board-dm365-evm.c 18 KB

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  1. /*
  2. * TI DaVinci DM365 EVM board support
  3. *
  4. * Copyright (C) 2009 Texas Instruments Incorporated
  5. *
  6. * This program is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU General Public License as
  8. * published by the Free Software Foundation version 2.
  9. *
  10. * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  11. * kind, whether express or implied; without even the implied warranty
  12. * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. */
  15. #include <linux/kernel.h>
  16. #include <linux/init.h>
  17. #include <linux/err.h>
  18. #include <linux/i2c.h>
  19. #include <linux/io.h>
  20. #include <linux/clk.h>
  21. #include <linux/i2c/at24.h>
  22. #include <linux/leds.h>
  23. #include <linux/mtd/mtd.h>
  24. #include <linux/mtd/partitions.h>
  25. #include <linux/slab.h>
  26. #include <linux/mtd/nand.h>
  27. #include <linux/input.h>
  28. #include <linux/spi/spi.h>
  29. #include <linux/spi/eeprom.h>
  30. #include <linux/v4l2-dv-timings.h>
  31. #include <asm/mach-types.h>
  32. #include <asm/mach/arch.h>
  33. #include <mach/mux.h>
  34. #include <mach/common.h>
  35. #include <linux/platform_data/i2c-davinci.h>
  36. #include <mach/serial.h>
  37. #include <linux/platform_data/mmc-davinci.h>
  38. #include <linux/platform_data/mtd-davinci.h>
  39. #include <linux/platform_data/keyscan-davinci.h>
  40. #include <media/ths7303.h>
  41. #include <media/tvp514x.h>
  42. #include "davinci.h"
  43. static inline int have_imager(void)
  44. {
  45. /* REVISIT when it's supported, trigger via Kconfig */
  46. return 0;
  47. }
  48. static inline int have_tvp7002(void)
  49. {
  50. /* REVISIT when it's supported, trigger via Kconfig */
  51. return 0;
  52. }
  53. #define DM365_EVM_PHY_ID "davinci_mdio-0:01"
  54. /*
  55. * A MAX-II CPLD is used for various board control functions.
  56. */
  57. #define CPLD_OFFSET(a13a8,a2a1) (((a13a8) << 10) + ((a2a1) << 3))
  58. #define CPLD_VERSION CPLD_OFFSET(0,0) /* r/o */
  59. #define CPLD_TEST CPLD_OFFSET(0,1)
  60. #define CPLD_LEDS CPLD_OFFSET(0,2)
  61. #define CPLD_MUX CPLD_OFFSET(0,3)
  62. #define CPLD_SWITCH CPLD_OFFSET(1,0) /* r/o */
  63. #define CPLD_POWER CPLD_OFFSET(1,1)
  64. #define CPLD_VIDEO CPLD_OFFSET(1,2)
  65. #define CPLD_CARDSTAT CPLD_OFFSET(1,3) /* r/o */
  66. #define CPLD_DILC_OUT CPLD_OFFSET(2,0)
  67. #define CPLD_DILC_IN CPLD_OFFSET(2,1) /* r/o */
  68. #define CPLD_IMG_DIR0 CPLD_OFFSET(2,2)
  69. #define CPLD_IMG_MUX0 CPLD_OFFSET(2,3)
  70. #define CPLD_IMG_MUX1 CPLD_OFFSET(3,0)
  71. #define CPLD_IMG_DIR1 CPLD_OFFSET(3,1)
  72. #define CPLD_IMG_MUX2 CPLD_OFFSET(3,2)
  73. #define CPLD_IMG_MUX3 CPLD_OFFSET(3,3)
  74. #define CPLD_IMG_DIR2 CPLD_OFFSET(4,0)
  75. #define CPLD_IMG_MUX4 CPLD_OFFSET(4,1)
  76. #define CPLD_IMG_MUX5 CPLD_OFFSET(4,2)
  77. #define CPLD_RESETS CPLD_OFFSET(4,3)
  78. #define CPLD_CCD_DIR1 CPLD_OFFSET(0x3e,0)
  79. #define CPLD_CCD_IO1 CPLD_OFFSET(0x3e,1)
  80. #define CPLD_CCD_DIR2 CPLD_OFFSET(0x3e,2)
  81. #define CPLD_CCD_IO2 CPLD_OFFSET(0x3e,3)
  82. #define CPLD_CCD_DIR3 CPLD_OFFSET(0x3f,0)
  83. #define CPLD_CCD_IO3 CPLD_OFFSET(0x3f,1)
  84. static void __iomem *cpld;
  85. /* NOTE: this is geared for the standard config, with a socketed
  86. * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
  87. * swap chips with a different block size, partitioning will
  88. * need to be changed. This NAND chip MT29F16G08FAA is the default
  89. * NAND shipped with the Spectrum Digital DM365 EVM
  90. */
  91. #define NAND_BLOCK_SIZE SZ_128K
  92. static struct mtd_partition davinci_nand_partitions[] = {
  93. {
  94. /* UBL (a few copies) plus U-Boot */
  95. .name = "bootloader",
  96. .offset = 0,
  97. .size = 30 * NAND_BLOCK_SIZE,
  98. .mask_flags = MTD_WRITEABLE, /* force read-only */
  99. }, {
  100. /* U-Boot environment */
  101. .name = "params",
  102. .offset = MTDPART_OFS_APPEND,
  103. .size = 2 * NAND_BLOCK_SIZE,
  104. .mask_flags = 0,
  105. }, {
  106. .name = "kernel",
  107. .offset = MTDPART_OFS_APPEND,
  108. .size = SZ_4M,
  109. .mask_flags = 0,
  110. }, {
  111. .name = "filesystem1",
  112. .offset = MTDPART_OFS_APPEND,
  113. .size = SZ_512M,
  114. .mask_flags = 0,
  115. }, {
  116. .name = "filesystem2",
  117. .offset = MTDPART_OFS_APPEND,
  118. .size = MTDPART_SIZ_FULL,
  119. .mask_flags = 0,
  120. }
  121. /* two blocks with bad block table (and mirror) at the end */
  122. };
  123. static struct davinci_nand_pdata davinci_nand_data = {
  124. .mask_chipsel = BIT(14),
  125. .parts = davinci_nand_partitions,
  126. .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
  127. .ecc_mode = NAND_ECC_HW,
  128. .bbt_options = NAND_BBT_USE_FLASH,
  129. .ecc_bits = 4,
  130. };
  131. static struct resource davinci_nand_resources[] = {
  132. {
  133. .start = DM365_ASYNC_EMIF_DATA_CE0_BASE,
  134. .end = DM365_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  135. .flags = IORESOURCE_MEM,
  136. }, {
  137. .start = DM365_ASYNC_EMIF_CONTROL_BASE,
  138. .end = DM365_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  139. .flags = IORESOURCE_MEM,
  140. },
  141. };
  142. static struct platform_device davinci_nand_device = {
  143. .name = "davinci_nand",
  144. .id = 0,
  145. .num_resources = ARRAY_SIZE(davinci_nand_resources),
  146. .resource = davinci_nand_resources,
  147. .dev = {
  148. .platform_data = &davinci_nand_data,
  149. },
  150. };
  151. static struct at24_platform_data eeprom_info = {
  152. .byte_len = (256*1024) / 8,
  153. .page_size = 64,
  154. .flags = AT24_FLAG_ADDR16,
  155. .setup = davinci_get_mac_addr,
  156. .context = (void *)0x7f00,
  157. };
  158. static struct snd_platform_data dm365_evm_snd_data = {
  159. .asp_chan_q = EVENTQ_3,
  160. };
  161. static struct i2c_board_info i2c_info[] = {
  162. {
  163. I2C_BOARD_INFO("24c256", 0x50),
  164. .platform_data = &eeprom_info,
  165. },
  166. {
  167. I2C_BOARD_INFO("tlv320aic3x", 0x18),
  168. },
  169. };
  170. static struct davinci_i2c_platform_data i2c_pdata = {
  171. .bus_freq = 400 /* kHz */,
  172. .bus_delay = 0 /* usec */,
  173. };
  174. static int dm365evm_keyscan_enable(struct device *dev)
  175. {
  176. return davinci_cfg_reg(DM365_KEYSCAN);
  177. }
  178. static unsigned short dm365evm_keymap[] = {
  179. KEY_KP2,
  180. KEY_LEFT,
  181. KEY_EXIT,
  182. KEY_DOWN,
  183. KEY_ENTER,
  184. KEY_UP,
  185. KEY_KP1,
  186. KEY_RIGHT,
  187. KEY_MENU,
  188. KEY_RECORD,
  189. KEY_REWIND,
  190. KEY_KPMINUS,
  191. KEY_STOP,
  192. KEY_FASTFORWARD,
  193. KEY_KPPLUS,
  194. KEY_PLAYPAUSE,
  195. 0
  196. };
  197. static struct davinci_ks_platform_data dm365evm_ks_data = {
  198. .device_enable = dm365evm_keyscan_enable,
  199. .keymap = dm365evm_keymap,
  200. .keymapsize = ARRAY_SIZE(dm365evm_keymap),
  201. .rep = 1,
  202. /* Scan period = strobe + interval */
  203. .strobe = 0x5,
  204. .interval = 0x2,
  205. .matrix_type = DAVINCI_KEYSCAN_MATRIX_4X4,
  206. };
  207. static int cpld_mmc_get_cd(int module)
  208. {
  209. if (!cpld)
  210. return -ENXIO;
  211. /* low == card present */
  212. return !(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 4 : 0));
  213. }
  214. static int cpld_mmc_get_ro(int module)
  215. {
  216. if (!cpld)
  217. return -ENXIO;
  218. /* high == card's write protect switch active */
  219. return !!(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 5 : 1));
  220. }
  221. static struct davinci_mmc_config dm365evm_mmc_config = {
  222. .get_cd = cpld_mmc_get_cd,
  223. .get_ro = cpld_mmc_get_ro,
  224. .wires = 4,
  225. .max_freq = 50000000,
  226. .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
  227. };
  228. static void dm365evm_emac_configure(void)
  229. {
  230. /*
  231. * EMAC pins are multiplexed with GPIO and UART
  232. * Further details are available at the DM365 ARM
  233. * Subsystem Users Guide(sprufg5.pdf) pages 125 - 127
  234. */
  235. davinci_cfg_reg(DM365_EMAC_TX_EN);
  236. davinci_cfg_reg(DM365_EMAC_TX_CLK);
  237. davinci_cfg_reg(DM365_EMAC_COL);
  238. davinci_cfg_reg(DM365_EMAC_TXD3);
  239. davinci_cfg_reg(DM365_EMAC_TXD2);
  240. davinci_cfg_reg(DM365_EMAC_TXD1);
  241. davinci_cfg_reg(DM365_EMAC_TXD0);
  242. davinci_cfg_reg(DM365_EMAC_RXD3);
  243. davinci_cfg_reg(DM365_EMAC_RXD2);
  244. davinci_cfg_reg(DM365_EMAC_RXD1);
  245. davinci_cfg_reg(DM365_EMAC_RXD0);
  246. davinci_cfg_reg(DM365_EMAC_RX_CLK);
  247. davinci_cfg_reg(DM365_EMAC_RX_DV);
  248. davinci_cfg_reg(DM365_EMAC_RX_ER);
  249. davinci_cfg_reg(DM365_EMAC_CRS);
  250. davinci_cfg_reg(DM365_EMAC_MDIO);
  251. davinci_cfg_reg(DM365_EMAC_MDCLK);
  252. /*
  253. * EMAC interrupts are multiplexed with GPIO interrupts
  254. * Details are available at the DM365 ARM
  255. * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134
  256. */
  257. davinci_cfg_reg(DM365_INT_EMAC_RXTHRESH);
  258. davinci_cfg_reg(DM365_INT_EMAC_RXPULSE);
  259. davinci_cfg_reg(DM365_INT_EMAC_TXPULSE);
  260. davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
  261. }
  262. static void dm365evm_mmc_configure(void)
  263. {
  264. /*
  265. * MMC/SD pins are multiplexed with GPIO and EMIF
  266. * Further details are available at the DM365 ARM
  267. * Subsystem Users Guide(sprufg5.pdf) pages 118, 128 - 131
  268. */
  269. davinci_cfg_reg(DM365_SD1_CLK);
  270. davinci_cfg_reg(DM365_SD1_CMD);
  271. davinci_cfg_reg(DM365_SD1_DATA3);
  272. davinci_cfg_reg(DM365_SD1_DATA2);
  273. davinci_cfg_reg(DM365_SD1_DATA1);
  274. davinci_cfg_reg(DM365_SD1_DATA0);
  275. }
  276. static struct tvp514x_platform_data tvp5146_pdata = {
  277. .clk_polarity = 0,
  278. .hs_polarity = 1,
  279. .vs_polarity = 1
  280. };
  281. #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
  282. /* Inputs available at the TVP5146 */
  283. static struct v4l2_input tvp5146_inputs[] = {
  284. {
  285. .index = 0,
  286. .name = "Composite",
  287. .type = V4L2_INPUT_TYPE_CAMERA,
  288. .std = TVP514X_STD_ALL,
  289. },
  290. {
  291. .index = 1,
  292. .name = "S-Video",
  293. .type = V4L2_INPUT_TYPE_CAMERA,
  294. .std = TVP514X_STD_ALL,
  295. },
  296. };
  297. /*
  298. * this is the route info for connecting each input to decoder
  299. * ouput that goes to vpfe. There is a one to one correspondence
  300. * with tvp5146_inputs
  301. */
  302. static struct vpfe_route tvp5146_routes[] = {
  303. {
  304. .input = INPUT_CVBS_VI2B,
  305. .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
  306. },
  307. {
  308. .input = INPUT_SVIDEO_VI2C_VI1C,
  309. .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
  310. },
  311. };
  312. static struct vpfe_subdev_info vpfe_sub_devs[] = {
  313. {
  314. .name = "tvp5146",
  315. .grp_id = 0,
  316. .num_inputs = ARRAY_SIZE(tvp5146_inputs),
  317. .inputs = tvp5146_inputs,
  318. .routes = tvp5146_routes,
  319. .can_route = 1,
  320. .ccdc_if_params = {
  321. .if_type = VPFE_BT656,
  322. .hdpol = VPFE_PINPOL_POSITIVE,
  323. .vdpol = VPFE_PINPOL_POSITIVE,
  324. },
  325. .board_info = {
  326. I2C_BOARD_INFO("tvp5146", 0x5d),
  327. .platform_data = &tvp5146_pdata,
  328. },
  329. },
  330. };
  331. static struct vpfe_config vpfe_cfg = {
  332. .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
  333. .sub_devs = vpfe_sub_devs,
  334. .i2c_adapter_id = 1,
  335. .card_name = "DM365 EVM",
  336. .ccdc = "ISIF",
  337. };
  338. /* venc standards timings */
  339. static struct vpbe_enc_mode_info dm365evm_enc_std_timing[] = {
  340. {
  341. .name = "ntsc",
  342. .timings_type = VPBE_ENC_STD,
  343. .std_id = V4L2_STD_NTSC,
  344. .interlaced = 1,
  345. .xres = 720,
  346. .yres = 480,
  347. .aspect = {11, 10},
  348. .fps = {30000, 1001},
  349. .left_margin = 0x79,
  350. .upper_margin = 0x10,
  351. },
  352. {
  353. .name = "pal",
  354. .timings_type = VPBE_ENC_STD,
  355. .std_id = V4L2_STD_PAL,
  356. .interlaced = 1,
  357. .xres = 720,
  358. .yres = 576,
  359. .aspect = {54, 59},
  360. .fps = {25, 1},
  361. .left_margin = 0x7E,
  362. .upper_margin = 0x16,
  363. },
  364. };
  365. /* venc dv timings */
  366. static struct vpbe_enc_mode_info dm365evm_enc_preset_timing[] = {
  367. {
  368. .name = "480p59_94",
  369. .timings_type = VPBE_ENC_DV_TIMINGS,
  370. .dv_timings = V4L2_DV_BT_CEA_720X480P59_94,
  371. .interlaced = 0,
  372. .xres = 720,
  373. .yres = 480,
  374. .aspect = {1, 1},
  375. .fps = {5994, 100},
  376. .left_margin = 0x8F,
  377. .upper_margin = 0x2D,
  378. },
  379. {
  380. .name = "576p50",
  381. .timings_type = VPBE_ENC_DV_TIMINGS,
  382. .dv_timings = V4L2_DV_BT_CEA_720X576P50,
  383. .interlaced = 0,
  384. .xres = 720,
  385. .yres = 576,
  386. .aspect = {1, 1},
  387. .fps = {50, 1},
  388. .left_margin = 0x8C,
  389. .upper_margin = 0x36,
  390. },
  391. {
  392. .name = "720p60",
  393. .timings_type = VPBE_ENC_DV_TIMINGS,
  394. .dv_timings = V4L2_DV_BT_CEA_1280X720P60,
  395. .interlaced = 0,
  396. .xres = 1280,
  397. .yres = 720,
  398. .aspect = {1, 1},
  399. .fps = {60, 1},
  400. .left_margin = 0x117,
  401. .right_margin = 70,
  402. .upper_margin = 38,
  403. .lower_margin = 3,
  404. .hsync_len = 80,
  405. .vsync_len = 5,
  406. },
  407. {
  408. .name = "1080i60",
  409. .timings_type = VPBE_ENC_DV_TIMINGS,
  410. .dv_timings = V4L2_DV_BT_CEA_1920X1080I60,
  411. .interlaced = 1,
  412. .xres = 1920,
  413. .yres = 1080,
  414. .aspect = {1, 1},
  415. .fps = {30, 1},
  416. .left_margin = 0xc9,
  417. .right_margin = 80,
  418. .upper_margin = 30,
  419. .lower_margin = 3,
  420. .hsync_len = 88,
  421. .vsync_len = 5,
  422. },
  423. };
  424. #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
  425. /*
  426. * The outputs available from VPBE + ecnoders. Keep the
  427. * the order same as that of encoders. First those from venc followed by that
  428. * from encoders. Index in the output refers to index on a particular
  429. * encoder.Driver uses this index to pass it to encoder when it supports more
  430. * than one output. Application uses index of the array to set an output.
  431. */
  432. static struct vpbe_output dm365evm_vpbe_outputs[] = {
  433. {
  434. .output = {
  435. .index = 0,
  436. .name = "Composite",
  437. .type = V4L2_OUTPUT_TYPE_ANALOG,
  438. .std = VENC_STD_ALL,
  439. .capabilities = V4L2_OUT_CAP_STD,
  440. },
  441. .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME,
  442. .default_mode = "ntsc",
  443. .num_modes = ARRAY_SIZE(dm365evm_enc_std_timing),
  444. .modes = dm365evm_enc_std_timing,
  445. .if_params = V4L2_MBUS_FMT_FIXED,
  446. },
  447. {
  448. .output = {
  449. .index = 1,
  450. .name = "Component",
  451. .type = V4L2_OUTPUT_TYPE_ANALOG,
  452. .capabilities = V4L2_OUT_CAP_DV_TIMINGS,
  453. },
  454. .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME,
  455. .default_mode = "480p59_94",
  456. .num_modes = ARRAY_SIZE(dm365evm_enc_preset_timing),
  457. .modes = dm365evm_enc_preset_timing,
  458. .if_params = V4L2_MBUS_FMT_FIXED,
  459. },
  460. };
  461. /*
  462. * Amplifiers on the board
  463. */
  464. static struct ths7303_platform_data ths7303_pdata = {
  465. .ch_1 = 3,
  466. .ch_2 = 3,
  467. .ch_3 = 3,
  468. };
  469. static struct amp_config_info vpbe_amp = {
  470. .module_name = "ths7303",
  471. .is_i2c = 1,
  472. .board_info = {
  473. I2C_BOARD_INFO("ths7303", 0x2c),
  474. .platform_data = &ths7303_pdata,
  475. }
  476. };
  477. static struct vpbe_config dm365evm_display_cfg = {
  478. .module_name = "dm365-vpbe-display",
  479. .i2c_adapter_id = 1,
  480. .amp = &vpbe_amp,
  481. .osd = {
  482. .module_name = DM365_VPBE_OSD_SUBDEV_NAME,
  483. },
  484. .venc = {
  485. .module_name = DM365_VPBE_VENC_SUBDEV_NAME,
  486. },
  487. .num_outputs = ARRAY_SIZE(dm365evm_vpbe_outputs),
  488. .outputs = dm365evm_vpbe_outputs,
  489. };
  490. static void __init evm_init_i2c(void)
  491. {
  492. davinci_init_i2c(&i2c_pdata);
  493. i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
  494. }
  495. static struct platform_device *dm365_evm_nand_devices[] __initdata = {
  496. &davinci_nand_device,
  497. };
  498. static inline int have_leds(void)
  499. {
  500. #ifdef CONFIG_LEDS_CLASS
  501. return 1;
  502. #else
  503. return 0;
  504. #endif
  505. }
  506. struct cpld_led {
  507. struct led_classdev cdev;
  508. u8 mask;
  509. };
  510. static const struct {
  511. const char *name;
  512. const char *trigger;
  513. } cpld_leds[] = {
  514. { "dm365evm::ds2", },
  515. { "dm365evm::ds3", },
  516. { "dm365evm::ds4", },
  517. { "dm365evm::ds5", },
  518. { "dm365evm::ds6", "nand-disk", },
  519. { "dm365evm::ds7", "mmc1", },
  520. { "dm365evm::ds8", "mmc0", },
  521. { "dm365evm::ds9", "heartbeat", },
  522. };
  523. static void cpld_led_set(struct led_classdev *cdev, enum led_brightness b)
  524. {
  525. struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
  526. u8 reg = __raw_readb(cpld + CPLD_LEDS);
  527. if (b != LED_OFF)
  528. reg &= ~led->mask;
  529. else
  530. reg |= led->mask;
  531. __raw_writeb(reg, cpld + CPLD_LEDS);
  532. }
  533. static enum led_brightness cpld_led_get(struct led_classdev *cdev)
  534. {
  535. struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
  536. u8 reg = __raw_readb(cpld + CPLD_LEDS);
  537. return (reg & led->mask) ? LED_OFF : LED_FULL;
  538. }
  539. static int __init cpld_leds_init(void)
  540. {
  541. int i;
  542. if (!have_leds() || !cpld)
  543. return 0;
  544. /* setup LEDs */
  545. __raw_writeb(0xff, cpld + CPLD_LEDS);
  546. for (i = 0; i < ARRAY_SIZE(cpld_leds); i++) {
  547. struct cpld_led *led;
  548. led = kzalloc(sizeof(*led), GFP_KERNEL);
  549. if (!led)
  550. break;
  551. led->cdev.name = cpld_leds[i].name;
  552. led->cdev.brightness_set = cpld_led_set;
  553. led->cdev.brightness_get = cpld_led_get;
  554. led->cdev.default_trigger = cpld_leds[i].trigger;
  555. led->mask = BIT(i);
  556. if (led_classdev_register(NULL, &led->cdev) < 0) {
  557. kfree(led);
  558. break;
  559. }
  560. }
  561. return 0;
  562. }
  563. /* run after subsys_initcall() for LEDs */
  564. fs_initcall(cpld_leds_init);
  565. static void __init evm_init_cpld(void)
  566. {
  567. u8 mux, resets;
  568. const char *label;
  569. struct clk *aemif_clk;
  570. /* Make sure we can configure the CPLD through CS1. Then
  571. * leave it on for later access to MMC and LED registers.
  572. */
  573. aemif_clk = clk_get(NULL, "aemif");
  574. if (IS_ERR(aemif_clk))
  575. return;
  576. clk_prepare_enable(aemif_clk);
  577. if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
  578. "cpld") == NULL)
  579. goto fail;
  580. cpld = ioremap(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE);
  581. if (!cpld) {
  582. release_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE,
  583. SECTION_SIZE);
  584. fail:
  585. pr_err("ERROR: can't map CPLD\n");
  586. clk_disable_unprepare(aemif_clk);
  587. return;
  588. }
  589. /* External muxing for some signals */
  590. mux = 0;
  591. /* Read SW5 to set up NAND + keypad _or_ OneNAND (sync read).
  592. * NOTE: SW4 bus width setting must match!
  593. */
  594. if ((__raw_readb(cpld + CPLD_SWITCH) & BIT(5)) == 0) {
  595. /* external keypad mux */
  596. mux |= BIT(7);
  597. platform_add_devices(dm365_evm_nand_devices,
  598. ARRAY_SIZE(dm365_evm_nand_devices));
  599. } else {
  600. /* no OneNAND support yet */
  601. }
  602. /* Leave external chips in reset when unused. */
  603. resets = BIT(3) | BIT(2) | BIT(1) | BIT(0);
  604. /* Static video input config with SN74CBT16214 1-of-3 mux:
  605. * - port b1 == tvp7002 (mux lowbits == 1 or 6)
  606. * - port b2 == imager (mux lowbits == 2 or 7)
  607. * - port b3 == tvp5146 (mux lowbits == 5)
  608. *
  609. * Runtime switching could work too, with limitations.
  610. */
  611. if (have_imager()) {
  612. label = "HD imager";
  613. mux |= 2;
  614. /* externally mux MMC1/ENET/AIC33 to imager */
  615. mux |= BIT(6) | BIT(5) | BIT(3);
  616. } else {
  617. struct davinci_soc_info *soc_info = &davinci_soc_info;
  618. /* we can use MMC1 ... */
  619. dm365evm_mmc_configure();
  620. davinci_setup_mmc(1, &dm365evm_mmc_config);
  621. /* ... and ENET ... */
  622. dm365evm_emac_configure();
  623. soc_info->emac_pdata->phy_id = DM365_EVM_PHY_ID;
  624. resets &= ~BIT(3);
  625. /* ... and AIC33 */
  626. resets &= ~BIT(1);
  627. if (have_tvp7002()) {
  628. mux |= 1;
  629. resets &= ~BIT(2);
  630. label = "tvp7002 HD";
  631. } else {
  632. /* default to tvp5146 */
  633. mux |= 5;
  634. resets &= ~BIT(0);
  635. label = "tvp5146 SD";
  636. }
  637. }
  638. __raw_writeb(mux, cpld + CPLD_MUX);
  639. __raw_writeb(resets, cpld + CPLD_RESETS);
  640. pr_info("EVM: %s video input\n", label);
  641. /* REVISIT export switches: NTSC/PAL (SW5.6), EXTRA1 (SW5.2), etc */
  642. }
  643. static struct davinci_uart_config uart_config __initdata = {
  644. .enabled_uarts = (1 << 0),
  645. };
  646. static void __init dm365_evm_map_io(void)
  647. {
  648. dm365_init();
  649. }
  650. static struct spi_eeprom at25640 = {
  651. .byte_len = SZ_64K / 8,
  652. .name = "at25640",
  653. .page_size = 32,
  654. .flags = EE_ADDR2,
  655. };
  656. static struct spi_board_info dm365_evm_spi_info[] __initconst = {
  657. {
  658. .modalias = "at25",
  659. .platform_data = &at25640,
  660. .max_speed_hz = 10 * 1000 * 1000,
  661. .bus_num = 0,
  662. .chip_select = 0,
  663. .mode = SPI_MODE_0,
  664. },
  665. };
  666. static __init void dm365_evm_init(void)
  667. {
  668. evm_init_i2c();
  669. davinci_serial_init(&uart_config);
  670. dm365evm_emac_configure();
  671. dm365evm_mmc_configure();
  672. davinci_setup_mmc(0, &dm365evm_mmc_config);
  673. dm365_init_video(&vpfe_cfg, &dm365evm_display_cfg);
  674. /* maybe setup mmc1/etc ... _after_ mmc0 */
  675. evm_init_cpld();
  676. #ifdef CONFIG_SND_DM365_AIC3X_CODEC
  677. dm365_init_asp(&dm365_evm_snd_data);
  678. #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
  679. dm365_init_vc(&dm365_evm_snd_data);
  680. #endif
  681. dm365_init_rtc();
  682. dm365_init_ks(&dm365evm_ks_data);
  683. dm365_init_spi0(BIT(0), dm365_evm_spi_info,
  684. ARRAY_SIZE(dm365_evm_spi_info));
  685. }
  686. MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM")
  687. .atag_offset = 0x100,
  688. .map_io = dm365_evm_map_io,
  689. .init_irq = davinci_irq_init,
  690. .init_time = davinci_timer_init,
  691. .init_machine = dm365_evm_init,
  692. .init_late = davinci_init_late,
  693. .dma_zone_size = SZ_128M,
  694. .restart = davinci_restart,
  695. MACHINE_END