Hi, Maybe check the GCC option "-mno-unaligned-access"
$>cat arch/arm/cpu/armv7/config.mk # # (C) Copyright 2002 # Gary Jennejohn, DENX Software Engineering, <ga...@denx.de> # # SPDX-License-Identifier: GPL-2.0+ # # On supported platforms we set the bit which causes us to trap on unaligned # memory access. This is the opposite of what the compiler expects to be # the default so we must pass in -mno-unaligned-access so that it is aware # of our decision. PF_NO_UNALIGNED := $(call cc-option, -mno-unaligned-access,) PLATFORM_CPPFLAGS += $(PF_NO_UNALIGNED) Regards, Clement On Thu, 8 Nov 2018 at 13:16, SHEKHAR SINGH <imsinghshek...@gmail.com> wrote: > > Hi All, > > We got the issue, actually our DDR only supports 32bit access, 16bit and 8bit > access are not supported. > Is there any compiler option or any u-boot option, we need to configure so > that u-boot use 32 bit access only. > > Thanks in advance. > Regards > Shekhar Singh > > On Thu, Nov 1, 2018 at 7:14 PM SHEKHAR SINGH <imsinghshek...@gmail.com> wrote: >> >> >> Hi All, >> >> I am new to U-boot. Currently, I am working on developing U-boot for a new >> SOC. The SOC has arm926ej-s as the core and is implemented on Xilinx FPGA >> with SD-card as the boot device. With current setup DDR is already >> initialized by FPGA and SD card can be accessed using direct addressing. We >> have added board files and SoC related files to the Uboot directory and is >> able to successfully compile and get some outputs on UART (debug console). >> Currently, we have added only support for GPIO and UART drivers. >> >> SD Card : 0x00000000 - 0x007FFFFF >> SRAM : 0x90000000 - 0x90007FFF >> DDR : 0x40000000 - 0x43FFFFFF >> >> We are facing some issue with the uboot booting. We are able to see the >> initial uboot prints and debug prints when the stack pointer is in SRAM, but >> after we relocate the code from SD card to DDR and change the stack pointer >> to DDR we are getting junk prints on the console. Can anyone help me or >> suggest me what we are doing wrong here? Thanks in advance for your help. >> >> Please see the below UART Log: >> >> initcall: 00005cdc >> initcall: 00009a84 >> initcall: 00005ccc >> initcall: 00005fbc >> initcall: 000060c0 >> initcall: 00000418 >> initcall: 00006090 >> initcall: 00005fb4 >> malloc_simple: size=18, ptr=18, limit=400: 90000b30 >> malloc_simple: size=54, ptr=6c, limit=400: 90000b48 >> malloc_simple: size=4, ptr=70, limit=400: 90000b9c >> uclass_find_device_by_seq: 0 -1 >> uclass_find_device_by_seq: 0 0 >> - -1 -1 'root_driver' >> - not found >> initcall: 00006088 >> initcall: 000010b0 >> initcall: 000004a8 >> initcall: 0000f77c >> env_init: Environment nowhere init done (ret=0) >> initcall: 00005f88 >> initcall: 0000f0dc >> initcall: 000147c0 >> >> >> U-Boot 2018.09 (Nov 01 2018 - 18:33:40 +0530) >> >> initcall: 00005eac >> U-Boot code: 00000000 -> 00024604 BSS: -> 00030608 >> initcall: 00000438 >> CPU: SoC Version 0.01 >> CPU clock: 75MHz >> SDRAM clock: 75MHz >> initcall: 00006470 >> initcall: 00005f70 >> DRAM: initcall: 000010ec >> SDRAM Reg 000 : ffffffff >> EDAC Reg 004 : ffffffff >> SDRAM Reg 100 : ffffffff >> EDAC Reg 104 : ffffffff >> EMC Reg : 1ff >> initcall: 00006178 >> Monitor len: 00030608 >> Ram size: 04000000 >> gd->relocaddr : 44000000 >> Ram top: 44000000 >> initcall: 00005cfc >> initcall: 00006098 >> initcall: 00005d14 >> initcall: 000060a0 >> initcall: 00005e44 >> Reserving 193k for U-Boot at: 43fcf000 >> initcall: 00005e18 >> Reserving 1152k for malloc() at: 43eaf000 >> initcall: 00005f1c >> Reserving 80 Bytes for Board Info at: 43eaefb0 >> initcall: 000060a8 >> initcall: 00005de4 >> Reserving 200 Bytes for Global Data at: 43eaeee8 >> initcall: 00005d5c >> initcall: 000060b0 >> initcall: 000060c8 >> initcall: 000061f4 >> gd->relocaddr : 43FCF000 >> initcall: 00005d1c >> initcall: 000060dc >> >> RAM Configuration: >> Bank #0: 40000000 64 MiB >> >> DRAM: 64 MiB >> initcall: 00005d40 >> New Stack Pointer is: 43eaeec0 >> initcall: 00005ed8 >> initcall: 000060b8 >> initcall: 00005fd0 >> __image_copy_start : 00000000 >> __image_copy_end : 00024604 >> gd copied successfully to new gd... >> Relocation Offset is: 43fcf000 >> Relocating to Addr 43fcf000, new gd at 43eaeee8, sp at 43eaeec0 >> Current Stack Pointer 90000a60 >> rrrr >> ccccooooeeee4444eeeettttllll44445555ttttllll44445555ttttllll00006666eeeeaaaa >> 44445555))))ENABLE CACHESWARNING: Caches not enabled >> ttttllll00006666eeeeaaaa 44445555))))ttttllll00006666eeeeaaaa >> 44445555))))ttttllll00006666eeeeaaaa 44445555))))----ooooaaaaccccuuuu >> 7777tttt((((BBBBnnnneeeeyyyy4444ffff----4444ffffffffmmmmoooo >> 44449999----44449999 >> >> >> >> ttttllll00005555eeeeaaaa 44444444))))ttttllll00006666eeeeaaaa >> 44445555))))ttttllll00006666eeeeaaaa 44445555))))ttttllll00006666eeeeaaaa >> 44445555))))ttttllll00006666eeeeaaaa >> 44445555))))aaaaffff____iiiibbbbeeee0000 >> >> >> >> aaaaffff____iiiibbbbeeee0000---- >> ''''ttttiiii''''----ttttuuuuttttllll00001111eeeeaaaa >> 44440000))))IIII::::aaaaiiii >> >> >> >> ttttllll0000aaaaeeeeaaaa 44449999))))ttttllll00006666eeeeaaaa >> 44445555))))ttttllll00006666eeeeaaaa 44445555)))) nnnn RRRR----BBBB >> 4444ffffttttllll00006666eeeeaaaa >> 44445555))))ttttllll00006666eeeeaaaa 44445555))))MMC: >> ttttllll00006666eeeeaaaa 44445555))))nnnneeeellllnnnnoooonnnniiiimmmm >> oooommmmccccNNNNooooccccaaaa >> ::::ooooddddhhhhoooooooooooonnnniiiiEEEE::::ooooddddhhhhoooooooooooonnnntttt >> hhhhbbbb 44442222bbbb====00000000aaaaHHHH llllNNNN >> >> >> >> eeeebbbb,,,,llll::::eeee BBBB mmmmeeeebbbb,,,,dddd::::eeee BBBB >> mmmmEEEE llll44442222 llll1111 4444ffff eeeeoooo uuuueeee >> BBBB mmmm""""EEEE eeeetttt 4444ffffEEEE >> eeeettttllll00006666eeeeaaaa 44445555))))ttttllll0000aaaaeeeeaaaa >> 44449999))))ttttllll00006666eeeeaaaa 44445555))))ttttllll00008888eeeeaaaa >> 44447777))))In: iiii4444ffff >> >> >> >> Out: iiii4444ffff >> >> >> >> Err: iiii4444ffff >> >> >> >> tttt uuuuoooorrrr3333aaaaaaaa cccctttt >> uuuuoooorrrr3333aaaaaaaa cccctttt uuuuoooorrrr3333aaaaaaaa >> ccccttttllll0000ddddeeeeaaaa 4444ffff))))ttttllll00006666eeeeaaaa >> 44445555))))ttttllll00006666eeeeaaaa 44445555))))ttttllll00006666eeeeaaaa >> 44445555))))Net: ttttiiiiiiiiSSSSppppNo ethernet found. >> ttttllll00006666eeeeaaaa 44445555))))tttt uuuuoooorrrr3333aaaaaaaa >> cccc nnnnoooonnnneeeebbbbddddyyyy >> >> >> >> nnnnoooobbbbcccc""""DDDDNNNN""""Uboot > >> Uboot > >> Uboot > >> Uboot > >> Uboot > >> Uboot > >> Uboot > >> Uboot > >> >> >> >> Regards, >> Shekhar S >> >> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
