mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
73 lines
2.1 KiB
Text
73 lines
2.1 KiB
Text
Matrix Vision mvBlueCOUGAR-P (mvBC-P)
|
|
-------------------------------------
|
|
|
|
1. Board Description
|
|
|
|
The mvBC-P is a 70x40x40mm multi board gigabit ethernet network camera
|
|
with main focus on GigEVision protocol in combination with local image
|
|
preprocessing.
|
|
|
|
Power Supply is either VDC 48V or Pover over Ethernet (PoE).
|
|
|
|
2 System Components
|
|
|
|
2.1 CPU
|
|
Freescale MPC5200B CPU running at 400MHz core and 133MHz XLB/IPB.
|
|
64MB SDRAM @ 133MHz.
|
|
8 MByte Nor Flash on local bus.
|
|
1 serial ports. Console running on ttyS0 @ 115200 8N1.
|
|
|
|
2.2 PCI
|
|
PCI clock fixed at 66MHz. Arbitration inside FPGA.
|
|
Intel GD82541ER network MAC/PHY and FPGA connected.
|
|
|
|
2.3 FPGA
|
|
Altera Cyclone-II EP2C8 with PCI DMA engine.
|
|
Connects to Matrix Vision specific CCD/CMOS sensor interface.
|
|
Utilizes 64MB Nand Flash.
|
|
|
|
2.3.1 I/O @ FPGA
|
|
2 Outputs : photo coupler
|
|
2 Inputs : photo coupler
|
|
|
|
2.4 I2C
|
|
LM75 @ 0x90 for temperature monitoring.
|
|
EEPROM @ 0xA0 for vendor specifics.
|
|
image sensor interface (slave adresses depend on sensor)
|
|
|
|
3 Flash layout.
|
|
|
|
reset vector is 0x00000100, i.e. "LOWBOOT".
|
|
|
|
FF800000 u-boot
|
|
FF840000 u-boot script image
|
|
FF850000 redundant u-boot script image
|
|
FF860000 FPGA raw bit file
|
|
FF8A0000 tbd.
|
|
FF900000 root FS
|
|
FFC00000 kernel
|
|
FFFC0000 device tree blob
|
|
FFFD0000 redundant device tree blob
|
|
FFFE0000 environment
|
|
FFFF0000 redundant environment
|
|
|
|
mtd partitions are propagated to linux kernel via device tree blob.
|
|
|
|
4 Booting
|
|
|
|
On startup the bootscript @ FF840000 is executed. This script can be
|
|
exchanged easily. Default boot mode is "boot from flash", i.e. system
|
|
works stand-alone.
|
|
|
|
This behaviour depends on some environment variables :
|
|
|
|
"netboot" : yes ->try dhcp/bootp and boot from network.
|
|
A "dhcp_client_id" and "dhcp_vendor-class-identifier" can be used for
|
|
DHCP server configuration, e.g. to provide different images to
|
|
different devices.
|
|
|
|
During netboot the system tries to get 3 image files:
|
|
1. Kernel - name + data is given during BOOTP.
|
|
2. Initrd - name is stored in "initrd_name"
|
|
3. device tree blob - name is stored in "dtb_name"
|
|
Fallback files are the flash versions.
|