Initial revision

1 files changed, 360 insertions, 0 deletions

diff --git a/include/configs/NX823.h b/include/configs/NX823.h
new file mode 100644
index 0000000..1cb8b8f
--- /dev/null
+++ b/include/configs/NX823.h
@@ -0,0 +1,360 @@
+/*
+ * (C) Copyright 2001
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * board/config.h - configuration options, board specific
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+
+#define CONFIG_MPC823		1	/* This is a MPC823 CPU	    */
+#define CONFIG_NX823		1	/* ...on a NEXUS 823  module	*/
+
+/*#define  CONFIG_VIDEO		1 */
+
+#define CONFIG_8xx_GCLK_FREQ	MPC8XX_SPEED
+#define CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1	    */
+#undef	CONFIG_8xx_CONS_SMC2
+#undef	CONFIG_8xx_CONS_NONE
+#define CONFIG_BAUDRATE 57600	/* console baudrate = 115kbps	*/
+#define CONFIG_BOOTDELAY	2	/* autoboot after 2 seconds */
+#define CONFIG_BOOTARGS		"ramdisk=8000 "\
+				"root=/dev/nfs rw nfsroot=10.77.77.250:/ppcroot "\
+				"nfsaddrs=10.77.77.20:10.77.77.250"
+#define CONFIG_BOOTCOMMAND	"bootm 400e0000"
+
+#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
+#undef	CFG_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/
+#undef	CONFIG_WATCHDOG			/* watchdog disabled, for now	    */
+#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
+#define CONFIG_COMMANDS	 	(CONFIG_CMD_DFL | CFG_CMD_AUTOSCRIPT)
+#define CONFIG_AUTOSCRIPT
+
+/* call various generic functions */
+#define CONFIG_MISC_INIT_R
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_LONGHELP			/* undef to save memory	    */
+#define CFG_PROMPT		"=> "	/* Monitor Command Prompt   */
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CFG_CBSIZE		1024	/* Console I/O Buffer Size  */
+#else
+#define CFG_CBSIZE		256	/* Console I/O Buffer Size  */
+#endif
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16)	/* Print Buffer Size */
+#define CFG_MAXARGS		16	/* max number of command args	*/
+#define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size	*/
+
+#define CFG_MEMTEST_START	0x0400000	/* memtest works on */
+#define CFG_MEMTEST_END		0x0C00000	/* 4 ... 12 MB in DRAM	*/
+
+#define CFG_LOAD_ADDR		0x100000	/* default load address */
+
+#define CFG_HZ			1000	/* decrementer freq: 1 ms ticks */
+
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * Low Level Configuration Settings
+ * (address mappings, register initial values, etc.)
+ * You should know what you are doing if you make changes here.
+ */
+/*-----------------------------------------------------------------------
+ * Internal Memory Mapped Register
+ */
+#define CFG_IMMR		0xFFF00000
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in DPRAM)
+ */
+#define CFG_INIT_RAM_ADDR	CFG_IMMR
+#define CFG_INIT_RAM_END	0x2F00	/* End of used area in DPRAM	*/
+#define CFG_GBL_DATA_SIZE	64	/* size in bytes reserved for initial data */
+#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
+#define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
+
+/*-----------------------------------------------------------------------
+ * Start addresses for the final memory configuration
+ * (Set up by the startup code)
+ * Please note that CFG_SDRAM_BASE _must_ start at 0
+ */
+#define CFG_SDRAM_BASE		0x00000000
+#define CFG_FLASH_BASE		0x40000000
+#define CFG_MONITOR_LEN 	(128 << 10)	/* Reserve 128 kB for Monitor	*/
+#define CFG_MONITOR_BASE	CFG_FLASH_BASE
+#define CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()	*/
+
+/*
+ * For booting Linux, the board info and command line data
+ * have to be in the first 8 MB of memory, since this is
+ * the maximum mapped by the Linux kernel during initialization.
+ */
+#define CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */
+
+/*-----------------------------------------------------------------------
+ * FLASH organization
+ */
+#define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks	    */
+#define CFG_MAX_FLASH_SECT	128	/* max number of sectors on one chip	*/
+
+#define CFG_FLASH_ERASE_TOUT	120000	/* Timeout for Flash Erase (in ms)  */
+#define CFG_FLASH_WRITE_TOUT	500	/* Timeout for Flash Write (in ms)  */
+
+#define CFG_ENV_IS_IN_FLASH	1
+#define xEMBED
+#ifdef	EMBED
+#define CFG_ENV_SIZE		0x200	/* FIXME How big when embedded?? */
+#define CFG_ENV_ADDR		CFG_MONITOR_BASE
+#else
+#define CFG_ENV_ADDR		0x40020000	/* absolute address for now   */
+#define CFG_ENV_SIZE		0x20000 /* 8K ouch, this may later be */
+#endif
+
+#define CFG_FLASH_SN_BASE	0x4001fff0	/* programmer automagically puts    */
+#define CFG_FLASH_SN_SECTOR	0x40000000	/* a serial number here		    */
+#define CFG_FLASH_SN_BYTES	8
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs		*/
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CFG_CACHELINE_SHIFT	4	/* log base 2 of the above value    */
+#endif
+
+/*-----------------------------------------------------------------------
+ * SYPCR - System Protection Control				11-9
+ * SYPCR can only be written once after reset!
+ *-----------------------------------------------------------------------
+ * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
+ */
+#if defined(CONFIG_WATCHDOG)
+#define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
+			 SYPCR_SWE  | SYPCR_SWP)
+#else
+#define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
+#endif
+
+/*-----------------------------------------------------------------------
+ * SIUMCR - SIU Module Configuration				12-30
+ *-----------------------------------------------------------------------
+ * PCMCIA config., multi-function pin tri-state
+ */
+#define CFG_SIUMCR	(SIUMCR_DBGC00 | SIUMCR_DBPC00)
+
+/*-----------------------------------------------------------------------
+ * TBSCR - Time Base Status and Control				12-16
+ *-----------------------------------------------------------------------
+ * Clear Reference Interrupt Status, Timebase freezing enabled
+ */
+#define CFG_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
+
+/*-----------------------------------------------------------------------
+ * RTCSC - Real-Time Clock Status and Control Register		12-18
+ *-----------------------------------------------------------------------
+ */
+#define CFG_RTCSC	(RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
+
+/*-----------------------------------------------------------------------
+ * PISCR - Periodic Interrupt Status and Control		12-23
+ *-----------------------------------------------------------------------
+ * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
+ */
+#define CFG_PISCR	(PISCR_PS | PISCR_PITF)
+
+/*-----------------------------------------------------------------------
+ * PLPRCR - PLL, Low-Power, and Reset Control Register		5-7
+ *-----------------------------------------------------------------------
+ * Reset PLL lock status sticky bit, timer expired status bit and timer
+ * interrupt status bit
+ */
+#define MPC8XX_SPEED	66666666L
+#define MPC8XX_XIN	32768	/* 32.768 kHz crystal */
+#define MPC8XX_FACT		(MPC8XX_SPEED/MPC8XX_XIN)
+#define CFG_PLPRCR_MF  ((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT)
+#define CFG_PLPRCR		(CFG_PLPRCR_MF | PLPRCR_TEXPS | PLPRCR_TMIST)
+
+/*-----------------------------------------------------------------------
+ * SCCR - System Clock and reset Control Register		5-3
+ *-----------------------------------------------------------------------
+ * Set clock output, timebase and RTC source and divider,
+ * power management and some other internal clocks
+ */
+#define SCCR_MASK	SCCR_EBDF11
+#define CFG_SCCR	(SCCR_TBS     | \
+			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
+			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
+			 SCCR_DFALCD00)
+
+/*-----------------------------------------------------------------------
+ *
+ *-----------------------------------------------------------------------
+ *
+ */
+#define CFG_DER		0
+
+/*
+ * Init Memory Controller:
+ *
+ * BR0 and OR0 (FLASH)
+ */
+
+#define FLASH_BASE0_PRELIM	0x40000000	/* FLASH bank #0    */
+
+/* used to re-map FLASH both when starting from SRAM or FLASH:
+ * restrict access enough to keep SRAM working (if any)
+ * but not too much to meddle with FLASH accesses
+ */
+#define CFG_REMAP_OR_AM		0x80000000	/* OR addr mask */
+#define CFG_PRELIM_OR_AM	0xE0000000	/* OR addr mask */
+
+/* FLASH timing: ACS = 00, TRLX = 0, CSNT = 1, SCY = 8, EHTR = 0	*/
+#define CFG_OR_TIMING_FLASH	(OR_CSNT_SAM  | OR_ACS_DIV1 | OR_BI | \
+				 OR_SCY_8_CLK )
+
+#define CFG_OR0_REMAP	(CFG_REMAP_OR_AM  | CFG_OR_TIMING_FLASH)
+#define CFG_OR0_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
+#define CFG_BR0_PRELIM	((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
+
+/*
+ * BR1/2 and OR1/2 (SDRAM)
+ */
+#define SDRAM_BASE1_PRELIM	0x00000000	/* SDRAM bank #0    */
+#define SDRAM_BASE2_PRELIM	0x20000000	/* SDRAM bank #1    */
+#define SDRAM_MAX_SIZE		0x04000000	/* max 64 MB per bank	*/
+
+/* SDRAM timing: Multiplexed addresses, drive GPL5 high on first cycle */
+#define CFG_OR_TIMING_SDRAM	(OR_G5LS | OR_CSNT_SAM)
+
+#define CFG_OR1_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
+#define CFG_BR1_PRELIM	((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
+#define CFG_OR2_PRELIM	CFG_OR1_PRELIM
+#define CFG_BR2_PRELIM	((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
+
+/* IO and memory mapped stuff */
+#define NX823_IO_OR_AM		0xFFFF0000	/* mask for IO addresses */
+#define NX823_IO_BASE		0xFF000000	/* start of IO	*/
+#define GPOUT_OFFSET		(3<<16)
+#define QUART_OFFSET		(4<<16)
+#define VIDAC_OFFSET		(5<<16)
+#define CPLD_OFFSET		(6<<16)
+#define SED1386_OFFSET		(7<<16)
+
+/*
+ * BR3 and OR3 (general purpose output latches)
+ */
+#define GPOUT_BASE	(NX823_IO_BASE + GPOUT_OFFSET)
+#define GPOUT_TIMING	(OR_CSNT_SAM | OR_TRLX | OR_BI)
+#define CFG_OR3_PRELIM	(NX823_IO_OR_AM | GPOUT_TIMING)
+#define CFG_BR3_PRELIM	(GPOUT_BASE | BR_V)
+
+/*
+ * BR4 and OR4 (QUART)
+ */
+#define QUART_BASE	(NX823_IO_BASE + QUART_OFFSET)
+#define QUART_TIMING	(OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_TRLX)
+#define CFG_OR4_PRELIM	(NX823_IO_OR_AM | QUART_TIMING | OR_BI)
+#define CFG_BR4_PRELIM	(QUART_BASE | BR_PS_8 | BR_V)
+
+/*
+ * BR5 and OR5 (Video DAC)
+ */
+#define VIDAC_BASE	(NX823_IO_BASE + VIDAC_OFFSET)
+#define VIDAC_TIMING	(OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR)
+#define CFG_OR5_PRELIM	(NX823_IO_OR_AM | VIDAC_TIMING | OR_BI)
+#define CFG_BR5_PRELIM	(VIDAC_BASE | BR_PS_8 | BR_V)
+
+/*
+ * BR6 and OR6 (CPLD)
+ * FIXME timing not verified for CPLD
+ */
+#define CPLD_BASE	(NX823_IO_BASE + CPLD_OFFSET)
+#define CPLD_TIMING	(OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR)
+#define CFG_OR6_PRELIM	(NX823_IO_OR_AM | CPLD_TIMING | OR_BI)
+#define CFG_BR6_PRELIM	(CPLD_BASE | BR_PS_8 | BR_V )
+
+/*
+ * BR7 and OR7 (SED1386)
+ * FIXME timing not verified for SED controller
+ */
+#define SED1386_BASE	0xF7000000
+#define CFG_OR7_PRELIM	(0xFF000000 | OR_BI | OR_SETA)
+#define CFG_BR7_PRELIM	(SED1386_BASE | BR_PS_16 | BR_V )
+
+/*
+ * Memory Periodic Timer Prescaler
+ */
+
+/* periodic timer for refresh */
+#define CFG_MAMR_PTA	97		/* start with divider for 100 MHz   */
+
+/* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit	*/
+#define CFG_MPTPR_2BK_4K	MPTPR_PTP_DIV16 /* setting for 2 banks	*/
+#define CFG_MPTPR_1BK_4K	MPTPR_PTP_DIV32 /* setting for 1 bank	*/
+
+/* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit		*/
+#define CFG_MPTPR_2BK_8K	MPTPR_PTP_DIV8	/* setting for 2 banks	*/
+#define CFG_MPTPR_1BK_8K	MPTPR_PTP_DIV16 /* setting for 1 bank	*/
+
+/*
+ * MAMR settings for SDRAM
+ */
+
+/* 8 column SDRAM */
+#define CFG_MAMR_8COL	((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE	    |	\
+			 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 |	\
+			 MAMR_RLFA_1X	 | MAMR_WLFA_1X	   | MAMR_TLFA_4X)
+/* 9 column SDRAM */
+#define CFG_MAMR_9COL	((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE	    |	\
+			 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 |	\
+			 MAMR_RLFA_1X	 | MAMR_WLFA_1X	   | MAMR_TLFA_4X)
+
+
+/*
+ * Internal Definitions
+ *
+ * Boot Flags
+ */
+#define BOOTFLAG_COLD	0x01	/* Normal Power-On: Boot from FLASH */
+#define BOOTFLAG_WARM	0x02	/* Software reboot	    */
+
+#define CONFIG_ENV_OVERWRITE	/* allow changes to ethaddr (for now)	*/
+#define CONFIG_ETHADDR		00:10:20:30:40:50
+#define CONFIG_IPADDR		10.77.77.20
+#define CONFIG_SERVERIP		10.77.77.250
+
+#endif /* __CONFIG_H */