/*
 * (C) Copyright 2005
 * Heiko Schocher, DENX Software Engineering, <hs@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_MPC8260		1	/* This is a MPC8260 CPU		*/
#define CONFIG_MPC8272_FAMILY	1
#define CONFIG_IDS8247		1
#define CPU_ID_STR		"MPC8247"
#define CONFIG_CPM2		1	/* Has a CPM2 */

#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/

#define	CONFIG_BOOTCOUNT_LIMIT

#define CONFIG_PREBOOT	"echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo"

#undef	CONFIG_BOOTARGS

#define	CONFIG_EXTRA_ENV_SETTINGS					\
	"netdev=eth0\0"							\
	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
		"nfsroot=${serverip}:${rootpath}\0"			\
	"ramargs=setenv bootargs root=/dev/ram rw "			\
	"console=ttyS0,115200\0"					\
	"addip=setenv bootargs ${bootargs} "				\
		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
		":${hostname}:${netdev}:off panic=1\0"			\
	"flash_nfs=run nfsargs addip;"					\
		"bootm ${kernel_addr}\0"				\
	"flash_self=run ramargs addip;"					\
		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0"	\
	"rootpath=/opt/eldk/ppc_82xx\0"					\
	"bootfile=/tftpboot/IDS8247/uImage\0"				\
	"kernel_addr=ff800000\0"					\
	"ramdisk_addr=ffa00000\0"					\
	""
#define CONFIG_BOOTCOMMAND	"run flash_self"

#define CONFIG_MISC_INIT_R	1

/* enable I2C and select the hardware/software driver */
#undef  CONFIG_HARD_I2C			/* I2C with hardware support	*/
#define CONFIG_SOFT_I2C		1	/* I2C bit-banged		*/
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
#define CFG_I2C_SLAVE		0x7F

/*
 * Software (bit-bang) I2C driver configuration
 */

#define I2C_PORT	0		/* Port A=0, B=1, C=2, D=3 */
#define I2C_ACTIVE	(iop->pdir |=  0x00000080)
#define I2C_TRISTATE	(iop->pdir &= ~0x00000080)
#define I2C_READ	((iop->pdat & 0x00000080) != 0)
#define I2C_SDA(bit)	if(bit) iop->pdat |=  0x00000080; \
			else    iop->pdat &= ~0x00000080
#define I2C_SCL(bit)	if(bit) iop->pdat |=  0x00000100; \
			else    iop->pdat &= ~0x00000100
#define I2C_DELAY	udelay(5)	/* 1/4 I2C clock duration */

#if 0
#define CFG_I2C_EEPROM_ADDR	0x50
#define CFG_I2C_EEPROM_ADDR_LEN 2
#define CFG_EEPROM_PAGE_WRITE_BITS	4
#define CFG_EEPROM_PAGE_WRITE_DELAY_MS	10	/* and takes up to 10 msec */

#define CONFIG_I2C_X
#endif

/*
 * select serial console configuration
 * use the extern UART for the console
 */
#define	CONFIG_CONS_INDEX	1
#define CONFIG_BAUDRATE		115200
/*
 * NS16550 Configuration
 */
#define CFG_NS16550
#define CFG_NS16550_SERIAL

#define CFG_NS16550_REG_SIZE    1

#define CFG_NS16550_CLK         14745600

#define	CFG_UART_BASE	0xE0000000
#define CFG_UART_SIZE	0x10000

#define CFG_NS16550_COM1        (CFG_UART_BASE + 0x8000)

/*
 * select ethernet configuration
 *
 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
 * for FCC)
 *
 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
 * defined elsewhere (as for the console), or CFG_CMD_NET must be removed
 * from CONFIG_COMMANDS to remove support for networking.
 *
 */
#undef	CONFIG_ETHER_ON_SCC		/* define if ether on SCC       */
#define	CONFIG_ETHER_ON_FCC		/* define if ether on FCC       */
#undef	CONFIG_ETHER_NONE		/* define if ether on something else */
#define	CONFIG_ETHER_INDEX    2		/* which SCC/FCC channel for ethernet */

/*
 * - Rx-CLK is CLK13
 * - Tx-CLK is CLK14
 * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
 * - Enable Full Duplex in FSMR
 */
# define CFG_CMXFCR_MASK	(CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
# define CFG_CMXFCR_VALUE	(CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
# define CFG_CPMFCR_RAMTYPE	0
# define CFG_FCC_PSMR		(FCC_PSMR_FDE|FCC_PSMR_LPB)


/* system clock rate (CLKIN) - equal to the 60x and local bus speed */
#define CONFIG_8260_CLKIN	66666666	/* in Hz */

#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		*/

#define	CONFIG_TIMESTAMP		/* Print image info with timestamp */

#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT|CONFIG_BOOTP_BOOTFILESIZE)

#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_NFS	| \
				CFG_CMD_NAND	| \
				CFG_CMD_I2C	| \
				CFG_CMD_SNTP	)

/* 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 }

#define	CFG_RESET_ADDRESS 0xFDFFFFFC	/* "bad" address		*/

/*
 * 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 */


/* What should the base address of the main FLASH be and how big is
 * it (in MBytes)? This must contain TEXT_BASE from board/ids8247/config.mk
 * The main FLASH is whichever is connected to *CS0.
 */
#define CFG_FLASH0_BASE 0xFFF00000
#define CFG_FLASH0_SIZE 8

/* Flash bank size (for preliminary settings)
 */
#define CFG_FLASH_SIZE CFG_FLASH0_SIZE

/*-----------------------------------------------------------------------
 * FLASH organization
 */
#define CFG_MAX_FLASH_BANKS	1	/* max num of memory banks      */
#define CFG_MAX_FLASH_SECT	64	/* max num of sects on one chip */

#define CFG_FLASH_ERASE_TOUT	240000	/* Flash Erase Timeout (in ms)  */
#define CFG_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (in ms)  */

/* Environment in flash */
#define CFG_ENV_IS_IN_FLASH	1
#define CFG_ENV_ADDR		(CFG_FLASH_BASE+0x60000)
#define CFG_ENV_SIZE		0x20000
#define CFG_ENV_SECT_SIZE	0x20000

/*-----------------------------------------------------------------------
 * NAND-FLASH stuff
 *-----------------------------------------------------------------------
 */
#if (CONFIG_COMMANDS & CFG_CMD_NAND)

#define CFG_NAND0_BASE 0xE1000000

#define CFG_MAX_NAND_DEVICE     1       /* Max number of NAND devices           */
#define SECTORSIZE 512
#define NAND_NO_RB

#define ADDR_COLUMN 1
#define ADDR_PAGE 2
#define ADDR_COLUMN_PAGE 3

#define NAND_ChipID_UNKNOWN     0x00
#define NAND_MAX_FLOORS 1
#define NAND_MAX_CHIPS 1

#define NAND_DISABLE_CE(nand) do \
{ \
	*(((volatile __u8 *)(nand->IO_ADDR)) + 0xc) = 0; \
} while(0)

#define NAND_ENABLE_CE(nand) do \
{ \
	*(((volatile __u8 *)(nand->IO_ADDR)) + 0x8) = 0; \
} while(0)

#define NAND_CTL_CLRALE(nandptr) do \
{ \
	*(((volatile __u8 *)nandptr) + 0x8) = 0; \
} while(0)

#define NAND_CTL_SETALE(nandptr) do \
{ \
	*(((volatile __u8 *)nandptr) + 0x9) = 0; \
} while(0)

#define NAND_CTL_CLRCLE(nandptr) do \
{ \
	*(((volatile __u8 *)nandptr) + 0x8) = 0; \
} while(0)

#define NAND_CTL_SETCLE(nandptr) do \
{ \
	*(((volatile __u8 *)nandptr) + 0xa) = 0; \
} while(0)

#ifdef NAND_NO_RB
/* constant delay (see also tR in the datasheet) */
#define NAND_WAIT_READY(nand) do { \
	udelay(12); \
} while (0)
#else
/* use the R/B pin */
#endif

#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)(adr + 0x2)) = (__u8)(d); } while(0)
#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)(adr + 0x1)) = (__u8)(d); } while(0)
#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)(adr + 0x0)) = (__u8)d; } while(0)
#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)(adr + 0x0)))

#endif /* CFG_CMD_NAND */

/*-----------------------------------------------------------------------
 * Hard Reset Configuration Words
 *
 * if you change bits in the HRCW, you must also change the CFG_*
 * defines for the various registers affected by the HRCW e.g. changing
 * HRCW_DPPCxx requires you to also change CFG_SIUMCR.
 */
#define CFG_HRCW_MASTER	(HRCW_BPS01 | HRCW_BMS | HRCW_ISB100 | HRCW_APPC10 | HRCW_MODCK_H1000)

/* no slaves so just fill with zeros */
#define CFG_HRCW_SLAVE1		0
#define CFG_HRCW_SLAVE2		0
#define CFG_HRCW_SLAVE3		0
#define CFG_HRCW_SLAVE4		0
#define CFG_HRCW_SLAVE5		0
#define CFG_HRCW_SLAVE6		0
#define CFG_HRCW_SLAVE7		0

/*-----------------------------------------------------------------------
 * Internal Memory Mapped Register
 */
#define CFG_IMMR		0xF0000000

/*-----------------------------------------------------------------------
 * Definitions for initial stack pointer and data area (in DPRAM)
 */
#define CFG_INIT_RAM_ADDR	CFG_IMMR
#define CFG_INIT_RAM_END	0x2000  /* End of used area in DPRAM    */
#define CFG_GBL_DATA_SIZE	128 /* 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
 *
 * 60x SDRAM is mapped at CFG_SDRAM_BASE
 */
#define CFG_SDRAM_BASE		0x00000000
#define CFG_FLASH_BASE		CFG_FLASH0_BASE
#define CFG_MONITOR_BASE	TEXT_BASE
#define CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor */
#define CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()*/

/*
 * Internal Definitions
 *
 * Boot Flags
 */
#define BOOTFLAG_COLD		0x01	/* Normal Power-On: Boot from FLASH*/
#define BOOTFLAG_WARM		0x02	/* Software reboot                 */


/*-----------------------------------------------------------------------
 * Cache Configuration
 */
#define CFG_CACHELINE_SIZE      32      /* For MPC8260 CPU              */
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
# define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
#endif

/*-----------------------------------------------------------------------
 * HIDx - Hardware Implementation-dependent Registers                    2-11
 *-----------------------------------------------------------------------
 * HID0 also contains cache control - initially enable both caches and
 * invalidate contents, then the final state leaves only the instruction
 * cache enabled. Note that Power-On and Hard reset invalidate the caches,
 * but Soft reset does not.
 *
 * HID1 has only read-only information - nothing to set.
 */

#define CFG_HID0_INIT   (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI)
#define CFG_HID0_FINAL  0
#define CFG_HID2        0

/*-----------------------------------------------------------------------
 * RMR - Reset Mode Register                                     5-5
 *-----------------------------------------------------------------------
 * turn on Checkstop Reset Enable
 */
#define CFG_RMR         0

/*-----------------------------------------------------------------------
 * BCR - Bus Configuration                                       4-25
 *-----------------------------------------------------------------------
 */
#define CFG_BCR		0

/*-----------------------------------------------------------------------
 * SIUMCR - SIU Module Configuration                             4-31
 *-----------------------------------------------------------------------
 */
#define CFG_SIUMCR      (SIUMCR_DPPC00|SIUMCR_APPC10|SIUMCR_BCTLC01)

/*-----------------------------------------------------------------------
 * SYPCR - System Protection Control                             4-35
 * SYPCR can only be written once after reset!
 *-----------------------------------------------------------------------
 * Watchdog & Bus Monitor Timer max, 60x Bus Monitor enable
 */
#if defined(CONFIG_WATCHDOG)
#define CFG_SYPCR       (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
			 SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE)
#else
#define CFG_SYPCR       (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
			 SYPCR_SWRI|SYPCR_SWP)
#endif /* CONFIG_WATCHDOG */

/*-----------------------------------------------------------------------
 * TMCNTSC - Time Counter Status and Control                     4-40
 *-----------------------------------------------------------------------
 * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
 * and enable Time Counter
 */
#define CFG_TMCNTSC     (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE)

/*-----------------------------------------------------------------------
 * PISCR - Periodic Interrupt Status and Control                 4-42
 *-----------------------------------------------------------------------
 * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
 * Periodic timer
 */
#define CFG_PISCR       (PISCR_PS|PISCR_PTF|PISCR_PTE)

/*-----------------------------------------------------------------------
 * SCCR - System Clock Control                                   9-8
 *-----------------------------------------------------------------------
 * Ensure DFBRG is Divide by 16
 */
#define CFG_SCCR        (0x00000028 | SCCR_DFBRG01)

/*-----------------------------------------------------------------------
 * RCCR - RISC Controller Configuration                         13-7
 *-----------------------------------------------------------------------
 */
#define CFG_RCCR        0

/*
 * Init Memory Controller:
 *
 * Bank Bus     Machine PortSz  Device
 * ---- ---     ------- ------  ------
 *  0   60x     GPCM    16 bit  FLASH
 *  1   60x     GPCM     8 bit  NAND
 *  2   60x     SDRAM   32 bit  SDRAM
 *  3   60x     GPCM     8 bit  UART
 *
 */

#define SDRAM_MAX_SIZE	0x08000000	/* max. 128 MB		*/

/* Minimum mask to separate preliminary
 * address ranges for CS[0:2]
 */
#define CFG_GLOBAL_SDRAM_LIMIT	(32<<20)	/* less than 32 MB */

#define CFG_MPTPR       0x6600

/*-----------------------------------------------------------------------------
 * Address for Mode Register Set (MRS) command
 *-----------------------------------------------------------------------------
 */
#define CFG_MRS_OFFS	0x00000110


/* Bank 0 - FLASH
 */
#define CFG_BR0_PRELIM  ((CFG_FLASH_BASE & BRx_BA_MSK)  |\
			 BRx_PS_8                       |\
			 BRx_MS_GPCM_P                  |\
			 BRx_V)

#define CFG_OR0_PRELIM  (MEG_TO_AM(CFG_FLASH_SIZE)      |\
			 ORxG_SCY_6_CLK                 )

#if (CONFIG_COMMANDS & CFG_CMD_NAND)
/* Bank 1 - NAND Flash
*/
#define	CFG_NAND_BASE		CFG_NAND0_BASE
#define	CFG_NAND_SIZE		0x8000

#define CFG_OR_TIMING_NAND	0x000036

#define CFG_BR1_PRELIM  ((CFG_NAND_BASE & BRx_BA_MSK) | BRx_PS_8 | BRx_MS_GPCM_P | BRx_V  )
#define CFG_OR1_PRELIM  (P2SZ_TO_AM(CFG_NAND_SIZE) | CFG_OR_TIMING_NAND )
#endif

/* Bank 2 - 60x bus SDRAM
 */
#define CFG_PSRT        0x20
#define CFG_LSRT        0x20

#define CFG_BR2_PRELIM  ((CFG_SDRAM_BASE & BRx_BA_MSK)  |\
			 BRx_PS_32                      |\
			 BRx_MS_SDRAM_P                 |\
			 BRx_V)

#define CFG_OR2_PRELIM	CFG_OR2


/* SDRAM initialization values
*/
#define CFG_OR2    ((~(CFG_GLOBAL_SDRAM_LIMIT-1) & ORxS_SDAM_MSK) |\
			 ORxS_BPD_4                     |\
			 ORxS_ROWST_PBI0_A10             |\
			 ORxS_NUMR_12)

#define CFG_PSDMR  (PSDMR_SDAM_A13_IS_A5 |\
			 PSDMR_BSMA_A15_A17           |\
			 PSDMR_SDA10_PBI0_A11         |\
			 PSDMR_RFRC_5_CLK               |\
			 PSDMR_PRETOACT_2W              |\
			 PSDMR_ACTTORW_2W               |\
			 PSDMR_BL                       |\
			 PSDMR_LDOTOPRE_2C              |\
			 PSDMR_WRC_3C                   |\
			 PSDMR_CL_3)

/* Bank 3 - UART
*/

#define CFG_BR3_PRELIM  ((CFG_UART_BASE & BRx_BA_MSK) | BRx_PS_8 | BRx_MS_GPCM_P | BRx_V  )
#define CFG_OR3_PRELIM  (((-CFG_UART_SIZE) & ORxG_AM_MSK) | ORxG_CSNT | ORxG_SCY_1_CLK | ORxG_TRLX )

#endif	/* __CONFIG_H */