sequoia.c 19 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593
  1. /*
  2. * (C) Copyright 2006-2007
  3. * Stefan Roese, DENX Software Engineering, sr@denx.de.
  4. *
  5. * (C) Copyright 2006
  6. * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
  7. * Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
  8. *
  9. * This program is free software; you can redistribute it and/or
  10. * modify it under the terms of the GNU General Public License as
  11. * published by the Free Software Foundation; either version 2 of
  12. * the License, or (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22. * MA 02111-1307 USA
  23. */
  24. #include <common.h>
  25. #include <libfdt.h>
  26. #include <fdt_support.h>
  27. #include <ppc440.h>
  28. #include <asm/gpio.h>
  29. #include <asm/processor.h>
  30. #include <asm/io.h>
  31. #include <asm/ppc4xx-intvec.h>
  32. DECLARE_GLOBAL_DATA_PTR;
  33. extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
  34. ulong flash_get_size (ulong base, int banknum);
  35. int board_early_init_f(void)
  36. {
  37. u32 sdr0_cust0;
  38. u32 sdr0_pfc1, sdr0_pfc2;
  39. u32 reg;
  40. mtdcr(ebccfga, xbcfg);
  41. mtdcr(ebccfgd, 0xb8400000);
  42. /*--------------------------------------------------------------------
  43. * Setup the interrupt controller polarities, triggers, etc.
  44. *-------------------------------------------------------------------*/
  45. mtdcr(uic0sr, 0xffffffff); /* clear all */
  46. mtdcr(uic0er, 0x00000000); /* disable all */
  47. mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
  48. mtdcr(uic0pr, 0xfffff7ff); /* per ref-board manual */
  49. mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
  50. mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
  51. mtdcr(uic0sr, 0xffffffff); /* clear all */
  52. mtdcr(uic1sr, 0xffffffff); /* clear all */
  53. mtdcr(uic1er, 0x00000000); /* disable all */
  54. mtdcr(uic1cr, 0x00000000); /* all non-critical */
  55. mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
  56. mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
  57. mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */
  58. mtdcr(uic1sr, 0xffffffff); /* clear all */
  59. mtdcr(uic2sr, 0xffffffff); /* clear all */
  60. mtdcr(uic2er, 0x00000000); /* disable all */
  61. mtdcr(uic2cr, 0x00000000); /* all non-critical */
  62. mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */
  63. mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
  64. mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
  65. mtdcr(uic2sr, 0xffffffff); /* clear all */
  66. /* 50MHz tmrclk */
  67. out_8((u8 *) CFG_BCSR_BASE + 0x04, 0x00);
  68. /* clear write protects */
  69. out_8((u8 *) CFG_BCSR_BASE + 0x07, 0x00);
  70. /* enable Ethernet */
  71. out_8((u8 *) CFG_BCSR_BASE + 0x08, 0x00);
  72. /* enable USB device */
  73. out_8((u8 *) CFG_BCSR_BASE + 0x09, 0x20);
  74. /* select Ethernet pins */
  75. mfsdr(SDR0_PFC1, sdr0_pfc1);
  76. sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) | SDR0_PFC1_SELECT_CONFIG_4;
  77. mfsdr(SDR0_PFC2, sdr0_pfc2);
  78. sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) | SDR0_PFC2_SELECT_CONFIG_4;
  79. mtsdr(SDR0_PFC2, sdr0_pfc2);
  80. mtsdr(SDR0_PFC1, sdr0_pfc1);
  81. /* PCI arbiter enabled */
  82. mfsdr(sdr_pci0, reg);
  83. mtsdr(sdr_pci0, 0x80000000 | reg);
  84. /* setup NAND FLASH */
  85. mfsdr(SDR0_CUST0, sdr0_cust0);
  86. sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
  87. SDR0_CUST0_NDFC_ENABLE |
  88. SDR0_CUST0_NDFC_BW_8_BIT |
  89. SDR0_CUST0_NDFC_ARE_MASK |
  90. (0x80000000 >> (28 + CFG_NAND_CS));
  91. mtsdr(SDR0_CUST0, sdr0_cust0);
  92. return 0;
  93. }
  94. /*---------------------------------------------------------------------------+
  95. | misc_init_r.
  96. +---------------------------------------------------------------------------*/
  97. int misc_init_r(void)
  98. {
  99. uint pbcr;
  100. int size_val = 0;
  101. u32 reg;
  102. #ifdef CONFIG_440EPX
  103. unsigned long usb2d0cr = 0;
  104. unsigned long usb2phy0cr, usb2h0cr = 0;
  105. unsigned long sdr0_pfc1;
  106. char *act = getenv("usbact");
  107. #endif
  108. /*
  109. * FLASH stuff...
  110. */
  111. /* Re-do sizing to get full correct info */
  112. /* adjust flash start and offset */
  113. gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
  114. gd->bd->bi_flashoffset = 0;
  115. #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
  116. mtdcr(ebccfga, pb3cr);
  117. #else
  118. mtdcr(ebccfga, pb0cr);
  119. #endif
  120. pbcr = mfdcr(ebccfgd);
  121. switch (gd->bd->bi_flashsize) {
  122. case 1 << 20:
  123. size_val = 0;
  124. break;
  125. case 2 << 20:
  126. size_val = 1;
  127. break;
  128. case 4 << 20:
  129. size_val = 2;
  130. break;
  131. case 8 << 20:
  132. size_val = 3;
  133. break;
  134. case 16 << 20:
  135. size_val = 4;
  136. break;
  137. case 32 << 20:
  138. size_val = 5;
  139. break;
  140. case 64 << 20:
  141. size_val = 6;
  142. break;
  143. case 128 << 20:
  144. size_val = 7;
  145. break;
  146. }
  147. pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
  148. #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
  149. mtdcr(ebccfga, pb3cr);
  150. #else
  151. mtdcr(ebccfga, pb0cr);
  152. #endif
  153. mtdcr(ebccfgd, pbcr);
  154. /*
  155. * Re-check to get correct base address
  156. */
  157. flash_get_size(gd->bd->bi_flashstart, 0);
  158. #ifdef CFG_ENV_IS_IN_FLASH
  159. /* Monitor protection ON by default */
  160. (void)flash_protect(FLAG_PROTECT_SET,
  161. -CFG_MONITOR_LEN,
  162. 0xffffffff,
  163. &flash_info[0]);
  164. /* Env protection ON by default */
  165. (void)flash_protect(FLAG_PROTECT_SET,
  166. CFG_ENV_ADDR_REDUND,
  167. CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
  168. &flash_info[0]);
  169. #endif
  170. /*
  171. * USB suff...
  172. */
  173. #ifdef CONFIG_440EPX
  174. if (act == NULL || strcmp(act, "hostdev") == 0) {
  175. /* SDR Setting */
  176. mfsdr(SDR0_PFC1, sdr0_pfc1);
  177. mfsdr(SDR0_USB2D0CR, usb2d0cr);
  178. mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
  179. mfsdr(SDR0_USB2H0CR, usb2h0cr);
  180. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
  181. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
  182. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
  183. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ; /*1*/
  184. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
  185. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS; /*0*/
  186. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
  187. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/
  188. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
  189. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/
  190. /* An 8-bit/60MHz interface is the only possible alternative
  191. when connecting the Device to the PHY */
  192. usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
  193. usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ; /*1*/
  194. /* To enable the USB 2.0 Device function through the UTMI interface */
  195. usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
  196. usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION; /*1*/
  197. sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
  198. sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL; /*0*/
  199. mtsdr(SDR0_PFC1, sdr0_pfc1);
  200. mtsdr(SDR0_USB2D0CR, usb2d0cr);
  201. mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
  202. mtsdr(SDR0_USB2H0CR, usb2h0cr);
  203. /*clear resets*/
  204. udelay (1000);
  205. mtsdr(SDR0_SRST1, 0x00000000);
  206. udelay (1000);
  207. mtsdr(SDR0_SRST0, 0x00000000);
  208. printf("USB: Host(int phy) Device(ext phy)\n");
  209. } else if (strcmp(act, "dev") == 0) {
  210. /*-------------------PATCH-------------------------------*/
  211. mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
  212. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
  213. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
  214. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
  215. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS; /*0*/
  216. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
  217. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/
  218. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
  219. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/
  220. mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
  221. udelay (1000);
  222. mtsdr(SDR0_SRST1, 0x672c6000);
  223. udelay (1000);
  224. mtsdr(SDR0_SRST0, 0x00000080);
  225. udelay (1000);
  226. mtsdr(SDR0_SRST1, 0x60206000);
  227. *(unsigned int *)(0xe0000350) = 0x00000001;
  228. udelay (1000);
  229. mtsdr(SDR0_SRST1, 0x60306000);
  230. /*-------------------PATCH-------------------------------*/
  231. /* SDR Setting */
  232. mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
  233. mfsdr(SDR0_USB2H0CR, usb2h0cr);
  234. mfsdr(SDR0_USB2D0CR, usb2d0cr);
  235. mfsdr(SDR0_PFC1, sdr0_pfc1);
  236. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
  237. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
  238. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
  239. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ; /*0*/
  240. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
  241. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN; /*1*/
  242. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
  243. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV; /*0*/
  244. usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
  245. usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV; /*0*/
  246. usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
  247. usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ; /*0*/
  248. usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
  249. usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION; /*0*/
  250. sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
  251. sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL; /*1*/
  252. mtsdr(SDR0_USB2H0CR, usb2h0cr);
  253. mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
  254. mtsdr(SDR0_USB2D0CR, usb2d0cr);
  255. mtsdr(SDR0_PFC1, sdr0_pfc1);
  256. /*clear resets*/
  257. udelay (1000);
  258. mtsdr(SDR0_SRST1, 0x00000000);
  259. udelay (1000);
  260. mtsdr(SDR0_SRST0, 0x00000000);
  261. printf("USB: Device(int phy)\n");
  262. }
  263. #endif /* CONFIG_440EPX */
  264. mfsdr(SDR0_SRST1, reg); /* enable security/kasumi engines */
  265. reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
  266. mtsdr(SDR0_SRST1, reg);
  267. /*
  268. * Clear PLB4A0_ACR[WRP]
  269. * This fix will make the MAL burst disabling patch for the Linux
  270. * EMAC driver obsolete.
  271. */
  272. reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
  273. mtdcr(plb4_acr, reg);
  274. return 0;
  275. }
  276. int checkboard(void)
  277. {
  278. char *s = getenv("serial#");
  279. u8 rev;
  280. u8 val;
  281. #ifdef CONFIG_440EPX
  282. printf("Board: Sequoia - AMCC PPC440EPx Evaluation Board");
  283. #else
  284. printf("Board: Rainier - AMCC PPC440GRx Evaluation Board");
  285. #endif
  286. rev = in_8((void *)(CFG_BCSR_BASE + 0));
  287. val = in_8((void *)(CFG_BCSR_BASE + 5)) & CFG_BCSR5_PCI66EN;
  288. printf(", Rev. %X, PCI=%d MHz", rev, val ? 66 : 33);
  289. if (s != NULL) {
  290. puts(", serial# ");
  291. puts(s);
  292. }
  293. putc('\n');
  294. return (0);
  295. }
  296. #if defined(CFG_DRAM_TEST)
  297. int testdram(void)
  298. {
  299. unsigned long *mem = (unsigned long *)0;
  300. const unsigned long kend = (1024 / sizeof(unsigned long));
  301. unsigned long k, n;
  302. mtmsr(0);
  303. for (k = 0; k < CFG_MBYTES_SDRAM;
  304. ++k, mem += (1024 / sizeof(unsigned long))) {
  305. if ((k & 1023) == 0) {
  306. printf("%3d MB\r", k / 1024);
  307. }
  308. memset(mem, 0xaaaaaaaa, 1024);
  309. for (n = 0; n < kend; ++n) {
  310. if (mem[n] != 0xaaaaaaaa) {
  311. printf("SDRAM test fails at: %08x\n",
  312. (uint) & mem[n]);
  313. return 1;
  314. }
  315. }
  316. memset(mem, 0x55555555, 1024);
  317. for (n = 0; n < kend; ++n) {
  318. if (mem[n] != 0x55555555) {
  319. printf("SDRAM test fails at: %08x\n",
  320. (uint) & mem[n]);
  321. return 1;
  322. }
  323. }
  324. }
  325. printf("SDRAM test passes\n");
  326. return 0;
  327. }
  328. #endif
  329. #if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
  330. /*
  331. * Assign interrupts to PCI devices.
  332. */
  333. void sequoia_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
  334. {
  335. pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, VECNUM_EIR2);
  336. }
  337. #endif
  338. /*************************************************************************
  339. * pci_pre_init
  340. *
  341. * This routine is called just prior to registering the hose and gives
  342. * the board the opportunity to check things. Returning a value of zero
  343. * indicates that things are bad & PCI initialization should be aborted.
  344. *
  345. * Different boards may wish to customize the pci controller structure
  346. * (add regions, override default access routines, etc) or perform
  347. * certain pre-initialization actions.
  348. *
  349. ************************************************************************/
  350. #if defined(CONFIG_PCI)
  351. int pci_pre_init(struct pci_controller *hose)
  352. {
  353. unsigned long addr;
  354. /*-------------------------------------------------------------------------+
  355. | Set priority for all PLB3 devices to 0.
  356. | Set PLB3 arbiter to fair mode.
  357. +-------------------------------------------------------------------------*/
  358. mfsdr(sdr_amp1, addr);
  359. mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
  360. addr = mfdcr(plb3_acr);
  361. mtdcr(plb3_acr, addr | 0x80000000);
  362. /*-------------------------------------------------------------------------+
  363. | Set priority for all PLB4 devices to 0.
  364. +-------------------------------------------------------------------------*/
  365. mfsdr(sdr_amp0, addr);
  366. mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
  367. addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
  368. mtdcr(plb4_acr, addr);
  369. /*-------------------------------------------------------------------------+
  370. | Set Nebula PLB4 arbiter to fair mode.
  371. +-------------------------------------------------------------------------*/
  372. /* Segment0 */
  373. addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
  374. addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
  375. addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
  376. addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
  377. mtdcr(plb0_acr, addr);
  378. /* Segment1 */
  379. addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
  380. addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
  381. addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
  382. addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
  383. mtdcr(plb1_acr, addr);
  384. #ifdef CONFIG_PCI_PNP
  385. hose->fixup_irq = sequoia_pci_fixup_irq;
  386. #endif
  387. return 1;
  388. }
  389. #endif /* defined(CONFIG_PCI) */
  390. /*************************************************************************
  391. * pci_target_init
  392. *
  393. * The bootstrap configuration provides default settings for the pci
  394. * inbound map (PIM). But the bootstrap config choices are limited and
  395. * may not be sufficient for a given board.
  396. *
  397. ************************************************************************/
  398. #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
  399. void pci_target_init(struct pci_controller *hose)
  400. {
  401. /*--------------------------------------------------------------------------+
  402. * Set up Direct MMIO registers
  403. *--------------------------------------------------------------------------*/
  404. /*--------------------------------------------------------------------------+
  405. | PowerPC440EPX PCI Master configuration.
  406. | Map one 1Gig range of PLB/processor addresses to PCI memory space.
  407. | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
  408. | Use byte reversed out routines to handle endianess.
  409. | Make this region non-prefetchable.
  410. +--------------------------------------------------------------------------*/
  411. out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
  412. out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
  413. out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
  414. out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
  415. out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, and enable region */
  416. out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
  417. out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
  418. out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */
  419. out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */
  420. out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, and enable region */
  421. out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */
  422. out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */
  423. out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */
  424. out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */
  425. /*--------------------------------------------------------------------------+
  426. * Set up Configuration registers
  427. *--------------------------------------------------------------------------*/
  428. /* Program the board's subsystem id/vendor id */
  429. pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
  430. CFG_PCI_SUBSYS_VENDORID);
  431. pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
  432. /* Configure command register as bus master */
  433. pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
  434. /* 240nS PCI clock */
  435. pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
  436. /* No error reporting */
  437. pci_write_config_word(0, PCI_ERREN, 0);
  438. pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
  439. }
  440. #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
  441. /*************************************************************************
  442. * pci_master_init
  443. *
  444. ************************************************************************/
  445. #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
  446. void pci_master_init(struct pci_controller *hose)
  447. {
  448. unsigned short temp_short;
  449. /*--------------------------------------------------------------------------+
  450. | Write the PowerPC440 EP PCI Configuration regs.
  451. | Enable PowerPC440 EP to be a master on the PCI bus (PMM).
  452. | Enable PowerPC440 EP to act as a PCI memory target (PTM).
  453. +--------------------------------------------------------------------------*/
  454. pci_read_config_word(0, PCI_COMMAND, &temp_short);
  455. pci_write_config_word(0, PCI_COMMAND,
  456. temp_short | PCI_COMMAND_MASTER |
  457. PCI_COMMAND_MEMORY);
  458. }
  459. #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
  460. /*************************************************************************
  461. * is_pci_host
  462. *
  463. * This routine is called to determine if a pci scan should be
  464. * performed. With various hardware environments (especially cPCI and
  465. * PPMC) it's insufficient to depend on the state of the arbiter enable
  466. * bit in the strap register, or generic host/adapter assumptions.
  467. *
  468. * Rather than hard-code a bad assumption in the general 440 code, the
  469. * 440 pci code requires the board to decide at runtime.
  470. *
  471. * Return 0 for adapter mode, non-zero for host (monarch) mode.
  472. *
  473. *
  474. ************************************************************************/
  475. #if defined(CONFIG_PCI)
  476. int is_pci_host(struct pci_controller *hose)
  477. {
  478. /* Cactus is always configured as host. */
  479. return (1);
  480. }
  481. #endif /* defined(CONFIG_PCI) */
  482. #if defined(CONFIG_POST)
  483. /*
  484. * Returns 1 if keys pressed to start the power-on long-running tests
  485. * Called from board_init_f().
  486. */
  487. int post_hotkeys_pressed(void)
  488. {
  489. return 0; /* No hotkeys supported */
  490. }
  491. #endif /* CONFIG_POST */
  492. #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  493. void ft_board_setup(void *blob, bd_t *bd)
  494. {
  495. u32 val[4];
  496. int rc;
  497. ft_cpu_setup(blob, bd);
  498. /* Fixup NOR mapping */
  499. val[0] = 0; /* chip select number */
  500. val[1] = 0; /* always 0 */
  501. val[2] = gd->bd->bi_flashstart;
  502. val[3] = gd->bd->bi_flashsize;
  503. rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
  504. val, sizeof(val), 1);
  505. if (rc)
  506. printf("Unable to update property NOR mapping, err=%s\n",
  507. fdt_strerror(rc));
  508. }
  509. #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */