mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 04:36:16 +09:00
93d4334f7f
We have switched to Kconfig and the boards.cfg file is going to be removed. We have to retrieve the board status and maintainers information from it. The MAINTAINERS format as in Linux Kernel would be nice because we can crib the scripts/get_maintainer.pl script. After some discussion, we chose to put a MAINTAINERS file under each board directory, not the top-level one because we want to collect relevant information for a board into a single place. TODO: Modify get_maintainer.pl to scan multiple MAINTAINERS files. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Suggested-by: Tom Rini <trini@ti.com> Acked-by: Simon Glass <sjg@chromium.org> |
||
|---|---|---|
| .. | ||
| .gitignore | ||
| bootscript | ||
| fpga.c | ||
| fpga.h | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| mvblm7.c | ||
| mvblm7.h | ||
| pci.c | ||
| README.mvblm7 | ||
Matrix Vision mvBlueLYNX-M7 (mvBL-M7) ------------------------------------- 1. Board Description The mvBL-M7 is a 120x120mm single board computing platform with strong focus on stereo image processing applications. Power Supply is either VDC 12-48V or Pover over Ethernet (PoE) on any port (requires add-on board). 2 System Components 2.1 CPU Freescale MPC8343VRAGDB CPU running at 400MHz core and 266MHz csb. 512MByte DDR-II memory @ 133MHz. 8 MByte Nor Flash on local bus. 2 Vitesse VSC8601 RGMII ethernet Phys. 1 USB host controller over ULPI I/F. 2 serial ports. Console running on ttyS0 @ 115200 8N1. 1 SD-Card slot connected to SPI. System configuration (HRCW) is taken from I2C EEPROM. 2.2 PCI A miniPCI Type-III socket is present. PCI clock fixed at 66MHz. 2.3 FPGA Altera Cyclone-II EP2C20/35 with PCI DMA engines. Connects to dual Matrix Vision specific CCD/CMOS sensor interfaces. Utilizes another 256MB DDR-II memory and 32-128MB Nand Flash. 2.3.1 I/O @ FPGA 2x8 Outputs : Infineon High-Side Switches to Main Supply. 2x8 Inputs : Programmable input threshold + trigger capabilities 2 dedicated flash interfaces for illuminator boards. Cross trigger for chaining several boards. 2.4 I2C Bus1: MAX5381 DAC @ 0x60 for 1st digital input threshold. LM75 @ 0x90 for temperature monitoring. EEPROM @ 0xA0 for system setup (HRCW etc.) + vendor specifics. 1st image sensor interface (slave addresses depend on sensor) Bus2: MAX5381 DAC @ 0x60 for 2nd digital input threshold. 2nd image sensor interface (slave addresses depend on sensor) 3 Flash layout. reset vector is 0xFFF00100, i.e. "HIGHBOOT". FF800000 environment FF802000 redundant environment FF804000 u-boot script image FF806000 redundant u-boot script image FF808000 device tree blob FF80A000 redundant device tree blob FF80C000 tbd. FF80E000 tbd. FF810000 kernel FFC00000 root FS FFF00000 u-boot FFF80000 FPGA raw bit file mtd partitions are propagated to linux kernel via device tree blob. 4 Booting On startup the bootscript @ FF804000 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.