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_MPC823 1 /* This is a MPC823 CPU */
37 #define CONFIG_FLAGADM 1 /* ...on a FLAGA DM */
38 #define CONFIG_8xx_GCLK_FREQ 48000000 /*48MHz*/
40 #define CONFIG_SYS_TEXT_BASE 0x40000000
42 #undef CONFIG_8xx_CONS_SMC1 /* Console is on SMC1 */
43 #define CONFIG_8xx_CONS_SMC2 1
44 #undef CONFIG_8xx_CONS_NONE
46 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
47 #define CONFIG_BOOTDELAY 3 /* autoboot after 5 seconds */
49 #undef CONFIG_CLOCKS_IN_MHZ
52 #define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp"
53 #define CONFIG_BOOTCOMMAND \
54 "setenv bootargs root=/dev/ram ip=off panic=1;" \
55 "bootm 40040000 400e0000"
57 #define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp panic=1"
58 #define CONFIG_BOOTCOMMAND "bootp 0x400000; bootm 0x400000"
61 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
62 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
64 /*#define CONFIG_WATCHDOG*/ /* watchdog enabled */
65 #undef CONFIG_WATCHDOG /* watchdog disabled */
70 #define CONFIG_BOOTP_SUBNETMASK
71 #define CONFIG_BOOTP_GATEWAY
72 #define CONFIG_BOOTP_HOSTNAME
73 #define CONFIG_BOOTP_BOOTPATH
74 #define CONFIG_BOOTP_BOOTFILESIZE
78 * Command line configuration.
81 #define CONFIG_CMD_BDI
82 #define CONFIG_CMD_IMI
83 #define CONFIG_CMD_CACHE
84 #define CONFIG_CMD_MEMORY
85 #define CONFIG_CMD_FLASH
86 #define CONFIG_CMD_LOADB
87 #define CONFIG_CMD_LOADS
88 #define CONFIG_CMD_SAVEENV
89 #define CONFIG_CMD_REGINFO
90 #define CONFIG_CMD_IMMAP
91 #define CONFIG_CMD_NET
95 * Miscellaneous configurable options
97 #define CONFIG_SYS_LONGHELP /* undef to save memory */
98 #define CONFIG_SYS_PROMPT "EEG> " /* Monitor Command Prompt */
99 #if defined(CONFIG_CMD_KGDB)
100 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
102 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
104 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
105 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
106 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
108 #define CONFIG_SYS_MEMTEST_START 0x0100000 /* memtest works on */
109 #define CONFIG_SYS_MEMTEST_END 0x0f00000 /* 1 ... 15 MB in DRAM */
111 #define CONFIG_SYS_LOAD_ADDR 0x40040000 /* default load address */
113 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
116 * Low Level Configuration Settings
117 * (address mappings, register initial values, etc.)
118 * You should know what you are doing if you make changes here.
120 /*-----------------------------------------------------------------------
121 * Internal Memory Mapped Register
123 #define CONFIG_SYS_IMMR 0xFF000000
125 /*-----------------------------------------------------------------------
126 * Definitions for initial stack pointer and data area (in DPRAM)
128 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
129 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
130 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
131 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
133 /*-----------------------------------------------------------------------
134 * Start addresses for the final memory configuration
135 * (Set up by the startup code)
136 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
138 #define CONFIG_SYS_SDRAM_BASE 0x00000000
139 #define CONFIG_SYS_FLASH_BASE 0x40000000
140 #define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */
141 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
142 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
145 * For booting Linux, the board info and command line data
146 * have to be in the first 8 MB of memory, since this is
147 * the maximum mapped by the Linux kernel during initialization.
149 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
151 /*-----------------------------------------------------------------------
154 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
155 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
157 #define CONFIG_SYS_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
158 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
160 #define CONFIG_ENV_IS_IN_FLASH 1
161 /* This is a litlebit wasteful, but one sector is 128kb and we have to
162 * assigne a whole sector for the environment, so that we can safely
163 * erase and write it without disturbing the boot sector
165 #define CONFIG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */
166 #define CONFIG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
168 /*-----------------------------------------------------------------------
169 * Cache Configuration
171 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
172 #if defined(CONFIG_CMD_KGDB)
173 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
175 #define CONFIG_SYS_DELAYED_ICACHE 1 /* enable ICache not before
179 /*-----------------------------------------------------------------------
180 * SYPCR - System Protection Control 11-9
181 * SYPCR can only be written once after reset!
182 *-----------------------------------------------------------------------
183 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
185 #ifdef CONFIG_WATCHDOG
186 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP)
188 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF)
191 /*-----------------------------------------------------------------------
192 * SIUMCR - SIU Module Configuration 11-6
193 *-----------------------------------------------------------------------
194 * PCMCIA config., multi-function pin tri-state
196 #define CONFIG_SYS_PRE_SIUMCR (SIUMCR_DBGC11 | SIUMCR_MPRE | \
197 SIUMCR_MLRC01 | SIUMCR_GB5E)
198 #define CONFIG_SYS_SIUMCR (CONFIG_SYS_PRE_SIUMCR | SIUMCR_DLK)
200 /*-----------------------------------------------------------------------
201 * TBSCR - Time Base Status and Control 11-26
202 *-----------------------------------------------------------------------
203 * Clear Reference Interrupt Status, Timebase freezing enabled
205 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
207 /*-----------------------------------------------------------------------
208 * RTCSC - Real-Time Clock Status and Control Register 11-27
209 *-----------------------------------------------------------------------
211 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
213 /*-----------------------------------------------------------------------
214 * PISCR - Periodic Interrupt Status and Control 11-31
215 *-----------------------------------------------------------------------
216 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
218 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
220 /*-----------------------------------------------------------------------
221 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
222 *-----------------------------------------------------------------------
223 * Reset PLL lock status sticky bit, timer expired status bit and timer
224 * interrupt status bit miltiplier of 0x00b i.e. operation clock is
225 * 4MHz * (0x00b+1) = 4MHz * 12 = 48MHz
227 #define CONFIG_SYS_PLPRCR (0x00b00000 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
229 /*-----------------------------------------------------------------------
230 * SCCR - System Clock and reset Control Register 15-27
231 *-----------------------------------------------------------------------
232 * Set clock output, timebase and RTC source and divider,
233 * power management and some other internal clocks
235 #define SCCR_MASK SCCR_EBDF11
236 #define CONFIG_SYS_SCCR ( SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
237 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
240 #define CONFIG_SYS_DER 0
243 * In the Flaga DM we have:
244 * Flash on BR0/OR0/CS0a at 0x40000000
245 * Display on BR1/OR1/CS1 at 0x20000000
246 * SDRAM on BR2/OR2/CS2 at 0x00000000
248 * DSP1 on BR4/OR4/CS4 at 0x80000000
249 * DSP2 on BR5/OR5/CS5 at 0xa0000000
251 * For now we just configure the Flash and the SDRAM and leave the others
255 #define CONFIG_SYS_FLASH_PROTECTION 0
257 #define FLASH_BASE0 0x40000000 /* FLASH bank #0 */
259 /* used to re-map FLASH both when starting from SRAM or FLASH:
260 * restrict access enough to keep SRAM working (if any)
261 * but not too much to meddle with FLASH accesses
263 #define CONFIG_SYS_OR_AM 0xff000000 /* OR addr mask */
264 #define CONFIG_SYS_OR_ATM 0x00006000
266 /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
267 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | \
268 OR_SCY_3_CLK | OR_TRLX | OR_EHTR )
270 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_ATM | CONFIG_SYS_OR_TIMING_FLASH)
271 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0 & BR_BA_MSK) | BR_PS_16 | BR_V )
274 * BR2 and OR2 (SDRAM)
277 #define SDRAM_BASE2 0x00000000 /* SDRAM bank #0 */
278 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
280 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
281 #define CONFIG_SYS_OR_TIMING_SDRAM ( 0x00000800 )
283 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM)
284 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2 & BR_BA_MSK) | BR_MS_UPMA | BR_V )
286 #define CONFIG_SYS_BR2 CONFIG_SYS_BR2_PRELIM
287 #define CONFIG_SYS_OR2 CONFIG_SYS_OR2_PRELIM
290 * MAMR settings for SDRAM
292 #define CONFIG_SYS_MAMR_48_SDR (CONFIG_SYS_MAMR_PTA | MAMR_WLFA_1X | MAMR_RLFA_1X \
296 * Memory Periodic Timer Prescaler
299 /* periodic timer for refresh */
300 #define CONFIG_SYS_MAMR_PTA 0x0F000000
305 * We do not wan't preliminary setup of the DSP, anyway we need the
306 * UPMB setup correctly before we can access the DSP.
309 #define DSP_BASE 0x80000000
311 #define CONFIG_SYS_OR4 ( OR_AM_MSK | OR_CSNT_SAM | OR_BI | OR_G5LS)
312 #define CONFIG_SYS_BR4 ( (DSP_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_UPMB | BR_V )
314 #endif /* __CONFIG_H */