Linux: DRA756 4 x MT41K256M16TW sdram support

Kevin.zd

Intellectual 630 points

Other Parts Discussed in Thread: DRA756, BEAGLEBOARD-X15, TEST2, DRA752, DRA742

Tool/software: Linux

Hello：

I made my board DRA756 with 2GB sdram.

emif1: 2 x 41K256M16TW = 1GB

emif2: 2 x 41K256M16TW = 1GB

test 1: ERROR for ./memsize 2048

const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2_2G_x_2_x_2 = {
.dmm_lisa_map_0 = 0x00000000,
.dmm_lisa_map_1 = 0xC0600220,
.dmm_lisa_map_2 = 0x80640300,
.dmm_lisa_map_3 = 0xFF020100,
.is_ma_present = 0x1

};

test 2: ERROR for ./memsize 2048

const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2_2G_x_2_x_2 = {
.dmm_lisa_map_0 = 0x00000000,
.dmm_lisa_map_1 = 0,
.dmm_lisa_map_2 = 0,
.dmm_lisa_map_3 = 0x80740300,
.is_ma_present = 0x1

};

test 3: OK[ERROR] for ./memsize 2048 [A few times OK, not All times ok]

const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2_2G_x_2_x_2 = {
.dmm_lisa_map_0 = 0x00000000,
.dmm_lisa_map_1 = 0xC0600200,
.dmm_lisa_map_2 = 0x80600100,
.dmm_lisa_map_3 = 0xFF020100,
.is_ma_present = 0x1

};

But I need emif1 emif2 interleaved, how can I config this.

thanks.

over 8 years ago

0 Pavel Botev over 8 years ago

TI__Guru**** 170625 points

Hi Kevin,

AM572x based BeagleBoard-X15 has the same DDR3 configuration as your custom board. It has 1Gbyte on EMIF1 and 1GByte on EMIF2, total 2GByte. And it is using the below configuration:

u-boot/board/ti/am57xx/board.c

static const struct dmm_lisa_map_regs beagle_x15_lisa_regs = {
.dmm_lisa_map_3 = 0x80740300,
.is_ma_present = 0x1
};

*dmm_lisa_regs = &beagle_x15_lisa_regs;

See also the below e2e thread:

e2e.ti.com/.../554808

Regards,
Pavel

0 Kevin.zd over 8 years ago in reply to Pavel Botev

Intellectual 630 points

test 2: ERROR for ./memsize 2048

I use the config test2, is the same as you regs.

when i use memsize test the memory.

./memsize 2048

1583MB OK
1585MB OK
1586MB OK
[ 223.446044] memsize invoked oom-killer: gfp_mask=0x2084d0, order=0, oom_score_adj=0
[ 223.453985] CPU: 1 PID: 1021 Comm: memsize Not tainted 3.14.57+ #1
[ 223.460202] Backtrace:

0 Pavel Botev over 8 years ago in reply to Kevin.zd

TI__Guru**** 170625 points

Kevin,

Can you provide more info regarding this memsize test. Is it user space tool? Do you have it by default in the PSDKLA or it is your own tool?

Regards,
Pavel

0 Kevin.zd over 8 years ago in reply to Pavel Botev

Intellectual 630 points

the tool "memsize" is in the GLSDK: /home/yue/ti-glsdk_dra7xx-evm_7_03_00_03/filesystem/evm/usr/bin/memsize

which is the default tools in rootfs (arago-glsdk-multimedia-image-dra7xx-evm.tar.gz).

and I test on EVM(dra752) board(1.5G) and EVM(dra722) board(1G) , all ok.

0 Pavel Botev over 8 years ago in reply to Kevin.zd

TI__Guru**** 170625 points

Kevin,

From what I see the memsize test works fine till 1.5GB then fail. You can refer to the DDR3 design of the latest DRA75x TI EVM (4GByte) and/or AM572x TI EVM (2GByte). You can also run the memsize test on these two EVMs if you have them.

Can you also provide the u-boot log of your custom board? You can also test the DDR3 at u-boot level, see the below e2e posts for more info:

e2e.ti.com/.../2029494

e2e.ti.com/.../2030847

e2e.ti.com/.../2031967

e2e.ti.com/.../2032030

Regards,
Pavel

0 Kevin.zd over 8 years ago in reply to Pavel Botev

Intellectual 630 points

Hi Pavel:

I havn't the boart DRA75x TI EVM (4GByte) and/or AM572x TI EVM (2GByte).

I tested the config

.dmm_lisa_map_3 = 0x80740300,
.is_ma_present = 0x1

uboot msg:

U-Boot 2014.07-svn1480 (Jan 07 2017 - 17:38:45)

CPU : DRA752-GP ES1.1
Board: DRA7xx
I2C: ready
DRAM: 2 GiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment

SCSI: Hit any key to stop autoboot: 0
U-Boot# bdinfo
arch_number = 0x00000000
boot_params = 0x80000100
DRAM bank   = 0x00000000
-> start    = 0x80000000
-> size     = 0x80000000
baudrate    = 115200 bps
TLB addr    = 0xFFFF0000
relocaddr   = 0xFFF85000
reloc off   = 0x7F785000
irq_sp      = 0xFEF64DC0
sp start    = 0xFEF64DB0
U-Boot# md 0x4E000040 1
4e000040: 00000000                               ....
U-Boot# md 0x4E000044 1
4e000044: 00000000                               ....
U-Boot# md 0x4E000048 1
4e000048: 00000000                               ....
U-Boot# md 0x4E00004C 1
4e00004c: 80740300                               ..t.

bootup test, and I make a script

- - - - - -

test2g.sh

cat test2g.sh

memsize 2048
memsize 2048
memsize 2048
memsize 2048
memsize 2048
memsize 2048

- - - - - - - - -

test MSG

root@dra7xx-evm:~# ./test2g.sh
1920MB OK
1920 ------------------------------------------------------------------>ok,sometimes OK,

520MB OK
572MB OK
1019MB OK
1361MB OK - ------------------------------------------------------------------------second, error
[   63.915887] memsize invoked oom-killer: gfp_mask=0x2084d0, order=0, oom_score_adj=0
[   63.923951] CPU: 0 PID: 1010 Comm: memsize Not tainted 3.14.57+ #1
[   63.930165] Backtrace:

0 Pavel Botev over 8 years ago in reply to Kevin.zd

TI__Guru**** 170625 points

Kevin,

Kevin.zd said:
U-Boot# bdinfo
arch_number = 0x00000000
boot_params = 0x80000100
DRAM bank   = 0x00000000
-> start    = 0x80000000
-> size     = 0x80000000

Seems like your u-boot do not detect the second DRAM, like we have in AM572x:

=> bdinfo
arch_number = 0x00000000
boot_params = 0x80000100
DRAM bank   = 0x00000000
-> start    = 0x80000000
-> size     = 0x80000000
DRAM bank   = 0x00000001
-> start    = 0x00000000
-> size     = 0x00000000

Can you try with the latest u-boot 2016.05 available at PSDKLA 3.01.00.03:

Do you have the same there?

Can you also try with the u-boot memsize test? What is the result?

u-boot/doc/README.memory-test
u-boot/common/memsize.c

Regards,
Pavel

0 Kevin.zd over 8 years ago in reply to Pavel Botev

Intellectual 630 points

psdk 3.01.00.03 uboot test:
U-Boot 2016.05-dirty (Jan 11 2017 - 14:18:43 +0800)

CPU : DRA752-GP ES1.1
Model: TI DRA742
Board: DRA74x EVM REV <NULL>
DRAM: 2 GiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - bad CRC, using default environment

Hit any key to stop autoboot: 0
=> bdinfo
arch_number = 0x00000FE6
boot_params = 0x80000100
DRAM bank = 0x00000000
-> start = 0x80000000
-> size = 0x7F000000
DRAM bank = 0x00000001
-> start = 0x00000000
-> size = 0x00000000
baudrate = 115200 bps
TLB addr = 0xFEFF0000
relocaddr = 0xFEF44000
reloc off = 0x7E744000
irq_sp = 0xFDF0F300
sp start = 0xFDF0F2F0
=>
=> md 4e000040 4
4e000040: 00000000 00000000 80740300 ff020100 ..........t.....

root@dra7xx-evm:~# free
total used free shared buffers
Mem: 2054452 24904 2029548 0 932
-/+ buffers: 23972 2030480
Swap: 0 0 0

root@dra7xx-evm:~# memsize 2048
[ 30.407363] random: nonblocking pool is initialized
379MB OK
519MB OK
769MB OK
840MB OK
956MB OK
1118MB OK
1135MB OK
1158MB OK
1187MB OK
1194MB OK
[ 43.651376] memsize invoked oom-killer: gfp_mask=0x2084d0, order=0, oom_score_adj=0

0 Pavel Botev over 8 years ago in reply to Kevin.zd

TI__Guru**** 170625 points

Kevin.zd said:
CPU : DRA752-GP ES1.1

Do you use DRA75x ES1.1 device?

Kevin.zd said:
=> md 4e000040 4
4e000040: 00000000 00000000 80740300 ff020100 ..........t.....

These values are for 4GByte RAM. For 2GByte RAM update as below:

dmm_lisa_map_0 (4e000040) = 0x0

dmm_lisa_map_1 (4e000044) = 0x0

dmm_lisa_map_2 (4e000048) = 0x0

dmm_lisa_map_3 (4e00004C) = 0x80740300

Kevin.zd said:
root@dra7xx-evm:~# free
total used free shared buffers
Mem: 2054452 24904 2029548 0 932
-/+ buffers: 23972 2030480
Swap: 0 0 0

root@dra7xx-evm:~# memsize 2048
[ 30.407363] random: nonblocking pool is initialized
379MB OK
519MB OK
769MB OK
840MB OK
956MB OK
1118MB OK
1135MB OK
1158MB OK
1187MB OK
1194MB OK
[ 43.651376] memsize invoked oom-killer: gfp_mask=0x2084d0, order=0, oom_score_adj=0

This is not u-boot memory test. Please run u-boot memory test.

u-boot/doc/README.memory-test
u-boot/common/memsize.c

Regards,
Pavel

0 Kevin.zd over 8 years ago in reply to Pavel Botev

Intellectual 630 points

int dram_init(void)
{
u32 size_prog,size_detect;
size_prog = omap_sdram_size();
printf("------------get_ram_size enter!\n");
size_detect = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, size_prog);
printf("------------size_prog is 0x%x size_detect 0x%x\n",size_prog,size_detect);
sdram_init();
gd->ram_size = omap_sdram_size();
size_prog = omap_sdram_size();
printf("------------get_ram_size enter!\n");
size_detect = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, size_prog);
printf("------------size_prog is 0x%x size_detect 0x%x\n",size_prog,size_detect);

return 0;
}

boot log:

U-Boot 2016.05-dirty (Jan 12 2017 - 13:36:38 +0800)

CPU : DRA752-GP ES1.1
Model: TI DRA742
Board: DRA74x EVM REV <NULL>
DRAM: ------------get_ram_size enter!
------------size_prog is 0x7f000000 size_detect 0x8
------------get_ram_size enter!
------------size_prog is 0x7f000000 size_detect 0x8
2 GiB

.......

=> md 4e000040 4
4e000040: 00000000 00000000 80740300 ff020100 ..........t.....

0 Pavel Botev over 8 years ago in reply to Kevin.zd

TI__Guru**** 170625 points

Kevin,

I can suggest you the below things:

- check your HW design. Use as reference DRA75x DM and AM572x TI EVM and/or AM572x IDK. These EVM and IDK are using the same DDR3 memory configuration (2GByte, 1GByte on EMIF1, 1GByte on EMIF2) and are using the same DDR3 chips MT41K256M16TW.

- check the DDR3 software settings for AM572x EVM and/or IDK, compare with yours

- dmm_lisa_map registers should have the value as in my previous post

- test the DDR3 from u-boot, not from user space

- check the EMIF tool, it might be in help:

e2e.ti.com/.../528821

Regards,
Pavel

0 Kevin.zd over 8 years ago in reply to Pavel Botev

Intellectual 630 points

I change all init items to the same as am57xx DDR3_2GB.

uboot log:

U-Boot 2014.07-svn1480 (Jan 17 2017 - 16:58:38)

CPU : DRA752-GP ES1.1
Board: DRA7xx
I2C: ready
DRAM: ------------get_ram_size enter!
------------size_prog is 0x80000000 size_detect 0x80000000
------------get_ram_size enter!
------------size_prog is 0x80000000 size_detect 0x80000000
2 GiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment

SCSI: Hit any key to stop autoboot: 0
U-Boot#
U-Boot# bdinfo
arch_number = 0x00000000
boot_params = 0x80000100
DRAM bank = 0x00000000
-> start = 0x80000000
-> size = 0x80000000
baudrate = 115200 bps
TLB addr = 0xFFFF0000
relocaddr = 0xFFF85000
reloc off = 0x7F785000
irq_sp = 0xFEF64DC0
sp start = 0xFEF64DB0
U-Boot# md 4e000040 4
4e000040: 00000000 00000000 00000000 80740300 ..............t.

user space:

script: 2048.sh

cat 2048.sh

memsize 2048

......

./2048.sh

root@dra7xx-evm:~# ./2048.sh
[ 14.201462] omap_hwmod: mmu1_dsp1: _wait_target_disable failed
[ 14.214507] omap_hwmod: mmu0_dsp1: _wait_target_disable failed
1792MB OK
1792 {pass}
857MB OK
[ 59.913515] memsize invoked oom-killer: gfp_mask=0x2084d0, order=0, oom_score_adj=0
[ 59.921450] CPU: 0 PID: 1149 Comm: memsize Tainted: G O 3.14.57+ #10
[ 59.928716] Backtrace:

only one times passed, and some times, there is no one passed .

0 Pavel Botev over 8 years ago in reply to Kevin.zd

TI__Guru**** 170625 points

test the DDR3 from u-boot, not from user space

Processors

Processors forum

Linux: DRA756 4 x MT41K256M16TW sdram support