| /* | 
 |  * (C) Copyright 2005 REA Elektronik GmbH <www.rea.de> | 
 |  * Anders Larsen <alarsen@rea.de> | 
 |  * | 
 |  * Configuation settings for the Cogent CSB637 board. | 
 |  * | 
 |  * 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 | 
 |  */ | 
 |  | 
 | #ifndef __CONFIG_H | 
 | #define __CONFIG_H | 
 |  | 
 | /* ARM asynchronous clock */ | 
 | #define AT91C_MAIN_CLOCK	184320000	/* from 3.6864 MHz crystal (3686400 * 50) */ | 
 | #define AT91C_MASTER_CLOCK	46080000	/* (AT91C_MAIN_CLOCK/4)	peripheral clock */ | 
 |  | 
 | #define AT91_SLOW_CLOCK		32768	/* slow clock */ | 
 |  | 
 | #define CONFIG_ARM920T		1	/* This is an ARM920T Core	*/ | 
 | #define CONFIG_AT91RM9200	1	/* It's an Atmel AT91RM9200 SoC	*/ | 
 | #define CONFIG_CSB637		1	/* on a CSB637 board		*/ | 
 | #undef  CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/ | 
 | #define USE_920T_MMU		1 | 
 |  | 
 | #define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/ | 
 | #define CONFIG_SETUP_MEMORY_TAGS 1 | 
 | #define CONFIG_INITRD_TAG	1 | 
 |  | 
 | #ifndef CONFIG_SKIP_LOWLEVEL_INIT | 
 | #define CFG_USE_MAIN_OSCILLATOR		1 | 
 | /* flash */ | 
 | #define MC_PUIA_VAL	0x00000000 | 
 | #define MC_PUP_VAL	0x00000000 | 
 | #define MC_PUER_VAL	0x00000000 | 
 | #define MC_ASR_VAL	0x00000000 | 
 | #define MC_AASR_VAL	0x00000000 | 
 | #define EBI_CFGR_VAL	0x00000000 | 
 | #define SMC_CSR0_VAL	0x00003284 /* 16bit, 2 TDF, 4 WS */ | 
 |  | 
 | /* clocks */ | 
 | #define PLLAR_VAL	0x2031BE01 /* 184.320000 MHz for PCK */ | 
 | #define PLLBR_VAL	0x128A3E19 /* 47.996928 MHz (divider by 2 for USB) */ | 
 | #define MCKR_VAL	0x00000302 /* PCK/4 = MCK Master Clock = 46.080000 MHz from PLLA */ | 
 |  | 
 | /* sdram */ | 
 | #define PIOC_ASR_VAL	0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */ | 
 | #define PIOC_BSR_VAL	0x00000000 | 
 | #define PIOC_PDR_VAL	0xFFFF0000 | 
 | #define EBI_CSA_VAL	0x00000002 /* CS1=SDRAM */ | 
 | #define SDRC_CR_VAL	0x21914159 /* set up the SDRAM */ | 
 | #define SDRAM		0x20000000 /* address of the SDRAM */ | 
 | #define SDRAM1		0x20000080 /* address of the SDRAM */ | 
 | #define SDRAM_VAL	0x00000000 /* value written to SDRAM */ | 
 | #define SDRC_MR_VAL	0x00000002 /* Precharge All */ | 
 | #define SDRC_MR_VAL1	0x00000004 /* refresh */ | 
 | #define SDRC_MR_VAL2	0x00000003 /* Load Mode Register */ | 
 | #define SDRC_MR_VAL3	0x00000000 /* Normal Mode */ | 
 | #define SDRC_TR_VAL	0x000002E0 /* Write refresh rate */ | 
 | #endif	/* CONFIG_SKIP_LOWLEVEL_INIT */ | 
 | /* | 
 |  * Size of malloc() pool | 
 |  */ | 
 | #define CFG_MALLOC_LEN	(CFG_ENV_SIZE + 128*1024) | 
 | #define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */ | 
 |  | 
 | #define CONFIG_BAUDRATE 115200 | 
 |  | 
 | #define CFG_AT91C_BRGR_DIVISOR	75	/* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */ | 
 |  | 
 | /* | 
 |  * Hardware drivers | 
 |  */ | 
 |  | 
 | /* define one of these to choose the DBGU, USART0  or USART1 as console */ | 
 | #define CONFIG_DBGU | 
 | #undef CONFIG_USART0 | 
 | #undef CONFIG_USART1 | 
 |  | 
 | #undef	CONFIG_HWFLOW			/* don't include RTS/CTS flow control support	*/ | 
 |  | 
 | #undef	CONFIG_MODEM_SUPPORT		/* disable modem initialization stuff */ | 
 |  | 
 | #define CONFIG_BOOTDELAY      3 | 
 | /* #define CONFIG_ENV_OVERWRITE	1 */ | 
 |  | 
 |  | 
 | /* | 
 |  * BOOTP options | 
 |  */ | 
 | #define CONFIG_BOOTP_BOOTFILESIZE | 
 | #define CONFIG_BOOTP_BOOTPATH | 
 | #define CONFIG_BOOTP_GATEWAY | 
 | #define CONFIG_BOOTP_HOSTNAME | 
 |  | 
 |  | 
 | /* | 
 |  * Command line configuration. | 
 |  */ | 
 | #include <config_cmd_default.h> | 
 |  | 
 | #define CONFIG_CMD_DHCP | 
 | #define CONFIG_CMD_JFFS2 | 
 | #define CONFIG_CMD_PING | 
 |  | 
 | #ifdef	NAND_SUPPORT_HAS_BEEN_FIXED	/* NAND support is broken / unimplemented */ | 
 |  | 
 | #define CFG_MAX_NAND_DEVICE	1	/* Max number of NAND devices		*/ | 
 | #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 | 
 | #define NAND_MAX_CHIPS 1 | 
 |  | 
 | #define AT91_SMART_MEDIA_ALE (1 << 22)	/* our ALE is AD22 */ | 
 | #define AT91_SMART_MEDIA_CLE (1 << 21)	/* our CLE is AD21 */ | 
 |  | 
 | #include <asm/arch/AT91RM9200.h>	/* needed for port definitions */ | 
 | #define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0) | 
 | #define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0) | 
 |  | 
 | #define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2)) | 
 |  | 
 | #define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0) | 
 | #define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0) | 
 | #define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0) | 
 | #define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr)) | 
 | /* the following are NOP's in our implementation */ | 
 | #define NAND_CTL_CLRALE(nandptr) | 
 | #define NAND_CTL_SETALE(nandptr) | 
 | #define NAND_CTL_CLRCLE(nandptr) | 
 | #define NAND_CTL_SETCLE(nandptr) | 
 |  | 
 | #endif	/* NAND_SUPPORT_HAS_BEEN_FIXED */ | 
 |  | 
 | #define CONFIG_NR_DRAM_BANKS 1 | 
 | #define PHYS_SDRAM			0x20000000 | 
 | #define PHYS_SDRAM_SIZE			0x4000000  /* 64 megs */ | 
 |  | 
 | #define CFG_MEMTEST_START		PHYS_SDRAM | 
 | #define CFG_MEMTEST_END			CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 512*1024 - 4 | 
 | #define CFG_ALT_MEMTEST			1 | 
 | #define CFG_MEMTEST_SCRATCH		CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 4 | 
 |  | 
 | #define CONFIG_DRIVER_ETHER | 
 | #define CONFIG_NET_RETRY_COUNT		20 | 
 | #undef CONFIG_AT91C_USE_RMII | 
 |  | 
 | #undef CONFIG_HAS_DATAFLASH | 
 | #define CFG_SPI_WRITE_TOUT		(5*CFG_HZ) | 
 | #define CFG_MAX_DATAFLASH_BANKS		0 | 
 | #define CFG_MAX_DATAFLASH_PAGES		16384 | 
 | #define CFG_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* Logical adress for CS0 */ | 
 | #define CFG_DATAFLASH_LOGIC_ADDR_CS3	0xD0000000	/* Logical adress for CS3 */ | 
 |  | 
 | /* | 
 |  * FLASH Device configuration | 
 |  */ | 
 | #define PHYS_FLASH_1			0x10000000 | 
 | #define PHYS_FLASH_SIZE			0x800000  /* 8 megs main flash */ | 
 | #define CFG_FLASH_BASE			PHYS_FLASH_1 | 
 | #define CFG_FLASH_CFI		1	/* flash is CFI conformant	*/ | 
 | #define CONFIG_FLASH_CFI_DRIVER	1	/* use common cfi driver	*/ | 
 | #define CFG_FLASH_EMPTY_INFO | 
 | #define CFG_FLASH_USE_BUFFER_WRITE 1	/* use buffered writes (20x faster) */ | 
 | #define CFG_MAX_FLASH_BANKS	1	/* max # of memory banks	*/ | 
 | #define CFG_FLASH_INCREMENT	0	/* there is only one bank	*/ | 
 | #define CFG_FLASH_PROTECTION	1	/* hardware flash protection	*/ | 
 | #define CFG_MAX_FLASH_SECT		64 | 
 |  | 
 | #define CFG_JFFS2_FIRST_BANK	0 | 
 | #define CFG_JFFS2_FIRST_SECTOR	3 | 
 | #define CFG_JFFS2_NUM_BANKS	1 | 
 |  | 
 | #undef	CONFIG_ENV_IS_IN_DATAFLASH | 
 |  | 
 | #ifdef CONFIG_ENV_IS_IN_DATAFLASH | 
 | #define CFG_ENV_OFFSET			0x20000 | 
 | #define CFG_ENV_ADDR			(CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET) | 
 | #define CFG_ENV_SIZE			0x2000  /* 0x8000 */ | 
 | #else | 
 | #define CFG_ENV_IS_IN_FLASH		1 | 
 | #define CFG_ENV_ADDR			(PHYS_FLASH_1 + 0x20000)  /* after u-boot.bin */ | 
 | #define CFG_ENV_SIZE			0x20000 /* sectors are 128K here */ | 
 | #endif	/* CONFIG_ENV_IS_IN_DATAFLASH */ | 
 |  | 
 |  | 
 | #define CFG_LOAD_ADDR		0x21000000  /* default load address */ | 
 |  | 
 | #define CFG_BAUDRATE_TABLE	{ 115200, 57600, 38400, 19200, 9600 } | 
 |  | 
 | #define CFG_PROMPT		"U-Boot> "	/* Monitor Command Prompt */ | 
 | #define CFG_CBSIZE		256		/* Console I/O Buffer Size */ | 
 | #define CFG_MAXARGS		16		/* max number of command args */ | 
 | #define CFG_PBSIZE		(CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ | 
 |  | 
 | #define CFG_HZ 1000 | 
 | #define CFG_HZ_CLOCK AT91C_MASTER_CLOCK/2	/* AT91C_TC0_CMR is implicitly set to */ | 
 | 						/* AT91C_TC_TIMER_DIV1_CLOCK */ | 
 |  | 
 | #define CONFIG_STACKSIZE	(32*1024)	/* regular stack */ | 
 |  | 
 | #ifdef CONFIG_USE_IRQ | 
 | #error CONFIG_USE_IRQ not supported | 
 | #endif | 
 |  | 
 | #endif |