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 \
283 "Autobooting in %d seconds, press \" \" to stop\n", bootdelay
284 #define CONFIG_AUTOBOOT_STOP_STR " "
285 #undef CONFIG_AUTOBOOT_DELAY_STR
286 #define DEBUG_BOOTKEYS 0
291 #define CONFIG_BOOTP_SUBNETMASK
292 #define CONFIG_BOOTP_GATEWAY
293 #define CONFIG_BOOTP_HOSTNAME
294 #define CONFIG_BOOTP_BOOTPATH
296 #define CONFIG_BOOTP_BOOTFILESIZE
297 #define CONFIG_BOOTP_DNS
299 /* undef this to save memory */
302 /* Monitor Command Prompt */
303 #define CFG_PROMPT "=> "
307 * Command line configuration.
309 #include <config_cmd_default.h>
311 #define CONFIG_CMD_BEDBUG
312 #define CONFIG_CMD_ELF
313 #define CONFIG_CMD_ASKENV
314 #define CONFIG_CMD_REGINFO
315 #define CONFIG_CMD_IMMAP
316 #define CONFIG_CMD_MII
318 #undef CONFIG_CMD_KGDB
321 /* Where do the internal registers live? */
322 #define CFG_IMMR 0xf0000000
324 /* Use the HUSH parser */
325 #define CFG_HUSH_PARSER
326 #ifdef CFG_HUSH_PARSER
327 #define CFG_PROMPT_HUSH_PS2 "> "
330 /* What is the address of IO controller */
331 #define CFG_IO_BASE 0xe0000000
333 /*****************************************************************************
335 * You should not have to modify any of the following settings
337 *****************************************************************************/
339 #define CONFIG_MPC8260 1 /* This is an MPC8260 CPU */
340 #define CONFIG_GW8260 1 /* on an GW8260 Board */
341 #define CONFIG_CPM2 1 /* Has a CPM2 */
344 * Miscellaneous configurable options
346 #if defined(CONFIG_CMD_KGDB)
347 # define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
349 # define CFG_CBSIZE 256 /* Console I/O Buffer Size */
352 /* Print Buffer Size */
353 #define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT)+16)
355 #define CFG_MAXARGS 8 /* max number of command args */
357 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
359 /* Convert clocks to MHZ when passing board info to kernel.
360 * This must be defined for eariler 2.4 kernels (~2.4.4).
362 #define CONFIG_CLOCKS_IN_MHZ
364 #define CFG_LOAD_ADDR 0x100000 /* default load address */
365 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
368 /* memtest works from the end of the exception vector table
369 * to the end of the DRAM less monitor and malloc area
371 #define CFG_MEMTEST_START 0x2000
373 #define CFG_STACK_USAGE 0x10000 /* Reserve 64k for the stack usage */
375 #define CFG_MEM_END_USAGE ( CFG_MONITOR_LEN \
377 + CFG_ENV_SECT_SIZE \
380 #define CFG_MEMTEST_END ( CFG_SDRAM_SIZE * 1024 * 1024 \
381 - CFG_MEM_END_USAGE )
383 /* valid baudrates */
384 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
387 * Low Level Configuration Settings
388 * (address mappings, register initial values, etc.)
389 * You should know what you are doing if you make changes here.
392 #define CFG_FLASH_BASE CFG_FLASH0_BASE
393 #define CFG_FLASH_SIZE CFG_FLASH0_SIZE
394 #define CFG_SDRAM_BASE CFG_SDRAM0_BASE
395 #define CFG_SDRAM_SIZE CFG_SDRAM0_SIZE
397 /*-----------------------------------------------------------------------
398 * Hard Reset Configuration Words
400 #if defined(CFG_SBC_BOOT_LOW)
401 # define CFG_SBC_HRCW_BOOT_FLAGS (HRCW_CIP | HRCW_BMS)
403 # define CFG_SBC_HRCW_BOOT_FLAGS (0)
404 #endif /* defined(CFG_SBC_BOOT_LOW) */
406 /* get the HRCW ISB field from CFG_IMMR */
407 #define CFG_SBC_HRCW_IMMR ( ((CFG_IMMR & 0x10000000) >> 10) | \
408 ((CFG_IMMR & 0x01000000) >> 7) | \
409 ((CFG_IMMR & 0x00100000) >> 4) )
411 #define CFG_HRCW_MASTER ( HRCW_BPS11 | \
413 CFG_SBC_HRCW_IMMR | \
418 (CFG_SBC_MODCK_H & HRCW_MODCK_H1111) | \
419 CFG_SBC_HRCW_BOOT_FLAGS )
422 #define CFG_HRCW_SLAVE1 0
423 #define CFG_HRCW_SLAVE2 0
424 #define CFG_HRCW_SLAVE3 0
425 #define CFG_HRCW_SLAVE4 0
426 #define CFG_HRCW_SLAVE5 0
427 #define CFG_HRCW_SLAVE6 0
428 #define CFG_HRCW_SLAVE7 0
430 /*-----------------------------------------------------------------------
431 * Definitions for initial stack pointer and data area (in DPRAM)
433 #define CFG_INIT_RAM_ADDR CFG_IMMR
434 #define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
435 #define CFG_GBL_DATA_SIZE 128 /* bytes reserved for initial data */
436 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
437 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
439 /*-----------------------------------------------------------------------
440 * Start addresses for the final memory configuration
441 * (Set up by the startup code)
442 * Please note that CFG_SDRAM_BASE _must_ start at 0
443 * Note also that the logic that sets CFG_RAMBOOT is platform dependent.
445 #define CFG_MONITOR_BASE CFG_FLASH0_BASE
447 #define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */
448 #define CFG_MALLOC_LEN (128 * 1024) /* Reserve 128 kB for malloc() */
451 * For booting Linux, the board info and command line data
452 * have to be in the first 8 MB of memory, since this is
453 * the maximum mapped by the Linux kernel during initialization.
455 #define CFG_BOOTMAPSZ (8 * 1024 * 1024) /* Initial Memory map for Linux */
457 /*-----------------------------------------------------------------------
458 * FLASH and environment organization
460 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
461 #define CFG_MAX_FLASH_SECT 32 /* max number of sectors on one chip */
463 #define CFG_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
464 #define CFG_FLASH_WRITE_TOUT 1 /* Timeout for Flash Write (in ms) */
466 #define CFG_ENV_IS_IN_FLASH 1
468 #ifdef CFG_ENV_IN_OWN_SECT
469 # define CFG_ENV_ADDR (CFG_MONITOR_BASE + (256 * 1024))
470 # define CFG_ENV_SECT_SIZE (256 * 1024)
472 # define CFG_ENV_SIZE (16 * 1024)/* Size of Environment Sector */
473 # define CFG_ENV_ADD ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) - CFG_ENV_SIZE)
474 # define CFG_ENV_SECT_SIZE (256 * 1024)/* see README - env sect real size */
475 #endif /* CFG_ENV_IN_OWN_SECT */
477 /*-----------------------------------------------------------------------
478 * Cache Configuration
480 #define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
482 #if defined(CONFIG_CMD_KGDB)
483 # define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value */
486 /*-----------------------------------------------------------------------
487 * HIDx - Hardware Implementation-dependent Registers 2-11
488 *-----------------------------------------------------------------------
489 * HID0 also contains cache control - initially enable both caches and
490 * invalidate contents, then the final state leaves only the instruction
491 * cache enabled. Note that Power-On and Hard reset invalidate the caches,
492 * but Soft reset does not.
494 * HID1 has only read-only information - nothing to set.
496 #define CFG_HID0_INIT (HID0_ICE |\
503 #define CFG_HID0_FINAL (HID0_ICE |\
509 /*-----------------------------------------------------------------------
510 * RMR - Reset Mode Register
511 *-----------------------------------------------------------------------
515 /*-----------------------------------------------------------------------
516 * BCR - Bus Configuration 4-25
517 *-----------------------------------------------------------------------
519 #define CFG_BCR (BCR_ETM)
521 /*-----------------------------------------------------------------------
522 * SIUMCR - SIU Module Configuration 4-31
523 *-----------------------------------------------------------------------
525 #define CFG_SIUMCR (SIUMCR_DPPC11 |\
531 /*-----------------------------------------------------------------------
532 * SYPCR - System Protection Control 11-9
533 * SYPCR can only be written once after reset!
534 *-----------------------------------------------------------------------
535 * Watchdog & Bus Monitor Timer max, 60x Bus Monitor enable
537 #define CFG_SYPCR (SYPCR_SWTC |\
544 /*-----------------------------------------------------------------------
545 * TMCNTSC - Time Counter Status and Control 4-40
546 *-----------------------------------------------------------------------
547 * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
548 * and enable Time Counter
550 #define CFG_TMCNTSC (TMCNTSC_SEC |\
555 /*-----------------------------------------------------------------------
556 * PISCR - Periodic Interrupt Status and Control 4-42
557 *-----------------------------------------------------------------------
558 * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
561 #define CFG_PISCR (PISCR_PS |\
565 /*-----------------------------------------------------------------------
566 * SCCR - System Clock Control 9-8
567 *-----------------------------------------------------------------------
571 /*-----------------------------------------------------------------------
572 * RCCR - RISC Controller Configuration 13-7
573 *-----------------------------------------------------------------------
578 * Initialize Memory Controller:
580 * Bank Bus Machine PortSz Device
581 * ---- --- ------- ------ ------
582 * 0 60x GPCM 32 bit FLASH (SIMM - 4MB)
583 * 1 60x GPCM 32 bit unused
584 * 2 60x SDRAM 64 bit SDRAM (DIMM - 16MB or 64MB)
585 * 3 60x SDRAM 64 bit unused
586 * 4 Local GPCM 8 bit IO (on board - 64k)
587 * 5 60x GPCM 8 bit unused
588 * 6 60x GPCM 8 bit unused
589 * 7 60x GPCM 8 bit unused
593 /*-----------------------------------------------------------------------
594 * BR0 - Base Register
595 * Ref: Section 10.3.1 on page 10-14
596 * OR0 - Option Register
597 * Ref: Section 10.3.2 on page 10-18
598 *-----------------------------------------------------------------------
601 /* Bank 0,1 - FLASH SIMM
603 * This expects the FLASH SIMM to be connected to *CS0
604 * It consists of 4 AM29F016D parts.
606 * Note: For the 8 MB SIMM, *CS1 is unused.
609 /* BR0 is configured as follows:
611 * - Base address of 0x40000000
613 * - Data errors checking is disabled
614 * - Read and write access
616 * - Access are handled by the memory controller according to MSEL
617 * - Not used for atomic operations
618 * - No data pipelining is done
621 #define CFG_BR0_PRELIM ((CFG_FLASH0_BASE & BRx_BA_MSK) |\
626 /* OR0 is configured as follows:
629 * - *BCTL0 is asserted upon access to the current memory bank
630 * - *CW / *WE are negated a quarter of a clock earlier
631 * - *CS is output at the same time as the address lines
632 * - Uses a clock cycle length of 5
633 * - *PSDVAL is generated internally by the memory controller
634 * unless *GTA is asserted earlier externally.
635 * - Relaxed timing is generated by the GPCM for accesses
636 * initiated to this memory region.
637 * - One idle clock is inserted between a read access from the
638 * current bank and the next access.
640 #define CFG_OR0_PRELIM (MEG_TO_AM(CFG_FLASH0_SIZE) |\
647 /*-----------------------------------------------------------------------
648 * BR2 - Base Register
649 * Ref: Section 10.3.1 on page 10-14
650 * OR2 - Option Register
651 * Ref: Section 10.3.2 on page 10-16
652 *-----------------------------------------------------------------------
655 /* Bank 2 - SDRAM DIMM
658 * 64MB DIMM: P/N 1W-8864X8-4-P1-EST or
659 * MT4LSDT864AG-10EB1 (Micron)
661 * Note: *CS3 is unused for this DIMM
664 /* With a 16 MB or 64 MB DIMM, the BR2 is configured as follows:
666 * - Base address of 0x00000000
667 * - 64 bit port size (60x bus only)
668 * - Data errors checking is disabled
669 * - Read and write access
671 * - Access are handled by the memory controller according to MSEL
672 * - Not used for atomic operations
673 * - No data pipelining is done
676 #define CFG_BR2_PRELIM ((CFG_SDRAM0_BASE & BRx_BA_MSK) |\
681 /* With a 16 MB DIMM, the OR2 is configured as follows:
684 * - 2 internal banks per device
685 * - Row start address bit is A9 with PSDMR[PBI] = 0
686 * - 11 row address lines
687 * - Back-to-back page mode
688 * - Internal bank interleaving within save device enabled
690 #if (CFG_SDRAM0_SIZE == 16)
691 #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM0_SIZE) |\
693 ORxS_ROWST_PBI0_A9 |\
696 /* With a 16 MB DIMM, the PSDMR is configured as follows:
698 * - Page Based Interleaving,
700 * - Address Multiplexing where A5 is output on A14 pin
701 * (A6 on A15, and so on),
702 * - use address pins A16-A18 as bank select,
703 * - A9 is output on SDA10 during an ACTIVATE command,
704 * - earliest timing for ACTIVATE command after REFRESH command is 7 clocks,
705 * - earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
707 * - earliest timing for READ/WRITE command after ACTIVATE command is
709 * - earliest timing for PRECHARGE after last data was read is 1 clock,
710 * - earliest timing for PRECHARGE after last data was written is 1 clock,
711 * - CAS Latency is 2.
714 /*-----------------------------------------------------------------------
715 * PSDMR - 60x Bus SDRAM Mode Register
716 * Ref: Section 10.3.3 on page 10-21
717 *-----------------------------------------------------------------------
719 #define CFG_PSDMR (PSDMR_RFEN |\
720 PSDMR_SDAM_A14_IS_A5 |\
721 PSDMR_BSMA_A16_A18 |\
722 PSDMR_SDA10_PBI0_A9 |\
729 #endif /* (CFG_SDRAM0_SIZE == 16) */
731 /* With a 64 MB DIMM, the OR2 is configured as follows:
734 * - 4 internal banks per device
735 * - Row start address bit is A8 with PSDMR[PBI] = 0
736 * - 12 row address lines
737 * - Back-to-back page mode
738 * - Internal bank interleaving within save device enabled
740 #if (CFG_SDRAM0_SIZE == 64)
741 #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM0_SIZE) |\
743 ORxS_ROWST_PBI0_A8 |\
746 /* With a 64 MB DIMM, the PSDMR is configured as follows:
748 * - Page Based Interleaving,
750 * - Address Multiplexing where A5 is output on A14 pin
751 * (A6 on A15, and so on),
752 * - use address pins A14-A16 as bank select,
753 * - A9 is output on SDA10 during an ACTIVATE command,
754 * - earliest timing for ACTIVATE command after REFRESH command is 7 clocks,
755 * - earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
757 * - earliest timing for READ/WRITE command after ACTIVATE command is
759 * - earliest timing for PRECHARGE after last data was read is 1 clock,
760 * - earliest timing for PRECHARGE after last data was written is 1 clock,
761 * - CAS Latency is 2.
764 /*-----------------------------------------------------------------------
765 * PSDMR - 60x Bus SDRAM Mode Register
766 * Ref: Section 10.3.3 on page 10-21
767 *-----------------------------------------------------------------------
769 #define CFG_PSDMR (PSDMR_RFEN |\
770 PSDMR_SDAM_A14_IS_A5 |\
771 PSDMR_BSMA_A14_A16 |\
772 PSDMR_SDA10_PBI0_A9 |\
779 #endif /* (CFG_SDRAM0_SIZE == 64) */
781 #define CFG_PSRT 0x0e
782 #define CFG_MPTPR MPTPR_PTP_DIV32
785 /*-----------------------------------------------------------------------
786 * BR4 - Base Register
787 * Ref: Section 10.3.1 on page 10-14
788 * OR4 - Option Register
789 * Ref: Section 10.3.2 on page 10-18
790 *-----------------------------------------------------------------------
792 /* Bank 4 - Onboard Memory Mapped IO controller
794 * This expects the onboard IO controller to connected to *CS4 and
796 * - Base address of 0xe0000000
797 * - 8 bit port size (local bus only)
798 * - Read and write access
800 * - Not used for atomic operations
801 * - No data pipelining is done
803 * - extended hold time
808 # define CFG_BR4_PRELIM ((CFG_IO_BASE & BRx_BA_MSK) |\
813 # define CFG_OR4_PRELIM (ORxG_AM_MSK |\
816 #endif /* CFG_IO_BASE */
819 * Internal Definitions
823 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
824 #define BOOTFLAG_WARM 0x02 /* Software reboot */
826 #endif /* __CONFIG_H */