {
69 tx4939_report_pci1clk();
71 /* mem:64K(max), io:64K(max) (enough for ETH0,ETH1) */
72 c = txx9_alloc_pci_controller(NULL, 0, 0x10000, 0, 0x10000);
73 register_pci_controller(c);
74 tx4927_pcic_setup(tx4939_pcic1ptr, c, 0);
77 tx4939_setup_pcierr_irq();
78 #endif /* CONFIG_PCI */
81 static unsigned long long default_ebccr[] __initdata = {
82 0x01c0000000007608ULL, /* 64M ROM */
83 0x017f000000007049ULL, /* 1M IOC */
84 0x0180000000408608ULL, /* ISA */
88 static void __init rbtx4939_ebusc_setup(void)
93 /* use user-configured speed */
94 sp = TX4939_EBUSC_CR(0) & 0x30;
95 default_ebccr[0] |= sp;
96 default_ebccr[1] |= sp;
97 default_ebccr[2] |= sp;
98 /* initialise by myself */
99 for (i = 0; i < ARRAY_SIZE(default_ebccr); i++) {
100 if (default_ebccr[i])
101 ____raw_writeq(default_ebccr[i],
102 &tx4939_ebuscptr->cr[i]);
104 ____raw_writeq(____raw_readq(&tx4939_ebuscptr->cr[i])
106 &tx4939_ebuscptr->cr[i]);
110 static void __init rbtx4939_update_ioc_pen(void)
112 __u64 pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg);
113 __u64 ccfg = ____raw_readq(&tx4939_ccfgptr->ccfg);
114 __u8 pe1 = readb(rbtx4939_pe1_addr);
115 __u8 pe2 = readb(rbtx4939_pe2_addr);
116 __u8 pe3 = readb(rbtx4939_pe3_addr);
117 if (pcfg & TX4939_PCFG_ATA0MODE)
118 pe1 |= RBTX4939_PE1_ATA(0);
120 pe1 &= ~RBTX4939_PE1_ATA(0);
121 if (pcfg & TX4939_PCFG_ATA1MODE) {
122 pe1 |= RBTX4939_PE1_ATA(1);
123 pe1 &= ~(RBTX4939_PE1_RMII(0) | RBTX4939_PE1_RMII(1));
125 pe1 &= ~RBTX4939_PE1_ATA(1);
126 if (pcfg & TX4939_PCFG_ET0MODE)
127 pe1 |= RBTX4939_PE1_RMII(0);
129 pe1 &= ~RBTX4939_PE1_RMII(0);
130 if (pcfg & TX4939_PCFG_ET1MODE)
131 pe1 |= RBTX4939_PE1_RMII(1);
133 pe1 &= ~RBTX4939_PE1_RMII(1);
135 if (ccfg & TX4939_CCFG_PTSEL)
136 pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_P |
140 (TX4939_PCFG_VSSMODE | TX4939_PCFG_VPSMODE);
142 pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_P |
144 else if (vmode == TX4939_PCFG_VPSMODE) {
145 pe3 |= RBTX4939_PE3_VP_P;
146 pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_S);
147 } else if (vmode == TX4939_PCFG_VSSMODE) {
148 pe3 |= RBTX4939_PE3_VP | RBTX4939_PE3_VP_S;
149 pe3 &= ~RBTX4939_PE3_VP_P;
151 pe3 |= RBTX4939_PE3_VP | RBTX4939_PE3_VP_P;
152 pe3 &= ~RBTX4939_PE3_VP_S;
155 if (pcfg & TX4939_PCFG_SPIMODE) {
156 if (pcfg & TX4939_PCFG_SIO2MODE_GPIO)
157 pe2 &= ~(RBTX4939_PE2_SIO2 | RBTX4939_PE2_SIO0);
159 if (pcfg & TX4939_PCFG_SIO2MODE_SIO2) {
160 pe2 |= RBTX4939_PE2_SIO2;
161 pe2 &= ~RBTX4939_PE2_SIO0;
163 pe2 |= RBTX4939_PE2_SIO0;
164 pe2 &= ~RBTX4939_PE2_SIO2;
167 if (pcfg & TX4939_PCFG_SIO3MODE)
168 pe2 |= RBTX4939_PE2_SIO3;
170 pe2 &= ~RBTX4939_PE2_SIO3;
171 pe2 &= ~RBTX4939_PE2_SPI;
173 pe2 |= RBTX4939_PE2_SPI;
174 pe2 &= ~(RBTX4939_PE2_SIO3 | RBTX4939_PE2_SIO2 |
177 if ((pcfg & TX4939_PCFG_I2SMODE_MASK) == TX4939_PCFG_I2SMODE_GPIO)
178 pe2 |= RBTX4939_PE2_GPIO;
180 pe2 &= ~RBTX4939_PE2_GPIO;
181 writeb(pe1, rbtx4939_pe1_addr);
182 writeb(pe2, rbtx4939_pe2_addr);
183 writeb(pe3, rbtx4939_pe3_addr);
186 #define RBTX4939_MAX_7SEGLEDS 8
188 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
189 static u8 led_val[RBTX4939_MAX_7SEGLEDS];
190 struct rbtx4939_led_data {
191 struct led_classdev cdev;
196 /* Use "dot" in 7seg LEDs */
197 static void rbtx4939_led_brightness_set(struct led_classdev *led_cdev,
198 enum led_brightness value)
200 struct rbtx4939_led_data *led_dat =
201 container_of(led_cdev, struct rbtx4939_led_data, cdev);
202 unsigned int num = led_dat->num;
205 local_irq_save(flags);
206 led_val[num] = (led_val[num] & 0x7f) | (value ? 0x80 : 0);
207 writeb(led_val[num], rbtx4939_7seg_addr(num / 4, num % 4));
208 local_irq_restore(flags);
211 static int __init rbtx4939_led_probe(struct platform_device *pdev)
213 struct rbtx4939_led_data *leds_data;
215 static char *default_triggers[] __initdata = {
221 leds_data = kzalloc(sizeof(*leds_data) * RBTX4939_MAX_7SEGLEDS,
225 for (i = 0; i < RBTX4939_MAX_7SEGLEDS; i++) {
227 struct rbtx4939_led_data *led_dat = &leds_data[i];
230 led_dat->cdev.brightness_set = rbtx4939_led_brightness_set;
231 sprintf(led_dat->name, "rbtx4939:amber:%u", i);
232 led_dat->cdev.name = led_dat->name;
233 if (i < ARRAY_SIZE(default_triggers))
234 led_dat->cdev.default_trigger = default_triggers[i];
235 rc = led_classdev_register(&pdev->dev, &led_dat->cdev);
238 led_dat->cdev.brightness_set(&led_dat->cdev, 0);
244 static struct platform_driver rbtx4939_led_driver = {
246 .name = "rbtx4939-led",
247 .owner = THIS_MODULE,
251 static void __init rbtx4939_led_setup(void)
253 platform_device_register_simple("rbtx4939-led", -1, NULL, 0);
254 platform_driver_probe(&rbtx4939_led_driver, rbtx4939_led_probe);
257 static inline void rbtx4939_led_setup(void)
262 static void __rbtx4939_7segled_putc(unsigned int pos, unsigned char val)
264 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
266 local_irq_save(flags);
267 /* bit7: reserved for LED class */
268 led_val[pos] = (led_val[pos] & 0x80) | (val & 0x7f);
270 local_irq_restore(flags);
272 writeb(val, rbtx4939_7seg_addr(pos / 4, pos % 4));
275 static void rbtx4939_7segled_putc(unsigned int pos, unsigned char val)
277 /* convert from map_to_seg7() notation */
279 ((val & 0x40) >> 6) |
280 ((val & 0x20) >> 4) |
281 ((val & 0x10) >> 2) |
282 ((val & 0x04) << 2) |
283 ((val & 0x02) << 4) |
285 __rbtx4939_7segled_putc(pos, val);
288 #if defined(CONFIG_MTD_RBTX4939) || defined(CONFIG_MTD_RBTX4939_MODULE)
289 /* special mapping for boot rom */
290 static unsigned long rbtx4939_flash_fixup_ofs(unsigned long ofs)
292 u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
296 /* BOOT Mode: USER ROM1 / USER ROM2 */
298 /* rotate A[23:22] */
299 return (ofs & ~0xc00000) | ((((ofs >> 22) + shift) & 3) << 22);
303 /* BOOT Mode: Monitor ROM */
304 ofs ^= 0x400000; /* swap A[22] */
309 static map_word rbtx4939_flash_read16(struct map_info *map, unsigned long ofs)
313 ofs = rbtx4939_flash_fixup_ofs(ofs);
314 r.x[0] = __raw_readw(map->virt + ofs);
318 static void rbtx4939_flash_write16(struct map_info *map, const map_word datum,
321 ofs = rbtx4939_flash_fixup_ofs(ofs);
322 __raw_writew(datum.x[0], map->virt + ofs);
323 mb(); /* see inline_map_write() in mtd/map.h */
326 static void rbtx4939_flash_copy_from(struct map_info *map, void *to,
327 unsigned long from, ssize_t len)
329 u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
333 from += (unsigned long)map->virt;
335 /* BOOT Mode: USER ROM1 / USER ROM2 */
338 curlen = min_t(unsigned long, len,
339 0x400000 - (from & (0x400000 - 1)));
341 (void *)((from & ~0xc00000) |
342 ((((from >> 22) + shift) & 3) << 22)),
352 /* BOOT Mode: Monitor ROM */
354 curlen = min_t(unsigned long, len,
355 0x400000 - (from & (0x400000 - 1)));
356 memcpy(to, (void *)(from ^ 0x400000), curlen);
364 memcpy(to, (void *)from, len);
367 static void rbtx4939_flash_map_init(struct map_info *map)
369 map->read = rbtx4939_flash_read16;
370 map->write = rbtx4939_flash_write16;
371 map->copy_from = rbtx4939_flash_copy_from;
374 static void __init rbtx4939_mtd_init(void)
377 struct platform_device dev;
379 struct rbtx4939_flash_data data;
382 static char names[4][8];
383 static struct mtd_partition parts[4];
384 struct rbtx4939_flash_data *boot_pdata = &pdevs[0].data;
385 u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
388 /* BOOT Mode: USER ROM1 / USER ROM2 */
389 boot_pdata->nr_parts = 4;
390 for (i = 0; i < boot_pdata->nr_parts; i++) {
391 sprintf(names[i], "img%d", 4 - i);
392 parts[i].name = names[i];
393 parts[i].size = 0x400000;
394 parts[i].offset = MTDPART_OFS_NXTBLK;
396 } else if (bdipsw == 0) {
397 /* BOOT Mode: Monitor ROM */
398 boot_pdata->nr_parts = 2;
399 strcpy(names[0], "big");
400 strcpy(names[1], "little");
401 for (i = 0; i < boot_pdata->nr_parts; i++) {
402 parts[i].name = names[i];
403 parts[i].size = 0x400000;
404 parts[i].offset = MTDPART_OFS_NXTBLK;
407 /* BOOT Mode: ROM Emulator */
408 boot_pdata->nr_parts = 2;
409 parts[0].name = "boot";
410 parts[0].offset = 0xc00000;
411 parts[0].size = 0x400000;
412 parts[1].name = "user";
414 parts[1].size = 0xc00000;
416 boot_pdata->parts = parts;
417 boot_pdata->map_init = rbtx4939_flash_map_init;
419 for (i = 0; i < ARRAY_SIZE(pdevs); i++) {
420 struct resource *r = &pdevs[i].res;
421 struct platform_device *dev = &pdevs[i].dev;
423 r->start = 0x1f000000 - i * 0x1000000;
424 r->end = r->start + 0x1000000 - 1;
425 r->flags = IORESOURCE_MEM;
426 pdevs[i].data.width = 2;
427 dev->num_resources = 1;
430 dev->name = "rbtx4939-flash";
431 dev->dev.platform_data = &pdevs[i].data;
432 platform_device_register(dev);
436 static void __init rbtx4939_mtd_init(void)
441 static void __init rbtx4939_arch_init(void)
443 rbtx4939_pci_setup();
446 static void __init rbtx4939_device_init(void)
448 unsigned long smc_addr = RBTX4939_ETHER_ADDR - IO_BASE;
449 struct resource smc_res[] = {
452 .end = smc_addr + 0x10 - 1,
453 .flags = IORESOURCE_MEM,
455 .start = RBTX4939_IRQ_ETHER,
456 /* override default irq flag defined in smc91x.h */
457 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
460 struct smc91x_platdata smc_pdata = {
461 .flags = SMC91X_USE_16BIT,
463 struct platform_device *pdev;
464 #if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE)
466 unsigned char ethaddr[2][6];
467 u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
469 for (i = 0; i < 2; i++) {
470 unsigned long area = CKSEG1 + 0x1fff0000 + (i * 0x10);
472 memcpy(ethaddr[i], (void *)area, 6);
479 for (j = 0; j < 3; j++)
480 buf[j] = le16_to_cpup((u16 *)(area + j * 2));
481 memcpy(ethaddr[i], buf, 6);
484 tx4939_ethaddr_init(ethaddr[0], ethaddr[1]);
486 pdev = platform_device_alloc("smc91x", -1);
488 platform_device_add_resources(pdev, smc_res, ARRAY_SIZE(smc_res)) ||
489 platform_device_add_data(pdev, &smc_pdata, sizeof(smc_pdata)) ||
490 platform_device_add(pdev))
491 platform_device_put(pdev);
493 /* TC58DVM82A1FT: tDH=10ns, tWP=tRP=tREADID=35ns */
494 tx4939_ndfmc_init(10, 35,
496 (1 << 2)); /* ch1:8bit, ch2:16bit */
497 rbtx4939_led_setup();
501 tx4939_dmac_init(0, 2);
504 static void __init rbtx4939_setup(void)
508 rbtx4939_ebusc_setup();
509 /* always enable ATA0 */
510 txx9_set64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_ATA0MODE);
511 rbtx4939_update_ioc_pen();
512 if (txx9_master_clock == 0)
513 txx9_master_clock = 20000000;
515 #ifdef HAVE_RBTX4939_IOSWAB
516 ioswabw = rbtx4939_ioswabw;
517 __mem_ioswabw = rbtx4939_mem_ioswabw;
520 _machine_restart = rbtx4939_machine_restart;
522 txx9_7segled_init(RBTX4939_MAX_7SEGLEDS, rbtx4939_7segled_putc);
523 for (i = 0; i < RBTX4939_MAX_7SEGLEDS; i++)
524 txx9_7segled_putc(i, '-');
525 pr_info("RBTX4939 (Rev %02x) --- FPGA(Rev %02x) DIPSW:%02x,%02x\n",
526 readb(rbtx4939_board_rev_addr), readb(rbtx4939_ioc_rev_addr),
527 readb(rbtx4939_udipsw_addr), readb(rbtx4939_bdipsw_addr));
530 txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
531 txx9_board_pcibios_setup = tx4927_pcibios_setup;
533 set_io_port_base(RBTX4939_ETHER_BASE);
536 tx4939_sio_init(TX4939_SCLK0(txx9_master_clock), 0);
539 struct txx9_board_vec rbtx4939_vec __initdata = {
540 .system = "Toshiba RBTX4939",
541 .prom_init = rbtx4939_prom_init,
542 .mem_setup = rbtx4939_setup,
543 .irq_setup = rbtx4939_irq_setup,
544 .time_init = rbtx4939_time_init,
545 .device_init = rbtx4939_device_init,
546 .arch_init = rbtx4939_arch_init,
548 .pci_map_irq = tx4939_pci_map_irq,