sbc8560.c 17 KB

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  1. /*
  2. * (C) Copyright 2003,Motorola Inc.
  3. * Xianghua Xiao, (X.Xiao@motorola.com)
  4. *
  5. * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  6. *
  7. * (C) Copyright 2004 Wind River Systems Inc <www.windriver.com>.
  8. * Added support for Wind River SBC8560 board
  9. *
  10. * See file CREDITS for list of people who contributed to this
  11. * project.
  12. *
  13. * This program is free software; you can redistribute it and/or
  14. * modify it under the terms of the GNU General Public License as
  15. * published by the Free Software Foundation; either version 2 of
  16. * the License, or (at your option) any later version.
  17. *
  18. * This program is distributed in the hope that it will be useful,
  19. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21. * GNU General Public License for more details.
  22. *
  23. * You should have received a copy of the GNU General Public License
  24. * along with this program; if not, write to the Free Software
  25. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  26. * MA 02111-1307 USA
  27. */
  28. #include <common.h>
  29. #include <asm/processor.h>
  30. #include <asm/immap_85xx.h>
  31. #include <ioports.h>
  32. #include <spd_sdram.h>
  33. #include <miiphy.h>
  34. #include <libfdt.h>
  35. #include <fdt_support.h>
  36. long int fixed_sdram (void);
  37. /*
  38. * I/O Port configuration table
  39. *
  40. * if conf is 1, then that port pin will be configured at boot time
  41. * according to the five values podr/pdir/ppar/psor/pdat for that entry
  42. */
  43. const iop_conf_t iop_conf_tab[4][32] = {
  44. /* Port A configuration */
  45. { /* conf ppar psor pdir podr pdat */
  46. /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
  47. /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
  48. /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
  49. /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
  50. /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
  51. /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
  52. /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
  53. /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
  54. /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
  55. /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
  56. /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
  57. /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
  58. /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
  59. /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
  60. /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
  61. /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
  62. /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
  63. /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
  64. /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
  65. /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
  66. /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
  67. /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
  68. /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
  69. /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
  70. /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
  71. /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
  72. /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
  73. /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
  74. /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
  75. /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
  76. /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
  77. /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
  78. },
  79. /* Port B configuration */
  80. { /* conf ppar psor pdir podr pdat */
  81. /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
  82. /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
  83. /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
  84. /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
  85. /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
  86. /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
  87. /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
  88. /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
  89. /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
  90. /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
  91. /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
  92. /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
  93. /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
  94. /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
  95. /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
  96. /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
  97. /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
  98. /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
  99. /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
  100. /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
  101. /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  102. /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  103. /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  104. /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  105. /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  106. /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  107. /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  108. /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  109. /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  110. /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  111. /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  112. /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
  113. },
  114. /* Port C */
  115. { /* conf ppar psor pdir podr pdat */
  116. /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
  117. /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
  118. /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
  119. /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
  120. /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
  121. /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
  122. /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
  123. /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
  124. /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
  125. /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
  126. /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
  127. /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
  128. /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
  129. /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
  130. /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
  131. /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
  132. /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
  133. /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
  134. /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
  135. /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
  136. /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
  137. /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
  138. /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
  139. /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
  140. /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
  141. /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
  142. /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
  143. /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
  144. /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
  145. /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
  146. /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
  147. /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
  148. },
  149. /* Port D */
  150. { /* conf ppar psor pdir podr pdat */
  151. /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
  152. /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
  153. /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 RTS */
  154. /* PD28 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RxD */
  155. /* PD27 */ { 1, 1, 1, 1, 0, 0 }, /* SCC2 TxD */
  156. /* PD26 */ { 1, 1, 0, 1, 0, 0 }, /* SCC2 RTS */
  157. /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
  158. /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
  159. /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
  160. /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
  161. /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
  162. /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
  163. /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
  164. /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
  165. /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
  166. /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
  167. /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
  168. /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
  169. /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
  170. /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
  171. /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
  172. /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
  173. /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
  174. /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
  175. /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
  176. /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
  177. /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
  178. /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
  179. /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  180. /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  181. /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  182. /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
  183. }
  184. };
  185. int board_early_init_f (void)
  186. {
  187. #if defined(CONFIG_PCI)
  188. volatile ccsr_pcix_t *pci = (void *)(CFG_MPC85xx_PCIX_ADDR);
  189. pci->peer &= 0xfffffffdf; /* disable master abort */
  190. #endif
  191. return 0;
  192. }
  193. void reset_phy (void)
  194. {
  195. #if defined(CONFIG_ETHER_ON_FCC) /* avoid compile warnings for now */
  196. volatile unsigned char *bcsr = (unsigned char *) CFG_BCSR;
  197. #endif
  198. /* reset Giga bit Ethernet port if needed here */
  199. /* reset the CPM FEC port */
  200. #if (CONFIG_ETHER_INDEX == 2)
  201. bcsr[0] &= ~0x20;
  202. udelay(2);
  203. bcsr[0] |= 0x20;
  204. udelay(1000);
  205. #elif (CONFIG_ETHER_INDEX == 3)
  206. bcsr[0] &= ~0x10;
  207. udelay(2);
  208. bcsr[0] |= 0x10;
  209. udelay(1000);
  210. #endif
  211. #if defined(CONFIG_MII) && defined(CONFIG_ETHER_ON_FCC)
  212. /* reset PHY */
  213. miiphy_reset("FCC1 ETHERNET", 0x0);
  214. /* change PHY address to 0x02 */
  215. bb_miiphy_write(NULL, 0, PHY_MIPSCR, 0xf028);
  216. bb_miiphy_write(NULL, 0x02, PHY_BMCR,
  217. PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
  218. #endif /* CONFIG_MII */
  219. }
  220. int checkboard (void)
  221. {
  222. sys_info_t sysinfo;
  223. get_sys_info (&sysinfo);
  224. #ifdef CONFIG_SBC8560
  225. printf ("Board: Wind River SBC8560 Board\n");
  226. #else
  227. printf ("Board: Wind River SBC8540 Board\n");
  228. #endif
  229. printf ("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
  230. printf ("\tCCB: %lu MHz\n", sysinfo.freqSystemBus / 1000000);
  231. printf ("\tDDR: %lu MHz\n", sysinfo.freqSystemBus / 2000000);
  232. if((CFG_LBC_LCRR & 0x0f) == 2 || (CFG_LBC_LCRR & 0x0f) == 4 \
  233. || (CFG_LBC_LCRR & 0x0f) == 8) {
  234. printf ("\tLBC: %lu MHz\n", sysinfo.freqSystemBus / 1000000 /(CFG_LBC_LCRR & 0x0f));
  235. } else {
  236. printf("\tLBC: unknown\n");
  237. }
  238. printf("\tCPM: %lu Mhz\n", sysinfo.freqSystemBus / 1000000);
  239. printf("L1 D-cache 32KB, L1 I-cache 32KB enabled.\n");
  240. return (0);
  241. }
  242. phys_size_t initdram (int board_type)
  243. {
  244. long dram_size = 0;
  245. #if 0
  246. #if !defined(CONFIG_RAM_AS_FLASH)
  247. volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
  248. sys_info_t sysinfo;
  249. uint temp_lbcdll = 0;
  250. #endif
  251. #endif /* 0 */
  252. #if !defined(CONFIG_RAM_AS_FLASH) || defined(CONFIG_DDR_DLL)
  253. volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
  254. #endif
  255. #if defined(CONFIG_DDR_DLL)
  256. uint temp_ddrdll = 0;
  257. /* Work around to stabilize DDR DLL */
  258. temp_ddrdll = gur->ddrdllcr;
  259. gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
  260. asm("sync;isync;msync");
  261. #endif
  262. #if defined(CONFIG_SPD_EEPROM)
  263. dram_size = spd_sdram ();
  264. #else
  265. dram_size = fixed_sdram ();
  266. #endif
  267. #if 0
  268. #if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus SDRAM is not emulating flash */
  269. get_sys_info(&sysinfo);
  270. /* if localbus freq is less than 66Mhz,we use bypass mode,otherwise use DLL */
  271. if(sysinfo.freqSystemBus/(CFG_LBC_LCRR & 0x0f) < 66000000) {
  272. lbc->lcrr = (CFG_LBC_LCRR & 0x0fffffff)| 0x80000000;
  273. } else {
  274. #if defined(CONFIG_MPC85xx_REV1) /* need change CLKDIV before enable DLL */
  275. lbc->lcrr = 0x10000004; /* default CLKDIV is 8, change it to 4 temporarily */
  276. #endif
  277. lbc->lcrr = CFG_LBC_LCRR & 0x7fffffff;
  278. udelay(200);
  279. temp_lbcdll = gur->lbcdllcr;
  280. gur->lbcdllcr = ((temp_lbcdll & 0xff) << 16 ) | 0x80000000;
  281. asm("sync;isync;msync");
  282. }
  283. lbc->or2 = CFG_OR2_PRELIM; /* 64MB SDRAM */
  284. lbc->br2 = CFG_BR2_PRELIM;
  285. lbc->lbcr = CFG_LBC_LBCR;
  286. lbc->lsdmr = CFG_LBC_LSDMR_1;
  287. asm("sync");
  288. (unsigned int) * (ulong *)0 = 0x000000ff;
  289. lbc->lsdmr = CFG_LBC_LSDMR_2;
  290. asm("sync");
  291. (unsigned int) * (ulong *)0 = 0x000000ff;
  292. lbc->lsdmr = CFG_LBC_LSDMR_3;
  293. asm("sync");
  294. (unsigned int) * (ulong *)0 = 0x000000ff;
  295. lbc->lsdmr = CFG_LBC_LSDMR_4;
  296. asm("sync");
  297. (unsigned int) * (ulong *)0 = 0x000000ff;
  298. lbc->lsdmr = CFG_LBC_LSDMR_5;
  299. asm("sync");
  300. lbc->lsrt = CFG_LBC_LSRT;
  301. asm("sync");
  302. lbc->mrtpr = CFG_LBC_MRTPR;
  303. asm("sync");
  304. #endif
  305. #endif
  306. #if defined(CONFIG_DDR_ECC)
  307. {
  308. /* Initialize all of memory for ECC, then
  309. * enable errors */
  310. uint *p = 0;
  311. uint i = 0;
  312. volatile ccsr_ddr_t *ddr= (void *)(CFG_MPC85xx_DDR_ADDR);
  313. dma_init();
  314. for (*p = 0; p < (uint *)(8 * 1024); p++) {
  315. if (((unsigned int)p & 0x1f) == 0) { dcbz(p); }
  316. *p = (unsigned int)0xdeadbeef;
  317. if (((unsigned int)p & 0x1c) == 0x1c) { dcbf(p); }
  318. }
  319. /* 8K */
  320. dma_xfer((uint *)0x2000,0x2000,(uint *)0);
  321. /* 16K */
  322. dma_xfer((uint *)0x4000,0x4000,(uint *)0);
  323. /* 32K */
  324. dma_xfer((uint *)0x8000,0x8000,(uint *)0);
  325. /* 64K */
  326. dma_xfer((uint *)0x10000,0x10000,(uint *)0);
  327. /* 128k */
  328. dma_xfer((uint *)0x20000,0x20000,(uint *)0);
  329. /* 256k */
  330. dma_xfer((uint *)0x40000,0x40000,(uint *)0);
  331. /* 512k */
  332. dma_xfer((uint *)0x80000,0x80000,(uint *)0);
  333. /* 1M */
  334. dma_xfer((uint *)0x100000,0x100000,(uint *)0);
  335. /* 2M */
  336. dma_xfer((uint *)0x200000,0x200000,(uint *)0);
  337. /* 4M */
  338. dma_xfer((uint *)0x400000,0x400000,(uint *)0);
  339. for (i = 1; i < dram_size / 0x800000; i++) {
  340. dma_xfer((uint *)(0x800000*i),0x800000,(uint *)0);
  341. }
  342. /* Enable errors for ECC */
  343. ddr->err_disable = 0x00000000;
  344. asm("sync;isync;msync");
  345. }
  346. #endif
  347. return dram_size;
  348. }
  349. #if defined(CFG_DRAM_TEST)
  350. int testdram (void)
  351. {
  352. uint *pstart = (uint *) CFG_MEMTEST_START;
  353. uint *pend = (uint *) CFG_MEMTEST_END;
  354. uint *p;
  355. printf("SDRAM test phase 1:\n");
  356. for (p = pstart; p < pend; p++)
  357. *p = 0xaaaaaaaa;
  358. for (p = pstart; p < pend; p++) {
  359. if (*p != 0xaaaaaaaa) {
  360. printf ("SDRAM test fails at: %08x\n", (uint) p);
  361. return 1;
  362. }
  363. }
  364. printf("SDRAM test phase 2:\n");
  365. for (p = pstart; p < pend; p++)
  366. *p = 0x55555555;
  367. for (p = pstart; p < pend; p++) {
  368. if (*p != 0x55555555) {
  369. printf ("SDRAM test fails at: %08x\n", (uint) p);
  370. return 1;
  371. }
  372. }
  373. printf("SDRAM test passed.\n");
  374. return 0;
  375. }
  376. #endif
  377. #if !defined(CONFIG_SPD_EEPROM)
  378. /*************************************************************************
  379. * fixed sdram init -- doesn't use serial presence detect.
  380. ************************************************************************/
  381. long int fixed_sdram (void)
  382. {
  383. #define CFG_DDR_CONTROL 0xc2000000
  384. #ifndef CFG_RAMBOOT
  385. volatile ccsr_ddr_t *ddr= (void *)(CFG_MPC85xx_DDR_ADDR);
  386. #if (CFG_SDRAM_SIZE == 512)
  387. ddr->cs0_bnds = 0x0000000f;
  388. #else
  389. ddr->cs0_bnds = 0x00000007;
  390. #endif
  391. ddr->cs1_bnds = 0x0010001f;
  392. ddr->cs2_bnds = 0x00000000;
  393. ddr->cs3_bnds = 0x00000000;
  394. ddr->cs0_config = 0x80000102;
  395. ddr->cs1_config = 0x80000102;
  396. ddr->cs2_config = 0x00000000;
  397. ddr->cs3_config = 0x00000000;
  398. ddr->timing_cfg_1 = 0x37334321;
  399. ddr->timing_cfg_2 = 0x00000800;
  400. ddr->sdram_cfg = 0x42000000;
  401. ddr->sdram_mode = 0x00000022;
  402. ddr->sdram_interval = 0x05200100;
  403. ddr->err_sbe = 0x00ff0000;
  404. #if defined (CONFIG_DDR_ECC)
  405. ddr->err_disable = 0x0000000D;
  406. #endif
  407. asm("sync;isync;msync");
  408. udelay(500);
  409. #if defined (CONFIG_DDR_ECC)
  410. /* Enable ECC checking */
  411. ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000);
  412. #else
  413. ddr->sdram_cfg = CFG_DDR_CONTROL;
  414. #endif
  415. asm("sync; isync; msync");
  416. udelay(500);
  417. #endif
  418. return CFG_SDRAM_SIZE * 1024 * 1024;
  419. }
  420. #endif /* !defined(CONFIG_SPD_EEPROM) */
  421. #if defined(CONFIG_OF_BOARD_SETUP)
  422. void
  423. ft_board_setup(void *blob, bd_t *bd)
  424. {
  425. int node, tmp[2];
  426. #ifdef CONFIG_PCI
  427. const char *path;
  428. #endif
  429. ft_cpu_setup(blob, bd);
  430. node = fdt_path_offset(blob, "/aliases");
  431. tmp[0] = 0;
  432. if (node >= 0) {
  433. #ifdef CONFIG_PCI
  434. path = fdt_getprop(blob, node, "pci0", NULL);
  435. if (path) {
  436. tmp[1] = hose.last_busno - hose.first_busno;
  437. do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
  438. }
  439. #endif
  440. }
  441. }
  442. #endif