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 CFGCHIP0_PLL_MASTER_LOCK BIT(4)
  37. static int da850_set_armrate(struct clk *clk, unsigned long rate);
  38. static int da850_round_armrate(struct clk *clk, unsigned long rate);
  39. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);
  40. static struct pll_data pll0_data = {
  41. .num = 1,
  42. .phys_base = DA8XX_PLL0_BASE,
  43. .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV,
  44. };
  45. static struct clk ref_clk = {
  46. .name = "ref_clk",
  47. .rate = DA850_REF_FREQ,
  48. };
  49. static struct clk pll0_clk = {
  50. .name = "pll0",
  51. .parent = &ref_clk,
  52. .pll_data = &pll0_data,
  53. .flags = CLK_PLL,
  54. .set_rate = da850_set_pll0rate,
  55. };
  56. static struct clk pll0_aux_clk = {
  57. .name = "pll0_aux_clk",
  58. .parent = &pll0_clk,
  59. .flags = CLK_PLL | PRE_PLL,
  60. };
  61. static struct clk pll0_sysclk2 = {
  62. .name = "pll0_sysclk2",
  63. .parent = &pll0_clk,
  64. .flags = CLK_PLL,
  65. .div_reg = PLLDIV2,
  66. };
  67. static struct clk pll0_sysclk3 = {
  68. .name = "pll0_sysclk3",
  69. .parent = &pll0_clk,
  70. .flags = CLK_PLL,
  71. .div_reg = PLLDIV3,
  72. };
  73. static struct clk pll0_sysclk4 = {
  74. .name = "pll0_sysclk4",
  75. .parent = &pll0_clk,
  76. .flags = CLK_PLL,
  77. .div_reg = PLLDIV4,
  78. };
  79. static struct clk pll0_sysclk5 = {
  80. .name = "pll0_sysclk5",
  81. .parent = &pll0_clk,
  82. .flags = CLK_PLL,
  83. .div_reg = PLLDIV5,
  84. };
  85. static struct clk pll0_sysclk6 = {
  86. .name = "pll0_sysclk6",
  87. .parent = &pll0_clk,
  88. .flags = CLK_PLL,
  89. .div_reg = PLLDIV6,
  90. };
  91. static struct clk pll0_sysclk7 = {
  92. .name = "pll0_sysclk7",
  93. .parent = &pll0_clk,
  94. .flags = CLK_PLL,
  95. .div_reg = PLLDIV7,
  96. };
  97. static struct pll_data pll1_data = {
  98. .num = 2,
  99. .phys_base = DA850_PLL1_BASE,
  100. .flags = PLL_HAS_POSTDIV,
  101. };
  102. static struct clk pll1_clk = {
  103. .name = "pll1",
  104. .parent = &ref_clk,
  105. .pll_data = &pll1_data,
  106. .flags = CLK_PLL,
  107. };
  108. static struct clk pll1_aux_clk = {
  109. .name = "pll1_aux_clk",
  110. .parent = &pll1_clk,
  111. .flags = CLK_PLL | PRE_PLL,
  112. };
  113. static struct clk pll1_sysclk2 = {
  114. .name = "pll1_sysclk2",
  115. .parent = &pll1_clk,
  116. .flags = CLK_PLL,
  117. .div_reg = PLLDIV2,
  118. };
  119. static struct clk pll1_sysclk3 = {
  120. .name = "pll1_sysclk3",
  121. .parent = &pll1_clk,
  122. .flags = CLK_PLL,
  123. .div_reg = PLLDIV3,
  124. };
  125. static struct clk pll1_sysclk4 = {
  126. .name = "pll1_sysclk4",
  127. .parent = &pll1_clk,
  128. .flags = CLK_PLL,
  129. .div_reg = PLLDIV4,
  130. };
  131. static struct clk pll1_sysclk5 = {
  132. .name = "pll1_sysclk5",
  133. .parent = &pll1_clk,
  134. .flags = CLK_PLL,
  135. .div_reg = PLLDIV5,
  136. };
  137. static struct clk pll1_sysclk6 = {
  138. .name = "pll0_sysclk6",
  139. .parent = &pll0_clk,
  140. .flags = CLK_PLL,
  141. .div_reg = PLLDIV6,
  142. };
  143. static struct clk pll1_sysclk7 = {
  144. .name = "pll1_sysclk7",
  145. .parent = &pll1_clk,
  146. .flags = CLK_PLL,
  147. .div_reg = PLLDIV7,
  148. };
  149. static struct clk i2c0_clk = {
  150. .name = "i2c0",
  151. .parent = &pll0_aux_clk,
  152. };
  153. static struct clk timerp64_0_clk = {
  154. .name = "timer0",
  155. .parent = &pll0_aux_clk,
  156. };
  157. static struct clk timerp64_1_clk = {
  158. .name = "timer1",
  159. .parent = &pll0_aux_clk,
  160. };
  161. static struct clk arm_rom_clk = {
  162. .name = "arm_rom",
  163. .parent = &pll0_sysclk2,
  164. .lpsc = DA8XX_LPSC0_ARM_RAM_ROM,
  165. .flags = ALWAYS_ENABLED,
  166. };
  167. static struct clk tpcc0_clk = {
  168. .name = "tpcc0",
  169. .parent = &pll0_sysclk2,
  170. .lpsc = DA8XX_LPSC0_TPCC,
  171. .flags = ALWAYS_ENABLED | CLK_PSC,
  172. };
  173. static struct clk tptc0_clk = {
  174. .name = "tptc0",
  175. .parent = &pll0_sysclk2,
  176. .lpsc = DA8XX_LPSC0_TPTC0,
  177. .flags = ALWAYS_ENABLED,
  178. };
  179. static struct clk tptc1_clk = {
  180. .name = "tptc1",
  181. .parent = &pll0_sysclk2,
  182. .lpsc = DA8XX_LPSC0_TPTC1,
  183. .flags = ALWAYS_ENABLED,
  184. };
  185. static struct clk tpcc1_clk = {
  186. .name = "tpcc1",
  187. .parent = &pll0_sysclk2,
  188. .lpsc = DA850_LPSC1_TPCC1,
  189. .gpsc = 1,
  190. .flags = CLK_PSC | ALWAYS_ENABLED,
  191. };
  192. static struct clk tptc2_clk = {
  193. .name = "tptc2",
  194. .parent = &pll0_sysclk2,
  195. .lpsc = DA850_LPSC1_TPTC2,
  196. .gpsc = 1,
  197. .flags = ALWAYS_ENABLED,
  198. };
  199. static struct clk uart0_clk = {
  200. .name = "uart0",
  201. .parent = &pll0_sysclk2,
  202. .lpsc = DA8XX_LPSC0_UART0,
  203. };
  204. static struct clk uart1_clk = {
  205. .name = "uart1",
  206. .parent = &pll0_sysclk2,
  207. .lpsc = DA8XX_LPSC1_UART1,
  208. .gpsc = 1,
  209. .flags = DA850_CLK_ASYNC3,
  210. };
  211. static struct clk uart2_clk = {
  212. .name = "uart2",
  213. .parent = &pll0_sysclk2,
  214. .lpsc = DA8XX_LPSC1_UART2,
  215. .gpsc = 1,
  216. .flags = DA850_CLK_ASYNC3,
  217. };
  218. static struct clk aintc_clk = {
  219. .name = "aintc",
  220. .parent = &pll0_sysclk4,
  221. .lpsc = DA8XX_LPSC0_AINTC,
  222. .flags = ALWAYS_ENABLED,
  223. };
  224. static struct clk gpio_clk = {
  225. .name = "gpio",
  226. .parent = &pll0_sysclk4,
  227. .lpsc = DA8XX_LPSC1_GPIO,
  228. .gpsc = 1,
  229. };
  230. static struct clk i2c1_clk = {
  231. .name = "i2c1",
  232. .parent = &pll0_sysclk4,
  233. .lpsc = DA8XX_LPSC1_I2C,
  234. .gpsc = 1,
  235. };
  236. static struct clk emif3_clk = {
  237. .name = "emif3",
  238. .parent = &pll0_sysclk5,
  239. .lpsc = DA8XX_LPSC1_EMIF3C,
  240. .gpsc = 1,
  241. .flags = ALWAYS_ENABLED,
  242. };
  243. static struct clk arm_clk = {
  244. .name = "arm",
  245. .parent = &pll0_sysclk6,
  246. .lpsc = DA8XX_LPSC0_ARM,
  247. .flags = ALWAYS_ENABLED,
  248. .set_rate = da850_set_armrate,
  249. .round_rate = da850_round_armrate,
  250. };
  251. static struct clk rmii_clk = {
  252. .name = "rmii",
  253. .parent = &pll0_sysclk7,
  254. };
  255. static struct clk emac_clk = {
  256. .name = "emac",
  257. .parent = &pll0_sysclk4,
  258. .lpsc = DA8XX_LPSC1_CPGMAC,
  259. .gpsc = 1,
  260. };
  261. static struct clk mcasp_clk = {
  262. .name = "mcasp",
  263. .parent = &pll0_sysclk2,
  264. .lpsc = DA8XX_LPSC1_McASP0,
  265. .gpsc = 1,
  266. .flags = DA850_CLK_ASYNC3,
  267. };
  268. static struct clk lcdc_clk = {
  269. .name = "lcdc",
  270. .parent = &pll0_sysclk2,
  271. .lpsc = DA8XX_LPSC1_LCDC,
  272. .gpsc = 1,
  273. };
  274. static struct clk mmcsd_clk = {
  275. .name = "mmcsd",
  276. .parent = &pll0_sysclk2,
  277. .lpsc = DA8XX_LPSC0_MMC_SD,
  278. };
  279. static struct clk aemif_clk = {
  280. .name = "aemif",
  281. .parent = &pll0_sysclk3,
  282. .lpsc = DA8XX_LPSC0_EMIF25,
  283. .flags = ALWAYS_ENABLED,
  284. };
  285. static struct davinci_clk da850_clks[] = {
  286. CLK(NULL, "ref", &ref_clk),
  287. CLK(NULL, "pll0", &pll0_clk),
  288. CLK(NULL, "pll0_aux", &pll0_aux_clk),
  289. CLK(NULL, "pll0_sysclk2", &pll0_sysclk2),
  290. CLK(NULL, "pll0_sysclk3", &pll0_sysclk3),
  291. CLK(NULL, "pll0_sysclk4", &pll0_sysclk4),
  292. CLK(NULL, "pll0_sysclk5", &pll0_sysclk5),
  293. CLK(NULL, "pll0_sysclk6", &pll0_sysclk6),
  294. CLK(NULL, "pll0_sysclk7", &pll0_sysclk7),
  295. CLK(NULL, "pll1", &pll1_clk),
  296. CLK(NULL, "pll1_aux", &pll1_aux_clk),
  297. CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
  298. CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
  299. CLK(NULL, "pll1_sysclk4", &pll1_sysclk4),
  300. CLK(NULL, "pll1_sysclk5", &pll1_sysclk5),
  301. CLK(NULL, "pll1_sysclk6", &pll1_sysclk6),
  302. CLK(NULL, "pll1_sysclk7", &pll1_sysclk7),
  303. CLK("i2c_davinci.1", NULL, &i2c0_clk),
  304. CLK(NULL, "timer0", &timerp64_0_clk),
  305. CLK("watchdog", NULL, &timerp64_1_clk),
  306. CLK(NULL, "arm_rom", &arm_rom_clk),
  307. CLK(NULL, "tpcc0", &tpcc0_clk),
  308. CLK(NULL, "tptc0", &tptc0_clk),
  309. CLK(NULL, "tptc1", &tptc1_clk),
  310. CLK(NULL, "tpcc1", &tpcc1_clk),
  311. CLK(NULL, "tptc2", &tptc2_clk),
  312. CLK(NULL, "uart0", &uart0_clk),
  313. CLK(NULL, "uart1", &uart1_clk),
  314. CLK(NULL, "uart2", &uart2_clk),
  315. CLK(NULL, "aintc", &aintc_clk),
  316. CLK(NULL, "gpio", &gpio_clk),
  317. CLK("i2c_davinci.2", NULL, &i2c1_clk),
  318. CLK(NULL, "emif3", &emif3_clk),
  319. CLK(NULL, "arm", &arm_clk),
  320. CLK(NULL, "rmii", &rmii_clk),
  321. CLK("davinci_emac.1", NULL, &emac_clk),
  322. CLK("davinci-mcasp.0", NULL, &mcasp_clk),
  323. CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
  324. CLK("davinci_mmc.0", NULL, &mmcsd_clk),
  325. CLK(NULL, "aemif", &aemif_clk),
  326. CLK(NULL, NULL, NULL),
  327. };
  328. /*
  329. * Device specific mux setup
  330. *
  331. * soc description mux mode mode mux dbg
  332. * reg offset mask mode
  333. */
  334. static const struct mux_config da850_pins[] = {
  335. #ifdef CONFIG_DAVINCI_MUX
  336. /* UART0 function */
  337. MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false)
  338. MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false)
  339. MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false)
  340. MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false)
  341. /* UART1 function */
  342. MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false)
  343. MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false)
  344. /* UART2 function */
  345. MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false)
  346. MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false)
  347. /* I2C1 function */
  348. MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false)
  349. MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false)
  350. /* I2C0 function */
  351. MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false)
  352. MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false)
  353. /* EMAC function */
  354. MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false)
  355. MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false)
  356. MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false)
  357. MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false)
  358. MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false)
  359. MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false)
  360. MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false)
  361. MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false)
  362. MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false)
  363. MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false)
  364. MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false)
  365. MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false)
  366. MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false)
  367. MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false)
  368. MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
  369. MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
  370. MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
  371. MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false)
  372. MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false)
  373. MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false)
  374. MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false)
  375. MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false)
  376. MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false)
  377. MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false)
  378. MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false)
  379. /* McASP function */
  380. MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
  381. MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
  382. MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
  383. MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
  384. MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
  385. MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
  386. MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
  387. MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
  388. MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
  389. MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
  390. MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
  391. MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
  392. MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
  393. MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
  394. MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
  395. MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
  396. MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
  397. MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
  398. MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
  399. MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
  400. MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
  401. MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
  402. MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
  403. /* LCD function */
  404. MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
  405. MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
  406. MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
  407. MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
  408. MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
  409. MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
  410. MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
  411. MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
  412. MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
  413. MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
  414. MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
  415. MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
  416. MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
  417. MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
  418. MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
  419. MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
  420. MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
  421. MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
  422. MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
  423. MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
  424. /* MMC/SD0 function */
  425. MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
  426. MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
  427. MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
  428. MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
  429. MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
  430. MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
  431. /* EMIF2.5/EMIFA function */
  432. MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
  433. MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
  434. MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
  435. MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
  436. MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
  437. MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
  438. MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
  439. MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
  440. MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
  441. MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
  442. MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
  443. MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
  444. MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
  445. MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
  446. MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false)
  447. MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false)
  448. MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false)
  449. MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false)
  450. MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false)
  451. MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false)
  452. MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false)
  453. MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false)
  454. MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false)
  455. MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false)
  456. MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false)
  457. MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false)
  458. MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false)
  459. MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false)
  460. MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false)
  461. MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false)
  462. MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false)
  463. MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false)
  464. MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false)
  465. MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false)
  466. MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false)
  467. MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false)
  468. MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false)
  469. MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false)
  470. MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false)
  471. MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false)
  472. MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false)
  473. MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false)
  474. MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false)
  475. MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false)
  476. MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false)
  477. MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false)
  478. MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false)
  479. MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false)
  480. /* GPIO function */
  481. MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false)
  482. MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false)
  483. MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
  484. MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
  485. MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
  486. #endif
  487. };
  488. const short da850_uart0_pins[] __initdata = {
  489. DA850_NUART0_CTS, DA850_NUART0_RTS, DA850_UART0_RXD, DA850_UART0_TXD,
  490. -1
  491. };
  492. const short da850_uart1_pins[] __initdata = {
  493. DA850_UART1_RXD, DA850_UART1_TXD,
  494. -1
  495. };
  496. const short da850_uart2_pins[] __initdata = {
  497. DA850_UART2_RXD, DA850_UART2_TXD,
  498. -1
  499. };
  500. const short da850_i2c0_pins[] __initdata = {
  501. DA850_I2C0_SDA, DA850_I2C0_SCL,
  502. -1
  503. };
  504. const short da850_i2c1_pins[] __initdata = {
  505. DA850_I2C1_SCL, DA850_I2C1_SDA,
  506. -1
  507. };
  508. const short da850_cpgmac_pins[] __initdata = {
  509. DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
  510. DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
  511. DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
  512. DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
  513. DA850_MDIO_D,
  514. -1
  515. };
  516. const short da850_rmii_pins[] __initdata = {
  517. DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
  518. DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
  519. DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
  520. DA850_MDIO_D,
  521. -1
  522. };
  523. const short da850_mcasp_pins[] __initdata = {
  524. DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
  525. DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
  526. DA850_AXR_11, DA850_AXR_12,
  527. -1
  528. };
  529. const short da850_lcdcntl_pins[] __initdata = {
  530. DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
  531. DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
  532. DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
  533. DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
  534. DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
  535. -1
  536. };
  537. const short da850_mmcsd0_pins[] __initdata = {
  538. DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
  539. DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
  540. DA850_GPIO4_0, DA850_GPIO4_1,
  541. -1
  542. };
  543. const short da850_nand_pins[] __initdata = {
  544. DA850_EMA_D_7, DA850_EMA_D_6, DA850_EMA_D_5, DA850_EMA_D_4,
  545. DA850_EMA_D_3, DA850_EMA_D_2, DA850_EMA_D_1, DA850_EMA_D_0,
  546. DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
  547. DA850_NEMA_WE, DA850_NEMA_OE,
  548. -1
  549. };
  550. const short da850_nor_pins[] __initdata = {
  551. DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
  552. DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1,
  553. DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5,
  554. DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9,
  555. DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13,
  556. DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1,
  557. DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5,
  558. DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9,
  559. DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13,
  560. DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17,
  561. DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21,
  562. DA850_EMA_A_22, DA850_EMA_A_23,
  563. -1
  564. };
  565. /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
  566. static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
  567. [IRQ_DA8XX_COMMTX] = 7,
  568. [IRQ_DA8XX_COMMRX] = 7,
  569. [IRQ_DA8XX_NINT] = 7,
  570. [IRQ_DA8XX_EVTOUT0] = 7,
  571. [IRQ_DA8XX_EVTOUT1] = 7,
  572. [IRQ_DA8XX_EVTOUT2] = 7,
  573. [IRQ_DA8XX_EVTOUT3] = 7,
  574. [IRQ_DA8XX_EVTOUT4] = 7,
  575. [IRQ_DA8XX_EVTOUT5] = 7,
  576. [IRQ_DA8XX_EVTOUT6] = 7,
  577. [IRQ_DA8XX_EVTOUT6] = 7,
  578. [IRQ_DA8XX_EVTOUT7] = 7,
  579. [IRQ_DA8XX_CCINT0] = 7,
  580. [IRQ_DA8XX_CCERRINT] = 7,
  581. [IRQ_DA8XX_TCERRINT0] = 7,
  582. [IRQ_DA8XX_AEMIFINT] = 7,
  583. [IRQ_DA8XX_I2CINT0] = 7,
  584. [IRQ_DA8XX_MMCSDINT0] = 7,
  585. [IRQ_DA8XX_MMCSDINT1] = 7,
  586. [IRQ_DA8XX_ALLINT0] = 7,
  587. [IRQ_DA8XX_RTC] = 7,
  588. [IRQ_DA8XX_SPINT0] = 7,
  589. [IRQ_DA8XX_TINT12_0] = 7,
  590. [IRQ_DA8XX_TINT34_0] = 7,
  591. [IRQ_DA8XX_TINT12_1] = 7,
  592. [IRQ_DA8XX_TINT34_1] = 7,
  593. [IRQ_DA8XX_UARTINT0] = 7,
  594. [IRQ_DA8XX_KEYMGRINT] = 7,
  595. [IRQ_DA8XX_SECINT] = 7,
  596. [IRQ_DA8XX_SECKEYERR] = 7,
  597. [IRQ_DA850_MPUADDRERR0] = 7,
  598. [IRQ_DA850_MPUPROTERR0] = 7,
  599. [IRQ_DA850_IOPUADDRERR0] = 7,
  600. [IRQ_DA850_IOPUPROTERR0] = 7,
  601. [IRQ_DA850_IOPUADDRERR1] = 7,
  602. [IRQ_DA850_IOPUPROTERR1] = 7,
  603. [IRQ_DA850_IOPUADDRERR2] = 7,
  604. [IRQ_DA850_IOPUPROTERR2] = 7,
  605. [IRQ_DA850_BOOTCFG_ADDR_ERR] = 7,
  606. [IRQ_DA850_BOOTCFG_PROT_ERR] = 7,
  607. [IRQ_DA850_MPUADDRERR1] = 7,
  608. [IRQ_DA850_MPUPROTERR1] = 7,
  609. [IRQ_DA850_IOPUADDRERR3] = 7,
  610. [IRQ_DA850_IOPUPROTERR3] = 7,
  611. [IRQ_DA850_IOPUADDRERR4] = 7,
  612. [IRQ_DA850_IOPUPROTERR4] = 7,
  613. [IRQ_DA850_IOPUADDRERR5] = 7,
  614. [IRQ_DA850_IOPUPROTERR5] = 7,
  615. [IRQ_DA850_MIOPU_BOOTCFG_ERR] = 7,
  616. [IRQ_DA8XX_CHIPINT0] = 7,
  617. [IRQ_DA8XX_CHIPINT1] = 7,
  618. [IRQ_DA8XX_CHIPINT2] = 7,
  619. [IRQ_DA8XX_CHIPINT3] = 7,
  620. [IRQ_DA8XX_TCERRINT1] = 7,
  621. [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7,
  622. [IRQ_DA8XX_C0_RX_PULSE] = 7,
  623. [IRQ_DA8XX_C0_TX_PULSE] = 7,
  624. [IRQ_DA8XX_C0_MISC_PULSE] = 7,
  625. [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7,
  626. [IRQ_DA8XX_C1_RX_PULSE] = 7,
  627. [IRQ_DA8XX_C1_TX_PULSE] = 7,
  628. [IRQ_DA8XX_C1_MISC_PULSE] = 7,
  629. [IRQ_DA8XX_MEMERR] = 7,
  630. [IRQ_DA8XX_GPIO0] = 7,
  631. [IRQ_DA8XX_GPIO1] = 7,
  632. [IRQ_DA8XX_GPIO2] = 7,
  633. [IRQ_DA8XX_GPIO3] = 7,
  634. [IRQ_DA8XX_GPIO4] = 7,
  635. [IRQ_DA8XX_GPIO5] = 7,
  636. [IRQ_DA8XX_GPIO6] = 7,
  637. [IRQ_DA8XX_GPIO7] = 7,
  638. [IRQ_DA8XX_GPIO8] = 7,
  639. [IRQ_DA8XX_I2CINT1] = 7,
  640. [IRQ_DA8XX_LCDINT] = 7,
  641. [IRQ_DA8XX_UARTINT1] = 7,
  642. [IRQ_DA8XX_MCASPINT] = 7,
  643. [IRQ_DA8XX_ALLINT1] = 7,
  644. [IRQ_DA8XX_SPINT1] = 7,
  645. [IRQ_DA8XX_UHPI_INT1] = 7,
  646. [IRQ_DA8XX_USB_INT] = 7,
  647. [IRQ_DA8XX_IRQN] = 7,
  648. [IRQ_DA8XX_RWAKEUP] = 7,
  649. [IRQ_DA8XX_UARTINT2] = 7,
  650. [IRQ_DA8XX_DFTSSINT] = 7,
  651. [IRQ_DA8XX_EHRPWM0] = 7,
  652. [IRQ_DA8XX_EHRPWM0TZ] = 7,
  653. [IRQ_DA8XX_EHRPWM1] = 7,
  654. [IRQ_DA8XX_EHRPWM1TZ] = 7,
  655. [IRQ_DA850_SATAINT] = 7,
  656. [IRQ_DA850_TINT12_2] = 7,
  657. [IRQ_DA850_TINT34_2] = 7,
  658. [IRQ_DA850_TINTALL_2] = 7,
  659. [IRQ_DA8XX_ECAP0] = 7,
  660. [IRQ_DA8XX_ECAP1] = 7,
  661. [IRQ_DA8XX_ECAP2] = 7,
  662. [IRQ_DA850_MMCSDINT0_1] = 7,
  663. [IRQ_DA850_MMCSDINT1_1] = 7,
  664. [IRQ_DA850_T12CMPINT0_2] = 7,
  665. [IRQ_DA850_T12CMPINT1_2] = 7,
  666. [IRQ_DA850_T12CMPINT2_2] = 7,
  667. [IRQ_DA850_T12CMPINT3_2] = 7,
  668. [IRQ_DA850_T12CMPINT4_2] = 7,
  669. [IRQ_DA850_T12CMPINT5_2] = 7,
  670. [IRQ_DA850_T12CMPINT6_2] = 7,
  671. [IRQ_DA850_T12CMPINT7_2] = 7,
  672. [IRQ_DA850_T12CMPINT0_3] = 7,
  673. [IRQ_DA850_T12CMPINT1_3] = 7,
  674. [IRQ_DA850_T12CMPINT2_3] = 7,
  675. [IRQ_DA850_T12CMPINT3_3] = 7,
  676. [IRQ_DA850_T12CMPINT4_3] = 7,
  677. [IRQ_DA850_T12CMPINT5_3] = 7,
  678. [IRQ_DA850_T12CMPINT6_3] = 7,
  679. [IRQ_DA850_T12CMPINT7_3] = 7,
  680. [IRQ_DA850_RPIINT] = 7,
  681. [IRQ_DA850_VPIFINT] = 7,
  682. [IRQ_DA850_CCINT1] = 7,
  683. [IRQ_DA850_CCERRINT1] = 7,
  684. [IRQ_DA850_TCERRINT2] = 7,
  685. [IRQ_DA850_TINT12_3] = 7,
  686. [IRQ_DA850_TINT34_3] = 7,
  687. [IRQ_DA850_TINTALL_3] = 7,
  688. [IRQ_DA850_MCBSP0RINT] = 7,
  689. [IRQ_DA850_MCBSP0XINT] = 7,
  690. [IRQ_DA850_MCBSP1RINT] = 7,
  691. [IRQ_DA850_MCBSP1XINT] = 7,
  692. [IRQ_DA8XX_ARMCLKSTOPREQ] = 7,
  693. };
  694. static struct map_desc da850_io_desc[] = {
  695. {
  696. .virtual = IO_VIRT,
  697. .pfn = __phys_to_pfn(IO_PHYS),
  698. .length = IO_SIZE,
  699. .type = MT_DEVICE
  700. },
  701. {
  702. .virtual = DA8XX_CP_INTC_VIRT,
  703. .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE),
  704. .length = DA8XX_CP_INTC_SIZE,
  705. .type = MT_DEVICE
  706. },
  707. };
  708. static void __iomem *da850_psc_bases[] = {
  709. IO_ADDRESS(DA8XX_PSC0_BASE),
  710. IO_ADDRESS(DA8XX_PSC1_BASE),
  711. };
  712. /* Contents of JTAG ID register used to identify exact cpu type */
  713. static struct davinci_id da850_ids[] = {
  714. {
  715. .variant = 0x0,
  716. .part_no = 0xb7d1,
  717. .manufacturer = 0x017, /* 0x02f >> 1 */
  718. .cpu_id = DAVINCI_CPU_ID_DA850,
  719. .name = "da850/omap-l138",
  720. },
  721. };
  722. static struct davinci_timer_instance da850_timer_instance[4] = {
  723. {
  724. .base = IO_ADDRESS(DA8XX_TIMER64P0_BASE),
  725. .bottom_irq = IRQ_DA8XX_TINT12_0,
  726. .top_irq = IRQ_DA8XX_TINT34_0,
  727. },
  728. {
  729. .base = IO_ADDRESS(DA8XX_TIMER64P1_BASE),
  730. .bottom_irq = IRQ_DA8XX_TINT12_1,
  731. .top_irq = IRQ_DA8XX_TINT34_1,
  732. },
  733. {
  734. .base = IO_ADDRESS(DA850_TIMER64P2_BASE),
  735. .bottom_irq = IRQ_DA850_TINT12_2,
  736. .top_irq = IRQ_DA850_TINT34_2,
  737. },
  738. {
  739. .base = IO_ADDRESS(DA850_TIMER64P3_BASE),
  740. .bottom_irq = IRQ_DA850_TINT12_3,
  741. .top_irq = IRQ_DA850_TINT34_3,
  742. },
  743. };
  744. /*
  745. * T0_BOT: Timer 0, bottom : Used for clock_event
  746. * T0_TOP: Timer 0, top : Used for clocksource
  747. * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
  748. */
  749. static struct davinci_timer_info da850_timer_info = {
  750. .timers = da850_timer_instance,
  751. .clockevent_id = T0_BOT,
  752. .clocksource_id = T0_TOP,
  753. };
  754. static void da850_set_async3_src(int pllnum)
  755. {
  756. struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
  757. struct davinci_clk *c;
  758. unsigned int v;
  759. int ret;
  760. for (c = da850_clks; c->lk.clk; c++) {
  761. clk = c->lk.clk;
  762. if (clk->flags & DA850_CLK_ASYNC3) {
  763. ret = clk_set_parent(clk, newparent);
  764. WARN(ret, "DA850: unable to re-parent clock %s",
  765. clk->name);
  766. }
  767. }
  768. v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG));
  769. if (pllnum)
  770. v |= CFGCHIP3_ASYNC3_CLKSRC;
  771. else
  772. v &= ~CFGCHIP3_ASYNC3_CLKSRC;
  773. __raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG));
  774. }
  775. #ifdef CONFIG_CPU_FREQ
  776. /*
  777. * Notes:
  778. * According to the TRM, minimum PLLM results in maximum power savings.
  779. * The OPP definitions below should keep the PLLM as low as possible.
  780. *
  781. * The output of the PLLM must be between 400 to 600 MHz.
  782. * This rules out prediv of anything but divide-by-one for 24Mhz OSC input.
  783. */
  784. struct da850_opp {
  785. unsigned int freq; /* in KHz */
  786. unsigned int prediv;
  787. unsigned int mult;
  788. unsigned int postdiv;
  789. unsigned int cvdd_min; /* in uV */
  790. unsigned int cvdd_max; /* in uV */
  791. };
  792. static const struct da850_opp da850_opp_300 = {
  793. .freq = 300000,
  794. .prediv = 1,
  795. .mult = 25,
  796. .postdiv = 2,
  797. .cvdd_min = 1140000,
  798. .cvdd_max = 1320000,
  799. };
  800. static const struct da850_opp da850_opp_200 = {
  801. .freq = 200000,
  802. .prediv = 1,
  803. .mult = 25,
  804. .postdiv = 3,
  805. .cvdd_min = 1050000,
  806. .cvdd_max = 1160000,
  807. };
  808. static const struct da850_opp da850_opp_96 = {
  809. .freq = 96000,
  810. .prediv = 1,
  811. .mult = 20,
  812. .postdiv = 5,
  813. .cvdd_min = 950000,
  814. .cvdd_max = 1050000,
  815. };
  816. #define OPP(freq) \
  817. { \
  818. .index = (unsigned int) &da850_opp_##freq, \
  819. .frequency = freq * 1000, \
  820. }
  821. static struct cpufreq_frequency_table da850_freq_table[] = {
  822. OPP(300),
  823. OPP(200),
  824. OPP(96),
  825. {
  826. .index = 0,
  827. .frequency = CPUFREQ_TABLE_END,
  828. },
  829. };
  830. #ifdef CONFIG_REGULATOR
  831. static struct regulator *cvdd;
  832. static int da850_set_voltage(unsigned int index)
  833. {
  834. struct da850_opp *opp;
  835. if (!cvdd)
  836. return -ENODEV;
  837. opp = (struct da850_opp *) da850_freq_table[index].index;
  838. return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
  839. }
  840. static int da850_regulator_init(void)
  841. {
  842. cvdd = regulator_get(NULL, "cvdd");
  843. if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
  844. " voltage scaling unsupported\n")) {
  845. return PTR_ERR(cvdd);
  846. }
  847. return 0;
  848. }
  849. #endif
  850. static struct davinci_cpufreq_config cpufreq_info = {
  851. .freq_table = &da850_freq_table[0],
  852. #ifdef CONFIG_REGULATOR
  853. .init = da850_regulator_init,
  854. .set_voltage = da850_set_voltage,
  855. #endif
  856. };
  857. static struct platform_device da850_cpufreq_device = {
  858. .name = "cpufreq-davinci",
  859. .dev = {
  860. .platform_data = &cpufreq_info,
  861. },
  862. };
  863. int __init da850_register_cpufreq(void)
  864. {
  865. return platform_device_register(&da850_cpufreq_device);
  866. }
  867. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  868. {
  869. int i, ret = 0, diff;
  870. unsigned int best = (unsigned int) -1;
  871. rate /= 1000; /* convert to kHz */
  872. for (i = 0; da850_freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
  873. diff = da850_freq_table[i].frequency - rate;
  874. if (diff < 0)
  875. diff = -diff;
  876. if (diff < best) {
  877. best = diff;
  878. ret = da850_freq_table[i].frequency;
  879. }
  880. }
  881. return ret * 1000;
  882. }
  883. static int da850_set_armrate(struct clk *clk, unsigned long index)
  884. {
  885. struct clk *pllclk = &pll0_clk;
  886. return clk_set_rate(pllclk, index);
  887. }
  888. static int da850_set_pll0rate(struct clk *clk, unsigned long index)
  889. {
  890. unsigned int prediv, mult, postdiv;
  891. struct da850_opp *opp;
  892. struct pll_data *pll = clk->pll_data;
  893. unsigned int v;
  894. int ret;
  895. opp = (struct da850_opp *) da850_freq_table[index].index;
  896. prediv = opp->prediv;
  897. mult = opp->mult;
  898. postdiv = opp->postdiv;
  899. /* Unlock writing to PLL registers */
  900. v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG));
  901. v &= ~CFGCHIP0_PLL_MASTER_LOCK;
  902. __raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG));
  903. ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
  904. if (WARN_ON(ret))
  905. return ret;
  906. return 0;
  907. }
  908. #else
  909. int __init da850_register_cpufreq(void)
  910. {
  911. return 0;
  912. }
  913. static int da850_set_armrate(struct clk *clk, unsigned long rate)
  914. {
  915. return -EINVAL;
  916. }
  917. static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
  918. {
  919. return -EINVAL;
  920. }
  921. static int da850_round_armrate(struct clk *clk, unsigned long rate)
  922. {
  923. return clk->rate;
  924. }
  925. #endif
  926. static struct davinci_soc_info davinci_soc_info_da850 = {
  927. .io_desc = da850_io_desc,
  928. .io_desc_num = ARRAY_SIZE(da850_io_desc),
  929. .ids = da850_ids,
  930. .ids_num = ARRAY_SIZE(da850_ids),
  931. .cpu_clks = da850_clks,
  932. .psc_bases = da850_psc_bases,
  933. .psc_bases_num = ARRAY_SIZE(da850_psc_bases),
  934. .pinmux_pins = da850_pins,
  935. .pinmux_pins_num = ARRAY_SIZE(da850_pins),
  936. .intc_base = (void __iomem *)DA8XX_CP_INTC_VIRT,
  937. .intc_type = DAVINCI_INTC_TYPE_CP_INTC,
  938. .intc_irq_prios = da850_default_priorities,
  939. .intc_irq_num = DA850_N_CP_INTC_IRQ,
  940. .timer_info = &da850_timer_info,
  941. .gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE),
  942. .gpio_num = 144,
  943. .gpio_irq = IRQ_DA8XX_GPIO0,
  944. .serial_dev = &da8xx_serial_device,
  945. .emac_pdata = &da8xx_emac_pdata,
  946. };
  947. void __init da850_init(void)
  948. {
  949. da8xx_syscfg_base = ioremap(DA8XX_SYSCFG_BASE, SZ_4K);
  950. if (WARN(!da8xx_syscfg_base, "Unable to map syscfg module"))
  951. return;
  952. davinci_soc_info_da850.jtag_id_base =
  953. DA8XX_SYSCFG_VIRT(DA8XX_JTAG_ID_REG);
  954. davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG_VIRT(0x120);
  955. davinci_common_init(&davinci_soc_info_da850);
  956. /*
  957. * Move the clock source of Async3 domain to PLL1 SYSCLK2.
  958. * This helps keeping the peripherals on this domain insulated
  959. * from CPU frequency changes caused by DVFS. The firmware sets
  960. * both PLL0 and PLL1 to the same frequency so, there should not
  961. * be any noticible change even in non-DVFS use cases.
  962. */
  963. da850_set_async3_src(1);
  964. }