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_MVS 1 /* ...on a MVsensor module */
38 #define CONFIG_MVS_16BIT_FLASH /* ...with 16-bit flash access */
39 #define CONFIG_8xx_GCLK_FREQ 50000000/* ... and a 50 MHz CPU */
41 #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */
43 #undef CONFIG_8xx_CONS_SMC1 /* Console is *NOT* on SMC1 */
44 #define CONFIG_8xx_CONS_SMC2 1 /* Console is on SMC2 */
45 #undef CONFIG_8xx_CONS_NONE
46 #define CONFIG_BAUDRATE 115200 /* console baudrate */
47 #define CONFIG_BOOTDELAY 5 /* autoboot after this many seconds */
49 #define CONFIG_PREBOOT "echo;" \
50 "echo To mount root over NFS use \"run bootnet\";" \
51 "echo To mount root from FLASH use \"run bootflash\";" \
53 #define CONFIG_BOOTARGS "root=/dev/mtdblock2 rw"
54 #define CONFIG_BOOTCOMMAND \
56 "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
57 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
60 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
61 #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
63 #define CONFIG_WATCHDOG /* watchdog disabled/enabled */
65 #undef CONFIG_STATUS_LED /* Status LED disabled/enabled */
67 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
73 #define CONFIG_BOOTP_SUBNETMASK
74 #define CONFIG_BOOTP_GATEWAY
75 #define CONFIG_BOOTP_HOSTNAME
76 #define CONFIG_BOOTP_BOOTPATH
77 #define CONFIG_BOOTP_VENDOREX
79 #undef CONFIG_MAC_PARTITION
80 #undef CONFIG_DOS_PARTITION
82 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
86 * Command line configuration.
88 #define CONFIG_CMD_LOADS
89 #define CONFIG_CMD_LOADB
90 #define CONFIG_CMD_IMI
91 #define CONFIG_CMD_FLASH
92 #define CONFIG_CMD_MEMORY
93 #define CONFIG_CMD_NET
94 #define CONFIG_CMD_DHCP
95 #define CONFIG_CMD_ENV
96 #define CONFIG_CMD_BOOTD
97 #define CONFIG_CMD_RUN
101 * Miscellaneous configurable options
103 #undef CFG_LONGHELP /* undef to save memory */
104 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
106 #undef CFG_HUSH_PARSER /* Hush parse for U-Boot ?? */
107 #ifdef CFG_HUSH_PARSER
108 #define CFG_PROMPT_HUSH_PS2 "> "
111 #if defined(CONFIG_CMD_KGDB)
112 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
114 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
116 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
117 #define CFG_MAXARGS 16 /* max number of command args */
118 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
120 #define CFG_MEMTEST_START 0x0400000 /* memtest works on */
121 #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
123 #define CFG_LOAD_ADDR 0x100000 /* default load address */
125 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
127 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
130 * Low Level Configuration Settings
131 * (address mappings, register initial values, etc.)
132 * You should know what you are doing if you make changes here.
134 /*-----------------------------------------------------------------------
135 * Internal Memory Mapped Register
137 #define CFG_IMMR 0xFFF00000
139 /*-----------------------------------------------------------------------
140 * Definitions for initial stack pointer and data area (in DPRAM)
142 #define CFG_INIT_RAM_ADDR CFG_IMMR
143 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
144 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
145 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
146 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
148 /*-----------------------------------------------------------------------
149 * Start addresses for the final memory configuration
150 * (Set up by the startup code)
151 * Please note that CFG_SDRAM_BASE _must_ start at 0
153 #define CFG_SDRAM_BASE 0x00000000
154 #define CFG_FLASH_BASE 0x40000000
156 #define CFG_MONITOR_LEN (128 << 10) /* Reserve 192 kB for Monitor */
158 #define CFG_MONITOR_BASE CFG_FLASH_BASE
159 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
162 * For booting Linux, the board info and command line data
163 * have to be in the first 8 MB of memory, since this is
164 * the maximum mapped by the Linux kernel during initialization.
166 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
168 /*-----------------------------------------------------------------------
171 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
172 #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip (for AMD320DB chip) */
174 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
175 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
177 #define CFG_ENV_IS_IN_FLASH 1
179 /* 4MB flash - use bottom sectors of a bottom boot sector flash (16 bit access) */
180 #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector (bottom boot sector) */
181 #define CFG_ENV_SIZE 0x2000 /* Used Size of Environment Sector 8k */
183 /*-----------------------------------------------------------------------
184 * Cache Configuration
186 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
187 #if defined(CONFIG_CMD_KGDB)
188 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
191 /*-----------------------------------------------------------------------
192 * SYPCR - System Protection Control 11-9
193 * SYPCR can only be written once after reset!
194 *-----------------------------------------------------------------------
195 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
197 #if defined(CONFIG_WATCHDOG)
198 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
199 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
201 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
204 /*-----------------------------------------------------------------------
205 * SIUMCR - SIU Module Configuration 11-6
206 *-----------------------------------------------------------------------
207 * PCMCIA config., multi-function pin tri-state
209 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
211 /*-----------------------------------------------------------------------
212 * TBSCR - Time Base Status and Control 11-26
213 *-----------------------------------------------------------------------
214 * Clear Reference Interrupt Status, Timebase freezing enabled
216 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
218 /*-----------------------------------------------------------------------
219 * RTCSC - Real-Time Clock Status and Control Register 11-27
220 *-----------------------------------------------------------------------
222 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
224 /*-----------------------------------------------------------------------
225 * PISCR - Periodic Interrupt Status and Control 11-31
226 *-----------------------------------------------------------------------
227 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
229 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
231 /*-----------------------------------------------------------------------
232 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
233 *-----------------------------------------------------------------------
234 * Reset PLL lock status sticky bit, timer expired status bit and timer
235 * interrupt status bit
238 #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
240 /*-----------------------------------------------------------------------
241 * SCCR - System Clock and reset Control Register 15-27
242 *-----------------------------------------------------------------------
243 * Set clock output, timebase and RTC source and divider,
244 * power management and some other internal clocks
246 #define SCCR_MASK SCCR_EBDF11
247 #define CFG_SCCR (SCCR_TBS | \
248 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
249 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
252 /*-----------------------------------------------------------------------
254 *-----------------------------------------------------------------------
257 #define CFG_PCMCIA_MEM_ADDR (0xE0000000)
258 #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
259 #define CFG_PCMCIA_DMA_ADDR (0xE4000000)
260 #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
261 #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
262 #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
263 #define CFG_PCMCIA_IO_ADDR (0xEC000000)
264 #define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
266 /*-----------------------------------------------------------------------
267 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
268 *-----------------------------------------------------------------------
271 #define CONFIG_IDE_PCCARD 0 /* **DON'T** Use IDE with PC Card Adapter */
273 #undef CONFIG_IDE_PCMCIA /* Direct IDE not supported */
274 #undef CONFIG_IDE_LED /* LED for ide not supported */
275 #undef CONFIG_IDE_RESET /* reset for ide not supported */
277 #define CFG_IDE_MAXBUS 0 /* max. no. of IDE buses */
278 #define CFG_IDE_MAXDEVICE 0 /* max. no. of drives per IDE bus */
281 #define CFG_ATA_IDE0_OFFSET 0x0000
283 #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR
285 /* Offset for data I/O */
286 #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320)
288 /* Offset for normal register accesses */
289 #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
291 /* Offset for alternate registers */
292 #define CFG_ATA_ALT_OFFSET 0x0100
294 /*-----------------------------------------------------------------------
296 *-----------------------------------------------------------------------
299 /*#define CFG_DER 0x2002000F*/
303 * Init Memory Controller:
305 * BR0/1 and OR0/1 (FLASH)
308 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
309 #undef FLASH_BASE1_PRELIM
311 /* used to re-map FLASH both when starting from SRAM or FLASH:
312 * restrict access enough to keep SRAM working (if any)
313 * but not too much to meddle with FLASH accesses
315 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
316 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
322 /* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
323 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
324 OR_SCY_2_CLK | OR_EHTR | OR_BI)
325 /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
327 #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
328 OR_SCY_5_CLK | OR_EHTR)
331 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
332 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
333 #ifdef CONFIG_MVS_16BIT_FLASH
334 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
336 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_32 | BR_V )
340 #undef CFG_OR1_PRELIM
341 #undef CFG_BR1_PRELIM
343 * BR2/3 and OR2/3 (SDRAM)
346 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
347 #undef SDRAM_BASE3_PRELIM
348 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
350 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
351 #define CFG_OR_TIMING_SDRAM 0x00000A00
353 #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
354 #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
356 #undef CFG_OR3_PRELIM
357 #undef CFG_BR3_PRELIM
361 * Memory Periodic Timer Prescaler
363 * The Divider for PTA (refresh timer) configuration is based on an
364 * example SDRAM configuration (64 MBit, one bank). The adjustment to
365 * the number of chip selects (NCS) and the actually needed refresh
366 * rate is done by setting MPTPR.
368 * PTA is calculated from
369 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
371 * gclk CPU clock (not bus clock!)
372 * Trefresh Refresh cycle * 4 (four word bursts used)
374 * 4096 Rows from SDRAM example configuration
375 * 1000 factor s -> ms
376 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
377 * 4 Number of refresh cycles per period
378 * 64 Refresh cycle in ms per number of rows
379 * --------------------------------------------
380 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
382 * 50 MHz => 50.000.000 / Divider = 98
383 * 66 Mhz => 66.000.000 / Divider = 129
384 * 80 Mhz => 80.000.000 / Divider = 156
386 #define CFG_MAMR_PTA 98
388 /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
389 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
390 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
392 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
393 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
394 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
397 * MAMR settings for SDRAM
401 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
402 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
403 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
405 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
406 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A7 | \
407 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
411 * Internal Definitions
415 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
416 #define BOOTFLAG_WARM 0x02 /* Software reboot */
418 #endif /* __CONFIG_H */