mirror of
https://github.com/AsahiLinux/u-boot
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3929fb0a14
Note this is a tree-wide change affecting multiple architectures. At present we use __bss_start, but mostly __bss_end__. This seems inconsistent and in a number of places __bss_end is used instead. Change to use __bss_end for the BSS end symbol throughout U-Boot. This makes it possible to use the asm-generic/sections.h file on all archs. Signed-off-by: Simon Glass <sjg@chromium.org> |
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| .. | ||
| bootscript | ||
| fpga.c | ||
| fpga.h | ||
| Makefile | ||
| mvsmr.c | ||
| mvsmr.h | ||
| README.mvsmr | ||
| u-boot.lds | ||
Matrix Vision mvSMR ------------------- 1. Board Description The mvSMR is a 75x130mm single image processing board used in automation. Power Supply is 24VDC. 2 System Components 2.1 CPU Freescale MPC5200B CPU running at 400MHz core and 133MHz XLB/IPB. 64MB DDR-I @ 133MHz. 8 MByte Nor Flash on local bus. 2 serial ports. Console running on ttyS0 @ 115200 8N1. 2.2 PCI PCI clock fixed at 33MHz due to old'n'slow Xilinx PCI core. 2.3 FPGA Xilinx Spartan-3 XC3S200 with PCI DMA engine. Connects to Matrix Vision specific CCD/CMOS sensor interface. 2.4 I2C EEPROM @ 0xA0 for vendor specifics. image sensor interface (slave addresses depend on sensor) 3 Flash layout. reset vector is 0x00000100, i.e. "LOWBOOT". FF800000 u-boot FF806000 u-boot script image FF808000 u-boot environment FF840000 FPGA raw bit file FF880000 root FS FFF00000 kernel 4 Booting On startup the bootscript @ FF806000 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" Fallback files are the flash versions.