# ------------------------------------------------------------------------- # KaRo TX25 CPU Module on a StarterkitV base board # http://www.karo-electronics.com/tx25.html # ------------------------------------------------------------------------- source [find tcl/target/imx25.cfg] #------------------------------------------------------------------------- # Declare Nand #------------------------------------------------------------------------- nand device K9F1G08UOC mxc imx25.cpu mx25 hwecc biswap $_TARGETNAME configure -event gdb-attach { reset init } $_TARGETNAME configure -event reset-init { tx25_init } proc tx25_init { } { #------------------------------------------------------------------------- # AIPS setup - Only setup MPROTx registers. The PACR default values are good. # Set all MPROTx to be non-bufferable, trusted for R/W, # not forced to user-mode. #------------------------------------------------------------------------- mww 0x43f00000 0x77777777 mww 0x43f00004 0x77777777 mww 0x53f00000 0x77777777 mww 0x53f00004 0x77777777 sleep 100 #------------------------------------------------------------------------- # MAX (Multi-Layer AHB Crossbar Switch) setup # MPR - priority for MX25 is (SDHC2/SDMA)>USBOTG>RTIC>IAHB>DAHB #------------------------------------------------------------------------- mww 0x43f04000 0x00043210 mww 0x43f04100 0x00043210 mww 0x43f04200 0x00043210 mww 0x43f04300 0x00043210 mww 0x43f04400 0x00043210 # SGPCR - always park on last master mww 0x43f04010 0x10 mww 0x43f04110 0x10 mww 0x43f04210 0x10 mww 0x43f04310 0x10 mww 0x43f04410 0x10 # MGPCR - restore default values mww 0x43f04800 0x0 mww 0x43f04900 0x0 mww 0x43f04a00 0x0 mww 0x43f04b00 0x0 mww 0x43f04c00 0x0 # Configure M3IF registers # M3IF Control Register (M3IFCTL) for MX25 # MRRP[0] = LCDC on priority list (1 << 0) = 0x00000001 # MRRP[1] = MAX1 not on priority list (0 << 1) = 0x00000000 # MRRP[2] = MAX0 not on priority list (0 << 2) = 0x00000000 # MRRP[3] = USB HOST not on priority list (0 << 3) = 0x00000000 # MRRP[4] = SDMA not on priority list (0 << 4) = 0x00000000 # MRRP[5] = SD/ATA/FEC not on priority list (0 << 5) = 0x00000000 # MRRP[6] = SCMFBC not on priority list (0 << 6) = 0x00000000 # MRRP[7] = CSI not on priority list (0 << 7) = 0x00000000 # ---------- # 0x00000001 mww 0xb8003000 0x00000001 #------------------------------------------------------------------------- # configure ARM CLK #------------------------------------------------------------------------- # Set the Clock CTL (HRM p. 355) mww 0x53F80008 0x20034000 # Setup Clock Gating CTL 0-2 (HRM p. 357) mww 0x53F8000C 0x1fffffff mww 0x53F80010 0xffffffff mww 0x53F80014 0x000fdfff #------------------------------------------------------------------------- # SDRAM initialization #------------------------------------------------------------------------- # set to 3.3v SDRAM mww 0x43FAC454 0x00000800 # reset (set up ESDMISC) mww 0xB8001010 0x00000002 # Setup for SDRAM Bank 0 #------------------------------------------------------------------------- # Write ESDCFG0 mww 0xB8001004 0x00095728 # CTL SMode = Precharge command mww 0xB8001000 0x92116480 mww 0x80000400 0x00000000 # CTL SMode = Auto Refresh command mww 0xB8001000 0xA2116480 mww 0x80000000 0x0 mww 0x80000000 0x0 mww 0x80000000 0x0 mww 0x80000000 0x0 mww 0x80000000 0x0 mww 0x80000000 0x0 mww 0x80000000 0x0 mww 0x80000000 0x0 # CTL SMode = Load Mode Register command mww 0xB8001000 0xB2116480 mwb 0x80000033 0x00 # CTL SMode = normal mww 0xB8001000 0x82116480 # Setup for SDRAM Bank 1 #------------------------------------------------------------------------- # Write ESDCFG1 mww 0xB800100C 0x00095728 # CTL SMode = Precharge command mww 0xB8001008 0x92116480 mww 0x90000400 0x00000000 # CTL SMode = Auto Refresh command mww 0xB8001008 0xA2116480 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 mww 0x90000000 0x00000000 # CTL SMode = Load Mode Register command mww 0xB8001008 0xB2116480 mwb 0x90000033 0x00 # CTL SMode = normal mww 0xB8001008 0x82116480 # GPIO configuration #------------------------------------------------------------------------- mww 0x43FAC02C 0x00000015 mww 0x53FD0000 0x01000000 mww 0x53FD0004 0x00000080 }