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75dc29eb | 1 | /* |
29f8f58f | 2 | * (C) Copyright 2000-2008 |
75dc29eb WD |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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_MPC850 1 /* This is a MPC850 CPU */ | |
37 | #define CONFIG_FPS850L 1 /* ...on a FingerPrint Sensor */ | |
38 | ||
2ae18241 WD |
39 | #define CONFIG_SYS_TEXT_BASE 0x40000000 |
40 | ||
75dc29eb | 41 | #define CONFIG_8xx_CONS_SMC2 1 /* Console is on SMC2 */ |
3cb7a480 WD |
42 | #define CONFIG_SYS_SMC_RXBUFLEN 128 |
43 | #define CONFIG_SYS_MAXIDLE 10 | |
eb6da805 | 44 | #define CONFIG_BAUDRATE 115200 |
75dc29eb | 45 | |
eb6da805 WD |
46 | #define CONFIG_BOOTCOUNT_LIMIT |
47 | ||
48 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ | |
75dc29eb WD |
49 | |
50 | #define CONFIG_BOARD_TYPES 1 /* support board types */ | |
51 | ||
32bf3d14 | 52 | #define CONFIG_PREBOOT "echo;echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;echo" |
eb6da805 WD |
53 | |
54 | #undef CONFIG_BOOTARGS | |
55 | ||
56 | #define CONFIG_EXTRA_ENV_SETTINGS \ | |
57 | "netdev=eth0\0" \ | |
58 | "nfsargs=setenv bootargs root=/dev/nfs rw " \ | |
59 | "nfsroot=${serverip}:${rootpath}\0" \ | |
60 | "ramargs=setenv bootargs root=/dev/ram rw\0" \ | |
61 | "addip=setenv bootargs ${bootargs} " \ | |
62 | "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \ | |
63 | ":${hostname}:${netdev}:off panic=1\0" \ | |
64 | "flash_nfs=run nfsargs addip;" \ | |
65 | "bootm ${kernel_addr}\0" \ | |
66 | "flash_self=run ramargs addip;" \ | |
67 | "bootm ${kernel_addr} ${ramdisk_addr}\0" \ | |
68 | "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \ | |
69 | "rootpath=/opt/eldk/ppc_8xx\0" \ | |
29f8f58f WD |
70 | "hostname=FPS850L\0" \ |
71 | "bootfile=FPS850L/uImage\0" \ | |
eb6da805 WD |
72 | "fdt_addr=40040000\0" \ |
73 | "kernel_addr=40060000\0" \ | |
74 | "ramdisk_addr=40200000\0" \ | |
29f8f58f WD |
75 | "u-boot=FPS850L/u-image.bin\0" \ |
76 | "load=tftp 200000 ${u-boot}\0" \ | |
77 | "update=prot off 40000000 +${filesize};" \ | |
78 | "era 40000000 +${filesize};" \ | |
79 | "cp.b 200000 40000000 ${filesize};" \ | |
80 | "sete filesize;save\0" \ | |
eb6da805 WD |
81 | "" |
82 | #define CONFIG_BOOTCOMMAND "run flash_self" | |
75dc29eb WD |
83 | |
84 | #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ | |
6d0f6bcf | 85 | #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */ |
75dc29eb WD |
86 | |
87 | #undef CONFIG_WATCHDOG /* watchdog disabled */ | |
88 | ||
5d2ebe1b JL |
89 | /* |
90 | * BOOTP options | |
91 | */ | |
92 | #define CONFIG_BOOTP_SUBNETMASK | |
93 | #define CONFIG_BOOTP_GATEWAY | |
94 | #define CONFIG_BOOTP_HOSTNAME | |
95 | #define CONFIG_BOOTP_BOOTPATH | |
96 | #define CONFIG_BOOTP_BOOTFILESIZE | |
97 | #define CONFIG_BOOTP_SUBNETMASK | |
98 | #define CONFIG_BOOTP_GATEWAY | |
99 | #define CONFIG_BOOTP_HOSTNAME | |
100 | #define CONFIG_BOOTP_NISDOMAIN | |
101 | #define CONFIG_BOOTP_BOOTPATH | |
102 | #define CONFIG_BOOTP_DNS | |
103 | #define CONFIG_BOOTP_DNS2 | |
104 | #define CONFIG_BOOTP_SEND_HOSTNAME | |
105 | #define CONFIG_BOOTP_NTPSERVER | |
106 | #define CONFIG_BOOTP_TIMEOFFSET | |
75dc29eb | 107 | |
eb6da805 | 108 | #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ |
75dc29eb | 109 | |
60a0876b JL |
110 | /* |
111 | * Command line configuration. | |
112 | */ | |
113 | #include <config_cmd_default.h> | |
114 | ||
eb6da805 WD |
115 | #define CONFIG_CMD_ASKENV |
116 | #define CONFIG_CMD_DATE | |
117 | #define CONFIG_CMD_DHCP | |
29f8f58f | 118 | #define CONFIG_CMD_JFFS2 |
eb6da805 WD |
119 | #define CONFIG_CMD_NFS |
120 | #define CONFIG_CMD_SNTP | |
60a0876b | 121 | |
75dc29eb | 122 | |
29f8f58f WD |
123 | #define CONFIG_NETCONSOLE |
124 | ||
125 | ||
75dc29eb WD |
126 | /* |
127 | * Miscellaneous configurable options | |
128 | */ | |
6d0f6bcf JCPV |
129 | #define CONFIG_SYS_LONGHELP /* undef to save memory */ |
130 | #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */ | |
eb6da805 WD |
131 | |
132 | #define CONFIG_CMDLINE_EDITING 1 /* add command line history */ | |
6d0f6bcf JCPV |
133 | #define CONFIG_SYS_HUSH_PARSER 1 /* Use the HUSH parser */ |
134 | #ifdef CONFIG_SYS_HUSH_PARSER | |
135 | #define CONFIG_SYS_PROMPT_HUSH_PS2 "> " | |
eb6da805 WD |
136 | #endif |
137 | ||
60a0876b | 138 | #if defined(CONFIG_CMD_KGDB) |
6d0f6bcf | 139 | #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */ |
75dc29eb | 140 | #else |
6d0f6bcf | 141 | #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ |
75dc29eb | 142 | #endif |
6d0f6bcf JCPV |
143 | #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */ |
144 | #define CONFIG_SYS_MAXARGS 16 /* max number of command args */ | |
145 | #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */ | |
75dc29eb | 146 | |
6d0f6bcf JCPV |
147 | #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */ |
148 | #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ | |
75dc29eb | 149 | |
6d0f6bcf | 150 | #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */ |
75dc29eb | 151 | |
6d0f6bcf | 152 | #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */ |
75dc29eb | 153 | |
6d0f6bcf | 154 | #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } |
75dc29eb WD |
155 | |
156 | /* | |
157 | * Low Level Configuration Settings | |
158 | * (address mappings, register initial values, etc.) | |
159 | * You should know what you are doing if you make changes here. | |
160 | */ | |
161 | /*----------------------------------------------------------------------- | |
162 | * Internal Memory Mapped Register | |
163 | */ | |
6d0f6bcf | 164 | #define CONFIG_SYS_IMMR 0xFFF00000 |
75dc29eb WD |
165 | |
166 | /*----------------------------------------------------------------------- | |
167 | * Definitions for initial stack pointer and data area (in DPRAM) | |
168 | */ | |
6d0f6bcf | 169 | #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR |
553f0982 | 170 | #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */ |
25ddd1fb | 171 | #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE) |
6d0f6bcf | 172 | #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET |
75dc29eb WD |
173 | |
174 | /*----------------------------------------------------------------------- | |
175 | * Start addresses for the final memory configuration | |
176 | * (Set up by the startup code) | |
6d0f6bcf | 177 | * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0 |
75dc29eb | 178 | */ |
6d0f6bcf JCPV |
179 | #define CONFIG_SYS_SDRAM_BASE 0x00000000 |
180 | #define CONFIG_SYS_FLASH_BASE 0x40000000 | |
181 | #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ | |
182 | #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE | |
183 | #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ | |
75dc29eb WD |
184 | |
185 | /* | |
186 | * For booting Linux, the board info and command line data | |
187 | * have to be in the first 8 MB of memory, since this is | |
188 | * the maximum mapped by the Linux kernel during initialization. | |
189 | */ | |
6d0f6bcf | 190 | #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ |
46a414dc | 191 | |
75dc29eb WD |
192 | /*----------------------------------------------------------------------- |
193 | * FLASH organization | |
194 | */ | |
75dc29eb | 195 | |
29f8f58f | 196 | /* use CFI flash driver */ |
6d0f6bcf | 197 | #define CONFIG_SYS_FLASH_CFI 1 /* Flash is CFI conformant */ |
00b1883a | 198 | #define CONFIG_FLASH_CFI_DRIVER 1 /* Use the common driver */ |
6d0f6bcf JCPV |
199 | #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE+flash_info[0].size } |
200 | #define CONFIG_SYS_FLASH_EMPTY_INFO | |
201 | #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1 | |
202 | #define CONFIG_SYS_MAX_FLASH_BANKS 2 /* max number of memory banks */ | |
203 | #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */ | |
75dc29eb | 204 | |
5a1aceb0 | 205 | #define CONFIG_ENV_IS_IN_FLASH 1 |
0e8d1586 JCPV |
206 | #define CONFIG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */ |
207 | #define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */ | |
75dc29eb | 208 | |
46a414dc | 209 | /* Address and size of Redundant Environment Sector */ |
0e8d1586 JCPV |
210 | #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET+CONFIG_ENV_SIZE) |
211 | #define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE) | |
46a414dc | 212 | |
6d0f6bcf | 213 | #define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ |
29f8f58f | 214 | |
7c803be2 WD |
215 | #define CONFIG_MISC_INIT_R /* Make sure to remap flashes correctly */ |
216 | ||
29f8f58f WD |
217 | /*----------------------------------------------------------------------- |
218 | * Dynamic MTD partition support | |
219 | */ | |
68d7d651 | 220 | #define CONFIG_CMD_MTDPARTS |
942556a9 SR |
221 | #define CONFIG_MTD_DEVICE /* needed for mtdparts commands */ |
222 | #define CONFIG_FLASH_CFI_MTD | |
29f8f58f WD |
223 | #define MTDIDS_DEFAULT "nor0=TQM8xxL-0" |
224 | ||
225 | #define MTDPARTS_DEFAULT "mtdparts=TQM8xxL-0:256k(u-boot)," \ | |
226 | "128k(dtb)," \ | |
227 | "1664k(kernel)," \ | |
228 | "2m(rootfs)," \ | |
cd82919e | 229 | "4m(data)" |
29f8f58f | 230 | |
75dc29eb WD |
231 | /*----------------------------------------------------------------------- |
232 | * Hardware Information Block | |
233 | */ | |
6d0f6bcf JCPV |
234 | #define CONFIG_SYS_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */ |
235 | #define CONFIG_SYS_HWINFO_SIZE 0x00000040 /* size of HW Info block */ | |
236 | #define CONFIG_SYS_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */ | |
75dc29eb WD |
237 | |
238 | /*----------------------------------------------------------------------- | |
239 | * Cache Configuration | |
240 | */ | |
6d0f6bcf | 241 | #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ |
60a0876b | 242 | #if defined(CONFIG_CMD_KGDB) |
6d0f6bcf | 243 | #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */ |
75dc29eb WD |
244 | #endif |
245 | ||
246 | /*----------------------------------------------------------------------- | |
247 | * SYPCR - System Protection Control 11-9 | |
248 | * SYPCR can only be written once after reset! | |
249 | *----------------------------------------------------------------------- | |
250 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze | |
251 | */ | |
252 | #if defined(CONFIG_WATCHDOG) | |
6d0f6bcf | 253 | #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ |
75dc29eb WD |
254 | SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) |
255 | #else | |
6d0f6bcf | 256 | #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) |
75dc29eb WD |
257 | #endif |
258 | ||
259 | /*----------------------------------------------------------------------- | |
260 | * SIUMCR - SIU Module Configuration 11-6 | |
261 | *----------------------------------------------------------------------- | |
262 | * PCMCIA config., multi-function pin tri-state | |
263 | */ | |
6d0f6bcf | 264 | #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) |
75dc29eb WD |
265 | |
266 | /*----------------------------------------------------------------------- | |
267 | * TBSCR - Time Base Status and Control 11-26 | |
268 | *----------------------------------------------------------------------- | |
269 | * Clear Reference Interrupt Status, Timebase freezing enabled | |
270 | */ | |
6d0f6bcf | 271 | #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) |
75dc29eb WD |
272 | |
273 | /*----------------------------------------------------------------------- | |
274 | * RTCSC - Real-Time Clock Status and Control Register 11-27 | |
275 | *----------------------------------------------------------------------- | |
276 | */ | |
6d0f6bcf | 277 | #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) |
75dc29eb WD |
278 | |
279 | /*----------------------------------------------------------------------- | |
280 | * PISCR - Periodic Interrupt Status and Control 11-31 | |
281 | *----------------------------------------------------------------------- | |
282 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled | |
283 | */ | |
6d0f6bcf | 284 | #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF) |
75dc29eb WD |
285 | |
286 | /*----------------------------------------------------------------------- | |
287 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 | |
288 | *----------------------------------------------------------------------- | |
289 | * Reset PLL lock status sticky bit, timer expired status bit and timer | |
290 | * interrupt status bit - leave PLL multiplication factor unchanged ! | |
291 | */ | |
6d0f6bcf | 292 | #define CONFIG_SYS_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) |
75dc29eb WD |
293 | |
294 | /*----------------------------------------------------------------------- | |
295 | * SCCR - System Clock and reset Control Register 15-27 | |
296 | *----------------------------------------------------------------------- | |
297 | * Set clock output, timebase and RTC source and divider, | |
298 | * power management and some other internal clocks | |
299 | */ | |
300 | #define SCCR_MASK SCCR_EBDF11 | |
6d0f6bcf | 301 | #define CONFIG_SYS_SCCR (SCCR_TBS | \ |
75dc29eb WD |
302 | SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ |
303 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ | |
304 | SCCR_DFALCD00) | |
305 | ||
306 | /*----------------------------------------------------------------------- | |
307 | * PCMCIA stuff | |
308 | *----------------------------------------------------------------------- | |
309 | * | |
310 | */ | |
6d0f6bcf JCPV |
311 | #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000) |
312 | #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 ) | |
313 | #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000) | |
314 | #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 ) | |
315 | #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000) | |
316 | #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 ) | |
317 | #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000) | |
318 | #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 ) | |
75dc29eb WD |
319 | |
320 | /*----------------------------------------------------------------------- | |
321 | * | |
322 | *----------------------------------------------------------------------- | |
323 | * | |
324 | */ | |
6d0f6bcf | 325 | #define CONFIG_SYS_DER 0 |
75dc29eb WD |
326 | |
327 | /* | |
328 | * Init Memory Controller: | |
329 | * | |
330 | * BR0/1 and OR0/1 (FLASH) | |
331 | */ | |
332 | ||
333 | #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ | |
334 | #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */ | |
335 | ||
336 | /* used to re-map FLASH both when starting from SRAM or FLASH: | |
337 | * restrict access enough to keep SRAM working (if any) | |
338 | * but not too much to meddle with FLASH accesses | |
339 | */ | |
6d0f6bcf JCPV |
340 | #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */ |
341 | #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */ | |
75dc29eb | 342 | |
46a414dc WD |
343 | /* |
344 | * FLASH timing: | |
345 | */ | |
6d0f6bcf | 346 | #define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \ |
46a414dc | 347 | OR_SCY_3_CLK | OR_EHTR | OR_BI) |
75dc29eb | 348 | |
6d0f6bcf JCPV |
349 | #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH) |
350 | #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH) | |
351 | #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V ) | |
75dc29eb | 352 | |
6d0f6bcf JCPV |
353 | #define CONFIG_SYS_OR1_REMAP CONFIG_SYS_OR0_REMAP |
354 | #define CONFIG_SYS_OR1_PRELIM CONFIG_SYS_OR0_PRELIM | |
355 | #define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V ) | |
75dc29eb WD |
356 | |
357 | /* | |
358 | * BR2/3 and OR2/3 (SDRAM) | |
359 | * | |
360 | */ | |
361 | #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */ | |
362 | #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */ | |
363 | #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ | |
364 | ||
365 | /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ | |
6d0f6bcf | 366 | #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000A00 |
75dc29eb | 367 | |
6d0f6bcf JCPV |
368 | #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM ) |
369 | #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | |
75dc29eb | 370 | |
6d0f6bcf JCPV |
371 | #define CONFIG_SYS_OR3_PRELIM CONFIG_SYS_OR2_PRELIM |
372 | #define CONFIG_SYS_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | |
75dc29eb WD |
373 | |
374 | /* | |
375 | * Memory Periodic Timer Prescaler | |
46a414dc WD |
376 | * |
377 | * The Divider for PTA (refresh timer) configuration is based on an | |
378 | * example SDRAM configuration (64 MBit, one bank). The adjustment to | |
379 | * the number of chip selects (NCS) and the actually needed refresh | |
380 | * rate is done by setting MPTPR. | |
381 | * | |
382 | * PTA is calculated from | |
383 | * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) | |
384 | * | |
385 | * gclk CPU clock (not bus clock!) | |
386 | * Trefresh Refresh cycle * 4 (four word bursts used) | |
387 | * | |
388 | * 4096 Rows from SDRAM example configuration | |
389 | * 1000 factor s -> ms | |
390 | * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration | |
391 | * 4 Number of refresh cycles per period | |
392 | * 64 Refresh cycle in ms per number of rows | |
393 | * -------------------------------------------- | |
394 | * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 | |
395 | * | |
396 | * 50 MHz => 50.000.000 / Divider = 98 | |
397 | * 66 Mhz => 66.000.000 / Divider = 129 | |
398 | * 80 Mhz => 80.000.000 / Divider = 156 | |
75dc29eb WD |
399 | */ |
400 | ||
6d0f6bcf JCPV |
401 | #define CONFIG_SYS_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64)) |
402 | #define CONFIG_SYS_MAMR_PTA 98 | |
75dc29eb | 403 | |
46a414dc WD |
404 | /* |
405 | * For 16 MBit, refresh rates could be 31.3 us | |
406 | * (= 64 ms / 2K = 125 / quad bursts). | |
407 | * For a simpler initialization, 15.6 us is used instead. | |
408 | * | |
6d0f6bcf JCPV |
409 | * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks |
410 | * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank | |
46a414dc | 411 | */ |
6d0f6bcf JCPV |
412 | #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ |
413 | #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ | |
75dc29eb WD |
414 | |
415 | /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ | |
6d0f6bcf JCPV |
416 | #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ |
417 | #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ | |
75dc29eb WD |
418 | |
419 | /* | |
420 | * MAMR settings for SDRAM | |
421 | */ | |
422 | ||
423 | /* 8 column SDRAM */ | |
6d0f6bcf | 424 | #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
75dc29eb WD |
425 | MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ |
426 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) | |
427 | /* 9 column SDRAM */ | |
6d0f6bcf | 428 | #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
75dc29eb WD |
429 | MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ |
430 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) | |
431 | ||
7026ead0 HS |
432 | /* pass open firmware flat tree */ |
433 | #define CONFIG_OF_LIBFDT 1 | |
434 | #define CONFIG_OF_BOARD_SETUP 1 | |
435 | #define CONFIG_HWCONFIG 1 | |
436 | ||
75dc29eb | 437 | #endif /* __CONFIG_H */ |