2 * (C) Copyright 2000, 2001, 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
9 * board/config.h - configuration options, board specific
16 * High Level Configuration Options
20 #define CONFIG_MPC823 1 /* This is a MPC823 CPU */
21 #define CONFIG_RRVISION 1 /* ...on a RRvision board */
23 #define CONFIG_SYS_TEXT_BASE 0x40000000
25 #define CONFIG_8xx_GCLK_FREQ 64000000
27 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
28 #undef CONFIG_8xx_CONS_SMC2
29 #undef CONFIG_8xx_CONS_NONE
30 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
32 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
34 #define CONFIG_BOOTDELAY 3 /* autoboot after 5 seconds */
37 #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */
39 #define CONFIG_PREBOOT "setenv stdout serial"
41 #undef CONFIG_BOOTARGS
42 #define CONFIG_ETHADDR 00:50:C2:00:E0:70
43 #define CONFIG_OVERWRITE_ETHADDR_ONCE 1
44 #define CONFIG_IPADDR 10.0.0.5
45 #define CONFIG_SERVERIP 10.0.0.2
46 #define CONFIG_NETMASK 255.0.0.0
47 #define CONFIG_ROOTPATH "/opt/eldk/ppc_8xx"
48 #define CONFIG_BOOTCOMMAND "run flash_self"
50 #define CONFIG_EXTRA_ENV_SETTINGS \
52 "ramargs=setenv bootargs root=/dev/ram rw\0" \
53 "nfsargs=setenv bootargs root=/dev/nfs rw " \
54 "nfsroot=${serverip}:${rootpath}\0" \
55 "addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}" \
56 ":${gatewayip}:${netmask}:${hostname}:${netdev}:off\0" \
57 "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
58 "load=tftp 100000 /tftpboot/u-boot.bin\0" \
59 "update=protect off 1:0-8;era 1:0-8;" \
60 "cp.b 100000 40000000 ${filesize};" \
61 "setenv filesize;saveenv\0" \
62 "kernel_addr=40040000\0" \
63 "ramdisk_addr=40100000\0" \
64 "kernel_img=/tftpboot/uImage\0" \
65 "kernel_load=tftp 200000 ${kernel_img}\0" \
66 "net_nfs=run kernel_load nfsargs addip addtty;bootm\0" \
67 "flash_nfs=run nfsargs addip addtty;bootm ${kernel_addr}\0" \
68 "flash_self=run ramargs addip addtty;" \
69 "bootm ${kernel_addr} ${ramdisk_addr}\0"
72 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
73 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
75 #undef CONFIG_WATCHDOG /* watchdog disabled */
77 #undef CONFIG_STATUS_LED /* disturbs display */
79 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
84 #define CONFIG_BOOTP_SUBNETMASK
85 #define CONFIG_BOOTP_GATEWAY
86 #define CONFIG_BOOTP_HOSTNAME
87 #define CONFIG_BOOTP_BOOTPATH
88 #define CONFIG_BOOTP_BOOTFILESIZE
91 #define CONFIG_MAC_PARTITION
92 #define CONFIG_DOS_PARTITION
94 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
98 #define CONFIG_MPC8XX_LCD
100 #define CONFIG_VIDEO 1 /* To enable the video initialization */
103 #define CONFIG_VIDEO_LOGO 1 /* Show the logo */
104 #define CONFIG_VIDEO_ENCODER_AD7179 1 /* Enable this encoder */
105 #define CONFIG_VIDEO_ENCODER_AD7179_ADDR 0x2A /* ALSB to ground */
108 /* enable I2C and select the hardware/software driver */
109 #define CONFIG_SYS_I2C
110 #define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
111 #define CONFIG_SYS_I2C_SOFT_SPEED 50000
112 #define CONFIG_SYS_I2C_SOFT_SLAVE 0xFE
114 * Software (bit-bang) I2C driver configuration
116 #define PB_SCL 0x00000020 /* PB 26 */
117 #define PB_SDA 0x00000010 /* PB 27 */
119 #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
120 #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
121 #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
122 #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
123 #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
124 else immr->im_cpm.cp_pbdat &= ~PB_SDA
125 #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
126 else immr->im_cpm.cp_pbdat &= ~PB_SCL
127 #define I2C_DELAY udelay(1) /* 1/4 I2C clock duration */
131 * Command line configuration.
133 #include <config_cmd_default.h>
135 #define CONFIG_CMD_DHCP
136 #define CONFIG_CMD_I2C
137 #define CONFIG_CMD_IDE
138 #define CONFIG_CMD_DATE
140 #undef CONFIG_CMD_PCMCIA
141 #undef CONFIG_CMD_IDE
145 * Miscellaneous configurable options
147 #define CONFIG_SYS_LONGHELP /* undef to save memory */
148 #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
149 #if defined(CONFIG_CMD_KGDB)
150 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
152 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
154 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
155 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
156 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
158 #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
159 #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
161 #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
163 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
166 * Low Level Configuration Settings
167 * (address mappings, register initial values, etc.)
168 * You should know what you are doing if you make changes here.
170 /*-----------------------------------------------------------------------
171 * Internal Memory Mapped Register
173 #define CONFIG_SYS_IMMR 0xFFF00000
175 /*-----------------------------------------------------------------------
176 * Definitions for initial stack pointer and data area (in DPRAM)
178 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
179 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
180 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
181 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
183 /*-----------------------------------------------------------------------
184 * Start addresses for the final memory configuration
185 * (Set up by the startup code)
186 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
188 #define CONFIG_SYS_SDRAM_BASE 0x00000000
189 #define CONFIG_SYS_FLASH_BASE 0x40000000
190 #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
191 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
192 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
195 * For booting Linux, the board info and command line data
196 * have to be in the first 8 MB of memory, since this is
197 * the maximum mapped by the Linux kernel during initialization.
199 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
201 /*-----------------------------------------------------------------------
204 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
205 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
207 /* timeout values are in ticks = ms */
208 #define CONFIG_SYS_FLASH_ERASE_TOUT (120*CONFIG_SYS_HZ) /* Timeout for Flash Erase */
209 #define CONFIG_SYS_FLASH_WRITE_TOUT (1 * CONFIG_SYS_HZ) /* Timeout for Flash Write */
211 #define CONFIG_ENV_IS_IN_FLASH 1
212 #define CONFIG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
213 #define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
215 /* Address and size of Redundant Environment Sector */
216 #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET+CONFIG_ENV_SIZE)
217 #define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE)
219 #define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */
221 /*-----------------------------------------------------------------------
222 * Cache Configuration
224 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
225 #if defined(CONFIG_CMD_KGDB)
226 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
229 /*-----------------------------------------------------------------------
230 * SYPCR - System Protection Control 11-9
231 * SYPCR can only be written once after reset!
232 *-----------------------------------------------------------------------
233 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
235 #if defined(CONFIG_WATCHDOG)
236 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
237 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
239 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
242 /*-----------------------------------------------------------------------
243 * SIUMCR - SIU Module Configuration 11-6
244 *-----------------------------------------------------------------------
245 * PCMCIA config., multi-function pin tri-state
247 #ifndef CONFIG_CAN_DRIVER
248 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
249 #else /* we must activate GPL5 in the SIUMCR for CAN */
250 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
251 #endif /* CONFIG_CAN_DRIVER */
253 /*-----------------------------------------------------------------------
254 * TBSCR - Time Base Status and Control 11-26
255 *-----------------------------------------------------------------------
256 * Clear Reference Interrupt Status, Timebase freezing enabled
258 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
260 /*-----------------------------------------------------------------------
261 * RTCSC - Real-Time Clock Status and Control Register 11-27
262 *-----------------------------------------------------------------------
264 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
266 /*-----------------------------------------------------------------------
267 * PISCR - Periodic Interrupt Status and Control 11-31
268 *-----------------------------------------------------------------------
269 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
271 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF | PISCR_PTE)
273 /*-----------------------------------------------------------------------
274 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
275 *-----------------------------------------------------------------------
276 * Reset PLL lock status sticky bit, timer expired status bit and timer
277 * interrupt status bit
280 /* for 64 MHz, we use a 16 MHz clock * 4 */
281 #define CONFIG_SYS_PLPRCR ( (4-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
283 /*-----------------------------------------------------------------------
284 * SCCR - System Clock and reset Control Register 15-27
285 *-----------------------------------------------------------------------
286 * Set clock output, timebase and RTC source and divider,
287 * power management and some other internal clocks
289 #define SCCR_MASK SCCR_EBDF11
290 #define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_RTSEL | SCCR_RTDIV | \
291 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
292 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
295 /*-----------------------------------------------------------------------
297 *-----------------------------------------------------------------------
300 #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
301 #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
302 #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
303 #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
304 #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
305 #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
306 #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
307 #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
309 /*-----------------------------------------------------------------------
310 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
311 *-----------------------------------------------------------------------
314 #define CONFIG_IDE_PREINIT 1 /* Use preinit IDE hook */
315 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
317 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
318 #undef CONFIG_IDE_LED /* LED for ide not supported */
319 #undef CONFIG_IDE_RESET /* reset for ide not supported */
321 #define CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */
322 #define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
324 #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
326 #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
328 /* Offset for data I/O */
329 #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
331 /* Offset for normal register accesses */
332 #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
334 /* Offset for alternate registers */
335 #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
337 /*-----------------------------------------------------------------------
339 *-----------------------------------------------------------------------
342 /*#define CONFIG_SYS_DER 0x2002000F*/
343 #define CONFIG_SYS_DER 0
346 * Init Memory Controller:
351 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
353 /* used to re-map FLASH both when starting from SRAM or FLASH:
354 * restrict access enough to keep SRAM working (if any)
355 * but not too much to meddle with FLASH accesses
357 #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
358 #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
363 /* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
364 #define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
365 OR_SCY_3_CLK | OR_EHTR | OR_BI)
367 #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
368 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
369 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
372 * BR2/3 and OR2/3 (SDRAM)
375 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
376 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
377 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
379 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
380 #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000A00
382 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM )
383 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
385 #ifndef CONFIG_CAN_DRIVER
386 #define CONFIG_SYS_OR3_PRELIM CONFIG_SYS_OR2_PRELIM
387 #define CONFIG_SYS_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
388 #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
389 #define CONFIG_SYS_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
390 #define CONFIG_SYS_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
391 #define CONFIG_SYS_OR3_CAN (CONFIG_SYS_CAN_OR_AM | OR_G5LA | OR_BI)
392 #define CONFIG_SYS_BR3_CAN ((CONFIG_SYS_CAN_BASE & BR_BA_MSK) | \
393 BR_PS_8 | BR_MS_UPMB | BR_V )
394 #endif /* CONFIG_CAN_DRIVER */
397 * Memory Periodic Timer Prescaler
399 * The Divider for PTA (refresh timer) configuration is based on an
400 * example SDRAM configuration (64 MBit, one bank). The adjustment to
401 * the number of chip selects (NCS) and the actually needed refresh
402 * rate is done by setting MPTPR.
404 * PTA is calculated from
405 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
407 * gclk CPU clock (not bus clock!)
408 * Trefresh Refresh cycle * 4 (four word bursts used)
410 * 4096 Rows from SDRAM example configuration
411 * 1000 factor s -> ms
412 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
413 * 4 Number of refresh cycles per period
414 * 64 Refresh cycle in ms per number of rows
415 * --------------------------------------------
416 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
418 * 50 MHz => 50.000.000 / Divider = 98
419 * 66 Mhz => 66.000.000 / Divider = 129
420 * 80 Mhz => 80.000.000 / Divider = 156
422 #define CONFIG_SYS_MAMR_PTA 129
425 * For 16 MBit, refresh rates could be 31.3 us
426 * (= 64 ms / 2K = 125 / quad bursts).
427 * For a simpler initialization, 15.6 us is used instead.
429 * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
430 * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
432 #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
433 #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
435 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
436 #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
437 #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
440 * MAMR settings for SDRAM
444 #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
445 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
446 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
448 #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
449 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
450 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
453 #endif /* __CONFIG_H */