AM625: eMMC clock frequency changing during startup

Tony Tang

Mastermind 30787 points

Part Number: AM625

Customer made different product based on SDK8.3 and SDK9.2.1.9. captured eMMC clock changing process as below.

1: SDK8.3: (usual boot): 400K---25M--3.125M-400K---25M--200M---400K---25M---200M--400K--25M--200M

#2. SDK8.3: (Falcon Boot): 400K---25M-------------400K---25M--200M---400K------------200M

#3. SDK9.2: (Falcon Boot): 400K---25M-------------400K---25M--50M-----400K---50M---200M

We want to map the eMMC clock frquency changes to different bootup stages.

#1. What is the eMMC clock frequency during eMMC ROM bootloader stage? 400KHz and 25MHz of the first stage?

#2. Is the clock frequency initialized from low to high according to dts parameter? seems it is right in SDK9.2 (UBOOT 2023), but with SDK8.3 UBOOT 2021, there isn't 50MHz stage.

#3. With the default SDK9.2, 50MHz stage is DDR52 mode, which is not supported in later spec, but it doesn't cause only problem so far, is there risk to remain it as many product deployed to field already.

[UPDATED]

I add log print in uboot and Kernel sdhci_set_ios() as below:

UBoot patch:

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/print_5F00_emmc_5F00_status_5F00_sdk9.2.1.9.uboot.patch

Kernel patch:

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/7140.print_5F00_emmc_5F00_status_5F00_sdk9.2.1.9.kernel.patch

Got log:
sdk9.2.1.9-emmc-status-debug.log

there is 2 stage working at 52MHz

Starting kernel ...

[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] clock=52000000 Hz, ddr_mode=1, bus_width=8,signal_voltage=2
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]

The ddr_mode can be changed to 0 by modifying dts:

	bus-width = <8>;
-		mmc-ddr-1_8v;
+		//mmc-ddr-1_8v;
 		mmc-hs200-1_8v;
 		ti,clkbuf-sel = <0x7>;
 		ti,otap-del-sel-legacy = <0x0>;
 		ti,otap-del-sel-mmc-hs = <0x0>;
-		ti,otap-del-sel-ddr52 = <0x5>;
-		ti,otap-del-sel-hs200 = <0x5>;
-		ti,itap-del-sel-legacy = <0xa>;
-		ti,itap-del-sel-mmc-hs = <0x1>;
+		//ti,otap-del-sel-ddr52 = <0x5>;
+		//ti,otap-del-sel-hs200 = <0x5>;
+		//ti,itap-del-sel-legacy = <0xa>;
+		//ti,itap-del-sel-mmc-hs = <0x1>;
+		ti,otap-del-sel-hs200 = <0x6>;
+		ti,itap-del-sel-legacy = <0x0>;
+		ti,itap-del-sel-mmc-hs = <0x0>;
 		status = "disabled";
 	};

Starting kernel ...

[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[SDHCI] clock=52000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]

Kernel:

root@am62xx-evm:~# dmesg |grep "clock="
[    1.270021] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.307599] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.342851] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.355968] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.373084] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.408575] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.422350] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.435004] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.442479] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.453718] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.470951] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.485144] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.513176] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.519823] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.528949] [SDHCI-KERNEL] clock=400000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.539458] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.546688] [SDHCI-KERNEL] clock=52000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.561068] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.566518] [SDHCI-KERNEL] clock=200000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.576927] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    1.615585] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.653501] [SDHCI-KERNEL] clock=300000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.676933] [SDHCI-KERNEL] clock=300000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.689585] [SDHCI-KERNEL] clock=300000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.704899] [SDHCI-KERNEL] clock=300000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.715332] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    1.726445] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.764296] [SDHCI-KERNEL] clock=200000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.788086] [SDHCI-KERNEL] clock=200000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.800849] [SDHCI-KERNEL] clock=200000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.818040] [SDHCI-KERNEL] clock=200000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.828718] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    1.839806] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.877663] [SDHCI-KERNEL] clock=100000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.902677] [SDHCI-KERNEL] clock=100000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.915720] [SDHCI-KERNEL] clock=100000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.938522] [SDHCI-KERNEL] clock=100000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.949841] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    2.998773] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    3.021521] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0

5 days ago

0 Tony Tang 3 days ago

TI__Mastermind 30787 points

I test on SDK12.01 with updated patch also. get log:

UBoot patch:

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/sdk12.1_2D00_uboot_2D00_emmc_2D00_status_2D00_debug.patch

Kernel Patch:

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/sdk12.1_2D00_kernel_2D00_emmc_2D00_status_2D00_debug.patch

log

Fullscreen sdk12.1-emmc-status-debug.log Download

U-Boot SPL 2026.01-g5fb294342321-dirty (Oct 12 2026 - 14:44:48 +0800)
SYSFW ABI: 4.0 (firmware rev 0x000c '12.1.2--v12.01.02 (Clever Cat)')
Set clock rates for '/a53@0', CPU: 1250MHz at Speed Grade 'T'
SPL initial stack usage: 13440 bytes
Trying to boot from MMC1
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0, signal_voltage=0
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1, signal_voltage=0
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1, signal_voltage=0
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=0
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=0
[SDHCI] clock=52000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=0
Authentication passed
Authentication passed
Authentication passed
Authentication passed
Authentication passed
Starting ATF on ARM64 core...

NOTICE:  BL31: v2.15.0(release):v2.15.0
NOTICE:  BL31: Built : 16:29:49, May 28 2026

U-Boot SPL 2026.01-g5fb294342321-dirty (Oct 12 2026 - 14:45:13 +0800)
SYSFW ABI: 4.0 (firmware rev 0x000c '12.1.2--v12.01.02 (Clever Cat)')
SPL initial stack usage: 2016 bytes
MMC: no card present
** Bad device specification mmc 1 **
Couldn't find partition mmc 1:1
Error: could not access storage.
Trying to boot from MMC1
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0, signal_voltage=0
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0, signal_voltage=4
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=2
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
[SDHCI] clock=200000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
Authentication passed
Authentication passed


U-Boot 2026.01-g5fb294342321-dirty (Oct 12 2026 - 14:45:13 +0800)

SoC:   AM62X SR1.0 HS-FS
Reset reason: PIN
Model: Texas Instruments AM625 SK
EEPROM not available at 0x50, trying to read at 0x51
Reading on-board EEPROM at 0x51 failed -19
DRAM:  2 GiB
Core:  93 devices, 35 uclasses, devicetree: separate
MMC:   mmc@fa10000: 0, mmc@fa00000: 1
Loading Environment from nowhere... OK
In:    serial
Out:   serial
Err:   serial
EEPROM not available at 0x50, trying to read at 0x51
Net:   eth0: ethernet@8000000port@1

Hit any key to stop autoboot:  2 Hit any key to stop autoboot: 1Hit any key to stop autoboot: 0
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0, signal_voltage=0
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0, signal_voltage=4
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=2
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
[SDHCI] clock=200000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
switch to partitions #0, OK
mmc0(part 0) is current device
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=8, signal_voltage=4
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=2
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
[SDHCI] clock=200000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=2
SD/MMC found on device 0
Can't set block device
16445952 bytes read in 92 ms (170.5 MiB/s)
Failed to load 'ti-core-initramfs.cpio.xz'
WARNING: Initramfs not found, continuing without initramfs
63556 bytes read in 3 ms (20.2 MiB/s)
Working FDT set to 88000000
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
Working FDT set to 88000000
   Loading Device Tree to 00000000fcd50000, end 00000000fce62fff ... OK
Working FDT set to fcd50000

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 6.18.38-g8933766be737-dirty (tony@tony) (aarch64-oe-linux-gcc (GCC) 15.3.0, GNU ld (GNU Binutils) 2.46.1) #4 SMP PREEMPT_RT Mon Oct 12 14:41:34 CST 2026
[    0.000000] Machine model: Texas Instruments AM625 SK
[    0.000000] earlycon: ns16550a0 at MMIO32 0x0000000002800000 (options '')
[    0.000000] printk: legacy bootconsole [ns16550a0] enabled
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created CMA memory pool at 0x00000000f4c00000, size 128 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x00000000f4c00000..0x00000000fcbfffff (131072 KiB) map reusable linux,cma
[    0.000000] OF: reserved mem: 0x000000009e800000..0x000000009fffffff (24576 KiB) nomap non-reusable optee@9e800000
[    0.000000] OF: reserved mem: 0x0000000080000000..0x000000008007ffff (512 KiB) nomap non-reusable tfa@80000000
[    0.000000] OF: reserved mem: 0x000000009c700000..0x000000009c7fffff (1024 KiB) map non-reusable ramoops@9c700000
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009c800000, size 3 MiB
[    0.000000] OF: reserved mem: initialized node ipc-memories@9c800000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x000000009c800000..0x000000009cafffff (3072 KiB) nomap non-reusable ipc-memories@9c800000
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009cb00000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node m4f-dma-memory@9cb00000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x000000009cb00000..0x000000009cbfffff (1024 KiB) nomap non-reusable m4f-dma-memory@9cb00000
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009cc00000, size 14 MiB
[    0.000000] OF: reserved mem: initialized node m4f-memory@9cc00000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x000000009cc00000..0x000000009d9fffff (14336 KiB) nomap non-reusable m4f-memory@9cc00000
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009da00000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node r5f-dma-memory@9da00000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x000000009da00000..0x000000009dafffff (1024 KiB) nomap non-reusable r5f-dma-memory@9da00000
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009db00000, size 12 MiB
[    0.000000] OF: reserved mem: initialized node r5f-memory@9db00000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x000000009db00000..0x000000009e6fffff (12288 KiB) nomap non-reusable r5f-memory@9db00000
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x000000008007ffff]
[    0.000000]   node   0: [mem 0x0000000080080000-0x000000009c7fffff]
[    0.000000]   node   0: [mem 0x000000009c800000-0x000000009e6fffff]
[    0.000000]   node   0: [mem 0x000000009e700000-0x000000009e7fffff]
[    0.000000]   node   0: [mem 0x000000009e800000-0x000000009fffffff]
[    0.000000]   node   0: [mem 0x00000000a0000000-0x00000000ffffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: Trusted OS migration not required
[    0.000000] psci: SMC Calling Convention v1.5
[    0.000000] percpu: Embedded 20 pages/cpu s41840 r8192 d31888 u81920
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: GICv3 CPU interface
[    0.000000] CPU features: kernel page table isolation disabled by kernel configuration
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] alternatives: applying boot alternatives
[    0.000000] Kernel command line: console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000 root=PARTUUID=27ec1150-01 rw rootfstype=ext4 rootwait
[    0.000000] printk: log buffer data + meta data: 131072 + 458752 = 589824 bytes
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.000000] software IO TLB: SWIOTLB bounce buffer size adjusted to 2MB
[    0.000000] software IO TLB: area num 4.
[    0.000000] software IO TLB: mapped [mem 0x00000000fd600000-0x00000000fd800000] (2MB)
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 524288
[    0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu: 	RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=4.
[    0.000000] rcu: 	RCU_SOFTIRQ processing moved to rcuc kthreads.
[    0.000000] 	No expedited grace period (rcu_normal_after_boot).
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] GICv3: 256 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[    0.000000] Root IRQ handler: 0xffff8000800100c0
[    0.000000] GICv3: GICv3 features: 16 PPIs
[    0.000000] GICv3: GICD_CTLR.DS=0, SCR_EL3.FIQ=1
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000001880000
[    0.000000] ITS [mem 0x01820000-0x0182ffff]
[    0.000000] GIC: enabling workaround for ITS: Socionext Synquacer pre-ITS
[    0.000000] ITS@0x0000000001820000: Devices Table too large, reduce ids 20->19
[    0.000000] ITS@0x0000000001820000: allocated 524288 Devices @80c00000 (flat, esz 8, psz 64K, shr 0)
[    0.000000] ITS: using cache flushing for cmd queue
[    0.000000] GICv3: using LPI property table @0x0000000080450000
[    0.000000] GIC: using cache flushing for LPI property table
[    0.000000] GICv3: CPU0: using allocated LPI pending table @0x0000000080460000
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] arch_timer: cp15 timer running at 200.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0x3ffffffffffffff max_cycles: 0x2e2049d3e8, max_idle_ns: 440795210634 ns
[    0.000001] sched_clock: 58 bits at 200MHz, resolution 5ns, wraps every 4398046511102ns
[    0.000338] Console: colour dummy device 80x25
[    0.000407] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=200000)
[    0.000418] pid_max: default: 32768 minimum: 301
[    0.000511] LSM: initializing lsm=capability
[    0.000659] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.000683] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.009431] rcu: Hierarchical SRCU implementation.
[    0.009442] rcu: 	Max phase no-delay instances is 400.
[    0.043667] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level
[    0.190086] EFI services will not be available.
[    0.266483] smp: Bringing up secondary CPUs ...
[    0.388938] Detected VIPT I-cache on CPU1
[    0.389084] GICv3: CPU1: found redistributor 1 region 0:0x00000000018a0000
[    0.389100] GICv3: CPU1: using allocated LPI pending table @0x0000000080470000
[    0.389154] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.506801] Detected VIPT I-cache on CPU2
[    0.506919] GICv3: CPU2: found redistributor 2 region 0:0x00000000018c0000
[    0.506933] GICv3: CPU2: using allocated LPI pending table @0x0000000080480000
[    0.506971] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.609102] Detected VIPT I-cache on CPU3
[    0.609215] GICv3: CPU3: found redistributor 3 region 0:0x00000000018e0000
[    0.609229] GICv3: CPU3: using allocated LPI pending table @0x0000000080490000
[    0.609266] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.632437] smp: Brought up 1 node, 4 CPUs
[    0.632443] SMP: Total of 4 processors activated.
[    0.632447] CPU: All CPU(s) started at EL2
[    0.632451] CPU features: detected: 32-bit EL0 Support
[    0.632456] CPU features: detected: CRC32 instructions
[    0.684763] alternatives: applying system-wide alternatives
[    0.685277] Memory: 1839952K/2097152K available (10752K kernel code, 1212K rwdata, 2824K rodata, 1152K init, 535K bss, 117228K reserved, 131072K cma-reserved)
[    0.686480] devtmpfs: initialized
[    0.698940] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[    0.698994] posixtimers hash table entries: 2048 (order: 5, 81920 bytes, linear)
[    0.699190] futex hash table entries: 1024 (65536 bytes on 1 NUMA nodes, total 64 KiB, linear).
[    0.701927] 28592 pages in range for non-PLT usage
[    0.701947] 520112 pages in range for PLT usage
[    0.702307] pinctrl core: initialized pinctrl subsystem
[    0.702979] DMI not present or invalid.
[    0.704142] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.705756] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[    0.706653] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.707735] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.707827] audit: initializing netlink subsys (disabled)
[    0.708097] audit: type=2000 audit(0.705:1): state=initialized audit_enabled=0 res=1
[    0.708835] thermal_sys: Registered thermal governor 'step_wise'
[    0.708841] thermal_sys: Registered thermal governor 'power_allocator'
[    0.709079] ASID allocator initialised with 65536 entries
[    0.715087] /bus@f0000/interrupt-controller@1800000: Fixed dependency cycle(s) with /bus@f0000/interrupt-controller@1800000
[    0.715218] /bus@f0000/i2c@20000000/tps6598x@3f/connector: Fixed dependency cycle(s) with /bus@f0000/dwc3-usb@f900000/usb@31000000
[    0.715249] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30200000
[    0.715319] /bus@f0000/dwc3-usb@f900000/usb@31000000: Fixed dependency cycle(s) with /bus@f0000/i2c@20000000/tps6598x@3f/connector
[    0.715394] /bus@f0000/dss@30200000: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
[    0.721372] /bus@f0000/i2c@20000000/tps6598x@3f/connector: Fixed dependency cycle(s) with /bus@f0000/dwc3-usb@f900000/usb@31000000
[    0.721534] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30200000
[    0.722651] /bus@f0000/dwc3-usb@f900000/usb@31000000: Fixed dependency cycle(s) with /bus@f0000/i2c@20000000/tps6598x@3f/connector
[    0.723658] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30200000
[    0.723744] /bus@f0000/dss@30200000: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
[    0.726601] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /connector-hdmi
[    0.726693] /connector-hdmi: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
[    0.728202] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages
[    0.728215] HugeTLB: 0 KiB vmemmap can be freed for a 1.00 GiB page
[    0.728220] HugeTLB: registered 32.0 MiB page size, pre-allocated 0 pages
[    0.728222] HugeTLB: 0 KiB vmemmap can be freed for a 32.0 MiB page
[    0.728227] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[    0.728230] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page
[    0.728234] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages
[    0.728236] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page
[    1.095021] k3-chipinfo 43000014.chipid: Family:AM62X rev:SR1.0 JTAGID[0x0bb7e02f] Detected
[    1.095820] iommu: Default domain type: Translated
[    1.095832] iommu: DMA domain TLB invalidation policy: strict mode
[    1.096342] SCSI subsystem initialized
[    1.096876] usbcore: registered new interface driver usbfs
[    1.096918] usbcore: registered new interface driver hub
[    1.096959] usbcore: registered new device driver usb
[    1.097531] pps_core: LinuxPPS API ver. 1 registered
[    1.097536] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.097550] PTP clock support registered
[    1.097587] EDAC MC: Ver: 3.0.0
[    1.097983] scmi_core: SCMI protocol bus registered
[    1.098316] FPGA manager framework
[    1.100790] vgaarb: loaded
[    1.101297] clocksource: Switched to clocksource arch_sys_counter
[    1.101619] VFS: Disk quotas dquot_6.6.0
[    1.101639] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    1.109245] NET: Registered PF_INET protocol family
[    1.109559] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    1.111227] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 40960 bytes, linear)
[    1.111351] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    1.111364] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    1.111615] TCP bind hash table entries: 16384 (order: 9, 1310720 bytes, linear)
[    1.113071] TCP: Hash tables configured (established 16384 bind 16384)
[    1.113390] UDP hash table entries: 1024 (order: 6, 163840 bytes, linear)
[    1.113636] UDP-Lite hash table entries: 1024 (order: 6, 163840 bytes, linear)
[    1.114063] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    1.114644] RPC: Registered named UNIX socket transport module.
[    1.114652] RPC: Registered udp transport module.
[    1.114656] RPC: Registered tcp transport module.
[    1.114658] RPC: Registered tcp-with-tls transport module.
[    1.114661] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.114678] PCI: CLS 0 bytes, default 64
[    1.115852] Initialise system trusted keyrings
[    1.116095] workingset: timestamp_bits=62 max_order=19 bucket_order=0
[    1.116529] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    1.116824] NFS: Registering the id_resolver key type
[    1.116845] Key type id_resolver registered
[    1.116848] Key type id_legacy registered
[    1.116868] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.116874] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    1.171561] Key type asymmetric registered
[    1.171572] Asymmetric key parser 'x509' registered
[    1.171660] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243)
[    1.171667] io scheduler mq-deadline registered
[    1.171671] io scheduler kyber registered
[    1.171698] io scheduler bfq registered
[    1.175230] pinctrl-single 4084000.pinctrl: 34 pins, size 136
[    1.176128] pinctrl-single f4000.pinctrl: 171 pins, size 684
[    1.185530] Serial: 8250/16550 driver, 12 ports, IRQ sharing enabled
[    1.201531] loop: module loaded
[    1.202854] megasas: 07.734.00.00-rc1
[    1.207635] tun: Universal TUN/TAP device driver, 1.6
[    1.208805] VFIO - User Level meta-driver version: 0.3
[    1.210365] usbcore: registered new interface driver usb-storage
[    1.211100] i2c_dev: i2c /dev entries driver
[    1.211863] sdhci: Secure Digital Host Controller Interface driver
[    1.211868] sdhci: Copyright(c) Pierre Ossman
[    1.212099] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.212867] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping ....
[    1.214023] usbcore: registered new interface driver usbhid
[    1.214029] usbhid: USB HID core driver
[    1.215087] optee: probing for conduit method.
[    1.215130] optee: revision 4.10 (753afbbee1682f5d)
[    1.215574] optee: dynamic shared memory is enabled
[    1.216376] optee: initialized driver
[    1.216466] random: crng init done
[    1.216931] mmio-mux a40000.mux-controller: mux-reg-masks property missing or invalid: -22
[    1.216939] mmio-mux a40000.mux-controller: probe with driver mmio-mux failed with error -22
[    1.217847] NET: Registered PF_PACKET protocol family
[    1.217951] Key type dns_resolver registered
[    1.228470] Loading compiled-in X.509 certificates
[    1.243088] ti-sci 44043000.system-controller: ABI: 4.0 (firmware rev 0x000c '12.1.2--v12.01.02 (Clever Cat)')
[    1.319257] /bus@f0000/i2c@20000000/tps6598x@3f/connector: Fixed dependency cycle(s) with /bus@f0000/dwc3-usb@f900000/usb@31000000
[    1.319412] omap_i2c 20000000.i2c: bus 0 rev0.12 at 400 kHz
[    1.320872] /connector-hdmi: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
[    1.320960] /bus@f0000/dss@30200000: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
[    1.321033] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /connector-hdmi
[    1.321105] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30200000
[    1.321663] omap_i2c 20010000.i2c: bus 1 rev0.12 at 100 kHz
[    1.323309] omap_i2c 20020000.i2c: bus 2 rev0.12 at 400 kHz
[    1.323590] ti-sci-intr bus@f0000:interrupt-controller@a00000: Interrupt Router 3 domain created
[    1.324220] ti-sci-inta 48000000.interrupt-controller: Interrupt Aggregator domain 28 created
[    1.325967] ti-udma 485c0100.dma-controller: Number of rings: 82
[    1.329466] ti-udma 485c0100.dma-controller: Channels: 48 (bchan: 18, tchan: 12, rchan: 18)
[    1.333029] ti-udma 485c0000.dma-controller: Number of rings: 150
[    1.339358] ti-udma 485c0000.dma-controller: Channels: 35 (tchan: 20, rchan: 15)
[    1.342421] OF: /bus@f0000/serial@2800000: Read of boolean property 'wakeup-source' with a value.
[    1.343127] printk: legacy console [ttyS2] disabled
[    1.634116] 2800000.serial: ttyS2 at MMIO 0x2800000 (irq = 237, base_baud = 3000000) is a 8250
[    1.643016] printk: legacy console [ttyS2] enabled
[    1.643016] printk: legacy console [ttyS2] enabled
[    1.643022] printk: legacy bootconsole [ns16550a0] disabled
[    1.643022] printk: legacy bootconsole [ns16550a0] disabled
[    1.670309] spi-nor spi0.0: supply vcc not found, using dummy regulator
[    1.671881] 7 fixed-partitions partitions found on MTD device fc40000.spi.0
[    1.671899] Creating 7 MTD partitions on "fc40000.spi.0":
[    1.671907] 0x000000000000-0x000000080000 : "ospi.tiboot3"
[    1.673650] 0x000000080000-0x000000280000 : "ospi.tispl"
[    1.675136] 0x000000280000-0x000000680000 : "ospi.u-boot"
[    1.676883] 0x000000680000-0x0000006c0000 : "ospi.env"
[    1.678726] 0x0000006c0000-0x000000700000 : "ospi.env.backup"
[    1.680827] 0x000000800000-0x000003fc0000 : "ospi.rootfs"
[    1.685629] 0x000003fc0000-0x000004000000 : "ospi.phypattern"
[    1.687938] am65-cpsw-nuss 8000000.ethernet: initializing am65 cpsw nuss version 0x6BA01103, cpsw version 0x6BA81103 Ports: 3 quirks:00000006
[    1.688080] am65-cpsw-nuss 8000000.ethernet: RGMII mode without internal TX delay unsupported; please fix your Device Tree
[    1.688170] am65-cpsw-nuss 8000000.ethernet: RGMII mode without internal TX delay unsupported; please fix your Device Tree
[    1.688240] am65-cpsw-nuss 8000000.ethernet: Use random MAC address
[    1.688918] davinci_mdio 8000f00.mdio: Configuring MDIO in manual mode
[    1.722291] davinci_mdio 8000f00.mdio: davinci mdio revision 9.7, bus freq 1000000
[    1.726288] davinci_mdio 8000f00.mdio: phy[0]: device 8000f00.mdio:00, driver TI DP83867
[    1.726301] davinci_mdio 8000f00.mdio: phy[1]: device 8000f00.mdio:01, driver TI DP83867
[    1.726460] am65-cpsw-nuss 8000000.ethernet: initialized cpsw ale version 1.5
[    1.726468] am65-cpsw-nuss 8000000.ethernet: ALE Table size 512, Policers 32
[    1.727586] am65-cpsw-nuss 8000000.ethernet: CPTS ver 0x4e8a010c, freq:500000000, add_val:1 pps:1
[    1.830976] am65-cpsw-nuss 8000000.ethernet: set new flow-id-base 19
[    1.837567] /bus@f0000/i2c@20000000/tps6598x@3f/connector: Fixed dependency cycle(s) with /bus@f0000/dwc3-usb@f900000/usb@31000000
[    1.837749] /bus@f0000/dwc3-usb@f900000/usb@31000000: Fixed dependency cycle(s) with /bus@f0000/i2c@20000000/tps6598x@3f/connector
[    1.843780] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    1.843814] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[    1.843972] xhci-hcd xhci-hcd.0.auto: USB3 root hub has no ports
[    1.843987] xhci-hcd xhci-hcd.0.auto: hcc params 0x0258fe6d hci version 0x110 quirks 0x0000808020000010
[    1.844220] xhci-hcd xhci-hcd.0.auto: irq 251, io mem 0x31100000
[    1.845228] hub 1-0:1.0: USB hub found
[    1.845261] hub 1-0:1.0: 1 port detected
[    1.848202] mmc0: CQHCI version 5.10
[    1.849485] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.856064] pca953x 1-0022: supply vcc not found, using dummy regulator
[    1.856417] pca953x 1-0022: using AI
[    1.875444] clk: Disabling unused clocks
[    1.877587] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.884704] PM: genpd: Disabling unused power domains
[    1.885326] mmc1: CQHCI version 5.10
[    1.889747] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.890175] mmc0: SDHCI controller on fa10000.mmc [fa10000.mmc] using ADMA 64-bit
[    1.891071] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.893784] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.898303] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.907596] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.920161] mmc1: SDHCI controller on fa00000.mmc [fa00000.mmc] using ADMA 64-bit
[    1.920253] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    1.920446] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.920482] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.923185] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.950201] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.963817] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.965907] [SDHCI-KERNEL] clock=400000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.965942] [SDHCI-KERNEL] clock=52000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.966014] [SDHCI-KERNEL] clock=200000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.975886] mmc0: Command Queue Engine enabled
[    1.975915] mmc0: new HS200 MMC card at address 0001
[    1.977387] mmcblk0: mmc0:0001 S0J56X 14.8 GiB
[    1.979879]  mmcblk0: p1
[    1.980454] mmcblk0boot0: mmc0:0001 S0J56X 31.5 MiB
[    1.982734] mmcblk0boot1: mmc0:0001 S0J56X 31.5 MiB
[    1.984836] mmcblk0rpmb: mmc0:0001 S0J56X 4.00 MiB, chardev (238:0)
[    2.134938] check access for rdinit=/init failed: -2, ignoring
[    2.276969] EXT4-fs (mmcblk0p1): recovery complete
[    2.277891] EXT4-fs (mmcblk0p1): mounted filesystem 2cd65de3-d4f8-4da4-a18b-2ba0f3b187d0 r/w with ordered data mode. Quota mode: none.
[    2.277993] VFS: Mounted root (ext4 filesystem) on device 179:1.
[    2.279827] devtmpfs: mounted
[    2.280702] Freeing unused kernel memory: 1152K
[    2.280822] Run /sbin/init as init process
[    2.398564] systemd[1]: System time before build time, advancing clock.
[    2.418090] systemd[1]: systemd 255.21^ running in system mode (+PAM -AUDIT -SELINUX -APPARMOR +IMA -SMACK +SECCOMP -GCRYPT -GNUTLS -OPENSSL +ACL +BLKID -CURL -ELFUTILS -FIDO2 -IDN2 -IDN -IPTC +KMOD -LIBCRYPTSETUP +LIBFDISK -PCRE2 -PWQUALITY -P11KIT -QRENCODE -TPM2 -BZIP2 -LZ4 -XZ -ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    2.418126] systemd[1]: Detected architecture arm64.

Welcome to Arago 2025.01!

[    2.461077] systemd[1]: Hostname set to <am62xx-evm>.
[    2.664836] systemd[1]: Configuration file /usr/lib/systemd/system/ti-apps-launcher.service is marked executable. Please remove executable permission bits. Proceeding anyway.
[    2.699183] systemd[1]: Configuration file /usr/lib/systemd/system/seva-launcher.service is marked executable. Please remove executable permission bits. Proceeding anyway.
[    2.734038] systemd[1]: Binding to IPv6 address not available since kernel does not support IPv6.
[    2.734082] systemd[1]: Binding to IPv6 address not available since kernel does not support IPv6.
[    2.923831] systemd[1]: Queued start job for default target Graphical Interface.
[  OK  ] Created slice Slice /system/getty    2.941626] systemd[1]: Created slice Slice /system/getty.
0m.
[  OK  ] Created slice Slice /system/modprob[    2.957922] systemd[1]: Created slice Slice /system/modprobe.
e.
[  OK  ] Created slice Slice /system/serial-[    2.972872] systemd[1]: Created slice Slice /system/serial-getty.
getty.
[    2.987224] systemd[1]: Created slice User and Session Slice.
[  OK  ] Created slice User and Session Slice.
[  OK  ] Started Dispatch Password Requests [    3.000790] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
to Console Directory Watch.
[  OK  ] Started Forward Password Requests t[    3.018692] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
o Wall Directory Watch.
         Expecting device /dev/ttyS2...
[    3.036521] systemd[1]: Expecting device /dev/ttyS2...
[  OK  ] Reached target Path Units.
[    3.046872] systemd[1]: Reached target Path Units.
[  OK  ] Reached target Remote File Systems systemd[1]: Reached target Remote File Systems.
[0m.
[  OK  ] Reached target Slice Units.
[    3.071456] systemd[1]: Reached target Slice Units.
[  OK  ] Reached target Swaps.
[    3.082072] systemd[1]: Reached target Swaps.
[  OK  ] Listening on RPCbind Server Activat[    3.094990] systemd[1]: Listening on RPCbind Server Activation Socket.
ion Socket.
[  OK  ] Reached target RPC Port Mapper.[    3.110560] systemd[1]: Reached target RPC Port Mapper.

[  OK  ] Listening on Process Core Dump Sock[    3.131663] systemd[1]: Listening on Process Core Dump Socket.
et.
[  OK  ] Listening on initctl Compatibility [    3.145939] systemd[1]: Listening on initctl Compatibility Named Pipe.
Named Pipe.
[  OK  ] Listening on Journal Audit Socket    3.162681] systemd[1]: Listening on Journal Audit Socket.
0m.
[    3.176114] systemd[1]: systemd-journald-dev-log.socket: SO_PASSSEC failed: Operation not supported
[    3.176252] systemd[1]: Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[    3.199063] systemd[1]: systemd-journald.socket: SO_PASSSEC failed: Operation not supported
[    3.199177] systemd[1]: systemd-journald.socket: SO_PASSSEC failed: Operation not supported
[    3.199249] systemd[1]: Listening on Journal Socket.
[  OK  ] Listening on Journal Socket.
[  OK  ] Listening on Network Service Netlin[    3.229371] systemd[1]: Listening on Network Service Netlink Socket.
k Socket.
[  OK  ] Listening on udev Control Socket    3.246765] systemd[1]: Listening on udev Control Socket.
m.
[    3.260120] systemd[1]: Listening on udev Kernel Socket.
[  OK  ] Listening on udev Kernel Socket.
[    3.274109] systemd[1]: Listening on User Database Manager Socket.
[  OK  ] Listening on User Database Manager Socket.
         Mounting Huge Pages File System...
[    3.300817] systemd[1]: Mounting Huge Pages File System...
         Mounting POSIX Message Queue File System..[    3.319833] systemd[1]: Mounting POSIX Message Queue File System...
.
         Mounting Kernel Debug File System...
[    3.337904] systemd[1]: Mounting Kernel Debug File System...
[    3.350154] systemd[1]: Kernel Trace File System was skipped because of an unmet condition check (ConditionPathExists=/sys/kernel/tracing).
[    3.354927] systemd[1]: Mounting Temporary Directory /tmp...
         Mounting Temporary Directory /tmp...
[    3.369573] systemd[1]: Create List of Static Device Nodes was skipped because of an unmet condition check (ConditionFileNotEmpty=/lib/modules/6.18.38-g8933766be737-dirty/modules.devname).
[    3.373947] systemd[1]: Starting Load Kernel Module configfs...
         Starting Load Kernel Module configfs...
         Starting Load Kernel Module drm...
[    3.415374] systemd[1]: Starting Load Kernel Module drm...
[    3.432094] systemd[1]: Starting Load Kernel Module fuse...
         Starting Load Kernel Module fuse...
[    3.456121] systemd[1]: Starting Start psplash boot splash screen...
         Starting Start psplash boot splash screen...
         Starting RPC Bind...[    3.480363] systemd[1]: Starting RPC Bind...

[    3.492196] systemd[1]: File System Check on Root Device was skipped because of an unmet condition check (ConditionPathIsReadWrite=!/).
[    3.493587] systemd[1]: systemd-journald.service: unit configures an IP firewall, but the local system does not support BPF/cgroup firewalling.
[    3.493612] systemd[1]: systemd-journald.service: (This warning is only shown for the first unit using IP firewalling.)
[    3.518141] systemd[1]: Starting Journal Service...
         Starting Journal Service...
         Starting Load Kernel Modules...
[    3.547435] systemd[1]: Starting Load Kernel Modules...
         Starting Generate network units from Kernel co[    3.565506] systemd[1]: Starting Generate network units from Kernel command line...
mmand line...
[    3.577160] systemd[1]: Starting Remount Root and Kernel File Systems...
[    3.579602] systemd-journald[146]: Collecting audit messages is enabled.
         Starting Remount Root and Kernel File Systems...
[    3.614335] systemd[1]: Starting Create Static Device Nodes in /dev gracefully...
         Starting Create Static Device Nodes in /dev gracefully...
[    3.648142] systemd[1]: Starting Coldplug All udev Devices...
         Starting Coldplug All udev Devices...
[  OK  ] Started RPC Bind.
[    3.672420] EXT4-fs (mmcblk0p1): re-mounted 2cd65de3-d4f8-4da4-a18b-2ba0f3b187d0.
[    3.672506] systemd[1]: Started RPC Bind.
[  OK  ] Started Journal Service.
[    3.692410] systemd[1]: Started Journal Service.
[  OK  ] Mounted Huge Pages File System.
[  OK  ] Mounted POSIX Message Queue File System.
[  OK  ] Mounted Kernel Debug File System.
[  OK  ] Mounted Temporary Directory /tmp.
[  OK  ] Finished Load Kernel Module configfs.
[  OK  ] Finished Load Kernel Module drm.
[  OK  ] Finished Load Kernel Module fuse.
[FAILED] Failed to start Start psplash boot splash screen.
See 'systemctl status psplash-start.service' for details.
[DEPEND] Dependency failed for Start psplas�temd progress communication helper.
[  OK  ] Finished Load Kernel Modules.
[  OK  ] Finished Generate network units from Kernel command line.
[  OK  ] Finished Remount Root and Kernel File Systems.
[  OK  ] Finished Create Static Device Nodes in /dev gracefully.
         Mounting Kernel Configuration File System...
         Starting Flush Journal to Persistent Storage...
         Starting Apply Kernel Variables...
         Starting Create Static Device Nodes in /dev...
[  OK  ] Mounted Kernel Configuration File S[    3.948753] systemd-journald[146]: Received client request to flush runtime journal.
ystem.
[  OK  ] Finished Flush Journal to Persistent Storage.
[  OK  ] Finished Apply Kernel Variables.
[  OK  ] Finished Create Static Device Nodes in /dev.
[  OK  ] Reached target Preparation for Local File Systems.
         Mounting /var/volatile...
         Starting Rule-based Manager for Device Events and Files...
[  OK  ] Mounted /var/volatile.
         Starting Load/Save OS Random Seed...
[  OK  ] Reached target Local File Systems.
         Starting Create System Files and Directories...
[  OK  ] Finished Load/Save OS Random Seed.
         Starting User Database Manager...
[  OK  ] Finished Create System Files and Directories.
         Starting Network Name Resolution...
         Starting Network Time Synchronization...
         Starting Record System Boot/Shutdown in UTMP...
[  OK  ] Finished Record System Boot/Shutdown in UTMP.
[  OK  ] Started User Database Manager.
[  OK  ] Started Rule-based Manager for Device Events and Files.
[  OK  ] Finished Coldplug All udev Devices.
[  OK  ] Started Network Time Synchronization.
[  OK  ] Reached target System Time Set.
[  OK  ] Started Network Name Resolution.
[  OK  ] Reached target Host and Network Name Lookups.
[  OK  ] Reached target System Initialization.
[  OK  ] Started Daily rotation of log files.
[  OK  ] Started Daily Cleanup of Temporary Directories.
[  OK  ] Reached target Timer Units.
[  OK  ] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
[  OK  ] Listening on D-Bus System Message Bus Socket.
         Starting Docker Socket for the API...
[  OK  ] Listening on dropbear.socket.
[  OK  ] Listening on PC/SC Smart Card Daemon Activation Socket.
         Starting D-Bus System Message Bus...
         Starting Reboot and dump vmcore via kexec...
[  OK  ] Listening on Docker Socket for the API.
[  OK  ] Found device /dev/ttyS2.
[  OK  ] Finished Reboot and dump vmcore via kexec.
[  OK  ] Started D-Bus System Message Bus.
[  OK  ] Reached target Socket Units.
[  OK  ] Reached target Basic System.
[  OK  ] Reached target Hardware activated USB gadget.
[  OK  ] Started Job spooling tools.
         Starting Avahi mDNS/DNS-SD Stack...
[  OK  ] Started Periodic Command Scheduler.
         Starting Print notice about GPLv3 packages...
         Starting IPv6 Packet Filtering Framework...
         Starting IPv4 Packet Filtering Framework...
[  OK  ] Started irqbalance daemon.
[  OK  ] Started Multiple Spanning Tree Protocol Daemon.
         Starting Telephony service...
         Starting PulseAudio Sound System...
         Starting Expand the rootfs partiti�to full size of the boot device....
[  OK  ] Started Seva Launcher Service.
[  OK  ] Started strongSwan IPsec IKEv1/IKEv2 daemon using ipsec.conf.
         Starting User Login Management...
         Starting Telnet Server...
[  OK  ] Finished IPv6 Packet Filtering Framework.
[  OK  ] Finished IPv4 Packet Filtering Framework.
[  OK  ] Started Telephony service.
[  OK  ] Finished Telnet Server.
[  OK  ] Finished Expand the rootfs partition to full size of the boot device..
[  OK  ] Started Avahi mDNS/DNS-SD Stack.
[    6.413812] audit: type=1701 audit(1791789173.914:2): auid=4294967295 uid=990 gid=983 ses=4294967295 pid=422 comm="pulseaudio" exe="/usr/bin/pulseaudio" sig=11 res=1
[  OK  ] Created slice Slice /system/tee-supplicant.
[  OK  ] Reached target Preparation for Network.
         Starting Network Configuration...
         Starting Virtual Console Setup...
[  OK  ] Started TEE Supplicant on teepriv0.
[  OK  ] Started User Login Management.
[  OK  ] Created slice Slice /system/systemd-coredump.
[  OK  ] Started Process Core Dump (PID 459/UID 0).
[  OK  ] Finished Virtual Console Setup.
[  OK  ] Started Network Configuration.
[  OK  ] Reached target Network.
         Starting containerd container runtime...
[    6.938518] am65-cpsw-nuss 8000000.ethernet eth0: PHY [8000f00.mdio:00] driver [TI DP83867] (irq=POLL)
[    6.938978] am65-cpsw-nuss 8000000.ethernet eth0: configuring for phy/rgmii-rxid link mode
         Starting LLDP daemon...
[    6.965675] am65-cpsw-nuss 8000000.ethernet eth1: PHY [8000f00.mdio:01] driver [TI DP83867] (irq=POLL)
[    6.966147] am65-cpsw-nuss 8000000.ethernet eth1: configuring for phy/rgmii-rxid link mode
[  OK  ] Started Netperf Benchmark Server.
         Starting Simple Network Management Protocol (SNMP) Daemon....
         Starting Permit User Sessions...
[  OK  ] Finished Permit User Sessions.
[  OK  ] Started emptty display manager.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyS2.
[  OK  ] Reached target Login Prompts.
         Starting ti-apps-launcher service...
[  OK  ] Started LLDP daemon.
[FAILED] Failed to start PulseAudio Sound System.
See 'systemctl status pulseaudio.service' for details.
[  OK  ] Started Simple Network Management Protocol (SNMP) Daemon..
         Starting PulseAudio Sound System...
[    7.551508] audit: type=1701 audit(1791789175.055:3): auid=4294967295 uid=990 gid=983 ses=4294967295 pid=503 comm="pulseaudio" exe="/usr/bin/pulseaudio" sig=11 res=1
[  OK  ] Started Process Core Dump (PID 504/UID 0).
[FAILED] Failed to start PulseAudio Sound System.
See 'systemctl status pulseaudio.service' for details.
         Starting PulseAudio Sound System...
[    8.101335] audit: type=1701 audit(1791789175.604:4): auid=4294967295 uid=990 gid=983 ses=4294967295 pid=524 comm="pulseaudio" exe="/usr/bin/pulseaudio" sig=6 res=1
[  OK  ] Started containerd container runtime.
[  OK  ] Started Process Core Dump (PID 529/UID 0).
[FAILED] Failed to start PulseAudio Sound System.
See 'systemctl status pulseaudio.service' for details.
         Starting PulseAudio Sound System...
[    8.856660] audit: type=1701 audit(1791789176.360:5): auid=4294967295 uid=990 gid=983 ses=4294967295 pid=741 comm="pulseaudio" exe="/usr/bin/pulseaudio" sig=11 res=1
[  OK  ] Started Process Core Dump (PID 778/UID 0).
***************************************************************
***************************************************************
NOTICE: This file system contains the following GPL-3.0 packages:
	adwaita-icon-theme-symbolic
	autoconf
	bash-dev
	bash
	bc
	binutils
	cifs-utils
	coreutils-stdbuf
	coreutils
	cpio
	cpp-symlinks
	cpp
	dosfstools
	elfutils-dev
	elfutils
	findutils
	g++-symlinks
	g++
	gawk
	gcc-symlinks
	gcc
	gdb
	gdbserver
	gettext
	glmark2
	gnu-config
	grub-common
	grub-editenv
	grub-efi
	gzip
	hidapi
	kbd-dev
	kbd-keymaps-pine
	less
	libasm1
	libatomic-dev
	libatomic1
	libbfd
	libdebuginfod1
	libdw1
	libelf1
	libgcc-s-dev
	libgcc1
	libgdbm-compat4
	libgdbm-dev
	libgdbm6
	libgettextlib
	libgettextsrc
	libgmp-dev
	libgmp10
	libgmpxx4
	libgnutls-dev
	libgnutls-openssl27
	libgomp1
	libidn2-0
	libidn2-dev
	libmpc3
	libmpfr6
	libopcodes
	libqt6core5compat-plugins
	libqt6core5compat-qmlplugins
	libqt6core5compat6
	libqt6shadertools-dev
	libqt6shadertools-plugins
	libqt6shadertools-qmlplugins
	libqt6shadertools6
	libreadline-dev
	libreadline8
	libstdc++-dev
	libstdc++6
	libtasn1-dev
	libunistring-dev
	libunistring5
	m4
	make
	nettle-dev
	nettle
	parted
	piglit
	qt3d-plugins
	qt3d-qmlplugins
	qt3d
	qtbase-dev
	qtbase-examples
	qtbase-plugins
	qtbase-qmlplugins
	qtbase-staticdev
	qtbase
	qtdeclarative-dev
	qtdeclarative-plugins
	qtdeclarative-qmlplugins
	qtdeclarative-staticdev
	qtdeclarative-tools
	qtdeclarative
	qtlanguageserver-dev
	qtlanguageserver-plugins
	qtlanguageserver-qmlplugins
	qtlanguageserver-staticdev
	qtlanguageserver
	qtmultimedia-plugins
	qtmultimedia-qmlplugins
	qtmultimedia
	qtquick3d-plugins
	qtquick3d-qmlplugins
	qtquick3d
	qtquicktimeline-plugins
	qtquicktimeline-qmlplugins
	qtquicktimeline
	qtsvg-dev
	qtsvg-plugins
	qtsvg-qmlplugins
	qtsvg
	qttools-plugins
	qttools-qmlplugins
	qttools
	qtwayland-dev
	qtwayland-plugins
	qtwayland-qmlplugins
	qtwayland
	tar
	which

If you do not wish to distribute GPL-3.0 components please remove
the above packages prior to distribution.  This can be done using
the opkg remove command.  i.e.:
    opkg remove <package>
Where <package> is the name printed in the list above

NOTE: If the package is a dependency of another package you
      will be notified of the dependent packages.  You should
      use the --force-removal-of-dependent-packages option to
      also remove the dependent packages as well
***************************************************************
***************************************************************
[FAILED] Failed to start PulseAudio Sound System.
See 'systemctl status pulseaudio.service' for details.
[  OK  ] Finished Print notice about GPLv3 packages.
         Starting PulseAudio Sound System...
[    9.540582] audit: type=1701 audit(1791789177.044:6): auid=4294967295 uid=990 gid=983 ses=4294967295 pid=911 comm="pulseaudio" exe="/usr/bin/pulseaudio" sig=6 res=1
[  OK  ] Started Process Core Dump (PID 912/UID 0).
[FAILED] Failed to start PulseAudio Sound System.
See 'systemctl status pulseaudio.service' for details.
[FAILED] Failed to start PulseAudio Sound System.
See 'systemctl status pulseaudio.service' for details.
[   11.045789] am65-cpsw-nuss 8000000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
         Starting Hostname Service...
[   12.261646] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to f300000.memory-controller
[   12.261673] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to 30040000.pruss
[   12.261680] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to 2b10000.audio-controller
[   12.261687] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to e0f0000.watchdog
[   12.261693] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to e030000.watchdog
[   12.261700] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to e020000.watchdog
[   12.261707] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to e010000.watchdog
[   12.261713] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to e000000.watchdog
[   12.261719] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to 30200000.dss
[   12.261727] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to fd00000.gpu
[   12.261744] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to 30300000.crc
[   12.261750] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to b00000.temperature-sensor
[   12.261757] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to bus@f0000:bus@b00000:r5fss@78000000
[   12.261764] ti_sci_pm_domains 44043000.system-controller:power-controller: sync_state() pending due to 2b1f0000.rtc
[   12.847725] audit: type=1006 audit(1791789180.351:7): pid=938 uid=0 old-auid=4294967295 auid=1000 tty=(none) old-ses=4294967295 ses=1 res=1
[   12.847755] audit: type=1300 audit(1791789180.351:7): arch=c00000b7 syscall=64 success=yes exit=4 a0=8 a1=fffff61f1fb8 a2=4 a3=1 items=0 ppid=1 pid=938 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=1 comm="(systemd)" exe="/usr/lib/systemd/systemd-executor" key=(null)
[   12.847766] audit: type=1327 audit(1791789180.351:7): proctitle="(systemd)"

 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_ 
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project am62xx-evm ttyS2

Arago 2025.01 am62xx-evm ttyS2

am62xx-evm login: root
[  148.836095] audit: type=1006 audit(1791789381.630:8): pid=1094 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=2 res=1
[  148.836125] audit: type=1300 audit(1791789381.630:8): arch=c00000b7 syscall=64 success=yes exit=1 a0=8 a1=ffffdafbb1c8 a2=1 a3=1 items=0 ppid=1 pid=1094 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=2 comm="(systemd)" exe="/usr/lib/systemd/systemd-executor" key=(null)
[  148.836137] audit: type=1327 audit(1791789381.630:8): proctitle="(systemd)"
root@am62xx-evm:~# 
root@am62xx-evm:~# dmesg |grep "clcok="
[    1.849485] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.877587] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.889747] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.891071] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.893784] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.898303] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.907596] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.920253] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    1.920446] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.920482] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.923185] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.950201] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.963817] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.965907] [SDHCI-KERNEL] clock=400000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.965942] [SDHCI-KERNEL] clock=52000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.966014] [SDHCI-KERNEL] clock=200000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
root@am62xx-evm:~#

There is 1.8V and 3.3V signal during UBOOT, defined in UBOOT include/mmc.h,

enum mmc_voltage {
    MMC_SIGNAL_VOLTAGE_000 = 0,
    MMC_SIGNAL_VOLTAGE_120 = 1,
    MMC_SIGNAL_VOLTAGE_180 = 2,
    MMC_SIGNAL_VOLTAGE_330 = 4,
};

There is clock=52MHz in tiboot3 stage:but ddr_mode=0. Why tiboot3 doesn't configure to HS200?

U-Boot SPL 2026.01-g5fb294342321-dirty (Oct 12 2026 - 14:44:48 +0800)
SYSFW ABI: 4.0 (firmware rev 0x000c '12.1.2--v12.01.02 (Clever Cat)')
Set clock rates for '/a53@0', CPU: 1250MHz at Speed Grade 'T'
SPL initial stack usage: 13440 bytes
Trying to boot from MMC1
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0, signal_voltage=0
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1, signal_voltage=0
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1, signal_voltage=0
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1, signal_voltage=0
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=0
[SDHCI] clock=52000000 Hz, ddr_mode=0, bus_width=8, signal_voltage=0
Authentication passed
Authentication passed
Authentication passed
Authentication passed
Authentication passed
Starting ATF on ARM64 core...

There is clock=52MHz in kernel stage with hs200 timing

root@am62xx-evm:~# dmesg |grep "clock="
[    1.849485] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.877587] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.889747] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=1, signal_voltage=0
[    1.891071] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.893784] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.898303] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.907596] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.920253] [SDHCI-KERNEL] clock=0 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=0, signal_voltage=0
[    1.920446] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.920482] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.923185] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=1, power_mode=2, signal_voltage=0
[    1.950201] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=0, bus_mode=2, power_mode=2, signal_voltage=0
[    1.963817] [SDHCI-KERNEL] clock=400000 Hz, timing=0, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.965907] [SDHCI-KERNEL] clock=400000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.965942] [SDHCI-KERNEL] clock=52000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1
[    1.966014] [SDHCI-KERNEL] clock=200000000 Hz, timing=9, bus_width=3, bus_mode=2, power_mode=2, signal_voltage=1

timing defined in kernel include/linux/mmc/host.h

	unsigned char	timing;			/* timing specification used */

#define MMC_TIMING_LEGACY	0
#define MMC_TIMING_MMC_HS	1
#define MMC_TIMING_SD_HS	2
#define MMC_TIMING_UHS_SDR12	3
#define MMC_TIMING_UHS_SDR25	4
#define MMC_TIMING_UHS_SDR50	5
#define MMC_TIMING_UHS_SDR104	6
#define MMC_TIMING_UHS_DDR50	7
#define MMC_TIMING_MMC_DDR52	8
#define MMC_TIMING_MMC_HS200	9
#define MMC_TIMING_MMC_HS400	10
#define MMC_TIMING_SD_EXP	11
#define MMC_TIMING_SD_EXP_1_2V	12
#define MMC_TIMING_UHS2_SPEED_A    13
#define MMC_TIMING_UHS2_SPEED_A_HD 14
#define MMC_TIMING_UHS2_SPEED_B    15
#define MMC_TIMING_UHS2_SPEED_B_HD 16

	unsigned char	signal_voltage;		/* signalling voltage (1.8V or 3.3V) */

#define MMC_SIGNAL_VOLTAGE_330	0
#define MMC_SIGNAL_VOLTAGE_180	1
#define MMC_SIGNAL_VOLTAGE_120	2

0 Tony Tang 2 days ago in reply to Tony Tang

TI__Mastermind 30787 points

eMMC_CLK change procedure summary:

	tiboot3	tispl	U-BOOT(1)	UBOOT(2)	Starting Kernel	Kernel
SDK9.2.1.9	400KHz->25MHz	400KHz->25MHz->200MHz	400KHz->25MHz->200MHz	400KHz->25MHz->200MHz	26MHz->52MHz DDR	400KHz->52MHz->200MHz	/cfs-file/__key/communityserver-discussions-components-files/791/7080.sdk9.2.1.9_2D00_emmc_2D00_remove_5F00_ddr50_5F00_cmd.log
SDK9.2.1.9	signal voltage =0	signal voltage=0->4->2	signal voltage=0->4->2	signal voltage=4->2	signal voltage=2	signal voltage=0->1
SDK12.01	400K-25MHz-25M-52MHz(SDR)	400KHz-25MHz-200MHz	400KHz-25MHz--200MHz ,	400KHz->25MHz->200MHz	N/A	400KHz->52MHz SDR-> 200MHz	/cfs-file/__key/communityserver-discussions-components-files/791/7080.sdk12.1_2D00_emmc_2D00_status_2D00_debug.log
SDK12.01	Signal voltage =0	signal voltage =0 ->4-> 2	Signal Voltage=0->4->2	signal voltage=4->2	N/A	signal voltage =0->1
Questions		signal voltage=4 means 3.3V, should be wrong		Why init to HS200 twice in UBOOT， There is cmd0 btween	Why init to 52MHz after starting kernel in SDK9.2, it still in UBOOT. There is not cmd0 to initiate

Although the 52MHz DDR mode stage can be changed to SDR mode, but this stage should be removed according to SDK12.01, it is not necessary as it is still in UBOOT, it is repeated initialization.

0 Prashant Shivhare 2 days ago in reply to Tony Tang

TI__Guru* 89401 points

Hello,

There is too much context in the query with multiple patches, logs. I observe discrepancies as well. Could you please state the first query you would like to have clarified?

Please note any logs with [SDHCI] and [SDHCI-KERNEL] must be from U-Boot and Kernel respectively at least according to the debug prints in the attached patches. Also, the TI specific queries here are the eMMC initialization by ROM and the DDR52 mode support on AM62x. Anything else is generic U-Boot or Linux MMC subsystem implementation.

0 Tony Tang 2 days ago in reply to Prashant Shivhare

TI__Mastermind 30787 points

Hello,

If I don't provide patch and log, just said the eMMC initialization procedure is wrong, I will be asked for evidence.

I have summarized observation and questions in upper table. if you need evidence, can look into log.

0 Prashant Shivhare 1 day ago in reply to Tony Tang

TI__Guru* 89401 points

These starting kernel logs in SDK v9.2 has SDHCI string which is not present in any of the attached kernel patches.

Starting kernel ...

[SDHCI] Send CMD6
[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] Send CMD8
[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[SDHCI] Send CMD6
[SDHCI] Send CMD13
[SDHCI] clock=26000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[SDHCI] Send CMD6
[SDHCI] Send CMD13
[SDHCI] Send CMD8
[SDHCI] clock=52000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[SDHCI] Send CMD8
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 6.1.80-dirty (tony@ubuntu22) (aarch64-oe-linux-gcc (GCC) 11.4.0, GNU ld (GNU Binutils) 2.38.20220708) #3 SMP PREEMPT Mon Oct 12 16:20:35 CST 2026

Why do you think these SDHCI logs are from Kernel?

0 Tony Tang 1 day ago in reply to Prashant Shivhare

TI__Mastermind 30787 points

I didn't say it from Kernel, I say it output after Starting kernel...It should still from UBOOT as it has SDHCI string, I don't know why it output here and configure to 52MHz from HS200. then UBOOT stage configured eMMC clock 3 times: 400K-25MHz-HS200, 400K-25MHz-HS200, 26MHz-52MHz. And there is not CMD0 between them, so it is not triggered by resetting eMMC and reconfiguration.

That is one of the question I need clarification. SDk12.1 hasn't the 3rd one.

0 Prashant Shivhare 1 day ago in reply to Tony Tang

TI__Guru* 89401 points

Tony Tang said:
then UBOOT stage configured eMMC clock 3 times: 400K-25MHz-HS200, 400K-25MHz-HS200, 26MHz-52MHz. And there is not CMD0 between them, so it is not triggered by resetting eMMC and reconfiguration.

The first two are just the result of the U-Boot commands run on autoboot to boot the Linux from MMC

=> printenv bootcmd
bootcmd=run envboot; run distro_bootcmd;
=> printenv envboot
envboot=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mmcdev}; if run loadbootscript; then run bootscript; else if run loadbootenv; then echo Loaded env from ${bootenvfile}; run importbootenv; fi; if test -n $uenvcmd; then echo Running uenvcmd ...; run uenvcmd; fi; fi; fi;

The "mmc dev" and "mmc rescan" will cause the MMC initialization.

As for the third, not sure exactly. Will have to check.

And I do see CMD0 command, in the shared logs, each time the eMMC initialization happens.

0 Prashant Shivhare 1 day ago in reply to Prashant Shivhare

TI__Guru* 89401 points

Prashant Shivhare said:
As for the third, not sure exactly. Will have to check.

These are the MMC driver deinitialization logs during device cleanup. These are not present in SDK v12.x because of the following commit (upstream) in 12.x

https://git.ti.com/cgit/ti-u-boot/ti-u-boot/commit/?id=d99f8d2d749c0e1b352766281f5f5d71fa845f76

0 Tony Tang 5 hours ago in reply to Prashant Shivhare

TI__Mastermind 30787 points

With this patch to SDK9.2.1.9 UBOOT, removed the third one.

diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c
index 01d9b020..adec0ffe 100644
--- a/drivers/mmc/mmc-uclass.c
+++ b/drivers/mmc/mmc-uclass.c
@@ -505,18 +505,20 @@ static int mmc_blk_probe(struct udevice *dev)
 	return 0;
 }
 
-#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
-    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
-    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
-static int mmc_blk_remove(struct udevice *dev)
+//#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
+//    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
+ //   CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
+//static int mmc_blk_remove(struct udevice *dev)
+static int mmc_remove(struct udevice *dev)
 {
 	struct udevice *mmc_dev = dev_get_parent(dev);
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
+	//struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
 	struct mmc *mmc = upriv->mmc;
 
 	return mmc_deinit(mmc);
 }
-#endif
+//#endif
 
 static const struct blk_ops mmc_blk_ops = {
 	.read	= mmc_bread,
@@ -532,12 +534,12 @@ U_BOOT_DRIVER(mmc_blk) = {
 	.id		= UCLASS_BLK,
 	.ops		= &mmc_blk_ops,
 	.probe		= mmc_blk_probe,
-#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
-    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
-    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
-	.remove		= mmc_blk_remove,
+//#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
+//    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
+//    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
+//	.remove		= mmc_blk_remove,
 	.flags		= DM_FLAG_OS_PREPARE,
-#endif
+//#endif
 };
 #endif /* CONFIG_BLK */
 
@@ -547,4 +549,5 @@ UCLASS_DRIVER(mmc) = {
 	.name		= "mmc",
 	.flags		= DM_UC_FLAG_SEQ_ALIAS,
 	.per_device_auto	= sizeof(struct mmc_uclass_priv),
+	.pre_remove	= mmc_remove,
 };
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index dde251c8..269682a9 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -2986,9 +2986,9 @@ int mmc_init(struct mmc *mmc)
 	return err;
 }
 
-#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
-    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
-    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
+//#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
+ //   CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
+//    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
 int mmc_deinit(struct mmc *mmc)
 {
 	u32 caps_filtered;
@@ -3010,7 +3010,7 @@ int mmc_deinit(struct mmc *mmc)
 		return mmc_select_mode_and_width(mmc, caps_filtered);
 	}
 }
-#endif
+//#endif
 
 int mmc_set_dsr(struct mmc *mmc, u16 val)
 {
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index c6b250b9..2f7e8e0d 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -207,6 +207,8 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
 			      struct mmc_data *data)
 {
 #endif
+	// add by Tony Tang print command
+	//printf("[SDHCI] Send CMD%d\n", cmd->cmdidx);
 	struct sdhci_host *host = mmc->priv;
 	unsigned int stat = 0;
 	int ret = 0;
@@ -646,6 +648,11 @@ static int sdhci_set_ios(struct mmc *mmc)
 	u32 ctrl;
 	struct sdhci_host *host = mmc->priv;
 	bool no_hispd_bit = false;
+    // ============ Print eMMC status, START Tony Tang============
+    printf("[SDHCI] clock=%d Hz, ddr_mode=%d, bus_width=%d,signal_voltage=%d\n",
+           mmc->clock, mmc->ddr_mode, mmc->bus_width, mmc->signal_voltage);
+    // ============ Print eMMC status END ============
+	
 
 	if (host->ops && host->ops->set_control_reg)

Further remove mmc rescan from envboot, get only once eMMC initialization in UBoot:

=> setenv envboot 'mmc dev ${mmcdev}; echo SD/MMC on device ${mmcdev}; if run loadbootscript; then run bootscript; else if run loadbootenv; then echo Loaded env from ${bootenvfile}; run importbootenv; fi; if test -n $uenvcmd; then echo Running uenvcmd ...; run uenvcmd; fi; fi;'
=>
=> printenv envboot
envboot=mmc dev ${mmcdev}; echo SD/MMC on device ${mmcdev}; if run loadbootscript; then run bootscript; else if run loadbootenv; then echo Loaded env from ${bootenvfile}; run importbootenv; fi; if test -n $uenvcmd; then echo Running uenvcmd ...; run uenvcmd; fi; fi;
=>
=> run envboot
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0,signal_voltage=0
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=0,signal_voltage=4
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1,signal_voltage=4
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1,signal_voltage=4
[SDHCI] Send CMD0
[SDHCI] Send CMD8
[SDHCI] Send CMD55
[SDHCI] Send CMD0
[SDHCI] Send CMD1
[SDHCI] Send CMD1
[SDHCI] Send CMD1
[SDHCI] Send CMD2
[SDHCI] Send CMD3
[SDHCI] Send CMD9
[SDHCI] Send CMD7
[SDHCI] Send CMD8
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1,signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1,signal_voltage=2
[SDHCI] Send CMD6
[SDHCI] Send CMD13
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] Send CMD6
[SDHCI] Send CMD13
[SDHCI] clock=200000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD8
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
switch to partitions #0, OK
mmc0(part 0) is current device
SD/MMC on device 0
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
Failed to load 'boot.scr'
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
Can't set block device

=> boot
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=8,signal_voltage=4
[SDHCI] clock=0 Hz, ddr_mode=0, bus_width=1,signal_voltage=4
[SDHCI] clock=400000 Hz, ddr_mode=0, bus_width=1,signal_voltage=4
[SDHCI] Send CMD0
[SDHCI] Send CMD8
[SDHCI] Send CMD55
[SDHCI] Send CMD0
[SDHCI] Send CMD1
[SDHCI] Send CMD1
[SDHCI] Send CMD1
[SDHCI] Send CMD2
[SDHCI] Send CMD3
[SDHCI] Send CMD9
[SDHCI] Send CMD7
[SDHCI] Send CMD8
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1,signal_voltage=4
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=1,signal_voltage=2
[SDHCI] Send CMD6
[SDHCI] Send CMD13
[SDHCI] clock=25000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] Send CMD6
[SDHCI] Send CMD13
[SDHCI] clock=200000000 Hz, ddr_mode=0, bus_width=8,signal_voltage=2
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD21
[SDHCI] Send CMD8
switch to partitions #0, OK
mmc0(part 0) is current device
SD/MMC on device 0
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
Failed to load 'boot.scr'
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
Can't set block device
[SDHCI] Send CMD16
[SDHCI] Send CMD17
## Error: "main_cpsw0_qsgmii_phyinit" not defined
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
19376640 bytes read in 152 ms (121.6 MiB/s)
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD17
[SDHCI] Send CMD16
[SDHCI] Send CMD18
[SDHCI] Send CMD12
[SDHCI] Send CMD16
[SDHCI] Send CMD17
59546 bytes read in 58 ms (1002 KiB/s)
Working FDT set to 88000000
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
Working FDT set to 88000000
   Loading Device Tree to 000000008feee000, end 000000008fffffff ... OK
Working FDT set to 8feee000

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 6.1.80-dirty (tony@ubuntu22) (aarch64-oe-linux-gcc (GCC) 11.4.0, GNU ld (GNU Binutils) 2.38.20220708) #3 SMP PREEMPT Mon Oct 12 16:20:35 CST 2026
[    0.000000] Machine model: Texas Instruments AM625 SK
[    0.000000] earlycon: ns16550a0 at MMIO32 0x0000000002800000 (options '')
[    0.000000] printk: bootconsole [ns16550a0] enabled
[    0.000000] efi: UEFI not found.

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AM625: eMMC clock frequency changing during startup