IMX6Q-CustomBoard- PMIC Issue while sdcard flash

laulavanya — Mon, 03 Jan 2022 16:57:37 GMT

Hi NXP ,

Custom board is reference of sabresd quad processor .

Changes from sabresd board to custom board is PMIC,DDR,UART,USDHC etc . We have handled all the changes but still Facing PMIC issue .i.e
"

U-Boot 2018.03-dirty (Jan 03 2022 - 15:41:04 +0530)

CPU: Freescale i.MX6Q rev1.3 at 792MHz
CPU: Industrial temperature grade (-40C to 105C) at 21C
Reset cause: POR
Model: Freescale i.MX6 Quad SABRE Smart Device Board
Board: MX6-CustomBoardName
DRAM: 2 GiB
i2c_idle_bus: failed to clear bus, sda=1 scl=0
PMIC: PFUZE100! DEV_ID=0xffffffda REV_ID=0xffffffda
initcall sequence 8ffa539c failed at call 17804afc (err=-19)
### ERROR ### Please RESET the board ###

The following voltages are different from the reference Sabre SDB board and are set in the file /uboot-imx/board/freescale/mx6qcustomboard/mx6qcustomboard.c:

• SW2 is set to 3.3V • SW4 is set to 1.975V • VGEN5 is set to 2.8V • VGEN6 is set to 3.3V

/* Set SW4 to 1.975V - Address of SW4VOLT is 0x4A */

reg = pmic_reg_read(dev,0x4A);

reg &= ~0x3F;

reg |= 0x3F;

pmic_reg_write(dev,0x4A,reg);

/* SW4 setup done */

reg = pmic_reg_read(dev, 0x35);

reg &= ~0x3F;

reg |= 0x32;

pmic_reg_write(dev,0x35,reg);

reg = pmic_reg_read(dev, 0x70);

reg &= ~0xf;

reg |= 0xa;

pmic_reg_write(dev,0x70, reg);

/*increase VGEN3 from 2.5 to 2.8V*/

reg = pmic_reg_read(dev, 0x6e);

reg &= ~0xF;

reg |= 0xA;

pmic_reg_write(dev, 0x6e,reg);

/* VGEN3 setup done */

Let me know other than mx6qcustomboard.c Is there any other place I need to handle?

Re: IMX6Q-CustomBoard- PMIC Issue while sdcard flash

igorpadykov — Mon, 03 Jan 2022 23:16:36 GMT

Hi Lavanya

>Let me know other than mx6qcustomboard.c Is there any other place I need to handle?

from log issue may be related to i2c interface, so one can check it with oscilloscope.

Also may be recommended to check pmic connections using Chapter 4
Requirements for Power Management IMX6DQ6SDLHDG, Hardware Development Guide for i.MX 6Quad, 6Dual, 6DualLite, 6Solo Families of Applications Processors

Best regards
igor

i.MX Processors中的主题 IMX6Q-CustomBoard- PMIC Issue while sdcard flash

IMX6Q-CustomBoard- PMIC Issue while sdcard flash

Re: IMX6Q-CustomBoard- PMIC Issue while sdcard flash