at91sam9n12.dtsi 15 KB

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  1. /*
  2. * at91sam9n12.dtsi - Device Tree include file for AT91SAM9N12 SoC
  3. *
  4. * Copyright (C) 2012 Atmel,
  5. * 2012 Hong Xu <hong.xu@atmel.com>
  6. *
  7. * Licensed under GPLv2 or later.
  8. */
  9. #include "skeleton.dtsi"
  10. #include <dt-bindings/dma/at91.h>
  11. #include <dt-bindings/pinctrl/at91.h>
  12. #include <dt-bindings/interrupt-controller/irq.h>
  13. #include <dt-bindings/gpio/gpio.h>
  14. / {
  15. model = "Atmel AT91SAM9N12 SoC";
  16. compatible = "atmel,at91sam9n12";
  17. interrupt-parent = <&aic>;
  18. aliases {
  19. serial0 = &dbgu;
  20. serial1 = &usart0;
  21. serial2 = &usart1;
  22. serial3 = &usart2;
  23. serial4 = &usart3;
  24. gpio0 = &pioA;
  25. gpio1 = &pioB;
  26. gpio2 = &pioC;
  27. gpio3 = &pioD;
  28. tcb0 = &tcb0;
  29. tcb1 = &tcb1;
  30. i2c0 = &i2c0;
  31. i2c1 = &i2c1;
  32. ssc0 = &ssc0;
  33. };
  34. cpus {
  35. cpu@0 {
  36. compatible = "arm,arm926ejs";
  37. };
  38. };
  39. memory {
  40. reg = <0x20000000 0x10000000>;
  41. };
  42. ahb {
  43. compatible = "simple-bus";
  44. #address-cells = <1>;
  45. #size-cells = <1>;
  46. ranges;
  47. apb {
  48. compatible = "simple-bus";
  49. #address-cells = <1>;
  50. #size-cells = <1>;
  51. ranges;
  52. aic: interrupt-controller@fffff000 {
  53. #interrupt-cells = <3>;
  54. compatible = "atmel,at91rm9200-aic";
  55. interrupt-controller;
  56. reg = <0xfffff000 0x200>;
  57. };
  58. ramc0: ramc@ffffe800 {
  59. compatible = "atmel,at91sam9g45-ddramc";
  60. reg = <0xffffe800 0x200>;
  61. };
  62. pmc: pmc@fffffc00 {
  63. compatible = "atmel,at91rm9200-pmc";
  64. reg = <0xfffffc00 0x100>;
  65. };
  66. rstc@fffffe00 {
  67. compatible = "atmel,at91sam9g45-rstc";
  68. reg = <0xfffffe00 0x10>;
  69. };
  70. pit: timer@fffffe30 {
  71. compatible = "atmel,at91sam9260-pit";
  72. reg = <0xfffffe30 0xf>;
  73. interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
  74. };
  75. shdwc@fffffe10 {
  76. compatible = "atmel,at91sam9x5-shdwc";
  77. reg = <0xfffffe10 0x10>;
  78. };
  79. mmc0: mmc@f0008000 {
  80. compatible = "atmel,hsmci";
  81. reg = <0xf0008000 0x600>;
  82. interrupts = <12 IRQ_TYPE_LEVEL_HIGH 0>;
  83. dmas = <&dma 1 AT91_DMA_CFG_PER_ID(0)>;
  84. dma-names = "rxtx";
  85. #address-cells = <1>;
  86. #size-cells = <0>;
  87. status = "disabled";
  88. };
  89. tcb0: timer@f8008000 {
  90. compatible = "atmel,at91sam9x5-tcb";
  91. reg = <0xf8008000 0x100>;
  92. interrupts = <17 IRQ_TYPE_LEVEL_HIGH 0>;
  93. };
  94. tcb1: timer@f800c000 {
  95. compatible = "atmel,at91sam9x5-tcb";
  96. reg = <0xf800c000 0x100>;
  97. interrupts = <17 IRQ_TYPE_LEVEL_HIGH 0>;
  98. };
  99. dma: dma-controller@ffffec00 {
  100. compatible = "atmel,at91sam9g45-dma";
  101. reg = <0xffffec00 0x200>;
  102. interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
  103. #dma-cells = <2>;
  104. };
  105. pinctrl@fffff400 {
  106. #address-cells = <1>;
  107. #size-cells = <1>;
  108. compatible = "atmel,at91sam9x5-pinctrl", "atmel,at91rm9200-pinctrl", "simple-bus";
  109. ranges = <0xfffff400 0xfffff400 0x800>;
  110. atmel,mux-mask = <
  111. /* A B C */
  112. 0xffffffff 0xffe07983 0x00000000 /* pioA */
  113. 0x00040000 0x00047e0f 0x00000000 /* pioB */
  114. 0xfdffffff 0x07c00000 0xb83fffff /* pioC */
  115. 0x003fffff 0x003f8000 0x00000000 /* pioD */
  116. >;
  117. /* shared pinctrl settings */
  118. dbgu {
  119. pinctrl_dbgu: dbgu-0 {
  120. atmel,pins =
  121. <AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA9 periph A */
  122. AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PA10 periph with pullup */
  123. };
  124. };
  125. usart0 {
  126. pinctrl_usart0: usart0-0 {
  127. atmel,pins =
  128. <AT91_PIOA 1 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PA1 periph A with pullup */
  129. AT91_PIOA 0 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA0 periph A */
  130. };
  131. pinctrl_usart0_rts: usart0_rts-0 {
  132. atmel,pins =
  133. <AT91_PIOA 2 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA2 periph A */
  134. };
  135. pinctrl_usart0_cts: usart0_cts-0 {
  136. atmel,pins =
  137. <AT91_PIOA 3 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA3 periph A */
  138. };
  139. };
  140. usart1 {
  141. pinctrl_usart1: usart1-0 {
  142. atmel,pins =
  143. <AT91_PIOA 6 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PA6 periph A with pullup */
  144. AT91_PIOA 5 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA5 periph A */
  145. };
  146. };
  147. usart2 {
  148. pinctrl_usart2: usart2-0 {
  149. atmel,pins =
  150. <AT91_PIOA 8 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PA8 periph A with pullup */
  151. AT91_PIOA 7 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA7 periph A */
  152. };
  153. pinctrl_usart2_rts: usart2_rts-0 {
  154. atmel,pins =
  155. <AT91_PIOB 0 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PB0 periph B */
  156. };
  157. pinctrl_usart2_cts: usart2_cts-0 {
  158. atmel,pins =
  159. <AT91_PIOB 1 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PB1 periph B */
  160. };
  161. };
  162. usart3 {
  163. pinctrl_usart3: usart3-0 {
  164. atmel,pins =
  165. <AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* PC23 periph B with pullup */
  166. AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PC22 periph B */
  167. };
  168. pinctrl_usart3_rts: usart3_rts-0 {
  169. atmel,pins =
  170. <AT91_PIOC 24 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PC24 periph B */
  171. };
  172. pinctrl_usart3_cts: usart3_cts-0 {
  173. atmel,pins =
  174. <AT91_PIOC 25 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PC25 periph B */
  175. };
  176. };
  177. uart0 {
  178. pinctrl_uart0: uart0-0 {
  179. atmel,pins =
  180. <AT91_PIOC 9 AT91_PERIPH_C AT91_PINCTRL_PULL_UP /* PC9 periph C with pullup */
  181. AT91_PIOC 8 AT91_PERIPH_C AT91_PINCTRL_NONE>; /* PC8 periph C */
  182. };
  183. };
  184. uart1 {
  185. pinctrl_uart1: uart1-0 {
  186. atmel,pins =
  187. <AT91_PIOC 16 AT91_PERIPH_C AT91_PINCTRL_PULL_UP /* PC17 periph C with pullup */
  188. AT91_PIOC 17 AT91_PERIPH_C AT91_PINCTRL_NONE>; /* PC16 periph C */
  189. };
  190. };
  191. nand {
  192. pinctrl_nand: nand-0 {
  193. atmel,pins =
  194. <AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD5 gpio RDY pin pull_up*/
  195. AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; /* PD4 gpio enable pin pull_up */
  196. };
  197. };
  198. mmc0 {
  199. pinctrl_mmc0_slot0_clk_cmd_dat0: mmc0_slot0_clk_cmd_dat0-0 {
  200. atmel,pins =
  201. <AT91_PIOA 17 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA17 periph A */
  202. AT91_PIOA 16 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PA16 periph A with pullup */
  203. AT91_PIOA 15 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PA15 periph A with pullup */
  204. };
  205. pinctrl_mmc0_slot0_dat1_3: mmc0_slot0_dat1_3-0 {
  206. atmel,pins =
  207. <AT91_PIOA 18 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PA18 periph A with pullup */
  208. AT91_PIOA 19 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PA19 periph A with pullup */
  209. AT91_PIOA 20 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PA20 periph A with pullup */
  210. };
  211. pinctrl_mmc0_slot0_dat4_7: mmc0_slot0_dat4_7-0 {
  212. atmel,pins =
  213. <AT91_PIOA 11 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* PA11 periph B with pullup */
  214. AT91_PIOA 12 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* PA12 periph B with pullup */
  215. AT91_PIOA 13 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* PA13 periph B with pullup */
  216. AT91_PIOA 14 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>; /* PA14 periph B with pullup */
  217. };
  218. };
  219. ssc0 {
  220. pinctrl_ssc0_tx: ssc0_tx-0 {
  221. atmel,pins =
  222. <AT91_PIOA 24 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA24 periph B */
  223. AT91_PIOA 25 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA25 periph B */
  224. AT91_PIOA 26 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PA26 periph B */
  225. };
  226. pinctrl_ssc0_rx: ssc0_rx-0 {
  227. atmel,pins =
  228. <AT91_PIOA 27 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA27 periph B */
  229. AT91_PIOA 28 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA28 periph B */
  230. AT91_PIOA 29 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PA29 periph B */
  231. };
  232. };
  233. spi0 {
  234. pinctrl_spi0: spi0-0 {
  235. atmel,pins =
  236. <AT91_PIOA 11 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA11 periph A SPI0_MISO pin */
  237. AT91_PIOA 12 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA12 periph A SPI0_MOSI pin */
  238. AT91_PIOA 13 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA13 periph A SPI0_SPCK pin */
  239. };
  240. };
  241. spi1 {
  242. pinctrl_spi1: spi1-0 {
  243. atmel,pins =
  244. <AT91_PIOA 21 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA21 periph B SPI1_MISO pin */
  245. AT91_PIOA 22 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA22 periph B SPI1_MOSI pin */
  246. AT91_PIOA 23 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PA23 periph B SPI1_SPCK pin */
  247. };
  248. };
  249. tcb0 {
  250. pinctrl_tcb0_tclk0: tcb0_tclk0-0 {
  251. atmel,pins = <AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  252. };
  253. pinctrl_tcb0_tclk1: tcb0_tclk1-0 {
  254. atmel,pins = <AT91_PIOA 25 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  255. };
  256. pinctrl_tcb0_tclk2: tcb0_tclk2-0 {
  257. atmel,pins = <AT91_PIOA 26 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  258. };
  259. pinctrl_tcb0_tioa0: tcb0_tioa0-0 {
  260. atmel,pins = <AT91_PIOA 21 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  261. };
  262. pinctrl_tcb0_tioa1: tcb0_tioa1-0 {
  263. atmel,pins = <AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  264. };
  265. pinctrl_tcb0_tioa2: tcb0_tioa2-0 {
  266. atmel,pins = <AT91_PIOA 23 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  267. };
  268. pinctrl_tcb0_tiob0: tcb0_tiob0-0 {
  269. atmel,pins = <AT91_PIOA 27 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  270. };
  271. pinctrl_tcb0_tiob1: tcb0_tiob1-0 {
  272. atmel,pins = <AT91_PIOA 28 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  273. };
  274. pinctrl_tcb0_tiob2: tcb0_tiob2-0 {
  275. atmel,pins = <AT91_PIOA 29 AT91_PERIPH_A AT91_PINCTRL_NONE>;
  276. };
  277. };
  278. tcb1 {
  279. pinctrl_tcb1_tclk0: tcb1_tclk0-0 {
  280. atmel,pins = <AT91_PIOC 4 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  281. };
  282. pinctrl_tcb1_tclk1: tcb1_tclk1-0 {
  283. atmel,pins = <AT91_PIOC 7 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  284. };
  285. pinctrl_tcb1_tclk2: tcb1_tclk2-0 {
  286. atmel,pins = <AT91_PIOC 14 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  287. };
  288. pinctrl_tcb1_tioa0: tcb1_tioa0-0 {
  289. atmel,pins = <AT91_PIOC 2 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  290. };
  291. pinctrl_tcb1_tioa1: tcb1_tioa1-0 {
  292. atmel,pins = <AT91_PIOC 5 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  293. };
  294. pinctrl_tcb1_tioa2: tcb1_tioa2-0 {
  295. atmel,pins = <AT91_PIOC 12 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  296. };
  297. pinctrl_tcb1_tiob0: tcb1_tiob0-0 {
  298. atmel,pins = <AT91_PIOC 3 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  299. };
  300. pinctrl_tcb1_tiob1: tcb1_tiob1-0 {
  301. atmel,pins = <AT91_PIOC 6 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  302. };
  303. pinctrl_tcb1_tiob2: tcb1_tiob2-0 {
  304. atmel,pins = <AT91_PIOC 13 AT91_PERIPH_C AT91_PINCTRL_NONE>;
  305. };
  306. };
  307. pioA: gpio@fffff400 {
  308. compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
  309. reg = <0xfffff400 0x200>;
  310. interrupts = <2 IRQ_TYPE_LEVEL_HIGH 1>;
  311. #gpio-cells = <2>;
  312. gpio-controller;
  313. interrupt-controller;
  314. #interrupt-cells = <2>;
  315. };
  316. pioB: gpio@fffff600 {
  317. compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
  318. reg = <0xfffff600 0x200>;
  319. interrupts = <2 IRQ_TYPE_LEVEL_HIGH 1>;
  320. #gpio-cells = <2>;
  321. gpio-controller;
  322. interrupt-controller;
  323. #interrupt-cells = <2>;
  324. };
  325. pioC: gpio@fffff800 {
  326. compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
  327. reg = <0xfffff800 0x200>;
  328. interrupts = <3 IRQ_TYPE_LEVEL_HIGH 1>;
  329. #gpio-cells = <2>;
  330. gpio-controller;
  331. interrupt-controller;
  332. #interrupt-cells = <2>;
  333. };
  334. pioD: gpio@fffffa00 {
  335. compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
  336. reg = <0xfffffa00 0x200>;
  337. interrupts = <3 IRQ_TYPE_LEVEL_HIGH 1>;
  338. #gpio-cells = <2>;
  339. gpio-controller;
  340. interrupt-controller;
  341. #interrupt-cells = <2>;
  342. };
  343. };
  344. dbgu: serial@fffff200 {
  345. compatible = "atmel,at91sam9260-usart";
  346. reg = <0xfffff200 0x200>;
  347. interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
  348. pinctrl-names = "default";
  349. pinctrl-0 = <&pinctrl_dbgu>;
  350. status = "disabled";
  351. };
  352. ssc0: ssc@f0010000 {
  353. compatible = "atmel,at91sam9g45-ssc";
  354. reg = <0xf0010000 0x4000>;
  355. interrupts = <28 IRQ_TYPE_LEVEL_HIGH 5>;
  356. pinctrl-names = "default";
  357. pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>;
  358. status = "disabled";
  359. };
  360. usart0: serial@f801c000 {
  361. compatible = "atmel,at91sam9260-usart";
  362. reg = <0xf801c000 0x4000>;
  363. interrupts = <5 IRQ_TYPE_LEVEL_HIGH 5>;
  364. pinctrl-names = "default";
  365. pinctrl-0 = <&pinctrl_usart0>;
  366. status = "disabled";
  367. };
  368. usart1: serial@f8020000 {
  369. compatible = "atmel,at91sam9260-usart";
  370. reg = <0xf8020000 0x4000>;
  371. interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
  372. pinctrl-names = "default";
  373. pinctrl-0 = <&pinctrl_usart1>;
  374. status = "disabled";
  375. };
  376. usart2: serial@f8024000 {
  377. compatible = "atmel,at91sam9260-usart";
  378. reg = <0xf8024000 0x4000>;
  379. interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
  380. pinctrl-names = "default";
  381. pinctrl-0 = <&pinctrl_usart2>;
  382. status = "disabled";
  383. };
  384. usart3: serial@f8028000 {
  385. compatible = "atmel,at91sam9260-usart";
  386. reg = <0xf8028000 0x4000>;
  387. interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
  388. pinctrl-names = "default";
  389. pinctrl-0 = <&pinctrl_usart3>;
  390. status = "disabled";
  391. };
  392. i2c0: i2c@f8010000 {
  393. compatible = "atmel,at91sam9x5-i2c";
  394. reg = <0xf8010000 0x100>;
  395. interrupts = <9 IRQ_TYPE_LEVEL_HIGH 6>;
  396. dmas = <&dma 1 AT91_DMA_CFG_PER_ID(13)>,
  397. <&dma 1 AT91_DMA_CFG_PER_ID(14)>;
  398. dma-names = "tx", "rx";
  399. #address-cells = <1>;
  400. #size-cells = <0>;
  401. status = "disabled";
  402. };
  403. i2c1: i2c@f8014000 {
  404. compatible = "atmel,at91sam9x5-i2c";
  405. reg = <0xf8014000 0x100>;
  406. interrupts = <10 IRQ_TYPE_LEVEL_HIGH 6>;
  407. dmas = <&dma 1 AT91_DMA_CFG_PER_ID(15)>,
  408. <&dma 1 AT91_DMA_CFG_PER_ID(16)>;
  409. dma-names = "tx", "rx";
  410. #address-cells = <1>;
  411. #size-cells = <0>;
  412. status = "disabled";
  413. };
  414. spi0: spi@f0000000 {
  415. #address-cells = <1>;
  416. #size-cells = <0>;
  417. compatible = "atmel,at91rm9200-spi";
  418. reg = <0xf0000000 0x100>;
  419. interrupts = <13 IRQ_TYPE_LEVEL_HIGH 3>;
  420. pinctrl-names = "default";
  421. pinctrl-0 = <&pinctrl_spi0>;
  422. status = "disabled";
  423. };
  424. spi1: spi@f0004000 {
  425. #address-cells = <1>;
  426. #size-cells = <0>;
  427. compatible = "atmel,at91rm9200-spi";
  428. reg = <0xf0004000 0x100>;
  429. interrupts = <14 IRQ_TYPE_LEVEL_HIGH 3>;
  430. pinctrl-names = "default";
  431. pinctrl-0 = <&pinctrl_spi1>;
  432. status = "disabled";
  433. };
  434. watchdog@fffffe40 {
  435. compatible = "atmel,at91sam9260-wdt";
  436. reg = <0xfffffe40 0x10>;
  437. status = "disabled";
  438. };
  439. };
  440. nand0: nand@40000000 {
  441. compatible = "atmel,at91rm9200-nand";
  442. #address-cells = <1>;
  443. #size-cells = <1>;
  444. reg = < 0x40000000 0x10000000
  445. 0xffffe000 0x00000600
  446. 0xffffe600 0x00000200
  447. 0x00108000 0x00018000
  448. >;
  449. atmel,pmecc-lookup-table-offset = <0x0 0x8000>;
  450. atmel,nand-addr-offset = <21>;
  451. atmel,nand-cmd-offset = <22>;
  452. pinctrl-names = "default";
  453. pinctrl-0 = <&pinctrl_nand>;
  454. gpios = <&pioD 5 GPIO_ACTIVE_HIGH
  455. &pioD 4 GPIO_ACTIVE_HIGH
  456. 0
  457. >;
  458. status = "disabled";
  459. };
  460. usb0: ohci@00500000 {
  461. compatible = "atmel,at91rm9200-ohci", "usb-ohci";
  462. reg = <0x00500000 0x00100000>;
  463. interrupts = <22 IRQ_TYPE_LEVEL_HIGH 2>;
  464. status = "disabled";
  465. };
  466. };
  467. i2c@0 {
  468. compatible = "i2c-gpio";
  469. gpios = <&pioA 30 GPIO_ACTIVE_HIGH /* sda */
  470. &pioA 31 GPIO_ACTIVE_HIGH /* scl */
  471. >;
  472. i2c-gpio,sda-open-drain;
  473. i2c-gpio,scl-open-drain;
  474. i2c-gpio,delay-us = <2>; /* ~100 kHz */
  475. #address-cells = <1>;
  476. #size-cells = <0>;
  477. status = "disabled";
  478. };
  479. };