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1 | /* |
2 | * U-Boot configuration for SIXNET SXNI855T CPU board. | |
3 | * This board is based (loosely) on the Motorola FADS board, so this | |
4 | * file is based (loosely) on config_FADS860T.h, see it for additional | |
5 | * credits. | |
6 | * | |
7 | * Copyright (c) 2000-2002 Dave Ellis, SIXNET, [email protected] | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
29 | /* | |
30 | * Memory map: | |
31 | * | |
32 | * ff100000 -> ff13ffff : FPGA CS1 | |
33 | * ff030000 -> ff03ffff : EXPANSION CS7 | |
34 | * ff020000 -> ff02ffff : DATA FLASH CS4 | |
35 | * ff018000 -> ff01ffff : UART B CS6/UPMB | |
36 | * ff010000 -> ff017fff : UART A CS5/UPMB | |
37 | * ff000000 -> ff00ffff : IMAP internal to the MPC855T | |
38 | * f8000000 -> fbffffff : FLASH CS0 up to 64MB | |
39 | * f4000000 -> f7ffffff : NVSRAM CS2 up to 64MB | |
40 | * 00000000 -> 0fffffff : SDRAM CS3/UPMA up to 256MB | |
41 | */ | |
42 | ||
43 | /* ------------------------------------------------------------------------- */ | |
44 | ||
45 | /* | |
46 | * board/config.h - configuration options, board specific | |
47 | */ | |
48 | ||
49 | #ifndef __CONFIG_H | |
50 | #define __CONFIG_H | |
51 | ||
52 | /* | |
53 | * High Level Configuration Options | |
54 | * (easy to change) | |
55 | */ | |
56 | #include <mpc8xx_irq.h> | |
57 | ||
58 | #define CONFIG_SXNI855T 1 /* SIXNET IPm 855T CPU module */ | |
59 | ||
60 | /* The 855T is just a stripped 860T and needs code for 860, so for now | |
61 | * at least define 860, 860T and 855T | |
62 | */ | |
63 | #define CONFIG_MPC860 1 | |
64 | #define CONFIG_MPC860T 1 | |
65 | #define CONFIG_MPC855T 1 | |
66 | ||
67 | #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ | |
68 | #undef CONFIG_8xx_CONS_SMC2 | |
69 | #undef CONFIG_8xx_CONS_SCC1 | |
70 | #undef CONFIG_8xx_CONS_NONE | |
71 | #define CONFIG_BAUDRATE 9600 | |
72 | #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ | |
73 | ||
74 | #define MPC8XX_FACT 10 /* 50 MHz is 5 MHz in times 10 */ | |
75 | ||
76 | #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */ | |
77 | ||
78 | #if 0 | |
79 | #define CONFIG_BOOTDELAY -1 /* autoboot disabled */ | |
80 | #else | |
81 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ | |
82 | #endif | |
83 | ||
84 | #define CONFIG_BOOTCOMMAND "bootm f8040000 f8100000" /* autoboot command */ | |
85 | #define CONFIG_BOOTARGS "root=/dev/ram ip=off" | |
86 | ||
87 | #define CONFIG_MISC_INIT_R /* have misc_init_r() function */ | |
88 | #define CONFIG_BOARD_POSTCLK_INIT /* have board_postclk_init() function */ | |
89 | ||
90 | #undef CONFIG_WATCHDOG /* watchdog disabled */ | |
91 | ||
92 | #define CONFIG_RTC_DS1306 /* Dallas 1306 real time clock */ | |
93 | ||
94 | #define CONFIG_SOFT_I2C /* I2C bit-banged */ | |
95 | /* | |
96 | * Software (bit-bang) I2C driver configuration | |
97 | */ | |
98 | #define PB_SCL 0x00000020 /* PB 26 */ | |
99 | #define PB_SDA 0x00000010 /* PB 27 */ | |
100 | ||
101 | #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL) | |
102 | #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA) | |
103 | #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA) | |
104 | #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0) | |
105 | #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \ | |
106 | else immr->im_cpm.cp_pbdat &= ~PB_SDA | |
107 | #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \ | |
108 | else immr->im_cpm.cp_pbdat &= ~PB_SCL | |
109 | #define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */ | |
110 | ||
111 | # define CFG_I2C_SPEED 50000 | |
112 | # define CFG_I2C_SLAVE 0xFE | |
113 | # define CFG_I2C_EEPROM_ADDR 0x50 /* Atmel 24C64 */ | |
114 | # define CFG_I2C_EEPROM_ADDR_LEN 2 /* two byte address */ | |
115 | ||
116 | #define CONFIG_FEC_ENET 1 /* use FEC ethernet */ | |
117 | ||
118 | #define CFG_DISCOVER_PHY | |
119 | ||
120 | #define CONFIG_COMMANDS (CONFIG_CMD_DFL | CFG_CMD_EEPROM | CFG_CMD_DATE) | |
121 | ||
122 | /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ | |
123 | #include <cmd_confdefs.h> | |
124 | ||
125 | /* | |
126 | * Miscellaneous configurable options | |
127 | */ | |
128 | #define CFG_LONGHELP /* undef to save a little memory */ | |
129 | #define CFG_PROMPT "=>" /* Monitor Command Prompt */ | |
130 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
131 | #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ | |
132 | #else | |
133 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ | |
134 | #endif | |
135 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ | |
136 | #define CFG_MAXARGS 16 /* max number of command args */ | |
137 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ | |
138 | ||
139 | #define CFG_MEMTEST_START 0x0100000 /* memtest works on */ | |
140 | #define CFG_MEMTEST_END 0x0400000 /* 1 ... 4 MB in DRAM */ | |
141 | ||
142 | #define CFG_LOAD_ADDR 0x00100000 | |
143 | ||
144 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ | |
145 | ||
146 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } | |
147 | ||
148 | /* | |
149 | * Low Level Configuration Settings | |
150 | * (address mappings, register initial values, etc.) | |
151 | * You should know what you are doing if you make changes here. | |
152 | */ | |
153 | /*----------------------------------------------------------------------- | |
154 | * Internal Memory Mapped Register | |
155 | */ | |
156 | #define CFG_IMMR 0xFF000000 | |
157 | #define CFG_IMMR_SIZE ((uint)(64 * 1024)) | |
158 | ||
159 | /*----------------------------------------------------------------------- | |
160 | * Definitions for initial stack pointer and data area (in DPRAM) | |
161 | */ | |
162 | #define CFG_INIT_RAM_ADDR CFG_IMMR | |
163 | #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ | |
164 | #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ | |
165 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) | |
166 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET | |
167 | ||
168 | /*----------------------------------------------------------------------- | |
169 | * Start addresses for the final memory configuration | |
170 | * (Set up by the startup code) | |
171 | * Please note that CFG_SDRAM_BASE _must_ start at 0 | |
172 | */ | |
173 | #define CFG_SDRAM_BASE 0x00000000 | |
174 | #define CFG_SRAM_BASE 0xF4000000 | |
175 | #define CFG_SRAM_SIZE 0x04000000 /* autosize up to 64Mbyte */ | |
176 | ||
177 | #define CFG_FLASH_BASE 0xF8000000 | |
178 | #define CFG_FLASH_SIZE ((uint)(8 * 1024 * 1024)) /* max 8Mbyte */ | |
179 | ||
180 | #define CFG_DFLASH_BASE 0xff020000 /* DiskOnChip or NAND FLASH */ | |
181 | #define CFG_DFLASH_SIZE 0x00010000 | |
182 | ||
183 | #define CFG_FPGA_BASE 0xFF100000 /* Xilinx FPGA */ | |
184 | #define CFG_FPGA_PROG 0xFF130000 /* Programming address */ | |
185 | #define CFG_FPGA_SIZE 0x00040000 /* 256KiB usable */ | |
186 | ||
187 | #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ | |
188 | #define CFG_MONITOR_BASE CFG_FLASH_BASE | |
189 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ | |
190 | ||
191 | /* | |
192 | * For booting Linux, the board info and command line data | |
193 | * have to be in the first 8 MB of memory, since this is | |
194 | * the maximum mapped by the Linux kernel during initialization. | |
195 | */ | |
196 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ | |
197 | /*----------------------------------------------------------------------- | |
198 | * FLASH organization | |
199 | */ | |
200 | #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ | |
201 | /* Intel 28F640 has 135, 127 64K sectors in 8MB, + 8 more for 8K boot blocks. | |
202 | * AMD 29LV641 has 128 64K sectors in 8MB | |
203 | */ | |
204 | #define CFG_MAX_FLASH_SECT 135 /* max number of sectors on one chip */ | |
205 | ||
206 | #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ | |
207 | #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ | |
208 | ||
209 | /*----------------------------------------------------------------------- | |
210 | * Cache Configuration | |
211 | */ | |
212 | #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ | |
213 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
214 | #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ | |
215 | #endif | |
216 | ||
217 | /*----------------------------------------------------------------------- | |
218 | * SYPCR - System Protection Control 11-9 | |
219 | * SYPCR can only be written once after reset! | |
220 | *----------------------------------------------------------------------- | |
221 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze | |
222 | */ | |
223 | #if defined(CONFIG_WATCHDOG) | |
224 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ | |
225 | SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) | |
226 | #else | |
227 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) | |
228 | #endif | |
229 | ||
230 | /*----------------------------------------------------------------------- | |
231 | * SIUMCR - SIU Module Configuration 11-6 | |
232 | *----------------------------------------------------------------------- | |
233 | * PCMCIA config., multi-function pin tri-state | |
234 | */ | |
235 | #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) | |
236 | ||
237 | /*----------------------------------------------------------------------- | |
238 | * TBSCR - Time Base Status and Control 11-26 | |
239 | *----------------------------------------------------------------------- | |
240 | * Clear Reference Interrupt Status, Timebase freezing enabled | |
241 | */ | |
242 | #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE) | |
243 | ||
244 | /*----------------------------------------------------------------------- | |
245 | * PISCR - Periodic Interrupt Status and Control 11-31 | |
246 | *----------------------------------------------------------------------- | |
247 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled | |
248 | */ | |
249 | #define CFG_PISCR (PISCR_PS | PISCR_PITF) | |
250 | ||
251 | /*----------------------------------------------------------------------- | |
252 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 | |
253 | *----------------------------------------------------------------------- | |
254 | * set the PLL, the low-power modes and the reset control (15-29) | |
255 | */ | |
256 | #define CFG_PLPRCR (((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) | \ | |
257 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) | |
258 | ||
259 | /*----------------------------------------------------------------------- | |
260 | * SCCR - System Clock and reset Control Register 15-27 | |
261 | *----------------------------------------------------------------------- | |
262 | * Set clock output, timebase and RTC source and divider, | |
263 | * power management and some other internal clocks | |
264 | */ | |
265 | #define SCCR_MASK SCCR_EBDF11 | |
266 | #define CFG_SCCR (SCCR_TBS|SCCR_COM00|SCCR_DFSYNC00|SCCR_DFBRG00|SCCR_DFNL000|SCCR_DFNH000|SCCR_DFLCD000|SCCR_DFALCD00) | |
267 | ||
268 | /*----------------------------------------------------------------------- | |
269 | * | |
270 | *----------------------------------------------------------------------- | |
271 | * | |
272 | */ | |
273 | #define CFG_DER 0 | |
274 | ||
275 | /* Because of the way the 860 starts up and assigns CS0 the | |
276 | * entire address space, we have to set the memory controller | |
277 | * differently. Normally, you write the option register | |
278 | * first, and then enable the chip select by writing the | |
279 | * base register. For CS0, you must write the base register | |
280 | * first, followed by the option register. | |
281 | */ | |
282 | ||
283 | /* | |
284 | * Init Memory Controller: | |
285 | * | |
286 | ********************************************************** | |
287 | * BR0 and OR0 (FLASH) | |
288 | */ | |
289 | ||
290 | #define CFG_PRELIM_OR0_AM 0xFC000000 /* OR addr mask */ | |
291 | ||
292 | /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 0 */ | |
293 | #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_3_CLK | OR_TRLX) | |
294 | ||
295 | #define CFG_OR0_PRELIM (CFG_PRELIM_OR0_AM | CFG_OR_TIMING_FLASH) | |
296 | ||
297 | #define CONFIG_FLASH_16BIT | |
298 | #define CFG_BR0_PRELIM ((CFG_FLASH_BASE & BR_BA_MSK) | BR_PS_16 | BR_V ) | |
299 | #define CFG_FLASH_PROTECTION /* need to lock/unlock sectors in hardware */ | |
300 | ||
301 | /********************************************************** | |
302 | * BR1 and OR1 (FPGA) | |
303 | * These preliminary values are also the final values. | |
304 | */ | |
305 | #define CFG_OR_TIMING_FPGA \ | |
306 | (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | OR_SCY_5_CLK | OR_EHTR) | |
307 | #define CFG_BR1_PRELIM ((CFG_FPGA_BASE & BR_BA_MSK) | BR_PS_8 | BR_V ) | |
308 | #define CFG_OR1_PRELIM (((-CFG_FPGA_SIZE) & OR_AM_MSK) | CFG_OR_TIMING_FPGA) | |
309 | ||
310 | /********************************************************** | |
311 | * BR4 and OR4 (data flash) | |
312 | * These preliminary values are also the final values. | |
313 | */ | |
314 | #define CFG_OR_TIMING_DFLASH \ | |
315 | (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_5_CLK | OR_EHTR) | |
316 | #define CFG_BR4_PRELIM ((CFG_DFLASH_BASE & BR_BA_MSK) | BR_PS_8 | BR_V ) | |
317 | #define CFG_OR4_PRELIM (((-CFG_DFLASH_SIZE) & OR_AM_MSK) | CFG_OR_TIMING_DFLASH) | |
318 | ||
319 | /********************************************************** | |
320 | * BR5/6 and OR5/6 (Dual UART) | |
321 | */ | |
322 | #define CFG_DUART_SIZE 0x8000 /* 32K window, only uses 8 bytes */ | |
323 | #define CFG_DUARTA_BASE 0xff010000 | |
324 | #define CFG_DUARTB_BASE 0xff018000 | |
325 | ||
326 | #define DUART_MBMR 0 | |
327 | #define DUART_OR_VALUE (ORMASK(CFG_DUART_SIZE) | OR_G5LS| OR_BI) | |
328 | #define DUART_BR_VALUE (BR_MS_UPMB | BR_PS_8 | BR_V) | |
329 | #define DUART_BR5_VALUE ((CFG_DUARTA_BASE & BR_BA_MSK ) | DUART_BR_VALUE) | |
330 | #define DUART_BR6_VALUE ((CFG_DUARTB_BASE & BR_BA_MSK ) | DUART_BR_VALUE) | |
331 | ||
332 | /********************************************************** | |
333 | * | |
334 | * Boot Flags | |
335 | */ | |
336 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ | |
337 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ | |
338 | ||
339 | #define CONFIG_RESET_ON_PANIC /* reset if system panic() */ | |
340 | ||
341 | /* to put environment in EEROM */ | |
342 | #define CFG_ENV_IS_IN_EEPROM 1 | |
343 | #define CFG_ENV_OFFSET 0 /* Start right at beginning of NVRAM */ | |
344 | #define CFG_ENV_SIZE 1024 /* Use only a part of it*/ | |
345 | ||
346 | #if 1 | |
347 | #define CONFIG_BOOT_RETRY_TIME 60 /* boot if no command in 60 seconds */ | |
348 | #endif | |
349 | ||
350 | #if 1 | |
351 | #define CONFIG_AUTOBOOT_KEYED /* use key strings to stop autoboot */ | |
352 | #define CONFIG_AUTOBOOT_PROMPT "autoboot in %d seconds\n" | |
353 | #define CONFIG_AUTOBOOT_DELAY_STR "delayabit" | |
354 | #define CONFIG_AUTOBOOT_STOP_STR " " /* easy to stop for now */ | |
355 | #endif | |
356 | ||
357 | #endif /* __CONFIG_H */ |