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							| @@ -0,0 +1,452 @@ | |||||||
|  | /* | ||||||
|  |  * (C) Copyright 2000-2002 | ||||||
|  |  * 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_R360MPI		1 | ||||||
|  |  | ||||||
|  | #define CONFIG_LCD | ||||||
|  | #undef  CONFIG_EDT32F10 | ||||||
|  | #define CONFIG_SHARP_LQ057Q3DC02 | ||||||
|  |  | ||||||
|  | #define MPC8XX_FACT             1		/* Multiply by 1	*/ | ||||||
|  | #define MPC8XX_XIN              50000000	/* 50 MHz in		*/ | ||||||
|  | #define CONFIG_8xx_GCLK_FREQ    50000000 /* define if can't use get_gclk_freq */ | ||||||
|  |  | ||||||
|  | #define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/ | ||||||
|  | #undef	CONFIG_8xx_CONS_SMC2 | ||||||
|  | #undef	CONFIG_8xx_CONS_NONE | ||||||
|  | #define CONFIG_BAUDRATE		9600	/* console baudrate = 9600bps	*/ | ||||||
|  | #if 0 | ||||||
|  | #define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/ | ||||||
|  | #else | ||||||
|  | #define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/ | ||||||
|  | #endif | ||||||
|  |  | ||||||
|  | #define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */ | ||||||
|  |  | ||||||
|  | #define CONFIG_PREBOOT	"echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo" | ||||||
|  |  | ||||||
|  | #undef	CONFIG_BOOTARGS | ||||||
|  | #define CONFIG_BOOTCOMMAND							\ | ||||||
|  | 	"bootp; " 								\ | ||||||
|  | 	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " 	\ | ||||||
|  | 	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off; " 	\ | ||||||
|  | 	"bootm" | ||||||
|  |  | ||||||
|  | #undef	CONFIG_SCC1_ENET | ||||||
|  | #define	CONFIG_SCC2_ENET | ||||||
|  |  | ||||||
|  | #define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/ | ||||||
|  | #undef	CFG_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/ | ||||||
|  |  | ||||||
|  | #define	CONFIG_MISC_INIT_R		/* have misc_init_r() function	*/ | ||||||
|  |  | ||||||
|  | #undef	CONFIG_WATCHDOG			/* watchdog disabled		*/ | ||||||
|  |  | ||||||
|  | #if 0 | ||||||
|  | #ifdef CONFIG_LCD | ||||||
|  | # undef	 CONFIG_STATUS_LED		/* disturbs display		*/ | ||||||
|  | #else | ||||||
|  | # define CONFIG_STATUS_LED	1	/* Status LED enabled		*/ | ||||||
|  | #endif	/* CONFIG_LCD */ | ||||||
|  | #endif | ||||||
|  |  | ||||||
|  | #undef	CONFIG_CAN_DRIVER		/* CAN Driver support disabled	*/ | ||||||
|  |  | ||||||
|  | #define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE) | ||||||
|  |  | ||||||
|  | #define CONFIG_MAC_PARTITION | ||||||
|  | #define CONFIG_DOS_PARTITION | ||||||
|  |  | ||||||
|  | #define	CONFIG_RTC_MPC8xx		/* use internal RTC of MPC8xx	*/ | ||||||
|  |  | ||||||
|  | #define CONFIG_HARD_I2C		1	/* To I2C with hardware support */ | ||||||
|  | #undef CONFIG_SORT_I2C			/* To I2C with software support */ | ||||||
|  | #define CFG_I2C_SPEED		4700	/* I2C speed and slave address */ | ||||||
|  | #define CFG_I2C_SLAVE		0x7F | ||||||
|  |  | ||||||
|  | /* | ||||||
|  |  * Software (bit-bang) I2C driver configuration | ||||||
|  |  */ | ||||||
|  | #define PB_SCL			0x00000020	/* PB 26 */ | ||||||
|  | #define PB_SDA			0x00000010	/* PB 27 */ | ||||||
|  |  | ||||||
|  | #define I2C_INIT		(immr->im_cpm.cp_pbdir |=  PB_SCL) | ||||||
|  | #define I2C_ACTIVE		(immr->im_cpm.cp_pbdir |=  PB_SDA) | ||||||
|  | #define I2C_TRISTATE		(immr->im_cpm.cp_pbdir &= ~PB_SDA) | ||||||
|  | #define I2C_READ		((immr->im_cpm.cp_pbdat & PB_SDA) != 0) | ||||||
|  | #define I2C_SDA(bit)		if(bit) immr->im_cpm.cp_pbdat |=  PB_SDA; \ | ||||||
|  | 				else    immr->im_cpm.cp_pbdat &= ~PB_SDA | ||||||
|  | #define I2C_SCL(bit)		if(bit) immr->im_cpm.cp_pbdat |=  PB_SCL; \ | ||||||
|  | 				else    immr->im_cpm.cp_pbdat &= ~PB_SCL | ||||||
|  | #define I2C_DELAY		udelay(50) | ||||||
|  |  | ||||||
|  | #define CFG_I2C_PWM_ADDR	0x58	/* Power management coprocessor */ | ||||||
|  | #define CFG_I2C_KBD_ADDR	0x50	/* Keyboard coprocessor */ | ||||||
|  | #define CFG_I2C_TERM_ADDR	0x49	/* Temperature Sensors */ | ||||||
|  |  | ||||||
|  | #define CONFIG_COMMANDS	      ( CONFIG_CMD_DFL	| \ | ||||||
|  | 				CFG_CMD_DHCP	| \ | ||||||
|  | 				CFG_CMD_DATE	| \ | ||||||
|  | 				CFG_CMD_I2C	| \ | ||||||
|  | 				CFG_CMD_IDE	| \ | ||||||
|  | 				CFG_CMD_PCMCIA	| \ | ||||||
|  | 				CFG_CMD_BSP	) | ||||||
|  |  | ||||||
|  | /* 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		0xFF000000 | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * 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 | ||||||
|  | #if defined(DEBUG) | ||||||
|  | #define	CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/ | ||||||
|  | #else | ||||||
|  | #define	CFG_MONITOR_LEN		(192 << 10)	/* Reserve 192 kB for Monitor	*/ | ||||||
|  | #endif | ||||||
|  | #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	CFG_ENV_OFFSET		0x40000	/* Offset of Environment		*/ | ||||||
|  | #define	CFG_ENV_SECT_SIZE	0x20000	/* Total Size of Environment sector	*/ | ||||||
|  | #define	CFG_ENV_SIZE		0x4000	/* Used Size of Environment sector	*/ | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * 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_SWRI| SYPCR_SWP) | ||||||
|  | #else | ||||||
|  | #define CFG_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 | ||||||
|  |  */ | ||||||
|  | #ifndef	CONFIG_CAN_DRIVER | ||||||
|  | #define CFG_SIUMCR	(SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) | ||||||
|  | #else	/* we must activate GPL5 in the SIUMCR for CAN */ | ||||||
|  | #define CFG_SIUMCR	(SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01) | ||||||
|  | #endif	/* CONFIG_CAN_DRIVER */ | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * TBSCR - Time Base Status and Control				11-26 | ||||||
|  |  *----------------------------------------------------------------------- | ||||||
|  |  * Clear Reference Interrupt Status, Timebase freezing enabled | ||||||
|  |  */ | ||||||
|  | #define CFG_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBE) | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * RTCSC - Real-Time Clock Status and Control Register		11-27 | ||||||
|  |  *----------------------------------------------------------------------- | ||||||
|  |  */ | ||||||
|  | #define CFG_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 CFG_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 this is a 80 MHz CPU, set PLL multiplication factor to 5 (5*16=80)! | ||||||
|  |  */ | ||||||
|  | #ifdef	CONFIG_80MHz	/* for 80 MHz, we use a 16 MHz clock * 5 */ | ||||||
|  | #define CFG_PLPRCR							\ | ||||||
|  | 		( (5-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST ) | ||||||
|  | #else			/* up to 50 MHz we use a 1:1 clock */ | ||||||
|  | #define CFG_PLPRCR	(PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) | ||||||
|  | #endif	/* CONFIG_80MHz */ | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * 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 | ||||||
|  |  */ | ||||||
|  | #define SCCR_MASK	SCCR_EBDF11 | ||||||
|  | #define CFG_SCCR	(SCCR_TBS     | \ | ||||||
|  | 			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \ | ||||||
|  | 			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \ | ||||||
|  | 			 SCCR_DFALCD00) | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * PCMCIA stuff | ||||||
|  |  *----------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  */ | ||||||
|  | #define CFG_PCMCIA_MEM_ADDR	(0xE0000000) | ||||||
|  | #define CFG_PCMCIA_MEM_SIZE	( 64 << 20 ) | ||||||
|  | #define CFG_PCMCIA_DMA_ADDR	(0xE4000000) | ||||||
|  | #define CFG_PCMCIA_DMA_SIZE	( 64 << 20 ) | ||||||
|  | #define CFG_PCMCIA_ATTRB_ADDR	(0xE8000000) | ||||||
|  | #define CFG_PCMCIA_ATTRB_SIZE	( 64 << 20 ) | ||||||
|  | #define CFG_PCMCIA_IO_ADDR	(0xEC000000) | ||||||
|  | #define CFG_PCMCIA_IO_SIZE	( 64 << 20 ) | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter) | ||||||
|  |  *----------------------------------------------------------------------- | ||||||
|  |  */ | ||||||
|  |  | ||||||
|  | #if 1 | ||||||
|  | #define	CONFIG_IDE_8xx_PCCARD	1	/* Use IDE with PC Card	Adapter	*/ | ||||||
|  |  | ||||||
|  | #undef	CONFIG_IDE_8xx_DIRECT		/* Direct IDE    not supported	*/ | ||||||
|  | #undef	CONFIG_IDE_LED			/* LED   for ide not supported	*/ | ||||||
|  | #undef	CONFIG_IDE_RESET		/* reset for ide not supported	*/ | ||||||
|  |  | ||||||
|  | #define CFG_IDE_MAXBUS		1	/* max. 1 IDE bus		*/ | ||||||
|  | #define CFG_IDE_MAXDEVICE	1	/* max. 1 drive per IDE bus	*/ | ||||||
|  |  | ||||||
|  | #define CFG_ATA_IDE0_OFFSET	0x0000 | ||||||
|  |  | ||||||
|  | #define CFG_ATA_BASE_ADDR	CFG_PCMCIA_MEM_ADDR | ||||||
|  |  | ||||||
|  | /* Offset for data I/O			*/ | ||||||
|  | #define CFG_ATA_DATA_OFFSET	(CFG_PCMCIA_MEM_SIZE + 0x320) | ||||||
|  |  | ||||||
|  | /* Offset for normal register accesses	*/ | ||||||
|  | #define CFG_ATA_REG_OFFSET	(2 * CFG_PCMCIA_MEM_SIZE + 0x320) | ||||||
|  |  | ||||||
|  | /* Offset for alternate registers	*/ | ||||||
|  | #define CFG_ATA_ALT_OFFSET	0x0100 | ||||||
|  | #endif | ||||||
|  |  | ||||||
|  | /*----------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  *----------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  */ | ||||||
|  | #define	CFG_DER	0x2002000F | ||||||
|  | /*#define CFG_DER	0*/ | ||||||
|  |  | ||||||
|  | /* | ||||||
|  |  * Init Memory Controller: | ||||||
|  |  * | ||||||
|  |  * BR0/1 and OR0/1 (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	0xFF000000	/* OR addr mask */ | ||||||
|  |  | ||||||
|  | /* | ||||||
|  |  * FLASH timing: | ||||||
|  |  */ | ||||||
|  | #define CFG_OR_TIMING_FLASH	(OR_ACS_DIV1 | OR_SCY_7_CLK | OR_BI) | ||||||
|  |  | ||||||
|  | #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 and OR1 (SDRAM) | ||||||
|  |  * | ||||||
|  |  */ | ||||||
|  | #define SDRAM_BASE1_PRELIM	0x00000000	/* SDRAM bank #0	*/ | ||||||
|  | #define	SDRAM_MAX_SIZE		0x04000000	/* max 64 MB per bank	*/ | ||||||
|  |  | ||||||
|  | #define CFG_PRELIM_OR1_AM	0xF8000000	/* OR addr mask */ | ||||||
|  |  | ||||||
|  | /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care)	*/ | ||||||
|  | #define CFG_OR_TIMING_SDRAM	(OR_ACS_DIV1  | OR_CSNT_SAM | \ | ||||||
|  | 				 OR_SCY_0_CLK | OR_G5LS) | ||||||
|  |  | ||||||
|  | #define CFG_OR1_PRELIM	(CFG_PRELIM_OR1_AM | CFG_OR_TIMING_SDRAM ) | ||||||
|  | #define CFG_BR1_PRELIM	((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | ||||||
|  |  | ||||||
|  |  | ||||||
|  | /* | ||||||
|  |  * 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 | ||||||
|  |  */ | ||||||
|  | #if   defined(CONFIG_80MHz) | ||||||
|  | #define CFG_MAMR_PTA		156 | ||||||
|  | #elif defined(CONFIG_66MHz) | ||||||
|  | #define CFG_MAMR_PTA		129 | ||||||
|  | #else		/*   50 MHz */ | ||||||
|  | #define CFG_MAMR_PTA		 98 | ||||||
|  | #endif	/*CONFIG_??MHz */ | ||||||
|  |  | ||||||
|  | /* | ||||||
|  |  * 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 CFG_MPTPR_2BK_2K	MPTPR_PTP_DIV32		for 2 banks | ||||||
|  |  * #define CFG_MPTPR_1BK_2K	MPTPR_PTP_DIV64		for 1 bank | ||||||
|  |  */ | ||||||
|  | #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			*/ | ||||||
|  |  | ||||||
|  | #endif	/* __CONFIG_H */ | ||||||
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