3 * Murray Jensen <Murray.Jensen@cmst.csiro.au>
6 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
7 * Marius Groeger <mgroeger@sysgo.de>
10 * Advent Networks, Inc. <http://www.adventnetworks.com>
11 * Jay Monkman <jmonkman@adventnetworks.com>
14 * Advent Networks, Inc. <http://www.adventnetworks.com>
15 * Oliver Brown <obrown@adventnetworks.com>
17 * See file CREDITS for list of people who contributed to this
20 * This program is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU General Public License as
22 * published by the Free Software Foundation; either version 2 of
23 * the License, or (at your option) any later version.
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
36 /*********************************************************************/
38 * This file contains the board configuartion for the GW8260 board.
43 * RESTRICTIONS/LIMITATIONS:
46 * Copyright (c) 2001, Advent Networks, Inc.
48 /*********************************************************************/
53 /* Enable debug prints */
54 #undef DEBUG_BOOTP_EXT /* Debug received vendor fields */
56 /* What is the oscillator's (UX2) frequency in Hz? */
57 #define CONFIG_8260_CLKIN (66 * 1000 * 1000)
59 /*-----------------------------------------------------------------------
60 * MODCK_H & MODCLK[1-3] - Ref: Section 9.2 in MPC8206 User Manual
61 *-----------------------------------------------------------------------
62 * What should MODCK_H be? It is dependent on the oscillator
63 * frequency, MODCK[1-3], and desired CPM and core frequencies.
64 * Here are some example values (all frequencies are in MHz):
66 * MODCK_H MODCK[1-3] Osc CPM Core S2-6 S2-7 S2-8
67 * ------- ---------- --- --- ---- ----- ----- -----
68 * 0x5 0x5 66 133 133 Open Close Open
69 * 0x5 0x6 66 133 166 Open Open Close
70 * 0x5 0x7 66 133 200 Open Open Open
71 * 0x6 0x0 66 133 233 Close Close Close
72 * 0x6 0x1 66 133 266 Close Close Open
73 * 0x6 0x2 66 133 300 Close Open Close
75 #define CFG_SBC_MODCK_H 0x05
77 /* Define this if you want to boot from 0x00000100. If you don't define
78 * this, you will need to program the bootloader to 0xfff00000, and
79 * get the hardware reset config words at 0xfe000000. The simplest
80 * way to do that is to program the bootloader at both addresses.
81 * It is suggested that you just let U-Boot live at 0x00000000.
83 #define CFG_SBC_BOOT_LOW 1
85 /* What should the base address of the main FLASH be and how big is
86 * it (in MBytes)? This must contain TEXT_BASE from board/sbc8260/config.mk
87 * The main FLASH is whichever is connected to *CS0. U-Boot expects
88 * this to be the SIMM.
90 #define CFG_FLASH0_BASE 0x40000000
91 #define CFG_FLASH0_SIZE 8
93 /* Define CFG_FLASH_CHECKSUM to enable flash checksum during boot.
94 * Note: the 'flashchecksum' environment variable must also be set to 'y'.
96 #define CFG_FLASH_CHECKSUM
98 /* What should be the base address of SDRAM DIMM and how big is
101 #define CFG_SDRAM0_BASE 0x00000000
102 #define CFG_SDRAM0_SIZE 64
106 * CFG_DRAM_TEST - enables the following tests.
108 * CFG_DRAM_TEST_DATA - Enables test for shorted or open data lines
109 * Environment variable 'test_dram_data' must be
111 * CFG_DRAM_TEST_DATA - Enables test to verify that each word is uniquely
112 * addressable. Environment variable
113 * 'test_dram_address' must be set to 'y'.
114 * CFG_DRAM_TEST_WALK - Enables test a 64-bit walking ones pattern test.
115 * This test takes about 6 minutes to test 64 MB.
116 * Environment variable 'test_dram_walk' must be
119 #define CFG_DRAM_TEST
120 #if defined(CFG_DRAM_TEST)
121 #define CFG_DRAM_TEST_DATA
122 #define CFG_DRAM_TEST_ADDRESS
123 #define CFG_DRAM_TEST_WALK
124 #endif /* CFG_DRAM_TEST */
127 * GW8260 with 16 MB DIMM:
129 * 0x0000 0000 Exception Vector code, 8k
132 * 0x0000 2000 Free for Application Use
138 * 0x00F5 FF30 Monitor Stack (Growing downward)
139 * Monitor Stack Buffer (0x80)
140 * 0x00F5 FFB0 Board Info Data
141 * 0x00F6 0000 Malloc Arena
142 * : CFG_ENV_SECT_SIZE, 256k
143 * : CFG_MALLOC_LEN, 128k
144 * 0x00FC 0000 RAM Copy of Monitor Code
145 * : CFG_MONITOR_LEN, 256k
146 * 0x00FF FFFF [End of RAM], CFG_SDRAM_SIZE - 1
150 * GW8260 with 64 MB DIMM:
152 * 0x0000 0000 Exception Vector code, 8k
155 * 0x0000 2000 Free for Application Use
161 * 0x03F5 FF30 Monitor Stack (Growing downward)
162 * Monitor Stack Buffer (0x80)
163 * 0x03F5 FFB0 Board Info Data
164 * 0x03F6 0000 Malloc Arena
165 * : CFG_ENV_SECT_SIZE, 256k
166 * : CFG_MALLOC_LEN, 128k
167 * 0x03FC 0000 RAM Copy of Monitor Code
168 * : CFG_MONITOR_LEN, 256k
169 * 0x03FF FFFF [End of RAM], CFG_SDRAM_SIZE - 1
174 * select serial console configuration
176 * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
177 * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
180 * if CONFIG_CONS_NONE is defined, then the serial console routines must
183 #define CONFIG_CONS_ON_SMC 1 /* define if console on SMC */
184 #undef CONFIG_CONS_ON_SCC /* define if console on SCC */
185 #undef CONFIG_CONS_NONE /* define if console on neither */
186 #define CONFIG_CONS_INDEX 1 /* which SMC/SCC channel for console */
189 * select ethernet configuration
191 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
192 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
195 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
196 * defined elsewhere (as for the console), or CONFIG_CMD_NET must be unset.
199 #undef CONFIG_ETHER_ON_SCC
200 #define CONFIG_ETHER_ON_FCC
201 #undef CONFIG_ETHER_NONE /* define if ethernet on neither */
203 #ifdef CONFIG_ETHER_ON_SCC
204 #define CONFIG_ETHER_INDEX 1 /* which SCC/FCC channel for ethernet */
205 #endif /* CONFIG_ETHER_ON_SCC */
207 #ifdef CONFIG_ETHER_ON_FCC
208 #define CONFIG_ETHER_INDEX 2 /* which SCC/FCC channel for ethernet */
209 #define CONFIG_MII /* MII PHY management */
210 #define CONFIG_BITBANGMII /* bit-bang MII PHY management */
212 * Port pins used for bit-banged MII communictions (if applicable).
214 #define MDIO_PORT 2 /* Port C */
215 #define MDIO_ACTIVE (iop->pdir |= 0x00400000)
216 #define MDIO_TRISTATE (iop->pdir &= ~0x00400000)
217 #define MDIO_READ ((iop->pdat & 0x00400000) != 0)
219 #define MDIO(bit) if(bit) iop->pdat |= 0x00400000; \
220 else iop->pdat &= ~0x00400000
222 #define MDC(bit) if(bit) iop->pdat |= 0x00200000; \
223 else iop->pdat &= ~0x00200000
225 #define MIIDELAY udelay(1)
226 #endif /* CONFIG_ETHER_ON_FCC */
228 #if defined(CONFIG_ETHER_ON_FCC) && (CONFIG_ETHER_INDEX == 2)
233 * - Select bus for bd/buffers (see 28-13)
234 * - Enable Full Duplex in FSMR
236 # define CFG_CMXFCR_MASK (CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
237 # define CFG_CMXFCR_VALUE (CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
238 # define CFG_CPMFCR_RAMTYPE 0
239 # define CFG_FCC_PSMR (FCC_PSMR_FDE | FCC_PSMR_LPB)
241 #elif defined(CONFIG_ETHER_ON_FCC) && (CONFIG_ETHER_INDEX == 3)
246 * - Select bus for bd/buffers (see 28-13)
247 * - Enable Full Duplex in FSMR
249 # define CFG_CMXFCR_MASK (CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK)
250 # define CFG_CMXFCR_VALUE (CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16)
251 # define CFG_CPMFCR_RAMTYPE 0
252 # define CFG_FCC_PSMR (FCC_PSMR_FDE | FCC_PSMR_LPB)
254 #endif /* CONFIG_ETHER_ON_FCC, CONFIG_ETHER_INDEX */
256 /* Define this to reserve an entire FLASH sector (256 KB) for
257 * environment variables. Otherwise, the environment will be
258 * put in the same sector as U-Boot, and changing variables
259 * will erase U-Boot temporarily
261 #define CFG_ENV_IN_OWN_SECT
263 /* Define to allow the user to overwrite serial and ethaddr */
264 #define CONFIG_ENV_OVERWRITE
266 /* What should the console's baud rate be? */
267 #define CONFIG_BAUDRATE 115200
269 /* Ethernet MAC address - This is set to all zeros to force an
270 * an error if we use BOOTP without setting
273 #define CONFIG_ETHADDR 00:00:00:00:00:00
275 /* Set to a positive value to delay for running BOOTCOMMAND */
276 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
278 /* Be selective on what keys can delay or stop the autoboot process
281 #define CONFIG_AUTOBOOT_KEYED
282 #define CONFIG_AUTOBOOT_PROMPT "Autobooting in %d seconds, press \" \" to stop\n"
283 #define CONFIG_AUTOBOOT_STOP_STR " "
284 #undef CONFIG_AUTOBOOT_DELAY_STR
285 #define DEBUG_BOOTKEYS 0
290 #define CONFIG_BOOTP_SUBNETMASK
291 #define CONFIG_BOOTP_GATEWAY
292 #define CONFIG_BOOTP_HOSTNAME
293 #define CONFIG_BOOTP_BOOTPATH
295 #define CONFIG_BOOTP_BOOTFILESIZE
296 #define CONFIG_BOOTP_DNS
298 /* undef this to save memory */
301 /* Monitor Command Prompt */
302 #define CFG_PROMPT "=> "
306 * Command line configuration.
308 #include <config_cmd_default.h>
310 #define CONFIG_CMD_BEDBUG
311 #define CONFIG_CMD_ELF
312 #define CONFIG_CMD_ASKENV
313 #define CONFIG_CMD_REGINFO
314 #define CONFIG_CMD_IMMAP
315 #define CONFIG_CMD_MII
317 #undef CONFIG_CMD_KGDB
320 /* Where do the internal registers live? */
321 #define CFG_IMMR 0xf0000000
323 /* Use the HUSH parser */
324 #define CFG_HUSH_PARSER
325 #ifdef CFG_HUSH_PARSER
326 #define CFG_PROMPT_HUSH_PS2 "> "
329 /* What is the address of IO controller */
330 #define CFG_IO_BASE 0xe0000000
332 /*****************************************************************************
334 * You should not have to modify any of the following settings
336 *****************************************************************************/
338 #define CONFIG_MPC8260 1 /* This is an MPC8260 CPU */
339 #define CONFIG_GW8260 1 /* on an GW8260 Board */
340 #define CONFIG_CPM2 1 /* Has a CPM2 */
343 * Miscellaneous configurable options
345 #if defined(CONFIG_CMD_KGDB)
346 # define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
348 # define CFG_CBSIZE 256 /* Console I/O Buffer Size */
351 /* Print Buffer Size */
352 #define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT)+16)
354 #define CFG_MAXARGS 8 /* max number of command args */
356 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
358 /* Convert clocks to MHZ when passing board info to kernel.
359 * This must be defined for eariler 2.4 kernels (~2.4.4).
361 #define CONFIG_CLOCKS_IN_MHZ
363 #define CFG_LOAD_ADDR 0x100000 /* default load address */
364 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
367 /* memtest works from the end of the exception vector table
368 * to the end of the DRAM less monitor and malloc area
370 #define CFG_MEMTEST_START 0x2000
372 #define CFG_STACK_USAGE 0x10000 /* Reserve 64k for the stack usage */
374 #define CFG_MEM_END_USAGE ( CFG_MONITOR_LEN \
376 + CFG_ENV_SECT_SIZE \
379 #define CFG_MEMTEST_END ( CFG_SDRAM_SIZE * 1024 * 1024 \
380 - CFG_MEM_END_USAGE )
382 /* valid baudrates */
383 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
386 * Low Level Configuration Settings
387 * (address mappings, register initial values, etc.)
388 * You should know what you are doing if you make changes here.
391 #define CFG_FLASH_BASE CFG_FLASH0_BASE
392 #define CFG_FLASH_SIZE CFG_FLASH0_SIZE
393 #define CFG_SDRAM_BASE CFG_SDRAM0_BASE
394 #define CFG_SDRAM_SIZE CFG_SDRAM0_SIZE
396 /*-----------------------------------------------------------------------
397 * Hard Reset Configuration Words
399 #if defined(CFG_SBC_BOOT_LOW)
400 # define CFG_SBC_HRCW_BOOT_FLAGS (HRCW_CIP | HRCW_BMS)
402 # define CFG_SBC_HRCW_BOOT_FLAGS (0)
403 #endif /* defined(CFG_SBC_BOOT_LOW) */
405 /* get the HRCW ISB field from CFG_IMMR */
406 #define CFG_SBC_HRCW_IMMR ( ((CFG_IMMR & 0x10000000) >> 10) | \
407 ((CFG_IMMR & 0x01000000) >> 7) | \
408 ((CFG_IMMR & 0x00100000) >> 4) )
410 #define CFG_HRCW_MASTER ( HRCW_BPS11 | \
412 CFG_SBC_HRCW_IMMR | \
417 (CFG_SBC_MODCK_H & HRCW_MODCK_H1111) | \
418 CFG_SBC_HRCW_BOOT_FLAGS )
421 #define CFG_HRCW_SLAVE1 0
422 #define CFG_HRCW_SLAVE2 0
423 #define CFG_HRCW_SLAVE3 0
424 #define CFG_HRCW_SLAVE4 0
425 #define CFG_HRCW_SLAVE5 0
426 #define CFG_HRCW_SLAVE6 0
427 #define CFG_HRCW_SLAVE7 0
429 /*-----------------------------------------------------------------------
430 * Definitions for initial stack pointer and data area (in DPRAM)
432 #define CFG_INIT_RAM_ADDR CFG_IMMR
433 #define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
434 #define CFG_GBL_DATA_SIZE 128 /* bytes reserved for initial data */
435 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
436 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
438 /*-----------------------------------------------------------------------
439 * Start addresses for the final memory configuration
440 * (Set up by the startup code)
441 * Please note that CFG_SDRAM_BASE _must_ start at 0
442 * Note also that the logic that sets CFG_RAMBOOT is platform dependent.
444 #define CFG_MONITOR_BASE CFG_FLASH0_BASE
446 #define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */
447 #define CFG_MALLOC_LEN (128 * 1024) /* Reserve 128 kB for malloc() */
450 * For booting Linux, the board info and command line data
451 * have to be in the first 8 MB of memory, since this is
452 * the maximum mapped by the Linux kernel during initialization.
454 #define CFG_BOOTMAPSZ (8 * 1024 * 1024) /* Initial Memory map for Linux */
456 /*-----------------------------------------------------------------------
457 * FLASH and environment organization
459 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
460 #define CFG_MAX_FLASH_SECT 32 /* max number of sectors on one chip */
462 #define CFG_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
463 #define CFG_FLASH_WRITE_TOUT 1 /* Timeout for Flash Write (in ms) */
465 #define CFG_ENV_IS_IN_FLASH 1
467 #ifdef CFG_ENV_IN_OWN_SECT
468 # define CFG_ENV_ADDR (CFG_MONITOR_BASE + (256 * 1024))
469 # define CFG_ENV_SECT_SIZE (256 * 1024)
471 # define CFG_ENV_SIZE (16 * 1024)/* Size of Environment Sector */
472 # define CFG_ENV_ADD ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) - CFG_ENV_SIZE)
473 # define CFG_ENV_SECT_SIZE (256 * 1024)/* see README - env sect real size */
474 #endif /* CFG_ENV_IN_OWN_SECT */
476 /*-----------------------------------------------------------------------
477 * Cache Configuration
479 #define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
481 #if defined(CONFIG_CMD_KGDB)
482 # define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value */
485 /*-----------------------------------------------------------------------
486 * HIDx - Hardware Implementation-dependent Registers 2-11
487 *-----------------------------------------------------------------------
488 * HID0 also contains cache control - initially enable both caches and
489 * invalidate contents, then the final state leaves only the instruction
490 * cache enabled. Note that Power-On and Hard reset invalidate the caches,
491 * but Soft reset does not.
493 * HID1 has only read-only information - nothing to set.
495 #define CFG_HID0_INIT (HID0_ICE |\
502 #define CFG_HID0_FINAL (HID0_ICE |\
508 /*-----------------------------------------------------------------------
509 * RMR - Reset Mode Register
510 *-----------------------------------------------------------------------
514 /*-----------------------------------------------------------------------
515 * BCR - Bus Configuration 4-25
516 *-----------------------------------------------------------------------
518 #define CFG_BCR (BCR_ETM)
520 /*-----------------------------------------------------------------------
521 * SIUMCR - SIU Module Configuration 4-31
522 *-----------------------------------------------------------------------
524 #define CFG_SIUMCR (SIUMCR_DPPC11 |\
530 /*-----------------------------------------------------------------------
531 * SYPCR - System Protection Control 11-9
532 * SYPCR can only be written once after reset!
533 *-----------------------------------------------------------------------
534 * Watchdog & Bus Monitor Timer max, 60x Bus Monitor enable
536 #define CFG_SYPCR (SYPCR_SWTC |\
543 /*-----------------------------------------------------------------------
544 * TMCNTSC - Time Counter Status and Control 4-40
545 *-----------------------------------------------------------------------
546 * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
547 * and enable Time Counter
549 #define CFG_TMCNTSC (TMCNTSC_SEC |\
554 /*-----------------------------------------------------------------------
555 * PISCR - Periodic Interrupt Status and Control 4-42
556 *-----------------------------------------------------------------------
557 * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
560 #define CFG_PISCR (PISCR_PS |\
564 /*-----------------------------------------------------------------------
565 * SCCR - System Clock Control 9-8
566 *-----------------------------------------------------------------------
570 /*-----------------------------------------------------------------------
571 * RCCR - RISC Controller Configuration 13-7
572 *-----------------------------------------------------------------------
577 * Initialize Memory Controller:
579 * Bank Bus Machine PortSz Device
580 * ---- --- ------- ------ ------
581 * 0 60x GPCM 32 bit FLASH (SIMM - 4MB)
582 * 1 60x GPCM 32 bit unused
583 * 2 60x SDRAM 64 bit SDRAM (DIMM - 16MB or 64MB)
584 * 3 60x SDRAM 64 bit unused
585 * 4 Local GPCM 8 bit IO (on board - 64k)
586 * 5 60x GPCM 8 bit unused
587 * 6 60x GPCM 8 bit unused
588 * 7 60x GPCM 8 bit unused
592 /*-----------------------------------------------------------------------
593 * BR0 - Base Register
594 * Ref: Section 10.3.1 on page 10-14
595 * OR0 - Option Register
596 * Ref: Section 10.3.2 on page 10-18
597 *-----------------------------------------------------------------------
600 /* Bank 0,1 - FLASH SIMM
602 * This expects the FLASH SIMM to be connected to *CS0
603 * It consists of 4 AM29F016D parts.
605 * Note: For the 8 MB SIMM, *CS1 is unused.
608 /* BR0 is configured as follows:
610 * - Base address of 0x40000000
612 * - Data errors checking is disabled
613 * - Read and write access
615 * - Access are handled by the memory controller according to MSEL
616 * - Not used for atomic operations
617 * - No data pipelining is done
620 #define CFG_BR0_PRELIM ((CFG_FLASH0_BASE & BRx_BA_MSK) |\
625 /* OR0 is configured as follows:
628 * - *BCTL0 is asserted upon access to the current memory bank
629 * - *CW / *WE are negated a quarter of a clock earlier
630 * - *CS is output at the same time as the address lines
631 * - Uses a clock cycle length of 5
632 * - *PSDVAL is generated internally by the memory controller
633 * unless *GTA is asserted earlier externally.
634 * - Relaxed timing is generated by the GPCM for accesses
635 * initiated to this memory region.
636 * - One idle clock is inserted between a read access from the
637 * current bank and the next access.
639 #define CFG_OR0_PRELIM (MEG_TO_AM(CFG_FLASH0_SIZE) |\
646 /*-----------------------------------------------------------------------
647 * BR2 - Base Register
648 * Ref: Section 10.3.1 on page 10-14
649 * OR2 - Option Register
650 * Ref: Section 10.3.2 on page 10-16
651 *-----------------------------------------------------------------------
654 /* Bank 2 - SDRAM DIMM
657 * 64MB DIMM: P/N 1W-8864X8-4-P1-EST or
658 * MT4LSDT864AG-10EB1 (Micron)
660 * Note: *CS3 is unused for this DIMM
663 /* With a 16 MB or 64 MB DIMM, the BR2 is configured as follows:
665 * - Base address of 0x00000000
666 * - 64 bit port size (60x bus only)
667 * - Data errors checking is disabled
668 * - Read and write access
670 * - Access are handled by the memory controller according to MSEL
671 * - Not used for atomic operations
672 * - No data pipelining is done
675 #define CFG_BR2_PRELIM ((CFG_SDRAM0_BASE & BRx_BA_MSK) |\
680 /* With a 16 MB DIMM, the OR2 is configured as follows:
683 * - 2 internal banks per device
684 * - Row start address bit is A9 with PSDMR[PBI] = 0
685 * - 11 row address lines
686 * - Back-to-back page mode
687 * - Internal bank interleaving within save device enabled
689 #if (CFG_SDRAM0_SIZE == 16)
690 #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM0_SIZE) |\
692 ORxS_ROWST_PBI0_A9 |\
695 /* With a 16 MB DIMM, the PSDMR is configured as follows:
697 * - Page Based Interleaving,
699 * - Address Multiplexing where A5 is output on A14 pin
700 * (A6 on A15, and so on),
701 * - use address pins A16-A18 as bank select,
702 * - A9 is output on SDA10 during an ACTIVATE command,
703 * - earliest timing for ACTIVATE command after REFRESH command is 7 clocks,
704 * - earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
706 * - earliest timing for READ/WRITE command after ACTIVATE command is
708 * - earliest timing for PRECHARGE after last data was read is 1 clock,
709 * - earliest timing for PRECHARGE after last data was written is 1 clock,
710 * - CAS Latency is 2.
713 /*-----------------------------------------------------------------------
714 * PSDMR - 60x Bus SDRAM Mode Register
715 * Ref: Section 10.3.3 on page 10-21
716 *-----------------------------------------------------------------------
718 #define CFG_PSDMR (PSDMR_RFEN |\
719 PSDMR_SDAM_A14_IS_A5 |\
720 PSDMR_BSMA_A16_A18 |\
721 PSDMR_SDA10_PBI0_A9 |\
728 #endif /* (CFG_SDRAM0_SIZE == 16) */
730 /* With a 64 MB DIMM, the OR2 is configured as follows:
733 * - 4 internal banks per device
734 * - Row start address bit is A8 with PSDMR[PBI] = 0
735 * - 12 row address lines
736 * - Back-to-back page mode
737 * - Internal bank interleaving within save device enabled
739 #if (CFG_SDRAM0_SIZE == 64)
740 #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM0_SIZE) |\
742 ORxS_ROWST_PBI0_A8 |\
745 /* With a 64 MB DIMM, the PSDMR is configured as follows:
747 * - Page Based Interleaving,
749 * - Address Multiplexing where A5 is output on A14 pin
750 * (A6 on A15, and so on),
751 * - use address pins A14-A16 as bank select,
752 * - A9 is output on SDA10 during an ACTIVATE command,
753 * - earliest timing for ACTIVATE command after REFRESH command is 7 clocks,
754 * - earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
756 * - earliest timing for READ/WRITE command after ACTIVATE command is
758 * - earliest timing for PRECHARGE after last data was read is 1 clock,
759 * - earliest timing for PRECHARGE after last data was written is 1 clock,
760 * - CAS Latency is 2.
763 /*-----------------------------------------------------------------------
764 * PSDMR - 60x Bus SDRAM Mode Register
765 * Ref: Section 10.3.3 on page 10-21
766 *-----------------------------------------------------------------------
768 #define CFG_PSDMR (PSDMR_RFEN |\
769 PSDMR_SDAM_A14_IS_A5 |\
770 PSDMR_BSMA_A14_A16 |\
771 PSDMR_SDA10_PBI0_A9 |\
778 #endif /* (CFG_SDRAM0_SIZE == 64) */
780 #define CFG_PSRT 0x0e
781 #define CFG_MPTPR MPTPR_PTP_DIV32
784 /*-----------------------------------------------------------------------
785 * BR4 - Base Register
786 * Ref: Section 10.3.1 on page 10-14
787 * OR4 - Option Register
788 * Ref: Section 10.3.2 on page 10-18
789 *-----------------------------------------------------------------------
791 /* Bank 4 - Onboard Memory Mapped IO controller
793 * This expects the onboard IO controller to connected to *CS4 and
795 * - Base address of 0xe0000000
796 * - 8 bit port size (local bus only)
797 * - Read and write access
799 * - Not used for atomic operations
800 * - No data pipelining is done
802 * - extended hold time
807 # define CFG_BR4_PRELIM ((CFG_IO_BASE & BRx_BA_MSK) |\
812 # define CFG_OR4_PRELIM (ORxG_AM_MSK |\
815 #endif /* CFG_IO_BASE */
818 * Internal Definitions
822 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
823 #define BOOTFLAG_WARM 0x02 /* Software reboot */
825 #endif /* __CONFIG_H */