5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * board/config.h - configuration options, board specific
32 * High Level Configuration Options
36 #define CONFIG_MPC850 1 /* This is a MPC850 CPU */
37 #define CONFIG_FPS850L 1 /* ...on a FingerPrint Sensor */
39 #undef CONFIG_8xx_CONS_SMC1
40 #define CONFIG_8xx_CONS_SMC2 1 /* Console is on SMC2 */
41 #undef CONFIG_8xx_CONS_NONE
42 #define CONFIG_BAUDRATE 19200
44 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
46 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
48 #define CONFIG_BOOTCOMMAND "bootm 40020000" /* autoboot command */
50 #define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */
52 #define CONFIG_BOARD_TYPES 1 /* support board types */
54 #define CONFIG_BOOTARGS "root=/dev/nfs rw " \
55 "nfsroot=10.0.0.2:/opt/eldk/ppc_8xx " \
56 "nfsaddrs=10.0.0.99:10.0.0.2"
58 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
59 #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
61 #undef CONFIG_WATCHDOG /* watchdog disabled */
63 #define CONFIG_BOOTP_MASK CONFIG_BOOTP_ALL
67 * Command line configuration.
69 #include <config_cmd_default.h>
71 #undef CONFIG_CMD_CONSOLE
73 #undef CONFIG_CMD_LOADS
74 #undef CONFIG_CMD_LOADB
75 #undef CONFIG_CMD_CACHE
79 * Miscellaneous configurable options
81 #define CFG_LONGHELP /* undef to save memory */
82 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
83 #if defined(CONFIG_CMD_KGDB)
84 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
86 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
88 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
89 #define CFG_MAXARGS 16 /* max number of command args */
90 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
92 #define CFG_MEMTEST_START 0x0400000 /* memtest works on */
93 #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
95 #define CFG_LOAD_ADDR 0x100000 /* default load address */
97 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
99 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
102 * Low Level Configuration Settings
103 * (address mappings, register initial values, etc.)
104 * You should know what you are doing if you make changes here.
106 /*-----------------------------------------------------------------------
107 * Internal Memory Mapped Register
109 #define CFG_IMMR 0xFFF00000
111 /*-----------------------------------------------------------------------
112 * Definitions for initial stack pointer and data area (in DPRAM)
114 #define CFG_INIT_RAM_ADDR CFG_IMMR
115 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
116 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
117 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
118 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
120 /*-----------------------------------------------------------------------
121 * Start addresses for the final memory configuration
122 * (Set up by the startup code)
123 * Please note that CFG_SDRAM_BASE _must_ start at 0
125 #define CFG_SDRAM_BASE 0x00000000
126 #define CFG_FLASH_BASE 0x40000000
127 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
128 #define CFG_MONITOR_BASE CFG_FLASH_BASE
129 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
132 * For booting Linux, the board info and command line data
133 * have to be in the first 8 MB of memory, since this is
134 * the maximum mapped by the Linux kernel during initialization.
136 #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
138 /*-----------------------------------------------------------------------
141 #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
142 #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
144 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
145 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
147 #define CFG_ENV_IS_IN_FLASH 1
148 #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
149 #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
151 /* Address and size of Redundant Environment Sector */
152 #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SIZE)
153 #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
155 /*-----------------------------------------------------------------------
156 * Hardware Information Block
158 #define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */
159 #define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */
160 #define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */
162 /*-----------------------------------------------------------------------
163 * Cache Configuration
165 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
166 #if defined(CONFIG_CMD_KGDB)
167 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
170 /*-----------------------------------------------------------------------
171 * SYPCR - System Protection Control 11-9
172 * SYPCR can only be written once after reset!
173 *-----------------------------------------------------------------------
174 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
176 #if defined(CONFIG_WATCHDOG)
177 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
178 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
180 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
183 /*-----------------------------------------------------------------------
184 * SIUMCR - SIU Module Configuration 11-6
185 *-----------------------------------------------------------------------
186 * PCMCIA config., multi-function pin tri-state
188 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
190 /*-----------------------------------------------------------------------
191 * TBSCR - Time Base Status and Control 11-26
192 *-----------------------------------------------------------------------
193 * Clear Reference Interrupt Status, Timebase freezing enabled
195 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
197 /*-----------------------------------------------------------------------
198 * RTCSC - Real-Time Clock Status and Control Register 11-27
199 *-----------------------------------------------------------------------
201 #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
203 /*-----------------------------------------------------------------------
204 * PISCR - Periodic Interrupt Status and Control 11-31
205 *-----------------------------------------------------------------------
206 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
208 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
210 /*-----------------------------------------------------------------------
211 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
212 *-----------------------------------------------------------------------
213 * Reset PLL lock status sticky bit, timer expired status bit and timer
214 * interrupt status bit - leave PLL multiplication factor unchanged !
216 #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
218 /*-----------------------------------------------------------------------
219 * SCCR - System Clock and reset Control Register 15-27
220 *-----------------------------------------------------------------------
221 * Set clock output, timebase and RTC source and divider,
222 * power management and some other internal clocks
224 #define SCCR_MASK SCCR_EBDF11
225 #define CFG_SCCR (SCCR_TBS | \
226 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
227 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
230 /*-----------------------------------------------------------------------
232 *-----------------------------------------------------------------------
235 #define CFG_PCMCIA_MEM_ADDR (0xE0000000)
236 #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
237 #define CFG_PCMCIA_DMA_ADDR (0xE4000000)
238 #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
239 #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
240 #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
241 #define CFG_PCMCIA_IO_ADDR (0xEC000000)
242 #define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
244 /*-----------------------------------------------------------------------
246 *-----------------------------------------------------------------------
252 * Init Memory Controller:
254 * BR0/1 and OR0/1 (FLASH)
257 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
258 #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */
260 /* used to re-map FLASH both when starting from SRAM or FLASH:
261 * restrict access enough to keep SRAM working (if any)
262 * but not too much to meddle with FLASH accesses
264 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
265 #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
270 #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
271 OR_SCY_3_CLK | OR_EHTR | OR_BI)
273 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
274 #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
275 #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
277 #define CFG_OR1_REMAP CFG_OR0_REMAP
278 #define CFG_OR1_PRELIM CFG_OR0_PRELIM
279 #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
282 * BR2/3 and OR2/3 (SDRAM)
285 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
286 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
287 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
289 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
290 #define CFG_OR_TIMING_SDRAM 0x00000A00
292 #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
293 #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
295 #define CFG_OR3_PRELIM CFG_OR2_PRELIM
296 #define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
299 * Memory Periodic Timer Prescaler
301 * The Divider for PTA (refresh timer) configuration is based on an
302 * example SDRAM configuration (64 MBit, one bank). The adjustment to
303 * the number of chip selects (NCS) and the actually needed refresh
304 * rate is done by setting MPTPR.
306 * PTA is calculated from
307 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
309 * gclk CPU clock (not bus clock!)
310 * Trefresh Refresh cycle * 4 (four word bursts used)
312 * 4096 Rows from SDRAM example configuration
313 * 1000 factor s -> ms
314 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
315 * 4 Number of refresh cycles per period
316 * 64 Refresh cycle in ms per number of rows
317 * --------------------------------------------
318 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
320 * 50 MHz => 50.000.000 / Divider = 98
321 * 66 Mhz => 66.000.000 / Divider = 129
322 * 80 Mhz => 80.000.000 / Divider = 156
325 #define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64))
326 #define CFG_MAMR_PTA 98
329 * For 16 MBit, refresh rates could be 31.3 us
330 * (= 64 ms / 2K = 125 / quad bursts).
331 * For a simpler initialization, 15.6 us is used instead.
333 * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
334 * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
336 #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
337 #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
339 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
340 #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
341 #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
344 * MAMR settings for SDRAM
348 #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
349 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
350 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
352 #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
353 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
354 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
358 * Internal Definitions
362 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
363 #define BOOTFLAG_WARM 0x02 /* Software reboot */
365 #endif /* __CONFIG_H */