hymod.h 21 KB

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  1. /*
  2. * (C) Copyright 2000
  3. * Murray Jensen <Murray.Jensen@cmst.csiro.au>
  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. * Config header file for Hymod board
  25. */
  26. #ifndef __CONFIG_H
  27. #define __CONFIG_H
  28. /*
  29. * High Level Configuration Options
  30. * (easy to change)
  31. */
  32. #define CONFIG_MPC8260 1 /* This is an MPC8260 CPU */
  33. #define CONFIG_HYMOD 1 /* ...on a Hymod board */
  34. #define CONFIG_BOARD_POSTCLK_INIT /* have board_postclk_init() function */
  35. /*
  36. * select serial console configuration
  37. *
  38. * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
  39. * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
  40. * for SCC).
  41. *
  42. * if CONFIG_CONS_NONE is defined, then the serial console routines must
  43. * defined elsewhere (for example, on the cogent platform, there are serial
  44. * ports on the motherboard which are used for the serial console - see
  45. * cogent/cma101/serial.[ch]).
  46. */
  47. #undef CONFIG_CONS_ON_SMC /* define if console on SMC */
  48. #define CONFIG_CONS_ON_SCC /* define if console on SCC */
  49. #undef CONFIG_CONS_NONE /* define if console on something else*/
  50. #define CONFIG_CONS_INDEX 1 /* which serial channel for console */
  51. #define CONFIG_CONS_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
  52. #define CONFIG_CONS_EXTC_RATE 3686400 /* SMC/SCC ext clk rate in Hz */
  53. #define CONFIG_CONS_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
  54. /*
  55. * select ethernet configuration
  56. *
  57. * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
  58. * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
  59. * for FCC)
  60. *
  61. * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
  62. * defined elsewhere (as for the console), or CFG_CMD_NET must be removed
  63. * from CONFIG_COMMANDS to remove support for networking.
  64. */
  65. #undef CONFIG_ETHER_ON_SCC /* define if ether on SCC */
  66. #define CONFIG_ETHER_ON_FCC /* define if ether on FCC */
  67. #undef CONFIG_ETHER_NONE /* define if ether on something else */
  68. #define CONFIG_ETHER_INDEX 1 /* which channel for ether */
  69. #if (CONFIG_ETHER_INDEX == 1)
  70. /*
  71. * - Rx-CLK is CLK10
  72. * - Tx-CLK is CLK11
  73. * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
  74. * - Enable Full Duplex in FSMR
  75. */
  76. # define CFG_CMXFCR_MASK (CMXFCR_FC1|CMXFCR_RF1CS_MSK|CMXFCR_TF1CS_MSK)
  77. # define CFG_CMXFCR_VALUE (CMXFCR_RF1CS_CLK10|CMXFCR_TF1CS_CLK11)
  78. # define CFG_CPMFCR_RAMTYPE 0
  79. # define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
  80. #elif (CONFIG_ETHER_INDEX == 2)
  81. /*
  82. * - Rx-CLK is CLK13
  83. * - Tx-CLK is CLK14
  84. * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
  85. * - Enable Full Duplex in FSMR
  86. */
  87. # define CFG_CMXFCR_MASK (CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
  88. # define CFG_CMXFCR_VALUE (CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
  89. # define CFG_CPMFCR_RAMTYPE 0
  90. # define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
  91. #elif (CONFIG_ETHER_INDEX == 3)
  92. /*
  93. * - Rx-CLK is CLK15
  94. * - Tx-CLK is CLK16
  95. * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
  96. * - Enable Full Duplex in FSMR
  97. */
  98. # define CFG_CMXFCR_MASK (CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK)
  99. # define CFG_CMXFCR_VALUE (CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16)
  100. # define CFG_CPMFCR_RAMTYPE 0
  101. # define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
  102. #endif /* CONFIG_ETHER_INDEX */
  103. /* other options */
  104. #define CONFIG_HARD_I2C 1 /* To enable I2C hardware support */
  105. /* system clock rate (CLKIN) - equal to the 60x and local bus speed */
  106. #ifdef DEBUG
  107. #define CONFIG_8260_CLKIN 33333333 /* in Hz */
  108. #else
  109. #define CONFIG_8260_CLKIN 66666666 /* in Hz */
  110. #endif
  111. #if defined(CONFIG_CONS_USE_EXTC)
  112. #define CONFIG_BAUDRATE 115200
  113. #else
  114. #define CONFIG_BAUDRATE 38400
  115. #endif
  116. /* default ip addresses - these will be overridden */
  117. #define CONFIG_IPADDR 192.168.1.1 /* hymod "boot" address */
  118. #define CONFIG_SERVERIP 192.168.1.254 /* hymod "server" address */
  119. #define CONFIG_COMMANDS (CFG_CMD_ALL & ~( \
  120. CFG_CMD_BEDBUG | \
  121. CFG_CMD_DOC | \
  122. CFG_CMD_ELF | \
  123. CFG_CMD_FDC | \
  124. CFG_CMD_HWFLOW | \
  125. CFG_CMD_IDE | \
  126. CFG_CMD_JFFS2 | \
  127. CFG_CMD_MII | \
  128. CFG_CMD_PCMCIA | \
  129. CFG_CMD_PCI | \
  130. CFG_CMD_USB | \
  131. CFG_CMD_SCSI | \
  132. CFG_CMD_SPI | \
  133. CFG_CMD_VFD | \
  134. CFG_CMD_DTT ) )
  135. /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
  136. #include <cmd_confdefs.h>
  137. #ifdef DEBUG
  138. #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
  139. #endif
  140. #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
  141. #undef CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */
  142. #define CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */
  143. #undef CONFIG_KGDB_NONE /* define if kgdb on something else */
  144. #define CONFIG_KGDB_INDEX 2 /* which serial channel for kgdb */
  145. #define CONFIG_KGDB_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
  146. #define CONFIG_KGDB_EXTC_RATE 3686400 /* serial ext clk rate in Hz */
  147. #define CONFIG_KGDB_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
  148. # if defined(CONFIG_KGDB_USE_EXTC)
  149. #define CONFIG_KGDB_BAUDRATE 115200 /* speed to run kgdb serial port at */
  150. # else
  151. #define CONFIG_KGDB_BAUDRATE 38400 /* speed to run kgdb serial port at */
  152. # endif
  153. #endif
  154. #undef CONFIG_WATCHDOG /* disable platform specific watchdog */
  155. #define CONFIG_RTC_PCF8563 /* use Philips PCF8563 RTC */
  156. /*
  157. * Hymod specific configurable options
  158. */
  159. #undef CFG_HYMOD_DBLEDS /* walk mezz board LEDs */
  160. /*
  161. * Miscellaneous configurable options
  162. */
  163. #define CFG_LONGHELP /* undef to save memory */
  164. #define CFG_PROMPT "=> " /* Monitor Command Prompt */
  165. #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
  166. #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
  167. #else
  168. #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
  169. #endif
  170. #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
  171. #define CFG_MAXARGS 16 /* max number of command args */
  172. #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
  173. #define CFG_MEMTEST_START 0x00400000 /* memtest works on */
  174. #define CFG_MEMTEST_END 0x03c00000 /* 4 ... 60 MB in DRAM */
  175. #define CFG_LOAD_ADDR 0x100000 /* default load address */
  176. #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
  177. #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 }
  178. #define CFG_I2C_SPEED 50000
  179. #define CFG_I2C_SLAVE 0x7e
  180. /* these are for the ST M24C02 2kbit serial i2c eeprom */
  181. #define CFG_I2C_EEPROM_ADDR 0x50 /* base address */
  182. #define CFG_I2C_EEPROM_ADDR_LEN 1 /* bytes of address */
  183. #define CFG_I2C_RTC_ADDR 0x51 /* philips PCF8563 RTC address */
  184. /*
  185. * Low Level Configuration Settings
  186. * (address mappings, register initial values, etc.)
  187. * You should know what you are doing if you make changes here.
  188. */
  189. /*-----------------------------------------------------------------------
  190. * Hard Reset Configuration Words
  191. *
  192. * if you change bits in the HRCW, you must also change the CFG_*
  193. * defines for the various registers affected by the HRCW e.g. changing
  194. * HRCW_DPPCxx requires you to also change CFG_SIUMCR.
  195. */
  196. #ifdef DEBUG
  197. #define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\
  198. HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\
  199. HRCW_MODCK_H0010)
  200. #else
  201. #define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\
  202. HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\
  203. HRCW_MODCK_H0101)
  204. #endif
  205. /* no slaves so just duplicate the master hrcw */
  206. #define CFG_HRCW_SLAVE1 CFG_HRCW_MASTER
  207. #define CFG_HRCW_SLAVE2 CFG_HRCW_MASTER
  208. #define CFG_HRCW_SLAVE3 CFG_HRCW_MASTER
  209. #define CFG_HRCW_SLAVE4 CFG_HRCW_MASTER
  210. #define CFG_HRCW_SLAVE5 CFG_HRCW_MASTER
  211. #define CFG_HRCW_SLAVE6 CFG_HRCW_MASTER
  212. #define CFG_HRCW_SLAVE7 CFG_HRCW_MASTER
  213. /*-----------------------------------------------------------------------
  214. * Internal Memory Mapped Register
  215. */
  216. #define CFG_IMMR 0xF0000000
  217. /*-----------------------------------------------------------------------
  218. * Definitions for initial stack pointer and data area (in DPRAM)
  219. */
  220. #define CFG_INIT_RAM_ADDR CFG_IMMR
  221. #define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
  222. #define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
  223. #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
  224. #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
  225. /*-----------------------------------------------------------------------
  226. * Start addresses for the final memory configuration
  227. * (Set up by the startup code)
  228. * Please note that CFG_SDRAM_BASE _must_ start at 0
  229. */
  230. #define CFG_SDRAM_BASE 0x00000000
  231. #define CFG_FLASH_BASE TEXT_BASE
  232. #define CFG_MONITOR_BASE TEXT_BASE
  233. #define CFG_FPGA_BASE 0x80000000
  234. /*
  235. * unfortunately, CFG_MONITOR_LEN must include the
  236. * (very large i.e. 256kB) environment flash sector
  237. */
  238. #define CFG_MONITOR_LEN (512 << 10) /* Reserve 512 kB for Monitor*/
  239. #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc()*/
  240. /*
  241. * For booting Linux, the board info and command line data
  242. * have to be in the first 8 MB of memory, since this is
  243. * the maximum mapped by the Linux kernel during initialization.
  244. */
  245. #define CFG_BOOTMAPSZ (8 << 20) /* Initial Mem map for Linux*/
  246. /*-----------------------------------------------------------------------
  247. * FLASH organization
  248. */
  249. #define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */
  250. #define CFG_MAX_FLASH_SECT 67 /* max num of sects on one chip */
  251. #define CFG_FLASH_ERASE_TOUT 120000 /* Flash Erase Timeout (in ms) */
  252. #define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */
  253. #define CFG_FLASH_TYPE FLASH_28F640J3A
  254. #define CFG_FLASH_ID (INTEL_ID_28F640J3A & 0xff)
  255. #define CFG_FLASH_NBLOCKS 64
  256. #define CFG_ENV_IS_IN_FLASH 1
  257. #define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */
  258. #define CFG_ENV_SECT_SIZE 0x40000 /* see README - env sect real size */
  259. #define CFG_ENV_ADDR (CFG_FLASH_BASE+CFG_MONITOR_LEN-CFG_ENV_SECT_SIZE)
  260. /*-----------------------------------------------------------------------
  261. * Cache Configuration
  262. */
  263. #define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
  264. #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
  265. #define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value*/
  266. #endif
  267. /*-----------------------------------------------------------------------
  268. * HIDx - Hardware Implementation-dependent Registers 2-11
  269. *-----------------------------------------------------------------------
  270. * HID0 also contains cache control - initially enable both caches and
  271. * invalidate contents, then the final state leaves only the instruction
  272. * cache enabled. Note that Power-On and Hard reset invalidate the caches,
  273. * but Soft reset does not.
  274. *
  275. * HID1 has only read-only information - nothing to set.
  276. */
  277. #define CFG_HID0_INIT (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI|\
  278. HID0_IFEM|HID0_ABE)
  279. #ifdef DEBUG
  280. #define CFG_HID0_FINAL 0
  281. #else
  282. #define CFG_HID0_FINAL (HID0_ICE|HID0_IFEM|HID0_ABE)
  283. #endif
  284. #define CFG_HID2 0
  285. /*-----------------------------------------------------------------------
  286. * RMR - Reset Mode Register 5-5
  287. *-----------------------------------------------------------------------
  288. * turn on Checkstop Reset Enable
  289. */
  290. #ifdef DEBUG
  291. #define CFG_RMR 0
  292. #else
  293. #define CFG_RMR RMR_CSRE
  294. #endif
  295. /*-----------------------------------------------------------------------
  296. * BCR - Bus Configuration 4-25
  297. *-----------------------------------------------------------------------
  298. */
  299. #define CFG_BCR (BCR_ETM)
  300. /*-----------------------------------------------------------------------
  301. * SIUMCR - SIU Module Configuration 4-31
  302. *-----------------------------------------------------------------------
  303. */
  304. #define CFG_SIUMCR (SIUMCR_DPPC10|SIUMCR_L2CPC01|\
  305. SIUMCR_APPC10|SIUMCR_MMR11)
  306. /*-----------------------------------------------------------------------
  307. * SYPCR - System Protection Control 4-35
  308. * SYPCR can only be written once after reset!
  309. *-----------------------------------------------------------------------
  310. * Watchdog & Bus Monitor Timer max, 60x & Local Bus Monitor enable
  311. */
  312. #if defined(CONFIG_WATCHDOG)
  313. #define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
  314. SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE)
  315. #else
  316. #define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
  317. SYPCR_SWRI|SYPCR_SWP)
  318. #endif /* CONFIG_WATCHDOG */
  319. /*-----------------------------------------------------------------------
  320. * TMCNTSC - Time Counter Status and Control 4-40
  321. *-----------------------------------------------------------------------
  322. * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
  323. * and enable Time Counter
  324. */
  325. #define CFG_TMCNTSC (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE)
  326. /*-----------------------------------------------------------------------
  327. * PISCR - Periodic Interrupt Status and Control 4-42
  328. *-----------------------------------------------------------------------
  329. * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
  330. * Periodic timer
  331. */
  332. #define CFG_PISCR (PISCR_PS|PISCR_PTF|PISCR_PTE)
  333. /*-----------------------------------------------------------------------
  334. * SCCR - System Clock Control 9-8
  335. *-----------------------------------------------------------------------
  336. * Ensure DFBRG is Divide by 16
  337. */
  338. #define CFG_SCCR (SCCR_DFBRG01)
  339. /*-----------------------------------------------------------------------
  340. * RCCR - RISC Controller Configuration 13-7
  341. *-----------------------------------------------------------------------
  342. */
  343. #define CFG_RCCR 0
  344. /*
  345. * Init Memory Controller:
  346. *
  347. * Bank Bus Machine PortSz Device
  348. * ---- --- ------- ------ ------
  349. * 0 60x GPCM 32 bit FLASH
  350. * 1 60x GPCM 32 bit FLASH (same as 0 - unused for now)
  351. * 2 60x SDRAM 64 bit SDRAM
  352. * 3 Local UPMC 8 bit Main Xilinx configuration
  353. * 4 Local GPCM 32 bit Main Xilinx register mode
  354. * 5 Local UPMB 32 bit Main Xilinx port mode
  355. * 6 Local UPMC 8 bit Mezz Xilinx configuration
  356. */
  357. /*
  358. * Bank 0 - FLASH
  359. *
  360. * Quotes from the HYMOD IO Board Reference manual:
  361. *
  362. * "The flash memory is two Intel StrataFlash chips, each configured for
  363. * 16 bit operation and connected to give a 32 bit wide port."
  364. *
  365. * "The chip select logic is configured to respond to both *CS0 and *CS1.
  366. * Therefore the FLASH memory will be mapped to both bank 0 and bank 1.
  367. * It is suggested that bank 0 be read-only and bank 1 be read/write. The
  368. * FLASH will then appear as ROM during boot."
  369. *
  370. * Initially, we are only going to use bank 0 in read/write mode.
  371. */
  372. /* 32 bit, read-write, GPCM on 60x bus */
  373. #define CFG_BR0_PRELIM ((CFG_FLASH_BASE&BRx_BA_MSK)|\
  374. BRx_PS_32|BRx_MS_GPCM_P|BRx_V)
  375. /* up to 32 Mb */
  376. #define CFG_OR0_PRELIM (MEG_TO_AM(32)|ORxG_CSNT|ORxG_ACS_DIV2|ORxG_SCY_10_CLK)
  377. /*
  378. * Bank 2 - SDRAM
  379. *
  380. * Quotes from the HYMOD IO Board Reference manual:
  381. *
  382. * "The main memory is implemented using TC59SM716FTL-10 SDRAM and has a
  383. * fixed size of 64 Mbytes. The Toshiba TC59SM716FTL-10 is a CMOS synchronous
  384. * dynamic random access memory organised as 4 banks by 4096 rows by 512
  385. * columns by 16 bits. Four chips provide a 64-bit port on the 60x bus."
  386. *
  387. * "The locations in SDRAM are accessed using multiplexed address pins to
  388. * specify row and column. The pins also act to specify commands. The state
  389. * of the inputs *RAS, *CAS and *WE defines the required action. The a10/AP
  390. * pin may function as a row address or as the AUTO PRECHARGE control line,
  391. * depending on the cycle type. The 60x bus SDRAM machine allows the MPC8260
  392. * address lines to be configured to the required multiplexing scheme."
  393. */
  394. #define CFG_SDRAM_SIZE 64
  395. /* 64 bit, read-write, SDRAM on 60x bus */
  396. #define CFG_BR2_PRELIM ((CFG_SDRAM_BASE&BRx_BA_MSK)|\
  397. BRx_PS_64|BRx_MS_SDRAM_P|BRx_V)
  398. /* 64 Mb, 4 int banks per dev, row start addr bit = A6, 12 row addr lines */
  399. #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM_SIZE)|\
  400. ORxS_BPD_4|ORxS_ROWST_PBI1_A6|ORxS_NUMR_12)
  401. /*
  402. * The 60x Bus SDRAM Mode Register (PDSMR) is set as follows:
  403. *
  404. * Page Based Interleaving, Refresh Enable, Address Multiplexing where A5
  405. * is output on A16 pin (A6 on A17, and so on), use address pins A14-A16
  406. * as bank select, A7 is output on SDA10 during an ACTIVATE command,
  407. * earliest timing for ACTIVATE command after REFRESH command is 6 clocks,
  408. * earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
  409. * is 2 clocks, earliest timing for READ/WRITE command after ACTIVATE
  410. * command is 2 clocks, earliest timing for PRECHARGE after last data
  411. * was read is 1 clock, earliest timing for PRECHARGE after last data
  412. * was written is 1 clock, CAS Latency is 2.
  413. */
  414. #define CFG_PSDMR (PSDMR_PBI|PSDMR_SDAM_A16_IS_A5|\
  415. PSDMR_BSMA_A14_A16|PSDMR_SDA10_PBI1_A7|\
  416. PSDMR_RFRC_6_CLK|PSDMR_PRETOACT_2W|\
  417. PSDMR_ACTTORW_2W|PSDMR_LDOTOPRE_1C|\
  418. PSDMR_WRC_1C|PSDMR_CL_2)
  419. /*
  420. * The 60x bus-assigned SDRAM Refresh Timer (PSRT) (10-31) and the Refresh
  421. * Timers Prescale (PTP) value in the Memory Refresh Timer Prescaler Register
  422. * (MPTPR) (10-32) must also be set up (it used to be called the Periodic Timer
  423. * Prescaler, hence the P instead of the R). The refresh timer period is given
  424. * by (note that there was a change in the 8260 UM Errata):
  425. *
  426. * TimerPeriod = (PSRT + 1) / Fmptc
  427. *
  428. * where Fmptc is the BusClock divided by PTP. i.e.
  429. *
  430. * TimerPeriod = (PSRT + 1) / (BusClock / PTP)
  431. *
  432. * or
  433. *
  434. * TImerPeriod = (PTP * (PSRT + 1)) / BusClock
  435. *
  436. * The requirement for the Toshiba TC59SM716FTL-10 is that there must be
  437. * 4K refresh cycles every 64 ms. i.e. one refresh cycle every 64000/4096
  438. * = 15.625 usecs.
  439. *
  440. * So PTP * (PSRT + 1) <= 15.625 * BusClock. At 66.666MHz, PSRT=31 and PTP=32
  441. * appear to be reasonable.
  442. */
  443. #ifdef DEBUG
  444. #define CFG_PSRT 39
  445. #define CFG_MPTPR MPTPR_PTP_DIV8
  446. #else
  447. #define CFG_PSRT 31
  448. #define CFG_MPTPR MPTPR_PTP_DIV32
  449. #endif
  450. /*
  451. * Banks 3,4,5 and 6 - FPGA access
  452. *
  453. * Quotes from the HYMOD IO Board Reference manual:
  454. *
  455. * "The IO Board is fitted with a Xilinx XCV300E main FPGA. Provision is made
  456. * for configuring an optional FPGA on the mezzanine interface.
  457. *
  458. * Access to the FPGAs may be divided into several catagories:
  459. *
  460. * 1. Configuration
  461. * 2. Register mode access
  462. * 3. Port mode access
  463. *
  464. * The main FPGA is supported for modes 1, 2 and 3. The mezzanine FPGA can be
  465. * configured only (mode 1). Consequently there are four access types.
  466. *
  467. * To improve interface performance and simplify software design, the four
  468. * possible access types are separately mapped to different memory banks.
  469. *
  470. * All are accessed using the local bus."
  471. *
  472. * Device Mode Memory Bank Machine Port Size Access
  473. *
  474. * Main Configuration 3 UPMC 8bit R/W
  475. * Main Register 4 GPCM 32bit R/W
  476. * Main Port 5 UPMB 32bit R/W
  477. * Mezzanine Configuration 6 UPMC 8bit W/O
  478. *
  479. * "Note that mezzanine mode 1 access is write-only."
  480. */
  481. /* all the bank sizes must be a power of two, greater or equal to 32768 */
  482. #define FPGA_MAIN_CFG_BASE (CFG_FPGA_BASE)
  483. #define FPGA_MAIN_CFG_SIZE 32768
  484. #define FPGA_MAIN_REG_BASE (FPGA_MAIN_CFG_BASE + FPGA_MAIN_CFG_SIZE)
  485. #define FPGA_MAIN_REG_SIZE 32768
  486. #define FPGA_MAIN_PORT_BASE (FPGA_MAIN_REG_BASE + FPGA_MAIN_REG_SIZE)
  487. #define FPGA_MAIN_PORT_SIZE 32768
  488. #define FPGA_MEZZ_CFG_BASE (FPGA_MAIN_PORT_BASE + FPGA_MAIN_PORT_SIZE)
  489. #define FPGA_MEZZ_CFG_SIZE 32768
  490. /* 8 bit, read-write, UPMC */
  491. #define CFG_BR3_PRELIM (FPGA_MAIN_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V)
  492. /* up to 32Kbyte, burst inhibit */
  493. #define CFG_OR3_PRELIM (P2SZ_TO_AM(FPGA_MAIN_CFG_SIZE)|ORxU_BI)
  494. /* 32 bit, read-write, GPCM */
  495. #define CFG_BR4_PRELIM (FPGA_MAIN_REG_BASE|BRx_PS_32|BRx_MS_GPCM_L|BRx_V)
  496. /* up to 32Kbyte */
  497. #define CFG_OR4_PRELIM (P2SZ_TO_AM(FPGA_MAIN_REG_SIZE))
  498. /* 32 bit, read-write, UPMB */
  499. #define CFG_BR5_PRELIM (FPGA_MAIN_PORT_BASE|BRx_PS_32|BRx_MS_UPMB|BRx_V)
  500. /* up to 32Kbyte */
  501. #define CFG_OR5_PRELIM (P2SZ_TO_AM(FPGA_MAIN_PORT_SIZE)|ORxU_BI)
  502. /* 8 bit, write-only, UPMC */
  503. #define CFG_BR6_PRELIM (FPGA_MEZZ_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V)
  504. /* up to 32Kbyte, burst inhibit */
  505. #define CFG_OR6_PRELIM (P2SZ_TO_AM(FPGA_MEZZ_CFG_SIZE)|ORxU_BI)
  506. /*-----------------------------------------------------------------------
  507. * MBMR - Machine B Mode 10-27
  508. *-----------------------------------------------------------------------
  509. */
  510. #define CFG_MBMR (MxMR_BSEL|MxMR_OP_NORM) /* XXX - needs more */
  511. /*-----------------------------------------------------------------------
  512. * MCMR - Machine C Mode 10-27
  513. *-----------------------------------------------------------------------
  514. */
  515. #define CFG_MCMR (MxMR_BSEL|MxMR_DSx_2_CYCL) /* XXX - needs more */
  516. /*
  517. * FPGA I/O Port/Bit information
  518. */
  519. #define FPGA_MAIN_PROG_PORT IOPIN_PORTA
  520. #define FPGA_MAIN_PROG_PIN 4 /* PA4 */
  521. #define FPGA_MAIN_INIT_PORT IOPIN_PORTA
  522. #define FPGA_MAIN_INIT_PIN 5 /* PA5 */
  523. #define FPGA_MAIN_DONE_PORT IOPIN_PORTA
  524. #define FPGA_MAIN_DONE_PIN 6 /* PA6 */
  525. #define FPGA_MEZZ_PROG_PORT IOPIN_PORTA
  526. #define FPGA_MEZZ_PROG_PIN 0 /* PA0 */
  527. #define FPGA_MEZZ_INIT_PORT IOPIN_PORTA
  528. #define FPGA_MEZZ_INIT_PIN 1 /* PA1 */
  529. #define FPGA_MEZZ_DONE_PORT IOPIN_PORTA
  530. #define FPGA_MEZZ_DONE_PIN 2 /* PA2 */
  531. #define FPGA_MEZZ_ENABLE_PORT IOPIN_PORTA
  532. #define FPGA_MEZZ_ENABLE_PIN 3 /* PA3 */
  533. /*
  534. * Internal Definitions
  535. *
  536. * Boot Flags
  537. */
  538. #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH*/
  539. #define BOOTFLAG_WARM 0x02 /* Software reboot */
  540. #endif /* __CONFIG_H */