diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/doc/SPL | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/doc/SPL')
-rw-r--r-- | qemu/roms/u-boot/doc/SPL/README.am335x-network | 92 | ||||
-rw-r--r-- | qemu/roms/u-boot/doc/SPL/README.omap3 | 52 |
2 files changed, 0 insertions, 144 deletions
diff --git a/qemu/roms/u-boot/doc/SPL/README.am335x-network b/qemu/roms/u-boot/doc/SPL/README.am335x-network deleted file mode 100644 index 9b63791ad..000000000 --- a/qemu/roms/u-boot/doc/SPL/README.am335x-network +++ /dev/null @@ -1,92 +0,0 @@ -USING AM335x NETBOOT FEATURE - - Some boards (like TI AM335x based ones) have quite big on-chip RAM and -have support for booting via network in ROM. The following describes -how to setup network booting and then optionally use this support to flash -NAND and bricked (empty) board with only a network cable. - - I. Building the required images - 1. You have to enable generic SPL configuration options (see -doc/README.SPL) as well as CONFIG_SPL_NET_SUPPORT, -CONFIG_ETH_SUPPORT, CONFIG_SPL_LIBGENERIC_SUPPORT and -CONFIG_SPL_LIBCOMMON_SUPPORT in your board configuration file to build -SPL with support for booting over the network. Also you have to enable -the driver for the NIC used and CONFIG_SPL_BOARD_INIT option if your -board needs some board-specific initialization (TI AM335x EVM does). -If you want SPL to use some Vendor Class Identifier (VCI) you can set -one with CONFIG_SPL_NET_VCI_STRING option. am335x_evm configuration -comes with support for network booting preconfigured. - 2. Define CONFIG_BOOTCOMMAND for your board to load and run debrick -script after boot: -#define CONFIG_BOOTCOMMAND \ - "setenv autoload no; " \ - "bootp; " \ - "if tftp 80000000 debrick.scr; then " \ - "source 80000000; " \ - "fi" -(Or create additional board configuration with such option). - 3. Build U-Boot as usual - $ make <your_board_name> - You will need u-boot.img and spl/u-boot.bin images to perform -network boot. Copy them to u-boot-restore.img and -u-boot-spl-restore.bin respectively to distinguish this version -(with automatic restore running) from the main one. - - II. Host configuration. - 1. Setup DHCP server (recommended server is ISC DHCPd). - - Install DHCP server and setup it to listen on the interface you -chose to connect to the board (usually configured in -/etc/default/dhcpd or /etc/default/isc-dhcp-server). Make sure there -are no other active DHCP servers in the same network segment. - - Edit your dhcpd.conf and subnet declaration matching the address -on the interface. Specify the range of assigned addresses and bootfile -to use. IMPORTANT! Both RBL and SPL use the image filename provided -in the BOOTP reply but obviously they need different images (RBL needs -raw SPL image -- u-boot-spl-restore.bin while SPL needs main U-Boot -image -- u-boot-restore.img). So you have to configure DHCP server to -provide different image filenames to RBL and SPL (and possibly another -one to main U-Boot). This can be done by checking Vendor Class -Identifier (VCI) set by BOOTP client (RBL sets VCI to "DM814x ROM v1.0" -and you can set VCI used by SPL with CONFIG_SPL_NET_VCI_STRING option, -see above). - - If you plan to use TFTP server on another machine you have to set -server-name option to point to it. - - Here is sample configuration for ISC DHCPd, assuming the interface -used to connect to the board is eth0, and it has address 192.168.8.1: - -subnet 192.168.8.0 netmask 255.255.255.0 { - range dynamic-bootp 192.168.8.100 192.168.8.199; - - if substring (option vendor-class-identifier, 0, 10) = "DM814x ROM" { - filename "u-boot-spl-restore.bin"; - } elsif substring (option vendor-class-identifier, 0, 17) = "AM335x U-Boot SPL" { - filename "u-boot-restore.img"; - } else { - filename "uImage"; - } -} - - 2. Setup TFTP server. - Install TFTP server and put image files to it's root directory -(likely /tftpboot or /var/lib/tftpboot or /srv/tftp). You will need -u-boot.img and spl/u-boot-spl-bin files from U-Boot build directory. - - III. Reflashing (debricking) the board. - 1. Write debrick script. You will need to write a script that will -be executed after network boot to perform actual rescue actions. You -can use usual U-Boot commands from this script: tftp to load additional -files, nand erase/nand write to erase/write the NAND flash. - - 2. Create script image from your script. From U-Boot build directory: - -$ ./tools/mkimage -A arm -O U-Boot -C none -T script -d <your script> debrick.scr - -This will create debrick.scr file with your script inside. - - 3. Copy debrick.scr to TFTP root directory. You also need to copy -there all the files your script tries to load via TFTP. Example script -loads u-boot.img and MLO. You have to create these files doing regular -(not restore_flash) build and copy them to tftpboot directory. - - 4. Boot the board from the network, U-Boot will load debrick script -and run it after boot. diff --git a/qemu/roms/u-boot/doc/SPL/README.omap3 b/qemu/roms/u-boot/doc/SPL/README.omap3 deleted file mode 100644 index c77ca4300..000000000 --- a/qemu/roms/u-boot/doc/SPL/README.omap3 +++ /dev/null @@ -1,52 +0,0 @@ -Overview of SPL on OMAP3 devices -================================ - -Introduction ------------- - -This document provides an overview of how SPL functions on OMAP3 (and related -such as am35x and am37x) processors. - -Methodology ------------ - -On these platforms the ROM supports trying a sequence of boot devices. Once -one has been used successfully to load SPL this information is stored in memory -and the location stored in a register. We will read this to determine where to -read U-Boot from in turn. - -Memory Map ----------- - -This is an example of a typical setup. See top-level README for documentation -of which CONFIG variables control these values. For a given board and the -amount of DRAM available to it different values may need to be used. -Note that the size of the SPL text rodata and data is enforced with a CONFIG -option and growing over that size results in a link error. The SPL stack -starts at the top of SRAM (which is configurable) and grows downward. The -space between the top of SRAM and the enforced upper bound on the size of the -SPL text, data and rodata is considered the safe stack area. Details on -confirming this behavior are shown below. - -A portion of the system memory map looks as follows: -SRAM: 0x40200000 - 0x4020FFFF -DDR1: 0x80000000 - 0xBFFFFFFF - -Option 1 (SPL only): -0x40200800 - 0x4020BBFF: Area for SPL text, data and rodata -0x4020E000 - 0x4020FFFC: Area for the SPL stack. -0x80000000 - 0x8007FFFF: Area for the SPL BSS. -0x80100000: CONFIG_SYS_TEXT_BASE of U-Boot -0x80208000 - 0x80307FFF: malloc() pool available to SPL. - -Option 2 (SPL or X-Loader): -0x40200800 - 0x4020BBFF: Area for SPL text, data and rodata -0x4020E000 - 0x4020FFFC: Area for the SPL stack. -0x80008000: CONFIG_SYS_TEXT_BASE of U-Boot -0x87000000 - 0x8707FFFF: Area for the SPL BSS. -0x87080000 - 0x870FFFFF: malloc() pool available to SPL. - -For the areas that reside within DDR1 they must not be used prior to s_init() -completing. Note that CONFIG_SYS_TEXT_BASE must be clear of the areas that SPL -uses while running. This is why we have two versions of the memory map that -only vary in where the BSS and malloc pool reside. |