[AMD Official Use Only - AMD Internal Distribution Only] > From: Simek, Michal <[email protected]> > Sent: Thursday, December 4, 2025 3:31 PM > To: Begari, Padmarao <[email protected]>; [email protected]; > [email protected] > Cc: git (AMD-Xilinx) <[email protected]>; Toomey, John <[email protected]> > Subject: Re: [RFC PATCH] efi_loader: disk: Add print to show ESP device > > > > On 12/4/25 10:47, Padmarao Begari wrote: > > Print a message for debug purposes when an EFI System Partition > > (ESP) is detected on the device to indicate how many devices are > > detected. Only one ESP device is used for capsule update; if multiple > > ESP devices are found, it may indicate corruption in UEFI variables. > > This is for informational purposes only, as the number of removable > > media connected to a given board cannot be controlled. > > > > Signed-off-by: Padmarao Begari <[email protected]> > > --- > > lib/efi_loader/efi_disk.c | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c > > index 130c4db9606..8391de1527c 100644 > > --- a/lib/efi_loader/efi_disk.c > > +++ b/lib/efi_loader/efi_disk.c > > @@ -565,6 +565,11 @@ static efi_status_t efi_disk_add_dev( > > diskobj->media.removable_media, > > diskobj->media.last_block); > > > > + if (part_info && part_info->bootable & PART_EFI_SYSTEM_PARTITION) > > + printf("EFI system partition: %s %x:%x\n", > > + blk_get_uclass_name(desc->uclass_id), > > + desc->devnum, part); > > + > > /* Store first EFI system partition */ > > if (part && efi_system_partition.uclass_id == UCLASS_INVALID) { > > if (part_info && > > how does the output look like? > U-Boot is showing like below for SD over USB and UFS device if both have ESP ------------------------------------------------------------------------------- In: serial@f1930000 Out: serial@f1930000 Err: serial@f1930000 Bus usb@f1c00000: Register 1000440 NbrPorts 1 Starting the controller USB XHCI 1.10 scanning bus usb@f1c00000 for devices... ------------------------------------------------------- EFI system partition: usb 0:1 ----> this is for SD over USB ------------------------------------------------------- 4 USB Device(s) found scanning usb for storage devices... 2 Storage Device(s) found ufs-versal2-pltfm ufs@f10b0000: [RX, TX]: gear=[4, 4], lane[2, 2], pwr[FAST MODE, FAST MODE], rate = 2 scanning bus for devices... ------------------------------------------ EFI system partition: scsi 0:1 ----> this is for UFS ------------------------------------------ Device 0: (0:0) Vendor: MICRON Prod.: MT064GBCAV1U31AA Rev: 0302 Type: Hard Disk Capacity: 20480.0 MB = 20.0 GB (5242880 x 4096) Device 1: (0:1) Vendor: MICRON Prod.: MT064GBCAV1U31AA Rev: 0302 Type: Hard Disk Capacity: 1024.0 MB = 1.0 GB (262144 x 4096) Device 2: (0:2) Vendor: MICRON Prod.: MT064GBCAV1U31AA Rev: 0302 Type: Hard Disk Capacity: 4096.0 MB = 4.0 GB (1048576 x 4096) Bootmode: JTAG_MODE Net: ZYNQ GEM: f1a60000, mdio bus f1a60000, phyaddr 1, interface rgmii-id
Warning: ethernet@f1a60000 (eth0) using random MAC address - 8e:d1:49:4c:3a:93 eth0: ethernet@f1a60000 ZYNQ GEM: ed920000, mdio bus ed920000, phyaddr 0, interface 10gbase-r Warning: ethernet@ed920000 (eth1) using random MAC address - 02:3c:10:99:bc:18 , eth1: ethernet@ed920000 Hit any key to stop autoboot: 0 versal2> ------------------------------------------------------------------------------- > M
