sdhci driver fail : mmc2: Command INDEX error,intmask: c0000

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

A MicoSD card ia connected to TX1 in our customerized carry board. It fail at kernel startup:

mmc2: tuning_window[0]:0x0
mmc2: tuning_window[1]:0x0
mmc2: tuning_window[2]:0x0
mmc2: tuning_window[3]:0x0
mmc2: tuning_window[4]:0x0
mmc2: tuning_window[5]:0x0
mmc2: tuning_window[6]:0x0
mmc2: tuning_window[7]:0x0
sdhci: Tap value:4 |Trim value:2
sdhci: SDMMC Interrupt status : 0x00040000
sdhci: ===========================================================================================
mmc2: Command INDEX error,intmask: c0000 Interface clock = 102000000Hz
sdhci: =========================== REGISTER DUMP (mmc2)===========================================
sdhci: Sys addr[0x000]: 0x00000000 | Version[0x0fe] : 0x00000303
sdhci: Blk size[0x004]: 0x00000000 | Blk cnt[0x006]: 0x00000000
sdhci: Argument[0x008]: 0x00000000 | Trn mode[0x00c]: 0x00000000
sdhci: Present[0x024]: 0x000b0001 | Host ctl[0x028]: 0x00000001
sdhci: Power[0x029]: 0x0000000f | Blk gap[0x02a]:0x00000000
sdhci: Wake-up[0x02b]:0x00000000 | Clock[0x02c]: 0x0000ff07
sdhci: Timeout[0x02e]: 0x00000000 } Int stat[0x030]: 0x00000000
sdhci: Int enab[0x034]: 0x00ff0003 | Sig enab[0x038]:0x00fcc0003
sdhci: Cmd[0x00e]: 0x0000371a | Max curr[0x048]:0x00000000
sdhci: ADMA Err[0x054]: 0x00000000 | ADMA Ptr[0x058]: 0x00000000

sch 040 TX1_A_PCIe.pdf (91.7 KB)

2

Please share the schematics for us to review.

3

Hi Wayne,
Could I attach any pdf file or JPG picture?

4

Marco,

You could paste it in google drive or any online storage.

5

Sorry Marco. Per checked with our internal team, we cannot help forum users to review schematics.

Could you make sure your design matches the OEM design guide?

6

Now it work! Thank you Wayne.

marcoliu@vo2.com.cn