TQM866M.h 18 KB

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  1. /*
  2. * (C) Copyright 2000-2008
  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_MPC866 1 /* This is a MPC866 CPU */
  33. #define CONFIG_TQM866M 1 /* ...on a TQM8xxM module */
  34. #define CONFIG_8xx_OSCLK 10000000 /* 10 MHz - PLL input clock */
  35. #define CONFIG_SYS_8xx_CPUCLK_MIN 15000000 /* 15 MHz - CPU minimum clock */
  36. #define CONFIG_SYS_8xx_CPUCLK_MAX 133000000 /* 133 MHz - CPU maximum clock */
  37. #define CONFIG_8xx_CPUCLK_DEFAULT 50000000 /* 50 MHz - CPU default clock */
  38. /* (it will be used if there is no */
  39. /* 'cpuclk' variable with valid value) */
  40. #undef CONFIG_SYS_MEASURE_CPUCLK /* Measure real cpu clock */
  41. /* (function measure_gclk() */
  42. /* will be called) */
  43. #ifdef CONFIG_SYS_MEASURE_CPUCLK
  44. #define CONFIG_SYS_8XX_XIN 10000000 /* measure_gclk() needs this */
  45. #endif
  46. #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
  47. #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
  48. #define CONFIG_BOOTCOUNT_LIMIT
  49. #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
  50. #define CONFIG_BOARD_TYPES 1 /* support board types */
  51. #define CONFIG_PREBOOT "echo;" \
  52. "echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;" \
  53. "echo"
  54. #undef CONFIG_BOOTARGS
  55. #define CONFIG_EXTRA_ENV_SETTINGS \
  56. "netdev=eth0\0" \
  57. "nfsargs=setenv bootargs root=/dev/nfs rw " \
  58. "nfsroot=${serverip}:${rootpath}\0" \
  59. "ramargs=setenv bootargs root=/dev/ram rw\0" \
  60. "addip=setenv bootargs ${bootargs} " \
  61. "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
  62. ":${hostname}:${netdev}:off panic=1\0" \
  63. "flash_nfs=run nfsargs addip;" \
  64. "bootm ${kernel_addr}\0" \
  65. "flash_self=run ramargs addip;" \
  66. "bootm ${kernel_addr} ${ramdisk_addr}\0" \
  67. "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \
  68. "rootpath=/opt/eldk/ppc_8xx\0" \
  69. "hostname=TQM866M\0" \
  70. "bootfile=TQM866M/uImage\0" \
  71. "fdt_addr=400C0000\0" \
  72. "kernel_addr=40100000\0" \
  73. "ramdisk_addr=40280000\0" \
  74. "u-boot=TQM866M/u-image.bin\0" \
  75. "load=tftp 200000 ${u-boot}\0" \
  76. "update=prot off 40000000 +${filesize};" \
  77. "era 40000000 +${filesize};" \
  78. "cp.b 200000 40000000 ${filesize};" \
  79. "sete filesize;save\0" \
  80. ""
  81. #define CONFIG_BOOTCOMMAND "run flash_self"
  82. #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
  83. #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
  84. #undef CONFIG_WATCHDOG /* watchdog disabled */
  85. #define CONFIG_STATUS_LED 1 /* Status LED enabled */
  86. #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
  87. /* enable I2C and select the hardware/software driver */
  88. #undef CONFIG_HARD_I2C /* I2C with hardware support */
  89. #define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
  90. #define CONFIG_SYS_I2C_SPEED 93000 /* 93 kHz is supposed to work */
  91. #define CONFIG_SYS_I2C_SLAVE 0xFE
  92. #ifdef CONFIG_SOFT_I2C
  93. /*
  94. * Software (bit-bang) I2C driver configuration
  95. */
  96. #define PB_SCL 0x00000020 /* PB 26 */
  97. #define PB_SDA 0x00000010 /* PB 27 */
  98. #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
  99. #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
  100. #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
  101. #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
  102. #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
  103. else immr->im_cpm.cp_pbdat &= ~PB_SDA
  104. #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
  105. else immr->im_cpm.cp_pbdat &= ~PB_SCL
  106. #define I2C_DELAY udelay(2) /* 1/4 I2C clock duration */
  107. #endif /* CONFIG_SOFT_I2C */
  108. #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* EEPROM AT24C256 */
  109. #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2 /* two byte address */
  110. #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 4
  111. #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */
  112. /*
  113. * BOOTP options
  114. */
  115. #define CONFIG_BOOTP_SUBNETMASK
  116. #define CONFIG_BOOTP_GATEWAY
  117. #define CONFIG_BOOTP_HOSTNAME
  118. #define CONFIG_BOOTP_BOOTPATH
  119. #define CONFIG_BOOTP_BOOTFILESIZE
  120. #define CONFIG_MAC_PARTITION
  121. #define CONFIG_DOS_PARTITION
  122. #undef CONFIG_RTC_MPC8xx /* MPC866 does not support RTC */
  123. #define CONFIG_TIMESTAMP /* but print image timestmps */
  124. /*
  125. * Command line configuration.
  126. */
  127. #include <config_cmd_default.h>
  128. #define CONFIG_CMD_ASKENV
  129. #define CONFIG_CMD_DHCP
  130. #define CONFIG_CMD_EEPROM
  131. #define CONFIG_CMD_ELF
  132. #define CONFIG_CMD_EXT2
  133. #define CONFIG_CMD_IDE
  134. #define CONFIG_CMD_JFFS2
  135. #define CONFIG_CMD_NFS
  136. #define CONFIG_CMD_SNTP
  137. #define CONFIG_NETCONSOLE
  138. /*
  139. * Miscellaneous configurable options
  140. */
  141. #define CONFIG_SYS_LONGHELP /* undef to save memory */
  142. #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
  143. #define CONFIG_CMDLINE_EDITING 1 /* add command line history */
  144. #define CONFIG_SYS_HUSH_PARSER 1 /* Use the HUSH parser */
  145. #ifdef CONFIG_SYS_HUSH_PARSER
  146. #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
  147. #endif
  148. #if defined(CONFIG_CMD_KGDB)
  149. #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
  150. #else
  151. #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
  152. #endif
  153. #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
  154. #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
  155. #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
  156. #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
  157. #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
  158. #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
  159. #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
  160. #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
  161. /*
  162. * Low Level Configuration Settings
  163. * (address mappings, register initial values, etc.)
  164. * You should know what you are doing if you make changes here.
  165. */
  166. /*-----------------------------------------------------------------------
  167. * Internal Memory Mapped Register
  168. */
  169. #define CONFIG_SYS_IMMR 0xFFF00000
  170. /*-----------------------------------------------------------------------
  171. * Definitions for initial stack pointer and data area (in DPRAM)
  172. */
  173. #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
  174. #define CONFIG_SYS_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
  175. #define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
  176. #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
  177. #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
  178. /*-----------------------------------------------------------------------
  179. * Start addresses for the final memory configuration
  180. * (Set up by the startup code)
  181. * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
  182. */
  183. #define CONFIG_SYS_SDRAM_BASE 0x00000000
  184. #define CONFIG_SYS_FLASH_BASE 0x40000000
  185. #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
  186. #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
  187. #define CONFIG_SYS_MALLOC_LEN (256 << 10) /* Reserve 256 kB for malloc() */
  188. /*
  189. * For booting Linux, the board info and command line data
  190. * have to be in the first 8 MB of memory, since this is
  191. * the maximum mapped by the Linux kernel during initialization.
  192. */
  193. #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
  194. /*-----------------------------------------------------------------------
  195. * FLASH organization
  196. */
  197. /* use CFI flash driver */
  198. #define CONFIG_SYS_FLASH_CFI 1 /* Flash is CFI conformant */
  199. #define CONFIG_FLASH_CFI_DRIVER 1 /* Use the common driver */
  200. #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE }
  201. #define CONFIG_SYS_FLASH_EMPTY_INFO
  202. #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1
  203. #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
  204. #define CONFIG_SYS_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
  205. #define CONFIG_ENV_IS_IN_FLASH 1
  206. #define CONFIG_ENV_OFFSET 0x40000 /* Offset of Environment Sector */
  207. #define CONFIG_ENV_SIZE 0x08000 /* Total Size of Environment Sector */
  208. #define CONFIG_ENV_SECT_SIZE 0x40000 /* Total Size of Environment Sector */
  209. /* Address and size of Redundant Environment Sector */
  210. #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET+CONFIG_ENV_SECT_SIZE)
  211. #define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE)
  212. #define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */
  213. #define CONFIG_MISC_INIT_R /* Make sure to remap flashes correctly */
  214. /*-----------------------------------------------------------------------
  215. * Dynamic MTD partition support
  216. */
  217. #define CONFIG_CMD_MTDPARTS
  218. #define CONFIG_MTD_DEVICE /* needed for mtdparts commands */
  219. #define CONFIG_FLASH_CFI_MTD
  220. #define MTDIDS_DEFAULT "nor0=TQM8xxM-0"
  221. #define MTDPARTS_DEFAULT "mtdparts=TQM8xxM-0:512k(u-boot)," \
  222. "128k(dtb)," \
  223. "1920k(kernel)," \
  224. "5632(rootfs)," \
  225. "4m(data)"
  226. /*-----------------------------------------------------------------------
  227. * Hardware Information Block
  228. */
  229. #define CONFIG_SYS_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */
  230. #define CONFIG_SYS_HWINFO_SIZE 0x00000040 /* size of HW Info block */
  231. #define CONFIG_SYS_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */
  232. /*-----------------------------------------------------------------------
  233. * Cache Configuration
  234. */
  235. #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
  236. #if defined(CONFIG_CMD_KGDB)
  237. #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
  238. #endif
  239. /*-----------------------------------------------------------------------
  240. * SYPCR - System Protection Control 11-9
  241. * SYPCR can only be written once after reset!
  242. *-----------------------------------------------------------------------
  243. * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
  244. */
  245. #if defined(CONFIG_WATCHDOG)
  246. #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
  247. SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
  248. #else
  249. #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
  250. #endif
  251. /*-----------------------------------------------------------------------
  252. * SIUMCR - SIU Module Configuration 11-6
  253. *-----------------------------------------------------------------------
  254. * PCMCIA config., multi-function pin tri-state
  255. */
  256. #ifndef CONFIG_CAN_DRIVER
  257. #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
  258. #else /* we must activate GPL5 in the SIUMCR for CAN */
  259. #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
  260. #endif /* CONFIG_CAN_DRIVER */
  261. /*-----------------------------------------------------------------------
  262. * TBSCR - Time Base Status and Control 11-26
  263. *-----------------------------------------------------------------------
  264. * Clear Reference Interrupt Status, Timebase freezing enabled
  265. */
  266. #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
  267. /*-----------------------------------------------------------------------
  268. * PISCR - Periodic Interrupt Status and Control 11-31
  269. *-----------------------------------------------------------------------
  270. * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
  271. */
  272. #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
  273. /*-----------------------------------------------------------------------
  274. * SCCR - System Clock and reset Control Register 15-27
  275. *-----------------------------------------------------------------------
  276. * Set clock output, timebase and RTC source and divider,
  277. * power management and some other internal clocks
  278. */
  279. #define SCCR_MASK SCCR_EBDF11
  280. #define CONFIG_SYS_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
  281. SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
  282. SCCR_DFALCD00)
  283. /*-----------------------------------------------------------------------
  284. * PCMCIA stuff
  285. *-----------------------------------------------------------------------
  286. *
  287. */
  288. #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
  289. #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
  290. #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
  291. #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
  292. #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
  293. #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
  294. #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
  295. #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
  296. /*-----------------------------------------------------------------------
  297. * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
  298. *-----------------------------------------------------------------------
  299. */
  300. #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
  301. #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
  302. #undef CONFIG_IDE_LED /* LED for ide not supported */
  303. #undef CONFIG_IDE_RESET /* reset for ide not supported */
  304. #define CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */
  305. #define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
  306. #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
  307. #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
  308. /* Offset for data I/O */
  309. #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
  310. /* Offset for normal register accesses */
  311. #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
  312. /* Offset for alternate registers */
  313. #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
  314. /*-----------------------------------------------------------------------
  315. *
  316. *-----------------------------------------------------------------------
  317. *
  318. */
  319. #define CONFIG_SYS_DER 0
  320. /*
  321. * Init Memory Controller:
  322. *
  323. * BR0/1 and OR0/1 (FLASH)
  324. */
  325. #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
  326. #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */
  327. /* used to re-map FLASH both when starting from SRAM or FLASH:
  328. * restrict access enough to keep SRAM working (if any)
  329. * but not too much to meddle with FLASH accesses
  330. */
  331. #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
  332. #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
  333. /*
  334. * FLASH timing: Default value of OR0 after reset
  335. */
  336. #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_MSK | OR_BI | \
  337. OR_SCY_15_CLK | OR_TRLX)
  338. #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
  339. #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
  340. #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
  341. #define CONFIG_SYS_OR1_REMAP CONFIG_SYS_OR0_REMAP
  342. #define CONFIG_SYS_OR1_PRELIM CONFIG_SYS_OR0_PRELIM
  343. #define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
  344. /*
  345. * BR2/3 and OR2/3 (SDRAM)
  346. *
  347. */
  348. #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
  349. #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
  350. #define SDRAM_MAX_SIZE (256 << 20) /* max 256 MB per bank */
  351. /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
  352. #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000A00
  353. #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM )
  354. #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
  355. #ifndef CONFIG_CAN_DRIVER
  356. #define CONFIG_SYS_OR3_PRELIM CONFIG_SYS_OR2_PRELIM
  357. #define CONFIG_SYS_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
  358. #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
  359. #define CONFIG_SYS_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
  360. #define CONFIG_SYS_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
  361. #define CONFIG_SYS_OR3_CAN (CONFIG_SYS_CAN_OR_AM | OR_G5LA | OR_BI)
  362. #define CONFIG_SYS_BR3_CAN ((CONFIG_SYS_CAN_BASE & BR_BA_MSK) | \
  363. BR_PS_8 | BR_MS_UPMB | BR_V )
  364. #endif /* CONFIG_CAN_DRIVER */
  365. /*
  366. * 4096 Rows from SDRAM example configuration
  367. * 1000 factor s -> ms
  368. * 64 PTP (pre-divider from MPTPR) from SDRAM example configuration
  369. * 4 Number of refresh cycles per period
  370. * 64 Refresh cycle in ms per number of rows
  371. */
  372. #define CONFIG_SYS_PTA_PER_CLK ((4096 * 64 * 1000) / (4 * 64))
  373. /*
  374. * Periodic timer (MAMR[PTx]) for 4 * 7.8 us refresh (= 31.2 us per quad)
  375. *
  376. * CPUclock(MHz) * 31.2
  377. * CONFIG_SYS_MAMR_PTA = ----------------------------------- with DFBRG = 0
  378. * 2^(2*SCCR[DFBRG]) * MPTPR_PTP_DIV16
  379. *
  380. * CPU clock = 15 MHz: CONFIG_SYS_MAMR_PTA = 29 -> 4 * 7.73 us
  381. * CPU clock = 50 MHz: CONFIG_SYS_MAMR_PTA = 97 -> 4 * 7.76 us
  382. * CPU clock = 66 MHz: CONFIG_SYS_MAMR_PTA = 128 -> 4 * 7.75 us
  383. * CPU clock = 133 MHz: CONFIG_SYS_MAMR_PTA = 255 -> 4 * 7.67 us
  384. *
  385. * Value 97 is for 4 * 7.8 us at 50 MHz. So the refresh cycle requirement will
  386. * be met also in the default configuration, i.e. if environment variable
  387. * 'cpuclk' is not set.
  388. */
  389. #define CONFIG_SYS_MAMR_PTA 97
  390. /*
  391. * Memory Periodic Timer Prescaler Register (MPTPR) values.
  392. */
  393. /* 4 * 7.8 us refresh (= 31.2 us per quad) at 50 MHz and PTA = 97 */
  394. #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16
  395. /* 4 * 3.9 us refresh (= 15.6 us per quad) at 50 MHz and PTA = 97 */
  396. #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8
  397. /*
  398. * MAMR settings for SDRAM
  399. */
  400. /* 8 column SDRAM */
  401. #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  402. MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
  403. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  404. /* 9 column SDRAM */
  405. #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  406. MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
  407. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  408. /* 10 column SDRAM */
  409. #define CONFIG_SYS_MAMR_10COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  410. MAMR_AMA_TYPE_2 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A9 | \
  411. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  412. /*
  413. * Internal Definitions
  414. *
  415. * Boot Flags
  416. */
  417. #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
  418. #define BOOTFLAG_WARM 0x02 /* Software reboot */
  419. #define CONFIG_SCC1_ENET
  420. #define CONFIG_FEC_ENET
  421. #define CONFIG_ETHPRIME "SCC ETHERNET"
  422. #endif /* __CONFIG_H */