On Thursday, November 12, 2015 at 03:33:42 AM, Chin Liang See wrote:
[...]
I just noticed, that here the L2 cache gets disabled and is not enabled again in function v7_outer_cache_enable(). This looks a bit suspicious.
Dinh, did you perhaps miss to re-enable the L2 cache after the aux_ctrl register setup again?
I guess we should pester Dinh now :-)
I recompiled the latest source and it works for me. Here is the printout message. Wonder any modification against commit a55f28624e97e1e43ac?
U-Boot 2015.10-08073-ga55f286 (Nov 11 2015 - 23:19:06 +0800)
CPU: Altera SoCFPGA Platform FPGA: Altera Cyclone V, SE/A6 or SX/C6 or ST/D6, version 0x0 BOOT: SD/MMC External Transceiver (1.8V)
Watchdog enabledI2C: ready DRAM: 1 GiB MMC: SOCFPGA DWMMC: 0 *** Warning - bad CRC, using default environment
In: serial Out: serial Err: serial Model: Altera SOCFPGA Cyclone V SoC Development Kit Net: Error: ethernet@ff702000 address not set. No ethernet found. Hit any key to stop autoboot: 0 => dcache Data (writethrough) Cache is ON => icache Instruction Cache is ON => usb start starting USB... USB0: Core Release: 2.93a scanning bus 0 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found=> usb info 1: Hub, USB Revision 1.10
U-Boot Root Hub
Class: Hub
PacketSize: 8 Configurations: 1
Vendor: 0x0000 Product 0x0000 Version 0.0
Configuration: 1
Interfaces: 1 Self Powered 0mA
Interface: 0
- Alternate Setting 0, Endpoints: 1
- Class Hub
- Endpoint 1 In Interrupt MaxPacket 2 Interval 255ms
2: Mass Storage, USB Revision 2.0
SanDisk SDDR-113 000000009412
Class: (from Interface) Mass Storage
PacketSize: 64 Configurations: 1
Vendor: 0x0781 Product 0xa7c1 Version 148.18
Configuration: 1
Interfaces: 1 Bus Powered 500mA
Interface: 0
- Alternate Setting 0, Endpoints: 2
- Class Mass Storage, Transp. SCSI, Bulk only
- Endpoint 1 In Bulk MaxPacket 512
- Endpoint 2 Out Bulk MaxPacket 512
Yeah, that's because you're using high-quality USB sticks which leave skid marks on the USB port. Now try with some dirt cheap USB 2.0 stick.
058f:6387 Alcor Micro Corp. Flash Drive
The thing above is my absolute fav when it comes to testing corner cases: http://www.intenso.de/produkte.php?kategorie=23&&produkt=1255723475
Hi!
It takes some amount of time for digging out a USB 2.0 stick :)
Well sorry about living in a developing country ;-)
But it still work for me as below. Let me check out the code and see any clue.
2: Mass Storage, USB Revision 2.0
USB DISK 2.0 0781076602A6- Class: (from Interface) Mass Storage
- PacketSize: 64 Configurations: 1
- Vendor: 0x13fe Product 0x1e00 Version 1.16 Configuration: 1
- Interfaces: 1 Bus Powered 200mA Interface: 0
- Alternate Setting 0, Endpoints: 2
- Class Mass Storage, Transp. SCSI, Bulk only
- Endpoint 1 In Bulk MaxPacket 512
- Endpoint 2 Out Bulk MaxPacket 512
Fascinating. Could it be that it's only these really crappy USB sticks which trigger some odd condition in the controller ? I will dig out the trusty SoCDK and check it there this week.
btw. these Alcor sticks work for me in Linux 3.18.x, but seems like that's not always the case: http://comments.gmane.org/gmane.linux.usb.general/86117