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c12b5a32 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net | |
4 | * | |
5 | * (C) Copyright 2001 | |
6 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
7 | * | |
3765b3e7 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
c12b5a32 WD |
9 | */ |
10 | ||
11 | /* | |
12 | * board/config.h - configuration options, board specific | |
13 | */ | |
14 | ||
15 | #ifndef __CONFIG_H | |
16 | #define __CONFIG_H | |
17 | ||
18 | /* | |
19 | * High Level Configuration Options | |
20 | * (easy to change) | |
21 | */ | |
22 | ||
23 | #define CONFIG_MPC823 1 /* This is a MPC823 CPU */ | |
24 | #define CONFIG_NX823 1 /* ...on a NEXUS 823 module */ | |
25 | ||
2ae18241 WD |
26 | #define CONFIG_SYS_TEXT_BASE 0x40000000 |
27 | ||
c12b5a32 WD |
28 | /*#define CONFIG_VIDEO 1 */ |
29 | ||
30 | #define CONFIG_8xx_GCLK_FREQ MPC8XX_SPEED | |
31 | #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ | |
32 | #undef CONFIG_8xx_CONS_SMC2 | |
33 | #undef CONFIG_8xx_CONS_NONE | |
34 | #define CONFIG_BAUDRATE 57600 /* console baudrate = 115kbps */ | |
35 | #define CONFIG_BOOTDELAY 2 /* autoboot after 2 seconds */ | |
e5084af8 | 36 | #define CONFIG_BOOTARGS "ramdisk_size=8000 "\ |
c12b5a32 WD |
37 | "root=/dev/nfs rw nfsroot=10.77.77.250:/ppcroot "\ |
38 | "nfsaddrs=10.77.77.20:10.77.77.250" | |
39 | #define CONFIG_BOOTCOMMAND "bootm 400e0000" | |
40 | ||
41 | #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ | |
6d0f6bcf | 42 | #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */ |
c12b5a32 | 43 | #undef CONFIG_WATCHDOG /* watchdog disabled, for now */ |
74de7aef | 44 | #define CONFIG_SOURCE |
c12b5a32 | 45 | |
7be044e4 JL |
46 | /* |
47 | * BOOTP options | |
48 | */ | |
49 | #define CONFIG_BOOTP_SUBNETMASK | |
50 | #define CONFIG_BOOTP_GATEWAY | |
51 | #define CONFIG_BOOTP_HOSTNAME | |
52 | #define CONFIG_BOOTP_BOOTPATH | |
53 | #define CONFIG_BOOTP_BOOTFILESIZE | |
54 | ||
e18a1061 JL |
55 | |
56 | /* | |
57 | * Command line configuration. | |
58 | */ | |
59 | #include <config_cmd_default.h> | |
60 | ||
74de7aef | 61 | #define CONFIG_CMD_SOURCE |
e18a1061 JL |
62 | |
63 | ||
c12b5a32 WD |
64 | /* call various generic functions */ |
65 | #define CONFIG_MISC_INIT_R | |
66 | ||
c12b5a32 WD |
67 | /* |
68 | * Miscellaneous configurable options | |
69 | */ | |
6d0f6bcf | 70 | #define CONFIG_SYS_LONGHELP /* undef to save memory */ |
e18a1061 | 71 | #if defined(CONFIG_CMD_KGDB) |
6d0f6bcf | 72 | #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */ |
c12b5a32 | 73 | #else |
6d0f6bcf | 74 | #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ |
c12b5a32 | 75 | #endif |
6d0f6bcf JCPV |
76 | #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */ |
77 | #define CONFIG_SYS_MAXARGS 16 /* max number of command args */ | |
78 | #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */ | |
c12b5a32 | 79 | |
6d0f6bcf JCPV |
80 | #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */ |
81 | #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ | |
c12b5a32 | 82 | |
6d0f6bcf | 83 | #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */ |
c12b5a32 | 84 | |
6d0f6bcf | 85 | #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */ |
c12b5a32 | 86 | |
c12b5a32 WD |
87 | /* |
88 | * Low Level Configuration Settings | |
89 | * (address mappings, register initial values, etc.) | |
90 | * You should know what you are doing if you make changes here. | |
91 | */ | |
92 | /*----------------------------------------------------------------------- | |
93 | * Internal Memory Mapped Register | |
94 | */ | |
6d0f6bcf | 95 | #define CONFIG_SYS_IMMR 0xFFF00000 |
c12b5a32 WD |
96 | |
97 | /*----------------------------------------------------------------------- | |
98 | * Definitions for initial stack pointer and data area (in DPRAM) | |
99 | */ | |
6d0f6bcf | 100 | #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR |
553f0982 | 101 | #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */ |
25ddd1fb | 102 | #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE) |
6d0f6bcf | 103 | #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET |
c12b5a32 WD |
104 | |
105 | /*----------------------------------------------------------------------- | |
106 | * Start addresses for the final memory configuration | |
107 | * (Set up by the startup code) | |
6d0f6bcf | 108 | * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0 |
c12b5a32 | 109 | */ |
6d0f6bcf JCPV |
110 | #define CONFIG_SYS_SDRAM_BASE 0x00000000 |
111 | #define CONFIG_SYS_FLASH_BASE 0x40000000 | |
112 | #define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */ | |
113 | #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE | |
114 | #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ | |
c12b5a32 WD |
115 | |
116 | /* | |
117 | * For booting Linux, the board info and command line data | |
118 | * have to be in the first 8 MB of memory, since this is | |
119 | * the maximum mapped by the Linux kernel during initialization. | |
120 | */ | |
6d0f6bcf | 121 | #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ |
c12b5a32 WD |
122 | |
123 | /*----------------------------------------------------------------------- | |
124 | * FLASH organization | |
125 | */ | |
6d0f6bcf JCPV |
126 | #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ |
127 | #define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ | |
c12b5a32 | 128 | |
6d0f6bcf JCPV |
129 | #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ |
130 | #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ | |
c12b5a32 | 131 | |
5a1aceb0 | 132 | #define CONFIG_ENV_IS_IN_FLASH 1 |
c12b5a32 WD |
133 | #define xEMBED |
134 | #ifdef EMBED | |
0e8d1586 | 135 | #define CONFIG_ENV_SIZE 0x200 /* FIXME How big when embedded?? */ |
6d0f6bcf | 136 | #define CONFIG_ENV_ADDR CONFIG_SYS_MONITOR_BASE |
c12b5a32 | 137 | #else |
0e8d1586 JCPV |
138 | #define CONFIG_ENV_ADDR 0x40020000 /* absolute address for now */ |
139 | #define CONFIG_ENV_SIZE 0x20000 /* 8K ouch, this may later be */ | |
c12b5a32 WD |
140 | #endif |
141 | ||
6d0f6bcf JCPV |
142 | #define CONFIG_SYS_FLASH_SN_BASE 0x4001fff0 /* programmer automagically puts */ |
143 | #define CONFIG_SYS_FLASH_SN_SECTOR 0x40000000 /* a serial number here */ | |
144 | #define CONFIG_SYS_FLASH_SN_BYTES 8 | |
c12b5a32 WD |
145 | |
146 | /*----------------------------------------------------------------------- | |
147 | * Cache Configuration | |
148 | */ | |
6d0f6bcf | 149 | #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ |
e18a1061 | 150 | #if defined(CONFIG_CMD_KGDB) |
6d0f6bcf | 151 | #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */ |
c12b5a32 WD |
152 | #endif |
153 | ||
154 | /*----------------------------------------------------------------------- | |
155 | * SYPCR - System Protection Control 11-9 | |
156 | * SYPCR can only be written once after reset! | |
157 | *----------------------------------------------------------------------- | |
158 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze | |
159 | */ | |
160 | #if defined(CONFIG_WATCHDOG) | |
6d0f6bcf | 161 | #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ |
c12b5a32 WD |
162 | SYPCR_SWE | SYPCR_SWP) |
163 | #else | |
6d0f6bcf | 164 | #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) |
c12b5a32 WD |
165 | #endif |
166 | ||
167 | /*----------------------------------------------------------------------- | |
168 | * SIUMCR - SIU Module Configuration 12-30 | |
169 | *----------------------------------------------------------------------- | |
170 | * PCMCIA config., multi-function pin tri-state | |
171 | */ | |
6d0f6bcf | 172 | #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00) |
c12b5a32 WD |
173 | |
174 | /*----------------------------------------------------------------------- | |
175 | * TBSCR - Time Base Status and Control 12-16 | |
176 | *----------------------------------------------------------------------- | |
177 | * Clear Reference Interrupt Status, Timebase freezing enabled | |
178 | */ | |
6d0f6bcf | 179 | #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) |
c12b5a32 WD |
180 | |
181 | /*----------------------------------------------------------------------- | |
182 | * RTCSC - Real-Time Clock Status and Control Register 12-18 | |
183 | *----------------------------------------------------------------------- | |
184 | */ | |
6d0f6bcf | 185 | #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) |
c12b5a32 WD |
186 | |
187 | /*----------------------------------------------------------------------- | |
188 | * PISCR - Periodic Interrupt Status and Control 12-23 | |
189 | *----------------------------------------------------------------------- | |
190 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled | |
191 | */ | |
6d0f6bcf | 192 | #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF) |
c12b5a32 WD |
193 | |
194 | /*----------------------------------------------------------------------- | |
195 | * PLPRCR - PLL, Low-Power, and Reset Control Register 5-7 | |
196 | *----------------------------------------------------------------------- | |
197 | * Reset PLL lock status sticky bit, timer expired status bit and timer | |
198 | * interrupt status bit | |
199 | */ | |
200 | #define MPC8XX_SPEED 66666666L | |
201 | #define MPC8XX_XIN 32768 /* 32.768 kHz crystal */ | |
202 | #define MPC8XX_FACT (MPC8XX_SPEED/MPC8XX_XIN) | |
6d0f6bcf JCPV |
203 | #define CONFIG_SYS_PLPRCR_MF ((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) |
204 | #define CONFIG_SYS_PLPRCR (CONFIG_SYS_PLPRCR_MF | PLPRCR_TEXPS | PLPRCR_TMIST) | |
c12b5a32 WD |
205 | |
206 | /*----------------------------------------------------------------------- | |
207 | * SCCR - System Clock and reset Control Register 5-3 | |
208 | *----------------------------------------------------------------------- | |
209 | * Set clock output, timebase and RTC source and divider, | |
210 | * power management and some other internal clocks | |
211 | */ | |
212 | #define SCCR_MASK SCCR_EBDF11 | |
6d0f6bcf | 213 | #define CONFIG_SYS_SCCR (SCCR_TBS | \ |
c12b5a32 WD |
214 | SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ |
215 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ | |
216 | SCCR_DFALCD00) | |
217 | ||
218 | /*----------------------------------------------------------------------- | |
219 | * | |
220 | *----------------------------------------------------------------------- | |
221 | * | |
222 | */ | |
6d0f6bcf | 223 | #define CONFIG_SYS_DER 0 |
c12b5a32 WD |
224 | |
225 | /* | |
226 | * Init Memory Controller: | |
227 | * | |
228 | * BR0 and OR0 (FLASH) | |
229 | */ | |
230 | ||
231 | #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ | |
232 | ||
233 | /* used to re-map FLASH both when starting from SRAM or FLASH: | |
234 | * restrict access enough to keep SRAM working (if any) | |
235 | * but not too much to meddle with FLASH accesses | |
236 | */ | |
6d0f6bcf JCPV |
237 | #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */ |
238 | #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */ | |
c12b5a32 WD |
239 | |
240 | /* FLASH timing: ACS = 00, TRLX = 0, CSNT = 1, SCY = 8, EHTR = 0 */ | |
6d0f6bcf | 241 | #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \ |
c12b5a32 WD |
242 | OR_SCY_8_CLK ) |
243 | ||
6d0f6bcf JCPV |
244 | #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH) |
245 | #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH) | |
246 | #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V ) | |
c12b5a32 WD |
247 | |
248 | /* | |
249 | * BR1/2 and OR1/2 (SDRAM) | |
250 | */ | |
251 | #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */ | |
252 | #define SDRAM_BASE2_PRELIM 0x20000000 /* SDRAM bank #1 */ | |
253 | #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ | |
254 | ||
255 | /* SDRAM timing: Multiplexed addresses, drive GPL5 high on first cycle */ | |
6d0f6bcf | 256 | #define CONFIG_SYS_OR_TIMING_SDRAM (OR_G5LS | OR_CSNT_SAM) |
c12b5a32 | 257 | |
6d0f6bcf JCPV |
258 | #define CONFIG_SYS_OR1_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM ) |
259 | #define CONFIG_SYS_BR1_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | |
260 | #define CONFIG_SYS_OR2_PRELIM CONFIG_SYS_OR1_PRELIM | |
261 | #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | |
c12b5a32 WD |
262 | |
263 | /* IO and memory mapped stuff */ | |
264 | #define NX823_IO_OR_AM 0xFFFF0000 /* mask for IO addresses */ | |
265 | #define NX823_IO_BASE 0xFF000000 /* start of IO */ | |
266 | #define GPOUT_OFFSET (3<<16) | |
267 | #define QUART_OFFSET (4<<16) | |
268 | #define VIDAC_OFFSET (5<<16) | |
269 | #define CPLD_OFFSET (6<<16) | |
270 | #define SED1386_OFFSET (7<<16) | |
271 | ||
272 | /* | |
273 | * BR3 and OR3 (general purpose output latches) | |
274 | */ | |
275 | #define GPOUT_BASE (NX823_IO_BASE + GPOUT_OFFSET) | |
276 | #define GPOUT_TIMING (OR_CSNT_SAM | OR_TRLX | OR_BI) | |
6d0f6bcf JCPV |
277 | #define CONFIG_SYS_OR3_PRELIM (NX823_IO_OR_AM | GPOUT_TIMING) |
278 | #define CONFIG_SYS_BR3_PRELIM (GPOUT_BASE | BR_V) | |
c12b5a32 WD |
279 | |
280 | /* | |
281 | * BR4 and OR4 (QUART) | |
282 | */ | |
283 | #define QUART_BASE (NX823_IO_BASE + QUART_OFFSET) | |
284 | #define QUART_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_TRLX) | |
6d0f6bcf JCPV |
285 | #define CONFIG_SYS_OR4_PRELIM (NX823_IO_OR_AM | QUART_TIMING | OR_BI) |
286 | #define CONFIG_SYS_BR4_PRELIM (QUART_BASE | BR_PS_8 | BR_V) | |
c12b5a32 WD |
287 | |
288 | /* | |
289 | * BR5 and OR5 (Video DAC) | |
290 | */ | |
291 | #define VIDAC_BASE (NX823_IO_BASE + VIDAC_OFFSET) | |
292 | #define VIDAC_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR) | |
6d0f6bcf JCPV |
293 | #define CONFIG_SYS_OR5_PRELIM (NX823_IO_OR_AM | VIDAC_TIMING | OR_BI) |
294 | #define CONFIG_SYS_BR5_PRELIM (VIDAC_BASE | BR_PS_8 | BR_V) | |
c12b5a32 WD |
295 | |
296 | /* | |
297 | * BR6 and OR6 (CPLD) | |
298 | * FIXME timing not verified for CPLD | |
299 | */ | |
300 | #define CPLD_BASE (NX823_IO_BASE + CPLD_OFFSET) | |
301 | #define CPLD_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR) | |
6d0f6bcf JCPV |
302 | #define CONFIG_SYS_OR6_PRELIM (NX823_IO_OR_AM | CPLD_TIMING | OR_BI) |
303 | #define CONFIG_SYS_BR6_PRELIM (CPLD_BASE | BR_PS_8 | BR_V ) | |
c12b5a32 WD |
304 | |
305 | /* | |
306 | * BR7 and OR7 (SED1386) | |
307 | * FIXME timing not verified for SED controller | |
308 | */ | |
309 | #define SED1386_BASE 0xF7000000 | |
6d0f6bcf JCPV |
310 | #define CONFIG_SYS_OR7_PRELIM (0xFF000000 | OR_BI | OR_SETA) |
311 | #define CONFIG_SYS_BR7_PRELIM (SED1386_BASE | BR_PS_16 | BR_V ) | |
c12b5a32 WD |
312 | |
313 | /* | |
314 | * Memory Periodic Timer Prescaler | |
315 | */ | |
316 | ||
317 | /* periodic timer for refresh */ | |
6d0f6bcf | 318 | #define CONFIG_SYS_MAMR_PTA 97 /* start with divider for 100 MHz */ |
c12b5a32 WD |
319 | |
320 | /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */ | |
6d0f6bcf JCPV |
321 | #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ |
322 | #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ | |
c12b5a32 WD |
323 | |
324 | /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ | |
6d0f6bcf JCPV |
325 | #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ |
326 | #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ | |
c12b5a32 WD |
327 | |
328 | /* | |
329 | * MAMR settings for SDRAM | |
330 | */ | |
331 | ||
332 | /* 8 column SDRAM */ | |
6d0f6bcf | 333 | #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
c12b5a32 WD |
334 | MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ |
335 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) | |
336 | /* 9 column SDRAM */ | |
6d0f6bcf | 337 | #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
c12b5a32 WD |
338 | MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ |
339 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) | |
340 | ||
c12b5a32 WD |
341 | #define CONFIG_ENV_OVERWRITE /* allow changes to ethaddr (for now) */ |
342 | #define CONFIG_ETHADDR 00:10:20:30:40:50 | |
343 | #define CONFIG_IPADDR 10.77.77.20 | |
344 | #define CONFIG_SERVERIP 10.77.77.250 | |
345 | ||
346 | #endif /* __CONFIG_H */ |