Added SD Card page

docs/files/sdcard/helios4_dtb_sd_uhs_linux_stable.patch

@@ -0,0 +1,34 @@
+From 76fa8b1b9cd666312ade19e01de7c4a4103efe9b Mon Sep 17 00:00:00 2001
+Message-Id: <76fa8b1b9cd666312ade19e01de7c4a4103efe9b.1544609988.git.aditya@kobol.io>
+From: Aditya Prayoga <aditya@kobol.io>
+Date: Wed, 12 Dec 2018 15:02:16 +0800
+Subject: [PATCH] arm: dts: armada-388-helios4: Enable High Speed and UHS-I
+ support
+
+Enable High Speed and UHS-I mode support on SD card controller as
+specified by Functional Specification document.
+
+Signed-off-by: Aditya Prayoga <aditya@kobol.io>
+---
+ arch/arm/boot/dts/armada-388-helios4.dts | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/arch/arm/boot/dts/armada-388-helios4.dts b/arch/arm/boot/dts/armada-388-helios4.dts
+index 705adfa..23785ec 100644
+--- a/arch/arm/boot/dts/armada-388-helios4.dts
++++ b/arch/arm/boot/dts/armada-388-helios4.dts
+@@ -253,6 +253,11 @@
+ 				status = "okay";
+ 				vmmc = <&reg_3p3v>;
+ 				wp-inverted;
++				cap-sd-highspeed;
++				sd-uhs-sdr12;
++				sd-uhs-sdr25;
++				sd-uhs-sdr50;
++				sd-uhs-ddr50;
+ 			};
+ 
+ 			usb@58000 {
+-- 
+2.7.4
+

docs/files/sdcard/run_sdcard_test.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+get_flash_information() {
+	# http://www.bunniestudios.com/blog/?page_id=1022
+	while read Device ; do
+		DeviceNode="${Device%/*}"
+		DeviceName="${DeviceNode##*/}"
+		echo -e "\n### ${DeviceName} info:\n"
+		find "${DeviceNode}" -maxdepth 1 -type f | while read ; do
+			NodeName="${REPLY##*/}"
+			echo -e "$(printf "%20s" ${NodeName}): $(cat "${DeviceNode}/${NodeName}" | tr '\n' " ")"
+		done
+
+		oem=$(cat ${DeviceNode}/name)
+		CardName="${DeviceName}-[${oem//[^a-zA-Z0-9]/_}]"
+	done <<< $(find /sys -name oemid)
+} # get_flash_information
+
+get_flash_information > card_info.txt
+LOGFILE="SD_test_${CardName}_$(date +%Y%m%d_%H%M%S).log"
+
+[[ -d /mnt/sdcard ]] || mkdir -p /mnt/sdcard
+mount /dev/mmcblk0p1 /mnt/sdcard
+result=$?
+
+if [[ $result -ne 0 ]]; then
+	echo "failed to mount SD card. Stopped the test"
+	exit 1
+fi
+
+cat card_info.txt | tee -a $LOGFILE
+rm -f card_info.txt
+
+echo -e "\n\n===============================\n\n" >> $LOGFILE
+
+echo "Start benchmarking ..." | tee -a ${LOGFILE}
+echo "Please wait"
+echo -e "\n\n1st run\n\n" | tee -a ${LOGFILE}
+iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2 -f /mnt/sdcard/iozone-test.dat | tee -a ${LOGFILE}
+echo -e "\n\n===============================\n\n" >> $LOGFILE
+
+echo -e "\n\n2nd run\n\n" | tee -a ${LOGFILE}
+iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2 -f /mnt/sdcard/iozone-test.dat | tee -a ${LOGFILE}
+echo -e "\n\n===============================\n\n" >> $LOGFILE
+
+umount /mnt/sdcard
+echo "Done" | tee -a ${LOGFILE}