include/configs/stxxtc.h - uboot/qsr1000 - Git at Google

 /*
  * (C) Copyright 2000-2004
  * 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
  */

 /*
  * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
  * U-Boot port on STx XTc 8xx board
  * Mostly copied from Panto's NETTA2 board.
  */

 #ifndef __CONFIG_H
 #define __CONFIG_H

 /*
  * High Level Configuration Options
  * (easy to change)
  */

 #define CONFIG_MPC875		1	/* This is a MPC875 CPU		*/
 #define CONFIG_STXXTC		1	/* ...on a STx XTc  board	*/

 #define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
 #undef	CONFIG_8xx_CONS_SMC2
 #undef	CONFIG_8xx_CONS_NONE

 #define CONFIG_BAUDRATE		115200	/* console baudrate = 115.2kbps	*/

 #define CONFIG_XIN		10000000	/* 10 MHz input xtal */

 /* Select one of few clock rates defined later in this file.
 */
 /* #define MPC8XX_HZ		50000000 */
 #define MPC8XX_HZ		66666666

 #define CONFIG_8xx_GCLK_FREQ	MPC8XX_HZ

 #if 0
 #define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
 #else
 #define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
 #endif

 #undef	CONFIG_CLOCKS_IN_MHZ	/* clocks NOT passsed to Linux in MHz */

 #undef	CONFIG_BOOTARGS
 #define CONFIG_BOOTCOMMAND							\
 	"tftpboot; "								\
 	"setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} "	\
 	"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; "	\
 	"bootm"

 #define CONFIG_SOURCE
 #define CONFIG_LOADS_ECHO	0	/* echo off for serial download	*/
 #undef	CONFIG_SYS_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/

 #undef	CONFIG_WATCHDOG			/* watchdog disabled		*/

 #define	CONFIG_STATUS_LED	1	/* Status LED enabled		*/
 #define CONFIG_BOARD_SPECIFIC_LED	/* version has board specific leds */

 /*
  * BOOTP options
  */
 #define CONFIG_BOOTP_SUBNETMASK
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_HOSTNAME
 #define CONFIG_BOOTP_BOOTPATH
 #define CONFIG_BOOTP_BOOTFILESIZE
 #define CONFIG_BOOTP_NISDOMAIN


 #undef CONFIG_MAC_PARTITION
 #undef CONFIG_DOS_PARTITION

 #define	CONFIG_RTC_MPC8xx		/* use internal RTC of MPC8xx	*/

 #define	CONFIG_NET_MULTI	1	/* the only way to get the FEC in */
 #define	FEC_ENET		1	/* eth.c needs it that way... */
 #undef CONFIG_SYS_DISCOVER_PHY
 #define CONFIG_MII		1
 #define CONFIG_MII_INIT		1
 #undef CONFIG_RMII

 #define CONFIG_ETHER_ON_FEC1	1
 #define CONFIG_FEC1_PHY		1	/* phy address of FEC */
 #undef CONFIG_FEC1_PHY_NORXERR

 #define CONFIG_ETHER_ON_FEC2	1
 #define CONFIG_FEC2_PHY		3
 #undef CONFIG_FEC2_PHY_NORXERR

 #define CONFIG_ENV_OVERWRITE	1	/* allow modification of vendor params */


 /*
  * Command line configuration.
  */
 #include <config_cmd_default.h>

 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_MII
 #define CONFIG_CMD_NAND
 #define CONFIG_CMD_NFS
 #define CONFIG_CMD_PING


 #define CONFIG_BOARD_EARLY_INIT_F	1
 #define CONFIG_MISC_INIT_R

 /*
  * Miscellaneous configurable options
  */
 #define	CONFIG_SYS_LONGHELP			/* undef to save memory		*/
 #define	CONFIG_SYS_PROMPT	"xtc> "		/* Monitor Command Prompt	*/

 #define CONFIG_SYS_HUSH_PARSER	1
 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "

 #if defined(CONFIG_CMD_KGDB)
 #define	CONFIG_SYS_CBSIZE	1024		/* Console I/O Buffer Size	*/
 #else
 #define	CONFIG_SYS_CBSIZE	256		/* Console I/O Buffer Size	*/
 #endif
 #define	CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
 #define	CONFIG_SYS_MAXARGS	16		/* max number of command args	*/
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE	/* Boot Argument Buffer Size	*/

 #define CONFIG_SYS_MEMTEST_START	0x0300000	/* memtest works on	*/
 #define CONFIG_SYS_MEMTEST_END		0x0700000	/* 3 ... 7 MB in DRAM	*/

 #define	CONFIG_SYS_LOAD_ADDR		0x100000	/* default load address	*/

 #define	CONFIG_SYS_HZ		1000		/* decrementer freq: 1 ms ticks	*/

 #define CONFIG_SYS_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 CONFIG_SYS_IMMR		0xFF000000

 /*-----------------------------------------------------------------------
  * Definitions for initial stack pointer and data area (in DPRAM)
  */
 #define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_IMMR
 #define	CONFIG_SYS_INIT_RAM_END	0x3000	/* End of used area in DPRAM	*/
 #define	CONFIG_SYS_GBL_DATA_SIZE	64  /* size in bytes reserved for initial data */
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
 #define	CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET

 /*-----------------------------------------------------------------------
  * Start addresses for the final memory configuration
  * (Set up by the startup code)
  * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
  */
 #define	CONFIG_SYS_SDRAM_BASE		0x00000000
 #define CONFIG_SYS_FLASH_BASE		0x40000000
 #if defined(DEBUG)
 #define	CONFIG_SYS_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/
 #else
 #define	CONFIG_SYS_MONITOR_LEN		(192 << 10)	/* Reserve 192 kB for Monitor	*/
 #endif

 /* yes this is weird, I know :) */
 #define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_FLASH_BASE | 0x00F00000)
 #define	CONFIG_SYS_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()	*/

 #define CONFIG_SYS_RESET_ADDRESS	0x80000000

 /*
  * 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	CONFIG_SYS_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux	*/

 /*-----------------------------------------------------------------------
  * FLASH organization
  */
 #define	CONFIG_ENV_IS_IN_FLASH	1
 #define CONFIG_ENV_SECT_SIZE	0x10000

 #define	CONFIG_ENV_ADDR		(CONFIG_SYS_FLASH_BASE + 0x00000000)
 #define CONFIG_ENV_OFFSET		0
 #define	CONFIG_ENV_SIZE		0x4000

 #define CONFIG_ENV_ADDR_REDUND	(CONFIG_SYS_FLASH_BASE + 0x00010000)
 #define CONFIG_ENV_OFFSET_REDUND	0
 #define CONFIG_ENV_SIZE_REDUND	CONFIG_ENV_SIZE

 #define CONFIG_SYS_FLASH_CFI		1
 #define CONFIG_FLASH_CFI_DRIVER	1
 #undef CONFIG_SYS_FLASH_USE_BUFFER_WRITE	/* use buffered writes (20x faster) */
 #define CONFIG_SYS_MAX_FLASH_SECT	128	/* max number of sectors on one chip */
 #define CONFIG_SYS_MAX_FLASH_BANKS	2	/* max number of memory banks	*/

 #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE + 0x2000000 }

 #define CONFIG_SYS_FLASH_PROTECTION

 /*-----------------------------------------------------------------------
  * Cache Configuration
  */
 #define CONFIG_SYS_CACHELINE_SIZE	16	/* For all MPC8xx CPUs */
 #if defined(CONFIG_CMD_KGDB)
 #define CONFIG_SYS_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 CONFIG_SYS_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
 			 SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
 #else
 #define CONFIG_SYS_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
 #endif

 /*-----------------------------------------------------------------------
  * SIUMCR - SIU Module Configuration				11-6
  *-----------------------------------------------------------------------
  * PCMCIA config., multi-function pin tri-state
  */
 #define CONFIG_SYS_SIUMCR	(SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E)

 /*-----------------------------------------------------------------------
  * TBSCR - Time Base Status and Control				11-26
  *-----------------------------------------------------------------------
  * Clear Reference Interrupt Status, Timebase freezing enabled
  */
 #define CONFIG_SYS_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)

 /*-----------------------------------------------------------------------
  * RTCSC - Real-Time Clock Status and Control Register		11-27
  *-----------------------------------------------------------------------
  */
 #define CONFIG_SYS_RTCSC	(RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)

 /*-----------------------------------------------------------------------
  * PISCR - Periodic Interrupt Status and Control		11-31
  *-----------------------------------------------------------------------
  * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
  */
 #define CONFIG_SYS_PISCR	(PISCR_PS | PISCR_PITF)

 /*-----------------------------------------------------------------------
  * PLPRCR - PLL, Low-Power, and Reset Control Register		15-30
  *-----------------------------------------------------------------------
  * Reset PLL lock status sticky bit, timer expired status bit and timer
  * interrupt status bit
  *
  */

 #if CONFIG_XIN == 10000000

 #if MPC8XX_HZ == 50000000
 #define CONFIG_SYS_PLPRCR	((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \
 			 (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
 			 PLPRCR_TEXPS)
 #elif MPC8XX_HZ == 66666666
 #define CONFIG_SYS_PLPRCR	((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \
 			 (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
 			 PLPRCR_TEXPS)
 #else
 #error unsupported CPU freq for XIN = 10MHz
 #endif
 #else
 #error unsupported freq for XIN (must be 10MHz)
 #endif


 /*
  *-----------------------------------------------------------------------
  * SCCR - System Clock and reset Control Register		15-27
  *-----------------------------------------------------------------------
  * Set clock output, timebase and RTC source and divider,
  * power management and some other internal clocks
  *
  * Note: When TBS == 0 the timebase is independent of current cpu clock.
  */

 #define SCCR_MASK	SCCR_EBDF11
 #if MPC8XX_HZ > 66666666
 #define CONFIG_SYS_SCCR	(/* SCCR_TBS     | */ SCCR_CRQEN | \
 			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
 			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
 			 SCCR_DFALCD00 | SCCR_EBDF01)
 #else
 #define CONFIG_SYS_SCCR	(/* SCCR_TBS     | */ SCCR_CRQEN | \
 			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
 			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
 			 SCCR_DFALCD00)
 #endif

 /*-----------------------------------------------------------------------
  *
  *-----------------------------------------------------------------------
  *
  */
 /*#define	CONFIG_SYS_DER	0x2002000F*/
 #define CONFIG_SYS_DER	0

 /*
  * Init Memory Controller:
  *
  * BR0/1 and OR0/1 (FLASH)
  */

 #define FLASH_BASE0_PRELIM	0x40000000	/* FLASH bank #0	*/
 #define FLASH_BASE1_PRELIM	0x42000000	/* FLASH bank #1	*/

 /* 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 FLASH_BANK_MAX_SIZE	0x01000000	/* max size per chip */

 #define CONFIG_SYS_REMAP_OR_AM		0x80000000
 #define CONFIG_SYS_PRELIM_OR_AM	(0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1))

 /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1	*/
 #define CONFIG_SYS_OR_TIMING_FLASH	(OR_CSNT_SAM  | OR_BI | OR_SCY_5_CLK | OR_TRLX)

 #define CONFIG_SYS_OR0_REMAP	(CONFIG_SYS_REMAP_OR_AM  | CONFIG_SYS_OR_TIMING_FLASH)
 #define CONFIG_SYS_OR0_PRELIM	(CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
 #define CONFIG_SYS_BR0_PRELIM	((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )

 #define CONFIG_SYS_OR1_PRELIM	((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_FLASH)
 #define CONFIG_SYS_BR1_PRELIM	((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )

 /*
  * BR4 and OR4 (SDRAM)
  *
  */
 #define SDRAM_BASE1_PRELIM	0x00000000	/* SDRAM bank #0	*/
 #define	SDRAM_MAX_SIZE		(256 << 20)	/* max 256MB per bank	*/

 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care)	*/
 #define CONFIG_SYS_OR_TIMING_SDRAM	(OR_CSNT_SAM | OR_G5LS)

 #define CONFIG_SYS_OR4_PRELIM	((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_SDRAM)
 #define CONFIG_SYS_BR4_PRELIM	((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V)

 /*
  * Memory Periodic Timer Prescaler
  */

 /*
  * Memory Periodic Timer Prescaler
  *
  * The Divider for PTA (refresh timer) configuration is based on an
  * example SDRAM configuration (64 MBit, one bank). The adjustment to
  * the number of chip selects (NCS) and the actually needed refresh
  * rate is done by setting MPTPR.
  *
  * PTA is calculated from
  *	PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
  *
  *	gclk	  CPU clock (not bus clock!)
  *	Trefresh  Refresh cycle * 4 (four word bursts used)
  *
  * 4096  Rows from SDRAM example configuration
  * 1000  factor s -> ms
  *   32  PTP (pre-divider from MPTPR) from SDRAM example configuration
  *    4  Number of refresh cycles per period
  *   64  Refresh cycle in ms per number of rows
  * --------------------------------------------
  * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
  *
  * 50 MHz => 50.000.000 / Divider =  98
  * 66 Mhz => 66.000.000 / Divider = 129
  * 80 Mhz => 80.000.000 / Divider = 156
  */

 #define CONFIG_SYS_MAMR_PTA		 234

 /*
  * For 16 MBit, refresh rates could be 31.3 us
  * (= 64 ms / 2K = 125 / quad bursts).
  * For a simpler initialization, 15.6 us is used instead.
  *
  * #define CONFIG_SYS_MPTPR_2BK_2K	MPTPR_PTP_DIV32		for 2 banks
  * #define CONFIG_SYS_MPTPR_1BK_2K	MPTPR_PTP_DIV64		for 1 bank
  */
 #define CONFIG_SYS_MPTPR_2BK_4K	MPTPR_PTP_DIV16		/* setting for 2 banks	*/
 #define CONFIG_SYS_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 CONFIG_SYS_MPTPR_2BK_8K	MPTPR_PTP_DIV8		/* setting for 2 banks	*/
 #define CONFIG_SYS_MPTPR_1BK_8K	MPTPR_PTP_DIV16		/* setting for 1 bank	*/

 /*
  * MAMR settings for SDRAM
  */

 /* 8 column SDRAM */
 #define CONFIG_SYS_MAMR_8COL	((CONFIG_SYS_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 CONFIG_SYS_MAMR_9COL	((CONFIG_SYS_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_LAST_STAGE_INIT		/* needed to reset the damn phys */

 /****************************************************************/

 #define NAND_SIZE	0x00010000	/* 64K */
 #define NAND_BASE	0xF1000000

 /****************************************************************/

 /* NAND */
 #define CONFIG_NAND_LEGACY
 #define CONFIG_SYS_NAND_BASE		NAND_BASE
 #define CONFIG_MTD_NAND_ECC_JFFS2
 #define CONFIG_MTD_NAND_VERIFY_WRITE
 #define CONFIG_MTD_NAND_UNSAFE

 #define CONFIG_SYS_MAX_NAND_DEVICE	1
 #undef NAND_NO_RB

 #define SECTORSIZE		512
 #define ADDR_COLUMN		1
 #define ADDR_PAGE		2
 #define ADDR_COLUMN_PAGE	3
 #define NAND_ChipID_UNKNOWN	0x00
 #define NAND_MAX_FLOORS		1

 /* ALE = PC15, CLE = PB23, CE = PA7, F_RY_BY = PA6 */
 #define NAND_DISABLE_CE(nand) \
 	do { \
 		(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat) |=  (1 << (15 - 7)); \
 	} while(0)

 #define NAND_ENABLE_CE(nand) \
 	do { \
 		(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat) &= ~(1 << (15 - 7)); \
 	} while(0)

 #define NAND_CTL_CLRALE(nandptr) \
 	do { \
 		(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat) &= ~(1 << (15 - 15)); \
 	} while(0)

 #define NAND_CTL_SETALE(nandptr) \
 	do { \
 		(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat) |=  (1 << (15 - 15)); \
 	} while(0)

 #define NAND_CTL_CLRCLE(nandptr) \
 	do { \
 		(((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat) &= ~(1 << (31 - 23)); \
 	} while(0)

 #define NAND_CTL_SETCLE(nandptr) \
 	do { \
 		(((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat) |=  (1 << (31 - 23)); \
 	} while(0)

 #ifndef NAND_NO_RB
 #define NAND_WAIT_READY(nand) \
 	do { \
 		int _tries = 0; \
 		while ((((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat & (1 << (15 - 6))) == 0) \
 			if (++_tries > 100000) \
 				break; \
 	} while (0)
 #else
 #define NAND_WAIT_READY(nand) udelay(12)
 #endif

 #define WRITE_NAND_COMMAND(d, adr) \
 	do { \
 		*(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
 	} while(0)

 #define WRITE_NAND_ADDRESS(d, adr) \
 	do { \
 		*(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
 	} while(0)

 #define WRITE_NAND(d, adr) \
 	do { \
 		*(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
 	} while(0)

 #define READ_NAND(adr) \
 	((unsigned char)(*(volatile unsigned char *)(unsigned long)(adr)))

 /*****************************************************************************/

 #define CONFIG_SYS_DIRECT_FLASH_TFTP
 #define CONFIG_SYS_DIRECT_NAND_TFTP

 /*****************************************************************************/

 /* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB,
  * CxOE and CxRESET.  We use the CxOE.
  */
 #define STATUS_LED_BIT		0x00000080		/* bit 24 */

 #define STATUS_LED_PERIOD	(CONFIG_SYS_HZ / 2)
 #define STATUS_LED_STATE	STATUS_LED_BLINKING

 #define STATUS_LED_ACTIVE	0		/* LED on for bit == 0	*/
 #define STATUS_LED_BOOT		0		/* LED 0 used for boot status */

 #ifndef __ASSEMBLY__

 /* LEDs */

 /* led_id_t is unsigned int mask */
 typedef unsigned int led_id_t;

 #define __led_toggle(_msk) \
 	do { \
 		((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \
 	} while(0)

 #define __led_set(_msk, _st) \
 	do { \
 		if ((_st)) \
 			((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \
 		else \
 			((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \
 	} while(0)

 #define __led_init(msk, st) __led_set(msk, st)

 #endif

 /******************************************************************************/

 #define CONFIG_SYS_CONSOLE_IS_IN_ENV		1
 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE	1
 #define CONFIG_SYS_CONSOLE_ENV_OVERWRITE	1

 /******************************************************************************/

 /* use board specific hardware */
 #undef	CONFIG_WATCHDOG			/* watchdog disabled		*/
 #define CONFIG_HW_WATCHDOG

 /*****************************************************************************/

 #define CONFIG_AUTO_COMPLETE	1
 #define CONFIG_CRC32_VERIFY	1
 #define CONFIG_HUSH_OLD_PARSER_COMPATIBLE	1

 /*****************************************************************************/

 /* pass open firmware flattened device tree */
 #define CONFIG_OF_LIBFDT	1

 #define OF_CPU			"PowerPC,MPC870@0"
 #define OF_TBCLK		(MPC8XX_HZ / 16)

 #endif	/* __CONFIG_H */
	/*
	* (C) Copyright 2000-2004
	* 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
	*/

	/*
	* Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
	* U-Boot port on STx XTc 8xx board
	* Mostly copied from Panto's NETTA2 board.
	*/

	#ifndef __CONFIG_H
	#define __CONFIG_H

	/*
	* High Level Configuration Options
	* (easy to change)
	*/

	#define CONFIG_MPC875 1 /* This is a MPC875 CPU */
	#define CONFIG_STXXTC 1 /* ...on a STx XTc board */

	#define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
	#undef CONFIG_8xx_CONS_SMC2
	#undef CONFIG_8xx_CONS_NONE

	#define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */

	#define CONFIG_XIN 10000000 /* 10 MHz input xtal */

	/* Select one of few clock rates defined later in this file.
	*/
	/* #define MPC8XX_HZ 50000000 */
	#define MPC8XX_HZ 66666666

	#define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ

	#if 0
	#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
	#else
	#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
	#endif

	#undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */

	#undef CONFIG_BOOTARGS
	#define CONFIG_BOOTCOMMAND \
	"tftpboot; " \
	"setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
	"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
	"bootm"

	#define CONFIG_SOURCE
	#define CONFIG_LOADS_ECHO 0 /* echo off for serial download */
	#undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */

	#undef CONFIG_WATCHDOG /* watchdog disabled */

	#define CONFIG_STATUS_LED 1 /* Status LED enabled */
	#define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */

	/*
	* BOOTP options
	*/
	#define CONFIG_BOOTP_SUBNETMASK
	#define CONFIG_BOOTP_GATEWAY
	#define CONFIG_BOOTP_HOSTNAME
	#define CONFIG_BOOTP_BOOTPATH
	#define CONFIG_BOOTP_BOOTFILESIZE
	#define CONFIG_BOOTP_NISDOMAIN


	#undef CONFIG_MAC_PARTITION
	#undef CONFIG_DOS_PARTITION

	#define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */

	#define CONFIG_NET_MULTI 1 /* the only way to get the FEC in */
	#define FEC_ENET 1 /* eth.c needs it that way... */
	#undef CONFIG_SYS_DISCOVER_PHY
	#define CONFIG_MII 1
	#define CONFIG_MII_INIT 1
	#undef CONFIG_RMII

	#define CONFIG_ETHER_ON_FEC1 1
	#define CONFIG_FEC1_PHY 1 /* phy address of FEC */
	#undef CONFIG_FEC1_PHY_NORXERR

	#define CONFIG_ETHER_ON_FEC2 1
	#define CONFIG_FEC2_PHY 3
	#undef CONFIG_FEC2_PHY_NORXERR

	#define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */


	/*
	* Command line configuration.
	*/
	#include <config_cmd_default.h>

	#define CONFIG_CMD_DHCP
	#define CONFIG_CMD_MII
	#define CONFIG_CMD_NAND
	#define CONFIG_CMD_NFS
	#define CONFIG_CMD_PING


	#define CONFIG_BOARD_EARLY_INIT_F 1
	#define CONFIG_MISC_INIT_R

	/*
	* Miscellaneous configurable options
	*/
	#define CONFIG_SYS_LONGHELP /* undef to save memory */
	#define CONFIG_SYS_PROMPT "xtc> " /* Monitor Command Prompt */

	#define CONFIG_SYS_HUSH_PARSER 1
	#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "

	#if defined(CONFIG_CMD_KGDB)
	#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
	#else
	#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
	#endif
	#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
	#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
	#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */

	#define CONFIG_SYS_MEMTEST_START 0x0300000 /* memtest works on */
	#define CONFIG_SYS_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */

	#define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */

	#define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */

	#define CONFIG_SYS_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 CONFIG_SYS_IMMR 0xFF000000

	/*-----------------------------------------------------------------------
	* Definitions for initial stack pointer and data area (in DPRAM)
	*/
	#define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
	#define CONFIG_SYS_INIT_RAM_END 0x3000 /* End of used area in DPRAM */
	#define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
	#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
	#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET

	/*-----------------------------------------------------------------------
	* Start addresses for the final memory configuration
	* (Set up by the startup code)
	* Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
	*/
	#define CONFIG_SYS_SDRAM_BASE 0x00000000
	#define CONFIG_SYS_FLASH_BASE 0x40000000
	#if defined(DEBUG)
	#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
	#else
	#define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
	#endif

	/* yes this is weird, I know :) */
	#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_FLASH_BASE \| 0x00F00000)
	#define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */

	#define CONFIG_SYS_RESET_ADDRESS 0x80000000

	/*
	* 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 CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */

	/*-----------------------------------------------------------------------
	* FLASH organization
	*/
	#define CONFIG_ENV_IS_IN_FLASH 1
	#define CONFIG_ENV_SECT_SIZE 0x10000

	#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x00000000)
	#define CONFIG_ENV_OFFSET 0
	#define CONFIG_ENV_SIZE 0x4000

	#define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + 0x00010000)
	#define CONFIG_ENV_OFFSET_REDUND 0
	#define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE

	#define CONFIG_SYS_FLASH_CFI 1
	#define CONFIG_FLASH_CFI_DRIVER 1
	#undef CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */
	#define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
	#define CONFIG_SYS_MAX_FLASH_BANKS 2 /* max number of memory banks */

	#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE + 0x2000000 }

	#define CONFIG_SYS_FLASH_PROTECTION

	/*-----------------------------------------------------------------------
	* Cache Configuration
	*/
	#define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
	#if defined(CONFIG_CMD_KGDB)
	#define CONFIG_SYS_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 CONFIG_SYS_SYPCR (SYPCR_SWTC \| SYPCR_BMT \| SYPCR_BME \| SYPCR_SWF \| \
	SYPCR_SWE \| SYPCR_SWRI\| SYPCR_SWP)
	#else
	#define CONFIG_SYS_SYPCR (SYPCR_SWTC \| SYPCR_BMT \| SYPCR_BME \| SYPCR_SWF \| SYPCR_SWP)
	#endif

	/*-----------------------------------------------------------------------
	* SIUMCR - SIU Module Configuration 11-6
	*-----------------------------------------------------------------------
	* PCMCIA config., multi-function pin tri-state
	*/
	#define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 \| SIUMCR_DBPC00 \| SIUMCR_MLRC01 \| SIUMCR_FRC \| SIUMCR_GB5E)

	/*-----------------------------------------------------------------------
	* TBSCR - Time Base Status and Control 11-26
	*-----------------------------------------------------------------------
	* Clear Reference Interrupt Status, Timebase freezing enabled
	*/
	#define CONFIG_SYS_TBSCR (TBSCR_REFA \| TBSCR_REFB \| TBSCR_TBF)

	/*-----------------------------------------------------------------------
	* RTCSC - Real-Time Clock Status and Control Register 11-27
	*-----------------------------------------------------------------------
	*/
	#define CONFIG_SYS_RTCSC (RTCSC_SEC \| RTCSC_ALR \| RTCSC_RTF\| RTCSC_RTE)

	/*-----------------------------------------------------------------------
	* PISCR - Periodic Interrupt Status and Control 11-31
	*-----------------------------------------------------------------------
	* Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
	*/
	#define CONFIG_SYS_PISCR (PISCR_PS \| PISCR_PITF)

	/*-----------------------------------------------------------------------
	* PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
	*-----------------------------------------------------------------------
	* Reset PLL lock status sticky bit, timer expired status bit and timer
	* interrupt status bit
	*
	*/

	#if CONFIG_XIN == 10000000

	#if MPC8XX_HZ == 50000000
	#define CONFIG_SYS_PLPRCR ((0 << PLPRCR_MFN_SHIFT) \| (0 << PLPRCR_MFD_SHIFT) \| \
	(1 << PLPRCR_S_SHIFT) \| (10 << PLPRCR_MFI_SHIFT) \| (0 << PLPRCR_PDF_SHIFT) \| \
	PLPRCR_TEXPS)
	#elif MPC8XX_HZ == 66666666
	#define CONFIG_SYS_PLPRCR ((1 << PLPRCR_MFN_SHIFT) \| (2 << PLPRCR_MFD_SHIFT) \| \
	(1 << PLPRCR_S_SHIFT) \| (13 << PLPRCR_MFI_SHIFT) \| (0 << PLPRCR_PDF_SHIFT) \| \
	PLPRCR_TEXPS)
	#else
	#error unsupported CPU freq for XIN = 10MHz
	#endif
	#else
	#error unsupported freq for XIN (must be 10MHz)
	#endif


	/*
	*-----------------------------------------------------------------------
	* SCCR - System Clock and reset Control Register 15-27
	*-----------------------------------------------------------------------
	* Set clock output, timebase and RTC source and divider,
	* power management and some other internal clocks
	*
	* Note: When TBS == 0 the timebase is independent of current cpu clock.
	*/

	#define SCCR_MASK SCCR_EBDF11
	#if MPC8XX_HZ > 66666666
	#define CONFIG_SYS_SCCR (/* SCCR_TBS \| */ SCCR_CRQEN \| \
	SCCR_COM00 \| SCCR_DFSYNC00 \| SCCR_DFBRG00 \| \
	SCCR_DFNL000 \| SCCR_DFNH000 \| SCCR_DFLCD000 \| \
	SCCR_DFALCD00 \| SCCR_EBDF01)
	#else
	#define CONFIG_SYS_SCCR (/* SCCR_TBS \| */ SCCR_CRQEN \| \
	SCCR_COM00 \| SCCR_DFSYNC00 \| SCCR_DFBRG00 \| \
	SCCR_DFNL000 \| SCCR_DFNH000 \| SCCR_DFLCD000 \| \
	SCCR_DFALCD00)
	#endif

	/*-----------------------------------------------------------------------
	*
	*-----------------------------------------------------------------------
	*
	*/
	/#define CONFIG_SYS_DER 0x2002000F/
	#define CONFIG_SYS_DER 0

	/*
	* Init Memory Controller:
	*
	* BR0/1 and OR0/1 (FLASH)
	*/

	#define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
	#define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */

	/* 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 FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */

	#define CONFIG_SYS_REMAP_OR_AM 0x80000000
	#define CONFIG_SYS_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1))

	/* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
	#define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM \| OR_BI \| OR_SCY_5_CLK \| OR_TRLX)

	#define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM \| CONFIG_SYS_OR_TIMING_FLASH)
	#define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM \| CONFIG_SYS_OR_TIMING_FLASH)
	#define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) \| BR_PS_16 \| BR_V )

	#define CONFIG_SYS_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) \| CONFIG_SYS_OR_TIMING_FLASH)
	#define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) \| BR_PS_16 \| BR_V )

	/*
	* BR4 and OR4 (SDRAM)
	*
	*/
	#define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */
	#define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */

	/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
	#define CONFIG_SYS_OR_TIMING_SDRAM (OR_CSNT_SAM \| OR_G5LS)

	#define CONFIG_SYS_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) \| CONFIG_SYS_OR_TIMING_SDRAM)
	#define CONFIG_SYS_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) \| BR_MS_UPMA \| BR_PS_32 \| BR_V)

	/*
	* Memory Periodic Timer Prescaler
	*/

	/*
	* Memory Periodic Timer Prescaler
	*
	* The Divider for PTA (refresh timer) configuration is based on an
	* example SDRAM configuration (64 MBit, one bank). The adjustment to
	* the number of chip selects (NCS) and the actually needed refresh
	* rate is done by setting MPTPR.
	*
	* PTA is calculated from
	* PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
	*
	* gclk CPU clock (not bus clock!)
	* Trefresh Refresh cycle * 4 (four word bursts used)
	*
	* 4096 Rows from SDRAM example configuration
	* 1000 factor s -> ms
	* 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
	* 4 Number of refresh cycles per period
	* 64 Refresh cycle in ms per number of rows
	* --------------------------------------------
	* Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
	*
	* 50 MHz => 50.000.000 / Divider = 98
	* 66 Mhz => 66.000.000 / Divider = 129
	* 80 Mhz => 80.000.000 / Divider = 156
	*/

	#define CONFIG_SYS_MAMR_PTA 234

	/*
	* For 16 MBit, refresh rates could be 31.3 us
	* (= 64 ms / 2K = 125 / quad bursts).
	* For a simpler initialization, 15.6 us is used instead.
	*
	* #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
	* #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
	*/
	#define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
	#define CONFIG_SYS_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 CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
	#define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */

	/*
	* MAMR settings for SDRAM
	*/

	/* 8 column SDRAM */
	#define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_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 CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_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_LAST_STAGE_INIT /* needed to reset the damn phys */

	/****************************************************************/

	#define NAND_SIZE 0x00010000 /* 64K */
	#define NAND_BASE 0xF1000000

	/****************************************************************/

	/* NAND */
	#define CONFIG_NAND_LEGACY
	#define CONFIG_SYS_NAND_BASE NAND_BASE
	#define CONFIG_MTD_NAND_ECC_JFFS2
	#define CONFIG_MTD_NAND_VERIFY_WRITE
	#define CONFIG_MTD_NAND_UNSAFE

	#define CONFIG_SYS_MAX_NAND_DEVICE 1
	#undef NAND_NO_RB

	#define SECTORSIZE 512
	#define ADDR_COLUMN 1
	#define ADDR_PAGE 2
	#define ADDR_COLUMN_PAGE 3
	#define NAND_ChipID_UNKNOWN 0x00
	#define NAND_MAX_FLOORS 1

	/* ALE = PC15, CLE = PB23, CE = PA7, F_RY_BY = PA6 */
	#define NAND_DISABLE_CE(nand) \
	do { \
	(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat) \|= (1 << (15 - 7)); \
	} while(0)

	#define NAND_ENABLE_CE(nand) \
	do { \
	(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat) &= ~(1 << (15 - 7)); \
	} while(0)

	#define NAND_CTL_CLRALE(nandptr) \
	do { \
	(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat) &= ~(1 << (15 - 15)); \
	} while(0)

	#define NAND_CTL_SETALE(nandptr) \
	do { \
	(((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat) \|= (1 << (15 - 15)); \
	} while(0)

	#define NAND_CTL_CLRCLE(nandptr) \
	do { \
	(((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat) &= ~(1 << (31 - 23)); \
	} while(0)

	#define NAND_CTL_SETCLE(nandptr) \
	do { \
	(((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat) \|= (1 << (31 - 23)); \
	} while(0)

	#ifndef NAND_NO_RB
	#define NAND_WAIT_READY(nand) \
	do { \
	int _tries = 0; \
	while ((((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat & (1 << (15 - 6))) == 0) \
	if (++_tries > 100000) \
	break; \
	} while (0)
	#else
	#define NAND_WAIT_READY(nand) udelay(12)
	#endif

	#define WRITE_NAND_COMMAND(d, adr) \
	do { \
	(volatile unsigned char )((unsigned long)(adr)) = (unsigned char)(d); \
	} while(0)

	#define WRITE_NAND_ADDRESS(d, adr) \
	do { \
	(volatile unsigned char )((unsigned long)(adr)) = (unsigned char)(d); \
	} while(0)

	#define WRITE_NAND(d, adr) \
	do { \
	(volatile unsigned char )((unsigned long)(adr)) = (unsigned char)(d); \
	} while(0)

	#define READ_NAND(adr) \
	((unsigned char)((volatile unsigned char )(unsigned long)(adr)))

	/*****************************************************************************/

	#define CONFIG_SYS_DIRECT_FLASH_TFTP
	#define CONFIG_SYS_DIRECT_NAND_TFTP

	/*****************************************************************************/

	/* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB,
	* CxOE and CxRESET. We use the CxOE.
	*/
	#define STATUS_LED_BIT 0x00000080 /* bit 24 */

	#define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
	#define STATUS_LED_STATE STATUS_LED_BLINKING

	#define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */
	#define STATUS_LED_BOOT 0 /* LED 0 used for boot status */

	#ifndef __ASSEMBLY__

	/* LEDs */

	/* led_id_t is unsigned int mask */
	typedef unsigned int led_id_t;

	#define __led_toggle(_msk) \
	do { \
	((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \
	} while(0)

	#define __led_set(_msk, _st) \
	do { \
	if ((_st)) \
	((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb \|= (_msk); \
	else \
	((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \
	} while(0)

	#define __led_init(msk, st) __led_set(msk, st)

	#endif

	/******************************************************************************/

	#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1
	#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 1
	#define CONFIG_SYS_CONSOLE_ENV_OVERWRITE 1

	/******************************************************************************/

	/* use board specific hardware */
	#undef CONFIG_WATCHDOG /* watchdog disabled */
	#define CONFIG_HW_WATCHDOG

	/*****************************************************************************/

	#define CONFIG_AUTO_COMPLETE 1
	#define CONFIG_CRC32_VERIFY 1
	#define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1

	/*****************************************************************************/

	/* pass open firmware flattened device tree */
	#define CONFIG_OF_LIBFDT 1

	#define OF_CPU "PowerPC,MPC870@0"
	#define OF_TBCLK (MPC8XX_HZ / 16)

	#endif /* __CONFIG_H */