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1/*
2 * (C) Copyright 2000
3 * Murray Jensen <Murray.Jensen@cmst.csiro.au>
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 * Config header file for Cogent platform using an MPC8xx CPU module
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_MPC8260 1 /* This is an MPC8260 CPU */
37#define CONFIG_COGENT 1 /* using Cogent Modular Architecture */
38
39/* Cogent Modular Architecture options */
40#define CONFIG_CMA282 1 /* ...on a CMA282 CPU module */
41#define CONFIG_CMA111 1 /* ...on a CMA111 motherboard */
42
43/*
44 * select serial console configuration
45 *
46 * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
47 * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
48 * for SCC).
49 *
50 * if CONFIG_CONS_NONE is defined, then the serial console routines must
51 * defined elsewhere (for example, on the cogent platform, there are serial
52 * ports on the motherboard which are used for the serial console - see
53 * cogent/cma101/serial.[ch]).
54 */
55#define CONFIG_CONS_ON_SMC /* define if console on SMC */
56#undef CONFIG_CONS_ON_SCC /* define if console on SCC */
57#undef CONFIG_CONS_NONE /* define if console on something else*/
58#define CONFIG_CONS_INDEX 1 /* which serial channel for console */
59#undef CONFIG_CONS_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
60#define CONFIG_CONS_EXTC_RATE 3686400 /* SMC/SCC ext clk rate in Hz */
61#define CONFIG_CONS_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
62
63/*
64 * select ethernet configuration
65 *
66 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
67 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
68 * for FCC)
69 *
70 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
71 * defined elsewhere (as for the console), or CFG_CMD_NET must be removed
72 * from CONFIG_COMMANDS to remove support for networking.
73 */
74#undef CONFIG_ETHER_ON_SCC /* define if ether on SCC */
75#undef CONFIG_ETHER_ON_FCC /* define if ether on FCC */
76#define CONFIG_ETHER_NONE /* define if ether on something else */
77#define CONFIG_ETHER_INDEX 1 /* which channel for ether */
78
79/* system clock rate (CLKIN) - equal to the 60x and local bus speed */
80#define CONFIG_8260_CLKIN 66666666 /* in Hz */
81
82#if defined(CONFIG_CONS_NONE) || defined(CONFIG_CONS_USE_EXTC)
83#define CONFIG_BAUDRATE 230400
84#else
85#define CONFIG_BAUDRATE 9600
86#endif
87
88#define CONFIG_COMMANDS ((CONFIG_CMD_DFL|CFG_CMD_KGDB)&~CFG_CMD_NET)
89
90/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
91#include <cmd_confdefs.h>
92
93#ifdef DEBUG
94#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
95#else
96#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
97#endif
98#define CONFIG_BOOTCOMMAND "bootm 04080000 04200000" /* autoboot command*/
99
100#define CONFIG_BOOTARGS "root=/dev/ram rw"
101
102#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
103#define CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */
104#undef CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */
105#undef CONFIG_KGDB_NONE /* define if kgdb on something else */
106#define CONFIG_KGDB_INDEX 2 /* which serial channel for kgdb */
107#define CONFIG_KGDB_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
108#define CONFIG_KGDB_EXTC_RATE 3686400 /* serial ext clk rate in Hz */
109#define CONFIG_KGDB_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
110# if defined(CONFIG_KGDB_NONE) || defined(CONFIG_KGDB_USE_EXTC)
111#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port at */
112# else
113#define CONFIG_KGDB_BAUDRATE 9600 /* speed to run kgdb serial port at */
114# endif
115#endif
116
117#undef CONFIG_WATCHDOG /* disable platform specific watchdog */
118
119/*
120 * Miscellaneous configurable options
121 */
122#define CFG_LONGHELP /* undef to save memory */
123#define CFG_PROMPT "=> " /* Monitor Command Prompt */
124#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
125#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
126#else
127#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
128#endif
129#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
130#define CFG_MAXARGS 16 /* max number of command args */
131#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
132
133#define CFG_MEMTEST_START 0x00400000 /* memtest works on */
134#define CFG_MEMTEST_END 0x01c00000 /* 4 ... 28 MB in DRAM */
135
136#define CFG_LOAD_ADDR 0x100000 /* default load address */
137
138#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
139
140#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 }
141
142/*
143 * Low Level Configuration Settings
144 * (address mappings, register initial values, etc.)
145 * You should know what you are doing if you make changes here.
146 */
147
148/*-----------------------------------------------------------------------
149 * Low Level Cogent settings
150 * if CFG_CMA_CONS_SERIAL is defined, make sure the 8260 CPM serial is not.
151 * also, make sure CONFIG_CONS_INDEX is still defined - the index will be
152 * 1 for serialA, 2 for serialB, 3 for ser2A, 4 for ser2B
153 * (second 2 for CMA120 only)
154 */
155#define CFG_CMA_MB_BASE 0x00000000 /* base of m/b address space */
156
157#include <configs/cogent_common.h>
158
159#ifdef CONFIG_CONS_NONE
160#define CFG_CMA_CONS_SERIAL /* use Cogent motherboard serial for console */
161#endif
162#define CFG_CMA_LCD_HEARTBEAT /* define for sec rotator in lcd corner */
163
164#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
165/*
166 * flash exists on the motherboard
167 * set these four according to TOP dipsw:
168 * TOP on => ..._FLLOW_... (boot EPROM space is high so FLASH is low )
169 * TOP off => ..._FLHIGH_... (boot EPROM space is low so FLASH is high)
170 */
171#define CMA_MB_FLASH_EXEC_BASE CMA_MB_FLLOW_EXEC_BASE
172#define CMA_MB_FLASH_EXEC_SIZE CMA_MB_FLLOW_EXEC_SIZE
173#define CMA_MB_FLASH_RDWR_BASE CMA_MB_FLLOW_RDWR_BASE
174#define CMA_MB_FLASH_RDWR_SIZE CMA_MB_FLLOW_RDWR_SIZE
175#endif
176#define CMA_MB_FLASH_BASE CMA_MB_FLASH_EXEC_BASE
177#define CMA_MB_FLASH_SIZE CMA_MB_FLASH_EXEC_SIZE
178
179/*-----------------------------------------------------------------------
180 * Hard Reset Configuration Words
181 *
182 * if you change bits in the HRCW, you must also change the CFG_*
183 * defines for the various registers affected by the HRCW e.g. changing
184 * HRCW_DPPCxx requires you to also change CFG_SIUMCR.
185 */
186#define CFG_HRCW_MASTER (HRCW_EBM|HRCW_BPS10|HRCW_L2CPC10|HRCW_DPPC11|\
187 HRCW_ISB100|HRCW_MMR11|HRCW_MODCK_H0101)
188/* no slaves so just duplicate the master hrcw */
189#define CFG_HRCW_SLAVE1 CFG_HRCW_MASTER
190#define CFG_HRCW_SLAVE2 CFG_HRCW_MASTER
191#define CFG_HRCW_SLAVE3 CFG_HRCW_MASTER
192#define CFG_HRCW_SLAVE4 CFG_HRCW_MASTER
193#define CFG_HRCW_SLAVE5 CFG_HRCW_MASTER
194#define CFG_HRCW_SLAVE6 CFG_HRCW_MASTER
195#define CFG_HRCW_SLAVE7 CFG_HRCW_MASTER
196
197/*-----------------------------------------------------------------------
198 * Internal Memory Mapped Register
199 */
200#define CFG_IMMR 0xF0000000
201
202/*-----------------------------------------------------------------------
203 * Definitions for initial stack pointer and data area (in DPRAM)
204 */
205#define CFG_INIT_RAM_ADDR CFG_IMMR
206#define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
207#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
208#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
209#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
210
211/*-----------------------------------------------------------------------
212 * Start addresses for the final memory configuration
213 * (Set up by the startup code)
214 * Please note that CFG_SDRAM_BASE _must_ start at 0
215 */
216#define CFG_SDRAM_BASE CMA_MB_RAM_BASE
217#ifdef CONFIG_CMA302
218#define CFG_FLASH_BASE CMA_MB_SLOT2_BASE /* cma302 in slot 2 */
219#else
220#define CFG_FLASH_BASE CMA_MB_FLASH_BASE /* flash on m/b */
221#endif
222#define CFG_MONITOR_BASE TEXT_BASE
223#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
224#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc()*/
225
226/*
227 * For booting Linux, the board info and command line data
228 * have to be in the first 8 MB of memory, since this is
229 * the maximum mapped by the Linux kernel during initialization.
230 */
231#define CFG_BOOTMAPSZ (8 << 20) /* Initial Mem map for Linux*/
232
233/*-----------------------------------------------------------------------
234 * FLASH organization
235 */
236#define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */
237#define CFG_MAX_FLASH_SECT 67 /* max num of sects on one chip */
238
239#define CFG_FLASH_ERASE_TOUT 120000 /* Flash Erase Timeout (in ms) */
240#define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */
241
242#define CFG_ENV_IS_IN_FLASH 1
243#define CFG_ENV_ADDR CFG_FLASH_BASE /* Addr of Environment Sector */
244#ifdef CONFIG_CMA302
245#define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */
246#define CFG_ENV_SECT_SIZE (512*1024) /* see README - env sect real size */
247#else
248#define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
249#endif
250
251/*-----------------------------------------------------------------------
252 * Cache Configuration
253 */
254#define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
255#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
256# define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value*/
257#endif
258
259/*-----------------------------------------------------------------------
260 * HIDx - Hardware Implementation-dependent Registers 2-11
261 *-----------------------------------------------------------------------
262 * HID0 also contains cache control - initially enable both caches and
263 * invalidate contents, then the final state leaves only the instruction
264 * cache enabled. Note that Power-On and Hard reset invalidate the caches,
265 * but Soft reset does not.
266 *
267 * HID1 has only read-only information - nothing to set.
268 */
269#define CFG_HID0_INIT (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI|\
270 HID0_IFEM|HID0_ABE)
271#define CFG_HID0_FINAL (HID0_ICE|HID0_IFEM|HID0_ABE)
272#define CFG_HID2 0
273
274/*-----------------------------------------------------------------------
275 * RMR - Reset Mode Register 5-5
276 *-----------------------------------------------------------------------
277 * turn on Checkstop Reset Enable
278 */
279#define CFG_RMR RMR_CSRE
280
281/*-----------------------------------------------------------------------
282 * BCR - Bus Configuration 4-25
283 *-----------------------------------------------------------------------
284 */
285#define CFG_BCR BCR_EBM
286
287/*-----------------------------------------------------------------------
288 * SIUMCR - SIU Module Configuration 4-31
289 *-----------------------------------------------------------------------
290 */
291#define CFG_SIUMCR (SIUMCR_DPPC11|SIUMCR_L2CPC10|SIUMCR_MMR11)
292
293/*-----------------------------------------------------------------------
294 * SYPCR - System Protection Control 4-35
295 * SYPCR can only be written once after reset!
296 *-----------------------------------------------------------------------
297 * Watchdog & Bus Monitor Timer max, 60x Bus Monitor enable
298 */
299#if defined(CONFIG_WATCHDOG)
300#define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
301 SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE)
302#else
303#define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
304 SYPCR_SWRI|SYPCR_SWP)
305#endif /* CONFIG_WATCHDOG */
306
307/*-----------------------------------------------------------------------
308 * TMCNTSC - Time Counter Status and Control 4-40
309 *-----------------------------------------------------------------------
310 * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
311 * and enable Time Counter
312 */
313#define CFG_TMCNTSC (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE)
314
315/*-----------------------------------------------------------------------
316 * PISCR - Periodic Interrupt Status and Control 4-42
317 *-----------------------------------------------------------------------
318 * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
319 * Periodic timer
320 */
321#define CFG_PISCR (PISCR_PS|PISCR_PTF|PISCR_PTE)
322
323/*-----------------------------------------------------------------------
324 * SCCR - System Clock Control 9-8
325 *-----------------------------------------------------------------------
326 * Ensure DFBRG is Divide by 16
327 */
328#define CFG_SCCR (SCCR_DFBRG01)
329
330/*-----------------------------------------------------------------------
331 * RCCR - RISC Controller Configuration 13-7
332 *-----------------------------------------------------------------------
333 */
334#define CFG_RCCR 0
335
336#if defined(CONFIG_CMA282)
337
338/*
339 * Init Memory Controller:
340 *
341 * According to the Cogent manual, only CS0 and CS2 are used - CS0 for EPROM
342 * and CS2 for (optional) local bus RAM on the CPU module.
343 *
344 * Note the motherboard address space (256 Mbyte in size) is connected
345 * to the 60x Bus and is located starting at address 0. The Hard Reset
346 * Configuration Word should put the 60x Bus into External Bus Mode, since
347 * we dont set up any memory controller maps for it (see BCR[EBM], 4-26).
348 *
349 * (the *_SIZE vars must be a power of 2)
350 */
351
352#define CFG_CMA_CS0_BASE TEXT_BASE /* EPROM */
353#define CFG_CMA_CS0_SIZE (1 << 20)
354#if 0
355#define CFG_CMA_CS2_BASE 0x10000000 /* Local Bus SDRAM */
356#define CFG_CMA_CS2_SIZE (16 << 20)
357#endif
358
359/*
360 * CS0 maps the EPROM on the cpu module
361 * Set it for 10 wait states, address CFG_MONITOR_BASE and size 1M
362 *
363 * Note: We must have already transferred control to the final location
364 * of the EPROM before these are used, because when BR0/OR0 are set, the
365 * mirror of the eprom at any other addresses will disappear.
366 */
367
368/* base address = CFG_CMA_CS0_BASE, 16-bit, no parity, r/o, gpcm (60x bus) */
369#define CFG_BR0_PRELIM ((CFG_CMA_CS0_BASE&BRx_BA_MSK)|BRx_PS_16|BRx_WP|BRx_V)
370/* mask size CFG_CMA_CS0_SIZE, csneg 1/4 early, adr-to-cs 1/2, 10-wait states */
371#define CFG_OR0_PRELIM (P2SZ_TO_AM(CFG_CMA_CS0_SIZE)|\
372 ORxG_CSNT|ORxG_ACS_DIV2|ORxG_SCY_10_CLK)
373
374/*
375 * CS2 enables the Local Bus SDRAM on the CPU Module
376 *
377 * Will leave this unset for the moment, because a) my CPU module has no
378 * SDRAM installed (it is optional); and b) it will require programming
379 * one of the UPMs in SDRAM mode - not a trivial job, and hard to get right
380 * if you can't test it.
381 */
382
383#if 0
384/* base address = CFG_CMA_CS2_BASE, 32-bit, no parity, ??? */
385#define CFG_BR0_PRELIM ((CFG_CMA_CS2_BASE&BRx_BA_MSK)|BRx_PS_32|/*???*/|BRx_V)
386/* mask size CFG_CMA_CS2_SIZE, CS time normal, ??? */
387#define CFG_OR2_PRELIM ((~(CFG_CMA_CS2_SIZE-1)&ORx_AM_MSK)|/*???*/)
388#endif
389
390#endif
391
392/*
393 * Internal Definitions
394 *
395 * Boot Flags
396 */
397#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH*/
398#define BOOTFLAG_WARM 0x02 /* Software reboot */
399
400#endif /* __CONFIG_H */