Does U-boot socfpga_v2019.04 really support LPDDR2?

Question

I cannot build cyclone V SPL using LPDDR2 with EDS 19.1.

Longer version:

I have a custom cyclone V board with LPDDR2 HPS memory and so far

I've been using SPL based on U-boot branch socfpga_v2013.01.01.

According to:

https://rocketboards.org/foswiki/Documentation/BuildingBootloader#Cyclone_V_SoC_45_Boot_from_SD_Card

it seems that I have to upgrade U-boot to socfpga_v2019.04 when using EDS 19.1

but SPL does not compile when using LPDDR2 HPS memory due to missing defines.

The missing ones all seem to be related to DDR3 (e.g. RW_MGR_MRS1).

I tried building new projects containing nothing but a HPS block:

When using default SDRAM (DDR3), SPL builds fine. The defines my build was

missing all exist in hps_isw_handoff/*/sequencer_auto.h

When using Micron LPDDR2 SDRAM, SPL does not build due to missing defines.

hps_isw_handoff/*/sequencer_auto.h does not contain the missing defines.

See build log below.

Looking at code in u-boot-socfpga/drivers/ddr/altera I find no evidence

of LPDDR2 support, e.g. LPDDRDIS is hardcoded to '1' in sequencer.c

So it seems that socfpga_v2019.04 does not support LPDDR2?

/Thomas

k7:~/altera/pl/c5_test_lpddr2/software/bootloader/u-boot-socfpga$ make -j8

CHK include/config/uboot.release

CHK include/generated/timestamp_autogenerated.h

UPD include/generated/timestamp_autogenerated.h

CHK include/generated/version_autogenerated.h

CHK include/generated/generic-asm-offsets.h

CHK include/generated/asm-offsets.h

HOSTCC tools/mkenvimage.o

HOSTCC tools/fit_image.o

HOSTCC tools/image-host.o

HOSTCC tools/dumpimage.o

HOSTCC tools/mkimage.o

HOSTLD tools/mkenvimage

HOSTLD tools/dumpimage

HOSTLD tools/mkimage

CC arch/arm/mach-socfpga/wrap_pll_config.o

CC common/main.o

CC cmd/version.o

LD arch/arm/mach-socfpga/built-in.o

LD common/built-in.o

LD cmd/built-in.o

CC lib/smbios.o

CC lib/display_options.o

CC lib/efi_loader/helloworld.o

CC lib/efi_loader/efi_reloc.o

CC lib/efi_loader/efi_freestanding.o

LD lib/efi_loader/helloworld_efi.so

OBJCOPY lib/efi_loader/helloworld.efi

LD lib/built-in.o

LD u-boot

OBJCOPY u-boot.srec

OBJCOPY u-boot-nodtb.bin

SYM u-boot.sym

CAT u-boot-dtb.bin

COPY u-boot.bin

MKIMAGE u-boot.img

MKIMAGE u-boot-dtb.img

CC spl/common/spl/spl.o

CC spl/arch/arm/mach-socfpga/wrap_pll_config.o

CC spl/arch/arm/mach-socfpga/wrap_iocsr_config.o

CC spl/arch/arm/mach-socfpga/wrap_pinmux_config.o

CC spl/arch/arm/mach-socfpga/wrap_sdram_config.o

CC spl/lib/display_options.o

arch/arm/mach-socfpga/wrap_sdram_config.c:205:25: error: ‘RW_MGR_INIT_RESET_0_CKE_0’ undeclared here (not in a function); did you mean ‘RW_MGR_ACTIVATE_0_AND_1’?

.init_reset_0_cke_0 = RW_MGR_INIT_RESET_0_CKE_0,

^~~~~~~~~~~~~~~~~~~~~~~~~

RW_MGR_ACTIVATE_0_AND_1

arch/arm/mach-socfpga/wrap_sdram_config.c:206:25: error: ‘RW_MGR_INIT_RESET_1_CKE_0’ undeclared here (not in a function); did you mean ‘RW_MGR_INIT_RESET_0_CKE_0’?

.init_reset_1_cke_0 = RW_MGR_INIT_RESET_1_CKE_0,

^~~~~~~~~~~~~~~~~~~~~~~~~

RW_MGR_INIT_RESET_0_CKE_0

arch/arm/mach-socfpga/wrap_sdram_config.c:219:22: error: ‘RW_MGR_MRS0_DLL_RESET’ undeclared here (not in a function); did you mean ‘RW_MGR_SGLE_READ’?

.mrs0_dll_reset = RW_MGR_MRS0_DLL_RESET,

^~~~~~~~~~~~~~~~~~~~~

RW_MGR_SGLE_READ

arch/arm/mach-socfpga/wrap_sdram_config.c:220:26: error: ‘RW_MGR_MRS0_DLL_RESET_MIRR’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS0_DLL_RESET’?

.mrs0_dll_reset_mirr = RW_MGR_MRS0_DLL_RESET_MIRR,

^~~~~~~~~~~~~~~~~~~~~~~~~~

RW_MGR_MRS0_DLL_RESET

arch/arm/mach-socfpga/wrap_sdram_config.c:221:17: error: ‘RW_MGR_MRS0_USER’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS0_DLL_RESET’?

.mrs0_user = RW_MGR_MRS0_USER,

^~~~~~~~~~~~~~~~

RW_MGR_MRS0_DLL_RESET

arch/arm/mach-socfpga/wrap_sdram_config.c:222:22: error: ‘RW_MGR_MRS0_USER_MIRR’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS0_USER’?

.mrs0_user_mirr = RW_MGR_MRS0_USER_MIRR,

^~~~~~~~~~~~~~~~~~~~~

RW_MGR_MRS0_USER

arch/arm/mach-socfpga/wrap_sdram_config.c:223:13: error: ‘RW_MGR_MRS1’ undeclared here (not in a function); did you mean ‘RW_MGR_IDLE’?

.mrs1 = RW_MGR_MRS1,

^~~~~~~~~~~

RW_MGR_IDLE

arch/arm/mach-socfpga/wrap_sdram_config.c:224:17: error: ‘RW_MGR_MRS1_MIRR’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS0_USER’?

.mrs1_mirr = RW_MGR_MRS1_MIRR,

^~~~~~~~~~~~~~~~

RW_MGR_MRS0_USER

arch/arm/mach-socfpga/wrap_sdram_config.c:225:13: error: ‘RW_MGR_MRS2’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS1’?

.mrs2 = RW_MGR_MRS2,

^~~~~~~~~~~

RW_MGR_MRS1

arch/arm/mach-socfpga/wrap_sdram_config.c:226:17: error: ‘RW_MGR_MRS2_MIRR’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS1_MIRR’?

.mrs2_mirr = RW_MGR_MRS2_MIRR,

^~~~~~~~~~~~~~~~

RW_MGR_MRS1_MIRR

arch/arm/mach-socfpga/wrap_sdram_config.c:227:13: error: ‘RW_MGR_MRS3’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS2’?

.mrs3 = RW_MGR_MRS3,

^~~~~~~~~~~

RW_MGR_MRS2

arch/arm/mach-socfpga/wrap_sdram_config.c:228:17: error: ‘RW_MGR_MRS3_MIRR’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS2_MIRR’?

.mrs3_mirr = RW_MGR_MRS3_MIRR,

^~~~~~~~~~~~~~~~

RW_MGR_MRS2_MIRR

arch/arm/mach-socfpga/wrap_sdram_config.c:234:15: error: ‘RW_MGR_RETURN’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS3’?

.rreturn = RW_MGR_RETURN,

^~~~~~~~~~~~~

RW_MGR_MRS3

arch/arm/mach-socfpga/wrap_sdram_config.c:236:13: error: ‘RW_MGR_ZQCL’ undeclared here (not in a function); did you mean ‘RW_MGR_MRS3’?

.zqcl = RW_MGR_ZQCL,

^~~~~~~~~~~

RW_MGR_MRS3

scripts/Makefile.build:278: recipe for target 'spl/arch/arm/mach-socfpga/wrap_sdram_config.o' failed

make[2]: *** [spl/arch/arm/mach-socfpga/wrap_sdram_config.o] Error 1

scripts/Makefile.spl:398: recipe for target 'spl/arch/arm/mach-socfpga' failed

make[1]: *** [spl/arch/arm/mach-socfpga] Error 2

make[1]: *** Waiting for unfinished jobs....

LD spl/common/spl/built-in.o

LD spl/lib/built-in.o

Makefile:1664: recipe for target 'spl/u-boot-spl' failed

make: *** [spl/u-boot-spl] Error 2

fawazj_altera · Answer

Hello,Kindly make sure to follow the steps here:https://github.com/altera-opensource/u-boot-socfpga/blob/socfpga_v2019.04/doc/README.socfpgaThis will generate the handoff files. Hardware wise it should be supported. Uboot wise, I will check with our internal engineering to confirm if 2019.04 supports LPDDR2Thank you

fawazj_altera · Answer

One more thing,  can you try to create uboot using 18.1? this will use older uboot version.

tlang15 · Answer

Hi,I've been using the work flow described in README.socfpga and also on https://rocketboards.org/foswiki/Documentation/BuildingBootloader

tlang15 · Answer

If I build the project using Quartus 19.1 but use EDS 18.1 (and U-boot socfpga_v2013.01.01 ) when creating BSPand building SPL/U-boot, SPL builds (and boots) just fine.

gbies · Answer

So have You figured out whether the lpddr2 is suported?
I'm trying to build spl for project generated in q20.1 with CycV and LPDDR2 but have very simmilar compile time errors.
Should I use q18.1 for this?

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Does U-boot socfpga_v2019.04 really support LPDDR2?

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