Here is console log for my system. Not dmesg. You need an FTDI TTL3V3 to USB connected to the 5 pin header to see this. Note lines highlighted in red showing that the SPI overlay loaded.
U-Boot SPL 2017.09-rc2-00002-g7c9353e752 (Aug 31 2017 - 09:25:14)
Trying to boot from MMC2
U-Boot 2017.09-rc2-00002-g7c9353e752 (Aug 31 2017 - 09:25:14 -0500), Build: jenkins-github_Bootloader-Builder-596
CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
No match for driver ‘omap_hsmmc’
No match for driver ‘omap_hsmmc’
Some drivers were not found
Reset Source: Global warm SW reset has occurred.
Reset Source: Power-on reset has occurred.
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment
Board: BeagleBone Black
not set. Validating first E-fuse MAC
BeagleBone Black:
BeagleBone: cape eeprom: i2c_probe: 0x54:
BeagleBone: cape eeprom: i2c_probe: 0x55:
BeagleBone: cape eeprom: i2c_probe: 0x56:
BeagleBone: cape eeprom: i2c_probe: 0x57:
Net: eth0: MII MODE
Could not get PHY for cpsw: addr 0
cpsw
Press SPACE to abort autoboot in 2 seconds
board_name=[A335BNLT] …
board_rev=[BBNR] …
Card did not respond to voltage select!
mmc_init: -95, time 12
Card did not respond to voltage select!
mmc_init: -95, time 13
Card did not respond to voltage select!
mmc_init: -95, time 13
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
Card did not respond to voltage select!
mmc_init: -95, time 12
Card did not respond to voltage select!
mmc_init: -95, time 12
switch to partitions #0, OK
mmc1(part 0) is current device
Scanning mmc 1:1…
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
switch to partitions #0, OK
mmc1(part 0) is current device
gpio: pin 54 (gpio 54) value is 1
Checking for: /uEnv.txt …
Checking for: /boot.scr …
Checking for: /boot/boot.scr …
Checking for: /boot/uEnv.txt …
gpio: pin 55 (gpio 55) value is 1
2102 bytes read in 17 ms (120.1 KiB/s)
Loaded environment from /boot/uEnv.txt
debug: [dtb=osd3358-bsm-refdesign.dtb] …
Using: dtb=osd3358-bsm-refdesign.dtb …
Checking if uname_r is set in /boot/uEnv.txt…
gpio: pin 56 (gpio 56) value is 1
Running uname_boot …
loading /boot/vmlinuz-4.9.45-ti-r57 …
9464664 bytes read in 620 ms (14.6 MiB/s)
uboot_overlays: dtb=osd3358-bsm-refdesign.dtb in /boot/uEnv.txt, unable to use [uboot_base_dtb=am335x-boneblack-uboot.dtb] …
loading /boot/dtbs/4.9.45-ti-r57/osd3358-bsm-refdesign.dtb …
64053 bytes read in 126 ms (496.1 KiB/s)
uboot_overlays: [fdt_buffer=0x60000] …
uboot_overlays: loading /lib/firmware/AM335X-20-00A0.dtbo …
378 bytes read in 807 ms (0 Bytes/s)
uboot_overlays: loading /lib/firmware/BB-SPIDEV1-00A0.dtbo …
1523 bytes read in 382 ms (2.9 KiB/s)
uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo …
1440 bytes read in 746 ms (1000 Bytes/s)
uboot_overlays: uboot loading of [/lib/firmware/BB-HDMI-TDA998x-00A0.dtbo] disabled by /boot/uEnv.txt [disable_uboot_overlay_video=1]…
uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo …
711 bytes read in 362 ms (1000 Bytes/s)
uboot_overlays: loading /lib/firmware/AM335X-PRU-UIO-00A0.dtbo …
883 bytes read in 169 ms (4.9 KiB/s)
uboot_overlays: cape universal disabled, external cape enabled or detected…
loading /boot/initrd.img-4.9.45-ti-r57 …
6154201 bytes read in 407 ms (14.4 MiB/s)
debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet] …
debug: [bootz 0x82000000 0x88080000:5de7d9 88000000] …
Flattened Device Tree blob at 88000000
Booting using the fdt blob at 0x88000000
Loading Ramdisk to 8fa21000, end 8ffff7d9 … OK
reserving fdt memory region: addr=88000000 size=70000
Loading Device Tree to 8f9ae000, end 8fa20fff … OK
Starting kernel …
[ 0.001156] clocksource_probe: no matching clocksources found
[ 2.307503] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[ 2.440981] cpu cpu0: “ti,syscon-efuse” is missing, cannot use OPPv2 table.
[ 2.531883] ti_emif_sram 4c000000.emif: Unable to get sram pool for ocmcram data
[ 2.549968] omap_voltage_late_init: Voltage driver support not added
[ 2.559195] PM: Cannot get wkup_m3_ipc handle
[ 2.811784] bone_capemgr bone_capemgr: slot #0: auto loading handled by U-Boot
[ 2.819219] bone_capemgr bone_capemgr: slot #1: auto loading handled by U-Boot
[ 2.826815] bone_capemgr bone_capemgr: slot #2: auto loading handled by U-Boot
[ 2.834184] bone_capemgr bone_capemgr: slot #3: auto loading handled by U-Boot
rootfs: clean, 124733/962880 files, 897291/3846144 blocks
Debian GNU/Linux 9 beaglebone ttyS0
BeagleBoard.org Debian Image 2017-08-31
Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
default username:password is [debian:temppwd]
beaglebone login: [ 23.246254] pinctrl-single 44e10800.pinmux: pin PIN100 already requested by 48038000.mcasp; cannot claim for 481a0000.spi
[ 23.955982] pinctrl-single 44e10800.pinmux: pin-100 (481a0000.spi) status -22
[ 24.279949] pinctrl-single 44e10800.pinmux: could not request pin 100 (PIN100) from group pinmux_bb_spi1_pins on device pinctrl-single
[ 24.867834] omap2_mcspi 481a0000.spi: Error applying setting, reverse things back
Here is my uEnv
ebian@beaglebone:~$ cat /boot/uEnv.txt
#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0
uname_r=4.9.45-ti-r57
#uuid=
dtb=osd3358-bsm-refdesign.dtb
#dtb=osd335x-lesson2-tfp.dtb
###U-Boot Overlays###
###Documentation: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
###Master Enable
enable_uboot_overlays=1
