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_MPC823 1 /* This is a MPC823 CPU */
37 #define CONFIG_VIRTLAB2 1 /* ...on a virtlab2 module */
38 #define CONFIG_TQM8xxL 1
40 #ifdef CONFIG_LCD /* with LCD controller ? */
41 #define CONFIG_SPLASH_SCREEN /* ... with splashscreen support*/
44 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
45 #undef CONFIG_8xx_CONS_SMC2
46 #undef CONFIG_8xx_CONS_NONE
47 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
49 #define CONFIG_BOOTCOUNT_LIMIT
51 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
53 #define CONFIG_BOARD_TYPES 1 /* support board types */
55 #define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo"
57 #undef CONFIG_BOOTARGS
59 #define CONFIG_EXTRA_ENV_SETTINGS \
61 "nfsargs=setenv bootargs root=/dev/nfs rw " \
62 "nfsroot=${serverip}:${rootpath}\0" \
63 "ramargs=setenv bootargs root=/dev/ram rw\0" \
64 "addip=setenv bootargs ${bootargs} " \
65 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
66 ":${hostname}:${netdev}:off panic=1\0" \
67 "flash_nfs=run nfsargs addip;" \
68 "bootm ${kernel_addr}\0" \
69 "flash_self=run ramargs addip;" \
70 "bootm ${kernel_addr} ${ramdisk_addr}\0" \
71 "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \
72 "rootpath=/opt/eldk/ppc_8xx\0" \
73 "bootfile=/tftpboot/TQM823L/uImage\0" \
74 "kernel_addr=40040000\0" \
75 "ramdisk_addr=40100000\0" \
77 #define CONFIG_BOOTCOMMAND "run flash_self"
79 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
80 #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
82 #undef CONFIG_WATCHDOG /* watchdog disabled */
84 #if defined(CONFIG_LCD)
85 # undef CONFIG_STATUS_LED /* disturbs display */
87 # define CONFIG_STATUS_LED 1 /* Status LED enabled */
88 #endif /* CONFIG_LCD */
90 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
92 #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
94 #define CONFIG_MAC_PARTITION
95 #define CONFIG_DOS_PARTITION
97 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
99 #ifdef CONFIG_SPLASH_SCREEN
100 # define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
109 # define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
118 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
119 #include <cmd_confdefs.h>
122 * Miscellaneous configurable options
124 #define CFG_LONGHELP /* undef to save memory */
125 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
128 #define CFG_HUSH_PARSER 1 /* use "hush" command parser */
130 #ifdef CFG_HUSH_PARSER
131 #define CFG_PROMPT_HUSH_PS2 "> "
134 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
135 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
137 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
139 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
140 #define CFG_MAXARGS 16 /* max number of command args */
141 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
143 #define CFG_MEMTEST_START 0x0400000 /* memtest works on */
144 #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
146 #define CFG_LOAD_ADDR 0x100000 /* default load address */
148 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
150 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
153 * Low Level Configuration Settings
154 * (address mappings, register initial values, etc.)
155 * You should know what you are doing if you make changes here.
157 /*-----------------------------------------------------------------------
158 * Internal Memory Mapped Register
160 #define CFG_IMMR 0xFFF00000
162 /*-----------------------------------------------------------------------
163 * Definitions for initial stack pointer and data area (in DPRAM)
165 #define CFG_INIT_RAM_ADDR CFG_IMMR
166 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
167 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
168 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
169 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
171 /*-----------------------------------------------------------------------
172 * Start addresses for the final memory configuration
173 * (Set up by the startup code)
174 * Please note that CFG_SDRAM_BASE _must_ start at 0
176 #define CFG_SDRAM_BASE 0x00000000
177 #define CFG_FLASH_BASE 0x40000000
178 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
179 #define CFG_MONITOR_BASE CFG_FLASH_BASE
180 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
183 * For booting Linux, the board info and command line data
184 * have to be in the first 8 MB of memory, since this is
185 * the maximum mapped by the Linux kernel during initialization.
187 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
189 /*-----------------------------------------------------------------------
192 #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
193 #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
195 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
196 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
198 #define CFG_ENV_IS_IN_FLASH 1
199 #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
200 #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
202 /* Address and size of Redundant Environment Sector */
203 #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SIZE)
204 #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
206 /*-----------------------------------------------------------------------
207 * Hardware Information Block
209 #define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */
210 #define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */
211 #define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */
213 /*-----------------------------------------------------------------------
214 * Cache Configuration
216 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
217 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
218 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
221 /*-----------------------------------------------------------------------
222 * SYPCR - System Protection Control 11-9
223 * SYPCR can only be written once after reset!
224 *-----------------------------------------------------------------------
225 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
227 #if defined(CONFIG_WATCHDOG)
228 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
229 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
231 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
234 /*-----------------------------------------------------------------------
235 * SIUMCR - SIU Module Configuration 11-6
236 *-----------------------------------------------------------------------
237 * PCMCIA config., multi-function pin tri-state
239 #ifndef CONFIG_CAN_DRIVER
240 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
241 #else /* we must activate GPL5 in the SIUMCR for CAN */
242 #define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
243 #endif /* CONFIG_CAN_DRIVER */
245 /*-----------------------------------------------------------------------
246 * TBSCR - Time Base Status and Control 11-26
247 *-----------------------------------------------------------------------
248 * Clear Reference Interrupt Status, Timebase freezing enabled
250 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
252 /*-----------------------------------------------------------------------
253 * RTCSC - Real-Time Clock Status and Control Register 11-27
254 *-----------------------------------------------------------------------
256 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
258 /*-----------------------------------------------------------------------
259 * PISCR - Periodic Interrupt Status and Control 11-31
260 *-----------------------------------------------------------------------
261 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
263 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
265 /*-----------------------------------------------------------------------
266 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
267 *-----------------------------------------------------------------------
268 * Reset PLL lock status sticky bit, timer expired status bit and timer
269 * interrupt status bit
271 #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
273 /*-----------------------------------------------------------------------
274 * SCCR - System Clock and reset Control Register 15-27
275 *-----------------------------------------------------------------------
276 * Set clock output, timebase and RTC source and divider,
277 * power management and some other internal clocks
279 #define SCCR_MASK SCCR_EBDF11
280 #define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
281 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
284 /*-----------------------------------------------------------------------
286 *-----------------------------------------------------------------------
289 #define CFG_PCMCIA_MEM_ADDR (0xE0000000)
290 #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
291 #define CFG_PCMCIA_DMA_ADDR (0xE4000000)
292 #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
293 #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
294 #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
295 #define CFG_PCMCIA_IO_ADDR (0xEC000000)
296 #define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
298 /*-----------------------------------------------------------------------
299 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
300 *-----------------------------------------------------------------------
303 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
305 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
306 #undef CONFIG_IDE_LED /* LED for ide not supported */
307 #undef CONFIG_IDE_RESET /* reset for ide not supported */
309 #define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */
310 #define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
312 #define CFG_ATA_IDE0_OFFSET 0x0000
314 #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR
316 /* Offset for data I/O */
317 #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320)
319 /* Offset for normal register accesses */
320 #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
322 /* Offset for alternate registers */
323 #define CFG_ATA_ALT_OFFSET 0x0100
325 /*-----------------------------------------------------------------------
327 *-----------------------------------------------------------------------
333 * Init Memory Controller:
335 * BR0/1 and OR0/1 (FLASH)
338 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
339 #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */
341 /* used to re-map FLASH both when starting from SRAM or FLASH:
342 * restrict access enough to keep SRAM working (if any)
343 * but not too much to meddle with FLASH accesses
345 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
346 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
351 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
352 OR_SCY_3_CLK | OR_EHTR | OR_BI)
354 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
355 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
356 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
358 #define CFG_OR1_REMAP CFG_OR0_REMAP
359 #define CFG_OR1_PRELIM CFG_OR0_PRELIM
360 #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
363 * BR2/3 and OR2/3 (SDRAM)
366 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
367 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
368 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
370 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
371 #define CFG_OR_TIMING_SDRAM 0x00000A00
373 #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
374 #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
376 #ifndef CONFIG_CAN_DRIVER
377 #define CFG_OR3_PRELIM CFG_OR2_PRELIM
378 #define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
379 #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
380 #define CFG_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
381 #define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
382 #define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA | OR_BI)
383 #define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \
384 BR_PS_8 | BR_MS_UPMB | BR_V )
385 #endif /* CONFIG_CAN_DRIVER */
388 * Memory Periodic Timer Prescaler
390 * The Divider for PTA (refresh timer) configuration is based on an
391 * example SDRAM configuration (64 MBit, one bank). The adjustment to
392 * the number of chip selects (NCS) and the actually needed refresh
393 * rate is done by setting MPTPR.
395 * PTA is calculated from
396 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
398 * gclk CPU clock (not bus clock!)
399 * Trefresh Refresh cycle * 4 (four word bursts used)
401 * 4096 Rows from SDRAM example configuration
402 * 1000 factor s -> ms
403 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
404 * 4 Number of refresh cycles per period
405 * 64 Refresh cycle in ms per number of rows
406 * --------------------------------------------
407 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
409 * 50 MHz => 50.000.000 / Divider = 98
410 * 66 Mhz => 66.000.000 / Divider = 129
411 * 80 Mhz => 80.000.000 / Divider = 156
414 #define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64))
415 #define CFG_MAMR_PTA 98
418 * For 16 MBit, refresh rates could be 31.3 us
419 * (= 64 ms / 2K = 125 / quad bursts).
420 * For a simpler initialization, 15.6 us is used instead.
422 * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
423 * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
425 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
426 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
428 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
429 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
430 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
433 * MAMR settings for SDRAM
437 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
438 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
439 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
441 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
442 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
443 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
447 * Internal Definitions
451 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
452 #define BOOTFLAG_WARM 0x02 /* Software reboot */
454 /* Map peripheral control registers on CS4 */
455 #define CFG_PERIPHERAL_BASE 0xA0000000
456 #define CFG_PERIPHERAL_OR_AM 0xFFFF8000 /* 32 kB address mask */
457 #define CFG_OR4_PRELIM (CFG_PERIPHERAL_OR_AM | OR_TRLX | OR_CSNT_SAM | \
459 #define CFG_BR4_PRELIM ((CFG_PERIPHERAL_BASE & BR_BA_MSK) | BR_PS_8 | BR_V)
460 #define PCMCIA_CTRL (CFG_PERIPHERAL_BASE + 0xB00)
461 #endif /* __CONFIG_H */