Dear Huber, I think so. DTB is modified by U-Boot. I don't know the reason right now. I am checking u-boot source.
But, Because clock-frequency variable of timer is disappeared in lastest Linux kernel, you need to review arm_generic_timer_get_config() in bspstart.c I checked "dtc command on Linux" and "fdt command on u-boot" < dtc command on Linux > cpu@0 { compatible = "arm,cortex-a7"; device_type = "cpu"; reg = <0x0>; clock-frequency = <0x3b5dc100>; clock-latency = <0xee6c>; clocks = <0x1 0x1b5>; operating-points = <0xf32a0 0x106738 0xc15c0 0xee098>; phandle = <0x3>; }; < fdt command on u-boot > cpu@0 { compatible = "arm,cortex-a7"; device_type = "cpu"; reg = <0x00000000>; clock-frequency = ";]¬; clock-latency = <0x0000ee6c>; clocks = <0x00000001 0x000001b5>; operating-points = <0x000f32a0 0x00106738 0x000c15c0 0x000ee098>; phandle = <0x00000003>; }; Also, I am checking bsp/arm/imx/include/bsp.h At this time, below definition is zero. #define BSP_ARM_A9MPCORE_GT_BASE 0 #define BSP_ARM_A9MPCORE_SCU_BASE 0 Is there any reason which this definition is zero ? Best Regards, JunBeom -----Original Message----- From: Sebastian Huber <sebastian.hu...@embedded-brains.de> Sent: Tuesday, April 10, 2018 10:51 PM To: JunBeom Kim (EmbedCoreTech) <jb...@e-coretech.kr>; users@rtems.org Subject: Re: RTEMS booting problem for PICO-PI-IMX7 board. On 10/04/18 15:44, JunBeom Kim (EmbedCoreTech) wrote: > At this time, I am checking Linux kernel's DTS building again. The DTB is modified by U-Boot before it is handed over to the system to start. See the U-Boot sources for the details. -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users