da850.c 30 KB

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  1. /*
  2. * TI DA850/OMAP-L138 chip specific setup
  3. *
  4. * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
  5. *
  6. * Derived from: arch/arm/mach-davinci/da830.c
  7. * Original Copyrights follow:
  8. *
  9. * 2009 (c) MontaVista Software, Inc. This file is licensed under
  10. * the terms of the GNU General Public License version 2. This program
  11. * is licensed "as is" without any warranty of any kind, whether express
  12. * or implied.
  13. */
  14. #include <linux/gpio.h>
  15. #include <linux/init.h>
  16. #include <linux/clk.h>
  17. #include <linux/platform_device.h>
  18. #include <linux/cpufreq.h>
  19. #include <linux/regulator/consumer.h>
  20. #include <asm/mach/map.h>
  21. #include <mach/psc.h>
  22. #include <mach/irqs.h>
  23. #include <mach/cputype.h>
  24. #include <mach/common.h>
  25. #include <mach/time.h>
  26. #include <mach/da8xx.h>
  27. #include <mach/cpufreq.h>
  28. #include <mach/pm.h>
  29. #include <mach/gpio-davinci.h>
  30. #include "clock.h"
  31. #include "mux.h"
  32. /* SoC specific clock flags */
  33. #define DA850_CLK_ASYNC3 BIT(16)
  34. #define DA850_PLL1_BASE 0x01e1a000
  35. #define DA850_TIMER64P2_BASE 0x01f0c000
  36. #define DA850_TIMER64P3_BASE 0x01f0d000
  37. #define DA850_REF_FREQ 24000000
  38. #define CFGCHIP3_ASYNC3_CLKSRC BIT(4)
  39. #define CFGCHIP3_PLL1_MASTER_LOCK BIT(5)
  40. #define CFGCHIP0_PLL_MASTER_LOCK BIT(4)
  41. static int da850_set_armrate(struct clk *clk, unsigned long rate);
  42. static int da850_round_armrate(struct clk *clk, unsigned long rate);
  43. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);
  44. static struct pll_data pll0_data = {
  45. .num = 1,
  46. .phys_base = DA8XX_PLL0_BASE,
  47. .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV,
  48. };
  49. static struct clk ref_clk = {
  50. .name = "ref_clk",
  51. .rate = DA850_REF_FREQ,
  52. .set_rate = davinci_simple_set_rate,
  53. };
  54. static struct clk pll0_clk = {
  55. .name = "pll0",
  56. .parent = &ref_clk,
  57. .pll_data = &pll0_data,
  58. .flags = CLK_PLL,
  59. .set_rate = da850_set_pll0rate,
  60. };
  61. static struct clk pll0_aux_clk = {
  62. .name = "pll0_aux_clk",
  63. .parent = &pll0_clk,
  64. .flags = CLK_PLL | PRE_PLL,
  65. };
  66. static struct clk pll0_sysclk2 = {
  67. .name = "pll0_sysclk2",
  68. .parent = &pll0_clk,
  69. .flags = CLK_PLL,
  70. .div_reg = PLLDIV2,
  71. };
  72. static struct clk pll0_sysclk3 = {
  73. .name = "pll0_sysclk3",
  74. .parent = &pll0_clk,
  75. .flags = CLK_PLL,
  76. .div_reg = PLLDIV3,
  77. .set_rate = davinci_set_sysclk_rate,
  78. .maxrate = 100000000,
  79. };
  80. static struct clk pll0_sysclk4 = {
  81. .name = "pll0_sysclk4",
  82. .parent = &pll0_clk,
  83. .flags = CLK_PLL,
  84. .div_reg = PLLDIV4,
  85. };
  86. static struct clk pll0_sysclk5 = {
  87. .name = "pll0_sysclk5",
  88. .parent = &pll0_clk,
  89. .flags = CLK_PLL,
  90. .div_reg = PLLDIV5,
  91. };
  92. static struct clk pll0_sysclk6 = {
  93. .name = "pll0_sysclk6",
  94. .parent = &pll0_clk,
  95. .flags = CLK_PLL,
  96. .div_reg = PLLDIV6,
  97. };
  98. static struct clk pll0_sysclk7 = {
  99. .name = "pll0_sysclk7",
  100. .parent = &pll0_clk,
  101. .flags = CLK_PLL,
  102. .div_reg = PLLDIV7,
  103. };
  104. static struct pll_data pll1_data = {
  105. .num = 2,
  106. .phys_base = DA850_PLL1_BASE,
  107. .flags = PLL_HAS_POSTDIV,
  108. };
  109. static struct clk pll1_clk = {
  110. .name = "pll1",
  111. .parent = &ref_clk,
  112. .pll_data = &pll1_data,
  113. .flags = CLK_PLL,
  114. };
  115. static struct clk pll1_aux_clk = {
  116. .name = "pll1_aux_clk",
  117. .parent = &pll1_clk,
  118. .flags = CLK_PLL | PRE_PLL,
  119. };
  120. static struct clk pll1_sysclk2 = {
  121. .name = "pll1_sysclk2",
  122. .parent = &pll1_clk,
  123. .flags = CLK_PLL,
  124. .div_reg = PLLDIV2,
  125. };
  126. static struct clk pll1_sysclk3 = {
  127. .name = "pll1_sysclk3",
  128. .parent = &pll1_clk,
  129. .flags = CLK_PLL,
  130. .div_reg = PLLDIV3,
  131. };
  132. static struct clk pll1_sysclk4 = {
  133. .name = "pll1_sysclk4",
  134. .parent = &pll1_clk,
  135. .flags = CLK_PLL,
  136. .div_reg = PLLDIV4,
  137. };
  138. static struct clk pll1_sysclk5 = {
  139. .name = "pll1_sysclk5",
  140. .parent = &pll1_clk,
  141. .flags = CLK_PLL,
  142. .div_reg = PLLDIV5,
  143. };
  144. static struct clk pll1_sysclk6 = {
  145. .name = "pll0_sysclk6",
  146. .parent = &pll0_clk,
  147. .flags = CLK_PLL,
  148. .div_reg = PLLDIV6,
  149. };
  150. static struct clk pll1_sysclk7 = {
  151. .name = "pll1_sysclk7",
  152. .parent = &pll1_clk,
  153. .flags = CLK_PLL,
  154. .div_reg = PLLDIV7,
  155. };
  156. static struct clk i2c0_clk = {
  157. .name = "i2c0",
  158. .parent = &pll0_aux_clk,
  159. };
  160. static struct clk timerp64_0_clk = {
  161. .name = "timer0",
  162. .parent = &pll0_aux_clk,
  163. };
  164. static struct clk timerp64_1_clk = {
  165. .name = "timer1",
  166. .parent = &pll0_aux_clk,
  167. };
  168. static struct clk arm_rom_clk = {
  169. .name = "arm_rom",
  170. .parent = &pll0_sysclk2,
  171. .lpsc = DA8XX_LPSC0_ARM_RAM_ROM,
  172. .flags = ALWAYS_ENABLED,
  173. };
  174. static struct clk tpcc0_clk = {
  175. .name = "tpcc0",
  176. .parent = &pll0_sysclk2,
  177. .lpsc = DA8XX_LPSC0_TPCC,
  178. .flags = ALWAYS_ENABLED | CLK_PSC,
  179. };
  180. static struct clk tptc0_clk = {
  181. .name = "tptc0",
  182. .parent = &pll0_sysclk2,
  183. .lpsc = DA8XX_LPSC0_TPTC0,
  184. .flags = ALWAYS_ENABLED,
  185. };
  186. static struct clk tptc1_clk = {
  187. .name = "tptc1",
  188. .parent = &pll0_sysclk2,
  189. .lpsc = DA8XX_LPSC0_TPTC1,
  190. .flags = ALWAYS_ENABLED,
  191. };
  192. static struct clk tpcc1_clk = {
  193. .name = "tpcc1",
  194. .parent = &pll0_sysclk2,
  195. .lpsc = DA850_LPSC1_TPCC1,
  196. .gpsc = 1,
  197. .flags = CLK_PSC | ALWAYS_ENABLED,
  198. };
  199. static struct clk tptc2_clk = {
  200. .name = "tptc2",
  201. .parent = &pll0_sysclk2,
  202. .lpsc = DA850_LPSC1_TPTC2,
  203. .gpsc = 1,
  204. .flags = ALWAYS_ENABLED,
  205. };
  206. static struct clk uart0_clk = {
  207. .name = "uart0",
  208. .parent = &pll0_sysclk2,
  209. .lpsc = DA8XX_LPSC0_UART0,
  210. };
  211. static struct clk uart1_clk = {
  212. .name = "uart1",
  213. .parent = &pll0_sysclk2,
  214. .lpsc = DA8XX_LPSC1_UART1,
  215. .gpsc = 1,
  216. .flags = DA850_CLK_ASYNC3,
  217. };
  218. static struct clk uart2_clk = {
  219. .name = "uart2",
  220. .parent = &pll0_sysclk2,
  221. .lpsc = DA8XX_LPSC1_UART2,
  222. .gpsc = 1,
  223. .flags = DA850_CLK_ASYNC3,
  224. };
  225. static struct clk aintc_clk = {
  226. .name = "aintc",
  227. .parent = &pll0_sysclk4,
  228. .lpsc = DA8XX_LPSC0_AINTC,
  229. .flags = ALWAYS_ENABLED,
  230. };
  231. static struct clk gpio_clk = {
  232. .name = "gpio",
  233. .parent = &pll0_sysclk4,
  234. .lpsc = DA8XX_LPSC1_GPIO,
  235. .gpsc = 1,
  236. };
  237. static struct clk i2c1_clk = {
  238. .name = "i2c1",
  239. .parent = &pll0_sysclk4,
  240. .lpsc = DA8XX_LPSC1_I2C,
  241. .gpsc = 1,
  242. };
  243. static struct clk emif3_clk = {
  244. .name = "emif3",
  245. .parent = &pll0_sysclk5,
  246. .lpsc = DA8XX_LPSC1_EMIF3C,
  247. .gpsc = 1,
  248. .flags = ALWAYS_ENABLED,
  249. };
  250. static struct clk arm_clk = {
  251. .name = "arm",
  252. .parent = &pll0_sysclk6,
  253. .lpsc = DA8XX_LPSC0_ARM,
  254. .flags = ALWAYS_ENABLED,
  255. .set_rate = da850_set_armrate,
  256. .round_rate = da850_round_armrate,
  257. };
  258. static struct clk rmii_clk = {
  259. .name = "rmii",
  260. .parent = &pll0_sysclk7,
  261. };
  262. static struct clk emac_clk = {
  263. .name = "emac",
  264. .parent = &pll0_sysclk4,
  265. .lpsc = DA8XX_LPSC1_CPGMAC,
  266. .gpsc = 1,
  267. };
  268. static struct clk mcasp_clk = {
  269. .name = "mcasp",
  270. .parent = &pll0_sysclk2,
  271. .lpsc = DA8XX_LPSC1_McASP0,
  272. .gpsc = 1,
  273. .flags = DA850_CLK_ASYNC3,
  274. };
  275. static struct clk lcdc_clk = {
  276. .name = "lcdc",
  277. .parent = &pll0_sysclk2,
  278. .lpsc = DA8XX_LPSC1_LCDC,
  279. .gpsc = 1,
  280. };
  281. static struct clk mmcsd0_clk = {
  282. .name = "mmcsd0",
  283. .parent = &pll0_sysclk2,
  284. .lpsc = DA8XX_LPSC0_MMC_SD,
  285. };
  286. static struct clk mmcsd1_clk = {
  287. .name = "mmcsd1",
  288. .parent = &pll0_sysclk2,
  289. .lpsc = DA850_LPSC1_MMC_SD1,
  290. .gpsc = 1,
  291. };
  292. static struct clk aemif_clk = {
  293. .name = "aemif",
  294. .parent = &pll0_sysclk3,
  295. .lpsc = DA8XX_LPSC0_EMIF25,
  296. .flags = ALWAYS_ENABLED,
  297. };
  298. static struct clk usb11_clk = {
  299. .name = "usb11",
  300. .parent = &pll0_sysclk4,
  301. .lpsc = DA8XX_LPSC1_USB11,
  302. .gpsc = 1,
  303. };
  304. static struct clk usb20_clk = {
  305. .name = "usb20",
  306. .parent = &pll0_sysclk2,
  307. .lpsc = DA8XX_LPSC1_USB20,
  308. .gpsc = 1,
  309. };
  310. static struct clk spi0_clk = {
  311. .name = "spi0",
  312. .parent = &pll0_sysclk2,
  313. .lpsc = DA8XX_LPSC0_SPI0,
  314. };
  315. static struct clk spi1_clk = {
  316. .name = "spi1",
  317. .parent = &pll0_sysclk2,
  318. .lpsc = DA8XX_LPSC1_SPI1,
  319. .gpsc = 1,
  320. .flags = DA850_CLK_ASYNC3,
  321. };
  322. static struct clk sata_clk = {
  323. .name = "sata",
  324. .parent = &pll0_sysclk2,
  325. .lpsc = DA850_LPSC1_SATA,
  326. .gpsc = 1,
  327. .flags = PSC_FORCE,
  328. };
  329. static struct clk_lookup da850_clks[] = {
  330. CLK(NULL, "ref", &ref_clk),
  331. CLK(NULL, "pll0", &pll0_clk),
  332. CLK(NULL, "pll0_aux", &pll0_aux_clk),
  333. CLK(NULL, "pll0_sysclk2", &pll0_sysclk2),
  334. CLK(NULL, "pll0_sysclk3", &pll0_sysclk3),
  335. CLK(NULL, "pll0_sysclk4", &pll0_sysclk4),
  336. CLK(NULL, "pll0_sysclk5", &pll0_sysclk5),
  337. CLK(NULL, "pll0_sysclk6", &pll0_sysclk6),
  338. CLK(NULL, "pll0_sysclk7", &pll0_sysclk7),
  339. CLK(NULL, "pll1", &pll1_clk),
  340. CLK(NULL, "pll1_aux", &pll1_aux_clk),
  341. CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
  342. CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
  343. CLK(NULL, "pll1_sysclk4", &pll1_sysclk4),
  344. CLK(NULL, "pll1_sysclk5", &pll1_sysclk5),
  345. CLK(NULL, "pll1_sysclk6", &pll1_sysclk6),
  346. CLK(NULL, "pll1_sysclk7", &pll1_sysclk7),
  347. CLK("i2c_davinci.1", NULL, &i2c0_clk),
  348. CLK(NULL, "timer0", &timerp64_0_clk),
  349. CLK("watchdog", NULL, &timerp64_1_clk),
  350. CLK(NULL, "arm_rom", &arm_rom_clk),
  351. CLK(NULL, "tpcc0", &tpcc0_clk),
  352. CLK(NULL, "tptc0", &tptc0_clk),
  353. CLK(NULL, "tptc1", &tptc1_clk),
  354. CLK(NULL, "tpcc1", &tpcc1_clk),
  355. CLK(NULL, "tptc2", &tptc2_clk),
  356. CLK(NULL, "uart0", &uart0_clk),
  357. CLK(NULL, "uart1", &uart1_clk),
  358. CLK(NULL, "uart2", &uart2_clk),
  359. CLK(NULL, "aintc", &aintc_clk),
  360. CLK(NULL, "gpio", &gpio_clk),
  361. CLK("i2c_davinci.2", NULL, &i2c1_clk),
  362. CLK(NULL, "emif3", &emif3_clk),
  363. CLK(NULL, "arm", &arm_clk),
  364. CLK(NULL, "rmii", &rmii_clk),
  365. CLK("davinci_emac.1", NULL, &emac_clk),
  366. CLK("davinci-mcasp.0", NULL, &mcasp_clk),
  367. CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
  368. CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
  369. CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
  370. CLK(NULL, "aemif", &aemif_clk),
  371. CLK(NULL, "usb11", &usb11_clk),
  372. CLK(NULL, "usb20", &usb20_clk),
  373. CLK("spi_davinci.0", NULL, &spi0_clk),
  374. CLK("spi_davinci.1", NULL, &spi1_clk),
  375. CLK("ahci", NULL, &sata_clk),
  376. CLK(NULL, NULL, NULL),
  377. };
  378. /*
  379. * Device specific mux setup
  380. *
  381. * soc description mux mode mode mux dbg
  382. * reg offset mask mode
  383. */
  384. static const struct mux_config da850_pins[] = {
  385. #ifdef CONFIG_DAVINCI_MUX
  386. /* UART0 function */
  387. MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false)
  388. MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false)
  389. MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false)
  390. MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false)
  391. /* UART1 function */
  392. MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false)
  393. MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false)
  394. /* UART2 function */
  395. MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false)
  396. MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false)
  397. /* I2C1 function */
  398. MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false)
  399. MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false)
  400. /* I2C0 function */
  401. MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false)
  402. MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false)
  403. /* EMAC function */
  404. MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false)
  405. MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false)
  406. MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false)
  407. MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false)
  408. MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false)
  409. MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false)
  410. MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false)
  411. MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false)
  412. MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false)
  413. MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false)
  414. MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false)
  415. MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false)
  416. MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false)
  417. MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false)
  418. MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
  419. MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
  420. MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
  421. MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false)
  422. MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false)
  423. MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false)
  424. MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false)
  425. MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false)
  426. MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false)
  427. MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false)
  428. MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false)
  429. /* McASP function */
  430. MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
  431. MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
  432. MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
  433. MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
  434. MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
  435. MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
  436. MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
  437. MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
  438. MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
  439. MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
  440. MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
  441. MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
  442. MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
  443. MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
  444. MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
  445. MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
  446. MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
  447. MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
  448. MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
  449. MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
  450. MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
  451. MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
  452. MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
  453. /* LCD function */
  454. MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
  455. MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
  456. MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
  457. MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
  458. MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
  459. MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
  460. MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
  461. MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
  462. MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
  463. MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
  464. MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
  465. MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
  466. MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
  467. MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
  468. MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
  469. MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
  470. MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
  471. MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
  472. MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
  473. MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
  474. /* MMC/SD0 function */
  475. MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
  476. MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
  477. MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
  478. MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
  479. MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
  480. MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
  481. /* MMC/SD1 function */
  482. MUX_CFG(DA850, MMCSD1_DAT_0, 18, 8, 15, 2, false)
  483. MUX_CFG(DA850, MMCSD1_DAT_1, 19, 16, 15, 2, false)
  484. MUX_CFG(DA850, MMCSD1_DAT_2, 19, 12, 15, 2, false)
  485. MUX_CFG(DA850, MMCSD1_DAT_3, 19, 8, 15, 2, false)
  486. MUX_CFG(DA850, MMCSD1_CLK, 18, 12, 15, 2, false)
  487. MUX_CFG(DA850, MMCSD1_CMD, 18, 16, 15, 2, false)
  488. /* EMIF2.5/EMIFA function */
  489. MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
  490. MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
  491. MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
  492. MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
  493. MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
  494. MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
  495. MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
  496. MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
  497. MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
  498. MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
  499. MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
  500. MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
  501. MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
  502. MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
  503. MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false)
  504. MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false)
  505. MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false)
  506. MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false)
  507. MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false)
  508. MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false)
  509. MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false)
  510. MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false)
  511. MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false)
  512. MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false)
  513. MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false)
  514. MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false)
  515. MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false)
  516. MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false)
  517. MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false)
  518. MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false)
  519. MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false)
  520. MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false)
  521. MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false)
  522. MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false)
  523. MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false)
  524. MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false)
  525. MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false)
  526. MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false)
  527. MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false)
  528. MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false)
  529. MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false)
  530. MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false)
  531. MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false)
  532. MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false)
  533. MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false)
  534. MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false)
  535. MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false)
  536. MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false)
  537. /* GPIO function */
  538. MUX_CFG(DA850, GPIO2_4, 6, 12, 15, 8, false)
  539. MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false)
  540. MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false)
  541. MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
  542. MUX_CFG(DA850, GPIO3_12, 7, 12, 15, 8, false)
  543. MUX_CFG(DA850, GPIO3_13, 7, 8, 15, 8, false)
  544. MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
  545. MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
  546. MUX_CFG(DA850, GPIO6_9, 13, 24, 15, 8, false)
  547. MUX_CFG(DA850, GPIO6_10, 13, 20, 15, 8, false)
  548. MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false)
  549. MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false)
  550. #endif
  551. };
  552. const short da850_i2c0_pins[] __initdata = {
  553. DA850_I2C0_SDA, DA850_I2C0_SCL,
  554. -1
  555. };
  556. const short da850_i2c1_pins[] __initdata = {
  557. DA850_I2C1_SCL, DA850_I2C1_SDA,
  558. -1
  559. };
  560. const short da850_lcdcntl_pins[] __initdata = {
  561. DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
  562. DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
  563. DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
  564. DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
  565. DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
  566. -1
  567. };
  568. /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
  569. static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
  570. [IRQ_DA8XX_COMMTX] = 7,
  571. [IRQ_DA8XX_COMMRX] = 7,
  572. [IRQ_DA8XX_NINT] = 7,
  573. [IRQ_DA8XX_EVTOUT0] = 7,
  574. [IRQ_DA8XX_EVTOUT1] = 7,
  575. [IRQ_DA8XX_EVTOUT2] = 7,
  576. [IRQ_DA8XX_EVTOUT3] = 7,
  577. [IRQ_DA8XX_EVTOUT4] = 7,
  578. [IRQ_DA8XX_EVTOUT5] = 7,
  579. [IRQ_DA8XX_EVTOUT6] = 7,
  580. [IRQ_DA8XX_EVTOUT7] = 7,
  581. [IRQ_DA8XX_CCINT0] = 7,
  582. [IRQ_DA8XX_CCERRINT] = 7,
  583. [IRQ_DA8XX_TCERRINT0] = 7,
  584. [IRQ_DA8XX_AEMIFINT] = 7,
  585. [IRQ_DA8XX_I2CINT0] = 7,
  586. [IRQ_DA8XX_MMCSDINT0] = 7,
  587. [IRQ_DA8XX_MMCSDINT1] = 7,
  588. [IRQ_DA8XX_ALLINT0] = 7,
  589. [IRQ_DA8XX_RTC] = 7,
  590. [IRQ_DA8XX_SPINT0] = 7,
  591. [IRQ_DA8XX_TINT12_0] = 7,
  592. [IRQ_DA8XX_TINT34_0] = 7,
  593. [IRQ_DA8XX_TINT12_1] = 7,
  594. [IRQ_DA8XX_TINT34_1] = 7,
  595. [IRQ_DA8XX_UARTINT0] = 7,
  596. [IRQ_DA8XX_KEYMGRINT] = 7,
  597. [IRQ_DA850_MPUADDRERR0] = 7,
  598. [IRQ_DA8XX_CHIPINT0] = 7,
  599. [IRQ_DA8XX_CHIPINT1] = 7,
  600. [IRQ_DA8XX_CHIPINT2] = 7,
  601. [IRQ_DA8XX_CHIPINT3] = 7,
  602. [IRQ_DA8XX_TCERRINT1] = 7,
  603. [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7,
  604. [IRQ_DA8XX_C0_RX_PULSE] = 7,
  605. [IRQ_DA8XX_C0_TX_PULSE] = 7,
  606. [IRQ_DA8XX_C0_MISC_PULSE] = 7,
  607. [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7,
  608. [IRQ_DA8XX_C1_RX_PULSE] = 7,
  609. [IRQ_DA8XX_C1_TX_PULSE] = 7,
  610. [IRQ_DA8XX_C1_MISC_PULSE] = 7,
  611. [IRQ_DA8XX_MEMERR] = 7,
  612. [IRQ_DA8XX_GPIO0] = 7,
  613. [IRQ_DA8XX_GPIO1] = 7,
  614. [IRQ_DA8XX_GPIO2] = 7,
  615. [IRQ_DA8XX_GPIO3] = 7,
  616. [IRQ_DA8XX_GPIO4] = 7,
  617. [IRQ_DA8XX_GPIO5] = 7,
  618. [IRQ_DA8XX_GPIO6] = 7,
  619. [IRQ_DA8XX_GPIO7] = 7,
  620. [IRQ_DA8XX_GPIO8] = 7,
  621. [IRQ_DA8XX_I2CINT1] = 7,
  622. [IRQ_DA8XX_LCDINT] = 7,
  623. [IRQ_DA8XX_UARTINT1] = 7,
  624. [IRQ_DA8XX_MCASPINT] = 7,
  625. [IRQ_DA8XX_ALLINT1] = 7,
  626. [IRQ_DA8XX_SPINT1] = 7,
  627. [IRQ_DA8XX_UHPI_INT1] = 7,
  628. [IRQ_DA8XX_USB_INT] = 7,
  629. [IRQ_DA8XX_IRQN] = 7,
  630. [IRQ_DA8XX_RWAKEUP] = 7,
  631. [IRQ_DA8XX_UARTINT2] = 7,
  632. [IRQ_DA8XX_DFTSSINT] = 7,
  633. [IRQ_DA8XX_EHRPWM0] = 7,
  634. [IRQ_DA8XX_EHRPWM0TZ] = 7,
  635. [IRQ_DA8XX_EHRPWM1] = 7,
  636. [IRQ_DA8XX_EHRPWM1TZ] = 7,
  637. [IRQ_DA850_SATAINT] = 7,
  638. [IRQ_DA850_TINTALL_2] = 7,
  639. [IRQ_DA8XX_ECAP0] = 7,
  640. [IRQ_DA8XX_ECAP1] = 7,
  641. [IRQ_DA8XX_ECAP2] = 7,
  642. [IRQ_DA850_MMCSDINT0_1] = 7,
  643. [IRQ_DA850_MMCSDINT1_1] = 7,
  644. [IRQ_DA850_T12CMPINT0_2] = 7,
  645. [IRQ_DA850_T12CMPINT1_2] = 7,
  646. [IRQ_DA850_T12CMPINT2_2] = 7,
  647. [IRQ_DA850_T12CMPINT3_2] = 7,
  648. [IRQ_DA850_T12CMPINT4_2] = 7,
  649. [IRQ_DA850_T12CMPINT5_2] = 7,
  650. [IRQ_DA850_T12CMPINT6_2] = 7,
  651. [IRQ_DA850_T12CMPINT7_2] = 7,
  652. [IRQ_DA850_T12CMPINT0_3] = 7,
  653. [IRQ_DA850_T12CMPINT1_3] = 7,
  654. [IRQ_DA850_T12CMPINT2_3] = 7,
  655. [IRQ_DA850_T12CMPINT3_3] = 7,
  656. [IRQ_DA850_T12CMPINT4_3] = 7,
  657. [IRQ_DA850_T12CMPINT5_3] = 7,
  658. [IRQ_DA850_T12CMPINT6_3] = 7,
  659. [IRQ_DA850_T12CMPINT7_3] = 7,
  660. [IRQ_DA850_RPIINT] = 7,
  661. [IRQ_DA850_VPIFINT] = 7,
  662. [IRQ_DA850_CCINT1] = 7,
  663. [IRQ_DA850_CCERRINT1] = 7,
  664. [IRQ_DA850_TCERRINT2] = 7,
  665. [IRQ_DA850_TINTALL_3] = 7,
  666. [IRQ_DA850_MCBSP0RINT] = 7,
  667. [IRQ_DA850_MCBSP0XINT] = 7,
  668. [IRQ_DA850_MCBSP1RINT] = 7,
  669. [IRQ_DA850_MCBSP1XINT] = 7,
  670. [IRQ_DA8XX_ARMCLKSTOPREQ] = 7,
  671. };
  672. static struct map_desc da850_io_desc[] = {
  673. {
  674. .virtual = IO_VIRT,
  675. .pfn = __phys_to_pfn(IO_PHYS),
  676. .length = IO_SIZE,
  677. .type = MT_DEVICE
  678. },
  679. {
  680. .virtual = DA8XX_CP_INTC_VIRT,
  681. .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE),
  682. .length = DA8XX_CP_INTC_SIZE,
  683. .type = MT_DEVICE
  684. },
  685. {
  686. .virtual = SRAM_VIRT,
  687. .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
  688. .length = SZ_8K,
  689. .type = MT_DEVICE
  690. },
  691. };
  692. static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
  693. /* Contents of JTAG ID register used to identify exact cpu type */
  694. static struct davinci_id da850_ids[] = {
  695. {
  696. .variant = 0x0,
  697. .part_no = 0xb7d1,
  698. .manufacturer = 0x017, /* 0x02f >> 1 */
  699. .cpu_id = DAVINCI_CPU_ID_DA850,
  700. .name = "da850/omap-l138",
  701. },
  702. {
  703. .variant = 0x1,
  704. .part_no = 0xb7d1,
  705. .manufacturer = 0x017, /* 0x02f >> 1 */
  706. .cpu_id = DAVINCI_CPU_ID_DA850,
  707. .name = "da850/omap-l138/am18x",
  708. },
  709. };
  710. static struct davinci_timer_instance da850_timer_instance[4] = {
  711. {
  712. .base = DA8XX_TIMER64P0_BASE,
  713. .bottom_irq = IRQ_DA8XX_TINT12_0,
  714. .top_irq = IRQ_DA8XX_TINT34_0,
  715. },
  716. {
  717. .base = DA8XX_TIMER64P1_BASE,
  718. .bottom_irq = IRQ_DA8XX_TINT12_1,
  719. .top_irq = IRQ_DA8XX_TINT34_1,
  720. },
  721. {
  722. .base = DA850_TIMER64P2_BASE,
  723. .bottom_irq = IRQ_DA850_TINT12_2,
  724. .top_irq = IRQ_DA850_TINT34_2,
  725. },
  726. {
  727. .base = DA850_TIMER64P3_BASE,
  728. .bottom_irq = IRQ_DA850_TINT12_3,
  729. .top_irq = IRQ_DA850_TINT34_3,
  730. },
  731. };
  732. /*
  733. * T0_BOT: Timer 0, bottom : Used for clock_event
  734. * T0_TOP: Timer 0, top : Used for clocksource
  735. * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
  736. */
  737. static struct davinci_timer_info da850_timer_info = {
  738. .timers = da850_timer_instance,
  739. .clockevent_id = T0_BOT,
  740. .clocksource_id = T0_TOP,
  741. };
  742. static void da850_set_async3_src(int pllnum)
  743. {
  744. struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
  745. struct clk_lookup *c;
  746. unsigned int v;
  747. int ret;
  748. for (c = da850_clks; c->clk; c++) {
  749. clk = c->clk;
  750. if (clk->flags & DA850_CLK_ASYNC3) {
  751. ret = clk_set_parent(clk, newparent);
  752. WARN(ret, "DA850: unable to re-parent clock %s",
  753. clk->name);
  754. }
  755. }
  756. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  757. if (pllnum)
  758. v |= CFGCHIP3_ASYNC3_CLKSRC;
  759. else
  760. v &= ~CFGCHIP3_ASYNC3_CLKSRC;
  761. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  762. }
  763. #ifdef CONFIG_CPU_FREQ
  764. /*
  765. * Notes:
  766. * According to the TRM, minimum PLLM results in maximum power savings.
  767. * The OPP definitions below should keep the PLLM as low as possible.
  768. *
  769. * The output of the PLLM must be between 300 to 600 MHz.
  770. */
  771. struct da850_opp {
  772. unsigned int freq; /* in KHz */
  773. unsigned int prediv;
  774. unsigned int mult;
  775. unsigned int postdiv;
  776. unsigned int cvdd_min; /* in uV */
  777. unsigned int cvdd_max; /* in uV */
  778. };
  779. static const struct da850_opp da850_opp_456 = {
  780. .freq = 456000,
  781. .prediv = 1,
  782. .mult = 19,
  783. .postdiv = 1,
  784. .cvdd_min = 1300000,
  785. .cvdd_max = 1350000,
  786. };
  787. static const struct da850_opp da850_opp_408 = {
  788. .freq = 408000,
  789. .prediv = 1,
  790. .mult = 17,
  791. .postdiv = 1,
  792. .cvdd_min = 1300000,
  793. .cvdd_max = 1350000,
  794. };
  795. static const struct da850_opp da850_opp_372 = {
  796. .freq = 372000,
  797. .prediv = 2,
  798. .mult = 31,
  799. .postdiv = 1,
  800. .cvdd_min = 1200000,
  801. .cvdd_max = 1320000,
  802. };
  803. static const struct da850_opp da850_opp_300 = {
  804. .freq = 300000,
  805. .prediv = 1,
  806. .mult = 25,
  807. .postdiv = 2,
  808. .cvdd_min = 1200000,
  809. .cvdd_max = 1320000,
  810. };
  811. static const struct da850_opp da850_opp_200 = {
  812. .freq = 200000,
  813. .prediv = 1,
  814. .mult = 25,
  815. .postdiv = 3,
  816. .cvdd_min = 1100000,
  817. .cvdd_max = 1160000,
  818. };
  819. static const struct da850_opp da850_opp_96 = {
  820. .freq = 96000,
  821. .prediv = 1,
  822. .mult = 20,
  823. .postdiv = 5,
  824. .cvdd_min = 1000000,
  825. .cvdd_max = 1050000,
  826. };
  827. #define OPP(freq) \
  828. { \
  829. .index = (unsigned int) &da850_opp_##freq, \
  830. .frequency = freq * 1000, \
  831. }
  832. static struct cpufreq_frequency_table da850_freq_table[] = {
  833. OPP(456),
  834. OPP(408),
  835. OPP(372),
  836. OPP(300),
  837. OPP(200),
  838. OPP(96),
  839. {
  840. .index = 0,
  841. .frequency = CPUFREQ_TABLE_END,
  842. },
  843. };
  844. #ifdef CONFIG_REGULATOR
  845. static int da850_set_voltage(unsigned int index);
  846. static int da850_regulator_init(void);
  847. #endif
  848. static struct davinci_cpufreq_config cpufreq_info = {
  849. .freq_table = da850_freq_table,
  850. #ifdef CONFIG_REGULATOR
  851. .init = da850_regulator_init,
  852. .set_voltage = da850_set_voltage,
  853. #endif
  854. };
  855. #ifdef CONFIG_REGULATOR
  856. static struct regulator *cvdd;
  857. static int da850_set_voltage(unsigned int index)
  858. {
  859. struct da850_opp *opp;
  860. if (!cvdd)
  861. return -ENODEV;
  862. opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
  863. return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
  864. }
  865. static int da850_regulator_init(void)
  866. {
  867. cvdd = regulator_get(NULL, "cvdd");
  868. if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
  869. " voltage scaling unsupported\n")) {
  870. return PTR_ERR(cvdd);
  871. }
  872. return 0;
  873. }
  874. #endif
  875. static struct platform_device da850_cpufreq_device = {
  876. .name = "cpufreq-davinci",
  877. .dev = {
  878. .platform_data = &cpufreq_info,
  879. },
  880. .id = -1,
  881. };
  882. unsigned int da850_max_speed = 300000;
  883. int __init da850_register_cpufreq(char *async_clk)
  884. {
  885. int i;
  886. /* cpufreq driver can help keep an "async" clock constant */
  887. if (async_clk)
  888. clk_add_alias("async", da850_cpufreq_device.name,
  889. async_clk, NULL);
  890. for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) {
  891. if (da850_freq_table[i].frequency <= da850_max_speed) {
  892. cpufreq_info.freq_table = &da850_freq_table[i];
  893. break;
  894. }
  895. }
  896. return platform_device_register(&da850_cpufreq_device);
  897. }
  898. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  899. {
  900. int i, ret = 0, diff;
  901. unsigned int best = (unsigned int) -1;
  902. struct cpufreq_frequency_table *table = cpufreq_info.freq_table;
  903. rate /= 1000; /* convert to kHz */
  904. for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
  905. diff = table[i].frequency - rate;
  906. if (diff < 0)
  907. diff = -diff;
  908. if (diff < best) {
  909. best = diff;
  910. ret = table[i].frequency;
  911. }
  912. }
  913. return ret * 1000;
  914. }
  915. static int da850_set_armrate(struct clk *clk, unsigned long index)
  916. {
  917. struct clk *pllclk = &pll0_clk;
  918. return clk_set_rate(pllclk, index);
  919. }
  920. static int da850_set_pll0rate(struct clk *clk, unsigned long index)
  921. {
  922. unsigned int prediv, mult, postdiv;
  923. struct da850_opp *opp;
  924. struct pll_data *pll = clk->pll_data;
  925. int ret;
  926. opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
  927. prediv = opp->prediv;
  928. mult = opp->mult;
  929. postdiv = opp->postdiv;
  930. ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
  931. if (WARN_ON(ret))
  932. return ret;
  933. return 0;
  934. }
  935. #else
  936. int __init da850_register_cpufreq(char *async_clk)
  937. {
  938. return 0;
  939. }
  940. static int da850_set_armrate(struct clk *clk, unsigned long rate)
  941. {
  942. return -EINVAL;
  943. }
  944. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
  945. {
  946. return -EINVAL;
  947. }
  948. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  949. {
  950. return clk->rate;
  951. }
  952. #endif
  953. int da850_register_pm(struct platform_device *pdev)
  954. {
  955. int ret;
  956. struct davinci_pm_config *pdata = pdev->dev.platform_data;
  957. ret = davinci_cfg_reg(DA850_RTC_ALARM);
  958. if (ret)
  959. return ret;
  960. pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
  961. pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
  962. pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C;
  963. pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
  964. if (!pdata->cpupll_reg_base)
  965. return -ENOMEM;
  966. pdata->ddrpll_reg_base = ioremap(DA850_PLL1_BASE, SZ_4K);
  967. if (!pdata->ddrpll_reg_base) {
  968. ret = -ENOMEM;
  969. goto no_ddrpll_mem;
  970. }
  971. pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
  972. if (!pdata->ddrpsc_reg_base) {
  973. ret = -ENOMEM;
  974. goto no_ddrpsc_mem;
  975. }
  976. return platform_device_register(pdev);
  977. no_ddrpsc_mem:
  978. iounmap(pdata->ddrpll_reg_base);
  979. no_ddrpll_mem:
  980. iounmap(pdata->cpupll_reg_base);
  981. return ret;
  982. }
  983. static struct davinci_soc_info davinci_soc_info_da850 = {
  984. .io_desc = da850_io_desc,
  985. .io_desc_num = ARRAY_SIZE(da850_io_desc),
  986. .jtag_id_reg = DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG,
  987. .ids = da850_ids,
  988. .ids_num = ARRAY_SIZE(da850_ids),
  989. .cpu_clks = da850_clks,
  990. .psc_bases = da850_psc_bases,
  991. .psc_bases_num = ARRAY_SIZE(da850_psc_bases),
  992. .pinmux_base = DA8XX_SYSCFG0_BASE + 0x120,
  993. .pinmux_pins = da850_pins,
  994. .pinmux_pins_num = ARRAY_SIZE(da850_pins),
  995. .intc_base = DA8XX_CP_INTC_BASE,
  996. .intc_type = DAVINCI_INTC_TYPE_CP_INTC,
  997. .intc_irq_prios = da850_default_priorities,
  998. .intc_irq_num = DA850_N_CP_INTC_IRQ,
  999. .timer_info = &da850_timer_info,
  1000. .gpio_type = GPIO_TYPE_DAVINCI,
  1001. .gpio_base = DA8XX_GPIO_BASE,
  1002. .gpio_num = 144,
  1003. .gpio_irq = IRQ_DA8XX_GPIO0,
  1004. .serial_dev = &da8xx_serial_device,
  1005. .emac_pdata = &da8xx_emac_pdata,
  1006. .sram_dma = DA8XX_ARM_RAM_BASE,
  1007. .sram_len = SZ_8K,
  1008. };
  1009. void __init da850_init(void)
  1010. {
  1011. unsigned int v;
  1012. davinci_common_init(&davinci_soc_info_da850);
  1013. da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
  1014. if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
  1015. return;
  1016. da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
  1017. if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
  1018. return;
  1019. /*
  1020. * Move the clock source of Async3 domain to PLL1 SYSCLK2.
  1021. * This helps keeping the peripherals on this domain insulated
  1022. * from CPU frequency changes caused by DVFS. The firmware sets
  1023. * both PLL0 and PLL1 to the same frequency so, there should not
  1024. * be any noticeable change even in non-DVFS use cases.
  1025. */
  1026. da850_set_async3_src(1);
  1027. /* Unlock writing to PLL0 registers */
  1028. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
  1029. v &= ~CFGCHIP0_PLL_MASTER_LOCK;
  1030. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
  1031. /* Unlock writing to PLL1 registers */
  1032. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  1033. v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
  1034. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  1035. }