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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/board/Barix/ipam390/README.ipam390
parenta14b48d18a9ed03ec191cf16b162206998a895ce (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>
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-Summary
-=======
-The README is for the boot procedure on the ipam390 board
-
-In the context of U-Boot, the board is booted in three stages. The initial
-bootloader which executes upon reset is the ROM Boot Loader (RBL) and sits
-in the internal ROM. The RBL initializes the internal memory and then
-depending on the exact board and pin configurations will initialize another
-controller (such as NAND) to continue the boot process by loading
-the secondary program loader (SPL). The SPL will initialize the system
-further (some clocks, SDRAM). As on this board is used the falcon boot
-mode, now 2 ways are possible depending on the GPIO 7_14 input pin,
-connected with the "soft reset switch"
-
-If this pin is logical 1 (high level):
-spl code starts the kernel image without delay
-
-If this pin is logical 0 (low level):
-spl code starts the u-boot image
-
-AIS is an image format defined by TI for the images that are to be loaded
-to memory by the RBL. The image is divided into a series of sections and
-the image's entry point is specified. Each section comes with meta data
-like the target address the section is to be copied to and the size of the
-section, which is used by the RBL to load the image. At the end of the
-image the RBL jumps to the image entry point. The AIS format allows for
-other things such as programming the clocks and SDRAM if the header is
-programmed for it. We do not take advantage of this and instead use SPL as
-it allows for additional flexibility (run-time detect of board revision,
-loading the next image from a different media, etc).
-
-Compilation
-===========
-run "./MAKEALL ipam390" in the u-boot source tree.
-Once this build completes you will have a u-boot.ais file that needs to
-be written to the nand flash.
-
-Flashing the images to NAND
-==========================
-The AIS image can be written to NAND flash using the following commands.
-Assuming that the network is configured and enabled and the u-boot.ais file
-is tftp'able.
-
-U-Boot > print upd_uboot
-upd_uboot=tftp c0000000 ${u-boot};nand erase.part u-boot;nand write c0000000 20000 ${filesize}
-U-Boot >
-U-Boot > run upd_uboot
-Using DaVinci-EMAC device
-TFTP from server 192.168.1.1; our IP address is 192.168.20.71
-Filename '/tftpboot/ipam390/u-boot.ais'.
-Load address: 0xc0000000
-Loading: ##################################
- 1.5 MiB/s
-done
-Bytes transferred = 493716 (78894 hex)
-
-NAND erase.part: device 0 offset 0x20000, size 0x160000
-Erasing at 0x160000 -- 100% complete.
-OK
-
-NAND write: device 0 offset 0x20000, size 0x78894
- 493716 bytes written: OK
-U-Boot >
-
-Recovery
-========
-
-In the case of a "bricked" board, you need to use the TI tools found
-here[1] to create an uboot-uart-ais.bin file
-
-- cd to the u-boot source tree
-
-- compile the u-boot for the ipam390 board:
-$ ./MAKEALL ipam390
-
- -> Now we shall have u-boot.bin
-
-- Create u-boot-uart-ais.bin
-$ mono HexAIS_OMAP-L138.exe -entrypoint 0xC1080000 -ini
-ipam390-ais-uart.cfg -o ./uboot-uart-ais.bin ./u-boot.bin@0xC1080000;
-
-Note: The ipam390-ais-uart.cfg is found in the board directory
-for the ipam390 board, u-boot:/board/Barix/ipam390/ipam390-ais-uart.cfg
-
-- We can now run bootloader on IPAM390 via UART using the command below:
-
-$ mono ./slh_OMAP-L138.exe -waitForDevice -v -p /dev/tty.UC-232AC uboot-uart-ais.bin
-NOTE: Do not cancel the command execution! The command takes 20+ seconds
-to upload u-boot over serial and run it!
-Outcome:
-Waiting for the OMAP-L138...
-(AIS Parse): Read magic word 0x41504954.
-(AIS Parse): Waiting for BOOTME... (power on or reset target now)
-(AIS Parse): BOOTME received!
-(AIS Parse): Performing Start-Word Sync...
-(AIS Parse): Performing Ping Opcode Sync...
-(AIS Parse): Processing command 0: 0x5853590D.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Executing function...
-(AIS Parse): Processing command 1: 0x5853590D.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Executing function...
-(AIS Parse): Processing command 2: 0x5853590D.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Executing function...
-(AIS Parse): Processing command 3: 0x5853590D.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Executing function...
-(AIS Parse): Processing command 4: 0x5853590D.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Executing function...
-(AIS Parse): Processing command 5: 0x58535901.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Loading section...
-(AIS Parse): Loaded 326516-Byte section to address 0xC1080000.
-(AIS Parse): Processing command 6: 0x58535906.
-(AIS Parse): Performing Opcode Sync...
-(AIS Parse): Performing jump and close...
-(AIS Parse): AIS complete. Jump to address 0xC1080000.
-(AIS Parse): Waiting for DONE...
-(AIS Parse): Boot completed successfully.
-
-Operation completed successfully.
-
-Falcon Bootmode (boot linux without booting U-Boot)
-===================================================
-
-The Falcon Mode extends this way allowing to start the Linux kernel directly
-from SPL. A new command is added to U-Boot to prepare the parameters that SPL
-must pass to the kernel, using ATAGS or Device Tree.
-
-In normal mode, these parameters are generated each time before
-loading the kernel, passing to Linux the address in memory where
-the parameters can be read.
-With Falcon Mode, this snapshot can be saved into persistent storage and SPL is
-informed to load it before running the kernel.
-
-To boot the kernel, these steps under a Falcon-aware U-Boot are required:
-
-1. Boot the board into U-Boot.
-Use the "spl export" command to generate the kernel parameters area or the DT.
-U-Boot runs as when it boots the kernel, but stops before passing the control
-to the kernel.
-
-Here the command sequence for the ipam390 board:
-- load the linux kernel image into ram:
-
-U-Boot > nand read c0100000 2 200000 400000
-
-NAND read: device 0 offset 0x200000, size 0x400000
- 4194304 bytes read: OK
-
-- generate the bootparms image:
-
-U-Boot > spl export atags c0100000
-## Booting kernel from Legacy Image at c0100000 ...
- Image Name: Linux-3.5.1
- Image Type: ARM Linux Kernel Image (uncompressed)
- Data Size: 2504280 Bytes = 2.4 MiB
- Load Address: c0008000
- Entry Point: c0008000
- Verifying Checksum ... OK
- Loading Kernel Image ... OK
-subcommand not supported
-subcommand not supported
-Argument image is now in RAM at: 0xc0000100
-
-- copy the bootparms image into nand:
-
-U-Boot > mtdparts
-
-device nand0 <davinci_nand.0>, # parts = 6
- #: name size offset mask_flags
- 0: u-boot-env 0x00020000 0x00000000 0
- 1: u-boot 0x00160000 0x00020000 0
- 2: bootparms 0x00020000 0x00180000 0
- 3: factory-info 0x00060000 0x001a0000 0
- 4: kernel 0x00400000 0x00200000 0
- 5: rootfs 0x07a00000 0x00600000 0
-
-active partition: nand0,0 - (u-boot-env) 0x00020000 @ 0x00000000
-
-defaults:
-mtdids : nand0=davinci_nand.0
-mtdparts: mtdparts=davinci_nand.0:128k(u-boot-env),1408k(u-boot),128k(bootparms),384k(factory-info),4M(kernel),-(rootfs)
-U-Boot > nand erase.part bootparms
-
-NAND erase.part: device 0 offset 0x180000, size 0x20000
-Erasing at 0x180000 -- 100% complete.
-OK
-U-Boot > nand write c0000100 180000 20000
-
-NAND write: device 0 offset 0x180000, size 0x20000
- 131072 bytes written: OK
-U-Boot >
-
-You can use also the predefined U-Boot Environment variable "setbootparms",
-which will do all the above steps in one command:
-
-U-Boot > print setbootparms
-setbootparms=nand read c0100000 200000 400000;spl export atags c0100000;nand erase.part bootparms;nand write c0000100 180000 20000
-U-Boot > run setbootparms
-
-NAND read: device 0 offset 0x200000, size 0x400000
- 4194304 bytes read: OK
-## Booting kernel from Legacy Image at c0100000 ...
- Image Name: Linux-3.5.1
- Image Type: ARM Linux Kernel Image (uncompressed)
- Data Size: 2504280 Bytes = 2.4 MiB
- Load Address: c0008000
- Entry Point: c0008000
- Verifying Checksum ... OK
- Loading Kernel Image ... OK
-subcommand not supported
-subcommand not supported
-Argument image is now in RAM at: 0xc0000100
-
-NAND erase.part: device 0 offset 0x180000, size 0x20000
-Erasing at 0x180000 -- 100% complete.
-OK
-
-NAND write: device 0 offset 0x180000, size 0x20000
- 131072 bytes written: OK
-U-Boot >
-
-Links
-=====
-[1]
- http://sourceforge.net/projects/dvflashutils/files/OMAP-L138/