Enable SATA command in u-boot?

Technical Support
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1

How would I go about adding the sata command to u-boot? I have tried adding the following to the u-boot defconfig file:

diff -Naur /home/build/oe-core/build/tmp/work/apalis_imx8-tdx-linux/u-boot-toradex/2018.03-r0/git/configs/apalis-imx8_defconfig git/configs/apalis-imx8_defconfig
--- /home/build/oe-core/build/tmp/work/apalis_imx8-tdx-linux/u-boot-toradex/2018.03-r0/git/configs/apalis-imx8_defconfig	2020-08-04 23:31:17.757010000 +0000
+++ git/configs/apalis-imx8_defconfig	2020-08-05 00:31:38.469762000 +0000
@@ -69,3 +69,10 @@
 CONFIG_VIDEO_IMX_HDP_LOAD=y
 CONFIG_OF_LIBFDT_OVERLAY=y
 # CONFIG_EFI_LOADER is not set
+CONFIG_AHCI=y
+CONFIG_SATA=y
+CONFIG_LIBATA=y
+CONFIG_SATA_IMX=y
+CONFIG_CMD_SATA=y
+CONFIG_SYS_SATA_MAX_DEVICE=1

and removed some errors that would occur in f_fastboot.c:

diff -Naur /home/build/oe-core/build/tmp/work/apalis_imx8-tdx-linux/u-boot-toradex/2018.03-r0/git/drivers/usb/gadget/f_fastboot.c git/drivers/usb/gadget/f_fastboot.c
--- /home/build/oe-core/build/tmp/work/apalis_imx8-tdx-linux/u-boot-toradex/2018.03-r0/git/drivers/usb/gadget/f_fastboot.c	2020-08-04 23:31:18.068010000 +0000
+++ git/drivers/usb/gadget/f_fastboot.c	2020-08-05 00:32:57.096856000 +0000
@@ -1390,7 +1390,7 @@
 static int _fastboot_parts_load_from_ptable(void)
 {
 	int i;
-#ifdef CONFIG_CMD_SATA
+#ifdef CONFIG_CMD_SATAx
 	int sata_device_no;
 #endif
 
@@ -1405,7 +1405,7 @@
 
 	/* sata case in env */
 	if (fastboot_devinfo.type == DEV_SATA) {
-#ifdef CONFIG_CMD_SATA
+#ifdef CONFIG_CMD_SATAx
 		puts("flash target is SATA\n");
 		if (sata_initialize())
 			return -1;

The resulting u-boot is functional, but any use of the sata command gives an error:

Apalis iMX8 # sata init
"Synchronous Abort" handler, esr 0x96000007
elr: 000000008004b0c8 lr : 0000000080031f90 (reloc)
elr: 00000000ffeb90c8 lr : 00000000ffe9ff90
x0 : 0000000000000000 x1 : 00000000fd699f80
x2 : 00000000fd699f80 x3 : 00000000fd697370
x4 : 000000000000000d x5 : 000000000000000d
x6 : 00000000fd698760 x7 : 0000000000000000
x8 : 00000000fd67e030 x9 : 0000000000000008
x10: 00000000ffffffd8 x11: 0000000000000006
x12: 000000000001869f x13: 000000000000c270
x14: 00000000fd67e24c x15: 0000000000000002
x16: 0000000000002080 x17: 0000000000000000
x18: 00000000fd68bda8 x19: 00000000fff0e000
x20: 0000000000000000 x21: 0000000000000000
x22: 0000000000000002 x23: 00000000fff25840
x24: 0000000000000002 x25: 0000000000000000
x26: 0000000000000000 x27: 0000000000000000
x28: 00000000fd698560 x29: 00000000fd67e0a0

Resetting CPU ...

resetting ...

What am I missing?

2

I don’t think we ever tried SATA in the boot loader. What exactly is it that you are trying to achieve?

3

I would like to be able to use SATA as the source for the kernel and root file system, in place of the MMC.

4

Root file system no problem as the Linux Kernel is taking care of that one. As for the kernel just load it from somewhere else for now.

5

I’m unclear what you mean by this. I similarly want to put the kernel and rootfs on a SATA drive but still use the u-boot on the eMMC to use the sataboot command. I’ve been told that the iMX8 module won’t recognize u-boot on anything other than an eMMC but I could at least put the kernel and rootfs on the SATA SSD.

1 Like
6

Hi @jonk4m,

Because this is a very old topic, could you please create a new topic in our community for us to better understand and help you with your problem?

Best Regards,
Hiago.

7

hi, @jonk4m
I’m trying to achieve the same result as you do, boot os kernel from SATA drive. Did you get it running? Any suggestions?

8

@d_makarenko

I managed to get TorizonCore to boot from an SSD by telling the initramfs to look for the TorizonCore partition on my SSD using the tdxargs U-Boot parameter.

It actually wasn’t that hard once I knew what I was doing, and I’ve gotten great performance so far.

I built Torizon in Yocto (standard build, absolutely nothing special) then edited the image.json file from the torizon-core-docker-blah-blah-Tezi-blah-blah.tar to only include the bootfs for the eMMC. I then used the same Yocto Tezi build to extract both the bootfs and rootfs to the SSD (you must be root when extracting).