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 */
98 * Low Level Configuration Settings
99 * (address mappings, register initial values, etc.)
100 * You should know what you are doing if you make changes here.
102 /*-----------------------------------------------------------------------
103 * Internal Memory Mapped Register
105 #define CONFIG_SYS_IMMR 0xFF000000
107 /*-----------------------------------------------------------------------
108 * Definitions for initial stack pointer and data area (in DPRAM)
110 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
111 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
112 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
113 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
115 /*-----------------------------------------------------------------------
116 * Start addresses for the final memory configuration
117 * (Set up by the startup code)
118 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
120 #define CONFIG_SYS_SDRAM_BASE 0x00000000
121 #define CONFIG_SYS_FLASH_BASE 0x40000000
122 #define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */
123 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
124 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
127 * For booting Linux, the board info and command line data
128 * have to be in the first 8 MB of memory, since this is
129 * the maximum mapped by the Linux kernel during initialization.
131 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
133 /*-----------------------------------------------------------------------
136 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
137 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
139 #define CONFIG_SYS_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
140 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
142 #define CONFIG_ENV_IS_IN_FLASH 1
143 /* This is a litlebit wasteful, but one sector is 128kb and we have to
144 * assigne a whole sector for the environment, so that we can safely
145 * erase and write it without disturbing the boot sector
147 #define CONFIG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */
148 #define CONFIG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
150 /*-----------------------------------------------------------------------
151 * Cache Configuration
153 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
154 #if defined(CONFIG_CMD_KGDB)
155 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
157 #define CONFIG_SYS_DELAYED_ICACHE 1 /* enable ICache not before
161 /*-----------------------------------------------------------------------
162 * SYPCR - System Protection Control 11-9
163 * SYPCR can only be written once after reset!
164 *-----------------------------------------------------------------------
165 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
167 #ifdef CONFIG_WATCHDOG
168 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP)
170 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF)
173 /*-----------------------------------------------------------------------
174 * SIUMCR - SIU Module Configuration 11-6
175 *-----------------------------------------------------------------------
176 * PCMCIA config., multi-function pin tri-state
178 #define CONFIG_SYS_PRE_SIUMCR (SIUMCR_DBGC11 | SIUMCR_MPRE | \
179 SIUMCR_MLRC01 | SIUMCR_GB5E)
180 #define CONFIG_SYS_SIUMCR (CONFIG_SYS_PRE_SIUMCR | SIUMCR_DLK)
182 /*-----------------------------------------------------------------------
183 * TBSCR - Time Base Status and Control 11-26
184 *-----------------------------------------------------------------------
185 * Clear Reference Interrupt Status, Timebase freezing enabled
187 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
189 /*-----------------------------------------------------------------------
190 * RTCSC - Real-Time Clock Status and Control Register 11-27
191 *-----------------------------------------------------------------------
193 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
195 /*-----------------------------------------------------------------------
196 * PISCR - Periodic Interrupt Status and Control 11-31
197 *-----------------------------------------------------------------------
198 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
200 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
202 /*-----------------------------------------------------------------------
203 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
204 *-----------------------------------------------------------------------
205 * Reset PLL lock status sticky bit, timer expired status bit and timer
206 * interrupt status bit miltiplier of 0x00b i.e. operation clock is
207 * 4MHz * (0x00b+1) = 4MHz * 12 = 48MHz
209 #define CONFIG_SYS_PLPRCR (0x00b00000 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
211 /*-----------------------------------------------------------------------
212 * SCCR - System Clock and reset Control Register 15-27
213 *-----------------------------------------------------------------------
214 * Set clock output, timebase and RTC source and divider,
215 * power management and some other internal clocks
217 #define SCCR_MASK SCCR_EBDF11
218 #define CONFIG_SYS_SCCR ( SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
219 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
222 #define CONFIG_SYS_DER 0
225 * In the Flaga DM we have:
226 * Flash on BR0/OR0/CS0a at 0x40000000
227 * Display on BR1/OR1/CS1 at 0x20000000
228 * SDRAM on BR2/OR2/CS2 at 0x00000000
230 * DSP1 on BR4/OR4/CS4 at 0x80000000
231 * DSP2 on BR5/OR5/CS5 at 0xa0000000
233 * For now we just configure the Flash and the SDRAM and leave the others
237 #define CONFIG_SYS_FLASH_PROTECTION 0
239 #define FLASH_BASE0 0x40000000 /* FLASH bank #0 */
241 /* used to re-map FLASH both when starting from SRAM or FLASH:
242 * restrict access enough to keep SRAM working (if any)
243 * but not too much to meddle with FLASH accesses
245 #define CONFIG_SYS_OR_AM 0xff000000 /* OR addr mask */
246 #define CONFIG_SYS_OR_ATM 0x00006000
248 /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
249 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | \
250 OR_SCY_3_CLK | OR_TRLX | OR_EHTR )
252 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_ATM | CONFIG_SYS_OR_TIMING_FLASH)
253 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0 & BR_BA_MSK) | BR_PS_16 | BR_V )
256 * BR2 and OR2 (SDRAM)
259 #define SDRAM_BASE2 0x00000000 /* SDRAM bank #0 */
260 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
262 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
263 #define CONFIG_SYS_OR_TIMING_SDRAM ( 0x00000800 )
265 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM)
266 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2 & BR_BA_MSK) | BR_MS_UPMA | BR_V )
268 #define CONFIG_SYS_BR2 CONFIG_SYS_BR2_PRELIM
269 #define CONFIG_SYS_OR2 CONFIG_SYS_OR2_PRELIM
272 * MAMR settings for SDRAM
274 #define CONFIG_SYS_MAMR_48_SDR (CONFIG_SYS_MAMR_PTA | MAMR_WLFA_1X | MAMR_RLFA_1X \
278 * Memory Periodic Timer Prescaler
281 /* periodic timer for refresh */
282 #define CONFIG_SYS_MAMR_PTA 0x0F000000
287 * We do not wan't preliminary setup of the DSP, anyway we need the
288 * UPMB setup correctly before we can access the DSP.
291 #define DSP_BASE 0x80000000
293 #define CONFIG_SYS_OR4 ( OR_AM_MSK | OR_CSNT_SAM | OR_BI | OR_G5LS)
294 #define CONFIG_SYS_BR4 ( (DSP_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_UPMB | BR_V )
296 #endif /* __CONFIG_H */