2017-01-03 13:16 GMT+02:00 Lokesh Vutla lokeshvutla@ti.com:
Would anyone have idea why spl boot fails in i2c_probe when running from nand but not when running from mmc card or anything at all to check?
Do you have different mux configurations for different boot modes?(Just wondering if mux is properly configured for i2c in nand boot)
No, not that I know and can detect from the board file. In fact it looks
like mmc boot has the correct configuration.
My card is am335x based board with u-boot coming from u-boot-it v2016.05.
Can you specify the tree? Also which config are you using and what board it it?
I have been using youcto/poky build system with meta-ti layer that brings up u-boot-ti-staging. I have patched board/ti/am335x/board.c and mux.c. I have used am335x_evm config that I have had to patch somewhat to suit my board. Board resembles somewhat am335x_evm but it does not have configuration eeprom, has different ddr3 chips. Also, it has different PMIC (same as beaglebone). Therefore I need to patch guite a lot. One reason why I2C configuration is wrong in nand mode could be the fact that I have CONFIG_TI_I2C_BOARD_DETECT variable is undefined (because I do not have that eeprom). But it looks that do_board_detect runs enable_i2c0_pin_mux() that I do not run separately. On the other hand, that does not explain why mmc boot works.
Thanks and regards, Lokesh