2 * (C) Copyright 2001-2005
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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_MPC860 1
37 #define CONFIG_AMX860 1
39 #undef CONFIG_8xx_CONS_SMC1 /* Console is on SCC2 */
40 #undef CONFIG_8xx_CONS_SMC2
41 #define CONFIG_8xx_CONS_SCC2 1
42 #undef CONFIG_8xx_CONS_NONE
43 #define CONFIG_BAUDRATE 9600
44 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
46 #define MPC8XX_FACT 10 /* Multiply by 10 */
47 #define MPC8XX_XIN 5000000 /* 5 MHz in */
48 #define MPC8XX_HZ ((MPC8XX_XIN) * (MPC8XX_FACT))
51 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
53 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
56 #define CONFIG_BOOTCOMMAND \
58 "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
59 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off;" \
60 "bootm" /* autoboot command */
62 #undef CONFIG_BOOTARGS
64 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
65 #undef CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */
66 #define CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */
67 #undef CONFIG_KGDB_NONE /* define if kgdb on something else */
68 #define CONFIG_KGDB_INDEX 1 /* which serial channel for kgdb */
69 #define CONFIG_KGDB_BAUDRATE 9600 /* speed to run kgdb serial port at */
73 #undef CONFIG_WATCHDOG /* watchdog disabled */
75 #define CONFIG_SCC1_ENET 1 /* use SCC1 ethernet */
77 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
79 #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
85 #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
87 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
88 #include <cmd_confdefs.h>
91 * Miscellaneous configurable options
93 #define CFG_LONGHELP /* undef to save memory */
94 #define CFG_PROMPT "=> " /* Monitor Command Prompt */
95 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
96 #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
98 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
100 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
101 #define CFG_MAXARGS 16 /* max number of command args */
102 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
104 #define CFG_MEMTEST_START 0x0100000 /* memtest works on */
105 #define CFG_MEMTEST_END 0x0200000 /* 1 ... 4 MB in DRAM */
107 #define CFG_LOAD_ADDR 0x00100000
109 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
111 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
114 * Low Level Configuration Settings
115 * (address mappings, register initial values, etc.)
116 * You should know what you are doing if you make changes here.
119 /*-----------------------------------------------------------------------
120 * Internal Memory Mapped Register
122 #define CFG_IMMR 0xFF000000
124 /*-----------------------------------------------------------------------
125 * Definitions for initial stack pointer and data area (in DPRAM)
127 #define CFG_INIT_RAM_ADDR CFG_IMMR
128 #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
129 #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
130 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
131 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
133 /*-----------------------------------------------------------------------
134 * Start addresses for the final memory configuration
135 * (Set up by the startup code)
136 * Please note that CFG_SDRAM_BASE _must_ start at 0
138 #define CFG_SDRAM_BASE 0x00000000
139 #define CFG_FLASH_BASE 0x40000000
141 #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
143 #define CFG_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
145 #define CFG_MONITOR_BASE CFG_FLASH_BASE
146 #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
149 * U-Boot for AMX board supports two types of memory extension
150 * modules: one that provides 4 MB flash memory, and another one with
153 * The flash module swaps the CS0 and CS1 signals: if the module is
154 * installed, CS0 is connected to Flash on the module and CS1 is
155 * connected to the on-board Flash. This means that you must intall
156 * U-Boot when the Flash module is plugged in, if you plan to use
159 * To enable support for the DRAM extension card, CONFIG_AMX_RAM_EXT
160 * must be defined. The DRAM module uses CS1.
162 * Only one of these modules may be installed at a time. If U-Boot
163 * is compiled with the CONFIG_AMX_RAM_EXT option set, it will not
164 * work if the Flash extension module is installed instead of the
167 #define CONFIG_AMX_RAM_EXT /* 16Mb Ext. DRAM module support */
170 * For booting Linux, the board info and command line data
171 * have to be in the first 8 MB of memory, since this is
172 * the maximum mapped by the Linux kernel during initialization.
174 * Use 4 MB for without and 8 MB with 16 MB DRAM extension module
175 * (CONFIG_AMX_RAM_EXT)
177 #ifdef CONFIG_AMX_RAM_EXT
178 # define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
180 # define CFG_BOOTMAPSZ (4 << 20) /* Initial Memory map for Linux */
182 /*-----------------------------------------------------------------------
185 #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
186 #define CFG_MAX_FLASH_SECT 35 /* max number of sectors on one chip */
188 #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
189 #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
191 #define CFG_ENV_IS_IN_FLASH 1
192 #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
193 #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
195 /*-----------------------------------------------------------------------
196 * Cache Configuration
198 #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
199 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
200 #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
203 /*-----------------------------------------------------------------------
204 * SYPCR - System Protection Control 11-9
205 * SYPCR can only be written once after reset!
206 *-----------------------------------------------------------------------
207 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
209 #if defined(CONFIG_WATCHDOG)
210 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
211 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
213 #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
216 /*-----------------------------------------------------------------------
217 * SIUMCR - SIU Module Configuration 11-6
218 *-----------------------------------------------------------------------
219 * PCMCIA config., multi-function pin tri-state
221 #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
223 /*-----------------------------------------------------------------------
224 * TBSCR - Time Base Status and Control 11-26
225 *-----------------------------------------------------------------------
226 * Clear Reference Interrupt Status, Timebase freezing enabled
228 #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE)
230 /*-----------------------------------------------------------------------
231 * PISCR - Periodic Interrupt Status and Control 11-31
232 *-----------------------------------------------------------------------
233 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
235 #define CFG_PISCR (PISCR_PS | PISCR_PITF)
237 /*-----------------------------------------------------------------------
238 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
239 *-----------------------------------------------------------------------
240 * set the PLL, the low-power modes and the reset control (15-29)
242 #define CFG_PLPRCR (((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) | \
243 PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
245 /*-----------------------------------------------------------------------
246 * SCCR - System Clock and reset Control Register 15-27
247 *-----------------------------------------------------------------------
248 * Set clock output, timebase and RTC source and divider,
249 * power management and some other internal clocks
251 #define SCCR_MASK SCCR_EBDF11
252 #define CFG_SCCR (SCCR_TBS|SCCR_COM00|SCCR_DFSYNC00|SCCR_DFBRG00|SCCR_DFNL000|SCCR_DFNH000|SCCR_DFLCD000|SCCR_DFALCD00)
257 * Init Memory Controller:
259 * BR0/1 and OR0/1 (FLASH)
262 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
263 #ifndef CONFIG_AMX_RAM_EXT
264 #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #1 */
267 #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
268 #define CFG_PRELIM_OR_AM 0xFFC00000 /* OR addr mask */
270 /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 0 */
271 /* 0x00000800 0x00000400 0x00000100 0x00000030 0x00000004 */
272 #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_5_CLK | OR_TRLX)
274 #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
276 #define CFG_OR0_PRELIM 0xFFC00954 /* Real values for the board */
277 #define CFG_BR0_PRELIM 0x40000001 /* Real values for the board */
279 #ifndef CONFIG_AMX_RAM_EXT
280 #define CFG_OR1_REMAP CFG_OR0_REMAP
281 #define CFG_OR1_PRELIM 0xFFC00954 /* Real values for the board */
282 #define CFG_BR1_PRELIM 0x60000001 /* Real values for the board */
285 /* DSP ("Glue") Xilinx */
286 #define CFG_OR6_PRELIM 0xFFFF8000 /* 32kB, 15 waits, cs after addr, no bursts */
287 #define CFG_BR6_PRELIM 0x60000401 /* use GPCM for CS generation, 8 bit port */
290 * Internal Definitions
294 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
295 #define BOOTFLAG_WARM 0x02 /* Software reboot */
297 #endif /* __CONFIG_H */