/* U-Boot for BlackVME. (C) Wojtek Skulski 2010. * The board includes ADSP-BF561 rev. 0.5, * 32-bit SDRAM (2 * MT48LC16M16A2TG or MT48LC32M16A2TG), * Gigabit Ether AX88180 (ASIX) + 88E1111 rev. B2 (Marvell), * SPI boot flash on PF2 (M25P64 8MB, or M25P128 16 MB), * FPGA boot flash on PF3 (M25P64 8MB, or M25P128 16 MB), * Spartan6-LX150 (memory-mapped; both PPIs also connected). * See http://www.skutek.com */ #ifndef __CONFIG_BLACKVME_H__ #define __CONFIG_BLACKVME_H__ #include /* Debugging: Set these options if you're having problems * #define CONFIG_DEBUG_EARLY_SERIAL * #define DEBUG * #define CONFIG_DEBUG_DUMP * #define CONFIG_DEBUG_DUMP_SYMS * CONFIG_PANIC_HANG means that the board will not auto-reboot */ #define CONFIG_PANIC_HANG 0 /* CPU Options */ #define CONFIG_BFIN_CPU bf561-0.5 #define CONFIG_BFIN_BOOT_MODE BFIN_BOOT_SPI_MASTER /* * CLOCK SETTINGS CAVEAT * You CANNOT just change the clock settings, esp. the SCLK. * The SDRAM timing, SPI baud, and the serial UART baud * use SCLK frequency to set their own frequencies. Therefore, * if you change the SCLK_DIV, you may also have to adjust * SDRAM refresh and other timings. * -------------------------------------------------------------- * CCLK = (CLKIN * VCO_MULT) / CCLK_DIV * 25 * 8 / 1 = 200 MHz * 25 * 16 / 1 = 400 MHz * 25 * 24 / 1 = 600 MHz * SCLK = (CLKIN * VCO_MULT) / SCLK_DIV * 25 * 8 / 2 = 100 MHz * 25 * 24 / 6 = 100 MHz * 25 * 24 / 5 = 120 MHz * 25 * 16 / 3 = 133 MHz * 25 MHz because the oscillator also feeds the ether chip. * CONFIG_CLKIN_HZ is 25 MHz written in Hz * CLKIN_HALF controls the DF bit in PLL_CTL * 0 = CLKIN 1 = CLKIN / 2 * PLL_BYPASS controls the BYPASS bit in PLL_CTL * 0 = do not bypass 1 = bypass PLL * VCO_MULT = MSEL (multiplier) in PLL_CTL * Values can range from 0-63 (where 0 means 64) * CCLK_DIV = core clock divider (1, 2, 4, or 8 ONLY) * SCLK_DIV = system clock divider, 1 to 15 */ #define CONFIG_CLKIN_HZ 25000000 #define CONFIG_CLKIN_HALF 0 #define CONFIG_PLL_BYPASS 0 #define CONFIG_VCO_MULT 8 #define CONFIG_CCLK_DIV 1 #define CONFIG_SCLK_DIV 2 /* * Ether chip in async memory space AMS3, same as BF561-EZ-KIT. * Used in 32-bit mode. 16-bit mode not supported. * http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:ax88180 */ /* * Network settings using a dedicated 2nd ether card in PC * Windows will automatically acquire IP of that card * Then use the dedicated card IP + 1 for the board * http://docs.blackfin.uclinux.org/doku.php?id=setting_up_the_network */ #define CONFIG_DRIVER_AX88180 1 #define AX88180_BASE 0x2c000000 #define CONFIG_HOSTNAME blackvme /* Bfin board */ #define CONFIG_IPADDR 169.254.144.145 /* Bfin board */ #define CONFIG_GATEWAYIP 169.254.144.144 /* dedic card */ #define CONFIG_SERVERIP 169.254.144.144 /* tftp server */ #define CONFIG_NETMASK 255.255.255.0 #define CONFIG_ROOTPATH "/export/uClinux-dist/romfs" /*NFS*/ #define CFG_AUTOLOAD "no" /* * SDRAM settings & memory map */ #define CONFIG_MEM_SIZE 64 /* 128, 64, 32, 16 */ #define CONFIG_MEM_ADD_WDTH 9 /* 8, 9, 10, 11 */ /* * SDRAM reference page * http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram * NOTE: BlackVME populates only SDRAM bank 0 */ /* CONFIG_EBIU_SDBCTL_VAL bank ctrl may be needed in future */ #define CONFIG_EBIU_SDGCTL_VAL 0x91114d /* global control */ #define CONFIG_EBIU_SDRRC_VAL 0x306 /* refresh rate */ /* Async memory global settings. (ASRAM, not SDRAM) * HRM page 16-10. Global ASRAM control = 0x3F. Six lower bits = 1 * CLKOUT enabled, all async banks enabled, core has priority * bank 0&1 16 bit (FPGA) * bank 2&3 32 bit (ether and USB chips) */ #define CONFIG_EBIU_AMGCTL_VAL 0x3F /* ASRAM setup */ /* Async mem timing: BF561 HRM page 16-12 and 16-15. * Default values 0xFFC2 FFC2 are the slowest supported. * Example settings of CONFIG_EBIU_AMBCTL1_VAL * 1. EZ-KIT settings: 0xFFC2 7BB0 * 2. Bank 3 good timing for AX88180 @ 125MHz = 0x8850 xxxx * See the following page: * http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:ax88180 * 3. Bank 3 timing for AX88180 @ SCLK = 100 MHz: * AX88180 WEN = 5 clocks REN 6 clocks @ SCLK = 100 MHz * One extra clock needed because AX88180 is asynchronous to CPU. */ /* bank 1 0 */ #define CONFIG_EBIU_AMBCTL0_VAL 0xFFC2FFC2 /* bank 3 2 */ #define CONFIG_EBIU_AMBCTL1_VAL 0xFFC2FFC2 /* memory layout */ #define CONFIG_SYS_MONITOR_LEN (256 << 10) #define CONFIG_SYS_MALLOC_LEN (384 << 10) /* * Serial SPI Flash * For the M25P64 SCK should be kept < 15 MHz */ #define CONFIG_BFIN_SPI #define CONFIG_ENV_IS_IN_SPI_FLASH #define CONFIG_ENV_OFFSET 0x40000 #define CONFIG_ENV_SIZE 0x2000 #define CONFIG_ENV_SECT_SIZE 0x40000 #define CONFIG_ENV_SPI_MAX_HZ 15000000 #define CONFIG_SF_DEFAULT_SPEED 15000000 /* * Interactive command settings */ #define CONFIG_SYS_LONGHELP 1 #define CONFIG_CMDLINE_EDITING 1 #define CONFIG_AUTO_COMPLETE 1 #define CONFIG_CMD_BOOTLDR #define CONFIG_CMD_CPLBINFO /* * Default: boot from SPI flash. * "sfboot" is a composite command defined in extra settings */ #define CONFIG_BOOTCOMMAND "run sfboot" /* * Console settings */ #define CONFIG_LOADS_ECHO 1 #define CONFIG_UART_CONSOLE 0 #define CONFIG_BFIN_SERIAL /* * U-Boot environment variables. Use "printenv" to examine. * http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:env */ #define CONFIG_BOOTARGS \ "root=/dev/mtdblock0 rw " \ "clkin_hz=" __stringify(CONFIG_CLKIN_HZ) " " \ "earlyprintk=serial,uart0," \ __stringify(CONFIG_BAUDRATE) " " \ "console=ttyBF0," __stringify(CONFIG_BAUDRATE) " " /* Convenience env variables & commands. * Reserve kernstart = 0x20000 = 128 kB for U-Boot. * Reserve kernarea = 0x500000 = 5 MB for kernel (reasonable size). * U-Boot image is saved at flash offset=0. * Kernel image is saved at flash offset=$kernstart. * Instructions. Ksave takes about a minute to complete. * 1. Update U-Boot: run uget; run usave * 2. Update kernel: run kget; run ksave * After updating U-Boot also update the kernel per above instructions * to make the saved environment consistent with the flash. */ #define CONFIG_EXTRA_ENV_SETTINGS \ "kernstart=0x20000\0" \ "kernarea=0x500000\0" \ "uget=tftp u-boot.ldr\0" \ "kget=tftp uImage\0" \ "usave=sf probe 2; " \ "sf erase 0 $(kernstart); " \ "sf write $(fileaddr) 0 $(filesize)\0" \ "ksave=sf probe 2; " \ "saveenv; " \ "echo Now patiently wait for the prompt...; " \ "sf erase $(kernstart) $(kernarea); " \ "sf write $(fileaddr) $(kernstart) $(filesize)\0" \ "sfboot=sf probe 2; " \ "sf read $(loadaddr) $(kernstart) $(filesize); " \ "run addip; bootm\0" \ "addip=setenv bootargs $(bootargs) " \ "ip=$(ipaddr):$(serverip):$(gatewayip):" \ "$(netmask):$(hostname):eth0:off\0" /* * Soft I2C settings (BF561 does not have hard I2C) * PF12,13 on SPI connector 0. */ #ifdef CONFIG_SYS_I2C_SOFT # define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF12 # define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF13 # define CONFIG_SYS_I2C_SPEED 50000 # define CONFIG_SYS_I2C_SLAVE 0xFE #endif #undef CONFIG_CMD_JFFS2 #endif