SATA

Introduction

There are 1 SATA ports and 1 M.2 SATA port on the AIO-3588SJD4
development board.


Precautions:

M.2 SATA interface, please select <font color=#ff00>SATA protocol SSD
</font> instead of NVME protocol SSD

Software configuration

The 1 SATA ports and 1 M.2 SATA port on the AIO-3588SJD4  development
board are all ports extended by the "USB3.0" expansion chip.

DTS configuration

Generally, configure the power supply pins in DTS according to the
schematic diagram, select the correct controller node and PHY node to
enable.

There is the following configuration in
"kernel-5.10/arch/arm64/boot/dts/rockchip/aio-3588sjd4.dtsi":

       vcc_3v0_sata: vcc-3v0-sata-regulator {
           compatible = "regulator-fixed";
           regulator-name = "vcc_3v0_sata";
           regulator-always-on;
           enable-active-high;
           status = "okay";
           gpio = <&pca9555 PCA_IO0_0 GPIO_ACTIVE_HIGH>;
       };

   &combphy2_psu {
           status = "okay";
   };

   &usbhost3_0 {
           status = "okay";
   };

   &usbhost_dwc3_0 {
           status = "okay";
           dr_mode = "host";
   };

   &vcc5v0_host {
           status = "okay";
           /delete-property/ regulator-boot-on;
           gpio = <&pca9555 PCA_IO0_1 GPIO_ACTIVE_HIGH>;
           /delete-property/ pinctrl-names;
           /delete-property/ pinctrl-0;
   };

"usbhost3_0 usbhost_dwc3_0"：USB3.0 controller node

"combphy2_ps"：PHY node

"vcc_3v0_sata"：M.2 SATA power pin node

Mount

Auto mount

Format the hard drive to a usable format in the Android system
interface to mount it automatically at boot

Command to mount manually

Find device nodes

   ls /dev/block/sd*                                 
   /dev/block/sda
   /dev/block/sda1
   /dev/block/sdb
   /dev/block/sdb1

Formatted as EXT4 file format

   mkfs.ext4 /dev/block/sda1
   mkfs.ext4 /dev/block/sdb1

Mount

   mount /dev/block/sda1 /mnt/media_rw/
   mount /dev/block/sdb1 /mnt/media_rw/

View the mount path

   df -h
   /dev/block/sda               916G  24K  916G   1% /mnt/media_rw

or

   cat /proc/mounts  | grep sda
   /dev/block/sda /mnt/media_rw ext4 rw,seclabel,relatime 0 0

Read and write speed

The transfer rate of SATA3.0 is theoretically 6.0 Gbps. You can refer
to the following commands to test the read and write speed:

dd

   # The path is modified according to the actual mount path
   # Write 1G file
   echo 3 > /proc/sys/vm/drop_caches
   busybox dd if=/dev/zero of=/mnt/media_rw/41AD-09EA/test1 bs=1M count=1024 conv=sync
   # Read 1G file
   echo 3 > /proc/sys/vm/drop_caches
   busybox dd if=/mnt/media_rw/41AD-09EA/test1 of=/dev/null conv=sync

fio

   # Using fio will format the hard drive
   # Write
   fio -filename=/dev/block/sda1 -direct=1 -iodepth 1 -thread -rw=write -ioengine=psync -bs=1M -size=200G -numjobs=30 -runtime=60 -group_reporting -name=mytes
   # Read
   fio -filename=/dev/block/sdb1 -direct=1 -iodepth 1 -thread -rw=read -ioengine=psync -bs=1M -size=200G -numjobs=30 -runtime=60 -group_reporting -name=mytes