2 * (C) Copyright 2000-2003
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 * board/config.h - configuration options, board specific
32 * High Level Configuration Options
36 #define CONFIG_MPC823 1 /* This is a MPC823 CPU */
37 #define CONFIG_TQM823L 1 /* ...on a TQM8xxL module */
39 #ifdef CONFIG_LCD /* with LCD controller ? */
40 #define CONFIG_SPLASH_SCREEN /* ... with splashscreen support*/
43 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
44 #undef CONFIG_8xx_CONS_SMC2
45 #undef CONFIG_8xx_CONS_NONE
46 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
48 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
50 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
53 #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */
55 #define CONFIG_BOARD_TYPES 1 /* support board types */
57 #define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo"
59 #undef CONFIG_BOOTARGS
61 #define CONFIG_EXTRA_ENV_SETTINGS \
62 "nfsargs=setenv bootargs root=/dev/nfs rw " \
63 "nfsroot=$(serverip):$(rootpath)\0" \
64 "ramargs=setenv bootargs root=/dev/ram rw\0" \
65 "addip=setenv bootargs $(bootargs) " \
66 "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)" \
67 ":$(hostname):$(netdev):off panic=1\0" \
68 "flash_nfs=run nfsargs addip;" \
69 "bootm $(kernel_addr)\0" \
70 "flash_self=run ramargs addip;" \
71 "bootm $(kernel_addr) $(ramdisk_addr)\0" \
72 "net_nfs=tftp 200000 $(bootfile);run nfsargs addip;bootm\0" \
73 "rootpath=/opt/eldk/ppc_8xx\0" \
74 "bootfile=/tftpboot/TQM860L/uImage\0" \
75 "kernel_addr=40040000\0" \
76 "ramdisk_addr=40100000\0" \
78 #define CONFIG_BOOTCOMMAND "run flash_self"
80 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
81 #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
83 #undef CONFIG_WATCHDOG /* watchdog disabled */
86 # undef CONFIG_STATUS_LED /* disturbs display */
88 # define CONFIG_STATUS_LED 1 /* Status LED enabled */
89 #endif /* CONFIG_LCD */
91 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
93 #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
95 #define CONFIG_MAC_PARTITION
96 #define CONFIG_DOS_PARTITION
98 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
100 #ifdef CONFIG_SPLASH_SCREEN
101 # define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
108 # define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
115 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
116 #include <cmd_confdefs.h>
119 * Miscellaneous configurable options
121 #define CFG_LONGHELP /* undef to save memory */
122 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
125 #define CFG_HUSH_PARSER 1 /* use "hush" command parser */
127 #ifdef CFG_HUSH_PARSER
128 #define CFG_PROMPT_HUSH_PS2 "> "
131 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
132 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
134 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
136 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
137 #define CFG_MAXARGS 16 /* max number of command args */
138 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
140 #define CFG_MEMTEST_START 0x0400000 /* memtest works on */
141 #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
143 #define CFG_LOAD_ADDR 0x100000 /* default load address */
145 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
147 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
150 * Low Level Configuration Settings
151 * (address mappings, register initial values, etc.)
152 * You should know what you are doing if you make changes here.
154 /*-----------------------------------------------------------------------
155 * Internal Memory Mapped Register
157 #define CFG_IMMR 0xFFF00000
159 /*-----------------------------------------------------------------------
160 * Definitions for initial stack pointer and data area (in DPRAM)
162 #define CFG_INIT_RAM_ADDR CFG_IMMR
163 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
164 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
165 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
166 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
168 /*-----------------------------------------------------------------------
169 * Start addresses for the final memory configuration
170 * (Set up by the startup code)
171 * Please note that CFG_SDRAM_BASE _must_ start at 0
173 #define CFG_SDRAM_BASE 0x00000000
174 #define CFG_FLASH_BASE 0x40000000
175 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
176 #define CFG_MONITOR_BASE CFG_FLASH_BASE
177 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
180 * For booting Linux, the board info and command line data
181 * have to be in the first 8 MB of memory, since this is
182 * the maximum mapped by the Linux kernel during initialization.
184 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
186 /*-----------------------------------------------------------------------
189 #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
190 #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
192 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
193 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
195 #define CFG_ENV_IS_IN_FLASH 1
196 #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
197 #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
199 /* Address and size of Redundant Environment Sector */
200 #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SIZE)
201 #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
203 /*-----------------------------------------------------------------------
204 * Hardware Information Block
206 #define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */
207 #define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */
208 #define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */
210 /*-----------------------------------------------------------------------
211 * Cache Configuration
213 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
214 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
215 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
218 /*-----------------------------------------------------------------------
219 * SYPCR - System Protection Control 11-9
220 * SYPCR can only be written once after reset!
221 *-----------------------------------------------------------------------
222 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
224 #if defined(CONFIG_WATCHDOG)
225 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
226 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
228 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
231 /*-----------------------------------------------------------------------
232 * SIUMCR - SIU Module Configuration 11-6
233 *-----------------------------------------------------------------------
234 * PCMCIA config., multi-function pin tri-state
236 #ifndef CONFIG_CAN_DRIVER
237 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
238 #else /* we must activate GPL5 in the SIUMCR for CAN */
239 #define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
240 #endif /* CONFIG_CAN_DRIVER */
242 /*-----------------------------------------------------------------------
243 * TBSCR - Time Base Status and Control 11-26
244 *-----------------------------------------------------------------------
245 * Clear Reference Interrupt Status, Timebase freezing enabled
247 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
249 /*-----------------------------------------------------------------------
250 * RTCSC - Real-Time Clock Status and Control Register 11-27
251 *-----------------------------------------------------------------------
253 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
255 /*-----------------------------------------------------------------------
256 * PISCR - Periodic Interrupt Status and Control 11-31
257 *-----------------------------------------------------------------------
258 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
260 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
262 /*-----------------------------------------------------------------------
263 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
264 *-----------------------------------------------------------------------
265 * Reset PLL lock status sticky bit, timer expired status bit and timer
266 * interrupt status bit
268 * If this is a 80 MHz CPU, set PLL multiplication factor to 5 (5*16=80)!
270 #ifdef CONFIG_80MHz /* for 80 MHz, we use a 16 MHz clock * 5 */
272 ( (5-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
273 #else /* up to 66 MHz we use a 1:1 clock */
274 #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
275 #endif /* CONFIG_80MHz */
277 /*-----------------------------------------------------------------------
278 * SCCR - System Clock and reset Control Register 15-27
279 *-----------------------------------------------------------------------
280 * Set clock output, timebase and RTC source and divider,
281 * power management and some other internal clocks
283 #define SCCR_MASK SCCR_EBDF11
284 #ifdef CONFIG_80MHz /* for 80 MHz, we use a 16 MHz clock * 5 */
285 #define CFG_SCCR (/* SCCR_TBS | */ \
286 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
287 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
289 #else /* up to 66 MHz we use a 1:1 clock */
290 #define CFG_SCCR (SCCR_TBS | \
291 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
292 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
294 #endif /* CONFIG_80MHz */
296 /*-----------------------------------------------------------------------
298 *-----------------------------------------------------------------------
301 #define CFG_PCMCIA_MEM_ADDR (0xE0000000)
302 #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
303 #define CFG_PCMCIA_DMA_ADDR (0xE4000000)
304 #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
305 #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
306 #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
307 #define CFG_PCMCIA_IO_ADDR (0xEC000000)
308 #define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
310 /*-----------------------------------------------------------------------
311 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
312 *-----------------------------------------------------------------------
315 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
317 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
318 #undef CONFIG_IDE_LED /* LED for ide not supported */
319 #undef CONFIG_IDE_RESET /* reset for ide not supported */
321 #define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */
322 #define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
324 #define CFG_ATA_IDE0_OFFSET 0x0000
326 #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR
328 /* Offset for data I/O */
329 #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320)
331 /* Offset for normal register accesses */
332 #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
334 /* Offset for alternate registers */
335 #define CFG_ATA_ALT_OFFSET 0x0100
337 /*-----------------------------------------------------------------------
339 *-----------------------------------------------------------------------
345 * Init Memory Controller:
347 * BR0/1 and OR0/1 (FLASH)
350 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
351 #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */
353 /* used to re-map FLASH both when starting from SRAM or FLASH:
354 * restrict access enough to keep SRAM working (if any)
355 * but not too much to meddle with FLASH accesses
357 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
358 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
363 #if defined(CONFIG_80MHz)
364 /* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
365 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | 0 | OR_CSNT_SAM | \
366 OR_SCY_3_CLK | OR_EHTR | OR_BI)
367 #elif defined(CONFIG_66MHz)
368 /* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
369 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
370 OR_SCY_3_CLK | OR_EHTR | OR_BI)
372 /* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
373 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
374 OR_SCY_2_CLK | OR_EHTR | OR_BI)
375 #endif /*CONFIG_??MHz */
377 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
378 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
379 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
381 #define CFG_OR1_REMAP CFG_OR0_REMAP
382 #define CFG_OR1_PRELIM CFG_OR0_PRELIM
383 #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
386 * BR2/3 and OR2/3 (SDRAM)
389 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
390 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
391 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
393 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
394 #define CFG_OR_TIMING_SDRAM 0x00000A00
396 #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
397 #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
399 #ifndef CONFIG_CAN_DRIVER
400 #define CFG_OR3_PRELIM CFG_OR2_PRELIM
401 #define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
402 #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
403 #define CFG_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
404 #define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
405 #define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA | OR_BI)
406 #define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \
407 BR_PS_8 | BR_MS_UPMB | BR_V )
408 #endif /* CONFIG_CAN_DRIVER */
411 * Memory Periodic Timer Prescaler
413 * The Divider for PTA (refresh timer) configuration is based on an
414 * example SDRAM configuration (64 MBit, one bank). The adjustment to
415 * the number of chip selects (NCS) and the actually needed refresh
416 * rate is done by setting MPTPR.
418 * PTA is calculated from
419 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
421 * gclk CPU clock (not bus clock!)
422 * Trefresh Refresh cycle * 4 (four word bursts used)
424 * 4096 Rows from SDRAM example configuration
425 * 1000 factor s -> ms
426 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
427 * 4 Number of refresh cycles per period
428 * 64 Refresh cycle in ms per number of rows
429 * --------------------------------------------
430 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
432 * 50 MHz => 50.000.000 / Divider = 98
433 * 66 Mhz => 66.000.000 / Divider = 129
434 * 80 Mhz => 80.000.000 / Divider = 156
436 #if defined(CONFIG_80MHz)
437 #define CFG_MAMR_PTA 156
438 #elif defined(CONFIG_66MHz)
439 #define CFG_MAMR_PTA 129
441 #define CFG_MAMR_PTA 98
442 #endif /*CONFIG_??MHz */
445 * For 16 MBit, refresh rates could be 31.3 us
446 * (= 64 ms / 2K = 125 / quad bursts).
447 * For a simpler initialization, 15.6 us is used instead.
449 * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
450 * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
452 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
453 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
455 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
456 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
457 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
460 * MAMR settings for SDRAM
464 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
465 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
466 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
468 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
469 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
470 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
474 * Internal Definitions
478 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
479 #define BOOTFLAG_WARM 0x02 /* Software reboot */
481 #endif /* __CONFIG_H */