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wdenk8966f332002-10-31 23:30:59 +00001/*
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/*
25 * Config header file for Hymod board
26 */
27
28#ifndef __CONFIG_H
29#define __CONFIG_H
30
31/*
32 * High Level Configuration Options
33 * (easy to change)
34 */
35
36#define CONFIG_MPC8260 1 /* This is an MPC8260 CPU */
37#define CONFIG_HYMOD 1 /* ...on a Hymod board */
38
39#define CONFIG_BOARD_POSTCLK_INIT /* have board_postclk_init() function */
40
41/*
42 * select serial console configuration
43 *
44 * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
45 * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
46 * for SCC).
47 *
48 * if CONFIG_CONS_NONE is defined, then the serial console routines must
49 * defined elsewhere (for example, on the cogent platform, there are serial
50 * ports on the motherboard which are used for the serial console - see
51 * cogent/cma101/serial.[ch]).
52 */
53#undef CONFIG_CONS_ON_SMC /* define if console on SMC */
54#define CONFIG_CONS_ON_SCC /* define if console on SCC */
55#undef CONFIG_CONS_NONE /* define if console on something else*/
56#define CONFIG_CONS_INDEX 1 /* which serial channel for console */
57#define CONFIG_CONS_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
58#define CONFIG_CONS_EXTC_RATE 3686400 /* SMC/SCC ext clk rate in Hz */
59#define CONFIG_CONS_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
60
61/*
62 * select ethernet configuration
63 *
64 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
65 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
66 * for FCC)
67 *
68 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
69 * defined elsewhere (as for the console), or CFG_CMD_NET must be removed
70 * from CONFIG_COMMANDS to remove support for networking.
71 */
72#undef CONFIG_ETHER_ON_SCC /* define if ether on SCC */
73#define CONFIG_ETHER_ON_FCC /* define if ether on FCC */
74#undef CONFIG_ETHER_NONE /* define if ether on something else */
75#define CONFIG_ETHER_INDEX 1 /* which channel for ether */
76
77#if (CONFIG_ETHER_INDEX == 1)
78
79/*
80 * - Rx-CLK is CLK10
81 * - Tx-CLK is CLK11
82 * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
83 * - Enable Full Duplex in FSMR
84 */
85# define CFG_CMXFCR_MASK (CMXFCR_FC1|CMXFCR_RF1CS_MSK|CMXFCR_TF1CS_MSK)
86# define CFG_CMXFCR_VALUE (CMXFCR_RF1CS_CLK10|CMXFCR_TF1CS_CLK11)
87# define CFG_CPMFCR_RAMTYPE 0
88# define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
89
90#elif (CONFIG_ETHER_INDEX == 2)
91
92/*
93 * - Rx-CLK is CLK13
94 * - Tx-CLK is CLK14
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_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
99# define CFG_CMXFCR_VALUE (CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
100# define CFG_CPMFCR_RAMTYPE 0
101# define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
102
103#elif (CONFIG_ETHER_INDEX == 3)
104
105/*
106 * - Rx-CLK is CLK15
107 * - Tx-CLK is CLK16
108 * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
109 * - Enable Full Duplex in FSMR
110 */
111# define CFG_CMXFCR_MASK (CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK)
112# define CFG_CMXFCR_VALUE (CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16)
113# define CFG_CPMFCR_RAMTYPE 0
114# define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
115
116#endif /* CONFIG_ETHER_INDEX */
117
118
119/* other options */
120#define CONFIG_HARD_I2C 1 /* To enable I2C hardware support */
121
122/* system clock rate (CLKIN) - equal to the 60x and local bus speed */
123#ifdef DEBUG
124#define CONFIG_8260_CLKIN 33333333 /* in Hz */
125#else
126#define CONFIG_8260_CLKIN 66666666 /* in Hz */
127#endif
128
129#if defined(CONFIG_CONS_USE_EXTC)
130#define CONFIG_BAUDRATE 115200
131#else
132#define CONFIG_BAUDRATE 38400
133#endif
134
135/* default ip addresses - these will be overridden */
136#define CONFIG_IPADDR 192.168.1.1 /* hymod "boot" address */
137#define CONFIG_SERVERIP 192.168.1.254 /* hymod "server" address */
138
139#define CONFIG_COMMANDS (CFG_CMD_ALL & ~( \
140 CFG_CMD_BEDBUG | \
wdenk824a1eb2003-04-20 16:49:37 +0000141 CFG_CMD_BMP | \
wdenk8966f332002-10-31 23:30:59 +0000142 CFG_CMD_DOC | \
143 CFG_CMD_ELF | \
144 CFG_CMD_FDC | \
wdenk2262cfe2002-11-18 00:14:45 +0000145 CFG_CMD_FDOS | \
wdenk8966f332002-10-31 23:30:59 +0000146 CFG_CMD_HWFLOW | \
147 CFG_CMD_IDE | \
148 CFG_CMD_JFFS2 | \
wdenkac6dbb82003-03-26 11:42:53 +0000149 CFG_CMD_NAND | \
wdenk8966f332002-10-31 23:30:59 +0000150 CFG_CMD_MII | \
151 CFG_CMD_PCMCIA | \
152 CFG_CMD_PCI | \
153 CFG_CMD_USB | \
154 CFG_CMD_SCSI | \
wdenk1d0350e2002-11-11 21:14:20 +0000155 CFG_CMD_SPI | \
wdenk8966f332002-10-31 23:30:59 +0000156 CFG_CMD_VFD | \
157 CFG_CMD_DTT ) )
158
159/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
160#include <cmd_confdefs.h>
161
162#ifdef DEBUG
163#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
164#endif
165
166#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
167#undef CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */
168#define CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */
169#undef CONFIG_KGDB_NONE /* define if kgdb on something else */
170#define CONFIG_KGDB_INDEX 2 /* which serial channel for kgdb */
171#define CONFIG_KGDB_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
172#define CONFIG_KGDB_EXTC_RATE 3686400 /* serial ext clk rate in Hz */
173#define CONFIG_KGDB_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
174# if defined(CONFIG_KGDB_USE_EXTC)
175#define CONFIG_KGDB_BAUDRATE 115200 /* speed to run kgdb serial port at */
176# else
177#define CONFIG_KGDB_BAUDRATE 38400 /* speed to run kgdb serial port at */
178# endif
179#endif
180
181#undef CONFIG_WATCHDOG /* disable platform specific watchdog */
182
183#define CONFIG_RTC_PCF8563 /* use Philips PCF8563 RTC */
184
185/*
186 * Hymod specific configurable options
187 */
188#undef CFG_HYMOD_DBLEDS /* walk mezz board LEDs */
189
190/*
191 * Miscellaneous configurable options
192 */
193#define CFG_LONGHELP /* undef to save memory */
194#define CFG_PROMPT "=> " /* Monitor Command Prompt */
195#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
196#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
197#else
198#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
199#endif
200#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
201#define CFG_MAXARGS 16 /* max number of command args */
202#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
203
204#define CFG_MEMTEST_START 0x00400000 /* memtest works on */
205#define CFG_MEMTEST_END 0x03c00000 /* 4 ... 60 MB in DRAM */
206
207#define CFG_LOAD_ADDR 0x100000 /* default load address */
208
209#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
210
211#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 }
212
213#define CFG_I2C_SPEED 50000
214#define CFG_I2C_SLAVE 0x7e
215
216/* these are for the ST M24C02 2kbit serial i2c eeprom */
217#define CFG_I2C_EEPROM_ADDR 0x50 /* base address */
218#define CFG_I2C_EEPROM_ADDR_LEN 1 /* bytes of address */
219#define CFG_I2C_RTC_ADDR 0x51 /* philips PCF8563 RTC address */
220
221/*
222 * Low Level Configuration Settings
223 * (address mappings, register initial values, etc.)
224 * You should know what you are doing if you make changes here.
225 */
226
227/*-----------------------------------------------------------------------
228 * Hard Reset Configuration Words
229 *
230 * if you change bits in the HRCW, you must also change the CFG_*
231 * defines for the various registers affected by the HRCW e.g. changing
232 * HRCW_DPPCxx requires you to also change CFG_SIUMCR.
233 */
234#ifdef DEBUG
235#define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\
236 HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\
237 HRCW_MODCK_H0010)
238#else
239#define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\
240 HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\
241 HRCW_MODCK_H0101)
242#endif
243/* no slaves so just duplicate the master hrcw */
244#define CFG_HRCW_SLAVE1 CFG_HRCW_MASTER
245#define CFG_HRCW_SLAVE2 CFG_HRCW_MASTER
246#define CFG_HRCW_SLAVE3 CFG_HRCW_MASTER
247#define CFG_HRCW_SLAVE4 CFG_HRCW_MASTER
248#define CFG_HRCW_SLAVE5 CFG_HRCW_MASTER
249#define CFG_HRCW_SLAVE6 CFG_HRCW_MASTER
250#define CFG_HRCW_SLAVE7 CFG_HRCW_MASTER
251
252/*-----------------------------------------------------------------------
253 * Internal Memory Mapped Register
254 */
255#define CFG_IMMR 0xF0000000
256
257/*-----------------------------------------------------------------------
258 * Definitions for initial stack pointer and data area (in DPRAM)
259 */
260#define CFG_INIT_RAM_ADDR CFG_IMMR
261#define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
262#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
263#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
264#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
265
266/*-----------------------------------------------------------------------
267 * Start addresses for the final memory configuration
268 * (Set up by the startup code)
269 * Please note that CFG_SDRAM_BASE _must_ start at 0
270 */
271#define CFG_SDRAM_BASE 0x00000000
272#define CFG_FLASH_BASE TEXT_BASE
273#define CFG_MONITOR_BASE TEXT_BASE
274#define CFG_FPGA_BASE 0x80000000
275/*
276 * unfortunately, CFG_MONITOR_LEN must include the
277 * (very large i.e. 256kB) environment flash sector
278 */
279#define CFG_MONITOR_LEN (512 << 10) /* Reserve 512 kB for Monitor*/
280#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc()*/
281
282/*
283 * For booting Linux, the board info and command line data
284 * have to be in the first 8 MB of memory, since this is
285 * the maximum mapped by the Linux kernel during initialization.
286 */
287#define CFG_BOOTMAPSZ (8 << 20) /* Initial Mem map for Linux*/
288
289/*-----------------------------------------------------------------------
290 * FLASH organization
291 */
292#define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */
293#define CFG_MAX_FLASH_SECT 67 /* max num of sects on one chip */
294
295#define CFG_FLASH_ERASE_TOUT 120000 /* Flash Erase Timeout (in ms) */
296#define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */
297
298#define CFG_FLASH_TYPE FLASH_28F640J3A
299#define CFG_FLASH_ID (INTEL_ID_28F640J3A & 0xff)
300#define CFG_FLASH_NBLOCKS 64
301
302#define CFG_ENV_IS_IN_FLASH 1
303#define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */
304#define CFG_ENV_SECT_SIZE 0x40000 /* see README - env sect real size */
305#define CFG_ENV_ADDR (CFG_FLASH_BASE+CFG_MONITOR_LEN-CFG_ENV_SECT_SIZE)
306
307/*-----------------------------------------------------------------------
308 * Cache Configuration
309 */
310#define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
311#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
312#define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value*/
313#endif
314
315/*-----------------------------------------------------------------------
316 * HIDx - Hardware Implementation-dependent Registers 2-11
317 *-----------------------------------------------------------------------
318 * HID0 also contains cache control - initially enable both caches and
319 * invalidate contents, then the final state leaves only the instruction
320 * cache enabled. Note that Power-On and Hard reset invalidate the caches,
321 * but Soft reset does not.
322 *
323 * HID1 has only read-only information - nothing to set.
324 */
325#define CFG_HID0_INIT (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI|\
326 HID0_IFEM|HID0_ABE)
327#ifdef DEBUG
328#define CFG_HID0_FINAL 0
329#else
330#define CFG_HID0_FINAL (HID0_ICE|HID0_IFEM|HID0_ABE)
331#endif
332#define CFG_HID2 0
333
334/*-----------------------------------------------------------------------
335 * RMR - Reset Mode Register 5-5
336 *-----------------------------------------------------------------------
337 * turn on Checkstop Reset Enable
338 */
339#ifdef DEBUG
340#define CFG_RMR 0
341#else
342#define CFG_RMR RMR_CSRE
343#endif
344
345/*-----------------------------------------------------------------------
346 * BCR - Bus Configuration 4-25
347 *-----------------------------------------------------------------------
348 */
349#define CFG_BCR (BCR_ETM)
350
351/*-----------------------------------------------------------------------
352 * SIUMCR - SIU Module Configuration 4-31
353 *-----------------------------------------------------------------------
354 */
355#define CFG_SIUMCR (SIUMCR_DPPC10|SIUMCR_L2CPC01|\
356 SIUMCR_APPC10|SIUMCR_MMR11)
357
358/*-----------------------------------------------------------------------
359 * SYPCR - System Protection Control 4-35
360 * SYPCR can only be written once after reset!
361 *-----------------------------------------------------------------------
362 * Watchdog & Bus Monitor Timer max, 60x & Local Bus Monitor enable
363 */
364#if defined(CONFIG_WATCHDOG)
365#define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
366 SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE)
367#else
368#define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
369 SYPCR_SWRI|SYPCR_SWP)
370#endif /* CONFIG_WATCHDOG */
371
372/*-----------------------------------------------------------------------
373 * TMCNTSC - Time Counter Status and Control 4-40
374 *-----------------------------------------------------------------------
375 * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
376 * and enable Time Counter
377 */
378#define CFG_TMCNTSC (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE)
379
380/*-----------------------------------------------------------------------
381 * PISCR - Periodic Interrupt Status and Control 4-42
382 *-----------------------------------------------------------------------
383 * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
384 * Periodic timer
385 */
386#define CFG_PISCR (PISCR_PS|PISCR_PTF|PISCR_PTE)
387
388/*-----------------------------------------------------------------------
389 * SCCR - System Clock Control 9-8
390 *-----------------------------------------------------------------------
391 * Ensure DFBRG is Divide by 16
392 */
393#define CFG_SCCR (SCCR_DFBRG01)
394
395/*-----------------------------------------------------------------------
396 * RCCR - RISC Controller Configuration 13-7
397 *-----------------------------------------------------------------------
398 */
399#define CFG_RCCR 0
400
401/*
402 * Init Memory Controller:
403 *
404 * Bank Bus Machine PortSz Device
405 * ---- --- ------- ------ ------
406 * 0 60x GPCM 32 bit FLASH
407 * 1 60x GPCM 32 bit FLASH (same as 0 - unused for now)
408 * 2 60x SDRAM 64 bit SDRAM
409 * 3 Local UPMC 8 bit Main Xilinx configuration
410 * 4 Local GPCM 32 bit Main Xilinx register mode
411 * 5 Local UPMB 32 bit Main Xilinx port mode
412 * 6 Local UPMC 8 bit Mezz Xilinx configuration
413 */
414
415/*
416 * Bank 0 - FLASH
417 *
418 * Quotes from the HYMOD IO Board Reference manual:
419 *
420 * "The flash memory is two Intel StrataFlash chips, each configured for
421 * 16 bit operation and connected to give a 32 bit wide port."
422 *
423 * "The chip select logic is configured to respond to both *CS0 and *CS1.
424 * Therefore the FLASH memory will be mapped to both bank 0 and bank 1.
425 * It is suggested that bank 0 be read-only and bank 1 be read/write. The
426 * FLASH will then appear as ROM during boot."
427 *
428 * Initially, we are only going to use bank 0 in read/write mode.
429 */
430
431/* 32 bit, read-write, GPCM on 60x bus */
432#define CFG_BR0_PRELIM ((CFG_FLASH_BASE&BRx_BA_MSK)|\
433 BRx_PS_32|BRx_MS_GPCM_P|BRx_V)
434/* up to 32 Mb */
435#define CFG_OR0_PRELIM (MEG_TO_AM(32)|ORxG_CSNT|ORxG_ACS_DIV2|ORxG_SCY_10_CLK)
436
437/*
438 * Bank 2 - SDRAM
439 *
440 * Quotes from the HYMOD IO Board Reference manual:
441 *
442 * "The main memory is implemented using TC59SM716FTL-10 SDRAM and has a
443 * fixed size of 64 Mbytes. The Toshiba TC59SM716FTL-10 is a CMOS synchronous
444 * dynamic random access memory organised as 4 banks by 4096 rows by 512
445 * columns by 16 bits. Four chips provide a 64-bit port on the 60x bus."
446 *
447 * "The locations in SDRAM are accessed using multiplexed address pins to
448 * specify row and column. The pins also act to specify commands. The state
449 * of the inputs *RAS, *CAS and *WE defines the required action. The a10/AP
450 * pin may function as a row address or as the AUTO PRECHARGE control line,
451 * depending on the cycle type. The 60x bus SDRAM machine allows the MPC8260
452 * address lines to be configured to the required multiplexing scheme."
453 */
454
455#define CFG_SDRAM_SIZE 64
456
457/* 64 bit, read-write, SDRAM on 60x bus */
458#define CFG_BR2_PRELIM ((CFG_SDRAM_BASE&BRx_BA_MSK)|\
459 BRx_PS_64|BRx_MS_SDRAM_P|BRx_V)
460/* 64 Mb, 4 int banks per dev, row start addr bit = A6, 12 row addr lines */
461#define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM_SIZE)|\
462 ORxS_BPD_4|ORxS_ROWST_PBI1_A6|ORxS_NUMR_12)
463
464/*
465 * The 60x Bus SDRAM Mode Register (PDSMR) is set as follows:
466 *
467 * Page Based Interleaving, Refresh Enable, Address Multiplexing where A5
468 * is output on A16 pin (A6 on A17, and so on), use address pins A14-A16
469 * as bank select, A7 is output on SDA10 during an ACTIVATE command,
470 * earliest timing for ACTIVATE command after REFRESH command is 6 clocks,
471 * earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
472 * is 2 clocks, earliest timing for READ/WRITE command after ACTIVATE
473 * command is 2 clocks, earliest timing for PRECHARGE after last data
474 * was read is 1 clock, earliest timing for PRECHARGE after last data
475 * was written is 1 clock, CAS Latency is 2.
476 */
477
478#define CFG_PSDMR (PSDMR_PBI|PSDMR_SDAM_A16_IS_A5|\
479 PSDMR_BSMA_A14_A16|PSDMR_SDA10_PBI1_A7|\
480 PSDMR_RFRC_6_CLK|PSDMR_PRETOACT_2W|\
481 PSDMR_ACTTORW_2W|PSDMR_LDOTOPRE_1C|\
482 PSDMR_WRC_1C|PSDMR_CL_2)
483
484/*
485 * The 60x bus-assigned SDRAM Refresh Timer (PSRT) (10-31) and the Refresh
486 * Timers Prescale (PTP) value in the Memory Refresh Timer Prescaler Register
487 * (MPTPR) (10-32) must also be set up (it used to be called the Periodic Timer
488 * Prescaler, hence the P instead of the R). The refresh timer period is given
489 * by (note that there was a change in the 8260 UM Errata):
490 *
491 * TimerPeriod = (PSRT + 1) / Fmptc
492 *
493 * where Fmptc is the BusClock divided by PTP. i.e.
494 *
495 * TimerPeriod = (PSRT + 1) / (BusClock / PTP)
496 *
497 * or
498 *
499 * TImerPeriod = (PTP * (PSRT + 1)) / BusClock
500 *
501 * The requirement for the Toshiba TC59SM716FTL-10 is that there must be
502 * 4K refresh cycles every 64 ms. i.e. one refresh cycle every 64000/4096
503 * = 15.625 usecs.
504 *
505 * So PTP * (PSRT + 1) <= 15.625 * BusClock. At 66.666MHz, PSRT=31 and PTP=32
506 * appear to be reasonable.
507 */
508
509#ifdef DEBUG
510#define CFG_PSRT 39
511#define CFG_MPTPR MPTPR_PTP_DIV8
512#else
513#define CFG_PSRT 31
514#define CFG_MPTPR MPTPR_PTP_DIV32
515#endif
516
517/*
518 * Banks 3,4,5 and 6 - FPGA access
519 *
520 * Quotes from the HYMOD IO Board Reference manual:
521 *
522 * "The IO Board is fitted with a Xilinx XCV300E main FPGA. Provision is made
523 * for configuring an optional FPGA on the mezzanine interface.
524 *
525 * Access to the FPGAs may be divided into several catagories:
526 *
527 * 1. Configuration
528 * 2. Register mode access
529 * 3. Port mode access
530 *
531 * The main FPGA is supported for modes 1, 2 and 3. The mezzanine FPGA can be
532 * configured only (mode 1). Consequently there are four access types.
533 *
534 * To improve interface performance and simplify software design, the four
535 * possible access types are separately mapped to different memory banks.
536 *
537 * All are accessed using the local bus."
538 *
539 * Device Mode Memory Bank Machine Port Size Access
540 *
541 * Main Configuration 3 UPMC 8bit R/W
542 * Main Register 4 GPCM 32bit R/W
543 * Main Port 5 UPMB 32bit R/W
544 * Mezzanine Configuration 6 UPMC 8bit W/O
545 *
546 * "Note that mezzanine mode 1 access is write-only."
547 */
548
549/* all the bank sizes must be a power of two, greater or equal to 32768 */
550#define FPGA_MAIN_CFG_BASE (CFG_FPGA_BASE)
551#define FPGA_MAIN_CFG_SIZE 32768
552#define FPGA_MAIN_REG_BASE (FPGA_MAIN_CFG_BASE + FPGA_MAIN_CFG_SIZE)
553#define FPGA_MAIN_REG_SIZE 32768
554#define FPGA_MAIN_PORT_BASE (FPGA_MAIN_REG_BASE + FPGA_MAIN_REG_SIZE)
555#define FPGA_MAIN_PORT_SIZE 32768
556#define FPGA_MEZZ_CFG_BASE (FPGA_MAIN_PORT_BASE + FPGA_MAIN_PORT_SIZE)
557#define FPGA_MEZZ_CFG_SIZE 32768
558
559/* 8 bit, read-write, UPMC */
560#define CFG_BR3_PRELIM (FPGA_MAIN_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V)
561/* up to 32Kbyte, burst inhibit */
562#define CFG_OR3_PRELIM (P2SZ_TO_AM(FPGA_MAIN_CFG_SIZE)|ORxU_BI)
563
564/* 32 bit, read-write, GPCM */
565#define CFG_BR4_PRELIM (FPGA_MAIN_REG_BASE|BRx_PS_32|BRx_MS_GPCM_L|BRx_V)
566/* up to 32Kbyte */
567#define CFG_OR4_PRELIM (P2SZ_TO_AM(FPGA_MAIN_REG_SIZE))
568
569/* 32 bit, read-write, UPMB */
570#define CFG_BR5_PRELIM (FPGA_MAIN_PORT_BASE|BRx_PS_32|BRx_MS_UPMB|BRx_V)
571/* up to 32Kbyte */
572#define CFG_OR5_PRELIM (P2SZ_TO_AM(FPGA_MAIN_PORT_SIZE)|ORxU_BI)
573
574/* 8 bit, write-only, UPMC */
575#define CFG_BR6_PRELIM (FPGA_MEZZ_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V)
576/* up to 32Kbyte, burst inhibit */
577#define CFG_OR6_PRELIM (P2SZ_TO_AM(FPGA_MEZZ_CFG_SIZE)|ORxU_BI)
578
579/*-----------------------------------------------------------------------
580 * MBMR - Machine B Mode 10-27
581 *-----------------------------------------------------------------------
582 */
583#define CFG_MBMR (MxMR_BSEL|MxMR_OP_NORM) /* XXX - needs more */
584
585/*-----------------------------------------------------------------------
586 * MCMR - Machine C Mode 10-27
587 *-----------------------------------------------------------------------
588 */
589#define CFG_MCMR (MxMR_BSEL|MxMR_DSx_2_CYCL) /* XXX - needs more */
590
591/*
592 * FPGA I/O Port/Bit information
593 */
594
595#define FPGA_MAIN_PROG_PORT IOPIN_PORTA
596#define FPGA_MAIN_PROG_PIN 4 /* PA4 */
597#define FPGA_MAIN_INIT_PORT IOPIN_PORTA
598#define FPGA_MAIN_INIT_PIN 5 /* PA5 */
599#define FPGA_MAIN_DONE_PORT IOPIN_PORTA
600#define FPGA_MAIN_DONE_PIN 6 /* PA6 */
601
602#define FPGA_MEZZ_PROG_PORT IOPIN_PORTA
603#define FPGA_MEZZ_PROG_PIN 0 /* PA0 */
604#define FPGA_MEZZ_INIT_PORT IOPIN_PORTA
605#define FPGA_MEZZ_INIT_PIN 1 /* PA1 */
606#define FPGA_MEZZ_DONE_PORT IOPIN_PORTA
607#define FPGA_MEZZ_DONE_PIN 2 /* PA2 */
608#define FPGA_MEZZ_ENABLE_PORT IOPIN_PORTA
609#define FPGA_MEZZ_ENABLE_PIN 3 /* PA3 */
610
611/*
612 * Internal Definitions
613 *
614 * Boot Flags
615 */
616#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH*/
617#define BOOTFLAG_WARM 0x02 /* Software reboot */
618
619#endif /* __CONFIG_H */