2 * (C) Copyright 2000-2005
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 * board/config.h - configuration options, board specific
32 * High Level Configuration Options
36 #define CONFIG_MPC850 1 /* This is a MPC850 CPU */
37 #define CONFIG_TQM850M 1 /* ...on a TQM8xxM module */
39 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
40 #undef CONFIG_8xx_CONS_SMC2
41 #undef CONFIG_8xx_CONS_NONE
42 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
44 #define CONFIG_BOOTCOUNT_LIMIT
46 #define CONFIG_BOARD_TYPES 1 /* support board types */
48 #define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo"
50 #undef CONFIG_BOOTARGS
52 #define CONFIG_EXTRA_ENV_SETTINGS \
54 "nfsargs=setenv bootargs root=/dev/nfs rw " \
55 "nfsroot=${serverip}:${rootpath}\0" \
56 "ramargs=setenv bootargs root=/dev/ram rw\0" \
57 "addip=setenv bootargs ${bootargs} " \
58 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
59 ":${hostname}:${netdev}:off panic=1\0" \
60 "flash_nfs=run nfsargs addip;" \
61 "bootm ${kernel_addr}\0" \
62 "flash_self=run ramargs addip;" \
63 "bootm ${kernel_addr} ${ramdisk_addr}\0" \
64 "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \
65 "rootpath=/opt/eldk/ppc_8xx\0" \
66 "bootfile=/tftpboot/TQM850M/uImage\0" \
67 "kernel_addr=40080000\0" \
68 "ramdisk_addr=40180000\0" \
70 #define CONFIG_BOOTCOMMAND "run flash_self"
72 #define CONFIG_LOADS_ECHO 1 /* echo on 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 */
79 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
84 #define CONFIG_BOOTP_SUBNETMASK
85 #define CONFIG_BOOTP_GATEWAY
86 #define CONFIG_BOOTP_HOSTNAME
87 #define CONFIG_BOOTP_BOOTPATH
88 #define CONFIG_BOOTP_BOOTFILESIZE
91 #define CONFIG_MAC_PARTITION
92 #define CONFIG_DOS_PARTITION
94 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
97 * Command line configuration.
99 #include <config_cmd_default.h>
101 #define CONFIG_CMD_ASKENV
102 #define CONFIG_CMD_DATE
103 #define CONFIG_CMD_DHCP
104 #define CONFIG_CMD_IDE
105 #define CONFIG_CMD_NFS
106 #define CONFIG_CMD_SNTP
110 * Miscellaneous configurable options
112 #define CFG_LONGHELP /* undef to save memory */
113 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
115 #define CONFIG_CMDLINE_EDITING 1 /* add command line history */
116 #define CFG_HUSH_PARSER 1 /* Use the HUSH parser */
117 #ifdef CFG_HUSH_PARSER
118 #define CFG_PROMPT_HUSH_PS2 "> "
121 #if defined(CONFIG_CMD_KGDB)
122 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
124 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
126 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
127 #define CFG_MAXARGS 16 /* max number of command args */
128 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
130 #define CFG_MEMTEST_START 0x0400000 /* memtest works on */
131 #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
133 #define CFG_LOAD_ADDR 0x100000 /* default load address */
135 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
137 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
140 * Low Level Configuration Settings
141 * (address mappings, register initial values, etc.)
142 * You should know what you are doing if you make changes here.
144 /*-----------------------------------------------------------------------
145 * Internal Memory Mapped Register
147 #define CFG_IMMR 0xFFF00000
149 /*-----------------------------------------------------------------------
150 * Definitions for initial stack pointer and data area (in DPRAM)
152 #define CFG_INIT_RAM_ADDR CFG_IMMR
153 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
154 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
155 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
156 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
158 /*-----------------------------------------------------------------------
159 * Start addresses for the final memory configuration
160 * (Set up by the startup code)
161 * Please note that CFG_SDRAM_BASE _must_ start at 0
163 #define CFG_SDRAM_BASE 0x00000000
164 #define CFG_FLASH_BASE 0x40000000
165 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
166 #define CFG_MONITOR_BASE CFG_FLASH_BASE
167 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
170 * For booting Linux, the board info and command line data
171 * have to be in the first 8 MB of memory, since this is
172 * the maximum mapped by the Linux kernel during initialization.
174 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
176 /*-----------------------------------------------------------------------
179 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
180 #define CFG_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
182 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
183 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
185 #define CFG_ENV_IS_IN_FLASH 1
186 #define CFG_ENV_OFFSET 0x40000 /* Offset of Environment Sector */
187 #define CFG_ENV_SIZE 0x08000 /* Total Size of Environment Sector */
188 #define CFG_ENV_SECT_SIZE 0x20000 /* Total Size of Environment Sector */
190 /* Address and size of Redundant Environment Sector */
191 #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SECT_SIZE)
192 #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
194 /*-----------------------------------------------------------------------
195 * Hardware Information Block
197 #define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */
198 #define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */
199 #define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */
201 /*-----------------------------------------------------------------------
202 * Cache Configuration
204 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
205 #if defined(CONFIG_CMD_KGDB)
206 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
209 /*-----------------------------------------------------------------------
210 * SYPCR - System Protection Control 11-9
211 * SYPCR can only be written once after reset!
212 *-----------------------------------------------------------------------
213 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
215 #if defined(CONFIG_WATCHDOG)
216 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
217 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
219 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
222 /*-----------------------------------------------------------------------
223 * SIUMCR - SIU Module Configuration 11-6
224 *-----------------------------------------------------------------------
225 * PCMCIA config., multi-function pin tri-state
227 #ifndef CONFIG_CAN_DRIVER
228 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
229 #else /* we must activate GPL5 in the SIUMCR for CAN */
230 #define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
231 #endif /* CONFIG_CAN_DRIVER */
233 /*-----------------------------------------------------------------------
234 * TBSCR - Time Base Status and Control 11-26
235 *-----------------------------------------------------------------------
236 * Clear Reference Interrupt Status, Timebase freezing enabled
238 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
240 /*-----------------------------------------------------------------------
241 * RTCSC - Real-Time Clock Status and Control Register 11-27
242 *-----------------------------------------------------------------------
244 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
246 /*-----------------------------------------------------------------------
247 * PISCR - Periodic Interrupt Status and Control 11-31
248 *-----------------------------------------------------------------------
249 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
251 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
253 /*-----------------------------------------------------------------------
254 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
255 *-----------------------------------------------------------------------
256 * Reset PLL lock status sticky bit, timer expired status bit and timer
257 * interrupt status bit
259 #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
261 /*-----------------------------------------------------------------------
262 * SCCR - System Clock and reset Control Register 15-27
263 *-----------------------------------------------------------------------
264 * Set clock output, timebase and RTC source and divider,
265 * power management and some other internal clocks
267 #define SCCR_MASK SCCR_EBDF11
268 #define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
269 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
272 /*-----------------------------------------------------------------------
274 *-----------------------------------------------------------------------
277 #define CFG_PCMCIA_MEM_ADDR (0xE0000000)
278 #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
279 #define CFG_PCMCIA_DMA_ADDR (0xE4000000)
280 #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
281 #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
282 #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
283 #define CFG_PCMCIA_IO_ADDR (0xEC000000)
284 #define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
286 /*-----------------------------------------------------------------------
287 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
288 *-----------------------------------------------------------------------
291 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
293 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
294 #undef CONFIG_IDE_LED /* LED for ide not supported */
295 #undef CONFIG_IDE_RESET /* reset for ide not supported */
297 #define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */
298 #define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
300 #define CFG_ATA_IDE0_OFFSET 0x0000
302 #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR
304 /* Offset for data I/O */
305 #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320)
307 /* Offset for normal register accesses */
308 #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
310 /* Offset for alternate registers */
311 #define CFG_ATA_ALT_OFFSET 0x0100
313 /*-----------------------------------------------------------------------
315 *-----------------------------------------------------------------------
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 0x60000000 /* FLASH bank #0 */
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
333 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
334 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
339 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
340 OR_SCY_3_CLK | OR_EHTR | OR_BI)
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_V )
346 #define CFG_OR1_REMAP CFG_OR0_REMAP
347 #define CFG_OR1_PRELIM CFG_OR0_PRELIM
348 #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
351 * BR2/3 and OR2/3 (SDRAM)
354 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
355 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
356 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
358 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
359 #define CFG_OR_TIMING_SDRAM 0x00000A00
361 #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
362 #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
364 #ifndef CONFIG_CAN_DRIVER
365 #define CFG_OR3_PRELIM CFG_OR2_PRELIM
366 #define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
367 #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
368 #define CFG_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
369 #define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
370 #define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA | OR_BI)
371 #define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \
372 BR_PS_8 | BR_MS_UPMB | BR_V )
373 #endif /* CONFIG_CAN_DRIVER */
376 * Memory Periodic Timer Prescaler
378 * The Divider for PTA (refresh timer) configuration is based on an
379 * example SDRAM configuration (64 MBit, one bank). The adjustment to
380 * the number of chip selects (NCS) and the actually needed refresh
381 * rate is done by setting MPTPR.
383 * PTA is calculated from
384 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
386 * gclk CPU clock (not bus clock!)
387 * Trefresh Refresh cycle * 4 (four word bursts used)
389 * 4096 Rows from SDRAM example configuration
390 * 1000 factor s -> ms
391 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
392 * 4 Number of refresh cycles per period
393 * 64 Refresh cycle in ms per number of rows
394 * --------------------------------------------
395 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
397 * 50 MHz => 50.000.000 / Divider = 98
398 * 66 Mhz => 66.000.000 / Divider = 129
399 * 80 Mhz => 80.000.000 / Divider = 156
402 #define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64))
403 #define CFG_MAMR_PTA 98
406 * For 16 MBit, refresh rates could be 31.3 us
407 * (= 64 ms / 2K = 125 / quad bursts).
408 * For a simpler initialization, 15.6 us is used instead.
410 * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
411 * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
413 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
414 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
416 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
417 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
418 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
421 * MAMR settings for SDRAM
425 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
426 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
427 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
429 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
430 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
431 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
435 * Internal Definitions
439 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
440 #define BOOTFLAG_WARM 0x02 /* Software reboot */
442 #endif /* __CONFIG_H */