lkml.org 
[lkml]   [2020]   [Dec]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] mmc: core: MMC_CAP2_HS200_1_8V_SDR with mmc-hs400-1_8v
From
Date
Hi,

I have to callback my patch,
The mmc.c logic needs the MMC_CAP2_HS200_1_8V_SDR in the current implementation.

If I want to precise use mmc-hs400-1_8v or mmc-hs200-1_8v have their
explicit code-path its needs a bigger effort.

On it.

@Avri Altman , I have to reject your ACK. :)

Chris


On 29/11/2020 8:28 pm, Avri Altman wrote:
>
>> This patch remove the MMC_CAP2_HS200_1_8V_SDR capacity from
>> host->cap2 when the dt property mmc-hs400-1v8 set. It cause
>> error and occasionally hang on boot and reboot.
>> Board with this issue: rk3399 with SanDisk DG4008 eMMC.
>>
>> This patch did not change the mmc-hs400-1_2v host->cap2
>> added the MMC_CAP2_HS200_1_2V_SDR.
>>
>> Log shows a boot process with a HS400 5.1 capable SanDisk 8G
>> with mmc-hs400-1_8v dt property and the MMC_CAP2_HS200_1_8V_SDR
>> append to the host->cap2.
>>
>> [ 1.775721] mmc1: CQHCI version 5.10
>> [ 1.802342] mmc1: SDHCI controller on fe330000.sdhci [fe330000.sdhci]
>> using ADMA
>> [ 2.007581] mmc1: mmc_select_hs200 failed, error -110
>> [ 2.007589] mmc1: error -110 whilst initialising MMC card
>> [ 2.413559] mmc1: mmc_select_hs200 failed, error -110
>> [ 2.413562] mmc1: error -110 whilst initialising MMC card
>> [ 3.183343] mmc1: Command Queue Engine enabled
>> [ 3.183355] mmc1: new HS400 MMC card at address 0001
>> [ 3.197163] mmcblk1: mmc1:0001 DG4008 7.28 GiB
>> [ 3.197256] mmcblk1boot0: mmc1:0001 DG4008 partition 1 4.00 MiB
>> [ 3.197360] mmcblk1boot1: mmc1:0001 DG4008 partition 2 4.00 MiB
>> [ 3.197479] mmcblk1rpmb: mmc1:0001 DG4008 partition 3 4.00 MiB, chardev
>> (242:0)
>>
>> after patch applied
>> [ 1.746691] mmc1: CQHCI version 5.10
>> [ 1.773316] mmc1: SDHCI controller on fe330000.sdhci [fe330000.sdhci]
>> using ADMA
>> [ 1.858410] mmc1: Command Queue Engine enabled
>> [ 1.858418] mmc1: new HS400 MMC card at address 0001
>> [ 1.858897] mmcblk1: mmc1:0001 DG4008 7.28 GiB
>> [ 1.859002] mmcblk1boot0: mmc1:0001 DG4008 partition 1 4.00 MiB
>> [ 1.859097] mmcblk1boot1: mmc1:0001 DG4008 partition 2 4.00 MiB
>> [ 1.859182] mmcblk1rpmb: mmc1:0001 DG4008 partition 3 4.00 MiB, chardev
>> (242:0)
>>
>> Fixes: c373eb489b27b mmc: core: add DT bindings for eMMC HS400 1.8/1.2V
>>
>> Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
> Acked-by: Avri Altman <avri.altman@wdc.com>
>

--
GTSYS Limited RFID Technology
9/F, Unit E, R07, Kwai Shing Industrial Building Phase 2,
42-46 Tai Lin Pai Road, Kwai Chung, N.T., Hong Kong
Tel (852) 9079 9521

Disclaimer: https://www.gtsys.com.hk/email/classified.html

\
 
 \ /
  Last update: 2020-12-01 10:40    [W:0.059 / U:0.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site