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12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/console.h>
15#include <linux/interrupt.h>
16#include <linux/gpio.h>
17#include <linux/platform_device.h>
18#include <linux/i2c.h>
19#include <linux/i2c/pcf857x.h>
20#include <linux/i2c/at24.h>
21#include <linux/mtd/mtd.h>
22#include <linux/mtd/partitions.h>
23#include <linux/spi/spi.h>
24#include <linux/spi/flash.h>
25
26#include <asm/mach-types.h>
27#include <asm/mach/arch.h>
28
29#include <mach/cp_intc.h>
30#include <mach/mux.h>
31#include <linux/platform_data/mtd-davinci.h>
32#include <mach/da8xx.h>
33#include <linux/platform_data/usb-davinci.h>
34#include <linux/platform_data/mtd-davinci-aemif.h>
35#include <linux/platform_data/spi-davinci.h>
36
37#define DA830_EVM_PHY_ID ""
38
39
40
41#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
42#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
43
44static const short da830_evm_usb11_pins[] = {
45 DA830_GPIO1_15, DA830_GPIO2_4,
46 -1
47};
48
49static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
50
51static int da830_evm_usb_set_power(unsigned port, int on)
52{
53 gpio_set_value(ON_BD_USB_DRV, on);
54 return 0;
55}
56
57static int da830_evm_usb_get_power(unsigned port)
58{
59 return gpio_get_value(ON_BD_USB_DRV);
60}
61
62static int da830_evm_usb_get_oci(unsigned port)
63{
64 return !gpio_get_value(ON_BD_USB_OVC);
65}
66
67static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
68
69static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
70{
71 int irq = gpio_to_irq(ON_BD_USB_OVC);
72 int error = 0;
73
74 if (handler != NULL) {
75 da830_evm_usb_ocic_handler = handler;
76
77 error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
78 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
79 "OHCI over-current indicator", NULL);
80 if (error)
81 printk(KERN_ERR "%s: could not request IRQ to watch "
82 "over-current indicator changes\n", __func__);
83 } else
84 free_irq(irq, NULL);
85
86 return error;
87}
88
89static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
90 .set_power = da830_evm_usb_set_power,
91 .get_power = da830_evm_usb_get_power,
92 .get_oci = da830_evm_usb_get_oci,
93 .ocic_notify = da830_evm_usb_ocic_notify,
94
95
96 .potpgt = (3 + 1) / 2,
97};
98
99static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
100{
101 da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
102 return IRQ_HANDLED;
103}
104
105static __init void da830_evm_usb_init(void)
106{
107 u32 cfgchip2;
108 int ret;
109
110
111
112
113
114 cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
115
116
117 cfgchip2 &= ~CFGCHIP2_REFFREQ;
118 cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
119
120
121
122
123
124
125 cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
126 cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
127
128
129
130
131
132
133
134 cfgchip2 &= ~CFGCHIP2_OTGMODE;
135#ifdef CONFIG_USB_MUSB_HOST
136 cfgchip2 |= CFGCHIP2_FORCE_HOST;
137#else
138 cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
139#endif
140
141 __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
142
143
144 ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
145 if (ret)
146 pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
147 __func__, ret);
148 else {
149
150
151
152
153 ret = da8xx_register_usb20(1000, 3);
154 if (ret)
155 pr_warning("%s: USB 2.0 registration failed: %d\n",
156 __func__, ret);
157 }
158
159 ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
160 if (ret) {
161 pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
162 __func__, ret);
163 return;
164 }
165
166 ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
167 if (ret) {
168 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
169 "power control: %d\n", __func__, ret);
170 return;
171 }
172 gpio_direction_output(ON_BD_USB_DRV, 0);
173
174 ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
175 if (ret) {
176 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
177 "over-current indicator: %d\n", __func__, ret);
178 return;
179 }
180 gpio_direction_input(ON_BD_USB_OVC);
181
182 ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
183 if (ret)
184 pr_warning("%s: USB 1.1 registration failed: %d\n",
185 __func__, ret);
186}
187
188static const short da830_evm_mcasp1_pins[] = {
189 DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
190 DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
191 DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
192 DA830_AXR1_11,
193 -1
194};
195
196static u8 da830_iis_serializer_direction[] = {
197 RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
198 INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
199 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
200};
201
202static struct snd_platform_data da830_evm_snd_data = {
203 .tx_dma_offset = 0x2000,
204 .rx_dma_offset = 0x2000,
205 .op_mode = DAVINCI_MCASP_IIS_MODE,
206 .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
207 .tdm_slots = 2,
208 .serial_dir = da830_iis_serializer_direction,
209 .asp_chan_q = EVENTQ_0,
210 .version = MCASP_VERSION_2,
211 .txnumevt = 1,
212 .rxnumevt = 1,
213};
214
215
216
217
218static const short da830_evm_mmc_sd_pins[] = {
219 DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
220 DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
221 DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
222 DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
223 -1
224};
225
226#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
227#define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2)
228
229static int da830_evm_mmc_get_ro(int index)
230{
231 return gpio_get_value(DA830_MMCSD_WP_PIN);
232}
233
234static int da830_evm_mmc_get_cd(int index)
235{
236 return !gpio_get_value(DA830_MMCSD_CD_PIN);
237}
238
239static struct davinci_mmc_config da830_evm_mmc_config = {
240 .get_ro = da830_evm_mmc_get_ro,
241 .get_cd = da830_evm_mmc_get_cd,
242 .wires = 8,
243 .max_freq = 50000000,
244 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
245};
246
247static inline void da830_evm_init_mmc(void)
248{
249 int ret;
250
251 ret = davinci_cfg_reg_list(da830_evm_mmc_sd_pins);
252 if (ret) {
253 pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
254 ret);
255 return;
256 }
257
258 ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
259 if (ret) {
260 pr_warning("da830_evm_init: can not open GPIO %d\n",
261 DA830_MMCSD_WP_PIN);
262 return;
263 }
264 gpio_direction_input(DA830_MMCSD_WP_PIN);
265
266 ret = gpio_request(DA830_MMCSD_CD_PIN, "MMC CD\n");
267 if (ret) {
268 pr_warning("da830_evm_init: can not open GPIO %d\n",
269 DA830_MMCSD_CD_PIN);
270 return;
271 }
272 gpio_direction_input(DA830_MMCSD_CD_PIN);
273
274 ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
275 if (ret) {
276 pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
277 ret);
278 gpio_free(DA830_MMCSD_WP_PIN);
279 }
280}
281
282
283
284
285static const short da830_evm_emif25_pins[] = {
286 DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
287 DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
288 DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
289 DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
290 DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
291 DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
292 DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
293 -1
294};
295
296#define HAS_MMC IS_ENABLED(CONFIG_MMC_DAVINCI)
297
298#ifdef CONFIG_DA830_UI_NAND
299static struct mtd_partition da830_evm_nand_partitions[] = {
300
301 [0] = {
302 .name = "bootloader",
303 .offset = 0,
304 .size = SZ_128K,
305 .mask_flags = MTD_WRITEABLE,
306 },
307
308 [1] = {
309 .name = "params",
310 .offset = MTDPART_OFS_APPEND,
311 .size = SZ_128K,
312 .mask_flags = MTD_WRITEABLE,
313 },
314
315 [2] = {
316 .name = "kernel",
317 .offset = MTDPART_OFS_APPEND,
318 .size = SZ_2M,
319 .mask_flags = 0,
320 },
321
322 [3] = {
323 .name = "filesystem",
324 .offset = MTDPART_OFS_APPEND,
325 .size = MTDPART_SIZ_FULL,
326 .mask_flags = 0,
327 }
328};
329
330
331static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
332static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
333
334static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
335 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
336 NAND_BBT_WRITE | NAND_BBT_2BIT |
337 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
338 .offs = 2,
339 .len = 4,
340 .veroffs = 16,
341 .maxblocks = 4,
342 .pattern = da830_evm_nand_bbt_pattern
343};
344
345static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
346 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
347 NAND_BBT_WRITE | NAND_BBT_2BIT |
348 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
349 .offs = 2,
350 .len = 4,
351 .veroffs = 16,
352 .maxblocks = 4,
353 .pattern = da830_evm_nand_mirror_pattern
354};
355
356static struct davinci_aemif_timing da830_evm_nandflash_timing = {
357 .wsetup = 24,
358 .wstrobe = 21,
359 .whold = 14,
360 .rsetup = 19,
361 .rstrobe = 50,
362 .rhold = 0,
363 .ta = 20,
364};
365
366static struct davinci_nand_pdata da830_evm_nand_pdata = {
367 .parts = da830_evm_nand_partitions,
368 .nr_parts = ARRAY_SIZE(da830_evm_nand_partitions),
369 .ecc_mode = NAND_ECC_HW,
370 .ecc_bits = 4,
371 .bbt_options = NAND_BBT_USE_FLASH,
372 .bbt_td = &da830_evm_nand_bbt_main_descr,
373 .bbt_md = &da830_evm_nand_bbt_mirror_descr,
374 .timing = &da830_evm_nandflash_timing,
375};
376
377static struct resource da830_evm_nand_resources[] = {
378 [0] = {
379 .start = DA8XX_AEMIF_CS3_BASE,
380 .end = DA8XX_AEMIF_CS3_BASE + PAGE_SIZE - 1,
381 .flags = IORESOURCE_MEM,
382 },
383 [1] = {
384 .start = DA8XX_AEMIF_CTL_BASE,
385 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
386 .flags = IORESOURCE_MEM,
387 },
388};
389
390static struct platform_device da830_evm_nand_device = {
391 .name = "davinci_nand",
392 .id = 1,
393 .dev = {
394 .platform_data = &da830_evm_nand_pdata,
395 },
396 .num_resources = ARRAY_SIZE(da830_evm_nand_resources),
397 .resource = da830_evm_nand_resources,
398};
399
400static inline void da830_evm_init_nand(int mux_mode)
401{
402 int ret;
403
404 if (HAS_MMC) {
405 pr_warning("WARNING: both MMC/SD and NAND are "
406 "enabled, but they share AEMIF pins.\n"
407 "\tDisable MMC/SD for NAND support.\n");
408 return;
409 }
410
411 ret = davinci_cfg_reg_list(da830_evm_emif25_pins);
412 if (ret)
413 pr_warning("da830_evm_init: emif25 mux setup failed: %d\n",
414 ret);
415
416 ret = platform_device_register(&da830_evm_nand_device);
417 if (ret)
418 pr_warning("da830_evm_init: NAND device not registered.\n");
419
420 gpio_direction_output(mux_mode, 1);
421}
422#else
423static inline void da830_evm_init_nand(int mux_mode) { }
424#endif
425
426#ifdef CONFIG_DA830_UI_LCD
427static inline void da830_evm_init_lcdc(int mux_mode)
428{
429 int ret;
430
431 ret = davinci_cfg_reg_list(da830_lcdcntl_pins);
432 if (ret)
433 pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
434 ret);
435
436 ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
437 if (ret)
438 pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
439
440 gpio_direction_output(mux_mode, 0);
441}
442#else
443static inline void da830_evm_init_lcdc(int mux_mode) { }
444#endif
445
446static struct at24_platform_data da830_evm_i2c_eeprom_info = {
447 .byte_len = SZ_256K / 8,
448 .page_size = 64,
449 .flags = AT24_FLAG_ADDR16,
450 .setup = davinci_get_mac_addr,
451 .context = (void *)0x7f00,
452};
453
454static int __init da830_evm_ui_expander_setup(struct i2c_client *client,
455 int gpio, unsigned ngpio, void *context)
456{
457 gpio_request(gpio + 6, "UI MUX_MODE");
458
459
460 gpio_direction_output(gpio + 6, 0);
461
462 da830_evm_init_lcdc(gpio + 6);
463
464 da830_evm_init_nand(gpio + 6);
465
466 return 0;
467}
468
469static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
470 unsigned ngpio, void *context)
471{
472 gpio_free(gpio + 6);
473 return 0;
474}
475
476static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = {
477 .gpio_base = DAVINCI_N_GPIO,
478 .setup = da830_evm_ui_expander_setup,
479 .teardown = da830_evm_ui_expander_teardown,
480};
481
482static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
483 {
484 I2C_BOARD_INFO("24c256", 0x50),
485 .platform_data = &da830_evm_i2c_eeprom_info,
486 },
487 {
488 I2C_BOARD_INFO("tlv320aic3x", 0x18),
489 },
490 {
491 I2C_BOARD_INFO("pcf8574", 0x3f),
492 .platform_data = &da830_evm_ui_expander_info,
493 },
494};
495
496static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
497 .bus_freq = 100,
498 .bus_delay = 0,
499};
500
501
502
503
504
505
506static const s16 da830_dma_rsv_chans[][2] = {
507
508 { 8, 2},
509 {12, 2},
510 {24, 4},
511 {30, 2},
512 {-1, -1}
513};
514
515static const s16 da830_dma_rsv_slots[][2] = {
516
517 { 8, 2},
518 {12, 2},
519 {24, 4},
520 {30, 26},
521 {-1, -1}
522};
523
524static struct edma_rsv_info da830_edma_rsv[] = {
525 {
526 .rsv_chans = da830_dma_rsv_chans,
527 .rsv_slots = da830_dma_rsv_slots,
528 },
529};
530
531static struct mtd_partition da830evm_spiflash_part[] = {
532 [0] = {
533 .name = "DSP-UBL",
534 .offset = 0,
535 .size = SZ_8K,
536 .mask_flags = MTD_WRITEABLE,
537 },
538 [1] = {
539 .name = "ARM-UBL",
540 .offset = MTDPART_OFS_APPEND,
541 .size = SZ_16K + SZ_8K,
542 .mask_flags = MTD_WRITEABLE,
543 },
544 [2] = {
545 .name = "U-Boot",
546 .offset = MTDPART_OFS_APPEND,
547 .size = SZ_256K - SZ_32K,
548 .mask_flags = MTD_WRITEABLE,
549 },
550 [3] = {
551 .name = "U-Boot-Environment",
552 .offset = MTDPART_OFS_APPEND,
553 .size = SZ_16K,
554 .mask_flags = 0,
555 },
556 [4] = {
557 .name = "Kernel",
558 .offset = MTDPART_OFS_APPEND,
559 .size = MTDPART_SIZ_FULL,
560 .mask_flags = 0,
561 },
562};
563
564static struct flash_platform_data da830evm_spiflash_data = {
565 .name = "m25p80",
566 .parts = da830evm_spiflash_part,
567 .nr_parts = ARRAY_SIZE(da830evm_spiflash_part),
568 .type = "w25x32",
569};
570
571static struct davinci_spi_config da830evm_spiflash_cfg = {
572 .io_type = SPI_IO_TYPE_DMA,
573 .c2tdelay = 8,
574 .t2cdelay = 8,
575};
576
577static struct spi_board_info da830evm_spi_info[] = {
578 {
579 .modalias = "m25p80",
580 .platform_data = &da830evm_spiflash_data,
581 .controller_data = &da830evm_spiflash_cfg,
582 .mode = SPI_MODE_0,
583 .max_speed_hz = 30000000,
584 .bus_num = 0,
585 .chip_select = 0,
586 },
587};
588
589static __init void da830_evm_init(void)
590{
591 struct davinci_soc_info *soc_info = &davinci_soc_info;
592 int ret;
593
594 ret = da830_register_edma(da830_edma_rsv);
595 if (ret)
596 pr_warning("da830_evm_init: edma registration failed: %d\n",
597 ret);
598
599 ret = davinci_cfg_reg_list(da830_i2c0_pins);
600 if (ret)
601 pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
602 ret);
603
604 ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
605 if (ret)
606 pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
607 ret);
608
609 da830_evm_usb_init();
610
611 soc_info->emac_pdata->rmii_en = 1;
612 soc_info->emac_pdata->phy_id = DA830_EVM_PHY_ID;
613
614 ret = davinci_cfg_reg_list(da830_cpgmac_pins);
615 if (ret)
616 pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
617 ret);
618
619 ret = da8xx_register_emac();
620 if (ret)
621 pr_warning("da830_evm_init: emac registration failed: %d\n",
622 ret);
623
624 ret = da8xx_register_watchdog();
625 if (ret)
626 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
627 ret);
628
629 davinci_serial_init(da8xx_serial_device);
630 i2c_register_board_info(1, da830_evm_i2c_devices,
631 ARRAY_SIZE(da830_evm_i2c_devices));
632
633 ret = davinci_cfg_reg_list(da830_evm_mcasp1_pins);
634 if (ret)
635 pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
636 ret);
637
638 da8xx_register_mcasp(1, &da830_evm_snd_data);
639
640 da830_evm_init_mmc();
641
642 ret = da8xx_register_rtc();
643 if (ret)
644 pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
645
646 ret = spi_register_board_info(da830evm_spi_info,
647 ARRAY_SIZE(da830evm_spi_info));
648 if (ret)
649 pr_warn("%s: spi info registration failed: %d\n", __func__,
650 ret);
651
652 ret = da8xx_register_spi_bus(0, ARRAY_SIZE(da830evm_spi_info));
653 if (ret)
654 pr_warning("da830_evm_init: spi 0 registration failed: %d\n",
655 ret);
656}
657
658#ifdef CONFIG_SERIAL_8250_CONSOLE
659static int __init da830_evm_console_init(void)
660{
661 if (!machine_is_davinci_da830_evm())
662 return 0;
663
664 return add_preferred_console("ttyS", 2, "115200");
665}
666console_initcall(da830_evm_console_init);
667#endif
668
669static void __init da830_evm_map_io(void)
670{
671 da830_init();
672}
673
674MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM")
675 .atag_offset = 0x100,
676 .map_io = da830_evm_map_io,
677 .init_irq = cp_intc_init,
678 .init_time = davinci_timer_init,
679 .init_machine = da830_evm_init,
680 .init_late = davinci_init_late,
681 .dma_zone_size = SZ_128M,
682 .restart = da8xx_restart,
683MACHINE_END
684
