2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
9 * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
10 * U-Boot port on STx XTc 8xx board
11 * Mostly copied from Panto's NETTA2 board.
18 * High Level Configuration Options
22 #define CONFIG_MPC875 1 /* This is a MPC875 CPU */
23 #define CONFIG_STXXTC 1 /* ...on a STx XTc board */
25 #define CONFIG_SYS_TEXT_BASE 0x40F00000
27 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
28 #undef CONFIG_8xx_CONS_SMC2
29 #undef CONFIG_8xx_CONS_NONE
31 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */
33 #define CONFIG_XIN 10000000 /* 10 MHz input xtal */
35 /* Select one of few clock rates defined later in this file.
37 /* #define MPC8XX_HZ 50000000 */
38 #define MPC8XX_HZ 66666666
40 #define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ
43 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
45 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
48 #undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */
50 #undef CONFIG_BOOTARGS
51 #define CONFIG_BOOTCOMMAND \
53 "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
54 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
58 #define CONFIG_LOADS_ECHO 0 /* echo off for serial download */
59 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
61 #undef CONFIG_WATCHDOG /* watchdog disabled */
63 #define CONFIG_STATUS_LED 1 /* Status LED enabled */
64 #define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */
69 #define CONFIG_BOOTP_SUBNETMASK
70 #define CONFIG_BOOTP_GATEWAY
71 #define CONFIG_BOOTP_HOSTNAME
72 #define CONFIG_BOOTP_BOOTPATH
73 #define CONFIG_BOOTP_BOOTFILESIZE
74 #define CONFIG_BOOTP_NISDOMAIN
77 #undef CONFIG_MAC_PARTITION
78 #undef CONFIG_DOS_PARTITION
80 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
82 #define FEC_ENET 1 /* eth.c needs it that way... */
83 #undef CONFIG_SYS_DISCOVER_PHY
85 #define CONFIG_MII_INIT 1
88 #define CONFIG_ETHER_ON_FEC1 1
89 #define CONFIG_FEC1_PHY 1 /* phy address of FEC */
90 #undef CONFIG_FEC1_PHY_NORXERR
92 #define CONFIG_ETHER_ON_FEC2 1
93 #define CONFIG_FEC2_PHY 3
94 #undef CONFIG_FEC2_PHY_NORXERR
96 #define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */
100 * Command line configuration.
102 #include <config_cmd_default.h>
104 #define CONFIG_CMD_DHCP
105 #define CONFIG_CMD_MII
106 #define CONFIG_CMD_NFS
107 #define CONFIG_CMD_PING
110 #define CONFIG_BOARD_EARLY_INIT_F 1
111 #define CONFIG_MISC_INIT_R
114 * Miscellaneous configurable options
116 #define CONFIG_SYS_LONGHELP /* undef to save memory */
117 #define CONFIG_SYS_PROMPT "xtc> " /* Monitor Command Prompt */
119 #define CONFIG_SYS_HUSH_PARSER 1
121 #if defined(CONFIG_CMD_KGDB)
122 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
124 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
126 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
127 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
128 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
130 #define CONFIG_SYS_MEMTEST_START 0x0300000 /* memtest works on */
131 #define CONFIG_SYS_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */
133 #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
135 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
138 * Low Level Configuration Settings
139 * (address mappings, register initial values, etc.)
140 * You should know what you are doing if you make changes here.
142 /*-----------------------------------------------------------------------
143 * Internal Memory Mapped Register
145 #define CONFIG_SYS_IMMR 0xFF000000
147 /*-----------------------------------------------------------------------
148 * Definitions for initial stack pointer and data area (in DPRAM)
150 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
151 #define CONFIG_SYS_INIT_RAM_SIZE 0x3000 /* Size of used area in DPRAM */
152 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
153 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
155 /*-----------------------------------------------------------------------
156 * Start addresses for the final memory configuration
157 * (Set up by the startup code)
158 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
160 #define CONFIG_SYS_SDRAM_BASE 0x00000000
161 #define CONFIG_SYS_FLASH_BASE 0x40000000
163 #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
165 #define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
168 /* yes this is weird, I know :) */
169 #define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_FLASH_BASE | 0x00F00000)
170 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
172 #define CONFIG_SYS_RESET_ADDRESS 0x80000000
175 * For booting Linux, the board info and command line data
176 * have to be in the first 8 MB of memory, since this is
177 * the maximum mapped by the Linux kernel during initialization.
179 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
181 /*-----------------------------------------------------------------------
184 #define CONFIG_ENV_IS_IN_FLASH 1
185 #define CONFIG_ENV_SECT_SIZE 0x10000
187 #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x00000000)
188 #define CONFIG_ENV_OFFSET 0
189 #define CONFIG_ENV_SIZE 0x4000
191 #define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + 0x00010000)
192 #define CONFIG_ENV_OFFSET_REDUND 0
193 #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
195 #define CONFIG_SYS_FLASH_CFI 1
196 #define CONFIG_FLASH_CFI_DRIVER 1
197 #undef CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */
198 #define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
199 #define CONFIG_SYS_MAX_FLASH_BANKS 2 /* max number of memory banks */
201 #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE + 0x2000000 }
203 #define CONFIG_SYS_FLASH_PROTECTION
205 /*-----------------------------------------------------------------------
206 * Cache Configuration
208 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
209 #if defined(CONFIG_CMD_KGDB)
210 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
213 /*-----------------------------------------------------------------------
214 * SYPCR - System Protection Control 11-9
215 * SYPCR can only be written once after reset!
216 *-----------------------------------------------------------------------
217 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
219 #if defined(CONFIG_WATCHDOG)
220 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
221 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
223 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
226 /*-----------------------------------------------------------------------
227 * SIUMCR - SIU Module Configuration 11-6
228 *-----------------------------------------------------------------------
229 * PCMCIA config., multi-function pin tri-state
231 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E)
233 /*-----------------------------------------------------------------------
234 * TBSCR - Time Base Status and Control 11-26
235 *-----------------------------------------------------------------------
236 * Clear Reference Interrupt Status, Timebase freezing enabled
238 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
240 /*-----------------------------------------------------------------------
241 * RTCSC - Real-Time Clock Status and Control Register 11-27
242 *-----------------------------------------------------------------------
244 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
246 /*-----------------------------------------------------------------------
247 * PISCR - Periodic Interrupt Status and Control 11-31
248 *-----------------------------------------------------------------------
249 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
251 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
253 /*-----------------------------------------------------------------------
254 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
255 *-----------------------------------------------------------------------
256 * Reset PLL lock status sticky bit, timer expired status bit and timer
257 * interrupt status bit
261 #if CONFIG_XIN == 10000000
263 #if MPC8XX_HZ == 50000000
264 #define CONFIG_SYS_PLPRCR ((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \
265 (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
267 #elif MPC8XX_HZ == 66666666
268 #define CONFIG_SYS_PLPRCR ((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \
269 (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
272 #error unsupported CPU freq for XIN = 10MHz
275 #error unsupported freq for XIN (must be 10MHz)
280 *-----------------------------------------------------------------------
281 * SCCR - System Clock and reset Control Register 15-27
282 *-----------------------------------------------------------------------
283 * Set clock output, timebase and RTC source and divider,
284 * power management and some other internal clocks
286 * Note: When TBS == 0 the timebase is independent of current cpu clock.
289 #define SCCR_MASK SCCR_EBDF11
290 #if MPC8XX_HZ > 66666666
291 #define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
292 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
293 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
294 SCCR_DFALCD00 | SCCR_EBDF01)
296 #define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
297 SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
298 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
302 /*-----------------------------------------------------------------------
304 *-----------------------------------------------------------------------
307 /*#define CONFIG_SYS_DER 0x2002000F*/
308 #define CONFIG_SYS_DER 0
311 * Init Memory Controller:
313 * BR0/1 and OR0/1 (FLASH)
316 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
317 #define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */
319 /* used to re-map FLASH both when starting from SRAM or FLASH:
320 * restrict access enough to keep SRAM working (if any)
321 * but not too much to meddle with FLASH accesses
324 #define FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */
326 #define CONFIG_SYS_REMAP_OR_AM 0x80000000
327 #define CONFIG_SYS_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1))
329 /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
330 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_BI | OR_SCY_5_CLK | OR_TRLX)
332 #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
333 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
334 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
336 #define CONFIG_SYS_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_FLASH)
337 #define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
340 * BR4 and OR4 (SDRAM)
343 #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */
344 #define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */
346 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
347 #define CONFIG_SYS_OR_TIMING_SDRAM (OR_CSNT_SAM | OR_G5LS)
349 #define CONFIG_SYS_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_SDRAM)
350 #define CONFIG_SYS_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V)
353 * Memory Periodic Timer Prescaler
357 * Memory Periodic Timer Prescaler
359 * The Divider for PTA (refresh timer) configuration is based on an
360 * example SDRAM configuration (64 MBit, one bank). The adjustment to
361 * the number of chip selects (NCS) and the actually needed refresh
362 * rate is done by setting MPTPR.
364 * PTA is calculated from
365 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
367 * gclk CPU clock (not bus clock!)
368 * Trefresh Refresh cycle * 4 (four word bursts used)
370 * 4096 Rows from SDRAM example configuration
371 * 1000 factor s -> ms
372 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
373 * 4 Number of refresh cycles per period
374 * 64 Refresh cycle in ms per number of rows
375 * --------------------------------------------
376 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
378 * 50 MHz => 50.000.000 / Divider = 98
379 * 66 Mhz => 66.000.000 / Divider = 129
380 * 80 Mhz => 80.000.000 / Divider = 156
383 #define CONFIG_SYS_MAMR_PTA 234
386 * For 16 MBit, refresh rates could be 31.3 us
387 * (= 64 ms / 2K = 125 / quad bursts).
388 * For a simpler initialization, 15.6 us is used instead.
390 * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
391 * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
393 #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
394 #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
396 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
397 #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
398 #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
401 * MAMR settings for SDRAM
405 #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
406 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
407 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
410 #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
411 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
412 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
414 #define CONFIG_LAST_STAGE_INIT /* needed to reset the damn phys */
416 /****************************************************************/
418 #define NAND_SIZE 0x00010000 /* 64K */
419 #define NAND_BASE 0xF1000000
421 /*****************************************************************************/
423 #define CONFIG_SYS_DIRECT_FLASH_TFTP
425 /*****************************************************************************/
427 /* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB,
428 * CxOE and CxRESET. We use the CxOE.
430 #define STATUS_LED_BIT 0x00000080 /* bit 24 */
432 #define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
433 #define STATUS_LED_STATE STATUS_LED_BLINKING
435 #define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */
436 #define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
442 /* led_id_t is unsigned int mask */
443 typedef unsigned int led_id_t;
445 #define __led_toggle(_msk) \
447 ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \
450 #define __led_set(_msk, _st) \
453 ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \
455 ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \
458 #define __led_init(msk, st) __led_set(msk, st)
462 /******************************************************************************/
464 #define CONFIG_SYS_CONSOLE_IS_IN_ENV 1
465 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 1
466 #define CONFIG_SYS_CONSOLE_ENV_OVERWRITE 1
468 /******************************************************************************/
470 /* use board specific hardware */
471 #undef CONFIG_WATCHDOG /* watchdog disabled */
472 #define CONFIG_HW_WATCHDOG
474 /*****************************************************************************/
476 #define CONFIG_AUTO_COMPLETE 1
477 #define CONFIG_CRC32_VERIFY 1
478 #define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1
480 /*****************************************************************************/
482 /* pass open firmware flattened device tree */
483 #define CONFIG_OF_LIBFDT 1
485 #define OF_TBCLK (MPC8XX_HZ / 16)
487 #endif /* __CONFIG_H */