da850.c 29 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126
  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 i2c0_clk = {
  133. .name = "i2c0",
  134. .parent = &pll0_aux_clk,
  135. };
  136. static struct clk timerp64_0_clk = {
  137. .name = "timer0",
  138. .parent = &pll0_aux_clk,
  139. };
  140. static struct clk timerp64_1_clk = {
  141. .name = "timer1",
  142. .parent = &pll0_aux_clk,
  143. };
  144. static struct clk arm_rom_clk = {
  145. .name = "arm_rom",
  146. .parent = &pll0_sysclk2,
  147. .lpsc = DA8XX_LPSC0_ARM_RAM_ROM,
  148. .flags = ALWAYS_ENABLED,
  149. };
  150. static struct clk tpcc0_clk = {
  151. .name = "tpcc0",
  152. .parent = &pll0_sysclk2,
  153. .lpsc = DA8XX_LPSC0_TPCC,
  154. .flags = ALWAYS_ENABLED | CLK_PSC,
  155. };
  156. static struct clk tptc0_clk = {
  157. .name = "tptc0",
  158. .parent = &pll0_sysclk2,
  159. .lpsc = DA8XX_LPSC0_TPTC0,
  160. .flags = ALWAYS_ENABLED,
  161. };
  162. static struct clk tptc1_clk = {
  163. .name = "tptc1",
  164. .parent = &pll0_sysclk2,
  165. .lpsc = DA8XX_LPSC0_TPTC1,
  166. .flags = ALWAYS_ENABLED,
  167. };
  168. static struct clk tpcc1_clk = {
  169. .name = "tpcc1",
  170. .parent = &pll0_sysclk2,
  171. .lpsc = DA850_LPSC1_TPCC1,
  172. .gpsc = 1,
  173. .flags = CLK_PSC | ALWAYS_ENABLED,
  174. };
  175. static struct clk tptc2_clk = {
  176. .name = "tptc2",
  177. .parent = &pll0_sysclk2,
  178. .lpsc = DA850_LPSC1_TPTC2,
  179. .gpsc = 1,
  180. .flags = ALWAYS_ENABLED,
  181. };
  182. static struct clk uart0_clk = {
  183. .name = "uart0",
  184. .parent = &pll0_sysclk2,
  185. .lpsc = DA8XX_LPSC0_UART0,
  186. };
  187. static struct clk uart1_clk = {
  188. .name = "uart1",
  189. .parent = &pll0_sysclk2,
  190. .lpsc = DA8XX_LPSC1_UART1,
  191. .gpsc = 1,
  192. .flags = DA850_CLK_ASYNC3,
  193. };
  194. static struct clk uart2_clk = {
  195. .name = "uart2",
  196. .parent = &pll0_sysclk2,
  197. .lpsc = DA8XX_LPSC1_UART2,
  198. .gpsc = 1,
  199. .flags = DA850_CLK_ASYNC3,
  200. };
  201. static struct clk aintc_clk = {
  202. .name = "aintc",
  203. .parent = &pll0_sysclk4,
  204. .lpsc = DA8XX_LPSC0_AINTC,
  205. .flags = ALWAYS_ENABLED,
  206. };
  207. static struct clk gpio_clk = {
  208. .name = "gpio",
  209. .parent = &pll0_sysclk4,
  210. .lpsc = DA8XX_LPSC1_GPIO,
  211. .gpsc = 1,
  212. };
  213. static struct clk i2c1_clk = {
  214. .name = "i2c1",
  215. .parent = &pll0_sysclk4,
  216. .lpsc = DA8XX_LPSC1_I2C,
  217. .gpsc = 1,
  218. };
  219. static struct clk emif3_clk = {
  220. .name = "emif3",
  221. .parent = &pll0_sysclk5,
  222. .lpsc = DA8XX_LPSC1_EMIF3C,
  223. .gpsc = 1,
  224. .flags = ALWAYS_ENABLED,
  225. };
  226. static struct clk arm_clk = {
  227. .name = "arm",
  228. .parent = &pll0_sysclk6,
  229. .lpsc = DA8XX_LPSC0_ARM,
  230. .flags = ALWAYS_ENABLED,
  231. .set_rate = da850_set_armrate,
  232. .round_rate = da850_round_armrate,
  233. };
  234. static struct clk rmii_clk = {
  235. .name = "rmii",
  236. .parent = &pll0_sysclk7,
  237. };
  238. static struct clk emac_clk = {
  239. .name = "emac",
  240. .parent = &pll0_sysclk4,
  241. .lpsc = DA8XX_LPSC1_CPGMAC,
  242. .gpsc = 1,
  243. };
  244. static struct clk mcasp_clk = {
  245. .name = "mcasp",
  246. .parent = &pll0_sysclk2,
  247. .lpsc = DA8XX_LPSC1_McASP0,
  248. .gpsc = 1,
  249. .flags = DA850_CLK_ASYNC3,
  250. };
  251. static struct clk lcdc_clk = {
  252. .name = "lcdc",
  253. .parent = &pll0_sysclk2,
  254. .lpsc = DA8XX_LPSC1_LCDC,
  255. .gpsc = 1,
  256. };
  257. static struct clk mmcsd0_clk = {
  258. .name = "mmcsd0",
  259. .parent = &pll0_sysclk2,
  260. .lpsc = DA8XX_LPSC0_MMC_SD,
  261. };
  262. static struct clk mmcsd1_clk = {
  263. .name = "mmcsd1",
  264. .parent = &pll0_sysclk2,
  265. .lpsc = DA850_LPSC1_MMC_SD1,
  266. .gpsc = 1,
  267. };
  268. static struct clk aemif_clk = {
  269. .name = "aemif",
  270. .parent = &pll0_sysclk3,
  271. .lpsc = DA8XX_LPSC0_EMIF25,
  272. .flags = ALWAYS_ENABLED,
  273. };
  274. static struct clk usb11_clk = {
  275. .name = "usb11",
  276. .parent = &pll0_sysclk4,
  277. .lpsc = DA8XX_LPSC1_USB11,
  278. .gpsc = 1,
  279. };
  280. static struct clk usb20_clk = {
  281. .name = "usb20",
  282. .parent = &pll0_sysclk2,
  283. .lpsc = DA8XX_LPSC1_USB20,
  284. .gpsc = 1,
  285. };
  286. static struct clk spi0_clk = {
  287. .name = "spi0",
  288. .parent = &pll0_sysclk2,
  289. .lpsc = DA8XX_LPSC0_SPI0,
  290. };
  291. static struct clk spi1_clk = {
  292. .name = "spi1",
  293. .parent = &pll0_sysclk2,
  294. .lpsc = DA8XX_LPSC1_SPI1,
  295. .gpsc = 1,
  296. .flags = DA850_CLK_ASYNC3,
  297. };
  298. static struct clk sata_clk = {
  299. .name = "sata",
  300. .parent = &pll0_sysclk2,
  301. .lpsc = DA850_LPSC1_SATA,
  302. .gpsc = 1,
  303. .flags = PSC_FORCE,
  304. };
  305. static struct clk_lookup da850_clks[] = {
  306. CLK(NULL, "ref", &ref_clk),
  307. CLK(NULL, "pll0", &pll0_clk),
  308. CLK(NULL, "pll0_aux", &pll0_aux_clk),
  309. CLK(NULL, "pll0_sysclk2", &pll0_sysclk2),
  310. CLK(NULL, "pll0_sysclk3", &pll0_sysclk3),
  311. CLK(NULL, "pll0_sysclk4", &pll0_sysclk4),
  312. CLK(NULL, "pll0_sysclk5", &pll0_sysclk5),
  313. CLK(NULL, "pll0_sysclk6", &pll0_sysclk6),
  314. CLK(NULL, "pll0_sysclk7", &pll0_sysclk7),
  315. CLK(NULL, "pll1", &pll1_clk),
  316. CLK(NULL, "pll1_aux", &pll1_aux_clk),
  317. CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
  318. CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
  319. CLK("i2c_davinci.1", NULL, &i2c0_clk),
  320. CLK(NULL, "timer0", &timerp64_0_clk),
  321. CLK("watchdog", NULL, &timerp64_1_clk),
  322. CLK(NULL, "arm_rom", &arm_rom_clk),
  323. CLK(NULL, "tpcc0", &tpcc0_clk),
  324. CLK(NULL, "tptc0", &tptc0_clk),
  325. CLK(NULL, "tptc1", &tptc1_clk),
  326. CLK(NULL, "tpcc1", &tpcc1_clk),
  327. CLK(NULL, "tptc2", &tptc2_clk),
  328. CLK(NULL, "uart0", &uart0_clk),
  329. CLK(NULL, "uart1", &uart1_clk),
  330. CLK(NULL, "uart2", &uart2_clk),
  331. CLK(NULL, "aintc", &aintc_clk),
  332. CLK(NULL, "gpio", &gpio_clk),
  333. CLK("i2c_davinci.2", NULL, &i2c1_clk),
  334. CLK(NULL, "emif3", &emif3_clk),
  335. CLK(NULL, "arm", &arm_clk),
  336. CLK(NULL, "rmii", &rmii_clk),
  337. CLK("davinci_emac.1", NULL, &emac_clk),
  338. CLK("davinci-mcasp.0", NULL, &mcasp_clk),
  339. CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
  340. CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
  341. CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
  342. CLK(NULL, "aemif", &aemif_clk),
  343. CLK(NULL, "usb11", &usb11_clk),
  344. CLK(NULL, "usb20", &usb20_clk),
  345. CLK("spi_davinci.0", NULL, &spi0_clk),
  346. CLK("spi_davinci.1", NULL, &spi1_clk),
  347. CLK("ahci", NULL, &sata_clk),
  348. CLK(NULL, NULL, NULL),
  349. };
  350. /*
  351. * Device specific mux setup
  352. *
  353. * soc description mux mode mode mux dbg
  354. * reg offset mask mode
  355. */
  356. static const struct mux_config da850_pins[] = {
  357. #ifdef CONFIG_DAVINCI_MUX
  358. /* UART0 function */
  359. MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false)
  360. MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false)
  361. MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false)
  362. MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false)
  363. /* UART1 function */
  364. MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false)
  365. MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false)
  366. /* UART2 function */
  367. MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false)
  368. MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false)
  369. /* I2C1 function */
  370. MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false)
  371. MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false)
  372. /* I2C0 function */
  373. MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false)
  374. MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false)
  375. /* EMAC function */
  376. MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false)
  377. MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false)
  378. MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false)
  379. MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false)
  380. MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false)
  381. MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false)
  382. MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false)
  383. MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false)
  384. MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false)
  385. MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false)
  386. MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false)
  387. MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false)
  388. MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false)
  389. MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false)
  390. MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
  391. MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
  392. MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
  393. MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false)
  394. MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false)
  395. MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false)
  396. MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false)
  397. MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false)
  398. MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false)
  399. MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false)
  400. MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false)
  401. /* McASP function */
  402. MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
  403. MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
  404. MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
  405. MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
  406. MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
  407. MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
  408. MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
  409. MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
  410. MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
  411. MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
  412. MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
  413. MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
  414. MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
  415. MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
  416. MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
  417. MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
  418. MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
  419. MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
  420. MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
  421. MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
  422. MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
  423. MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
  424. MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
  425. /* LCD function */
  426. MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
  427. MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
  428. MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
  429. MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
  430. MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
  431. MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
  432. MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
  433. MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
  434. MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
  435. MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
  436. MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
  437. MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
  438. MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
  439. MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
  440. MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
  441. MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
  442. MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
  443. MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
  444. MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
  445. MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
  446. /* MMC/SD0 function */
  447. MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
  448. MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
  449. MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
  450. MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
  451. MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
  452. MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
  453. /* MMC/SD1 function */
  454. MUX_CFG(DA850, MMCSD1_DAT_0, 18, 8, 15, 2, false)
  455. MUX_CFG(DA850, MMCSD1_DAT_1, 19, 16, 15, 2, false)
  456. MUX_CFG(DA850, MMCSD1_DAT_2, 19, 12, 15, 2, false)
  457. MUX_CFG(DA850, MMCSD1_DAT_3, 19, 8, 15, 2, false)
  458. MUX_CFG(DA850, MMCSD1_CLK, 18, 12, 15, 2, false)
  459. MUX_CFG(DA850, MMCSD1_CMD, 18, 16, 15, 2, false)
  460. /* EMIF2.5/EMIFA function */
  461. MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
  462. MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
  463. MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
  464. MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
  465. MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
  466. MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
  467. MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
  468. MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
  469. MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
  470. MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
  471. MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
  472. MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
  473. MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
  474. MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
  475. MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false)
  476. MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false)
  477. MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false)
  478. MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false)
  479. MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false)
  480. MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false)
  481. MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false)
  482. MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false)
  483. MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false)
  484. MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false)
  485. MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false)
  486. MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false)
  487. MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false)
  488. MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false)
  489. MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false)
  490. MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false)
  491. MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false)
  492. MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false)
  493. MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false)
  494. MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false)
  495. MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false)
  496. MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false)
  497. MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false)
  498. MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false)
  499. MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false)
  500. MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false)
  501. MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false)
  502. MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false)
  503. MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false)
  504. MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false)
  505. MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false)
  506. MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false)
  507. MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false)
  508. MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false)
  509. /* GPIO function */
  510. MUX_CFG(DA850, GPIO2_4, 6, 12, 15, 8, false)
  511. MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false)
  512. MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false)
  513. MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
  514. MUX_CFG(DA850, GPIO3_12, 7, 12, 15, 8, false)
  515. MUX_CFG(DA850, GPIO3_13, 7, 8, 15, 8, false)
  516. MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
  517. MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
  518. MUX_CFG(DA850, GPIO6_9, 13, 24, 15, 8, false)
  519. MUX_CFG(DA850, GPIO6_10, 13, 20, 15, 8, false)
  520. MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false)
  521. MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false)
  522. #endif
  523. };
  524. const short da850_i2c0_pins[] __initdata = {
  525. DA850_I2C0_SDA, DA850_I2C0_SCL,
  526. -1
  527. };
  528. const short da850_i2c1_pins[] __initdata = {
  529. DA850_I2C1_SCL, DA850_I2C1_SDA,
  530. -1
  531. };
  532. const short da850_lcdcntl_pins[] __initdata = {
  533. DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
  534. DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
  535. DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
  536. DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
  537. DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
  538. -1
  539. };
  540. /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
  541. static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
  542. [IRQ_DA8XX_COMMTX] = 7,
  543. [IRQ_DA8XX_COMMRX] = 7,
  544. [IRQ_DA8XX_NINT] = 7,
  545. [IRQ_DA8XX_EVTOUT0] = 7,
  546. [IRQ_DA8XX_EVTOUT1] = 7,
  547. [IRQ_DA8XX_EVTOUT2] = 7,
  548. [IRQ_DA8XX_EVTOUT3] = 7,
  549. [IRQ_DA8XX_EVTOUT4] = 7,
  550. [IRQ_DA8XX_EVTOUT5] = 7,
  551. [IRQ_DA8XX_EVTOUT6] = 7,
  552. [IRQ_DA8XX_EVTOUT7] = 7,
  553. [IRQ_DA8XX_CCINT0] = 7,
  554. [IRQ_DA8XX_CCERRINT] = 7,
  555. [IRQ_DA8XX_TCERRINT0] = 7,
  556. [IRQ_DA8XX_AEMIFINT] = 7,
  557. [IRQ_DA8XX_I2CINT0] = 7,
  558. [IRQ_DA8XX_MMCSDINT0] = 7,
  559. [IRQ_DA8XX_MMCSDINT1] = 7,
  560. [IRQ_DA8XX_ALLINT0] = 7,
  561. [IRQ_DA8XX_RTC] = 7,
  562. [IRQ_DA8XX_SPINT0] = 7,
  563. [IRQ_DA8XX_TINT12_0] = 7,
  564. [IRQ_DA8XX_TINT34_0] = 7,
  565. [IRQ_DA8XX_TINT12_1] = 7,
  566. [IRQ_DA8XX_TINT34_1] = 7,
  567. [IRQ_DA8XX_UARTINT0] = 7,
  568. [IRQ_DA8XX_KEYMGRINT] = 7,
  569. [IRQ_DA850_MPUADDRERR0] = 7,
  570. [IRQ_DA8XX_CHIPINT0] = 7,
  571. [IRQ_DA8XX_CHIPINT1] = 7,
  572. [IRQ_DA8XX_CHIPINT2] = 7,
  573. [IRQ_DA8XX_CHIPINT3] = 7,
  574. [IRQ_DA8XX_TCERRINT1] = 7,
  575. [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7,
  576. [IRQ_DA8XX_C0_RX_PULSE] = 7,
  577. [IRQ_DA8XX_C0_TX_PULSE] = 7,
  578. [IRQ_DA8XX_C0_MISC_PULSE] = 7,
  579. [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7,
  580. [IRQ_DA8XX_C1_RX_PULSE] = 7,
  581. [IRQ_DA8XX_C1_TX_PULSE] = 7,
  582. [IRQ_DA8XX_C1_MISC_PULSE] = 7,
  583. [IRQ_DA8XX_MEMERR] = 7,
  584. [IRQ_DA8XX_GPIO0] = 7,
  585. [IRQ_DA8XX_GPIO1] = 7,
  586. [IRQ_DA8XX_GPIO2] = 7,
  587. [IRQ_DA8XX_GPIO3] = 7,
  588. [IRQ_DA8XX_GPIO4] = 7,
  589. [IRQ_DA8XX_GPIO5] = 7,
  590. [IRQ_DA8XX_GPIO6] = 7,
  591. [IRQ_DA8XX_GPIO7] = 7,
  592. [IRQ_DA8XX_GPIO8] = 7,
  593. [IRQ_DA8XX_I2CINT1] = 7,
  594. [IRQ_DA8XX_LCDINT] = 7,
  595. [IRQ_DA8XX_UARTINT1] = 7,
  596. [IRQ_DA8XX_MCASPINT] = 7,
  597. [IRQ_DA8XX_ALLINT1] = 7,
  598. [IRQ_DA8XX_SPINT1] = 7,
  599. [IRQ_DA8XX_UHPI_INT1] = 7,
  600. [IRQ_DA8XX_USB_INT] = 7,
  601. [IRQ_DA8XX_IRQN] = 7,
  602. [IRQ_DA8XX_RWAKEUP] = 7,
  603. [IRQ_DA8XX_UARTINT2] = 7,
  604. [IRQ_DA8XX_DFTSSINT] = 7,
  605. [IRQ_DA8XX_EHRPWM0] = 7,
  606. [IRQ_DA8XX_EHRPWM0TZ] = 7,
  607. [IRQ_DA8XX_EHRPWM1] = 7,
  608. [IRQ_DA8XX_EHRPWM1TZ] = 7,
  609. [IRQ_DA850_SATAINT] = 7,
  610. [IRQ_DA850_TINTALL_2] = 7,
  611. [IRQ_DA8XX_ECAP0] = 7,
  612. [IRQ_DA8XX_ECAP1] = 7,
  613. [IRQ_DA8XX_ECAP2] = 7,
  614. [IRQ_DA850_MMCSDINT0_1] = 7,
  615. [IRQ_DA850_MMCSDINT1_1] = 7,
  616. [IRQ_DA850_T12CMPINT0_2] = 7,
  617. [IRQ_DA850_T12CMPINT1_2] = 7,
  618. [IRQ_DA850_T12CMPINT2_2] = 7,
  619. [IRQ_DA850_T12CMPINT3_2] = 7,
  620. [IRQ_DA850_T12CMPINT4_2] = 7,
  621. [IRQ_DA850_T12CMPINT5_2] = 7,
  622. [IRQ_DA850_T12CMPINT6_2] = 7,
  623. [IRQ_DA850_T12CMPINT7_2] = 7,
  624. [IRQ_DA850_T12CMPINT0_3] = 7,
  625. [IRQ_DA850_T12CMPINT1_3] = 7,
  626. [IRQ_DA850_T12CMPINT2_3] = 7,
  627. [IRQ_DA850_T12CMPINT3_3] = 7,
  628. [IRQ_DA850_T12CMPINT4_3] = 7,
  629. [IRQ_DA850_T12CMPINT5_3] = 7,
  630. [IRQ_DA850_T12CMPINT6_3] = 7,
  631. [IRQ_DA850_T12CMPINT7_3] = 7,
  632. [IRQ_DA850_RPIINT] = 7,
  633. [IRQ_DA850_VPIFINT] = 7,
  634. [IRQ_DA850_CCINT1] = 7,
  635. [IRQ_DA850_CCERRINT1] = 7,
  636. [IRQ_DA850_TCERRINT2] = 7,
  637. [IRQ_DA850_TINTALL_3] = 7,
  638. [IRQ_DA850_MCBSP0RINT] = 7,
  639. [IRQ_DA850_MCBSP0XINT] = 7,
  640. [IRQ_DA850_MCBSP1RINT] = 7,
  641. [IRQ_DA850_MCBSP1XINT] = 7,
  642. [IRQ_DA8XX_ARMCLKSTOPREQ] = 7,
  643. };
  644. static struct map_desc da850_io_desc[] = {
  645. {
  646. .virtual = IO_VIRT,
  647. .pfn = __phys_to_pfn(IO_PHYS),
  648. .length = IO_SIZE,
  649. .type = MT_DEVICE
  650. },
  651. {
  652. .virtual = DA8XX_CP_INTC_VIRT,
  653. .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE),
  654. .length = DA8XX_CP_INTC_SIZE,
  655. .type = MT_DEVICE
  656. },
  657. {
  658. .virtual = SRAM_VIRT,
  659. .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
  660. .length = SZ_8K,
  661. .type = MT_DEVICE
  662. },
  663. };
  664. static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
  665. /* Contents of JTAG ID register used to identify exact cpu type */
  666. static struct davinci_id da850_ids[] = {
  667. {
  668. .variant = 0x0,
  669. .part_no = 0xb7d1,
  670. .manufacturer = 0x017, /* 0x02f >> 1 */
  671. .cpu_id = DAVINCI_CPU_ID_DA850,
  672. .name = "da850/omap-l138",
  673. },
  674. {
  675. .variant = 0x1,
  676. .part_no = 0xb7d1,
  677. .manufacturer = 0x017, /* 0x02f >> 1 */
  678. .cpu_id = DAVINCI_CPU_ID_DA850,
  679. .name = "da850/omap-l138/am18x",
  680. },
  681. };
  682. static struct davinci_timer_instance da850_timer_instance[4] = {
  683. {
  684. .base = DA8XX_TIMER64P0_BASE,
  685. .bottom_irq = IRQ_DA8XX_TINT12_0,
  686. .top_irq = IRQ_DA8XX_TINT34_0,
  687. },
  688. {
  689. .base = DA8XX_TIMER64P1_BASE,
  690. .bottom_irq = IRQ_DA8XX_TINT12_1,
  691. .top_irq = IRQ_DA8XX_TINT34_1,
  692. },
  693. {
  694. .base = DA850_TIMER64P2_BASE,
  695. .bottom_irq = IRQ_DA850_TINT12_2,
  696. .top_irq = IRQ_DA850_TINT34_2,
  697. },
  698. {
  699. .base = DA850_TIMER64P3_BASE,
  700. .bottom_irq = IRQ_DA850_TINT12_3,
  701. .top_irq = IRQ_DA850_TINT34_3,
  702. },
  703. };
  704. /*
  705. * T0_BOT: Timer 0, bottom : Used for clock_event
  706. * T0_TOP: Timer 0, top : Used for clocksource
  707. * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
  708. */
  709. static struct davinci_timer_info da850_timer_info = {
  710. .timers = da850_timer_instance,
  711. .clockevent_id = T0_BOT,
  712. .clocksource_id = T0_TOP,
  713. };
  714. static void da850_set_async3_src(int pllnum)
  715. {
  716. struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
  717. struct clk_lookup *c;
  718. unsigned int v;
  719. int ret;
  720. for (c = da850_clks; c->clk; c++) {
  721. clk = c->clk;
  722. if (clk->flags & DA850_CLK_ASYNC3) {
  723. ret = clk_set_parent(clk, newparent);
  724. WARN(ret, "DA850: unable to re-parent clock %s",
  725. clk->name);
  726. }
  727. }
  728. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  729. if (pllnum)
  730. v |= CFGCHIP3_ASYNC3_CLKSRC;
  731. else
  732. v &= ~CFGCHIP3_ASYNC3_CLKSRC;
  733. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  734. }
  735. #ifdef CONFIG_CPU_FREQ
  736. /*
  737. * Notes:
  738. * According to the TRM, minimum PLLM results in maximum power savings.
  739. * The OPP definitions below should keep the PLLM as low as possible.
  740. *
  741. * The output of the PLLM must be between 300 to 600 MHz.
  742. */
  743. struct da850_opp {
  744. unsigned int freq; /* in KHz */
  745. unsigned int prediv;
  746. unsigned int mult;
  747. unsigned int postdiv;
  748. unsigned int cvdd_min; /* in uV */
  749. unsigned int cvdd_max; /* in uV */
  750. };
  751. static const struct da850_opp da850_opp_456 = {
  752. .freq = 456000,
  753. .prediv = 1,
  754. .mult = 19,
  755. .postdiv = 1,
  756. .cvdd_min = 1300000,
  757. .cvdd_max = 1350000,
  758. };
  759. static const struct da850_opp da850_opp_408 = {
  760. .freq = 408000,
  761. .prediv = 1,
  762. .mult = 17,
  763. .postdiv = 1,
  764. .cvdd_min = 1300000,
  765. .cvdd_max = 1350000,
  766. };
  767. static const struct da850_opp da850_opp_372 = {
  768. .freq = 372000,
  769. .prediv = 2,
  770. .mult = 31,
  771. .postdiv = 1,
  772. .cvdd_min = 1200000,
  773. .cvdd_max = 1320000,
  774. };
  775. static const struct da850_opp da850_opp_300 = {
  776. .freq = 300000,
  777. .prediv = 1,
  778. .mult = 25,
  779. .postdiv = 2,
  780. .cvdd_min = 1200000,
  781. .cvdd_max = 1320000,
  782. };
  783. static const struct da850_opp da850_opp_200 = {
  784. .freq = 200000,
  785. .prediv = 1,
  786. .mult = 25,
  787. .postdiv = 3,
  788. .cvdd_min = 1100000,
  789. .cvdd_max = 1160000,
  790. };
  791. static const struct da850_opp da850_opp_96 = {
  792. .freq = 96000,
  793. .prediv = 1,
  794. .mult = 20,
  795. .postdiv = 5,
  796. .cvdd_min = 1000000,
  797. .cvdd_max = 1050000,
  798. };
  799. #define OPP(freq) \
  800. { \
  801. .index = (unsigned int) &da850_opp_##freq, \
  802. .frequency = freq * 1000, \
  803. }
  804. static struct cpufreq_frequency_table da850_freq_table[] = {
  805. OPP(456),
  806. OPP(408),
  807. OPP(372),
  808. OPP(300),
  809. OPP(200),
  810. OPP(96),
  811. {
  812. .index = 0,
  813. .frequency = CPUFREQ_TABLE_END,
  814. },
  815. };
  816. #ifdef CONFIG_REGULATOR
  817. static int da850_set_voltage(unsigned int index);
  818. static int da850_regulator_init(void);
  819. #endif
  820. static struct davinci_cpufreq_config cpufreq_info = {
  821. .freq_table = da850_freq_table,
  822. #ifdef CONFIG_REGULATOR
  823. .init = da850_regulator_init,
  824. .set_voltage = da850_set_voltage,
  825. #endif
  826. };
  827. #ifdef CONFIG_REGULATOR
  828. static struct regulator *cvdd;
  829. static int da850_set_voltage(unsigned int index)
  830. {
  831. struct da850_opp *opp;
  832. if (!cvdd)
  833. return -ENODEV;
  834. opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
  835. return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
  836. }
  837. static int da850_regulator_init(void)
  838. {
  839. cvdd = regulator_get(NULL, "cvdd");
  840. if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
  841. " voltage scaling unsupported\n")) {
  842. return PTR_ERR(cvdd);
  843. }
  844. return 0;
  845. }
  846. #endif
  847. static struct platform_device da850_cpufreq_device = {
  848. .name = "cpufreq-davinci",
  849. .dev = {
  850. .platform_data = &cpufreq_info,
  851. },
  852. .id = -1,
  853. };
  854. unsigned int da850_max_speed = 300000;
  855. int __init da850_register_cpufreq(char *async_clk)
  856. {
  857. int i;
  858. /* cpufreq driver can help keep an "async" clock constant */
  859. if (async_clk)
  860. clk_add_alias("async", da850_cpufreq_device.name,
  861. async_clk, NULL);
  862. for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) {
  863. if (da850_freq_table[i].frequency <= da850_max_speed) {
  864. cpufreq_info.freq_table = &da850_freq_table[i];
  865. break;
  866. }
  867. }
  868. return platform_device_register(&da850_cpufreq_device);
  869. }
  870. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  871. {
  872. int i, ret = 0, diff;
  873. unsigned int best = (unsigned int) -1;
  874. struct cpufreq_frequency_table *table = cpufreq_info.freq_table;
  875. rate /= 1000; /* convert to kHz */
  876. for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
  877. diff = table[i].frequency - rate;
  878. if (diff < 0)
  879. diff = -diff;
  880. if (diff < best) {
  881. best = diff;
  882. ret = table[i].frequency;
  883. }
  884. }
  885. return ret * 1000;
  886. }
  887. static int da850_set_armrate(struct clk *clk, unsigned long index)
  888. {
  889. struct clk *pllclk = &pll0_clk;
  890. return clk_set_rate(pllclk, index);
  891. }
  892. static int da850_set_pll0rate(struct clk *clk, unsigned long index)
  893. {
  894. unsigned int prediv, mult, postdiv;
  895. struct da850_opp *opp;
  896. struct pll_data *pll = clk->pll_data;
  897. int ret;
  898. opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
  899. prediv = opp->prediv;
  900. mult = opp->mult;
  901. postdiv = opp->postdiv;
  902. ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
  903. if (WARN_ON(ret))
  904. return ret;
  905. return 0;
  906. }
  907. #else
  908. int __init da850_register_cpufreq(char *async_clk)
  909. {
  910. return 0;
  911. }
  912. static int da850_set_armrate(struct clk *clk, unsigned long rate)
  913. {
  914. return -EINVAL;
  915. }
  916. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
  917. {
  918. return -EINVAL;
  919. }
  920. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  921. {
  922. return clk->rate;
  923. }
  924. #endif
  925. int __init da850_register_pm(struct platform_device *pdev)
  926. {
  927. int ret;
  928. struct davinci_pm_config *pdata = pdev->dev.platform_data;
  929. ret = davinci_cfg_reg(DA850_RTC_ALARM);
  930. if (ret)
  931. return ret;
  932. pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
  933. pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
  934. pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C;
  935. pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
  936. if (!pdata->cpupll_reg_base)
  937. return -ENOMEM;
  938. pdata->ddrpll_reg_base = ioremap(DA850_PLL1_BASE, SZ_4K);
  939. if (!pdata->ddrpll_reg_base) {
  940. ret = -ENOMEM;
  941. goto no_ddrpll_mem;
  942. }
  943. pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
  944. if (!pdata->ddrpsc_reg_base) {
  945. ret = -ENOMEM;
  946. goto no_ddrpsc_mem;
  947. }
  948. return platform_device_register(pdev);
  949. no_ddrpsc_mem:
  950. iounmap(pdata->ddrpll_reg_base);
  951. no_ddrpll_mem:
  952. iounmap(pdata->cpupll_reg_base);
  953. return ret;
  954. }
  955. static struct davinci_soc_info davinci_soc_info_da850 = {
  956. .io_desc = da850_io_desc,
  957. .io_desc_num = ARRAY_SIZE(da850_io_desc),
  958. .jtag_id_reg = DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG,
  959. .ids = da850_ids,
  960. .ids_num = ARRAY_SIZE(da850_ids),
  961. .cpu_clks = da850_clks,
  962. .psc_bases = da850_psc_bases,
  963. .psc_bases_num = ARRAY_SIZE(da850_psc_bases),
  964. .pinmux_base = DA8XX_SYSCFG0_BASE + 0x120,
  965. .pinmux_pins = da850_pins,
  966. .pinmux_pins_num = ARRAY_SIZE(da850_pins),
  967. .intc_base = DA8XX_CP_INTC_BASE,
  968. .intc_type = DAVINCI_INTC_TYPE_CP_INTC,
  969. .intc_irq_prios = da850_default_priorities,
  970. .intc_irq_num = DA850_N_CP_INTC_IRQ,
  971. .timer_info = &da850_timer_info,
  972. .gpio_type = GPIO_TYPE_DAVINCI,
  973. .gpio_base = DA8XX_GPIO_BASE,
  974. .gpio_num = 144,
  975. .gpio_irq = IRQ_DA8XX_GPIO0,
  976. .serial_dev = &da8xx_serial_device,
  977. .emac_pdata = &da8xx_emac_pdata,
  978. .sram_dma = DA8XX_ARM_RAM_BASE,
  979. .sram_len = SZ_8K,
  980. };
  981. void __init da850_init(void)
  982. {
  983. unsigned int v;
  984. davinci_common_init(&davinci_soc_info_da850);
  985. da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
  986. if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
  987. return;
  988. da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
  989. if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
  990. return;
  991. /*
  992. * Move the clock source of Async3 domain to PLL1 SYSCLK2.
  993. * This helps keeping the peripherals on this domain insulated
  994. * from CPU frequency changes caused by DVFS. The firmware sets
  995. * both PLL0 and PLL1 to the same frequency so, there should not
  996. * be any noticeable change even in non-DVFS use cases.
  997. */
  998. da850_set_async3_src(1);
  999. /* Unlock writing to PLL0 registers */
  1000. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
  1001. v &= ~CFGCHIP0_PLL_MASTER_LOCK;
  1002. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
  1003. /* Unlock writing to PLL1 registers */
  1004. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  1005. v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
  1006. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  1007. }