# # usbboot configuration file # # Utility to respond to the Ingenic XBurst USB boot protocol, provide # initial boot stages and ability to access NAND on device. # # Authors: Ingenic Semiconductor, Inc. # Xiangfu Liu # Marek Lindner # Wolfgang Spraul # # 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 3 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, see . # [PLL] EXTCLK = 12 #Define the external crystal in MHz CPUSPEED = 252 #Define the PLL output frequency PHMDIV = 3 #Define the frequency divider ratio of PLL=CCLK:PCLK=HCLK=MCLK BOUDRATE = 57600 #Define the uart boudrate USEUART = 0 #Use which uart, 0/1 for jz4740,0/1/2/3 for jz4750 # [SDRAM] BUSWIDTH = 16 #The bus width of the SDRAM in bits (16|32) BANKS = 4 #The bank number (2|4) ROWADDR = 13 #Row address width in bits (11-13) COLADDR = 9 #Column address width in bits (8-12) ISMOBILE = 0 #Define whether SDRAM is mobile SDRAM, this only valid for Jz4750 ,1:yes 0:no ISBUSSHARE = 1 #Define whether SDRAM bus share with NAND 1:shared 0:unshared DEBUGOPS = 0 # [NAND] NAND_BUSWIDTH = 8 #The width of the NAND flash chip in bits (8|16|32) NAND_ROWCYCLES = 3 #The row address cycles (2|3) NAND_PAGESIZE = 2048 #The page size of the NAND chip in bytes(512|2048|4096) NAND_PAGEPERBLOCK = 128 #The page number per block NAND_FORCEERASE = 1 #The force to erase flag (0|1) NAND_OOBSIZE = 64 #oob size in byte NAND_ECCPOS = 6 #Specify the ECC offset inside the oob data (0-[oobsize-1]) NAND_BADBLOCKPOS = 0 #Specify the badblock flag offset inside the oob (0-[oobsize-1]) NAND_BADBLOCKPAGE = 127 #Specify the page number of badblock flag inside a block(0-[PAGEPERBLOCK-1]) NAND_PLANENUM = 1 #The planes number of target nand flash NAND_BCHBIT = 4 #Specify the hardware BCH algorithm for 4750 (4|8) NAND_WPPIN = 0 #Specify the write protect pin number NAND_BLOCKPERCHIP = 0 #Specify the block number per chip,0 means ignore #The program will calculate the total SDRAM size by : size = 2^(ROWADDR + COLADDR) * BANKNUM * (SDRAMWIDTH / 4) #The CPUSPEED has restriction as: ( CPUSPEED % EXTCLK == 0 ) && ( CPUSPEED % 12 == 0 ) #For jz4750, the program just init BANK0(DSC0). #Beware all variables must be set correct!