board-dm365-evm.c 18 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784
  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/platform_data/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/i2c/ths7303.h>
  41. #include <media/i2c/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 i2c_board_info i2c_info[] = {
  159. {
  160. I2C_BOARD_INFO("24c256", 0x50),
  161. .platform_data = &eeprom_info,
  162. },
  163. {
  164. I2C_BOARD_INFO("tlv320aic3x", 0x18),
  165. },
  166. };
  167. static struct davinci_i2c_platform_data i2c_pdata = {
  168. .bus_freq = 400 /* kHz */,
  169. .bus_delay = 0 /* usec */,
  170. };
  171. static int dm365evm_keyscan_enable(struct device *dev)
  172. {
  173. return davinci_cfg_reg(DM365_KEYSCAN);
  174. }
  175. static unsigned short dm365evm_keymap[] = {
  176. KEY_KP2,
  177. KEY_LEFT,
  178. KEY_EXIT,
  179. KEY_DOWN,
  180. KEY_ENTER,
  181. KEY_UP,
  182. KEY_KP1,
  183. KEY_RIGHT,
  184. KEY_MENU,
  185. KEY_RECORD,
  186. KEY_REWIND,
  187. KEY_KPMINUS,
  188. KEY_STOP,
  189. KEY_FASTFORWARD,
  190. KEY_KPPLUS,
  191. KEY_PLAYPAUSE,
  192. 0
  193. };
  194. static struct davinci_ks_platform_data dm365evm_ks_data = {
  195. .device_enable = dm365evm_keyscan_enable,
  196. .keymap = dm365evm_keymap,
  197. .keymapsize = ARRAY_SIZE(dm365evm_keymap),
  198. .rep = 1,
  199. /* Scan period = strobe + interval */
  200. .strobe = 0x5,
  201. .interval = 0x2,
  202. .matrix_type = DAVINCI_KEYSCAN_MATRIX_4X4,
  203. };
  204. static int cpld_mmc_get_cd(int module)
  205. {
  206. if (!cpld)
  207. return -ENXIO;
  208. /* low == card present */
  209. return !(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 4 : 0));
  210. }
  211. static int cpld_mmc_get_ro(int module)
  212. {
  213. if (!cpld)
  214. return -ENXIO;
  215. /* high == card's write protect switch active */
  216. return !!(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 5 : 1));
  217. }
  218. static struct davinci_mmc_config dm365evm_mmc_config = {
  219. .get_cd = cpld_mmc_get_cd,
  220. .get_ro = cpld_mmc_get_ro,
  221. .wires = 4,
  222. .max_freq = 50000000,
  223. .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
  224. };
  225. static void dm365evm_emac_configure(void)
  226. {
  227. /*
  228. * EMAC pins are multiplexed with GPIO and UART
  229. * Further details are available at the DM365 ARM
  230. * Subsystem Users Guide(sprufg5.pdf) pages 125 - 127
  231. */
  232. davinci_cfg_reg(DM365_EMAC_TX_EN);
  233. davinci_cfg_reg(DM365_EMAC_TX_CLK);
  234. davinci_cfg_reg(DM365_EMAC_COL);
  235. davinci_cfg_reg(DM365_EMAC_TXD3);
  236. davinci_cfg_reg(DM365_EMAC_TXD2);
  237. davinci_cfg_reg(DM365_EMAC_TXD1);
  238. davinci_cfg_reg(DM365_EMAC_TXD0);
  239. davinci_cfg_reg(DM365_EMAC_RXD3);
  240. davinci_cfg_reg(DM365_EMAC_RXD2);
  241. davinci_cfg_reg(DM365_EMAC_RXD1);
  242. davinci_cfg_reg(DM365_EMAC_RXD0);
  243. davinci_cfg_reg(DM365_EMAC_RX_CLK);
  244. davinci_cfg_reg(DM365_EMAC_RX_DV);
  245. davinci_cfg_reg(DM365_EMAC_RX_ER);
  246. davinci_cfg_reg(DM365_EMAC_CRS);
  247. davinci_cfg_reg(DM365_EMAC_MDIO);
  248. davinci_cfg_reg(DM365_EMAC_MDCLK);
  249. /*
  250. * EMAC interrupts are multiplexed with GPIO interrupts
  251. * Details are available at the DM365 ARM
  252. * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134
  253. */
  254. davinci_cfg_reg(DM365_INT_EMAC_RXTHRESH);
  255. davinci_cfg_reg(DM365_INT_EMAC_RXPULSE);
  256. davinci_cfg_reg(DM365_INT_EMAC_TXPULSE);
  257. davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
  258. }
  259. static void dm365evm_mmc_configure(void)
  260. {
  261. /*
  262. * MMC/SD pins are multiplexed with GPIO and EMIF
  263. * Further details are available at the DM365 ARM
  264. * Subsystem Users Guide(sprufg5.pdf) pages 118, 128 - 131
  265. */
  266. davinci_cfg_reg(DM365_SD1_CLK);
  267. davinci_cfg_reg(DM365_SD1_CMD);
  268. davinci_cfg_reg(DM365_SD1_DATA3);
  269. davinci_cfg_reg(DM365_SD1_DATA2);
  270. davinci_cfg_reg(DM365_SD1_DATA1);
  271. davinci_cfg_reg(DM365_SD1_DATA0);
  272. }
  273. static struct tvp514x_platform_data tvp5146_pdata = {
  274. .clk_polarity = 0,
  275. .hs_polarity = 1,
  276. .vs_polarity = 1
  277. };
  278. #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
  279. /* Inputs available at the TVP5146 */
  280. static struct v4l2_input tvp5146_inputs[] = {
  281. {
  282. .index = 0,
  283. .name = "Composite",
  284. .type = V4L2_INPUT_TYPE_CAMERA,
  285. .std = TVP514X_STD_ALL,
  286. },
  287. {
  288. .index = 1,
  289. .name = "S-Video",
  290. .type = V4L2_INPUT_TYPE_CAMERA,
  291. .std = TVP514X_STD_ALL,
  292. },
  293. };
  294. /*
  295. * this is the route info for connecting each input to decoder
  296. * ouput that goes to vpfe. There is a one to one correspondence
  297. * with tvp5146_inputs
  298. */
  299. static struct vpfe_route tvp5146_routes[] = {
  300. {
  301. .input = INPUT_CVBS_VI2B,
  302. .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
  303. },
  304. {
  305. .input = INPUT_SVIDEO_VI2C_VI1C,
  306. .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
  307. },
  308. };
  309. static struct vpfe_subdev_info vpfe_sub_devs[] = {
  310. {
  311. .name = "tvp5146",
  312. .grp_id = 0,
  313. .num_inputs = ARRAY_SIZE(tvp5146_inputs),
  314. .inputs = tvp5146_inputs,
  315. .routes = tvp5146_routes,
  316. .can_route = 1,
  317. .ccdc_if_params = {
  318. .if_type = VPFE_BT656,
  319. .hdpol = VPFE_PINPOL_POSITIVE,
  320. .vdpol = VPFE_PINPOL_POSITIVE,
  321. },
  322. .board_info = {
  323. I2C_BOARD_INFO("tvp5146", 0x5d),
  324. .platform_data = &tvp5146_pdata,
  325. },
  326. },
  327. };
  328. static struct vpfe_config vpfe_cfg = {
  329. .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
  330. .sub_devs = vpfe_sub_devs,
  331. .i2c_adapter_id = 1,
  332. .card_name = "DM365 EVM",
  333. .ccdc = "ISIF",
  334. };
  335. /* venc standards timings */
  336. static struct vpbe_enc_mode_info dm365evm_enc_std_timing[] = {
  337. {
  338. .name = "ntsc",
  339. .timings_type = VPBE_ENC_STD,
  340. .std_id = V4L2_STD_NTSC,
  341. .interlaced = 1,
  342. .xres = 720,
  343. .yres = 480,
  344. .aspect = {11, 10},
  345. .fps = {30000, 1001},
  346. .left_margin = 0x79,
  347. .upper_margin = 0x10,
  348. },
  349. {
  350. .name = "pal",
  351. .timings_type = VPBE_ENC_STD,
  352. .std_id = V4L2_STD_PAL,
  353. .interlaced = 1,
  354. .xres = 720,
  355. .yres = 576,
  356. .aspect = {54, 59},
  357. .fps = {25, 1},
  358. .left_margin = 0x7E,
  359. .upper_margin = 0x16,
  360. },
  361. };
  362. /* venc dv timings */
  363. static struct vpbe_enc_mode_info dm365evm_enc_preset_timing[] = {
  364. {
  365. .name = "480p59_94",
  366. .timings_type = VPBE_ENC_DV_TIMINGS,
  367. .dv_timings = V4L2_DV_BT_CEA_720X480P59_94,
  368. .interlaced = 0,
  369. .xres = 720,
  370. .yres = 480,
  371. .aspect = {1, 1},
  372. .fps = {5994, 100},
  373. .left_margin = 0x8F,
  374. .upper_margin = 0x2D,
  375. },
  376. {
  377. .name = "576p50",
  378. .timings_type = VPBE_ENC_DV_TIMINGS,
  379. .dv_timings = V4L2_DV_BT_CEA_720X576P50,
  380. .interlaced = 0,
  381. .xres = 720,
  382. .yres = 576,
  383. .aspect = {1, 1},
  384. .fps = {50, 1},
  385. .left_margin = 0x8C,
  386. .upper_margin = 0x36,
  387. },
  388. {
  389. .name = "720p60",
  390. .timings_type = VPBE_ENC_DV_TIMINGS,
  391. .dv_timings = V4L2_DV_BT_CEA_1280X720P60,
  392. .interlaced = 0,
  393. .xres = 1280,
  394. .yres = 720,
  395. .aspect = {1, 1},
  396. .fps = {60, 1},
  397. .left_margin = 0x117,
  398. .right_margin = 70,
  399. .upper_margin = 38,
  400. .lower_margin = 3,
  401. .hsync_len = 80,
  402. .vsync_len = 5,
  403. },
  404. {
  405. .name = "1080i60",
  406. .timings_type = VPBE_ENC_DV_TIMINGS,
  407. .dv_timings = V4L2_DV_BT_CEA_1920X1080I60,
  408. .interlaced = 1,
  409. .xres = 1920,
  410. .yres = 1080,
  411. .aspect = {1, 1},
  412. .fps = {30, 1},
  413. .left_margin = 0xc9,
  414. .right_margin = 80,
  415. .upper_margin = 30,
  416. .lower_margin = 3,
  417. .hsync_len = 88,
  418. .vsync_len = 5,
  419. },
  420. };
  421. #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
  422. /*
  423. * The outputs available from VPBE + ecnoders. Keep the
  424. * the order same as that of encoders. First those from venc followed by that
  425. * from encoders. Index in the output refers to index on a particular
  426. * encoder.Driver uses this index to pass it to encoder when it supports more
  427. * than one output. Application uses index of the array to set an output.
  428. */
  429. static struct vpbe_output dm365evm_vpbe_outputs[] = {
  430. {
  431. .output = {
  432. .index = 0,
  433. .name = "Composite",
  434. .type = V4L2_OUTPUT_TYPE_ANALOG,
  435. .std = VENC_STD_ALL,
  436. .capabilities = V4L2_OUT_CAP_STD,
  437. },
  438. .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME,
  439. .default_mode = "ntsc",
  440. .num_modes = ARRAY_SIZE(dm365evm_enc_std_timing),
  441. .modes = dm365evm_enc_std_timing,
  442. .if_params = MEDIA_BUS_FMT_FIXED,
  443. },
  444. {
  445. .output = {
  446. .index = 1,
  447. .name = "Component",
  448. .type = V4L2_OUTPUT_TYPE_ANALOG,
  449. .capabilities = V4L2_OUT_CAP_DV_TIMINGS,
  450. },
  451. .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME,
  452. .default_mode = "480p59_94",
  453. .num_modes = ARRAY_SIZE(dm365evm_enc_preset_timing),
  454. .modes = dm365evm_enc_preset_timing,
  455. .if_params = MEDIA_BUS_FMT_FIXED,
  456. },
  457. };
  458. /*
  459. * Amplifiers on the board
  460. */
  461. static struct ths7303_platform_data ths7303_pdata = {
  462. .ch_1 = 3,
  463. .ch_2 = 3,
  464. .ch_3 = 3,
  465. };
  466. static struct amp_config_info vpbe_amp = {
  467. .module_name = "ths7303",
  468. .is_i2c = 1,
  469. .board_info = {
  470. I2C_BOARD_INFO("ths7303", 0x2c),
  471. .platform_data = &ths7303_pdata,
  472. }
  473. };
  474. static struct vpbe_config dm365evm_display_cfg = {
  475. .module_name = "dm365-vpbe-display",
  476. .i2c_adapter_id = 1,
  477. .amp = &vpbe_amp,
  478. .osd = {
  479. .module_name = DM365_VPBE_OSD_SUBDEV_NAME,
  480. },
  481. .venc = {
  482. .module_name = DM365_VPBE_VENC_SUBDEV_NAME,
  483. },
  484. .num_outputs = ARRAY_SIZE(dm365evm_vpbe_outputs),
  485. .outputs = dm365evm_vpbe_outputs,
  486. };
  487. static void __init evm_init_i2c(void)
  488. {
  489. davinci_init_i2c(&i2c_pdata);
  490. i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
  491. }
  492. static struct platform_device *dm365_evm_nand_devices[] __initdata = {
  493. &davinci_nand_device,
  494. };
  495. static inline int have_leds(void)
  496. {
  497. #ifdef CONFIG_LEDS_CLASS
  498. return 1;
  499. #else
  500. return 0;
  501. #endif
  502. }
  503. struct cpld_led {
  504. struct led_classdev cdev;
  505. u8 mask;
  506. };
  507. static const struct {
  508. const char *name;
  509. const char *trigger;
  510. } cpld_leds[] = {
  511. { "dm365evm::ds2", },
  512. { "dm365evm::ds3", },
  513. { "dm365evm::ds4", },
  514. { "dm365evm::ds5", },
  515. { "dm365evm::ds6", "nand-disk", },
  516. { "dm365evm::ds7", "mmc1", },
  517. { "dm365evm::ds8", "mmc0", },
  518. { "dm365evm::ds9", "heartbeat", },
  519. };
  520. static void cpld_led_set(struct led_classdev *cdev, enum led_brightness b)
  521. {
  522. struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
  523. u8 reg = __raw_readb(cpld + CPLD_LEDS);
  524. if (b != LED_OFF)
  525. reg &= ~led->mask;
  526. else
  527. reg |= led->mask;
  528. __raw_writeb(reg, cpld + CPLD_LEDS);
  529. }
  530. static enum led_brightness cpld_led_get(struct led_classdev *cdev)
  531. {
  532. struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
  533. u8 reg = __raw_readb(cpld + CPLD_LEDS);
  534. return (reg & led->mask) ? LED_OFF : LED_FULL;
  535. }
  536. static int __init cpld_leds_init(void)
  537. {
  538. int i;
  539. if (!have_leds() || !cpld)
  540. return 0;
  541. /* setup LEDs */
  542. __raw_writeb(0xff, cpld + CPLD_LEDS);
  543. for (i = 0; i < ARRAY_SIZE(cpld_leds); i++) {
  544. struct cpld_led *led;
  545. led = kzalloc(sizeof(*led), GFP_KERNEL);
  546. if (!led)
  547. break;
  548. led->cdev.name = cpld_leds[i].name;
  549. led->cdev.brightness_set = cpld_led_set;
  550. led->cdev.brightness_get = cpld_led_get;
  551. led->cdev.default_trigger = cpld_leds[i].trigger;
  552. led->mask = BIT(i);
  553. if (led_classdev_register(NULL, &led->cdev) < 0) {
  554. kfree(led);
  555. break;
  556. }
  557. }
  558. return 0;
  559. }
  560. /* run after subsys_initcall() for LEDs */
  561. fs_initcall(cpld_leds_init);
  562. static void __init evm_init_cpld(void)
  563. {
  564. u8 mux, resets;
  565. const char *label;
  566. struct clk *aemif_clk;
  567. /* Make sure we can configure the CPLD through CS1. Then
  568. * leave it on for later access to MMC and LED registers.
  569. */
  570. aemif_clk = clk_get(NULL, "aemif");
  571. if (IS_ERR(aemif_clk))
  572. return;
  573. clk_prepare_enable(aemif_clk);
  574. if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
  575. "cpld") == NULL)
  576. goto fail;
  577. cpld = ioremap(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE);
  578. if (!cpld) {
  579. release_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE,
  580. SECTION_SIZE);
  581. fail:
  582. pr_err("ERROR: can't map CPLD\n");
  583. clk_disable_unprepare(aemif_clk);
  584. return;
  585. }
  586. /* External muxing for some signals */
  587. mux = 0;
  588. /* Read SW5 to set up NAND + keypad _or_ OneNAND (sync read).
  589. * NOTE: SW4 bus width setting must match!
  590. */
  591. if ((__raw_readb(cpld + CPLD_SWITCH) & BIT(5)) == 0) {
  592. /* external keypad mux */
  593. mux |= BIT(7);
  594. platform_add_devices(dm365_evm_nand_devices,
  595. ARRAY_SIZE(dm365_evm_nand_devices));
  596. } else {
  597. /* no OneNAND support yet */
  598. }
  599. /* Leave external chips in reset when unused. */
  600. resets = BIT(3) | BIT(2) | BIT(1) | BIT(0);
  601. /* Static video input config with SN74CBT16214 1-of-3 mux:
  602. * - port b1 == tvp7002 (mux lowbits == 1 or 6)
  603. * - port b2 == imager (mux lowbits == 2 or 7)
  604. * - port b3 == tvp5146 (mux lowbits == 5)
  605. *
  606. * Runtime switching could work too, with limitations.
  607. */
  608. if (have_imager()) {
  609. label = "HD imager";
  610. mux |= 2;
  611. /* externally mux MMC1/ENET/AIC33 to imager */
  612. mux |= BIT(6) | BIT(5) | BIT(3);
  613. } else {
  614. struct davinci_soc_info *soc_info = &davinci_soc_info;
  615. /* we can use MMC1 ... */
  616. dm365evm_mmc_configure();
  617. davinci_setup_mmc(1, &dm365evm_mmc_config);
  618. /* ... and ENET ... */
  619. dm365evm_emac_configure();
  620. soc_info->emac_pdata->phy_id = DM365_EVM_PHY_ID;
  621. resets &= ~BIT(3);
  622. /* ... and AIC33 */
  623. resets &= ~BIT(1);
  624. if (have_tvp7002()) {
  625. mux |= 1;
  626. resets &= ~BIT(2);
  627. label = "tvp7002 HD";
  628. } else {
  629. /* default to tvp5146 */
  630. mux |= 5;
  631. resets &= ~BIT(0);
  632. label = "tvp5146 SD";
  633. }
  634. }
  635. __raw_writeb(mux, cpld + CPLD_MUX);
  636. __raw_writeb(resets, cpld + CPLD_RESETS);
  637. pr_info("EVM: %s video input\n", label);
  638. /* REVISIT export switches: NTSC/PAL (SW5.6), EXTRA1 (SW5.2), etc */
  639. }
  640. static void __init dm365_evm_map_io(void)
  641. {
  642. dm365_init();
  643. }
  644. static struct spi_eeprom at25640 = {
  645. .byte_len = SZ_64K / 8,
  646. .name = "at25640",
  647. .page_size = 32,
  648. .flags = EE_ADDR2,
  649. };
  650. static struct spi_board_info dm365_evm_spi_info[] __initconst = {
  651. {
  652. .modalias = "at25",
  653. .platform_data = &at25640,
  654. .max_speed_hz = 10 * 1000 * 1000,
  655. .bus_num = 0,
  656. .chip_select = 0,
  657. .mode = SPI_MODE_0,
  658. },
  659. };
  660. static __init void dm365_evm_init(void)
  661. {
  662. int ret;
  663. ret = dm365_gpio_register();
  664. if (ret)
  665. pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
  666. evm_init_i2c();
  667. davinci_serial_init(dm365_serial_device);
  668. dm365evm_emac_configure();
  669. dm365evm_mmc_configure();
  670. davinci_setup_mmc(0, &dm365evm_mmc_config);
  671. dm365_init_video(&vpfe_cfg, &dm365evm_display_cfg);
  672. /* maybe setup mmc1/etc ... _after_ mmc0 */
  673. evm_init_cpld();
  674. #ifdef CONFIG_SND_DM365_AIC3X_CODEC
  675. dm365_init_asp();
  676. #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
  677. dm365_init_vc();
  678. #endif
  679. dm365_init_rtc();
  680. dm365_init_ks(&dm365evm_ks_data);
  681. dm365_init_spi0(BIT(0), dm365_evm_spi_info,
  682. ARRAY_SIZE(dm365_evm_spi_info));
  683. }
  684. MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM")
  685. .atag_offset = 0x100,
  686. .map_io = dm365_evm_map_io,
  687. .init_irq = davinci_irq_init,
  688. .init_time = davinci_timer_init,
  689. .init_machine = dm365_evm_init,
  690. .init_late = davinci_init_late,
  691. .dma_zone_size = SZ_128M,
  692. .restart = davinci_restart,
  693. MACHINE_END