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
35 #define CONFIG_MPC852T 1
36 #define CONFIG_NC650 1
38 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
39 #undef CONFIG_8xx_CONS_SMC2
40 #undef CONFIG_8xx_CONS_NONE
41 #define CONFIG_BAUDRATE 115200
42 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
45 * 10 MHz - PLL input clock
47 #define CONFIG_8xx_OSCLK 10000000
50 * 50 MHz - default CPU clock
52 #define CONFIG_8xx_CPUCLK_DEFAULT 50000000
55 * 15 MHz - CPU minimum clock
57 #define CFG_8xx_CPUCLK_MIN 15000000
60 * 133 MHz - CPU maximum clock
62 #define CFG_8xx_CPUCLK_MAX 133000000
64 #define CFG_MEASURE_CPUCLK
65 #define CFG_8XX_XIN CONFIG_8xx_OSCLK
67 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
69 #define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo"
71 #undef CONFIG_BOOTARGS
72 #define CONFIG_BOOTCOMMAND \
74 "setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " \
75 "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" \
78 #undef CONFIG_WATCHDOG /* watchdog disabled */
80 #undef CONFIG_STATUS_LED /* Status LED disabled */
82 #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
84 #define CONFIG_FEC_ENET 1 /* use FEC ethernet */
87 #define CFG_DISCOVER_PHY 1
90 /* enable I2C and select the hardware/software driver */
91 #undef CONFIG_HARD_I2C /* I2C with hardware support */
92 #define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
93 #define CFG_I2C_SPEED 100000 /* 100 kHz */
94 #define CFG_I2C_SLAVE 0x7f
97 * Software (bit-bang) I2C driver configuration
99 #define SCL 0x1000 /* PA 3 */
100 #define SDA 0x2000 /* PA 2 */
102 #define PAR immr->im_ioport.iop_papar
103 #define DIR immr->im_ioport.iop_padir
104 #define DAT immr->im_ioport.iop_padat
106 #define I2C_INIT {PAR &= ~(SCL | SDA); DIR |= SCL;}
107 #define I2C_ACTIVE (DIR |= SDA)
108 #define I2C_TRISTATE (DIR &= ~SDA)
109 #define I2C_READ ((DAT & SDA) != 0)
110 #define I2C_SDA(bit) if (bit) DAT |= SDA; \
112 #define I2C_SCL(bit) if (bit) DAT |= SCL; \
114 #define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
116 #define CONFIG_RTC_PCF8563
117 #define CFG_I2C_RTC_ADDR 0x51
119 #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
129 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
130 #include <cmd_confdefs.h>
133 * Miscellaneous configurable options
135 #define CFG_LONGHELP /* undef to save memory */
136 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
137 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
138 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
140 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
142 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
143 #define CFG_MAXARGS 16 /* max number of command args */
144 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
146 #define CFG_MEMTEST_START 0x0100000 /* memtest works on */
147 #define CFG_MEMTEST_END 0x0400000 /* 1 ... 4 MB in DRAM */
149 #define CFG_LOAD_ADDR 0x00100000
151 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
153 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
156 * Low Level Configuration Settings
157 * (address mappings, register initial values, etc.)
158 * You should know what you are doing if you make changes here.
160 /*-----------------------------------------------------------------------
161 * Internal Memory Mapped Register
163 #define CFG_IMMR 0xF0000000
164 #define CFG_IMMR_SIZE ((uint)(64 * 1024))
166 /*-----------------------------------------------------------------------
167 * Definitions for initial stack pointer and data area (in DPRAM)
169 #define CFG_INIT_RAM_ADDR CFG_IMMR
170 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
171 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
172 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
173 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
175 /*-----------------------------------------------------------------------
176 * Start addresses for the final memory configuration
177 * (Set up by the startup code)
178 * Please note that CFG_SDRAM_BASE _must_ start at 0
180 #define CFG_SDRAM_BASE 0x00000000
181 #define CFG_FLASH_BASE 0x40000000
183 #define CFG_RESET_ADDRESS 0xFFF00100
185 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
186 #define CFG_MONITOR_BASE TEXT_BASE
187 #define CFG_MALLOC_LEN (256 << 10) /* Reserve 256 kB for malloc() */
190 * For booting Linux, the board info and command line data
191 * have to be in the first 8 MB of memory, since this is
192 * the maximum mapped by the Linux kernel during initialization.
194 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
195 /*-----------------------------------------------------------------------
198 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
199 #define CFG_MAX_FLASH_SECT 64 /* max number of sectors on one chip */
201 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
202 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
205 #define CFG_ENV_IS_IN_FLASH 1
206 #define CFG_ENV_OFFSET 0x00740000
208 #define CFG_ENV_SECT_SIZE 0x20000 /* Total Size of Environment sector */
209 #define CFG_ENV_SIZE 0x4000 /* Used Size of Environment Sector */
211 /*-----------------------------------------------------------------------
212 * Cache Configuration
214 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
215 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
216 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
222 #define CFG_MAX_NAND_DEVICE 1
223 #define NAND_ChipID_UNKNOWN 0x00
224 #define SECTORSIZE 512
225 #define NAND_MAX_FLOORS 1
226 #define NAND_MAX_CHIPS 1
228 #define ADDR_COLUMN_PAGE 3
229 #define ADDR_COLUMN 1
232 #define NAND_WAIT_READY(nand) udelay(12)
233 #define WRITE_NAND_COMMAND(d, adr) WRITE_NAND(d, adr + 2)
234 #define WRITE_NAND_ADDRESS(d, adr) WRITE_NAND(d, adr + 1)
235 #define WRITE_NAND(d, adr) (*(volatile uint8_t *)(adr) = (uint8_t)(d))
236 #define READ_NAND(adr) (*(volatile uint8_t *)(adr))
237 #define NAND_DISABLE_CE(nand) /* nop */
238 #define NAND_ENABLE_CE(nand) /* nop */
239 #define NAND_CTL_CLRALE(nandptr) /* nop */
240 #define NAND_CTL_SETALE(nandptr) /* nop */
241 #define NAND_CTL_CLRCLE(nandptr) /* nop */
242 #define NAND_CTL_SETCLE(nandptr) /* nop */
244 /*-----------------------------------------------------------------------
245 * SYPCR - System Protection Control 11-9
246 * SYPCR can only be written once after reset!
247 *-----------------------------------------------------------------------
248 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
250 #if defined(CONFIG_WATCHDOG)
251 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
252 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
254 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
257 /*-----------------------------------------------------------------------
258 * SIUMCR - SIU Module Configuration 11-6
259 *-----------------------------------------------------------------------
261 #define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
263 /*-----------------------------------------------------------------------
264 * TBSCR - Time Base Status and Control 11-26
265 *-----------------------------------------------------------------------
266 * Clear Reference Interrupt Status, Timebase freezing enabled
268 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE)
270 /*-----------------------------------------------------------------------
271 * PISCR - Periodic Interrupt Status and Control 11-31
272 *-----------------------------------------------------------------------
273 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
275 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
277 /*-----------------------------------------------------------------------
278 * SCCR - System Clock and reset Control Register 15-27
279 *-----------------------------------------------------------------------
280 * Set clock output, timebase and RTC source and divider,
281 * power management and some other internal clocks
283 #define SCCR_MASK SCCR_EBDF11
284 #define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | \
285 SCCR_DFBRG00 | SCCR_DFNL000 | SCCR_DFNH000 | \
286 SCCR_DFLCD000 | SCCR_DFALCD00)
288 /*-----------------------------------------------------------------------
290 *-----------------------------------------------------------------------
296 * Init Memory Controller:
298 * BR0 and OR0 (FLASH)
301 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
303 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
304 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
306 /* FLASH timing: Default value of OR0 after reset */
307 #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_MSK | OR_BI | \
308 OR_SCY_15_CLK | OR_TRLX)
310 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
311 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
312 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_8 | BR_V)
315 * BR2 and OR2 (NAND Flash) - now addressed through UPMB
317 #define CFG_NAND_BASE 0x50000000
318 #define CFG_NAND_SIZE 0x04000000
320 #define CFG_OR_TIMING_NAND (OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \
321 OR_SCY_15_CLK | OR_EHTR | OR_TRLX)
323 #define CFG_BR2_PRELIM ((CFG_NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_MS_UPMB | BR_V )
324 #define CFG_OR2_PRELIM (((-CFG_NAND_SIZE) & OR_AM_MSK) | OR_BI )
327 * BR3 and OR3 (SDRAM)
329 #define SDRAM_BASE3_PRELIM 0x00000000 /* SDRAM bank */
330 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
333 * SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care)
335 #define CFG_OR_TIMING_SDRAM 0x00000A00
337 #define CFG_OR3_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM)
338 #define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V)
343 #define CFG_SRAM_BASE 0x60000000
344 #define CFG_SRAM_SIZE 0x00080000
346 #define CFG_OR_TIMING_SRAM (OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \
347 OR_SCY_15_CLK | OR_EHTR | OR_TRLX)
349 #define CFG_BR5_PRELIM ((CFG_SRAM_BASE & BR_BA_MSK) | BR_PS_8 | BR_V )
350 #define CFG_OR5_PRELIM (((-CFG_SRAM_SIZE) & OR_AM_MSK) | CFG_OR_TIMING_SRAM)
354 * 4096 Rows from SDRAM example configuration
355 * 1000 factor s -> ms
356 * 64 PTP (pre-divider from MPTPR) from SDRAM example configuration
357 * 4 Number of refresh cycles per period
358 * 64 Refresh cycle in ms per number of rows
360 #define CFG_PTA_PER_CLK ((4096 * 64 * 1000) / (4 * 64))
363 * Memory Periodic Timer Prescaler
366 /* periodic timer for refresh */
367 #define CFG_MAMR_PTA 39
369 /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
370 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
371 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
373 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
374 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
375 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
378 * MAMR settings for SDRAM
381 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
382 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
383 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
384 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
385 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
386 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
389 * MBMR settings for NAND flash
392 #define CFG_MBMR_NAND ( MBMR_WLFB_5X )
395 * Internal Definitions
399 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
400 #define BOOTFLAG_WARM 0x02 /* Software reboot */
402 #define CONFIG_JFFS2_NAND 1 /* jffs2 on nand support */
403 #define CONFIG_JFFS2_NAND_DEV 0 /* nand device jffs2 lives on */
404 #define CONFIG_JFFS2_NAND_OFF 0 /* start of jffs2 partition */
405 #define CONFIG_JFFS2_NAND_SIZE 4*1024*1024 /* size of jffs2 partition */
406 #define NAND_CACHE_PAGES 16 /* size of nand cache in 512 bytes pages */
408 #endif /* __CONFIG_H */