> 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@xxxxxxxxxxxx> Acked-by: Avri Altman <avri.altman@xxxxxxx>
