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 CONFIG_SYS_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_SAVEENV
96 #define CONFIG_CMD_BOOTD
97 #define CONFIG_CMD_RUN
101 * Miscellaneous configurable options
103 #undef CONFIG_SYS_LONGHELP /* undef to save memory */
104 #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
106 #undef CONFIG_SYS_HUSH_PARSER /* Hush parse for U-Boot ?? */
108 #if defined(CONFIG_CMD_KGDB)
109 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
111 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
113 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
114 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
115 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
117 #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
118 #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
120 #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
122 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
125 * Low Level Configuration Settings
126 * (address mappings, register initial values, etc.)
127 * You should know what you are doing if you make changes here.
129 /*-----------------------------------------------------------------------
130 * Internal Memory Mapped Register
132 #define CONFIG_SYS_IMMR 0xFFF00000
134 /*-----------------------------------------------------------------------
135 * Definitions for initial stack pointer and data area (in DPRAM)
137 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
138 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
139 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
140 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
142 /*-----------------------------------------------------------------------
143 * Start addresses for the final memory configuration
144 * (Set up by the startup code)
145 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
147 #define CONFIG_SYS_SDRAM_BASE 0x00000000
148 #define CONFIG_SYS_FLASH_BASE 0x40000000
150 #define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 192 kB for Monitor */
152 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
153 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
156 * For booting Linux, the board info and command line data
157 * have to be in the first 8 MB of memory, since this is
158 * the maximum mapped by the Linux kernel during initialization.
160 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
162 /*-----------------------------------------------------------------------
165 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
166 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip (for AMD320DB chip) */
168 #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
169 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
171 #define CONFIG_ENV_IS_IN_FLASH 1
173 /* 4MB flash - use bottom sectors of a bottom boot sector flash (16 bit access) */
174 #define CONFIG_ENV_OFFSET 0x8000 /* Offset of Environment Sector (bottom boot sector) */
175 #define CONFIG_ENV_SIZE 0x2000 /* Used Size of Environment Sector 8k */
177 /*-----------------------------------------------------------------------
178 * Cache Configuration
180 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
181 #if defined(CONFIG_CMD_KGDB)
182 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
185 /*-----------------------------------------------------------------------
186 * SYPCR - System Protection Control 11-9
187 * SYPCR can only be written once after reset!
188 *-----------------------------------------------------------------------
189 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
191 #if defined(CONFIG_WATCHDOG)
192 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
193 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
195 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
198 /*-----------------------------------------------------------------------
199 * SIUMCR - SIU Module Configuration 11-6
200 *-----------------------------------------------------------------------
201 * PCMCIA config., multi-function pin tri-state
203 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
205 /*-----------------------------------------------------------------------
206 * TBSCR - Time Base Status and Control 11-26
207 *-----------------------------------------------------------------------
208 * Clear Reference Interrupt Status, Timebase freezing enabled
210 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
212 /*-----------------------------------------------------------------------
213 * RTCSC - Real-Time Clock Status and Control Register 11-27
214 *-----------------------------------------------------------------------
216 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
218 /*-----------------------------------------------------------------------
219 * PISCR - Periodic Interrupt Status and Control 11-31
220 *-----------------------------------------------------------------------
221 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
223 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
225 /*-----------------------------------------------------------------------
226 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
227 *-----------------------------------------------------------------------
228 * Reset PLL lock status sticky bit, timer expired status bit and timer
229 * interrupt status bit
232 #define CONFIG_SYS_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
234 /*-----------------------------------------------------------------------
235 * SCCR - System Clock and reset Control Register 15-27
236 *-----------------------------------------------------------------------
237 * Set clock output, timebase and RTC source and divider,
238 * power management and some other internal clocks
240 #define SCCR_MASK SCCR_EBDF11
241 #define CONFIG_SYS_SCCR (SCCR_TBS | \
242 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
243 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
246 /*-----------------------------------------------------------------------
248 *-----------------------------------------------------------------------
251 #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
252 #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
253 #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
254 #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
255 #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
256 #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
257 #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
258 #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
260 /*-----------------------------------------------------------------------
261 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
262 *-----------------------------------------------------------------------
265 #define CONFIG_IDE_PCCARD 0 /* **DON'T** Use IDE with PC Card Adapter */
267 #undef CONFIG_IDE_PCMCIA /* Direct IDE not supported */
268 #undef CONFIG_IDE_LED /* LED for ide not supported */
269 #undef CONFIG_IDE_RESET /* reset for ide not supported */
271 #define CONFIG_SYS_IDE_MAXBUS 0 /* max. no. of IDE buses */
272 #define CONFIG_SYS_IDE_MAXDEVICE 0 /* max. no. of drives per IDE bus */
275 #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
277 #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
279 /* Offset for data I/O */
280 #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
282 /* Offset for normal register accesses */
283 #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
285 /* Offset for alternate registers */
286 #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
288 /*-----------------------------------------------------------------------
290 *-----------------------------------------------------------------------
293 /*#define CONFIG_SYS_DER 0x2002000F*/
294 #define CONFIG_SYS_DER 0
297 * Init Memory Controller:
299 * BR0/1 and OR0/1 (FLASH)
302 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
303 #undef FLASH_BASE1_PRELIM
305 /* used to re-map FLASH both when starting from SRAM or FLASH:
306 * restrict access enough to keep SRAM working (if any)
307 * but not too much to meddle with FLASH accesses
309 #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
310 #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
316 /* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
317 #define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
318 OR_SCY_2_CLK | OR_EHTR | OR_BI)
319 /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
321 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
322 OR_SCY_5_CLK | OR_EHTR)
325 #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
326 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
327 #ifdef CONFIG_MVS_16BIT_FLASH
328 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
330 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_32 | BR_V )
333 #undef CONFIG_SYS_OR1_REMAP
334 #undef CONFIG_SYS_OR1_PRELIM
335 #undef CONFIG_SYS_BR1_PRELIM
337 * BR2/3 and OR2/3 (SDRAM)
340 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
341 #undef SDRAM_BASE3_PRELIM
342 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
344 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
345 #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000A00
347 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM )
348 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
350 #undef CONFIG_SYS_OR3_PRELIM
351 #undef CONFIG_SYS_BR3_PRELIM
355 * Memory Periodic Timer Prescaler
357 * The Divider for PTA (refresh timer) configuration is based on an
358 * example SDRAM configuration (64 MBit, one bank). The adjustment to
359 * the number of chip selects (NCS) and the actually needed refresh
360 * rate is done by setting MPTPR.
362 * PTA is calculated from
363 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
365 * gclk CPU clock (not bus clock!)
366 * Trefresh Refresh cycle * 4 (four word bursts used)
368 * 4096 Rows from SDRAM example configuration
369 * 1000 factor s -> ms
370 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
371 * 4 Number of refresh cycles per period
372 * 64 Refresh cycle in ms per number of rows
373 * --------------------------------------------
374 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
376 * 50 MHz => 50.000.000 / Divider = 98
377 * 66 Mhz => 66.000.000 / Divider = 129
378 * 80 Mhz => 80.000.000 / Divider = 156
380 #define CONFIG_SYS_MAMR_PTA 98
382 /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
383 #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
384 #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
386 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
387 #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
388 #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
391 * MAMR settings for SDRAM
395 #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
396 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
397 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
399 #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
400 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A7 | \
401 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
403 #endif /* __CONFIG_H */