2 * (C) Copyright 2000, 2001, 2002
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_RRVISION 1 /* ...on a RRvision board */
39 #define CONFIG_SYS_TEXT_BASE 0x40000000
41 #define CONFIG_8xx_GCLK_FREQ 64000000
43 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
44 #undef CONFIG_8xx_CONS_SMC2
45 #undef CONFIG_8xx_CONS_NONE
46 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
48 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
50 #define CONFIG_BOOTDELAY 3 /* autoboot after 5 seconds */
53 #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */
55 #define CONFIG_PREBOOT "setenv stdout serial"
57 #undef CONFIG_BOOTARGS
58 #define CONFIG_ETHADDR 00:50:C2:00:E0:70
59 #define CONFIG_OVERWRITE_ETHADDR_ONCE 1
60 #define CONFIG_IPADDR 10.0.0.5
61 #define CONFIG_SERVERIP 10.0.0.2
62 #define CONFIG_NETMASK 255.0.0.0
63 #define CONFIG_ROOTPATH "/opt/eldk/ppc_8xx"
64 #define CONFIG_BOOTCOMMAND "run flash_self"
66 #define CONFIG_EXTRA_ENV_SETTINGS \
68 "ramargs=setenv bootargs root=/dev/ram rw\0" \
69 "nfsargs=setenv bootargs root=/dev/nfs rw " \
70 "nfsroot=${serverip}:${rootpath}\0" \
71 "addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}" \
72 ":${gatewayip}:${netmask}:${hostname}:${netdev}:off\0" \
73 "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
74 "load=tftp 100000 /tftpboot/u-boot.bin\0" \
75 "update=protect off 1:0-8;era 1:0-8;" \
76 "cp.b 100000 40000000 ${filesize};" \
77 "setenv filesize;saveenv\0" \
78 "kernel_addr=40040000\0" \
79 "ramdisk_addr=40100000\0" \
80 "kernel_img=/tftpboot/uImage\0" \
81 "kernel_load=tftp 200000 ${kernel_img}\0" \
82 "net_nfs=run kernel_load nfsargs addip addtty;bootm\0" \
83 "flash_nfs=run nfsargs addip addtty;bootm ${kernel_addr}\0" \
84 "flash_self=run ramargs addip addtty;" \
85 "bootm ${kernel_addr} ${ramdisk_addr}\0"
88 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
89 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
91 #undef CONFIG_WATCHDOG /* watchdog disabled */
93 #undef CONFIG_STATUS_LED /* disturbs display */
95 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
100 #define CONFIG_BOOTP_SUBNETMASK
101 #define CONFIG_BOOTP_GATEWAY
102 #define CONFIG_BOOTP_HOSTNAME
103 #define CONFIG_BOOTP_BOOTPATH
104 #define CONFIG_BOOTP_BOOTFILESIZE
107 #define CONFIG_MAC_PARTITION
108 #define CONFIG_DOS_PARTITION
110 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
114 #define CONFIG_MPC8XX_LCD
116 #define CONFIG_VIDEO 1 /* To enable the video initialization */
119 #define CONFIG_VIDEO_LOGO 1 /* Show the logo */
120 #define CONFIG_VIDEO_ENCODER_AD7179 1 /* Enable this encoder */
121 #define CONFIG_VIDEO_ENCODER_AD7179_ADDR 0x2A /* ALSB to ground */
124 /* enable I2C and select the hardware/software driver */
125 #define CONFIG_SYS_I2C
126 #define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
127 #define CONFIG_SYS_I2C_SOFT_SPEED 50000
128 #define CONFIG_SYS_I2C_SOFT_SLAVE 0xFE
130 * Software (bit-bang) I2C driver configuration
132 #define PB_SCL 0x00000020 /* PB 26 */
133 #define PB_SDA 0x00000010 /* PB 27 */
135 #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
136 #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
137 #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
138 #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
139 #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
140 else immr->im_cpm.cp_pbdat &= ~PB_SDA
141 #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
142 else immr->im_cpm.cp_pbdat &= ~PB_SCL
143 #define I2C_DELAY udelay(1) /* 1/4 I2C clock duration */
147 * Command line configuration.
149 #include <config_cmd_default.h>
151 #define CONFIG_CMD_DHCP
152 #define CONFIG_CMD_I2C
153 #define CONFIG_CMD_IDE
154 #define CONFIG_CMD_DATE
156 #undef CONFIG_CMD_PCMCIA
157 #undef CONFIG_CMD_IDE
161 * Miscellaneous configurable options
163 #define CONFIG_SYS_LONGHELP /* undef to save memory */
164 #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
165 #if defined(CONFIG_CMD_KGDB)
166 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
168 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
170 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
171 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
172 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
174 #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
175 #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
177 #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
179 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
182 * Low Level Configuration Settings
183 * (address mappings, register initial values, etc.)
184 * You should know what you are doing if you make changes here.
186 /*-----------------------------------------------------------------------
187 * Internal Memory Mapped Register
189 #define CONFIG_SYS_IMMR 0xFFF00000
191 /*-----------------------------------------------------------------------
192 * Definitions for initial stack pointer and data area (in DPRAM)
194 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
195 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
196 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
197 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
199 /*-----------------------------------------------------------------------
200 * Start addresses for the final memory configuration
201 * (Set up by the startup code)
202 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
204 #define CONFIG_SYS_SDRAM_BASE 0x00000000
205 #define CONFIG_SYS_FLASH_BASE 0x40000000
206 #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
207 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
208 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
211 * For booting Linux, the board info and command line data
212 * have to be in the first 8 MB of memory, since this is
213 * the maximum mapped by the Linux kernel during initialization.
215 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
217 /*-----------------------------------------------------------------------
220 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
221 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
223 /* timeout values are in ticks = ms */
224 #define CONFIG_SYS_FLASH_ERASE_TOUT (120*CONFIG_SYS_HZ) /* Timeout for Flash Erase */
225 #define CONFIG_SYS_FLASH_WRITE_TOUT (1 * CONFIG_SYS_HZ) /* Timeout for Flash Write */
227 #define CONFIG_ENV_IS_IN_FLASH 1
228 #define CONFIG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
229 #define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
231 /* Address and size of Redundant Environment Sector */
232 #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET+CONFIG_ENV_SIZE)
233 #define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE)
235 #define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */
237 /*-----------------------------------------------------------------------
238 * Cache Configuration
240 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
241 #if defined(CONFIG_CMD_KGDB)
242 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
245 /*-----------------------------------------------------------------------
246 * SYPCR - System Protection Control 11-9
247 * SYPCR can only be written once after reset!
248 *-----------------------------------------------------------------------
249 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
251 #if defined(CONFIG_WATCHDOG)
252 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
253 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
255 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
258 /*-----------------------------------------------------------------------
259 * SIUMCR - SIU Module Configuration 11-6
260 *-----------------------------------------------------------------------
261 * PCMCIA config., multi-function pin tri-state
263 #ifndef CONFIG_CAN_DRIVER
264 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
265 #else /* we must activate GPL5 in the SIUMCR for CAN */
266 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
267 #endif /* CONFIG_CAN_DRIVER */
269 /*-----------------------------------------------------------------------
270 * TBSCR - Time Base Status and Control 11-26
271 *-----------------------------------------------------------------------
272 * Clear Reference Interrupt Status, Timebase freezing enabled
274 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
276 /*-----------------------------------------------------------------------
277 * RTCSC - Real-Time Clock Status and Control Register 11-27
278 *-----------------------------------------------------------------------
280 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
282 /*-----------------------------------------------------------------------
283 * PISCR - Periodic Interrupt Status and Control 11-31
284 *-----------------------------------------------------------------------
285 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
287 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF | PISCR_PTE)
289 /*-----------------------------------------------------------------------
290 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
291 *-----------------------------------------------------------------------
292 * Reset PLL lock status sticky bit, timer expired status bit and timer
293 * interrupt status bit
296 /* for 64 MHz, we use a 16 MHz clock * 4 */
297 #define CONFIG_SYS_PLPRCR ( (4-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
299 /*-----------------------------------------------------------------------
300 * SCCR - System Clock and reset Control Register 15-27
301 *-----------------------------------------------------------------------
302 * Set clock output, timebase and RTC source and divider,
303 * power management and some other internal clocks
305 #define SCCR_MASK SCCR_EBDF11
306 #define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_RTSEL | SCCR_RTDIV | \
307 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
308 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
311 /*-----------------------------------------------------------------------
313 *-----------------------------------------------------------------------
316 #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
317 #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
318 #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
319 #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
320 #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
321 #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
322 #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
323 #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
325 /*-----------------------------------------------------------------------
326 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
327 *-----------------------------------------------------------------------
330 #define CONFIG_IDE_PREINIT 1 /* Use preinit IDE hook */
331 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
333 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
334 #undef CONFIG_IDE_LED /* LED for ide not supported */
335 #undef CONFIG_IDE_RESET /* reset for ide not supported */
337 #define CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */
338 #define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
340 #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
342 #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
344 /* Offset for data I/O */
345 #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
347 /* Offset for normal register accesses */
348 #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
350 /* Offset for alternate registers */
351 #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
353 /*-----------------------------------------------------------------------
355 *-----------------------------------------------------------------------
358 /*#define CONFIG_SYS_DER 0x2002000F*/
359 #define CONFIG_SYS_DER 0
362 * Init Memory Controller:
367 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
369 /* used to re-map FLASH both when starting from SRAM or FLASH:
370 * restrict access enough to keep SRAM working (if any)
371 * but not too much to meddle with FLASH accesses
373 #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
374 #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
379 /* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
380 #define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
381 OR_SCY_3_CLK | OR_EHTR | OR_BI)
383 #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
384 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
385 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
388 * BR2/3 and OR2/3 (SDRAM)
391 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
392 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
393 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
395 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
396 #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000A00
398 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM )
399 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
401 #ifndef CONFIG_CAN_DRIVER
402 #define CONFIG_SYS_OR3_PRELIM CONFIG_SYS_OR2_PRELIM
403 #define CONFIG_SYS_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
404 #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
405 #define CONFIG_SYS_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
406 #define CONFIG_SYS_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
407 #define CONFIG_SYS_OR3_CAN (CONFIG_SYS_CAN_OR_AM | OR_G5LA | OR_BI)
408 #define CONFIG_SYS_BR3_CAN ((CONFIG_SYS_CAN_BASE & BR_BA_MSK) | \
409 BR_PS_8 | BR_MS_UPMB | BR_V )
410 #endif /* CONFIG_CAN_DRIVER */
413 * Memory Periodic Timer Prescaler
415 * The Divider for PTA (refresh timer) configuration is based on an
416 * example SDRAM configuration (64 MBit, one bank). The adjustment to
417 * the number of chip selects (NCS) and the actually needed refresh
418 * rate is done by setting MPTPR.
420 * PTA is calculated from
421 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
423 * gclk CPU clock (not bus clock!)
424 * Trefresh Refresh cycle * 4 (four word bursts used)
426 * 4096 Rows from SDRAM example configuration
427 * 1000 factor s -> ms
428 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
429 * 4 Number of refresh cycles per period
430 * 64 Refresh cycle in ms per number of rows
431 * --------------------------------------------
432 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
434 * 50 MHz => 50.000.000 / Divider = 98
435 * 66 Mhz => 66.000.000 / Divider = 129
436 * 80 Mhz => 80.000.000 / Divider = 156
438 #define CONFIG_SYS_MAMR_PTA 129
441 * For 16 MBit, refresh rates could be 31.3 us
442 * (= 64 ms / 2K = 125 / quad bursts).
443 * For a simpler initialization, 15.6 us is used instead.
445 * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
446 * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
448 #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
449 #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
451 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
452 #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
453 #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
456 * MAMR settings for SDRAM
460 #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
461 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
462 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
464 #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
465 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
466 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
469 #endif /* __CONFIG_H */