uc100.h 18 KB

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  1. /*
  2. * (C) Copyright 2000-2005
  3. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. /*
  24. * board/config.h - configuration options, board specific
  25. */
  26. #ifndef __CONFIG_H
  27. #define __CONFIG_H
  28. /*
  29. * High Level Configuration Options
  30. * (easy to change)
  31. */
  32. #define CONFIG_MPC860 1
  33. #define CONFIG_MPC860T 1
  34. #define CONFIG_MPC862 1 /* enable 862 since the */
  35. #define CONFIG_MPC857 1 /* 857 is a variant of the 862 */
  36. #define CONFIG_UC100 1 /* ...on a UC100 module */
  37. #define MPC8XX_FACT 4 /* Multiply by 4 */
  38. #define MPC8XX_XIN 25000000 /* 25.0 MHz in */
  39. #define CONFIG_8xx_GCLK_FREQ (MPC8XX_FACT * MPC8XX_XIN)
  40. /* define if cant' use get_gclk_freq */
  41. #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
  42. #undef CONFIG_8xx_CONS_SMC2
  43. #undef CONFIG_8xx_CONS_NONE
  44. #define CONFIG_MISC_INIT_R 1 /* call misc_init_r() */
  45. #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
  46. #define CONFIG_BOOTCOUNT_LIMIT
  47. #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
  48. #define CONFIG_BOARD_TYPES 1 /* support board types */
  49. #define CONFIG_PREBOOT "echo;" \
  50. "echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;" \
  51. "echo"
  52. #undef CONFIG_BOOTARGS
  53. #define CONFIG_EXTRA_ENV_SETTINGS \
  54. "netdev=eth0\0" \
  55. "nfsargs=setenv bootargs root=/dev/nfs rw " \
  56. "nfsroot=${serverip}:${rootpath}\0" \
  57. "ramargs=setenv bootargs root=/dev/ram rw\0" \
  58. "addip=setenv bootargs ${bootargs} " \
  59. "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
  60. ":${hostname}:${netdev}:off panic=1\0" \
  61. "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
  62. "flash_nfs=run nfsargs addip addtty;" \
  63. "bootm ${kernel_addr}\0" \
  64. "flash_self=run ramargs addip addtty;" \
  65. "bootm ${kernel_addr} ${ramdisk_addr}\0" \
  66. "net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;" \
  67. "bootm\0" \
  68. "rootpath=/opt/eldk/ppc_8xx\0" \
  69. "bootfile=/tftpboot/uc100/uImage\0" \
  70. "kernel_addr=40000000\0" \
  71. "ramdisk_addr=40100000\0" \
  72. "load=tftp 100000 /tftpboot/uc100/u-boot.bin\0" \
  73. "update=protect off 40700000 4073ffff;era 40700000 4073ffff;" \
  74. "cp.b 100000 40700000 ${filesize};" \
  75. "setenv filesize;saveenv\0" \
  76. ""
  77. #define CONFIG_BOOTCOMMAND "run flash_self"
  78. #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
  79. #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
  80. #undef CONFIG_WATCHDOG /* watchdog disabled */
  81. #undef CONFIG_STATUS_LED /* no status-led */
  82. /*
  83. * BOOTP options
  84. */
  85. #define CONFIG_BOOTP_SUBNETMASK
  86. #define CONFIG_BOOTP_GATEWAY
  87. #define CONFIG_BOOTP_HOSTNAME
  88. #define CONFIG_BOOTP_BOOTPATH
  89. #define CONFIG_BOOTP_BOOTFILESIZE
  90. #define CONFIG_MAC_PARTITION
  91. #define CONFIG_DOS_PARTITION
  92. #undef CONFIG_RTC_MPC8xx
  93. #define CONFIG_SYS_I2C_RTC_ADDR 0x51 /* PCF8563 RTC */
  94. #define CONFIG_RTC_PCF8563 /* use Philips PCF8563 RTC */
  95. /*
  96. * Power On Self Test support
  97. */
  98. #define CONFIG_POST ( CONFIG_SYS_POST_CACHE | \
  99. CONFIG_SYS_POST_MEMORY | \
  100. CONFIG_SYS_POST_CPU | \
  101. CONFIG_SYS_POST_UART | \
  102. CONFIG_SYS_POST_SPR )
  103. #undef CONFIG_POST
  104. /*
  105. * Command line configuration.
  106. */
  107. #include <config_cmd_default.h>
  108. #define CONFIG_CMD_ASKENV
  109. #define CONFIG_CMD_DATE
  110. #define CONFIG_CMD_DHCP
  111. #define CONFIG_CMD_EEPROM
  112. #define CONFIG_CMD_ELF
  113. #define CONFIG_CMD_FAT
  114. #define CONFIG_CMD_I2C
  115. #define CONFIG_CMD_IDE
  116. #define CONFIG_CMD_MII
  117. #define CONFIG_CMD_NFS
  118. #define CONFIG_CMD_PING
  119. #define CONFIG_CMD_SNTP
  120. #ifdef CONFIG_POST
  121. #define CONFIG_CMD_DIAG
  122. #endif
  123. #define CONFIG_NETCONSOLE
  124. /*
  125. * Miscellaneous configurable options
  126. */
  127. #define CONFIG_SYS_LONGHELP /* undef to save memory */
  128. #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
  129. #if 0
  130. #define CONFIG_SYS_HUSH_PARSER 1 /* use "hush" command parser */
  131. #endif
  132. #ifdef CONFIG_SYS_HUSH_PARSER
  133. #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
  134. #endif
  135. #if defined(CONFIG_CMD_KGDB)
  136. #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
  137. #else
  138. #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
  139. #endif
  140. #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
  141. #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
  142. #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
  143. #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
  144. #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
  145. #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
  146. #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
  147. #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
  148. #define CONFIG_AUTO_COMPLETE 1 /* add autocompletion support */
  149. /*
  150. * Low Level Configuration Settings
  151. * (address mappings, register initial values, etc.)
  152. * You should know what you are doing if you make changes here.
  153. */
  154. /*-----------------------------------------------------------------------
  155. * Internal Memory Mapped Register
  156. */
  157. #define CONFIG_SYS_IMMR 0xF0000000
  158. /*-----------------------------------------------------------------------
  159. * Definitions for initial stack pointer and data area (in DPRAM)
  160. */
  161. #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
  162. #define CONFIG_SYS_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
  163. #define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
  164. #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
  165. #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
  166. /*-----------------------------------------------------------------------
  167. * Start addresses for the final memory configuration
  168. * (Set up by the startup code)
  169. * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
  170. */
  171. #define CONFIG_SYS_SDRAM_BASE 0x00000000
  172. #define CONFIG_SYS_FLASH_BASE 0x40000000
  173. #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
  174. #define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_FLASH_BASE+0x00700000) /* resetvec fff00100*/
  175. #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
  176. /*-----------------------------------------------------------------------
  177. * Address accessed to reset the board - must not be mapped/assigned
  178. */
  179. #define CONFIG_SYS_RESET_ADDRESS 0x90000000
  180. /*
  181. * For booting Linux, the board info and command line data
  182. * have to be in the first 8 MB of memory, since this is
  183. * the maximum mapped by the Linux kernel during initialization.
  184. */
  185. #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
  186. /*-----------------------------------------------------------------------
  187. * FLASH organization
  188. */
  189. #define CONFIG_SYS_FLASH_CFI /* The flash is CFI compatible */
  190. #define CONFIG_FLASH_CFI_DRIVER /* Use common CFI driver */
  191. #define CONFIG_SYS_FLASH_CFI_AMD_RESET 1 /* AMD RESET for STM 29W320DB! */
  192. #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
  193. #define CONFIG_SYS_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
  194. #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
  195. #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
  196. #define CONFIG_SYS_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */
  197. #define CONFIG_ENV_IS_IN_FLASH 1
  198. #define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN)
  199. #define CONFIG_ENV_SECT_SIZE 0x20000 /* size of one complete sector */
  200. #define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
  201. /* Address and size of Redundant Environment Sector */
  202. #define CONFIG_ENV_ADDR_REDUND (CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE)
  203. #define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE)
  204. /*-----------------------------------------------------------------------
  205. * Cache Configuration
  206. */
  207. #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
  208. #if defined(CONFIG_CMD_KGDB)
  209. #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
  210. #endif
  211. /*-----------------------------------------------------------------------
  212. * SYPCR - System Protection Control 11-9
  213. * SYPCR can only be written once after reset!
  214. *-----------------------------------------------------------------------
  215. * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
  216. */
  217. #if defined(CONFIG_WATCHDOG)
  218. #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
  219. SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
  220. #else
  221. #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
  222. #endif
  223. /*-----------------------------------------------------------------------
  224. * SIUMCR - SIU Module Configuration 11-6
  225. *-----------------------------------------------------------------------
  226. * PCMCIA config., multi-function pin tri-state
  227. */
  228. #define CONFIG_SYS_SIUMCR (SIUMCR_FRC | SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
  229. /*-----------------------------------------------------------------------
  230. * TBSCR - Time Base Status and Control 11-26
  231. *-----------------------------------------------------------------------
  232. * Clear Reference Interrupt Status, Timebase freezing enabled
  233. */
  234. #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
  235. /*-----------------------------------------------------------------------
  236. * RTCSC - Real-Time Clock Status and Control Register 11-27
  237. *-----------------------------------------------------------------------
  238. */
  239. #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
  240. /*-----------------------------------------------------------------------
  241. * PISCR - Periodic Interrupt Status and Control 11-31
  242. *-----------------------------------------------------------------------
  243. * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
  244. */
  245. #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
  246. /*-----------------------------------------------------------------------
  247. * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
  248. *-----------------------------------------------------------------------
  249. * Reset PLL lock status sticky bit, timer expired status bit and timer
  250. * interrupt status bit
  251. */
  252. #define CONFIG_SYS_PLPRCR (((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) | \
  253. PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
  254. /*-----------------------------------------------------------------------
  255. * SCCR - System Clock and reset Control Register 15-27
  256. *-----------------------------------------------------------------------
  257. * Set clock output, timebase and RTC source and divider,
  258. * power management and some other internal clocks
  259. */
  260. #define SCCR_MASK 0x00000000
  261. #define CONFIG_SYS_SCCR (SCCR_EBDF11)
  262. /*-----------------------------------------------------------------------
  263. * PCMCIA stuff
  264. *-----------------------------------------------------------------------
  265. *
  266. */
  267. #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
  268. #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
  269. #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
  270. #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
  271. #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
  272. #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
  273. #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
  274. #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
  275. /*-----------------------------------------------------------------------
  276. * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
  277. *-----------------------------------------------------------------------
  278. */
  279. #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
  280. #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
  281. #undef CONFIG_IDE_LED /* LED for ide not supported */
  282. #undef CONFIG_IDE_RESET /* reset for ide not supported */
  283. #define CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */
  284. #define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
  285. #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
  286. #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
  287. /* Offset for data I/O */
  288. #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
  289. /* Offset for normal register accesses */
  290. #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
  291. /* Offset for alternate registers */
  292. #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
  293. /*-----------------------------------------------------------------------
  294. *
  295. *-----------------------------------------------------------------------
  296. *
  297. */
  298. #define CONFIG_SYS_DER 0
  299. /*
  300. * Init Memory Controller:
  301. *
  302. * BR0/1 and OR0/1 (FLASH)
  303. */
  304. #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
  305. #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */
  306. /* used to re-map FLASH both when starting from SRAM or FLASH:
  307. * restrict access enough to keep SRAM working (if any)
  308. * but not too much to meddle with FLASH accesses
  309. */
  310. #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
  311. #define CONFIG_SYS_PRELIM_OR_AM 0xFF800000 /* OR addr mask */
  312. /*
  313. * FLASH timing:
  314. */
  315. #define CONFIG_SYS_OR_TIMING_FLASH (0x00000d24)
  316. #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
  317. #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
  318. #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
  319. #define CONFIG_SYS_BR1_PRELIM 0x00000081 /* Chip select for SDRAM (32 Bit, UPMA) */
  320. #define CONFIG_SYS_OR1_PRELIM 0xfc000a00
  321. #define CONFIG_SYS_BR2_PRELIM 0x80000001 /* Chip select for SRAM (32 Bit, GPCM) */
  322. #define CONFIG_SYS_OR2_PRELIM 0xfff00d24
  323. #define CONFIG_SYS_BR3_PRELIM 0x80600401 /* Chip select for Display (8 Bit, GPCM) */
  324. #define CONFIG_SYS_OR3_PRELIM 0xffff8f44
  325. #define CONFIG_SYS_BR4_PRELIM 0xc05108c1 /* Chip select for Interbus MPM (16 Bit, UPMB) */
  326. #define CONFIG_SYS_OR4_PRELIM 0xffff0300
  327. #define CONFIG_SYS_BR5_PRELIM 0xc0500401 /* Chip select for Interbus Status (8 Bit, GPCM) */
  328. #define CONFIG_SYS_OR5_PRELIM 0xffff8db0
  329. /*
  330. * Memory Periodic Timer Prescaler
  331. *
  332. * The Divider for PTA (refresh timer) configuration is based on an
  333. * example SDRAM configuration (64 MBit, one bank). The adjustment to
  334. * the number of chip selects (NCS) and the actually needed refresh
  335. * rate is done by setting MPTPR.
  336. *
  337. * PTA is calculated from
  338. * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
  339. *
  340. * gclk CPU clock (not bus clock!)
  341. * Trefresh Refresh cycle * 4 (four word bursts used)
  342. *
  343. * 4096 Rows from SDRAM example configuration
  344. * 1000 factor s -> ms
  345. * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
  346. * 4 Number of refresh cycles per period
  347. * 64 Refresh cycle in ms per number of rows
  348. * --------------------------------------------
  349. * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
  350. *
  351. * 50 MHz => 50.000.000 / Divider = 98
  352. * 66 Mhz => 66.000.000 / Divider = 129
  353. * 80 Mhz => 80.000.000 / Divider = 156
  354. * 100 Mhz => 100.000.000 / Divider = 195
  355. */
  356. #define CONFIG_SYS_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64))
  357. #define CONFIG_SYS_MAMR_PTA 98
  358. /*
  359. * For 16 MBit, refresh rates could be 31.3 us
  360. * (= 64 ms / 2K = 125 / quad bursts).
  361. * For a simpler initialization, 15.6 us is used instead.
  362. *
  363. * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
  364. * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
  365. */
  366. #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
  367. #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
  368. /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
  369. #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
  370. #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
  371. /*
  372. * MAMR settings for SDRAM
  373. */
  374. /* 8 column SDRAM */
  375. #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  376. MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
  377. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  378. /* 9 column SDRAM */
  379. #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  380. MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
  381. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  382. #define CONFIG_SYS_MAMR_VAL 0x30904114 /* for SDRAM */
  383. #define CONFIG_SYS_MBMR_VAL 0xff001111 /* for Interbus-MPM */
  384. /*-----------------------------------------------------------------------
  385. * I2C stuff
  386. */
  387. /* enable I2C and select the hardware/software driver */
  388. #undef CONFIG_HARD_I2C /* I2C with hardware support */
  389. #define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
  390. #define CONFIG_SYS_I2C_SPEED 93000 /* 93 kHz is supposed to work */
  391. #define CONFIG_SYS_I2C_SLAVE 0xFE
  392. #ifdef CONFIG_SOFT_I2C
  393. /*
  394. * Software (bit-bang) I2C driver configuration
  395. */
  396. #define PB_SCL 0x00000020 /* PB 26 */
  397. #define PB_SDA 0x00000010 /* PB 27 */
  398. #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
  399. #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
  400. #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
  401. #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
  402. #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
  403. else immr->im_cpm.cp_pbdat &= ~PB_SDA
  404. #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
  405. else immr->im_cpm.cp_pbdat &= ~PB_SCL
  406. #define I2C_DELAY udelay(2) /* 1/4 I2C clock duration */
  407. #endif /* CONFIG_SOFT_I2C */
  408. /*-----------------------------------------------------------------------
  409. * I2C EEPROM (24C164)
  410. */
  411. #define CONFIG_SYS_I2C_EEPROM_ADDR 0x58 /* EEPROM AT24C164 */
  412. #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1
  413. #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 /* takes up to 10 msec */
  414. #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 4
  415. /*
  416. * Internal Definitions
  417. *
  418. * Boot Flags
  419. */
  420. #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
  421. #define BOOTFLAG_WARM 0x02 /* Software reboot */
  422. #define CONFIG_FEC_ENET 1 /* use FEC ethernet */
  423. #define FEC_ENET
  424. #define CONFIG_MII
  425. #define CONFIG_MII_INIT 1
  426. #define CONFIG_SYS_DISCOVER_PHY 1
  427. #endif /* __CONFIG_H */