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;echo To mount root over NFS use \"run bootnet\";echo To mount root from FLASH use \"run bootflash\";echo"
50 #define CONFIG_BOOTARGS "root=/dev/mtdblock2 rw"
51 #define CONFIG_BOOTCOMMAND \
53 "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
54 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
57 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
58 #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
60 #define CONFIG_WATCHDOG /* watchdog disabled/enabled */
62 #undef CONFIG_STATUS_LED /* Status LED disabled/enabled */
64 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
70 #define CONFIG_BOOTP_SUBNETMASK
71 #define CONFIG_BOOTP_GATEWAY
72 #define CONFIG_BOOTP_HOSTNAME
73 #define CONFIG_BOOTP_BOOTPATH
74 #define CONFIG_BOOTP_VENDOREX
76 #undef CONFIG_MAC_PARTITION
77 #undef CONFIG_DOS_PARTITION
79 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
83 * Command line configuration.
85 #define CONFIG_CMD_LOADS
86 #define CONFIG_CMD_LOADB
87 #define CONFIG_CMD_IMI
88 #define CONFIG_CMD_FLASH
89 #define CONFIG_CMD_MEMORY
90 #define CONFIG_CMD_NET
91 #define CONFIG_CMD_DHCP
92 #define CONFIG_CMD_ENV
93 #define CONFIG_CMD_BOOTD
94 #define CONFIG_CMD_RUN
98 * Miscellaneous configurable options
100 #undef CFG_LONGHELP /* undef to save memory */
101 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
103 #undef CFG_HUSH_PARSER /* Hush parse for U-Boot ?? */
104 #ifdef CFG_HUSH_PARSER
105 #define CFG_PROMPT_HUSH_PS2 "> "
108 #if defined(CONFIG_CMD_KGDB)
109 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
111 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
113 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
114 #define CFG_MAXARGS 16 /* max number of command args */
115 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
117 #define CFG_MEMTEST_START 0x0400000 /* memtest works on */
118 #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
120 #define CFG_LOAD_ADDR 0x100000 /* default load address */
122 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
124 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
127 * Low Level Configuration Settings
128 * (address mappings, register initial values, etc.)
129 * You should know what you are doing if you make changes here.
131 /*-----------------------------------------------------------------------
132 * Internal Memory Mapped Register
134 #define CFG_IMMR 0xFFF00000
136 /*-----------------------------------------------------------------------
137 * Definitions for initial stack pointer and data area (in DPRAM)
139 #define CFG_INIT_RAM_ADDR CFG_IMMR
140 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
141 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
142 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
143 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
145 /*-----------------------------------------------------------------------
146 * Start addresses for the final memory configuration
147 * (Set up by the startup code)
148 * Please note that CFG_SDRAM_BASE _must_ start at 0
150 #define CFG_SDRAM_BASE 0x00000000
151 #define CFG_FLASH_BASE 0x40000000
153 #define CFG_MONITOR_LEN (128 << 10) /* Reserve 192 kB for Monitor */
155 #define CFG_MONITOR_BASE CFG_FLASH_BASE
156 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
159 * For booting Linux, the board info and command line data
160 * have to be in the first 8 MB of memory, since this is
161 * the maximum mapped by the Linux kernel during initialization.
163 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
165 /*-----------------------------------------------------------------------
168 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
169 #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip (for AMD320DB chip) */
171 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
172 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
174 #define CFG_ENV_IS_IN_FLASH 1
176 /* 4MB flash - use bottom sectors of a bottom boot sector flash (16 bit access) */
177 #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector (bottom boot sector) */
178 #define CFG_ENV_SIZE 0x2000 /* Used Size of Environment Sector 8k */
180 /*-----------------------------------------------------------------------
181 * Cache Configuration
183 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
184 #if defined(CONFIG_CMD_KGDB)
185 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
188 /*-----------------------------------------------------------------------
189 * SYPCR - System Protection Control 11-9
190 * SYPCR can only be written once after reset!
191 *-----------------------------------------------------------------------
192 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
194 #if defined(CONFIG_WATCHDOG)
195 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
196 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
198 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
201 /*-----------------------------------------------------------------------
202 * SIUMCR - SIU Module Configuration 11-6
203 *-----------------------------------------------------------------------
204 * PCMCIA config., multi-function pin tri-state
206 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
208 /*-----------------------------------------------------------------------
209 * TBSCR - Time Base Status and Control 11-26
210 *-----------------------------------------------------------------------
211 * Clear Reference Interrupt Status, Timebase freezing enabled
213 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
215 /*-----------------------------------------------------------------------
216 * RTCSC - Real-Time Clock Status and Control Register 11-27
217 *-----------------------------------------------------------------------
219 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
221 /*-----------------------------------------------------------------------
222 * PISCR - Periodic Interrupt Status and Control 11-31
223 *-----------------------------------------------------------------------
224 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
226 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
228 /*-----------------------------------------------------------------------
229 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
230 *-----------------------------------------------------------------------
231 * Reset PLL lock status sticky bit, timer expired status bit and timer
232 * interrupt status bit
235 #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
237 /*-----------------------------------------------------------------------
238 * SCCR - System Clock and reset Control Register 15-27
239 *-----------------------------------------------------------------------
240 * Set clock output, timebase and RTC source and divider,
241 * power management and some other internal clocks
243 #define SCCR_MASK SCCR_EBDF11
244 #define CFG_SCCR (SCCR_TBS | \
245 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
246 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
249 /*-----------------------------------------------------------------------
251 *-----------------------------------------------------------------------
254 #define CFG_PCMCIA_MEM_ADDR (0xE0000000)
255 #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
256 #define CFG_PCMCIA_DMA_ADDR (0xE4000000)
257 #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
258 #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
259 #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
260 #define CFG_PCMCIA_IO_ADDR (0xEC000000)
261 #define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
263 /*-----------------------------------------------------------------------
264 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
265 *-----------------------------------------------------------------------
268 #define CONFIG_IDE_PCCARD 0 /* **DON'T** Use IDE with PC Card Adapter */
270 #undef CONFIG_IDE_PCMCIA /* Direct IDE not supported */
271 #undef CONFIG_IDE_LED /* LED for ide not supported */
272 #undef CONFIG_IDE_RESET /* reset for ide not supported */
274 #define CFG_IDE_MAXBUS 0 /* max. no. of IDE buses */
275 #define CFG_IDE_MAXDEVICE 0 /* max. no. of drives per IDE bus */
278 #define CFG_ATA_IDE0_OFFSET 0x0000
280 #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR
282 /* Offset for data I/O */
283 #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320)
285 /* Offset for normal register accesses */
286 #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
288 /* Offset for alternate registers */
289 #define CFG_ATA_ALT_OFFSET 0x0100
291 /*-----------------------------------------------------------------------
293 *-----------------------------------------------------------------------
296 /*#define CFG_DER 0x2002000F*/
300 * Init Memory Controller:
302 * BR0/1 and OR0/1 (FLASH)
305 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
306 #undef FLASH_BASE1_PRELIM
308 /* used to re-map FLASH both when starting from SRAM or FLASH:
309 * restrict access enough to keep SRAM working (if any)
310 * but not too much to meddle with FLASH accesses
312 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
313 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
319 /* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
320 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
321 OR_SCY_2_CLK | OR_EHTR | OR_BI)
322 /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
324 #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
325 OR_SCY_5_CLK | OR_EHTR)
328 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
329 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
330 #ifdef CONFIG_MVS_16BIT_FLASH
331 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
333 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_32 | BR_V )
337 #undef CFG_OR1_PRELIM
338 #undef CFG_BR1_PRELIM
340 * BR2/3 and OR2/3 (SDRAM)
343 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
344 #undef SDRAM_BASE3_PRELIM
345 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
347 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
348 #define CFG_OR_TIMING_SDRAM 0x00000A00
350 #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
351 #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
353 #undef CFG_OR3_PRELIM
354 #undef CFG_BR3_PRELIM
358 * Memory Periodic Timer Prescaler
360 * The Divider for PTA (refresh timer) configuration is based on an
361 * example SDRAM configuration (64 MBit, one bank). The adjustment to
362 * the number of chip selects (NCS) and the actually needed refresh
363 * rate is done by setting MPTPR.
365 * PTA is calculated from
366 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
368 * gclk CPU clock (not bus clock!)
369 * Trefresh Refresh cycle * 4 (four word bursts used)
371 * 4096 Rows from SDRAM example configuration
372 * 1000 factor s -> ms
373 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
374 * 4 Number of refresh cycles per period
375 * 64 Refresh cycle in ms per number of rows
376 * --------------------------------------------
377 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
379 * 50 MHz => 50.000.000 / Divider = 98
380 * 66 Mhz => 66.000.000 / Divider = 129
381 * 80 Mhz => 80.000.000 / Divider = 156
383 #define CFG_MAMR_PTA 98
385 /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
386 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
387 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
389 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
390 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
391 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
394 * MAMR settings for SDRAM
398 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
399 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
400 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
402 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
403 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A7 | \
404 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
408 * Internal Definitions
412 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
413 #define BOOTFLAG_WARM 0x02 /* Software reboot */
415 #endif /* __CONFIG_H */