[RK3568 Android11.0]RK3568设备异常解决

正常设备打印如下

U-Boot 2017.09 (Dec 20 2021 - 10:40:11  0800)  Model: Rockchip RK3568 Evaluation Board PreSerial: 2, raw, 0xfe660000 DRAM:  2 GiB Sysmem: init Relocation Offset: 7d357000, fdt: 7b9f8518 Using default environment  dwmmc@fe2b0000: 1, dwmmc@fe2c0000: 2, sdhci@fe310000: 0 Bootdev(atags): mmc 0 MMC0: HS200, 200Mhz PartType: EFI boot mode: recovery (misc) FIT: No fdt blob boot mode: None Android 11.0, Build 2021.6, v2 Found DTB in boot part DTB: rk-kernel.dtb HASH(c): OK ANDROID: fdt overlay OK I2c0 speed: 100000Hz vsel-gpios- not found! Error: -2 vdd_cpu init 900000 uV PMIC:  RK8090 (on=0x40, off=0x00) vdd_logic init 900000 uV vdd_gpu init 900000 uV vdd_npu init 900000 uV io-domain: OK Model: Rockchip RK3568 EVB1 DDR4 V10 Board Rockchip UBOOT DRM driver version: v1.0.1 

异常打印如下

U-Boot 2017.09 (Dec 17 2021 - 1506:46 +0800) Model: Rockchip RK3568 Evaluation Board PreSerial: 2, raw, 0xfe660000 DRAM: 2 GiB Sysmem: init Relocation Offset: 7d357000, fdt: 7b9f8518 Using default environment dwmmc@fe2b0000: 1, dwmmc@fe2c0000: 2, sdhci@fe310000: 0 Bootdev(atags): mmc 0 MMC0: HS200, 200Mhz PartType: EFI boot mode: recovery (misc) FIT: No fdt blob boot mode: recovery (misc) Android 11.0, Build 2021.6, v2 Found DTB in recovery part DTB: rk-kernel.dtb HASH(c): OK ANDROID: fdt overlay OK I2c0 speed: 100000Hz vsel-gpios- not found! Error: -2 vdd_cpu init 900000 uV rk8xx_read: read reg 0xed failed, ret=-121 rk8xx_read: read reg 0xed failed, ret=-121 of_get_regulator: Get (pmuio2-supply) regulator: /i2c@fdd40000/pmic@20/regulators/LDO_REG6 failed, ret=-121 rk8xx_read: read reg 0xed failed, ret=-121 of_get_regulator: Get (vccio1-supply) regulator: /i2c@fdd40000/pmic@20/regulators/LDO_REG4 failed, ret=-121 rk8xx_read: read reg 0xed failed, ret=-121 of_get_regulator: Get (vccio3-supply) regulator: /i2c@fdd40000/pmic@20/regulators/LDO_REG5 failed, ret=-121 rk8xx_read: read reg 0xed failed, ret=-121 of_get_regulator: Get (vccio4-supply) regulator: /i2c@fdd40000/pmic@20/regulators/DCDC_REG5 failed, ret=-121 io-domain: OK Model: Rockchip RK3568 EVB1 DDR4 V10 Board rk8xx_read: read reg 0xed failed, ret=-121 rk8xx_read: read reg 0xed failed, ret=-121 

解决：与rk809通信的I2C 的电压不够 抬高后正常

打印如下

[   21.193339] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[   21.193362] rcu:     1-...0: (1 GPs behind) idle=292/1/0x4000000000000000 softirq=32/33 fqs=2077
[   21.193368] rcu:     (detected by 2, t=6302 jiffies, g=-1163, q=963)
[   21.193378] Task dump for CPU 1:
[   21.193384] rk-pcie         R  running task        0    55      2 0x0000002a
[   21.193393] Call trace:
[   21.193408]  __switch_to+0x130/0x13c
[   21.193415]            (null)
[   21.203337] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[   21.203356] rcu:     1-...0: (40 ticks this GP) idle=292/1/0x4000000000000000 softirq=8/33 fqs=2077
[   21.203363] rcu:     (detected by 2, t=6302 jiffies, g=-1183, q=3)
[   21.203371] Task dump for CPU 1:
[   21.203377] rk-pcie         R  running task        0    55      2 0x0000002a
[   21.203384] Call trace:
[   21.203392]  __switch_to+0x130/0x13c
[   21.203398]            (null)
[   28.013338] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1]
[   28.013355] Modules linked in:
[   28.013368] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.172 #72
[   28.013374] Hardware name: Rockchip RK3568 EVB1 DDR4 V10 Board (DT)

打印如下

[    2.747699] rk3x-i2c fdd40000.i2c: timeout, ipd: 0x1b, state: 1
[    2.747730] rk808 0-0020: failed to read the chip id at 0x17
[    2.747868] rk808: probe of 0-0020 failed with error -110

rk808 i2c电压太低