boot-architecture

boot-architecture@lists.linaro.org

1 participants
681 discussions

by Grant Likely

[cc'ing the boot architecture list; this conversation should be in public] On Wed, May 29, 2013 at 11:19 AM, Leif Lindholm <leif.lindholm(a)linaro.org> wrote: > Hi Yi, > > On 28 May 2013 15:52, Li Yi <yi.li(a)linaro.org> wrote: >> just modify linux loader , add SMBIOS address information into fdt. then >> I will modify the dmidecode to parse the /dev/devicetree to find SMBIOS >> table pointer. Maybe this way can skip grub and kernel's modification. > > Ok, yes, that should work. > >> the only problem I care about is the address wrote into fdt ,it is a >> real physical address, does dmidecode (tool) can read this address ,and do >> the right thing? it need to be proved. > > Yes - UEFI is guaranteed to run with a 1:1 mapping, so the address you see it > at in the UEFI linux loader is the physical address. > >> Grant: if kernel will use the SMBIOS's region memory, can I reserve the >> 64M memory from the top total ,then kernel will know it's reserved ,will not >> use the region again ,right? > > That should be enough. Yes, but you shouldn't even need to do that. I just looked at the LinuxLoader code, in particular the UEFI FDT code, and I've noticed that the reserved regions should already be set up. Look in ArmPkg/Library/BdsLib/BdsLinuxFdt.c, about line 420. The function PrepareFdt() retrieves the UEFI memory map and calls fdt_add_mem_rsv() for each region. It does use the function IsLinuxReservedRegion() to filter the regions, so if SMBIOS uses a different region type then you'll need to add that type to the list. So, if I'm correct, it should be sufficient to merely enable SMBIOS support in UEFI and the kernel will automatically mark the SMBIOS region as reserved. You can verify this by adding "memblock=debug" to the kernel command line and looking at the kernel boot output. You'll see something like this: memblock_reserve: [0x00000000008400-0x0000000042e98c] arm_memblock_init+0x4c/0x150 memblock_reserve: [0x00000004000000-0x0000000452f400] arm_memblock_init+0xcc/0x150 memblock_reserve: [0x00000000004000-0x00000000008000] arm_memblock_init+0xf0/0x150 memblock_reserve: [0x00000004530000-0x00000004537350] arm_dt_memblock_reserve+0x30/0xb0 MEMBLOCK configuration: memory size = 0x8000000 reserved size = 0x960cdc memory.cnt = 0x1 memory[0x0] [0x00000000000000-0x00000007ffffff], 0x8000000 bytes reserved.cnt = 0x4 reserved[0x0] [0x00000000004000-0x00000000007fff], 0x4000 bytes reserved[0x1] [0x00000000008400-0x0000000042e98b], 0x42658c bytes reserved[0x2] [0x00000004000000-0x0000000452f3ff], 0x52f400 bytes reserved[0x3] [0x00000004530000-0x0000000453734f], 0x7350 bytes Memory policy: ECC disabled, Data cache writeback memblock_reserve: [0x00000007fff000-0x00000008000000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffe000-0x00000007fff000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffdf10-0x00000007ffe000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffc000-0x00000007ffd000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffb000-0x00000007ffc000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffa000-0x00000007ffb000] memblock_alloc_base_nid+0x68/0x84 Note: this only works with the UEFI LinuxLoader. The GRUB code doesn't currently add the UEFI reserved regions to the FDT reserved map. g.

12 years, 10 months

EFI_STUB notes

by Grant Likely

Hi Roy, Here are some very quick notes on what I found on writing UEFI applications. I found a library called "gnuefi" which allows building EFI applications apart from the Tianocore build tree. It looks interesting, but has not been ported to ARM. I don't yet know if it is worthwhile pursuing. http://gnu-efi.sourceforge.net/ As mentioned, the Linux kernel has an EFI stub already. I could tell you which files to look at, but really just doing a "git grep EFI_STUB" in the kernel tree will show you all the files that you need to care about. :-) You'll need to figure out how to get a UEFI PE-COFF header into the LInux kernel zImage wrapper. It shouldn't be too hard. You'll need to look at the startup code in arch/arm/boot/compressed/head.S. The PE-COFF header will need to go somewhere after the start: label. You should be able to see the existing LInux kernel "header" (not much of a header, more of a magic number) about 10 lines down from the start label. That's all I can write at the moment. We can talk more tomorrow. g.

12 years, 11 months

ARMv7-A UEFI runtime services support in Linux

by Leif Lindholm

Terse information, more engineering notes than documentation, and links to sources can be found at: https://wiki.linaro.org/LEG/Engineering/Kernel/UEFI/RuntimeServices Contains a few known bugs, and will need some fundamental discussions/reengineering, but lets us start experimenting. / Leif

12 years, 11 months

PXE for arndale

by Rony Nandy

To boot linux kernel using TFTP in Arndale. Following is the steps: 1. Apply the patches 13.03 branch. (on top of Olivers Ethernet patches,If Olivier's patches doesn't apply, then do it manually) 2. Compile and boot as usual. 3. Wait till USB initialization and then do as shown below: The default boot selection will start in 1 seconds UsbEnumeratePort: Device Connect/Disconnect Normally UsbEnumeratePort: Device Connect/Disconnect Normally UsbEnumeratePort: Device Connect/Disconnect Normally EhcExecTransfer: transfer failed with 8 EhcControlTransfer: error - Device Error, transfer - 8 0x9F6BDA90: Allocate pNicDevice, 792 bytes 0x9F4DCD10: Allocated timer Installed: gEfiCallerIdGuid on 0x9F4DE390 Installed: gEfiSimpleNetworkProtocolGuid on 0x9F4DE390 MnpSyncSendPacket: No network cable detected. MnpSyncSendPacket: No network cable detected. MnpSyncSendPacket: No network cable detected. MnpSyncSendPacket: No network cable detected. ERROR: Did not find Linux kernel. [1] SD-MMC Booting - PciRoot(0x0)/Pci(0x0,0x0)/USB(0x2,0x0)/USB(0x1,0x0)/USB(0x3,0x0)/IPv4(192.168.1.1)/uImage - Arguments: root=/dev/mmcblk1p2 rw rootwait console=ttySAC2,115200n8 init --no-log - LoaderType: Linux kernel with global FDT ----------------------- Global FDT Config - VenHw(3A02E7FE-0649-4FB4-BE4F-A862CA1872A9)/HD(2,MBR,0x000039F9,0x2000,0x1A000)/exynos5250-arndale.dtb ----------------------- [a] Boot Manager [b] Shell Start: a [1] Add Boot Device Entry [2] Update Boot Device Entry [3] Remove Boot Device Entry [4] Update FDT path [5] Return to main menu Choice: 1 Installed Fat filesystem on 9E63E190 [1] boot (51 MB) - VenHw(3A02E7FE-0649-4FB4-BE4F-A862CA1872A9)/HD(2,MBR,0x000039F9,0x2000,0x1A000) [2] VenHw(B615F1F5-5088-43CD-809C-A16E52487D00) - VenHw(B615F1F5-5088-43CD-809C-A16E52487D00) [3] PXE on MAC Address: 00:40:5C:26:0A:5B - PciRoot(0x0)/Pci(0x0,0x0)/USB(0x2,0x0)/USB(0x1,0x0)/USB(0x3,0x0) [4] TFTP on MAC Address: 00:40:5C:26:0A:5B - PciRoot(0x0)/Pci(0x0,0x0)/USB(0x2,0x0)/USB(0x1,0x0)/USB(0x3,0x0) Select the Boot Device: 4 Get the IP address from DHCP: [y/n] y Get the TFTP server IP address: 192.168.1.1 File path of the EFI Application or the kernel : uImage Is an EFI Application? [y/n] n Boot Type: [a] ATAGS, [g] Global FDT or [l] Local FDT? [a/g/l] g Add an initrd: [y/n] n Arguments to pass to the binary: root=/dev/mmcblk1p2 rw rootwait console=ttySAC2,115200n8 init --no-log Description for this new Entry: tftp [1] Add Boot Device Entry [2] Update Boot Device Entry [3] Remove Boot Device Entry [4] Update FDT path [5] Return to main menu Choice: 5 [1] SD-MMC Booting - PciRoot(0x0)/Pci(0x0,0x0)/USB(0x2,0x0)/USB(0x1,0x0)/USB(0x3,0x0)/IPv4(192.168.1.1)/uImage - Arguments: root=/dev/mmcblk1p2 rw rootwait console=ttySAC2,115200n8 init --no-log - LoaderType: Linux kernel with global FDT [2] tftp - PciRoot(0x0)/Pci(0x0,0x0)/USB(0x2,0x0)/USB(0x1,0x0)/USB(0x3,0x0)/IPv4(192.168.1.1)/uImage - Arguments: root=/dev/mmcblk1p2 rw rootwait console=ttySAC2,115200n8 init --no-log - LoaderType: Linux kernel with global FDT ----------------------- Global FDT Config - VenHw(3A02E7FE-0649-4FB4-BE4F-A862CA1872A9)/HD(2,MBR,0x000039F9,0x2000,0x1A000)/exynos5250-arndale.dtb ----------------------- [a] Boot Manager [b] Shell Start: 2

13 years

boot Ubuntu using PXE from U-Boot on the Samsung XE303C12-A01US Chromebook

by Mario

Hello. I'm trying to boot Ubuntu using PXE from U-Boot on the Samsung XE303C12-A01US Chromebook. I would like to understand better the point 5 of the tutorial here : https://wiki.linaro.org/Boards/Arndale/Setup/PXEBoot it says : "At the u-boot prompt, set the environmental variables "serverip" and "ipaddr" as per the board and host PC configuration. Now set the following environmental variables as mentioned..." the problem is that the Samsung XE303C12-A01US does not have a serial port and I can't stop the u-boot booting and set the enviromental variables manually. I would like to know how can I embed them inside u-boot. Also because there is not a configuration file like boot.cmd/boot.scr like there is on the pandaboard that can be used to pass the parameters. Thanks. -- Mario.

13 years

[PATCH 1/2] Samsung/Arndale: Enable component name protocol

by Shivamurthy Shastri

Component Name Protocol been enabled to make sure the shell commands like drivers, devtree and devices shows the device name and other features properly. Signed-off-by: Shivamurthy Shastri <shiva.murthy(a)samsung.com> Signed-off-by: Rony Nandy <rony.nandy(a)linaro.org> --- SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc index fe574af..941c6e5 100755 --- a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc +++ b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc @@ -69,6 +69,11 @@ ################################################################################ [PcdsFeatureFlag.common] + gEfiMdePkgTokenSpaceGuid.PcdComponentNameDisable|FALSE + gEfiMdePkgTokenSpaceGuid.PcdDriverDiagnosticsDisable|TRUE + gEfiMdePkgTokenSpaceGuid.PcdComponentName2Disable|FALSE + gEfiMdePkgTokenSpaceGuid.PcdDriverDiagnostics2Disable|TRUE + !ifdef $(EDK2_SKIP_PEICORE) gArmPlatformTokenSpaceGuid.PcdSystemMemoryInitializeInSec|TRUE gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores|TRUE -- 1.8.2

13 years

lists.linaro.org maintenance completed

by IT Services

This is to let you know that the migration of lists.linaro.org has been successfully completed. As per the email I sent on Wednesday, it may take some time for the new address of the server to be seen by your computer. You can check this by trying to connect to the web site: http://lists.linaro.org/ If you are able to connect and you do not get an error, this means you are connecting to the new server and you can send email to the lists. If you experience any problems after the weekend and you find that you still cannot connect to the server, please reply to this email to let us know. Regards Philip IT Services Manager Linaro

13 years, 1 month

OMAP4 PandaBoard 4430 vs PandaBoardES 4460

by Péter Ujfalusi

Hi, First of all I'm not sure if this is the right list to post this, but I thought boot-architecture might be the best list to post. Currently we have one hwpack for PandaBoard4430 and PandaBoardES 4460 which means that when we install the hwpack on PandaBoardES the kernel thinks it is running on PandaBoard 4430. However there is a HW difference between the two boards: Audio routing is different (for capture path). Also the hdmi pin muxing need to be different (according to the DTS files). I can see two ways of dealing with the different versions: 1. create separate hwpacks for the revisions where only the included DTB file is different: PandaBoard 4430: omap4-panda.dtb PandaBoardES: omap4-panda-es.dtb 2. Or to have single hwpack for Panda: With the included patch in u-boot Include both omap4-panda.dtb and omap4-panda-es.dtb files to the boot partition. Modify the boot.txt to load different dtb based on the board: if is_pandaES; then setenv bootcmd "fatload mmc 0:1 0x80200000 uImage; fatload mmc 0:1 0x81600000 uInitrd; fatload mmc 0:1 0x815f0000 omap4-panda-es.dtb; bootm 0x80200000 0x81600000 0x815f0000"; else setenv bootcmd "fatload mmc 0:1 0x80200000 uImage; fatload mmc 0:1 0x81600000 uInitrd; fatload mmc 0:1 0x815f0000 omap4-panda.dtb; bootm 0x80200000 0x81600000 0x815f0000"; fi; For audio we need to tell the difference between the two revision and this is done via different DTB blob. Thank you, Péter

13 years, 1 month

Planned maintenance - lists.linaro.org

by IT Services

Hello You are receiving this email because you are subscribed to one or more mailing lists provided by the lists.linaro.org server. IT Services are announcing planned maintenance for this server scheduled for *Friday 15th March 2013, starting at 2pm GMT*. The purpose of the work is to move the service to another server. There will be some disruption during this maintenance. In order to ensure that you do not accidentally try to use the service while it is being moved, the current server will be shut down at 2pm. A further email will be sent on Friday afternoon to confirm that the migration of the service is completed. However, due to the way servers are found, it may take a while before your computer is able to connect to the relocated service. After the old server has been shut down, email sent to any of the lists will be queued, but it is possible that the sending server will still trying to deliver the email to the old server rather than the new one when it is started. It is therefore *strongly* recommended that you do not send any email to an @lists.linaro.org email address until you can connect to the new service, which you will be able to test by trying to use a web browser to connect to http://lists.linaro.org after you receive the email confirming that the migration has been completed. Since the old service will be shut down, if you are able to connect, you can be sure you have connected to the new service. If by Monday you are still unable to connect to the service or you are not able to send email to an @lists.linaro.org email address, please send an email to its(a)linaro.org. Thank you. Regards Philip IT Services Manager Linaro

13 years, 1 month

[PATCH] Samsung/Arndale: Enable component name protocol

by Shivamurthy Shastri

Component Name Protocol been enabled to make sure the shell commands like drivers, devtree and devices shows the device name and other features properly. Signed-off-by: Shivamurthy Shastri <shiva.murthy(a)samsung.com> Signed-off-by: Rony Nandy <rony.nandy(a)linaro.org> --- SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc index a545e80..519b7f8 100755 --- a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc +++ b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc @@ -68,6 +68,11 @@ ################################################################################ [PcdsFeatureFlag.common] + gEfiMdePkgTokenSpaceGuid.PcdComponentNameDisable|FALSE + gEfiMdePkgTokenSpaceGuid.PcdDriverDiagnosticsDisable|TRUE + gEfiMdePkgTokenSpaceGuid.PcdComponentName2Disable|FALSE + gEfiMdePkgTokenSpaceGuid.PcdDriverDiagnostics2Disable|TRUE + !ifdef $(EDK2_SKIP_PEICORE) gArmPlatformTokenSpaceGuid.PcdSystemMemoryInitializeInSec|TRUE gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores|TRUE -- 1.8.1.1

13 years, 1 month

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