jeff angielski wrote:
Despite the SVR being the same (0x803c0011), the latest u-boot is misidentifying the CPU when compared against the original 1.3.0 u-boot. The CPU is a 8544E but u-boot is reporting 8533E.
The wierd part of this is that according to the Chip Errata for the MPC8544E, the SVR *should* be 0x803c01xx - which is different than both the 1.3 and latest git version are reading.
Can any of the Freescale guys explain this discrepancy between the manual, the Freescale BSP u-boot, and the latest u-boot?
Using the u-boot that is built with the LTIB and ships with the MPC8544DS board:
U-Boot 1.3.0-rc3 (Mar 28 2008 - 11:13:50)
CPU: 8544_E, Version: 1.1, (0x803c0011) Core: E500, Version: 2.2, (0x80210022) Clock Configuration: CPU: 999 MHz, CCB: 399 MHz, DDR: 199 MHz, LBC: 24 MHz L1: D-cache 32 kB enabled I-cache 32 kB enabled
Using the latest u-boot:
U-Boot 2009.03-rc1-00031-gd82fd0f-dirty (Mar 03 2009 - 13:09:00)
CPU: 8533E, Version: 1.1, (0x803c0011) Core: E500, Version: 2.2, (0x80210022) Clock Configuration: CPU0:1000 MHz, CCB:400 MHz, DDR:200 MHz (400 MT/s data rate), LBC:25 MHz L1: D-cache 32 kB enabled I-cache 32 kB enabled Board: MPC8544DS, System ID: 0x12, System Version: 0x20, FPGA Version: 0x31
I found that U-boot 2009 does much more detailed checking regarding the CPU IDs. But also found discrepancies in the CPU reporting while running U-boot 2009 using the BDI 2000. With the BDI2000 my CPU was detected as 8547E and with a standalone boot, U-Boot got 8548E.
See if the CPU is detected incorrectly while booting stand alone. cheers pieter