Hello all,
basically, my system confuses mmc0 and mmc3, details are below.
I’m testing secondary sd card slot on a custom carrier board for Xavier NX. I use Xavier NX devkit (that is, the one with builtin sd card) for this purpose. I enabled sdhci@3440000 sd slot in the device tree using the information I found on this forum, and when booting, the system for some reason expects the OS to be on it rather than mmcblk0. If there is no card in sdhci@3440000, the boot process will stop, as shown below:
[ 7.217473] mmcblk mmc1:aaaa: Card claimed for testing.
[ 7.253455] bpmp: mounted debugfs mirror
[ 7.260175] ALSA device list:
[ 7.260276] #0: tegra-hda-xnx at 0x3518000 irq 65
[ 7.260385] #1: jetson-xaviernx-ape
[ 7.262451] Freeing unused kernel memory: 8640K
[ 7.302782] Root device found: mmcblk0p1
[ 17.527134] ERROR: mmcblk0p1 not found
If I insert an sd card into sdhci@3440000 at this time, I will get:
[ 17.409661] ERROR: mmcblk0p1 not found
[ 17.560765] extcon-gpio-states external-connection:extcon@1: Cable state:0, cable id:0
[ 17.560952] tegra-xudc-new 3550000.xudc: vbus state: 0
[ 17.561042] tegra-xudc-new 3550000.xudc: device mode off: 0
[ 17.561168] tegra-xudc-new 3550000.xudc: active: 1 => 0
[ 17.561260] tegra-xudc-new 3550000.xudc: entering ELPG
[ 17.561644] tegra-xudc-new 3550000.xudc: entering ELPG done
[ 20.808720] extcon-gpio-states external-connection:extcon@1: Cable state:1, cable id:1
[ 20.808909] tegra-xudc-new 3550000.xudc: vbus state: 1
[ 20.809009] tegra-xudc-new 3550000.xudc: exiting ELPG
[ 20.809754] tegra-xudc-new 3550000.xudc: exiting ELPG done
[ 20.809853] tegra-xudc-new 3550000.xudc: device mode on: 0
[ 20.809951] tegra-xudc-new 3550000.xudc: active: 0 => 1
[ 38.244853] vdd-sdmmc3-sw: disabling
[ 38.244956] vdd-1v8-sd: disabling
[ 38.245018] vdd-1v8-cvb: disabling
[ 38.245094] vdd-epb-1v0: disabling
[ 38.245152] avdd-cam-2v8: disabling
[ 38.245217] vdd-fan: disabling
[ 38.245273] vdd_sys_en: disabling
[ 47.670753] mmc0: Enabling vmmc regulator
[ 47.993771] mmc0: host does not support reading read-only switch, assuming write-enable
[ 48.137125] mmc0: hw tuning done ...
[ 48.137260] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
[ 48.137811] mmcblk0: mmc0:aaaa SR128 119 GiB
[ 48.146213] mmcblk0: p1
[ 67.676724] extcon-gpio-states external-connection:extcon@1: Cable state:1, cable id:1
[ 70.387504] mmc0: Disabling vmmc regulator
[ 70.387708] mmc0: card aaaa removed
[ 72.912076] mmc0: Enabling vmmc regulator
[ 73.213708] mmc0: host does not support reading read-only switch, assuming write-enable
[ 73.355924] mmc0: hw tuning done ...
[ 73.356037] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
[ 73.356549] mmcblk0: mmc0:aaaa SR128 119 GiB
[ 73.365241] mmcblk0: p1
[ 78.870067] mmc0: Disabling vmmc regulator
[ 78.870267] mmc0: card aaaa removed
[ 79.376752] extcon-gpio-states external-connection:extcon@1: Cable state:1, cable id:1
[ 80.148761] extcon-gpio-states external-connection:extcon@1: Cable state:0, cable id:0
[ 80.148922] tegra-xudc-new 3550000.xudc: vbus state: 0
[ 80.149016] tegra-xudc-new 3550000.xudc: device mode off: 0
[ 80.149141] tegra-xudc-new 3550000.xudc: active: 1 => 0
[ 80.149232] tegra-xudc-new 3550000.xudc: entering ELPG
[ 80.149591] tegra-xudc-new 3550000.xudc: entering ELPG done
[ 81.080722] extcon-gpio-states external-connection:extcon@1: Cable state:1, cable id:1
[ 81.080916] tegra-xudc-new 3550000.xudc: vbus state: 1
[ 81.081012] tegra-xudc-new 3550000.xudc: exiting ELPG
[ 81.081740] tegra-xudc-new 3550000.xudc: exiting ELPG done
[ 81.081842] tegra-xudc-new 3550000.xudc: device mode on: 0
[ 81.081942] tegra-xudc-new 3550000.xudc: active: 0 => 1
[ 173.284933] random: crng init done
For reference below, a bootlog fragment when two cards, each with OS (with different host names and logins for differentiation). Note that expected host name is “nx” instead of “ubuntu”.
[ 7.265596] tegra_rtc c2a0000.rtc: setting system clock to 2000-01-01 01:00:19 UTC (946688419)
[ 7.266354] mmcblk mmc0:0001: Card claimed for testing.
[ 7.266486] mmcblk mmc1:aaaa: Card claimed for testing.
[ 7.305340] bpmp: mounted debugfs mirror
[ 7.312112] ALSA device list:
[ 7.312211] #0: tegra-hda-xnx at 0x3518000 irq 65
[ 7.312313] #1: jetson-xaviernx-ape
[ 7.314557] Freeing unused kernel memory: 8640K
[ 7.356579] Root device found: mmcblk0p1
[ 7.358549] Found dev node: /dev/mmcblk0p1
[ 7.400412] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[ 7.403212] Rootfs mounted over mmcblk0p1
[ 7.432425] Switching from initrd to actual rootfs
[ 7.669694] systemd[1]: System time before build time, advancing clock.
[ 7.704913] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 7.710997] cgroup: cgroup2: unknown option "nsdelegate"
[ 7.729115] systemd[1]: systemd 237 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[ 7.730188] systemd[1]: Detected architecture arm64.
[ 7.741039] systemd[1]: Set hostname to <ubuntu>.
[ 7.881254] systemd[1]: File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
[ 7.881586] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[ 8.098375] random: systemd: uninitialized urandom read (16 bytes read)
[ 8.101607] systemd[1]: Created slice User and Session Slice.
[ 8.102164] random: systemd: uninitialized urandom read (16 bytes read)
[ 8.103473] systemd[1]: Created slice System Slice.
[ 8.103882] random: systemd: uninitialized urandom read (16 bytes read)
[ 8.104285] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 8.104910] systemd[1]: Listening on Journal Socket.
[ 8.110280] systemd[1]: Starting Load Kernel Modules...
[ 8.202086] EXT4-fs (mmcblk0p1): re-mounted. Opts: (null)
[ 8.240804] nvgpu: 17000000.gv11b nvgpu_nvhost_syncpt_init:291 [INFO] syncpt_unit_base 60000000 syncpt_unit_size 400000 size 1000
[ 8.240804]
��WARNING: at platform/drivers/pg/pg-gpu-t194.c:185
WARNING: at platform/drivers/pg/pg-gpu-t194.c:185
��[ 9.360721] random: crng init done
[ 9.360851] random: 7 urandom warning(s) missed due to ratelimiting
[ 9.416825] using random self ethernet address
[ 9.416963] using random host ethernet address
[ 10.608119] using random self ethernet address
[ 10.608263] using random host ethernet address
[ 13.177053] CPU4: shutdown
[ 13.242287] CPU5: shutdown
[ 17.795974] Bridge firewalling registered
Ubuntu 18.04.6 LTS ubuntu ttyTCU0
ubuntu login:
I tried adding id = <devnode_number> field to the sdmmc nodes but it did not help.
How can I hard code device number into devnode name?
Full boot log in the attachment.
boot.log (82.4 KB)
My mmc3 dts settings for reference:
sdhci@3440000 {
mmc-ocr-mask = <0x0>;
cd-gpios = <&tegra_aon_gpio TEGRA194_AON_GPIO(CC, 1) 0>;
nvidia,cd-wakeup-capable;
mmc-ocr-mask = <0>;
cd-inverted;
vmmc-supply = <&p3668_vdd_sdmmc3_sw>;
status = "okay";
};
Power supply:
p3668_vdd_sdmmc3_sw: regulator@103 {
compatible = "regulator-fixed";
reg = <103>;
regulator-name = "vdd-sdmmc3-sw";
gpio = <&tegra_aon_gpio TEGRA194_AON_GPIO(CC, 2) 0>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
enable-active-high;
};