2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
26 * U-Boot port on STx XTc 8xx board
27 * Mostly copied from Panto's NETTA2 board.
34 * High Level Configuration Options
38 #define CONFIG_MPC875 1 /* This is a MPC875 CPU */
39 #define CONFIG_STXXTC 1 /* ...on a STx XTc board */
41 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
42 #undef CONFIG_8xx_CONS_SMC2
43 #undef CONFIG_8xx_CONS_NONE
45 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */
47 #define CONFIG_XIN 10000000 /* 10 MHz input xtal */
49 /* Select one of few clock rates defined later in this file.
51 /* #define MPC8XX_HZ 50000000 */
52 #define MPC8XX_HZ 66666666
54 #define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ
57 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
59 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
62 #undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */
64 #undef CONFIG_BOOTARGS
65 #define CONFIG_BOOTCOMMAND \
67 "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
68 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
71 #define CONFIG_AUTOSCRIPT
72 #define CONFIG_LOADS_ECHO 0 /* echo off for serial download */
73 #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
75 #undef CONFIG_WATCHDOG /* watchdog disabled */
77 #define CONFIG_STATUS_LED 1 /* Status LED enabled */
78 #define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */
80 #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE | CONFIG_BOOTP_NISDOMAIN)
82 #undef CONFIG_MAC_PARTITION
83 #undef CONFIG_DOS_PARTITION
85 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
87 #define CONFIG_NET_MULTI 1 /* the only way to get the FEC in */
88 #define FEC_ENET 1 /* eth.c needs it that way... */
89 #undef CFG_DISCOVER_PHY
93 #define CONFIG_ETHER_ON_FEC1 1
94 #define CONFIG_FEC1_PHY 1 /* phy address of FEC */
95 #undef CONFIG_FEC1_PHY_NORXERR
97 #define CONFIG_ETHER_ON_FEC2 1
98 #define CONFIG_FEC2_PHY 3
99 #undef CONFIG_FEC2_PHY_NORXERR
101 #define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */
105 * Command line configuration.
107 #include <config_cmd_default.h>
109 #define CONFIG_CMD_DHCP
110 #define CONFIG_CMD_MII
111 #define CONFIG_CMD_NAND
112 #define CONFIG_CMD_NFS
113 #define CONFIG_CMD_PING
116 #define CONFIG_BOARD_EARLY_INIT_F 1
117 #define CONFIG_MISC_INIT_R
120 * Miscellaneous configurable options
122 #define CFG_LONGHELP /* undef to save memory */
123 #define CFG_PROMPT "xtc> " /* Monitor Command Prompt */
125 #define CFG_HUSH_PARSER 1
126 #define CFG_PROMPT_HUSH_PS2 "> "
128 #if defined(CONFIG_CMD_KGDB)
129 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
131 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
133 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
134 #define CFG_MAXARGS 16 /* max number of command args */
135 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
137 #define CFG_MEMTEST_START 0x0300000 /* memtest works on */
138 #define CFG_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */
140 #define CFG_LOAD_ADDR 0x100000 /* default load address */
142 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
144 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
147 * Low Level Configuration Settings
148 * (address mappings, register initial values, etc.)
149 * You should know what you are doing if you make changes here.
151 /*-----------------------------------------------------------------------
152 * Internal Memory Mapped Register
154 #define CFG_IMMR 0xFF000000
156 /*-----------------------------------------------------------------------
157 * Definitions for initial stack pointer and data area (in DPRAM)
159 #define CFG_INIT_RAM_ADDR CFG_IMMR
160 #define CFG_INIT_RAM_END 0x3000 /* End of used area in DPRAM */
161 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
162 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
163 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
165 /*-----------------------------------------------------------------------
166 * Start addresses for the final memory configuration
167 * (Set up by the startup code)
168 * Please note that CFG_SDRAM_BASE _must_ start at 0
170 #define CFG_SDRAM_BASE 0x00000000
171 #define CFG_FLASH_BASE 0x40000000
173 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
175 #define CFG_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
178 /* yes this is weird, I know :) */
179 #define CFG_MONITOR_BASE (CFG_FLASH_BASE | 0x00F00000)
180 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
182 #define CFG_RESET_ADDRESS 0x80000000
185 * For booting Linux, the board info and command line data
186 * have to be in the first 8 MB of memory, since this is
187 * the maximum mapped by the Linux kernel during initialization.
189 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
191 /*-----------------------------------------------------------------------
194 #define CFG_ENV_IS_IN_FLASH 1
195 #define CFG_ENV_SECT_SIZE 0x10000
197 #define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x00000000)
198 #define CFG_ENV_OFFSET 0
199 #define CFG_ENV_SIZE 0x4000
201 #define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + 0x00010000)
202 #define CFG_ENV_OFFSET_REDUND 0
203 #define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
205 #define CFG_FLASH_CFI 1
206 #define CFG_FLASH_CFI_DRIVER 1
207 #undef CFG_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */
208 #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
209 #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
211 #define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE, CFG_FLASH_BASE + 0x2000000 }
213 #define CFG_FLASH_PROTECTION
215 /*-----------------------------------------------------------------------
216 * Cache Configuration
218 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
219 #if defined(CONFIG_CMD_KGDB)
220 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
223 /*-----------------------------------------------------------------------
224 * SYPCR - System Protection Control 11-9
225 * SYPCR can only be written once after reset!
226 *-----------------------------------------------------------------------
227 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
229 #if defined(CONFIG_WATCHDOG)
230 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
231 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
233 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
236 /*-----------------------------------------------------------------------
237 * SIUMCR - SIU Module Configuration 11-6
238 *-----------------------------------------------------------------------
239 * PCMCIA config., multi-function pin tri-state
241 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E)
243 /*-----------------------------------------------------------------------
244 * TBSCR - Time Base Status and Control 11-26
245 *-----------------------------------------------------------------------
246 * Clear Reference Interrupt Status, Timebase freezing enabled
248 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
250 /*-----------------------------------------------------------------------
251 * RTCSC - Real-Time Clock Status and Control Register 11-27
252 *-----------------------------------------------------------------------
254 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
256 /*-----------------------------------------------------------------------
257 * PISCR - Periodic Interrupt Status and Control 11-31
258 *-----------------------------------------------------------------------
259 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
261 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
263 /*-----------------------------------------------------------------------
264 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
265 *-----------------------------------------------------------------------
266 * Reset PLL lock status sticky bit, timer expired status bit and timer
267 * interrupt status bit
271 #if CONFIG_XIN == 10000000
273 #if MPC8XX_HZ == 50000000
274 #define CFG_PLPRCR ((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \
275 (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
277 #elif MPC8XX_HZ == 66666666
278 #define CFG_PLPRCR ((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \
279 (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
282 #error unsupported CPU freq for XIN = 10MHz
285 #error unsupported freq for XIN (must be 10MHz)
290 *-----------------------------------------------------------------------
291 * SCCR - System Clock and reset Control Register 15-27
292 *-----------------------------------------------------------------------
293 * Set clock output, timebase and RTC source and divider,
294 * power management and some other internal clocks
296 * Note: When TBS == 0 the timebase is independent of current cpu clock.
299 #define SCCR_MASK SCCR_EBDF11
300 #if MPC8XX_HZ > 66666666
301 #define CFG_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
302 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
303 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
304 SCCR_DFALCD00 | SCCR_EBDF01)
306 #define CFG_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
307 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
308 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
312 /*-----------------------------------------------------------------------
314 *-----------------------------------------------------------------------
317 /*#define CFG_DER 0x2002000F*/
321 * Init Memory Controller:
323 * BR0/1 and OR0/1 (FLASH)
326 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
327 #define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */
329 /* used to re-map FLASH both when starting from SRAM or FLASH:
330 * restrict access enough to keep SRAM working (if any)
331 * but not too much to meddle with FLASH accesses
334 #define FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */
336 #define CFG_REMAP_OR_AM 0x80000000
337 #define CFG_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1))
339 /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
340 #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_BI | OR_SCY_5_CLK | OR_TRLX)
342 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
343 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
344 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
346 #define CFG_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CFG_OR_TIMING_FLASH)
347 #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
350 * BR4 and OR4 (SDRAM)
353 #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */
354 #define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */
356 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
357 #define CFG_OR_TIMING_SDRAM (OR_CSNT_SAM | OR_G5LS)
359 #define CFG_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CFG_OR_TIMING_SDRAM)
360 #define CFG_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V)
363 * Memory Periodic Timer Prescaler
367 * Memory Periodic Timer Prescaler
369 * The Divider for PTA (refresh timer) configuration is based on an
370 * example SDRAM configuration (64 MBit, one bank). The adjustment to
371 * the number of chip selects (NCS) and the actually needed refresh
372 * rate is done by setting MPTPR.
374 * PTA is calculated from
375 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
377 * gclk CPU clock (not bus clock!)
378 * Trefresh Refresh cycle * 4 (four word bursts used)
380 * 4096 Rows from SDRAM example configuration
381 * 1000 factor s -> ms
382 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
383 * 4 Number of refresh cycles per period
384 * 64 Refresh cycle in ms per number of rows
385 * --------------------------------------------
386 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
388 * 50 MHz => 50.000.000 / Divider = 98
389 * 66 Mhz => 66.000.000 / Divider = 129
390 * 80 Mhz => 80.000.000 / Divider = 156
393 #define CFG_MAMR_PTA 234
396 * For 16 MBit, refresh rates could be 31.3 us
397 * (= 64 ms / 2K = 125 / quad bursts).
398 * For a simpler initialization, 15.6 us is used instead.
400 * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
401 * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
403 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
404 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
406 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
407 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
408 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
411 * MAMR settings for SDRAM
415 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
416 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
417 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
420 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
421 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
422 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
425 * Internal Definitions
429 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
430 #define BOOTFLAG_WARM 0x02 /* Software reboot */
432 #define CONFIG_LAST_STAGE_INIT /* needed to reset the damn phys */
434 /****************************************************************/
436 #define NAND_SIZE 0x00010000 /* 64K */
437 #define NAND_BASE 0xF1000000
439 /****************************************************************/
442 #define CFG_NAND_LEGACY
443 #define CFG_NAND_BASE NAND_BASE
444 #define CONFIG_MTD_NAND_ECC_JFFS2
445 #define CONFIG_MTD_NAND_VERIFY_WRITE
446 #define CONFIG_MTD_NAND_UNSAFE
448 #define CFG_MAX_NAND_DEVICE 1
451 #define SECTORSIZE 512
452 #define ADDR_COLUMN 1
454 #define ADDR_COLUMN_PAGE 3
455 #define NAND_ChipID_UNKNOWN 0x00
456 #define NAND_MAX_FLOORS 1
457 #define NAND_MAX_CHIPS 1
459 /* ALE = PC15, CLE = PB23, CE = PA7, F_RY_BY = PA6 */
460 #define NAND_DISABLE_CE(nand) \
462 (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat) |= (1 << (15 - 7)); \
465 #define NAND_ENABLE_CE(nand) \
467 (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat) &= ~(1 << (15 - 7)); \
470 #define NAND_CTL_CLRALE(nandptr) \
472 (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat) &= ~(1 << (15 - 15)); \
475 #define NAND_CTL_SETALE(nandptr) \
477 (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat) |= (1 << (15 - 15)); \
480 #define NAND_CTL_CLRCLE(nandptr) \
482 (((volatile immap_t *)CFG_IMMR)->im_cpm.cp_pbdat) &= ~(1 << (31 - 23)); \
485 #define NAND_CTL_SETCLE(nandptr) \
487 (((volatile immap_t *)CFG_IMMR)->im_cpm.cp_pbdat) |= (1 << (31 - 23)); \
491 #define NAND_WAIT_READY(nand) \
494 while ((((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat & (1 << (15 - 6))) == 0) \
495 if (++_tries > 100000) \
499 #define NAND_WAIT_READY(nand) udelay(12)
502 #define WRITE_NAND_COMMAND(d, adr) \
504 *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
507 #define WRITE_NAND_ADDRESS(d, adr) \
509 *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
512 #define WRITE_NAND(d, adr) \
514 *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
517 #define READ_NAND(adr) \
518 ((unsigned char)(*(volatile unsigned char *)(unsigned long)(adr)))
520 /*****************************************************************************/
522 #define CFG_DIRECT_FLASH_TFTP
523 #define CFG_DIRECT_NAND_TFTP
525 /*****************************************************************************/
527 /* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB,
528 * CxOE and CxRESET. We use the CxOE.
530 #define STATUS_LED_BIT 0x00000080 /* bit 24 */
532 #define STATUS_LED_PERIOD (CFG_HZ / 2)
533 #define STATUS_LED_STATE STATUS_LED_BLINKING
535 #define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */
536 #define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
542 /* led_id_t is unsigned int mask */
543 typedef unsigned int led_id_t;
545 #define __led_toggle(_msk) \
547 ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \
550 #define __led_set(_msk, _st) \
553 ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \
555 ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \
558 #define __led_init(msk, st) __led_set(msk, st)
562 /******************************************************************************/
564 #define CFG_CONSOLE_IS_IN_ENV 1
565 #define CFG_CONSOLE_OVERWRITE_ROUTINE 1
566 #define CFG_CONSOLE_ENV_OVERWRITE 1
568 /******************************************************************************/
570 /* use board specific hardware */
571 #undef CONFIG_WATCHDOG /* watchdog disabled */
572 #define CONFIG_HW_WATCHDOG
573 #define CONFIG_SHOW_ACTIVITY
575 /*****************************************************************************/
577 #define CONFIG_AUTO_COMPLETE 1
578 #define CONFIG_CRC32_VERIFY 1
579 #define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1
581 /*****************************************************************************/
583 /* pass open firmware flat tree */
584 #define CONFIG_OF_FLAT_TREE 1
586 /* maximum size of the flat tree (8K) */
587 #define OF_FLAT_TREE_MAX_SIZE 8192
589 #define OF_CPU "PowerPC,MPC870@0"
590 #define OF_TBCLK (MPC8XX_HZ / 16)
591 #define CONFIG_OF_HAS_BD_T 1
592 #define CONFIG_OF_HAS_UBOOT_ENV 1
594 #endif /* __CONFIG_H */