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Date: Mon, 14 May 2018 15:48:13 +0200
From: Jerome Brunet <jbrunet@...libre.com>
To: Anand Moon <linux.amoon@...il.com>
Cc: Neil Armstrong <narmstrong@...libre.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
Carlo Caione <carlo@...one.org>,
Kevin Hilman <khilman@...libre.com>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ARM64: dts: meson-gxbb: odroidc2: enable sdcard UHS
modes
On Wed, 2018-05-02 at 00:29 +0530, Anand Moon wrote:
> Enable UHS modes for sdcard, on odroidc2.
>
> Signed-off-by: Anand Moon <linux.amoon@...il.com>
> ---
> arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
> index 54954b314a45..c90f8b46c60c 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
> @@ -258,6 +258,11 @@
> cap-sd-highspeed;
> max-frequency = <100000000>;
> disable-wp;
> + sd-uhs-sdr12;
> + sd-uhs-sdr25;
> + sd-uhs-sdr50;
> + sd-uhs-sdr104;
> + sd-uhs-ddr50;
>
> cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
> cd-inverted;
Hi Anand,
I tried a few sdcards on the OC2 with your 2 patches.
Like with the libretech-cc, sdr104@...Mhz works "mostly", but, with some
sdcards, it does not - please see below. The same sdcards appear to be working
fine on my laptop.
This is something I have not been able to crack yet on the libretech-cc.
I'd suggest dropping sdr104 and keeping the max frequency at 100Mhz until we can
figure out the problem here.
With this changed:
Tested-by: Jerome Brunet <jbrunet@...libre.com>
dd if=/dev/mmcblk1 of=/dev/zero bs=4M
[ 446.925817] mmc1: tuning execution failed: -5
[ 446.956597] mmc1: tuning execution failed: -5
[ 489.957810] print_req_error: I/O error, dev mmcblk1, sector 6654424
[ 490.141975] print_req_error: I/O error, dev mmcblk1, sector 6656440
[ 490.148304] print_req_error: I/O error, dev mmcblk1, sector 6656944
[ 490.349650] print_req_error: I/O error, dev mmcblk1, sector 6658456
[ 491.804382] print_req_error: I/O error, dev mmcblk1, sector 6747688
[ 492.281246] print_req_error: I/O error, dev mmcblk1, sector 6784992
[ 492.419034] print_req_error: I/O error, dev mmcblk1, sector 6785496
[ 492.865878] print_req_error: I/O error, dev mmcblk1, sector 6791800
[ 493.023809] print_req_error: I/O error, dev mmcblk1, sector 6792192
[ 493.024435] Buffer I/O error on dev mmcblk1, logical block 849024, async page
read
[ 493.217751] print_req_error: I/O error, dev mmcblk1, sector 6792808
[ 494.891779] mmc1: tuning execution failed: -5
[ 495.374186] print_req_error: 3 callbacks suppressed
[ 495.374193] print_req_error: I/O error, dev mmcblk1, sector 6854576
[ 495.767498] print_req_error: I/O error, dev mmcblk1, sector 6860000
[ 496.013104] print_req_error: I/O error, dev mmcblk1, sector 6863024
[ 496.223042] print_req_error: I/O error, dev mmcblk1, sector 6864032
[ 496.227003] print_req_error: I/O error, dev mmcblk1, sector 6864536
[ 496.375175] print_req_error: I/O error, dev mmcblk1, sector 6864176
[ 496.375806] Buffer I/O error on dev mmcblk1, logical block 858022, async page
read
[ 496.521229] print_req_error: I/O error, dev mmcblk1, sector 6864184
[ 496.521852] Buffer I/O error on dev mmcblk1, logical block 858023, async page
read
[ 503.596978] print_req_error: I/O error, dev mmcblk1, sector 6983312
[ 503.597606] Buffer I/O error on dev mmcblk1, logical block 872914, async page
read
[ 505.280621] print_req_error: I/O error, dev mmcblk1, sector 7004536
[ 505.281249] Buffer I/O error on dev mmcblk1, logical block 875567, async page
read
[ 507.372560] print_req_error: I/O error, dev mmcblk1, sector 7048696
[ 507.373192] Buffer I/O error on dev mmcblk1, logical block 881087, async page
read
[ 511.355248] print_req_error: I/O error, dev mmcblk1, sector 7131352
[ 511.355883] Buffer I/O error on dev mmcblk1, logical block 891419, async page
read
[ 511.369076] print_req_error: I/O error, dev mmcblk1, sector 7131352
[ 511.369694] Buffer I/O error on dev mmcblk1, logical block 891419, async page
read
dd: error reading '/dev/mmcblk1': Input/output error
868+7 records in
868+7 records out
3651252224 bytes (3.7 GB, 3.4 GiB) copied, 66.7736 s, 54.7 MB/s
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