da850.c 29 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/init.h>
  15. #include <linux/clk.h>
  16. #include <linux/platform_device.h>
  17. #include <linux/cpufreq.h>
  18. #include <linux/regulator/consumer.h>
  19. #include <asm/mach/map.h>
  20. #include <mach/psc.h>
  21. #include <mach/irqs.h>
  22. #include <mach/cputype.h>
  23. #include <mach/common.h>
  24. #include <mach/time.h>
  25. #include <mach/da8xx.h>
  26. #include <mach/cpufreq.h>
  27. #include "clock.h"
  28. #include "mux.h"
  29. /* SoC specific clock flags */
  30. #define DA850_CLK_ASYNC3 BIT(16)
  31. #define DA850_PLL1_BASE 0x01e1a000
  32. #define DA850_TIMER64P2_BASE 0x01f0c000
  33. #define DA850_TIMER64P3_BASE 0x01f0d000
  34. #define DA850_REF_FREQ 24000000
  35. #define CFGCHIP3_ASYNC3_CLKSRC BIT(4)
  36. #define CFGCHIP3_PLL1_MASTER_LOCK BIT(5)
  37. #define CFGCHIP0_PLL_MASTER_LOCK BIT(4)
  38. static int da850_set_armrate(struct clk *clk, unsigned long rate);
  39. static int da850_round_armrate(struct clk *clk, unsigned long rate);
  40. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);
  41. static struct pll_data pll0_data = {
  42. .num = 1,
  43. .phys_base = DA8XX_PLL0_BASE,
  44. .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV,
  45. };
  46. static struct clk ref_clk = {
  47. .name = "ref_clk",
  48. .rate = DA850_REF_FREQ,
  49. };
  50. static struct clk pll0_clk = {
  51. .name = "pll0",
  52. .parent = &ref_clk,
  53. .pll_data = &pll0_data,
  54. .flags = CLK_PLL,
  55. .set_rate = da850_set_pll0rate,
  56. };
  57. static struct clk pll0_aux_clk = {
  58. .name = "pll0_aux_clk",
  59. .parent = &pll0_clk,
  60. .flags = CLK_PLL | PRE_PLL,
  61. };
  62. static struct clk pll0_sysclk2 = {
  63. .name = "pll0_sysclk2",
  64. .parent = &pll0_clk,
  65. .flags = CLK_PLL,
  66. .div_reg = PLLDIV2,
  67. };
  68. static struct clk pll0_sysclk3 = {
  69. .name = "pll0_sysclk3",
  70. .parent = &pll0_clk,
  71. .flags = CLK_PLL,
  72. .div_reg = PLLDIV3,
  73. };
  74. static struct clk pll0_sysclk4 = {
  75. .name = "pll0_sysclk4",
  76. .parent = &pll0_clk,
  77. .flags = CLK_PLL,
  78. .div_reg = PLLDIV4,
  79. };
  80. static struct clk pll0_sysclk5 = {
  81. .name = "pll0_sysclk5",
  82. .parent = &pll0_clk,
  83. .flags = CLK_PLL,
  84. .div_reg = PLLDIV5,
  85. };
  86. static struct clk pll0_sysclk6 = {
  87. .name = "pll0_sysclk6",
  88. .parent = &pll0_clk,
  89. .flags = CLK_PLL,
  90. .div_reg = PLLDIV6,
  91. };
  92. static struct clk pll0_sysclk7 = {
  93. .name = "pll0_sysclk7",
  94. .parent = &pll0_clk,
  95. .flags = CLK_PLL,
  96. .div_reg = PLLDIV7,
  97. };
  98. static struct pll_data pll1_data = {
  99. .num = 2,
  100. .phys_base = DA850_PLL1_BASE,
  101. .flags = PLL_HAS_POSTDIV,
  102. };
  103. static struct clk pll1_clk = {
  104. .name = "pll1",
  105. .parent = &ref_clk,
  106. .pll_data = &pll1_data,
  107. .flags = CLK_PLL,
  108. };
  109. static struct clk pll1_aux_clk = {
  110. .name = "pll1_aux_clk",
  111. .parent = &pll1_clk,
  112. .flags = CLK_PLL | PRE_PLL,
  113. };
  114. static struct clk pll1_sysclk2 = {
  115. .name = "pll1_sysclk2",
  116. .parent = &pll1_clk,
  117. .flags = CLK_PLL,
  118. .div_reg = PLLDIV2,
  119. };
  120. static struct clk pll1_sysclk3 = {
  121. .name = "pll1_sysclk3",
  122. .parent = &pll1_clk,
  123. .flags = CLK_PLL,
  124. .div_reg = PLLDIV3,
  125. };
  126. static struct clk pll1_sysclk4 = {
  127. .name = "pll1_sysclk4",
  128. .parent = &pll1_clk,
  129. .flags = CLK_PLL,
  130. .div_reg = PLLDIV4,
  131. };
  132. static struct clk pll1_sysclk5 = {
  133. .name = "pll1_sysclk5",
  134. .parent = &pll1_clk,
  135. .flags = CLK_PLL,
  136. .div_reg = PLLDIV5,
  137. };
  138. static struct clk pll1_sysclk6 = {
  139. .name = "pll0_sysclk6",
  140. .parent = &pll0_clk,
  141. .flags = CLK_PLL,
  142. .div_reg = PLLDIV6,
  143. };
  144. static struct clk pll1_sysclk7 = {
  145. .name = "pll1_sysclk7",
  146. .parent = &pll1_clk,
  147. .flags = CLK_PLL,
  148. .div_reg = PLLDIV7,
  149. };
  150. static struct clk i2c0_clk = {
  151. .name = "i2c0",
  152. .parent = &pll0_aux_clk,
  153. };
  154. static struct clk timerp64_0_clk = {
  155. .name = "timer0",
  156. .parent = &pll0_aux_clk,
  157. };
  158. static struct clk timerp64_1_clk = {
  159. .name = "timer1",
  160. .parent = &pll0_aux_clk,
  161. };
  162. static struct clk arm_rom_clk = {
  163. .name = "arm_rom",
  164. .parent = &pll0_sysclk2,
  165. .lpsc = DA8XX_LPSC0_ARM_RAM_ROM,
  166. .flags = ALWAYS_ENABLED,
  167. };
  168. static struct clk tpcc0_clk = {
  169. .name = "tpcc0",
  170. .parent = &pll0_sysclk2,
  171. .lpsc = DA8XX_LPSC0_TPCC,
  172. .flags = ALWAYS_ENABLED | CLK_PSC,
  173. };
  174. static struct clk tptc0_clk = {
  175. .name = "tptc0",
  176. .parent = &pll0_sysclk2,
  177. .lpsc = DA8XX_LPSC0_TPTC0,
  178. .flags = ALWAYS_ENABLED,
  179. };
  180. static struct clk tptc1_clk = {
  181. .name = "tptc1",
  182. .parent = &pll0_sysclk2,
  183. .lpsc = DA8XX_LPSC0_TPTC1,
  184. .flags = ALWAYS_ENABLED,
  185. };
  186. static struct clk tpcc1_clk = {
  187. .name = "tpcc1",
  188. .parent = &pll0_sysclk2,
  189. .lpsc = DA850_LPSC1_TPCC1,
  190. .gpsc = 1,
  191. .flags = CLK_PSC | ALWAYS_ENABLED,
  192. };
  193. static struct clk tptc2_clk = {
  194. .name = "tptc2",
  195. .parent = &pll0_sysclk2,
  196. .lpsc = DA850_LPSC1_TPTC2,
  197. .gpsc = 1,
  198. .flags = ALWAYS_ENABLED,
  199. };
  200. static struct clk uart0_clk = {
  201. .name = "uart0",
  202. .parent = &pll0_sysclk2,
  203. .lpsc = DA8XX_LPSC0_UART0,
  204. };
  205. static struct clk uart1_clk = {
  206. .name = "uart1",
  207. .parent = &pll0_sysclk2,
  208. .lpsc = DA8XX_LPSC1_UART1,
  209. .gpsc = 1,
  210. .flags = DA850_CLK_ASYNC3,
  211. };
  212. static struct clk uart2_clk = {
  213. .name = "uart2",
  214. .parent = &pll0_sysclk2,
  215. .lpsc = DA8XX_LPSC1_UART2,
  216. .gpsc = 1,
  217. .flags = DA850_CLK_ASYNC3,
  218. };
  219. static struct clk aintc_clk = {
  220. .name = "aintc",
  221. .parent = &pll0_sysclk4,
  222. .lpsc = DA8XX_LPSC0_AINTC,
  223. .flags = ALWAYS_ENABLED,
  224. };
  225. static struct clk gpio_clk = {
  226. .name = "gpio",
  227. .parent = &pll0_sysclk4,
  228. .lpsc = DA8XX_LPSC1_GPIO,
  229. .gpsc = 1,
  230. };
  231. static struct clk i2c1_clk = {
  232. .name = "i2c1",
  233. .parent = &pll0_sysclk4,
  234. .lpsc = DA8XX_LPSC1_I2C,
  235. .gpsc = 1,
  236. };
  237. static struct clk emif3_clk = {
  238. .name = "emif3",
  239. .parent = &pll0_sysclk5,
  240. .lpsc = DA8XX_LPSC1_EMIF3C,
  241. .gpsc = 1,
  242. .flags = ALWAYS_ENABLED,
  243. };
  244. static struct clk arm_clk = {
  245. .name = "arm",
  246. .parent = &pll0_sysclk6,
  247. .lpsc = DA8XX_LPSC0_ARM,
  248. .flags = ALWAYS_ENABLED,
  249. .set_rate = da850_set_armrate,
  250. .round_rate = da850_round_armrate,
  251. };
  252. static struct clk rmii_clk = {
  253. .name = "rmii",
  254. .parent = &pll0_sysclk7,
  255. };
  256. static struct clk emac_clk = {
  257. .name = "emac",
  258. .parent = &pll0_sysclk4,
  259. .lpsc = DA8XX_LPSC1_CPGMAC,
  260. .gpsc = 1,
  261. };
  262. static struct clk mcasp_clk = {
  263. .name = "mcasp",
  264. .parent = &pll0_sysclk2,
  265. .lpsc = DA8XX_LPSC1_McASP0,
  266. .gpsc = 1,
  267. .flags = DA850_CLK_ASYNC3,
  268. };
  269. static struct clk lcdc_clk = {
  270. .name = "lcdc",
  271. .parent = &pll0_sysclk2,
  272. .lpsc = DA8XX_LPSC1_LCDC,
  273. .gpsc = 1,
  274. };
  275. static struct clk mmcsd_clk = {
  276. .name = "mmcsd",
  277. .parent = &pll0_sysclk2,
  278. .lpsc = DA8XX_LPSC0_MMC_SD,
  279. };
  280. static struct clk aemif_clk = {
  281. .name = "aemif",
  282. .parent = &pll0_sysclk3,
  283. .lpsc = DA8XX_LPSC0_EMIF25,
  284. .flags = ALWAYS_ENABLED,
  285. };
  286. static struct davinci_clk da850_clks[] = {
  287. CLK(NULL, "ref", &ref_clk),
  288. CLK(NULL, "pll0", &pll0_clk),
  289. CLK(NULL, "pll0_aux", &pll0_aux_clk),
  290. CLK(NULL, "pll0_sysclk2", &pll0_sysclk2),
  291. CLK(NULL, "pll0_sysclk3", &pll0_sysclk3),
  292. CLK(NULL, "pll0_sysclk4", &pll0_sysclk4),
  293. CLK(NULL, "pll0_sysclk5", &pll0_sysclk5),
  294. CLK(NULL, "pll0_sysclk6", &pll0_sysclk6),
  295. CLK(NULL, "pll0_sysclk7", &pll0_sysclk7),
  296. CLK(NULL, "pll1", &pll1_clk),
  297. CLK(NULL, "pll1_aux", &pll1_aux_clk),
  298. CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
  299. CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
  300. CLK(NULL, "pll1_sysclk4", &pll1_sysclk4),
  301. CLK(NULL, "pll1_sysclk5", &pll1_sysclk5),
  302. CLK(NULL, "pll1_sysclk6", &pll1_sysclk6),
  303. CLK(NULL, "pll1_sysclk7", &pll1_sysclk7),
  304. CLK("i2c_davinci.1", NULL, &i2c0_clk),
  305. CLK(NULL, "timer0", &timerp64_0_clk),
  306. CLK("watchdog", NULL, &timerp64_1_clk),
  307. CLK(NULL, "arm_rom", &arm_rom_clk),
  308. CLK(NULL, "tpcc0", &tpcc0_clk),
  309. CLK(NULL, "tptc0", &tptc0_clk),
  310. CLK(NULL, "tptc1", &tptc1_clk),
  311. CLK(NULL, "tpcc1", &tpcc1_clk),
  312. CLK(NULL, "tptc2", &tptc2_clk),
  313. CLK(NULL, "uart0", &uart0_clk),
  314. CLK(NULL, "uart1", &uart1_clk),
  315. CLK(NULL, "uart2", &uart2_clk),
  316. CLK(NULL, "aintc", &aintc_clk),
  317. CLK(NULL, "gpio", &gpio_clk),
  318. CLK("i2c_davinci.2", NULL, &i2c1_clk),
  319. CLK(NULL, "emif3", &emif3_clk),
  320. CLK(NULL, "arm", &arm_clk),
  321. CLK(NULL, "rmii", &rmii_clk),
  322. CLK("davinci_emac.1", NULL, &emac_clk),
  323. CLK("davinci-mcasp.0", NULL, &mcasp_clk),
  324. CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
  325. CLK("davinci_mmc.0", NULL, &mmcsd_clk),
  326. CLK(NULL, "aemif", &aemif_clk),
  327. CLK(NULL, NULL, NULL),
  328. };
  329. /*
  330. * Device specific mux setup
  331. *
  332. * soc description mux mode mode mux dbg
  333. * reg offset mask mode
  334. */
  335. static const struct mux_config da850_pins[] = {
  336. #ifdef CONFIG_DAVINCI_MUX
  337. /* UART0 function */
  338. MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false)
  339. MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false)
  340. MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false)
  341. MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false)
  342. /* UART1 function */
  343. MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false)
  344. MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false)
  345. /* UART2 function */
  346. MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false)
  347. MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false)
  348. /* I2C1 function */
  349. MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false)
  350. MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false)
  351. /* I2C0 function */
  352. MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false)
  353. MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false)
  354. /* EMAC function */
  355. MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false)
  356. MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false)
  357. MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false)
  358. MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false)
  359. MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false)
  360. MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false)
  361. MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false)
  362. MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false)
  363. MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false)
  364. MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false)
  365. MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false)
  366. MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false)
  367. MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false)
  368. MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false)
  369. MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
  370. MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
  371. MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
  372. MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false)
  373. MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false)
  374. MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false)
  375. MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false)
  376. MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false)
  377. MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false)
  378. MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false)
  379. MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false)
  380. /* McASP function */
  381. MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
  382. MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
  383. MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
  384. MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
  385. MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
  386. MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
  387. MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
  388. MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
  389. MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
  390. MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
  391. MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
  392. MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
  393. MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
  394. MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
  395. MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
  396. MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
  397. MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
  398. MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
  399. MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
  400. MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
  401. MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
  402. MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
  403. MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
  404. /* LCD function */
  405. MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
  406. MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
  407. MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
  408. MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
  409. MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
  410. MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
  411. MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
  412. MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
  413. MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
  414. MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
  415. MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
  416. MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
  417. MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
  418. MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
  419. MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
  420. MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
  421. MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
  422. MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
  423. MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
  424. MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
  425. /* MMC/SD0 function */
  426. MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
  427. MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
  428. MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
  429. MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
  430. MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
  431. MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
  432. /* EMIF2.5/EMIFA function */
  433. MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
  434. MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
  435. MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
  436. MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
  437. MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
  438. MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
  439. MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
  440. MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
  441. MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
  442. MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
  443. MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
  444. MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
  445. MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
  446. MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
  447. MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false)
  448. MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false)
  449. MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false)
  450. MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false)
  451. MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false)
  452. MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false)
  453. MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false)
  454. MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false)
  455. MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false)
  456. MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false)
  457. MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false)
  458. MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false)
  459. MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false)
  460. MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false)
  461. MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false)
  462. MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false)
  463. MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false)
  464. MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false)
  465. MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false)
  466. MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false)
  467. MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false)
  468. MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false)
  469. MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false)
  470. MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false)
  471. MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false)
  472. MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false)
  473. MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false)
  474. MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false)
  475. MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false)
  476. MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false)
  477. MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false)
  478. MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false)
  479. MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false)
  480. MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false)
  481. /* GPIO function */
  482. MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false)
  483. MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false)
  484. MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
  485. MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
  486. MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
  487. #endif
  488. };
  489. const short da850_uart0_pins[] __initdata = {
  490. DA850_NUART0_CTS, DA850_NUART0_RTS, DA850_UART0_RXD, DA850_UART0_TXD,
  491. -1
  492. };
  493. const short da850_uart1_pins[] __initdata = {
  494. DA850_UART1_RXD, DA850_UART1_TXD,
  495. -1
  496. };
  497. const short da850_uart2_pins[] __initdata = {
  498. DA850_UART2_RXD, DA850_UART2_TXD,
  499. -1
  500. };
  501. const short da850_i2c0_pins[] __initdata = {
  502. DA850_I2C0_SDA, DA850_I2C0_SCL,
  503. -1
  504. };
  505. const short da850_i2c1_pins[] __initdata = {
  506. DA850_I2C1_SCL, DA850_I2C1_SDA,
  507. -1
  508. };
  509. const short da850_cpgmac_pins[] __initdata = {
  510. DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
  511. DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
  512. DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
  513. DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
  514. DA850_MDIO_D,
  515. -1
  516. };
  517. const short da850_rmii_pins[] __initdata = {
  518. DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
  519. DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
  520. DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
  521. DA850_MDIO_D,
  522. -1
  523. };
  524. const short da850_mcasp_pins[] __initdata = {
  525. DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
  526. DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
  527. DA850_AXR_11, DA850_AXR_12,
  528. -1
  529. };
  530. const short da850_lcdcntl_pins[] __initdata = {
  531. DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
  532. DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
  533. DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
  534. DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
  535. DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
  536. -1
  537. };
  538. const short da850_mmcsd0_pins[] __initdata = {
  539. DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
  540. DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
  541. DA850_GPIO4_0, DA850_GPIO4_1,
  542. -1
  543. };
  544. const short da850_nand_pins[] __initdata = {
  545. DA850_EMA_D_7, DA850_EMA_D_6, DA850_EMA_D_5, DA850_EMA_D_4,
  546. DA850_EMA_D_3, DA850_EMA_D_2, DA850_EMA_D_1, DA850_EMA_D_0,
  547. DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
  548. DA850_NEMA_WE, DA850_NEMA_OE,
  549. -1
  550. };
  551. const short da850_nor_pins[] __initdata = {
  552. DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
  553. DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1,
  554. DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5,
  555. DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9,
  556. DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13,
  557. DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1,
  558. DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5,
  559. DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9,
  560. DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13,
  561. DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17,
  562. DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21,
  563. DA850_EMA_A_22, DA850_EMA_A_23,
  564. -1
  565. };
  566. /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
  567. static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
  568. [IRQ_DA8XX_COMMTX] = 7,
  569. [IRQ_DA8XX_COMMRX] = 7,
  570. [IRQ_DA8XX_NINT] = 7,
  571. [IRQ_DA8XX_EVTOUT0] = 7,
  572. [IRQ_DA8XX_EVTOUT1] = 7,
  573. [IRQ_DA8XX_EVTOUT2] = 7,
  574. [IRQ_DA8XX_EVTOUT3] = 7,
  575. [IRQ_DA8XX_EVTOUT4] = 7,
  576. [IRQ_DA8XX_EVTOUT5] = 7,
  577. [IRQ_DA8XX_EVTOUT6] = 7,
  578. [IRQ_DA8XX_EVTOUT6] = 7,
  579. [IRQ_DA8XX_EVTOUT7] = 7,
  580. [IRQ_DA8XX_CCINT0] = 7,
  581. [IRQ_DA8XX_CCERRINT] = 7,
  582. [IRQ_DA8XX_TCERRINT0] = 7,
  583. [IRQ_DA8XX_AEMIFINT] = 7,
  584. [IRQ_DA8XX_I2CINT0] = 7,
  585. [IRQ_DA8XX_MMCSDINT0] = 7,
  586. [IRQ_DA8XX_MMCSDINT1] = 7,
  587. [IRQ_DA8XX_ALLINT0] = 7,
  588. [IRQ_DA8XX_RTC] = 7,
  589. [IRQ_DA8XX_SPINT0] = 7,
  590. [IRQ_DA8XX_TINT12_0] = 7,
  591. [IRQ_DA8XX_TINT34_0] = 7,
  592. [IRQ_DA8XX_TINT12_1] = 7,
  593. [IRQ_DA8XX_TINT34_1] = 7,
  594. [IRQ_DA8XX_UARTINT0] = 7,
  595. [IRQ_DA8XX_KEYMGRINT] = 7,
  596. [IRQ_DA8XX_SECINT] = 7,
  597. [IRQ_DA8XX_SECKEYERR] = 7,
  598. [IRQ_DA850_MPUADDRERR0] = 7,
  599. [IRQ_DA850_MPUPROTERR0] = 7,
  600. [IRQ_DA850_IOPUADDRERR0] = 7,
  601. [IRQ_DA850_IOPUPROTERR0] = 7,
  602. [IRQ_DA850_IOPUADDRERR1] = 7,
  603. [IRQ_DA850_IOPUPROTERR1] = 7,
  604. [IRQ_DA850_IOPUADDRERR2] = 7,
  605. [IRQ_DA850_IOPUPROTERR2] = 7,
  606. [IRQ_DA850_BOOTCFG_ADDR_ERR] = 7,
  607. [IRQ_DA850_BOOTCFG_PROT_ERR] = 7,
  608. [IRQ_DA850_MPUADDRERR1] = 7,
  609. [IRQ_DA850_MPUPROTERR1] = 7,
  610. [IRQ_DA850_IOPUADDRERR3] = 7,
  611. [IRQ_DA850_IOPUPROTERR3] = 7,
  612. [IRQ_DA850_IOPUADDRERR4] = 7,
  613. [IRQ_DA850_IOPUPROTERR4] = 7,
  614. [IRQ_DA850_IOPUADDRERR5] = 7,
  615. [IRQ_DA850_IOPUPROTERR5] = 7,
  616. [IRQ_DA850_MIOPU_BOOTCFG_ERR] = 7,
  617. [IRQ_DA8XX_CHIPINT0] = 7,
  618. [IRQ_DA8XX_CHIPINT1] = 7,
  619. [IRQ_DA8XX_CHIPINT2] = 7,
  620. [IRQ_DA8XX_CHIPINT3] = 7,
  621. [IRQ_DA8XX_TCERRINT1] = 7,
  622. [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7,
  623. [IRQ_DA8XX_C0_RX_PULSE] = 7,
  624. [IRQ_DA8XX_C0_TX_PULSE] = 7,
  625. [IRQ_DA8XX_C0_MISC_PULSE] = 7,
  626. [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7,
  627. [IRQ_DA8XX_C1_RX_PULSE] = 7,
  628. [IRQ_DA8XX_C1_TX_PULSE] = 7,
  629. [IRQ_DA8XX_C1_MISC_PULSE] = 7,
  630. [IRQ_DA8XX_MEMERR] = 7,
  631. [IRQ_DA8XX_GPIO0] = 7,
  632. [IRQ_DA8XX_GPIO1] = 7,
  633. [IRQ_DA8XX_GPIO2] = 7,
  634. [IRQ_DA8XX_GPIO3] = 7,
  635. [IRQ_DA8XX_GPIO4] = 7,
  636. [IRQ_DA8XX_GPIO5] = 7,
  637. [IRQ_DA8XX_GPIO6] = 7,
  638. [IRQ_DA8XX_GPIO7] = 7,
  639. [IRQ_DA8XX_GPIO8] = 7,
  640. [IRQ_DA8XX_I2CINT1] = 7,
  641. [IRQ_DA8XX_LCDINT] = 7,
  642. [IRQ_DA8XX_UARTINT1] = 7,
  643. [IRQ_DA8XX_MCASPINT] = 7,
  644. [IRQ_DA8XX_ALLINT1] = 7,
  645. [IRQ_DA8XX_SPINT1] = 7,
  646. [IRQ_DA8XX_UHPI_INT1] = 7,
  647. [IRQ_DA8XX_USB_INT] = 7,
  648. [IRQ_DA8XX_IRQN] = 7,
  649. [IRQ_DA8XX_RWAKEUP] = 7,
  650. [IRQ_DA8XX_UARTINT2] = 7,
  651. [IRQ_DA8XX_DFTSSINT] = 7,
  652. [IRQ_DA8XX_EHRPWM0] = 7,
  653. [IRQ_DA8XX_EHRPWM0TZ] = 7,
  654. [IRQ_DA8XX_EHRPWM1] = 7,
  655. [IRQ_DA8XX_EHRPWM1TZ] = 7,
  656. [IRQ_DA850_SATAINT] = 7,
  657. [IRQ_DA850_TINT12_2] = 7,
  658. [IRQ_DA850_TINT34_2] = 7,
  659. [IRQ_DA850_TINTALL_2] = 7,
  660. [IRQ_DA8XX_ECAP0] = 7,
  661. [IRQ_DA8XX_ECAP1] = 7,
  662. [IRQ_DA8XX_ECAP2] = 7,
  663. [IRQ_DA850_MMCSDINT0_1] = 7,
  664. [IRQ_DA850_MMCSDINT1_1] = 7,
  665. [IRQ_DA850_T12CMPINT0_2] = 7,
  666. [IRQ_DA850_T12CMPINT1_2] = 7,
  667. [IRQ_DA850_T12CMPINT2_2] = 7,
  668. [IRQ_DA850_T12CMPINT3_2] = 7,
  669. [IRQ_DA850_T12CMPINT4_2] = 7,
  670. [IRQ_DA850_T12CMPINT5_2] = 7,
  671. [IRQ_DA850_T12CMPINT6_2] = 7,
  672. [IRQ_DA850_T12CMPINT7_2] = 7,
  673. [IRQ_DA850_T12CMPINT0_3] = 7,
  674. [IRQ_DA850_T12CMPINT1_3] = 7,
  675. [IRQ_DA850_T12CMPINT2_3] = 7,
  676. [IRQ_DA850_T12CMPINT3_3] = 7,
  677. [IRQ_DA850_T12CMPINT4_3] = 7,
  678. [IRQ_DA850_T12CMPINT5_3] = 7,
  679. [IRQ_DA850_T12CMPINT6_3] = 7,
  680. [IRQ_DA850_T12CMPINT7_3] = 7,
  681. [IRQ_DA850_RPIINT] = 7,
  682. [IRQ_DA850_VPIFINT] = 7,
  683. [IRQ_DA850_CCINT1] = 7,
  684. [IRQ_DA850_CCERRINT1] = 7,
  685. [IRQ_DA850_TCERRINT2] = 7,
  686. [IRQ_DA850_TINT12_3] = 7,
  687. [IRQ_DA850_TINT34_3] = 7,
  688. [IRQ_DA850_TINTALL_3] = 7,
  689. [IRQ_DA850_MCBSP0RINT] = 7,
  690. [IRQ_DA850_MCBSP0XINT] = 7,
  691. [IRQ_DA850_MCBSP1RINT] = 7,
  692. [IRQ_DA850_MCBSP1XINT] = 7,
  693. [IRQ_DA8XX_ARMCLKSTOPREQ] = 7,
  694. };
  695. static struct map_desc da850_io_desc[] = {
  696. {
  697. .virtual = IO_VIRT,
  698. .pfn = __phys_to_pfn(IO_PHYS),
  699. .length = IO_SIZE,
  700. .type = MT_DEVICE
  701. },
  702. {
  703. .virtual = DA8XX_CP_INTC_VIRT,
  704. .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE),
  705. .length = DA8XX_CP_INTC_SIZE,
  706. .type = MT_DEVICE
  707. },
  708. {
  709. .virtual = SRAM_VIRT,
  710. .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
  711. .length = SZ_8K,
  712. .type = MT_DEVICE
  713. },
  714. };
  715. static void __iomem *da850_psc_bases[] = {
  716. IO_ADDRESS(DA8XX_PSC0_BASE),
  717. IO_ADDRESS(DA8XX_PSC1_BASE),
  718. };
  719. /* Contents of JTAG ID register used to identify exact cpu type */
  720. static struct davinci_id da850_ids[] = {
  721. {
  722. .variant = 0x0,
  723. .part_no = 0xb7d1,
  724. .manufacturer = 0x017, /* 0x02f >> 1 */
  725. .cpu_id = DAVINCI_CPU_ID_DA850,
  726. .name = "da850/omap-l138",
  727. },
  728. };
  729. static struct davinci_timer_instance da850_timer_instance[4] = {
  730. {
  731. .base = IO_ADDRESS(DA8XX_TIMER64P0_BASE),
  732. .bottom_irq = IRQ_DA8XX_TINT12_0,
  733. .top_irq = IRQ_DA8XX_TINT34_0,
  734. },
  735. {
  736. .base = IO_ADDRESS(DA8XX_TIMER64P1_BASE),
  737. .bottom_irq = IRQ_DA8XX_TINT12_1,
  738. .top_irq = IRQ_DA8XX_TINT34_1,
  739. },
  740. {
  741. .base = IO_ADDRESS(DA850_TIMER64P2_BASE),
  742. .bottom_irq = IRQ_DA850_TINT12_2,
  743. .top_irq = IRQ_DA850_TINT34_2,
  744. },
  745. {
  746. .base = IO_ADDRESS(DA850_TIMER64P3_BASE),
  747. .bottom_irq = IRQ_DA850_TINT12_3,
  748. .top_irq = IRQ_DA850_TINT34_3,
  749. },
  750. };
  751. /*
  752. * T0_BOT: Timer 0, bottom : Used for clock_event
  753. * T0_TOP: Timer 0, top : Used for clocksource
  754. * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
  755. */
  756. static struct davinci_timer_info da850_timer_info = {
  757. .timers = da850_timer_instance,
  758. .clockevent_id = T0_BOT,
  759. .clocksource_id = T0_TOP,
  760. };
  761. static void da850_set_async3_src(int pllnum)
  762. {
  763. struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
  764. struct davinci_clk *c;
  765. unsigned int v;
  766. int ret;
  767. for (c = da850_clks; c->lk.clk; c++) {
  768. clk = c->lk.clk;
  769. if (clk->flags & DA850_CLK_ASYNC3) {
  770. ret = clk_set_parent(clk, newparent);
  771. WARN(ret, "DA850: unable to re-parent clock %s",
  772. clk->name);
  773. }
  774. }
  775. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  776. if (pllnum)
  777. v |= CFGCHIP3_ASYNC3_CLKSRC;
  778. else
  779. v &= ~CFGCHIP3_ASYNC3_CLKSRC;
  780. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  781. }
  782. #ifdef CONFIG_CPU_FREQ
  783. /*
  784. * Notes:
  785. * According to the TRM, minimum PLLM results in maximum power savings.
  786. * The OPP definitions below should keep the PLLM as low as possible.
  787. *
  788. * The output of the PLLM must be between 400 to 600 MHz.
  789. * This rules out prediv of anything but divide-by-one for 24Mhz OSC input.
  790. */
  791. struct da850_opp {
  792. unsigned int freq; /* in KHz */
  793. unsigned int prediv;
  794. unsigned int mult;
  795. unsigned int postdiv;
  796. unsigned int cvdd_min; /* in uV */
  797. unsigned int cvdd_max; /* in uV */
  798. };
  799. static const struct da850_opp da850_opp_300 = {
  800. .freq = 300000,
  801. .prediv = 1,
  802. .mult = 25,
  803. .postdiv = 2,
  804. .cvdd_min = 1140000,
  805. .cvdd_max = 1320000,
  806. };
  807. static const struct da850_opp da850_opp_200 = {
  808. .freq = 200000,
  809. .prediv = 1,
  810. .mult = 25,
  811. .postdiv = 3,
  812. .cvdd_min = 1050000,
  813. .cvdd_max = 1160000,
  814. };
  815. static const struct da850_opp da850_opp_96 = {
  816. .freq = 96000,
  817. .prediv = 1,
  818. .mult = 20,
  819. .postdiv = 5,
  820. .cvdd_min = 950000,
  821. .cvdd_max = 1050000,
  822. };
  823. #define OPP(freq) \
  824. { \
  825. .index = (unsigned int) &da850_opp_##freq, \
  826. .frequency = freq * 1000, \
  827. }
  828. static struct cpufreq_frequency_table da850_freq_table[] = {
  829. OPP(300),
  830. OPP(200),
  831. OPP(96),
  832. {
  833. .index = 0,
  834. .frequency = CPUFREQ_TABLE_END,
  835. },
  836. };
  837. #ifdef CONFIG_REGULATOR
  838. static struct regulator *cvdd;
  839. static int da850_set_voltage(unsigned int index)
  840. {
  841. struct da850_opp *opp;
  842. if (!cvdd)
  843. return -ENODEV;
  844. opp = (struct da850_opp *) da850_freq_table[index].index;
  845. return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
  846. }
  847. static int da850_regulator_init(void)
  848. {
  849. cvdd = regulator_get(NULL, "cvdd");
  850. if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
  851. " voltage scaling unsupported\n")) {
  852. return PTR_ERR(cvdd);
  853. }
  854. return 0;
  855. }
  856. #endif
  857. static struct davinci_cpufreq_config cpufreq_info = {
  858. .freq_table = &da850_freq_table[0],
  859. #ifdef CONFIG_REGULATOR
  860. .init = da850_regulator_init,
  861. .set_voltage = da850_set_voltage,
  862. #endif
  863. };
  864. static struct platform_device da850_cpufreq_device = {
  865. .name = "cpufreq-davinci",
  866. .dev = {
  867. .platform_data = &cpufreq_info,
  868. },
  869. };
  870. int __init da850_register_cpufreq(void)
  871. {
  872. return platform_device_register(&da850_cpufreq_device);
  873. }
  874. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  875. {
  876. int i, ret = 0, diff;
  877. unsigned int best = (unsigned int) -1;
  878. rate /= 1000; /* convert to kHz */
  879. for (i = 0; da850_freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
  880. diff = da850_freq_table[i].frequency - rate;
  881. if (diff < 0)
  882. diff = -diff;
  883. if (diff < best) {
  884. best = diff;
  885. ret = da850_freq_table[i].frequency;
  886. }
  887. }
  888. return ret * 1000;
  889. }
  890. static int da850_set_armrate(struct clk *clk, unsigned long index)
  891. {
  892. struct clk *pllclk = &pll0_clk;
  893. return clk_set_rate(pllclk, index);
  894. }
  895. static int da850_set_pll0rate(struct clk *clk, unsigned long index)
  896. {
  897. unsigned int prediv, mult, postdiv;
  898. struct da850_opp *opp;
  899. struct pll_data *pll = clk->pll_data;
  900. int ret;
  901. opp = (struct da850_opp *) da850_freq_table[index].index;
  902. prediv = opp->prediv;
  903. mult = opp->mult;
  904. postdiv = opp->postdiv;
  905. ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
  906. if (WARN_ON(ret))
  907. return ret;
  908. return 0;
  909. }
  910. #else
  911. int __init da850_register_cpufreq(void)
  912. {
  913. return 0;
  914. }
  915. static int da850_set_armrate(struct clk *clk, unsigned long rate)
  916. {
  917. return -EINVAL;
  918. }
  919. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
  920. {
  921. return -EINVAL;
  922. }
  923. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  924. {
  925. return clk->rate;
  926. }
  927. #endif
  928. static struct davinci_soc_info davinci_soc_info_da850 = {
  929. .io_desc = da850_io_desc,
  930. .io_desc_num = ARRAY_SIZE(da850_io_desc),
  931. .ids = da850_ids,
  932. .ids_num = ARRAY_SIZE(da850_ids),
  933. .cpu_clks = da850_clks,
  934. .psc_bases = da850_psc_bases,
  935. .psc_bases_num = ARRAY_SIZE(da850_psc_bases),
  936. .pinmux_pins = da850_pins,
  937. .pinmux_pins_num = ARRAY_SIZE(da850_pins),
  938. .intc_base = (void __iomem *)DA8XX_CP_INTC_VIRT,
  939. .intc_type = DAVINCI_INTC_TYPE_CP_INTC,
  940. .intc_irq_prios = da850_default_priorities,
  941. .intc_irq_num = DA850_N_CP_INTC_IRQ,
  942. .timer_info = &da850_timer_info,
  943. .gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE),
  944. .gpio_num = 144,
  945. .gpio_irq = IRQ_DA8XX_GPIO0,
  946. .serial_dev = &da8xx_serial_device,
  947. .emac_pdata = &da8xx_emac_pdata,
  948. .sram_dma = DA8XX_ARM_RAM_BASE,
  949. .sram_len = SZ_8K,
  950. };
  951. void __init da850_init(void)
  952. {
  953. unsigned int v;
  954. da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
  955. if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
  956. return;
  957. da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
  958. if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
  959. return;
  960. davinci_soc_info_da850.jtag_id_base =
  961. DA8XX_SYSCFG0_VIRT(DA8XX_JTAG_ID_REG);
  962. davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG0_VIRT(0x120);
  963. davinci_common_init(&davinci_soc_info_da850);
  964. /*
  965. * Move the clock source of Async3 domain to PLL1 SYSCLK2.
  966. * This helps keeping the peripherals on this domain insulated
  967. * from CPU frequency changes caused by DVFS. The firmware sets
  968. * both PLL0 and PLL1 to the same frequency so, there should not
  969. * be any noticible change even in non-DVFS use cases.
  970. */
  971. da850_set_async3_src(1);
  972. /* Unlock writing to PLL0 registers */
  973. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
  974. v &= ~CFGCHIP0_PLL_MASTER_LOCK;
  975. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
  976. /* Unlock writing to PLL1 registers */
  977. v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  978. v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
  979. __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
  980. }