mpc8560ads.c 17 KB

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  1. /*
  2. * Copyright 2004 Freescale Semiconductor.
  3. * (C) Copyright 2003,Motorola Inc.
  4. * Xianghua Xiao, (X.Xiao@motorola.com)
  5. *
  6. * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  7. *
  8. * See file CREDITS for list of people who contributed to this
  9. * project.
  10. *
  11. * This program is free software; you can redistribute it and/or
  12. * modify it under the terms of the GNU General Public License as
  13. * published by the Free Software Foundation; either version 2 of
  14. * the License, or (at your option) any later version.
  15. *
  16. * This program is distributed in the hope that it will be useful,
  17. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19. * GNU General Public License for more details.
  20. *
  21. * You should have received a copy of the GNU General Public License
  22. * along with this program; if not, write to the Free Software
  23. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24. * MA 02111-1307 USA
  25. */
  26. #include <common.h>
  27. #include <pci.h>
  28. #include <asm/processor.h>
  29. #include <asm/mmu.h>
  30. #include <asm/immap_85xx.h>
  31. #include <asm/fsl_ddr_sdram.h>
  32. #include <ioports.h>
  33. #include <spd_sdram.h>
  34. #include <miiphy.h>
  35. #include <libfdt.h>
  36. #include <fdt_support.h>
  37. #include <asm/fsl_lbc.h>
  38. #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  39. extern void ddr_enable_ecc(unsigned int dram_size);
  40. #endif
  41. void local_bus_init(void);
  42. void sdram_init(void);
  43. long int fixed_sdram(void);
  44. /*
  45. * I/O Port configuration table
  46. *
  47. * if conf is 1, then that port pin will be configured at boot time
  48. * according to the five values podr/pdir/ppar/psor/pdat for that entry
  49. */
  50. const iop_conf_t iop_conf_tab[4][32] = {
  51. /* Port A configuration */
  52. { /* conf ppar psor pdir podr pdat */
  53. /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
  54. /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
  55. /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
  56. /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
  57. /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
  58. /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
  59. /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
  60. /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
  61. /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
  62. /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
  63. /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
  64. /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
  65. /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
  66. /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
  67. /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
  68. /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
  69. /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
  70. /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
  71. /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
  72. /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
  73. /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
  74. /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
  75. /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
  76. /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
  77. /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
  78. /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
  79. /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
  80. /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
  81. /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
  82. /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
  83. /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
  84. /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
  85. },
  86. /* Port B configuration */
  87. { /* conf ppar psor pdir podr pdat */
  88. /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
  89. /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
  90. /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
  91. /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
  92. /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
  93. /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
  94. /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
  95. /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
  96. /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
  97. /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
  98. /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
  99. /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
  100. /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
  101. /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
  102. /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
  103. /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
  104. /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
  105. /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
  106. /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
  107. /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
  108. /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  109. /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  110. /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  111. /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
  112. /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  113. /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  114. /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  115. /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
  116. /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  117. /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  118. /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  119. /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
  120. },
  121. /* Port C */
  122. { /* conf ppar psor pdir podr pdat */
  123. /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
  124. /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
  125. /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
  126. /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
  127. /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
  128. /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
  129. /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
  130. /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
  131. /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
  132. /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
  133. /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
  134. /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
  135. /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
  136. /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
  137. /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
  138. /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
  139. /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
  140. /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
  141. /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
  142. /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
  143. /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
  144. /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
  145. /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
  146. /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
  147. /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
  148. /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
  149. /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
  150. /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
  151. /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
  152. /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
  153. /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
  154. /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
  155. },
  156. /* Port D */
  157. { /* conf ppar psor pdir podr pdat */
  158. /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
  159. /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
  160. /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
  161. /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
  162. /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
  163. /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
  164. /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
  165. /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
  166. /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
  167. /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
  168. /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
  169. /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
  170. /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
  171. /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
  172. /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
  173. /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
  174. /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
  175. /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
  176. /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
  177. /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
  178. /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
  179. /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
  180. /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
  181. /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
  182. /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
  183. /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
  184. /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
  185. /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
  186. /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  187. /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  188. /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
  189. /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
  190. }
  191. };
  192. /*
  193. * MPC8560ADS Board Status & Control Registers
  194. */
  195. typedef struct bcsr_ {
  196. volatile unsigned char bcsr0;
  197. volatile unsigned char bcsr1;
  198. volatile unsigned char bcsr2;
  199. volatile unsigned char bcsr3;
  200. volatile unsigned char bcsr4;
  201. volatile unsigned char bcsr5;
  202. } bcsr_t;
  203. void reset_phy (void)
  204. {
  205. #if defined(CONFIG_ETHER_ON_FCC) /* avoid compile warnings for now */
  206. volatile bcsr_t *bcsr = (bcsr_t *) CONFIG_SYS_BCSR;
  207. #endif
  208. /* reset Giga bit Ethernet port if needed here */
  209. /* reset the CPM FEC port */
  210. #if (CONFIG_ETHER_INDEX == 2)
  211. bcsr->bcsr2 &= ~FETH2_RST;
  212. udelay(2);
  213. bcsr->bcsr2 |= FETH2_RST;
  214. udelay(1000);
  215. #elif (CONFIG_ETHER_INDEX == 3)
  216. bcsr->bcsr3 &= ~FETH3_RST;
  217. udelay(2);
  218. bcsr->bcsr3 |= FETH3_RST;
  219. udelay(1000);
  220. #endif
  221. #if defined(CONFIG_MII) && defined(CONFIG_ETHER_ON_FCC)
  222. /* reset PHY */
  223. miiphy_reset("FCC1 ETHERNET", 0x0);
  224. /* change PHY address to 0x02 */
  225. bb_miiphy_write(NULL, 0, PHY_MIPSCR, 0xf028);
  226. bb_miiphy_write(NULL, 0x02, PHY_BMCR,
  227. PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
  228. #endif /* CONFIG_MII */
  229. }
  230. int checkboard (void)
  231. {
  232. puts("Board: ADS\n");
  233. #ifdef CONFIG_PCI
  234. printf(" PCI1: 32 bit, %d MHz (compiled)\n",
  235. CONFIG_SYS_CLK_FREQ / 1000000);
  236. #else
  237. printf(" PCI1: disabled\n");
  238. #endif
  239. /*
  240. * Initialize local bus.
  241. */
  242. local_bus_init();
  243. return 0;
  244. }
  245. phys_size_t
  246. initdram(int board_type)
  247. {
  248. long dram_size = 0;
  249. puts("Initializing\n");
  250. #if defined(CONFIG_DDR_DLL)
  251. {
  252. volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  253. uint temp_ddrdll = 0;
  254. /*
  255. * Work around to stabilize DDR DLL
  256. */
  257. temp_ddrdll = gur->ddrdllcr;
  258. gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
  259. asm("sync;isync;msync");
  260. }
  261. #endif
  262. #ifdef CONFIG_SPD_EEPROM
  263. dram_size = fsl_ddr_sdram();
  264. dram_size = setup_ddr_tlbs(dram_size / 0x100000);
  265. dram_size *= 0x100000;
  266. #else
  267. dram_size = fixed_sdram();
  268. #endif
  269. #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  270. /*
  271. * Initialize and enable DDR ECC.
  272. */
  273. ddr_enable_ecc(dram_size);
  274. #endif
  275. /*
  276. * Initialize SDRAM.
  277. */
  278. sdram_init();
  279. puts(" DDR: ");
  280. return dram_size;
  281. }
  282. /*
  283. * Initialize Local Bus
  284. */
  285. void
  286. local_bus_init(void)
  287. {
  288. volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  289. volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
  290. uint clkdiv;
  291. uint lbc_hz;
  292. sys_info_t sysinfo;
  293. /*
  294. * Errata LBC11.
  295. * Fix Local Bus clock glitch when DLL is enabled.
  296. *
  297. * If localbus freq is < 66MHz, DLL bypass mode must be used.
  298. * If localbus freq is > 133MHz, DLL can be safely enabled.
  299. * Between 66 and 133, the DLL is enabled with an override workaround.
  300. */
  301. get_sys_info(&sysinfo);
  302. clkdiv = lbc->lcrr & LCRR_CLKDIV;
  303. lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
  304. if (lbc_hz < 66) {
  305. lbc->lcrr = CONFIG_SYS_LBC_LCRR | 0x80000000; /* DLL Bypass */
  306. } else if (lbc_hz >= 133) {
  307. lbc->lcrr = CONFIG_SYS_LBC_LCRR & (~0x80000000); /* DLL Enabled */
  308. } else {
  309. /*
  310. * On REV1 boards, need to change CLKDIV before enable DLL.
  311. * Default CLKDIV is 8, change it to 4 temporarily.
  312. */
  313. uint pvr = get_pvr();
  314. uint temp_lbcdll = 0;
  315. if (pvr == PVR_85xx_REV1) {
  316. /* FIXME: Justify the high bit here. */
  317. lbc->lcrr = 0x10000004;
  318. }
  319. lbc->lcrr = CONFIG_SYS_LBC_LCRR & (~0x80000000);/* DLL Enabled */
  320. udelay(200);
  321. /*
  322. * Sample LBC DLL ctrl reg, upshift it to set the
  323. * override bits.
  324. */
  325. temp_lbcdll = gur->lbcdllcr;
  326. gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
  327. asm("sync;isync;msync");
  328. }
  329. }
  330. /*
  331. * Initialize SDRAM memory on the Local Bus.
  332. */
  333. void
  334. sdram_init(void)
  335. {
  336. volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
  337. uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
  338. puts(" SDRAM: ");
  339. print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
  340. /*
  341. * Setup SDRAM Base and Option Registers
  342. */
  343. lbc->or2 = CONFIG_SYS_OR2_PRELIM;
  344. lbc->br2 = CONFIG_SYS_BR2_PRELIM;
  345. lbc->lbcr = CONFIG_SYS_LBC_LBCR;
  346. asm("msync");
  347. lbc->lsrt = CONFIG_SYS_LBC_LSRT;
  348. lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
  349. asm("sync");
  350. /*
  351. * Configure the SDRAM controller.
  352. */
  353. lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_1;
  354. asm("sync");
  355. *sdram_addr = 0xff;
  356. ppcDcbf((unsigned long) sdram_addr);
  357. udelay(100);
  358. lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_2;
  359. asm("sync");
  360. *sdram_addr = 0xff;
  361. ppcDcbf((unsigned long) sdram_addr);
  362. udelay(100);
  363. lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_3;
  364. asm("sync");
  365. *sdram_addr = 0xff;
  366. ppcDcbf((unsigned long) sdram_addr);
  367. udelay(100);
  368. lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_4;
  369. asm("sync");
  370. *sdram_addr = 0xff;
  371. ppcDcbf((unsigned long) sdram_addr);
  372. udelay(100);
  373. lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5;
  374. asm("sync");
  375. *sdram_addr = 0xff;
  376. ppcDcbf((unsigned long) sdram_addr);
  377. udelay(100);
  378. }
  379. #if !defined(CONFIG_SPD_EEPROM)
  380. /*************************************************************************
  381. * fixed sdram init -- doesn't use serial presence detect.
  382. ************************************************************************/
  383. long int fixed_sdram (void)
  384. {
  385. #ifndef CONFIG_SYS_RAMBOOT
  386. volatile ccsr_ddr_t *ddr= (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
  387. ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
  388. ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
  389. ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
  390. ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
  391. ddr->sdram_mode = CONFIG_SYS_DDR_MODE;
  392. ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
  393. #if defined (CONFIG_DDR_ECC)
  394. ddr->err_disable = 0x0000000D;
  395. ddr->err_sbe = 0x00ff0000;
  396. #endif
  397. asm("sync;isync;msync");
  398. udelay(500);
  399. #if defined (CONFIG_DDR_ECC)
  400. /* Enable ECC checking */
  401. ddr->sdram_cfg = (CONFIG_SYS_DDR_CONTROL | 0x20000000);
  402. #else
  403. ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
  404. #endif
  405. asm("sync; isync; msync");
  406. udelay(500);
  407. #endif
  408. return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
  409. }
  410. #endif /* !defined(CONFIG_SPD_EEPROM) */
  411. #if defined(CONFIG_PCI)
  412. /*
  413. * Initialize PCI Devices, report devices found.
  414. */
  415. #ifndef CONFIG_PCI_PNP
  416. static struct pci_config_table pci_mpc85xxads_config_table[] = {
  417. { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
  418. PCI_IDSEL_NUMBER, PCI_ANY_ID,
  419. pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
  420. PCI_ENET0_MEMADDR,
  421. PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
  422. } },
  423. { }
  424. };
  425. #endif
  426. static struct pci_controller hose = {
  427. #ifndef CONFIG_PCI_PNP
  428. config_table: pci_mpc85xxads_config_table,
  429. #endif
  430. };
  431. #endif /* CONFIG_PCI */
  432. void
  433. pci_init_board(void)
  434. {
  435. #ifdef CONFIG_PCI
  436. pci_mpc85xx_init(&hose);
  437. #endif /* CONFIG_PCI */
  438. }
  439. #if defined(CONFIG_OF_BOARD_SETUP)
  440. void
  441. ft_board_setup(void *blob, bd_t *bd)
  442. {
  443. int node, tmp[2];
  444. const char *path;
  445. ft_cpu_setup(blob, bd);
  446. node = fdt_path_offset(blob, "/aliases");
  447. tmp[0] = 0;
  448. if (node >= 0) {
  449. #ifdef CONFIG_PCI
  450. path = fdt_getprop(blob, node, "pci0", NULL);
  451. if (path) {
  452. tmp[1] = hose.last_busno - hose.first_busno;
  453. do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
  454. }
  455. #endif
  456. }
  457. }
  458. #endif