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ce23b153 | 1 | /* |
414eec35 | 2 | * (C) Copyright 2000-2005 |
ce23b153 WD |
3 | * Wolfgang Denk, DENX Software Engineering, [email protected]. |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* | |
25 | * board/config.h - configuration options, board specific | |
26 | */ | |
27 | ||
28 | #ifndef __CONFIG_H | |
29 | #define __CONFIG_H | |
30 | ||
31 | /* | |
32 | * High Level Configuration Options | |
33 | * (easy to change) | |
34 | */ | |
35 | ||
36 | #define CONFIG_MPC823 1 /* This is a MPC823 CPU */ | |
37 | #define CONFIG_R360MPI 1 | |
38 | ||
39 | #define CONFIG_LCD | |
40 | #undef CONFIG_EDT32F10 | |
41 | #define CONFIG_SHARP_LQ057Q3DC02 | |
42 | ||
d791b1dc WD |
43 | #define CONFIG_SPLASH_SCREEN |
44 | ||
ce23b153 WD |
45 | #define MPC8XX_FACT 1 /* Multiply by 1 */ |
46 | #define MPC8XX_XIN 50000000 /* 50 MHz in */ | |
47 | #define CONFIG_8xx_GCLK_FREQ 50000000 /* define if can't use get_gclk_freq */ | |
48 | ||
49 | #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ | |
50 | #undef CONFIG_8xx_CONS_SMC2 | |
51 | #undef CONFIG_8xx_CONS_NONE | |
4a6fd34b | 52 | #define CONFIG_BAUDRATE 115200 /* console baudrate in bps */ |
ce23b153 | 53 | #if 0 |
cb4dbb7b | 54 | #define CONFIG_BOOTDELAY 0 /* immediate boot */ |
ce23b153 WD |
55 | #else |
56 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ | |
57 | #endif | |
58 | ||
59 | #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */ | |
60 | ||
61 | #define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo" | |
62 | ||
63 | #undef CONFIG_BOOTARGS | |
64 | #define CONFIG_BOOTCOMMAND \ | |
65 | "bootp; " \ | |
66 | "setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " \ | |
67 | "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off; " \ | |
68 | "bootm" | |
69 | ||
70 | #undef CONFIG_SCC1_ENET | |
71 | #define CONFIG_SCC2_ENET | |
72 | ||
73 | #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ | |
74 | #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ | |
75 | ||
76 | #define CONFIG_MISC_INIT_R /* have misc_init_r() function */ | |
77 | ||
78 | #undef CONFIG_WATCHDOG /* watchdog disabled */ | |
79 | ||
4a6fd34b | 80 | #define CONFIG_CAN_DRIVER /* CAN Driver support enabled */ |
ce23b153 WD |
81 | |
82 | #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE) | |
83 | ||
84 | #define CONFIG_MAC_PARTITION | |
85 | #define CONFIG_DOS_PARTITION | |
86 | ||
87 | #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ | |
88 | ||
89 | #define CONFIG_HARD_I2C 1 /* To I2C with hardware support */ | |
90 | #undef CONFIG_SORT_I2C /* To I2C with software support */ | |
91 | #define CFG_I2C_SPEED 4700 /* I2C speed and slave address */ | |
92 | #define CFG_I2C_SLAVE 0x7F | |
93 | ||
94 | /* | |
95 | * Software (bit-bang) I2C driver configuration | |
96 | */ | |
97 | #define PB_SCL 0x00000020 /* PB 26 */ | |
98 | #define PB_SDA 0x00000010 /* PB 27 */ | |
99 | ||
100 | #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL) | |
101 | #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA) | |
102 | #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA) | |
103 | #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0) | |
104 | #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \ | |
105 | else immr->im_cpm.cp_pbdat &= ~PB_SDA | |
106 | #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \ | |
107 | else immr->im_cpm.cp_pbdat &= ~PB_SCL | |
108 | #define I2C_DELAY udelay(50) | |
109 | ||
4a6fd34b WD |
110 | #define CFG_I2C_LCD_ADDR 0x8 /* LCD Control */ |
111 | #define CFG_I2C_KEY_ADDR 0x9 /* Keyboard coprocessor */ | |
112 | #define CFG_I2C_TEM_ADDR 0x49 /* Temperature Sensors */ | |
ce23b153 WD |
113 | |
114 | #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ | |
d791b1dc | 115 | CFG_CMD_BMP | \ |
414eec35 | 116 | CFG_CMD_BSP | \ |
ce23b153 | 117 | CFG_CMD_DATE | \ |
414eec35 | 118 | CFG_CMD_DHCP | \ |
ce23b153 WD |
119 | CFG_CMD_I2C | \ |
120 | CFG_CMD_IDE | \ | |
cb4dbb7b | 121 | CFG_CMD_JFFS2 | \ |
414eec35 | 122 | CFG_CMD_NFS | \ |
ce23b153 | 123 | CFG_CMD_PCMCIA | \ |
414eec35 | 124 | CFG_CMD_SNTP ) |
ce23b153 WD |
125 | |
126 | /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ | |
127 | #include <cmd_confdefs.h> | |
128 | ||
129 | /* | |
130 | * Miscellaneous configurable options | |
131 | */ | |
cb4dbb7b WD |
132 | #define CFG_DEVICE_NULLDEV 1 /* we need the null device */ |
133 | #define CFG_CONSOLE_IS_IN_ENV 1 /* must set console from env */ | |
134 | ||
ce23b153 WD |
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 */ | |
139 | #else | |
140 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ | |
141 | #endif | |
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 */ | |
145 | ||
146 | #define CFG_MEMTEST_START 0x0400000 /* memtest works on */ | |
147 | #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ | |
148 | ||
149 | #define CFG_LOAD_ADDR 0x100000 /* default load address */ | |
150 | ||
151 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ | |
152 | ||
153 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } | |
154 | ||
700a0c64 WD |
155 | /* |
156 | * JFFS2 partitions | |
157 | */ | |
158 | /* No command line, one static partition | |
159 | * use all the space starting at offset 3MB*/ | |
160 | #undef CONFIG_JFFS2_CMDLINE | |
161 | #define CONFIG_JFFS2_DEV "nor0" | |
162 | #define CONFIG_JFFS2_PART_SIZE 0xFFFFFFFF | |
163 | #define CONFIG_JFFS2_PART_OFFSET 0x00300000 | |
164 | ||
165 | /* mtdparts command line support */ | |
166 | /* | |
167 | #define CONFIG_JFFS2_CMDLINE | |
168 | #define MTDIDS_DEFAULT "nor0=r360-0" | |
169 | #define MTDPARTS_DEFAULT "mtdparts=r360-0:-@3m(user)" | |
170 | */ | |
cb4dbb7b | 171 | |
ce23b153 WD |
172 | /* |
173 | * Low Level Configuration Settings | |
174 | * (address mappings, register initial values, etc.) | |
175 | * You should know what you are doing if you make changes here. | |
176 | */ | |
177 | /*----------------------------------------------------------------------- | |
178 | * Internal Memory Mapped Register | |
179 | */ | |
180 | #define CFG_IMMR 0xFF000000 | |
181 | ||
182 | /*----------------------------------------------------------------------- | |
183 | * Definitions for initial stack pointer and data area (in DPRAM) | |
184 | */ | |
185 | #define CFG_INIT_RAM_ADDR CFG_IMMR | |
186 | #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ | |
187 | #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ | |
188 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) | |
189 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET | |
190 | ||
191 | /*----------------------------------------------------------------------- | |
192 | * Start addresses for the final memory configuration | |
193 | * (Set up by the startup code) | |
194 | * Please note that CFG_SDRAM_BASE _must_ start at 0 | |
195 | */ | |
196 | #define CFG_SDRAM_BASE 0x00000000 | |
197 | #define CFG_FLASH_BASE 0x40000000 | |
198 | #if defined(DEBUG) | |
199 | #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ | |
200 | #else | |
201 | #define CFG_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */ | |
202 | #endif | |
203 | #define CFG_MONITOR_BASE CFG_FLASH_BASE | |
204 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ | |
205 | ||
206 | /* | |
207 | * For booting Linux, the board info and command line data | |
208 | * have to be in the first 8 MB of memory, since this is | |
209 | * the maximum mapped by the Linux kernel during initialization. | |
210 | */ | |
211 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ | |
212 | ||
213 | /*----------------------------------------------------------------------- | |
214 | * FLASH organization | |
215 | */ | |
216 | #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ | |
217 | #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ | |
218 | ||
219 | #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ | |
220 | #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ | |
221 | ||
222 | #define CFG_ENV_IS_IN_FLASH 1 | |
223 | #define CFG_ENV_OFFSET 0x40000 /* Offset of Environment */ | |
224 | #define CFG_ENV_SECT_SIZE 0x20000 /* Total Size of Environment sector */ | |
225 | #define CFG_ENV_SIZE 0x4000 /* Used Size of Environment sector */ | |
226 | ||
227 | /*----------------------------------------------------------------------- | |
228 | * Cache Configuration | |
229 | */ | |
230 | #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ | |
231 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
232 | #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ | |
233 | #endif | |
234 | ||
235 | /*----------------------------------------------------------------------- | |
236 | * SYPCR - System Protection Control 11-9 | |
237 | * SYPCR can only be written once after reset! | |
238 | *----------------------------------------------------------------------- | |
239 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze | |
240 | */ | |
241 | #if defined(CONFIG_WATCHDOG) | |
242 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ | |
243 | SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) | |
244 | #else | |
245 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) | |
246 | #endif | |
247 | ||
248 | /*----------------------------------------------------------------------- | |
249 | * SIUMCR - SIU Module Configuration 11-6 | |
250 | *----------------------------------------------------------------------- | |
251 | * PCMCIA config., multi-function pin tri-state | |
252 | */ | |
ce23b153 | 253 | #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) |
ce23b153 WD |
254 | |
255 | /*----------------------------------------------------------------------- | |
256 | * TBSCR - Time Base Status and Control 11-26 | |
257 | *----------------------------------------------------------------------- | |
258 | * Clear Reference Interrupt Status, Timebase freezing enabled | |
259 | */ | |
260 | #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE) | |
261 | ||
262 | /*----------------------------------------------------------------------- | |
263 | * RTCSC - Real-Time Clock Status and Control Register 11-27 | |
264 | *----------------------------------------------------------------------- | |
265 | */ | |
266 | #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) | |
267 | ||
268 | /*----------------------------------------------------------------------- | |
269 | * PISCR - Periodic Interrupt Status and Control 11-31 | |
270 | *----------------------------------------------------------------------- | |
271 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled | |
272 | */ | |
273 | #define CFG_PISCR (PISCR_PS | PISCR_PITF) | |
274 | ||
275 | /*----------------------------------------------------------------------- | |
276 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 | |
277 | *----------------------------------------------------------------------- | |
278 | * Reset PLL lock status sticky bit, timer expired status bit and timer | |
279 | * interrupt status bit | |
280 | * | |
281 | * If this is a 80 MHz CPU, set PLL multiplication factor to 5 (5*16=80)! | |
282 | */ | |
283 | #ifdef CONFIG_80MHz /* for 80 MHz, we use a 16 MHz clock * 5 */ | |
284 | #define CFG_PLPRCR \ | |
285 | ( (5-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST ) | |
286 | #else /* up to 50 MHz we use a 1:1 clock */ | |
287 | #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) | |
288 | #endif /* CONFIG_80MHz */ | |
289 | ||
290 | /*----------------------------------------------------------------------- | |
291 | * SCCR - System Clock and reset Control Register 15-27 | |
292 | *----------------------------------------------------------------------- | |
293 | * Set clock output, timebase and RTC source and divider, | |
294 | * power management and some other internal clocks | |
295 | */ | |
296 | #define SCCR_MASK SCCR_EBDF11 | |
297 | #define CFG_SCCR (SCCR_TBS | \ | |
298 | SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ | |
299 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ | |
300 | SCCR_DFALCD00) | |
301 | ||
302 | /*----------------------------------------------------------------------- | |
303 | * PCMCIA stuff | |
304 | *----------------------------------------------------------------------- | |
305 | * | |
306 | */ | |
307 | #define CFG_PCMCIA_MEM_ADDR (0xE0000000) | |
308 | #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 ) | |
309 | #define CFG_PCMCIA_DMA_ADDR (0xE4000000) | |
310 | #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 ) | |
311 | #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000) | |
312 | #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 ) | |
313 | #define CFG_PCMCIA_IO_ADDR (0xEC000000) | |
314 | #define CFG_PCMCIA_IO_SIZE ( 64 << 20 ) | |
315 | ||
316 | /*----------------------------------------------------------------------- | |
317 | * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter) | |
318 | *----------------------------------------------------------------------- | |
319 | */ | |
320 | ||
321 | #if 1 | |
322 | #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */ | |
323 | ||
324 | #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */ | |
325 | #undef CONFIG_IDE_LED /* LED for ide not supported */ | |
326 | #undef CONFIG_IDE_RESET /* reset for ide not supported */ | |
327 | ||
328 | #define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */ | |
329 | #define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */ | |
330 | ||
331 | #define CFG_ATA_IDE0_OFFSET 0x0000 | |
332 | ||
333 | #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR | |
334 | ||
335 | /* Offset for data I/O */ | |
336 | #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320) | |
337 | ||
338 | /* Offset for normal register accesses */ | |
339 | #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320) | |
340 | ||
341 | /* Offset for alternate registers */ | |
342 | #define CFG_ATA_ALT_OFFSET 0x0100 | |
343 | #endif | |
344 | ||
345 | /*----------------------------------------------------------------------- | |
346 | * | |
347 | *----------------------------------------------------------------------- | |
348 | * | |
349 | */ | |
3b57fe0a | 350 | #define CFG_DER 0 |
ce23b153 WD |
351 | |
352 | /* | |
353 | * Init Memory Controller: | |
354 | * | |
355 | * BR0/1 and OR0/1 (FLASH) | |
356 | */ | |
357 | ||
358 | #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ | |
359 | ||
360 | /* used to re-map FLASH both when starting from SRAM or FLASH: | |
361 | * restrict access enough to keep SRAM working (if any) | |
362 | * but not too much to meddle with FLASH accesses | |
363 | */ | |
364 | #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */ | |
365 | #define CFG_PRELIM_OR_AM 0xFF000000 /* OR addr mask */ | |
366 | ||
367 | /* | |
368 | * FLASH timing: | |
369 | */ | |
370 | #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_SCY_7_CLK | OR_BI) | |
371 | ||
372 | #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH) | |
373 | #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) | |
374 | #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V ) | |
375 | ||
376 | ||
377 | /* | |
4a6fd34b | 378 | * BR2 and OR2 (SDRAM) |
ce23b153 WD |
379 | * |
380 | */ | |
4a6fd34b | 381 | #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */ |
ce23b153 WD |
382 | #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ |
383 | ||
4a6fd34b | 384 | #define CFG_PRELIM_OR2_AM 0xF8000000 /* OR addr mask */ |
ce23b153 WD |
385 | |
386 | /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ | |
387 | #define CFG_OR_TIMING_SDRAM (OR_ACS_DIV1 | OR_CSNT_SAM | \ | |
388 | OR_SCY_0_CLK | OR_G5LS) | |
389 | ||
4a6fd34b WD |
390 | #define CFG_OR2_PRELIM (CFG_PRELIM_OR2_AM | CFG_OR_TIMING_SDRAM ) |
391 | #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | |
392 | ||
393 | /* | |
394 | * BR3 and OR3 (CAN Controller) | |
395 | */ | |
396 | #ifdef CONFIG_CAN_DRIVER | |
397 | #define CFG_CAN_BASE 0xC0000000 /* CAN base address */ | |
398 | #define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */ | |
399 | #define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA |OR_BI) | |
400 | #define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \ | |
401 | BR_PS_8 | BR_MS_UPMB | BR_V) | |
402 | #endif /* CONFIG_CAN_DRIVER */ | |
ce23b153 WD |
403 | |
404 | ||
405 | /* | |
406 | * Memory Periodic Timer Prescaler | |
407 | * | |
408 | * The Divider for PTA (refresh timer) configuration is based on an | |
409 | * example SDRAM configuration (64 MBit, one bank). The adjustment to | |
410 | * the number of chip selects (NCS) and the actually needed refresh | |
411 | * rate is done by setting MPTPR. | |
412 | * | |
413 | * PTA is calculated from | |
414 | * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) | |
415 | * | |
416 | * gclk CPU clock (not bus clock!) | |
417 | * Trefresh Refresh cycle * 4 (four word bursts used) | |
418 | * | |
419 | * 4096 Rows from SDRAM example configuration | |
420 | * 1000 factor s -> ms | |
421 | * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration | |
422 | * 4 Number of refresh cycles per period | |
423 | * 64 Refresh cycle in ms per number of rows | |
424 | * -------------------------------------------- | |
425 | * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 | |
426 | * | |
427 | * 50 MHz => 50.000.000 / Divider = 98 | |
428 | * 66 Mhz => 66.000.000 / Divider = 129 | |
429 | * 80 Mhz => 80.000.000 / Divider = 156 | |
430 | */ | |
431 | #if defined(CONFIG_80MHz) | |
432 | #define CFG_MAMR_PTA 156 | |
433 | #elif defined(CONFIG_66MHz) | |
434 | #define CFG_MAMR_PTA 129 | |
435 | #else /* 50 MHz */ | |
436 | #define CFG_MAMR_PTA 98 | |
437 | #endif /*CONFIG_??MHz */ | |
438 | ||
439 | /* | |
440 | * For 16 MBit, refresh rates could be 31.3 us | |
441 | * (= 64 ms / 2K = 125 / quad bursts). | |
442 | * For a simpler initialization, 15.6 us is used instead. | |
443 | * | |
444 | * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks | |
445 | * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank | |
446 | */ | |
447 | #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ | |
448 | #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ | |
449 | ||
450 | /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ | |
451 | #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ | |
452 | #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ | |
453 | ||
454 | /* | |
455 | * MAMR settings for SDRAM | |
456 | */ | |
457 | ||
458 | /* 8 column SDRAM */ | |
459 | #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ | |
460 | MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ | |
461 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) | |
462 | /* 9 column SDRAM */ | |
463 | #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ | |
464 | MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ | |
465 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) | |
466 | ||
467 | ||
468 | /* | |
469 | * Internal Definitions | |
470 | * | |
471 | * Boot Flags | |
472 | */ | |
473 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ | |
474 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ | |
475 | ||
476 | #endif /* __CONFIG_H */ |