3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
9 * board/config.h - configuration options, board specific
16 * High Level Configuration Options
20 #define CONFIG_MPC823 1 /* This is a MPC823 CPU */
21 #define CONFIG_FLAGADM 1 /* ...on a FLAGA DM */
22 #define CONFIG_8xx_GCLK_FREQ 48000000 /*48MHz*/
24 #define CONFIG_SYS_TEXT_BASE 0x40000000
26 #undef CONFIG_8xx_CONS_SMC1 /* Console is on SMC1 */
27 #define CONFIG_8xx_CONS_SMC2 1
28 #undef CONFIG_8xx_CONS_NONE
30 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
31 #define CONFIG_BOOTDELAY 3 /* autoboot after 5 seconds */
33 #undef CONFIG_CLOCKS_IN_MHZ
36 #define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp"
37 #define CONFIG_BOOTCOMMAND \
38 "setenv bootargs root=/dev/ram ip=off panic=1;" \
39 "bootm 40040000 400e0000"
41 #define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp panic=1"
42 #define CONFIG_BOOTCOMMAND "bootp 0x400000; bootm 0x400000"
45 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
46 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
48 /*#define CONFIG_WATCHDOG*/ /* watchdog enabled */
49 #undef CONFIG_WATCHDOG /* watchdog disabled */
54 #define CONFIG_BOOTP_SUBNETMASK
55 #define CONFIG_BOOTP_GATEWAY
56 #define CONFIG_BOOTP_HOSTNAME
57 #define CONFIG_BOOTP_BOOTPATH
58 #define CONFIG_BOOTP_BOOTFILESIZE
62 * Command line configuration.
65 #define CONFIG_CMD_BDI
66 #define CONFIG_CMD_IMI
67 #define CONFIG_CMD_CACHE
68 #define CONFIG_CMD_MEMORY
69 #define CONFIG_CMD_FLASH
70 #define CONFIG_CMD_LOADB
71 #define CONFIG_CMD_LOADS
72 #define CONFIG_CMD_SAVEENV
73 #define CONFIG_CMD_REGINFO
74 #define CONFIG_CMD_IMMAP
75 #define CONFIG_CMD_NET
79 * Miscellaneous configurable options
81 #define CONFIG_SYS_LONGHELP /* undef to save memory */
82 #define CONFIG_SYS_PROMPT "EEG> " /* Monitor Command Prompt */
83 #if defined(CONFIG_CMD_KGDB)
84 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
86 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
88 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
89 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
90 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
92 #define CONFIG_SYS_MEMTEST_START 0x0100000 /* memtest works on */
93 #define CONFIG_SYS_MEMTEST_END 0x0f00000 /* 1 ... 15 MB in DRAM */
95 #define CONFIG_SYS_LOAD_ADDR 0x40040000 /* default load address */
97 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
100 * Low Level Configuration Settings
101 * (address mappings, register initial values, etc.)
102 * You should know what you are doing if you make changes here.
104 /*-----------------------------------------------------------------------
105 * Internal Memory Mapped Register
107 #define CONFIG_SYS_IMMR 0xFF000000
109 /*-----------------------------------------------------------------------
110 * Definitions for initial stack pointer and data area (in DPRAM)
112 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
113 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
114 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
115 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
117 /*-----------------------------------------------------------------------
118 * Start addresses for the final memory configuration
119 * (Set up by the startup code)
120 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
122 #define CONFIG_SYS_SDRAM_BASE 0x00000000
123 #define CONFIG_SYS_FLASH_BASE 0x40000000
124 #define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */
125 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
126 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
129 * For booting Linux, the board info and command line data
130 * have to be in the first 8 MB of memory, since this is
131 * the maximum mapped by the Linux kernel during initialization.
133 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
135 /*-----------------------------------------------------------------------
138 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
139 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
141 #define CONFIG_SYS_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
142 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
144 #define CONFIG_ENV_IS_IN_FLASH 1
145 /* This is a litlebit wasteful, but one sector is 128kb and we have to
146 * assigne a whole sector for the environment, so that we can safely
147 * erase and write it without disturbing the boot sector
149 #define CONFIG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */
150 #define CONFIG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
152 /*-----------------------------------------------------------------------
153 * Cache Configuration
155 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
156 #if defined(CONFIG_CMD_KGDB)
157 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
159 #define CONFIG_SYS_DELAYED_ICACHE 1 /* enable ICache not before
163 /*-----------------------------------------------------------------------
164 * SYPCR - System Protection Control 11-9
165 * SYPCR can only be written once after reset!
166 *-----------------------------------------------------------------------
167 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
169 #ifdef CONFIG_WATCHDOG
170 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP)
172 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF)
175 /*-----------------------------------------------------------------------
176 * SIUMCR - SIU Module Configuration 11-6
177 *-----------------------------------------------------------------------
178 * PCMCIA config., multi-function pin tri-state
180 #define CONFIG_SYS_PRE_SIUMCR (SIUMCR_DBGC11 | SIUMCR_MPRE | \
181 SIUMCR_MLRC01 | SIUMCR_GB5E)
182 #define CONFIG_SYS_SIUMCR (CONFIG_SYS_PRE_SIUMCR | SIUMCR_DLK)
184 /*-----------------------------------------------------------------------
185 * TBSCR - Time Base Status and Control 11-26
186 *-----------------------------------------------------------------------
187 * Clear Reference Interrupt Status, Timebase freezing enabled
189 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
191 /*-----------------------------------------------------------------------
192 * RTCSC - Real-Time Clock Status and Control Register 11-27
193 *-----------------------------------------------------------------------
195 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
197 /*-----------------------------------------------------------------------
198 * PISCR - Periodic Interrupt Status and Control 11-31
199 *-----------------------------------------------------------------------
200 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
202 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
204 /*-----------------------------------------------------------------------
205 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
206 *-----------------------------------------------------------------------
207 * Reset PLL lock status sticky bit, timer expired status bit and timer
208 * interrupt status bit miltiplier of 0x00b i.e. operation clock is
209 * 4MHz * (0x00b+1) = 4MHz * 12 = 48MHz
211 #define CONFIG_SYS_PLPRCR (0x00b00000 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
213 /*-----------------------------------------------------------------------
214 * SCCR - System Clock and reset Control Register 15-27
215 *-----------------------------------------------------------------------
216 * Set clock output, timebase and RTC source and divider,
217 * power management and some other internal clocks
219 #define SCCR_MASK SCCR_EBDF11
220 #define CONFIG_SYS_SCCR ( SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
221 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
224 #define CONFIG_SYS_DER 0
227 * In the Flaga DM we have:
228 * Flash on BR0/OR0/CS0a at 0x40000000
229 * Display on BR1/OR1/CS1 at 0x20000000
230 * SDRAM on BR2/OR2/CS2 at 0x00000000
232 * DSP1 on BR4/OR4/CS4 at 0x80000000
233 * DSP2 on BR5/OR5/CS5 at 0xa0000000
235 * For now we just configure the Flash and the SDRAM and leave the others
239 #define CONFIG_SYS_FLASH_PROTECTION 0
241 #define FLASH_BASE0 0x40000000 /* FLASH bank #0 */
243 /* used to re-map FLASH both when starting from SRAM or FLASH:
244 * restrict access enough to keep SRAM working (if any)
245 * but not too much to meddle with FLASH accesses
247 #define CONFIG_SYS_OR_AM 0xff000000 /* OR addr mask */
248 #define CONFIG_SYS_OR_ATM 0x00006000
250 /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
251 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | \
252 OR_SCY_3_CLK | OR_TRLX | OR_EHTR )
254 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_ATM | CONFIG_SYS_OR_TIMING_FLASH)
255 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0 & BR_BA_MSK) | BR_PS_16 | BR_V )
258 * BR2 and OR2 (SDRAM)
261 #define SDRAM_BASE2 0x00000000 /* SDRAM bank #0 */
262 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
264 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
265 #define CONFIG_SYS_OR_TIMING_SDRAM ( 0x00000800 )
267 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM)
268 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2 & BR_BA_MSK) | BR_MS_UPMA | BR_V )
270 #define CONFIG_SYS_BR2 CONFIG_SYS_BR2_PRELIM
271 #define CONFIG_SYS_OR2 CONFIG_SYS_OR2_PRELIM
274 * MAMR settings for SDRAM
276 #define CONFIG_SYS_MAMR_48_SDR (CONFIG_SYS_MAMR_PTA | MAMR_WLFA_1X | MAMR_RLFA_1X \
280 * Memory Periodic Timer Prescaler
283 /* periodic timer for refresh */
284 #define CONFIG_SYS_MAMR_PTA 0x0F000000
289 * We do not wan't preliminary setup of the DSP, anyway we need the
290 * UPMB setup correctly before we can access the DSP.
293 #define DSP_BASE 0x80000000
295 #define CONFIG_SYS_OR4 ( OR_AM_MSK | OR_CSNT_SAM | OR_BI | OR_G5LS)
296 #define CONFIG_SYS_BR4 ( (DSP_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_UPMB | BR_V )
298 #endif /* __CONFIG_H */