May 2021 - U-Boot

Re: [PATCH] powerpc: fix regression in arch_initr_trap()
by Matt Merhar 19 May '21

19 May '21

On Tue, 18 May 2021 01:50:56 -0400 "Stefan Roese" <sr(a)denx.de> wrote: > Hi Matt, > > On 17.05.21 19:32, Matt Merhar wrote: > > The assembly output of the arch_initr_trap() function differed by a > > single byte after common.h was removed from traps.c: > > > > fff49a18 <arch_initr_trap>: > > fff49a18: 94 21 ff f0 stwu r1,-16(r1) > > fff49a1c: 7c 08 02 a6 mflr r0 > > fff49a20: 90 01 00 14 stw r0,20(r1) > > -fff49a24: 80 62 00 44 lwz r3,68(r2) > > +fff49a24: 80 62 00 38 lwz r3,56(r2) > > fff49a28: 4b ff 76 19 bl fff41040 <trap_init> > > fff49a2c: 80 01 00 14 lwz r0,20(r1) > > fff49a30: 38 60 00 00 li r3,0 > > fff49a34: 38 21 00 10 addi r1,r1,16 > > fff49a38: 7c 08 03 a6 mtlr r0 > > > > This was causing a consistent hard lockup during the MMC read / > > loading of the QoriQ FMan firmware on a P2041RDB board. > > > > Re-adding the header causes identical assembly to be emitted and > > allows the firmware loading and subsequent boot to succeed. > > > > Fixes: 401d1c4f5d ("common: Drop asm/global_data.h from common > > header") Signed-off-by: Matt Merhar <mattmerhar(a)protonmail.com> > > Did you try to investigate what exactly causes this difference in the > assembly code, when the header is not included? Re-adding this header > seems like "papering over" the real problem to me. As Rasmus helpfully pointed out, the global_data struct has a different layout depending on whether CONFIG_POST is defined. In this case, CONFIG_POST is inconsistently defined depending on which headers are included by the various bits that reference that struct. For the P2041RDB, the define now comes in like: common.h -> config.h -> configs/P2041RDB.h -> #define CONFIG_POST CONFIG_SYS_POST_MEMORY Would it help to clarify this in the commit message? Would it be better to include config.h instead of common.h? I could resend the patch with either or both changes. CONFIG_POST seems to only be defined in a handful of headers in include/configs/. > > Thanks, > Stefan > > > --- > > > > arch/powerpc/lib/traps.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/arch/powerpc/lib/traps.c b/arch/powerpc/lib/traps.c > > index c7bce82a44..ab8ca269a5 100644 > > --- a/arch/powerpc/lib/traps.c > > +++ b/arch/powerpc/lib/traps.c > > @@ -4,6 +4,7 @@ > > * Wolfgang Denk, DENX Software Engineering, wd(a)denx.de. > > */ > > > > +#include <common.h> > > #include <init.h> > > #include <asm/global_data.h> > > > > > > > Viele Grüße, > Stefan > > -- > DENX Software Engineering GmbH, Managing Director: Wolfgang Denk > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: sr(a)denx.de

1 0

[PATCH 1/1] sandbox: don't refer to symbol _init
by Heinrich Schuchardt 19 May '21

19 May '21

GCC provides a symbol _init in crti.o on x86_64 and aarch64 but not on RISC-V. The following lines leads to a build error for sandbox_defconfig on RISC_V due to the missing symbol: common/board_f.c:269: #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP) gd->mon_len = (ulong)&_end - (ulong)_init; The sandbox code is not copied into the memory allocated using mmap(). Hence we can safely use gd->mon_len = 0 to avoid the reference to _init. Signed-off-by: Heinrich Schuchardt <xypron.glpk(a)gmx.de> --- common/board_f.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/common/board_f.c b/common/board_f.c index 203e965799..c1b8e63e56 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -265,7 +265,9 @@ static int setup_mon_len(void) { #if defined(__ARM__) || defined(__MICROBLAZE__) gd->mon_len = (ulong)&__bss_end - (ulong)_start; -#elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP) +#elif defined(CONFIG_SANDBOX) + gd->mon_len = 0; +#elif defined(CONFIG_EFI_APP) gd->mon_len = (ulong)&_end - (ulong)_init; #elif defined(CONFIG_NIOS2) || defined(CONFIG_XTENSA) gd->mon_len = CONFIG_SYS_MONITOR_LEN; -- 2.30.2

2 1

[PATCH 1/1] sandbox: add symbol _init for RISC-V compilation
by Heinrich Schuchardt 19 May '21

19 May '21

The sandbox does not build on RISC-V when _init is not defined. Errors like the following were observed. Which function was referred to depended on the configuration. /usr/bin/ld: common/built-in.o: in function `parse_stream_outer': /common/cli_hush.c:3175: undefined reference to `_init' collect2: error: ld returned 1 exit status make: *** [Makefile:1726: u-boot] Error 1 /usr/bin/ld: common/built-in.o: in function `bootdelay_process': common/autoboot.c:335: undefined reference to `_init' collect2: error: ld returned 1 exit status make: *** [Makefile:1726: u-boot] Error 1 Signed-off-by: Heinrich Schuchardt <xypron.glpk(a)gmx.de> --- arch/sandbox/cpu/u-boot.lds | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds index a1f509c9ab..d9e7ffcea3 100644 --- a/arch/sandbox/cpu/u-boot.lds +++ b/arch/sandbox/cpu/u-boot.lds @@ -9,6 +9,8 @@ SECTIONS { . = ALIGN(4); + /* RISC-V GCC wants this dummy symbol */ + _init = .; .u_boot_list : { KEEP(*(SORT(.u_boot_list*))); } -- 2.30.2

4 11

RE: [TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages
by Madhukar Pappireddy 19 May '21

19 May '21

Hi, I tried to summarize the discussions in the previous TF-A tech forum regarding the proposal to adopt Hand-off Blocks (HOBs) for passing information along the boot chain. I am certain I could not capture all suggestions/concerns brought up during the call. I apologize if I missed and/or misinterpreted any comments and would appreciate it if everyone could share their thoughts in response to this email thread. The idea is to share information to other boot phases: > Dynamic information: Created during runtime. Shared in the form of a chain of blobs(built as a linked list of C structure objects i.e., HOB list). > Static information: Known at compile time. Historically, shared through the use of Device Tree/ACPI tables Both the above requirements are common in many ecosystems and need to co-exist. There are broadly 3 problems to solve: 1. Format of HOB structures: It looks like the consensus is that we could use existing mechanisms for this (BL_AUX_PARAM in TF-A or bloblist in u-boot). 2. Identification of HOB list entries: There is a debate about whether tags would suffice or if the HOB list producer and consumer would depend on UUID/GUIDs for identifying a specific HOB structure. Another suggestion was to use a hybrid approach. Reserve a single tag ID for identifying/constructing a HOB structure that further leverages UUID based identifier. This way, the generic HOB list doesn't need to support UUIDs and can work with tags. 3. The design contract for the static interface between two boot phases: The problem at hand is whether to pass a pointer to a HOB list or a device tree blob through the general-purpose registers for configuration hand-off between two boot phases. Some proposals that came up: > Proposal 1: Always pass a pointer to the device tree blob through the GP register and capture the pointer to the HOB list as a property of a node that is uniquely identifiable by the downstream boot phase. This needs to define a device tree binding such that producer and consumer agree on the information passed. > Proposal 2: Pass a pointer to a generic container through the GP register that can be interpreted appropriately by both boot loaders(i.e., producer and consumer of the boot info). This container can either be a dtb or a HOB list which can be simply inferred by checking for a magic header that indicates if the buffer appears to be a flattened device tree. > One another concern that was brought up offline is to make sure we don't break current design contracts between various boot loader phases in TF-A. Many of the general-purpose registers have a designated purpose such as to share configurations between BL images( such as firmware config dtb, SoC config dtb, Non trusted firmware config dtb, memory layout, entry point info, etc.). If I am not mistaken, a single design may not fit the needs of every segment(client, Infra, embedded) and the forum is open to solutions tailored for individual segments. Joanna will be sending a follow up email with more information about future TF-A tech forums that serves as a platform for further discussions. Thanks, Madhukar -----Original Message----- From: TF-A <tf-a-bounces(a)lists.trustedfirmware.org> On Behalf Of Joanna Farley via TF-A Sent: Sunday, May 16, 2021 5:19 AM To: Okash Khawaja <okash.khawaja(a)gmail.com>; Simon Glass <sjg(a)chromium.org> Cc: Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com>; Boot Architecture Mailman List <boot-architecture(a)lists.linaro.org>; tf-a(a)lists.trustedfirmware.org; Ed Stuber <edstuber(a)amperecomputing.com>; Arjun Khare <akhare(a)amperecomputing.com>; U-Boot Mailing List <u-boot(a)lists.denx.de>; Paul Isaac's <paul.isaacs(a)linaro.org>; Ron Minnich <rminnich(a)google.com>; Moe Ammar <moe(a)amperecomputing.com> Subject: Re: [TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages Apologies I failed with the recording. Manish/Madhu will reply early next week with the slides and some notes to help with a follow up session which we hope to hold this Thursday. Invite and agenda will also be sent out early next week. Thanks Joanna On 14/05/2021, 13:30, "TF-A on behalf of Okash Khawaja via TF-A" <tf-a-bounces(a)lists.trustedfirmware.org on behalf of tf-a(a)lists.trustedfirmware.org> wrote: Hi, Do we have slides and video from last week's discussion? Thanks, Okash On Wed, May 5, 2021 at 11:52 PM Simon Glass via TF-A <tf-a(a)lists.trustedfirmware.org> wrote: > > Hi Harb, > > Thanks for the idea. I am still not completely sure what benefit UUID provides to an open project. I'd like to propose something different, more in the spirit of open collaboration. I also worry that the word 'standard' seems to be a synonym for UUIDs, UEFI, etc., i.e. enabling/preferring closed-source firmware and the continued decline of open-source projects. It really should not be. > > So I suggest: Use simple integer IDs and reserve some area for 'private' use. If you want to collaborate across projects outside your company, you either need to allocate a 'public' ID or agree privately between the parties which private ID to use. > > This means that the default and easiest option is for collaboration and a public ID, with private ones (whose purpose may be secret) reserved just for private use. > > Regards, > Simon > > On Wed, 5 May 2021 at 11:42, Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com> wrote: >> >> Hey Folks, >> >> We wanted to put out a middle-ground proposal to help guide the discussion on the call tomorrow. >> >> >> >> A proposal that we have been discussing offline involves reserving a single tag ID for the purpose of construction UEFI PI HOB List structure, and that tag would be used to identify a HOB-specific structure that does leverage UUID based identifier. This will eliminate the burden of having to support UUID as the tag, and this enables projects that require UUID based identifiers for the broad range of HOB structures that need to be produced during the booting of the platform. Once we have a tag for a HOB list, this will enable various HOB producers that can add/extend the HOB list in TF-A code (or even pre-TF-A code), with a HOB consumer for that UUID/GUID on the other side (i.e. whatever the BL33 image is booting on that platform). >> >> >> >> Essentially, the idea is if someone would like to support HOB structures in a standard way using TF-A, they would wrap it up in a BL_AUX_PARAM/BLOB structure (whatever the group decides) and the way we identify the structure as a HOB list is with this new reserved tag. >> >> >> >> Hopefully that makes sense and less contentious. Look forward to discuss this further on the call. >> >> >> >> Thanks, >> >> --Harb >> >> >> >> From: Manish Pandey2 <Manish.Pandey2(a)arm.com> >> Sent: Friday, April 30, 2021 8:14 AM >> To: François Ozog <francois.ozog(a)linaro.org> >> Cc: Simon Glass <sjg(a)chromium.org>; Julius Werner <jwerner(a)chromium.org>; Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com>; Boot Architecture Mailman List <boot-architecture(a)lists.linaro.org>; tf-a(a)lists.trustedfirmware.org; U-Boot Mailing List <u-boot(a)lists.denx.de>; Paul Isaac's <paul.isaacs(a)linaro.org>; Ron Minnich <rminnich(a)google.com> >> Subject: Re: [TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages >> >> >> >> Hi All, >> >> >> >> Please find invite for next TF-A Tech Forum session to continue our discussions on HOB implementation, feel free to forward it to others. >> >> >> >> The next TF-A Tech Forum is scheduled for Thu 6th May 2021 16:00 – 17:00 (BST). >> >> >> >> Agenda: >> >> Discussion Session: Static and Dynamic Information Handling in TF-A >> >> Lead by Manish Pandey and Madhukar Pappireddy >> >> · There is ongoing mailing lists discussion[1] related with adopting a mechanism to pass information through boot stages. >> >> The requirement is two-fold: >> >> 1. Passing static information(config files) >> >> 2. Passing dynamic information (Hob list) >> >> In the upcoming TF-A tech forum, we can start with a discussion on dynamic information passing and if time permits, we can cover static information passing. The purpose of the call is to have an open discussion and continue the discussion from the trusted-substrate call[2] done earlier. We would like to understand the various requirements and possible ways to implement it in TF-A in a generalized way so that it can work with other Firmware projects. >> >> >> >> The two specific item which we would like to discuss are: >> >> 1. HOB format: TF-A/u-boot both has an existing bloblist implementation, which uses tag values. Question, can this be enhanced to use hybrid values(Tag and UUID) both? >> >> 2. Standardization on Physical register use to pass base of HoB data structure. >> >> References: >> >> [1] https://lists.trustedfirmware.org/pipermail/tf-a/2021-April/001069.html >> >> [2] https://linaro-org.zoom.us/rec/share/zjfHeMIumkJhirLCVQYTHR6ftaqyWvF_0klgQn… Passcode: IPn+5q% >> >> >> >> Thanks >> >> >> >> Joanna >> >> >> >> You have been invited to the following event. >> >> TF-A Tech Forum >> >> When >> >> Every 2 weeks from 16:00 to 17:00 on Thursday United Kingdom Time >> >> Calendar >> >> tf-a(a)lists.trustedfirmware.org >> >> Who >> >> • >> >> Bill Fletcher- creator >> >> • >> >> tf-a(a)lists.trustedfirmware.org >> >> more details » >> >> >> >> We run an open technical forum call for anyone to participate and it is not restricted to Trusted Firmware project members. It will operate under the guidance of the TF TSC. >> >> >> >> Feel free to forward this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/ >> >> >> >> Trusted Firmware is inviting you to a scheduled Zoom meeting. >> >> >> >> Join Zoom Meeting >> >> https://zoom.us/j/9159704974 >> >> >> >> Meeting ID: 915 970 4974 >> >> >> >> One tap mobile >> >> +16465588656,,9159704974# US (New York) >> >> +16699009128,,9159704974# US (San Jose) >> >> >> >> Dial by your location >> >> +1 646 558 8656 US (New York) >> >> +1 669 900 9128 US (San Jose) >> >> 877 853 5247 US Toll-free >> >> 888 788 0099 US Toll-free >> >> Meeting ID: 915 970 4974 >> >> Find your local number: https://zoom.us/u/ad27hc6t7h >> >> >> >> ________________________________ >> >> From: François Ozog <francois.ozog(a)linaro.org> >> Sent: 08 April 2021 16:50 >> To: Manish Pandey2 <Manish.Pandey2(a)arm.com> >> Cc: Simon Glass <sjg(a)chromium.org>; Julius Werner <jwerner(a)chromium.org>; Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com>; Boot Architecture Mailman List <boot-architecture(a)lists.linaro.org>; tf-a(a)lists.trustedfirmware.org <tf-a(a)lists.trustedfirmware.org>; U-Boot Mailing List <u-boot(a)lists.denx.de>; Paul Isaac's <paul.isaacs(a)linaro.org>; Ron Minnich <rminnich(a)google.com> >> Subject: Re: [TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages >> >> >> >> Hi >> >> >> >> here is the meeting recording: >> >> https://linaro-org.zoom.us/rec/share/zjfHeMIumkJhirLCVQYTHR6ftaqyWvF_0klgQn… Passcode: IPn+5q%z >> >> >> >> I am really sorry about the confusion related to the meeting time. I have now understood: the Collaborate portal uses a specific calendar which is tied to US/Chicago timezone while the actual Google Calendar is tied to Central Europe timezone. I am going to drop the Collaborate portal and use a shared Google calendar (it should be visible on the trusted-substrate.org page). >> >> >> >> I'll try to summarize what I learnt and highlight my view on what can be next steps in a future mail. >> >> >> >> Cheers >> >> >> >> FF >> >> >> >> On Thu, 8 Apr 2021 at 13:56, Manish Pandey2 via TF-A <tf-a(a)lists.trustedfirmware.org> wrote: >> >> Hi, >> >> >> >> From TF-A project point of view, we prefer to use existing mechanism to pass parameters across boot stages using linked list of tagged elements (as suggested by Julius). It has support for both generic and SiP-specific tags. Having said that, it does not stop partners to introduce new mechanisms suitable for their usecase in platform port initially and later move to generic code if its suitable for other platforms. >> >> >> >> To start with, Ampere can introduce a platform specific implementation of memory tag(speed/NUMA topology etc) which can be evaluated and discussed for generalization in future. The tag will be populated in BL2 stage and can be forwarded to further stages(and to BL33) by passing the head of list pointer in one of the registers. Initially any register can be used but going forward a standardization will be needed. >> >> >> >> The U-boot bloblist mentioned by Simon is conceptually similar to what TF-A is using, if there is consensus of using bloblist/taglist then TF-A tag list may be enhanced to take best of both the implementations. >> >> >> >> One of the potential problems of having structure used in different projects is maintainability, this can be avoided by having a single copy of these structures in TF-A (kept inside "include/export" which intended to be used by other projects.) >> >> >> >> Regarding usage of either UUID or tag, I echo the sentiments of Simon and Julius to keep it simple and use tag values. >> >> >> >> Looking forward to having further discussions on zoom call today. >> >> >> >> Thanks >> >> Manish P >> >> >> >> ________________________________ >> >> From: TF-A <tf-a-bounces(a)lists.trustedfirmware.org> on behalf of Julius Werner via TF-A <tf-a(a)lists.trustedfirmware.org> >> Sent: 25 March 2021 02:43 >> To: Simon Glass <sjg(a)chromium.org> >> Cc: Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com>; Boot Architecture Mailman List <boot-architecture(a)lists.linaro.org>; tf-a(a)lists.trustedfirmware.org <tf-a(a)lists.trustedfirmware.org>; U-Boot Mailing List <u-boot(a)lists.denx.de>; Paul Isaac's <paul.isaacs(a)linaro.org>; Ron Minnich <rminnich(a)google.com> >> Subject: Re: [TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages >> >> >> >> Just want to point out that TF-A currently already supports a (very simple) mechanism like this: >> >> >> >> https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/… >> >> https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/… >> >> https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/… >> >> >> >> It's just a linked list of tagged elements. The tag space is split into TF-A-wide generic tags and SiP-specific tags (with plenty of room to spare if more areas need to be defined -- a 64-bit tag can fit a lot). This is currently being used by some platforms that run coreboot in place of BL1/BL2, to pass information from coreboot (BL2) to BL31. >> >> >> >> I would echo Simon's sentiment of keeping this as simple as possible and avoiding complicated and bloated data structures with UUIDs. You usually want to parse something like this as early as possible in the passed-to firmware stage, particularly if the structure encodes information about the debug console (like it does for the platforms I mentioned above). For example, in BL31 this basically means doing it right after moving from assembly to C in bl31_early_platform_setup2() to get the console up before running anything else. At that point in the BL31 initialization, the MMU and caches are disabled, so data accesses are pretty expensive and you don't want to spend a lot of parsing effort or calculate complicated checksums or the like. You just want something extremely simple where you ideally have to touch every data word only once. >> >> >> >> On Wed, Mar 24, 2021 at 5:06 PM Simon Glass via TF-A <tf-a(a)lists.trustedfirmware.org> wrote: >> >> Hi Harb, >> >> >> >> On Wed, 24 Mar 2021 at 11:39, Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com> wrote: >> >> Hello Folks, >> >> Appreciate the feedback and replies on this. Glad to see that there is interest in this topic. >> >> >> >> I try to address the comments/feedback from Francois and Simon below…. >> >> >> >> @François Ozog – happy to discuss this on a zoom call. I will make that time slot work, and will be available to attend April 8, 4pm CT. >> >> >> >> Note that I’m using the term “HOB” here more generically, as there are typically vendor specific structures beyond the resource descriptor HOB, which provides only a small subset of the information that needs to be passed between the boot phases. >> >> >> >> The whole point here is to provide mechanism to develop firmware that we can build ARM Server SoC’s that support *any* BL33 payload (e.g. EDK2, AptioV, CoreBoot, and maybe even directly boot strapping LinuxBoot at some point). In other-words, we are trying to come up with a TF-A that would be completely agnostic to the implementation of BL33 (i.e. BL33 is built completely independently by a separate entity – e.g. an ODM/OEM). >> >> >> >> Keep in mind, in the server/datacenter market segment we are not building vertically integrated systems with a single entity compiling firmware/software stacks like most folks in TF-A have become use to. There are two categories of higher level firmware code blobs in the server/datacenter model: >> >> “SoC” or “silicon” firmware – in TF-A this may map to BL1, BL2, BL31, and *possibly* one or more BL32 instances >> “Platform” or “board” firmware – in TF-A this may map to BL33 and *possibly* one or more BL32 instances. >> >> >> >> Even the platform firmware stack could be further fragmented by having multiple entities involved in delivering the entire firmware stack: IBVs, ODMs, OEMs, CSPs, and possibly even device vendor code. >> >> >> >> To support a broad range of platform designs with a broad range of memory devices, we need a crisp and clear contract between the SoC firmware that initializes memory (e.g. BL2) and how that platform boot firmware (e.g. BL33) gathers information about what memory that was initialized, at what speeds, NUMA topology, and many other relevant information that needs to be known and comprehended by the platform firmware and eventually by the platform software. >> >> >> >> I understand the versatility of DT, but I see two major problems with DT: >> >> DT requires more complicated parsing to get properties, and even more complex to dynamically set properties – this HOB structures may need to be generated in boot phases where DDR is not available, and therefore we will be extremely memory constrained. >> DT is probably overkill for this purpose – We really just want a list of pointers to simple C structures that code cast (e.g. JEDEC SPD data blob) >> >> >> >> I think that we should not mix the efforts around DT/ACPI specs with what we are doing here, because those specs and concepts were developed for a completely different purpose (i.e. abstractions needed for OS / RTOS software, and not necessarily suitable for firmware-to-firmware hand-offs). >> >> >> >> Frankly, I would personally push back pretty hard on defining SMC’s for something that should be one way information passing. Every SMC we add is another attack vector to the secure world and an increased burden on the folks that have to do security auditing and threat analysis. I see no benefit in exposing these boot/HOB/BOB structures at run-time via SMC calls. >> >> >> >> Please do let me know if you disagree and why. Look forward to discussing on this thread or on the call. >> >> >> >> @Simon Glass - Thanks for the pointer to bloblist. I briefly reviewed and it seems like a good baseline for what we may be looking for. >> >> >> >> That being said, I would say that there is some benefit in having some kind of unique identifiers (e.g. UUID or some unique signature) so that we can tie standardized data structures (based on some future TBD specs) to a particular ID. For example, if the TPM driver in BL33 is looking for the TPM structure in the HOB/BOB list, and may not care about the other data blobs. The driver needs a way to identify and locate the blob it cares about. >> >> >> >> The tag is intended to serve that purpose, although perhaps it should switch from an auto-allocating enum to one with explicit values for each entry and a range for 'local' use. >> >> >> >> I guess we can achieve this with the tag, but the problem with tag when you have eco-system with a lot of parties doing parallel development, you can end up with tag collisions and folks fighting about who has rights to what tag values. We would need some official process for folks to register tags for whatever new structures we define, or maybe some tag range for vendor specific structures. This comes with a lot of pain and bureaucracy. On the other hand, UUID has been a proven way to make it easy to just define your own blobs with *either* standard or vendor specific structures without worry of ID collisions between vendors. >> >> >> >> True. I think the pain is overstated, though. In this case I think we actually want something that can be shared between projects and orgs, so some amount of coordination could be considered a benefit. It could just be a github pull request. I find the UUID unfriendly and not just to code size and eyesight! Trying to discover what GUIDs mean or are valid is quite tricky. E.g. see this code: >> >> >> >> #define FSP_HOB_RESOURCE_OWNER_TSEG_GUID \ >> EFI_GUID(0xd038747c, 0xd00c, 0x4980, \ >> 0xb3, 0x19, 0x49, 0x01, 0x99, 0xa4, 0x7d, 0x55) >> >> (etc.) >> >> >> >> static struct guid_name { >> efi_guid_t guid; >> const char *name; >> } guid_name[] = { >> { FSP_HOB_RESOURCE_OWNER_TSEG_GUID, "TSEG" }, >> { FSP_HOB_RESOURCE_OWNER_FSP_GUID, "FSP" }, >> { FSP_HOB_RESOURCE_OWNER_SMM_PEI_SMRAM_GUID, "SMM PEI SMRAM" }, >> { FSP_NON_VOLATILE_STORAGE_HOB_GUID, "NVS" }, >> { FSP_VARIABLE_NV_DATA_HOB_GUID, "Variable NVS" }, >> { FSP_GRAPHICS_INFO_HOB_GUID, "Graphics info" }, >> { FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID1, "PCD database ea" }, >> { FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID2, "PCD database 9b" }, >> >> (never figured out what those two are) >> >> >> { FSP_HOB_RESOURCE_OWNER_PEIM_DXE_GUID, "PEIM Init DXE" }, >> { FSP_HOB_RESOURCE_OWNER_ALLOC_STACK_GUID, "Alloc stack" }, >> { FSP_HOB_RESOURCE_OWNER_SMBIOS_MEMORY_GUID, "SMBIOS memory" }, >> { {}, "zero-guid" }, >> {} >> }; >> >> static const char *guid_to_name(const efi_guid_t *guid) >> { >> struct guid_name *entry; >> >> for (entry = guid_name; entry->name; entry++) { >> if (!guidcmp(guid, &entry->guid)) >> return entry->name; >> } >> >> return NULL; >> } >> >> >> >> Believe it or not it took a fair bit of effort to find just that small list, with nearly every one in a separate doc, from memory. >> >> >> >> >> >> We can probably debate whether there is any value in GUID/UUID or not during the call… but again, boblist seems like a reasonable starting point as an alternative to HOB. >> >> >> >> Indeed. There is certainly value in both approaches. >> >> >> >> Regards, >> >> Simon >> >> >> >> >> >> Thanks, >> >> --Harb >> >> >> >> From: François Ozog <francois.ozog(a)linaro.org> >> Sent: Tuesday, March 23, 2021 10:00 AM >> To: François Ozog <francois.ozog(a)linaro.org>; Ron Minnich <rminnich(a)google.com>; Paul Isaac's <paul.isaacs(a)linaro.org> >> Cc: Simon Glass <sjg(a)chromium.org>; Harb Abdulhamid OS <abdulhamid(a)os.amperecomputing.com>; Boot Architecture Mailman List <boot-architecture(a)lists.linaro.org>; tf-a(a)lists.trustedfirmware.org >> Subject: Re: [TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages >> >> >> >> +Ron Minnich +Paul Isaac's >> >> >> >> Adding Ron and Paul because I think this interface should be also benefiting LinuxBoot efforts. >> >> >> >> On Tue, 23 Mar 2021 at 11:17, François Ozog via TF-A <tf-a(a)lists.trustedfirmware.org> wrote: >> >> Hi, >> >> >> >> I propose we cover the topic at the next Trusted Substrate zoom call on April 8th 4pm CET. >> >> >> >> The agenda: >> >> ABI between non-secure firmware and the rest of firmware (EL3, S-EL1, S-EL2, SCP) to adapt hardware description to some runtime conditions. >> >> runtime conditions here relates to DRAM size and topology detection, secure DRAM memory carvings, PSCI and SCMI interface publishing. >> >> >> >> For additional background on existing metadata: UEFI Platform Initialization Specification Version 1.7, 5.5 Resource Descriptor HOB >> >> Out of the ResourceType we care about is EFI_RESOURCE_SYSTEM_MEMORY. >> >> This HOB lacks memory NUMA attachment or something that could be related to fill SRAT table for ACPI or relevant DT proximity domains. >> >> HOB is not consistent accros platforms: some platforms (Arm) lists memory from the booting NUMA node, other platforms (x86) lists all memory from all NUMA nodes. (At least this is the case on the two platforms I tested). >> >> >> >> There are two proposals to use memory structures from SPL/BLx up to the handover function (as defined in the Device Tree technical report) which can be U-boot (BL33 or just U-Boot in case of SPL/U-Boot scheme) or EDK2. >> >> I would propose we also discuss possibility of FF-A interface to actually query information or request actions to be done (this is a model actually used in some SoCs with proprietary SMC calls). >> >> >> >> Requirements (to be validated): >> >> - ACPI and DT hardware descriptions. >> >> - agnostic to boot framework (SPL/U-Boot, TF-A/U-Boot, TF-A/EDK2) >> >> - agnostic to boot framework (SPL/U-Boot, TF-A/U-Boot, TF-A/EDK2, TF-A/LinuxBoot) >> >> - at least allows complete DRAM description and "persistent" usage (reserved areas for secure world or other usages) >> >> - support secure world device assignment >> >> >> >> Cheers >> >> >> >> FF >> >> >> >> >> >> On Mon, 22 Mar 2021 at 19:56, Simon Glass <sjg(a)chromium.org> wrote: >> >> Hi, >> >> Can I suggest using bloblist for this instead? It is lightweight, >> easier to parse, doesn't have GUIDs and is already used within U-Boot >> for passing info between SPL/U-Boot, etc. >> >> Docs here: https://github.com/u-boot/u-boot/blob/master/doc/README.bloblist >> Header file describes the format: >> https://github.com/u-boot/u-boot/blob/master/include/bloblist.h >> >> Full set of unit tests: >> https://github.com/u-boot/u-boot/blob/master/test/bloblist.c >> >> Regards, >> Simon >> >> On Mon, 22 Mar 2021 at 23:58, François Ozog <francois.ozog(a)linaro.org> wrote: >> > >> > +Boot Architecture Mailman List <boot-architecture(a)lists.linaro.org> >> > >> > standardization is very much welcomed here and need to accommodate a very >> > diverse set of situations. >> > For example, TEE OS may need to pass memory reservations to BL33 or >> > "capture" a device for the secure world. >> > >> > I have observed a number of architectures: >> > 1) pass information from BLx to BLy in the form of a specific object >> > 2) BLx called by BLy by a platform specific SMC to get information >> > 3) BLx called by BLy by a platform specific SMC to perform Device Tree >> > fixups >> > >> > I also imagined a standardized "broadcast" FF-A call so that any firmware >> > element can either provide information or "do something". >> > >> > My understanding of your proposal is about standardizing on architecture 1) >> > with the HOB format. >> > >> > The advantage of the HOB is simplicity but it may be difficult to implement >> > schemes such as pruning a DT because device assignment in the secure world. >> > >> > In any case, it looks feasible to have TF-A and OP-TEE complement the list >> > of HOBs to pass information downstream (the bootflow). >> > >> > It would be good to start with building the comprehensive list of >> > information that need to be conveyed between firmware elements: >> > >> > information. | authoritative entity | reporting entity | information >> > exchanged: >> > dram | TFA | TFA | >> > <format to be detailed, NUMA topology to build the SRAT table or DT >> > equivalent?> >> > PSCI | SCP | TFA? | >> > SCMI | SCP or TEE-OS | TFA? TEE-OS?| >> > secure SRAM | TFA. | TFA. | >> > secure DRAM | TFA? TEE-OS? | TFA? TEE-OS? | >> > other? | | >> > | >> > >> > Cheers >> > >> > FF >> > >> > >> > On Mon, 22 Mar 2021 at 09:34, Harb Abdulhamid OS via TF-A < >> > tf-a(a)lists.trustedfirmware.org> wrote: >> > >> > > Hello Folks, >> > > >> > > >> > > >> > > I'm emailing to start an open discussion about the adoption of a concept >> > > known as "hand-off blocks" or HOB to become a part of the TF-A Firmware >> > > Framework Architecture (FFA). This is something that is a pretty major >> > > pain point when it comes to the adoption of TF-A in ARM Server SoC’s >> > > designed to enable a broad range of highly configurable datacenter >> > > platforms. >> > > >> > > >> > > >> > > >> > > >> > > What is a HOB (Background)? >> > > >> > > --------------------------- >> > > >> > > UEFI PI spec describes a particular definition for how HOB may be used for >> > > transitioning between the PEI and DXE boot phases, which is a good >> > > reference point for this discussion, but not necessarily the exact solution >> > > appropriate for TF-A. >> > > >> > > >> > > >> > > A HOB is simply a dynamically generated data structure passed in between >> > > two boot phases. This is information that was obtained through discovery >> > > and needs to be passed forward to the next boot phase *once*, with no API >> > > needed to call back (e.g. no call back into previous firmware phase is >> > > needed to fetch this information at run-time - it is simply passed one time >> > > during boot). >> > > >> > > >> > > >> > > There may be one or more HOBs passed in between boot phases. If there are >> > > more than one HOB that needs to be passed, this can be in a form of a "HOB >> > > table", which (for example) could be a UUID indexed array of pointers to >> > > HOB structures, used to locate a HOB of interest (based on UUID). In such >> > > cases, instead of passing a single HOB, the boot phases may rely on passing >> > > the pointer to the HOB table. >> > > >> > > >> > > >> > > This has been extremely useful concept to employ on highly configurable >> > > systems that must rely on flexible discovery mechanisms to initialize and >> > > boot the system. This is especially helpful when you have multiple >> > > >> > > >> > > >> > > >> > > >> > > Why do we need HOBs in TF-A?: >> > > >> > > ----------------------------- >> > > >> > > It is desirable that EL3 firmware (e.g. TF-A) built for ARM Server SoC in >> > > a way that is SoC specific *but* platform agnostic. This means that a >> > > single ARM SoC that a SiP may deliver to customers may provide a single >> > > TF-A binary (e.g. BL1, BL2, BL31) that could be used to support a broad >> > > range of platform designs and configurations in order to boot a platform >> > > specific firmware (e.g. BL33 and possibly even BL32 code). In order to >> > > achieve this, the platform configuration must be *discovered* instead of >> > > statically compiled as it is today in TF-A via device tree based >> > > enumeration. The mechanisms of discovery may differ broadly depending on >> > > the relevant industry standard, or in some cases may have rely on SiP >> > > specific discovery flows. >> > > >> > > >> > > >> > > For example: On server systems that support a broad range DIMM memory >> > > population/topologies, all the necessary information required to boot is >> > > fully discovered via standard JEDEC Serial Presence Detect (SPD) over an >> > > I2C bus. Leveraging the SPD bus, may platform variants could be supported >> > > with a single TF-A binary. Not only is this information required to >> > > initialize memory in early boot phases (e.g. BL2), the subsequent boot >> > > phases will also need this SPD info to construct a system physical address >> > > map and properly initialize the MMU based on the memory present, and where >> > > the memory may be present. Subsequent boot phases (e.g. BL33 / UEFI) may >> > > need to generate standard firmware tables to the operating systems, such as >> > > SMBIOS tables describing DIMM topology and various ACPI tables (e.g. SLIT, >> > > SRAT, even NFIT if NVDIMM's are present). >> > > >> > > >> > > >> > > In short, it all starts with a standardized or vendor specific discovery >> > > flow in an early boot stage (e.g. BL1/BL2), followed by the passing of >> > > information to the next boot stages (e.g. BL31/BL32/BL33). >> > > >> > > >> > > >> > > Today, every HOB may be a vendor specific structure, but in the future >> > > there may be benefit of defining standard HOBs. This may be useful for >> > > memory discovery, passing the system physical address map, enabling TPM >> > > measured boot, and potentially many other common HOB use-cases. >> > > >> > > >> > > >> > > It would be extremely beneficial to the datacenter market segment if the >> > > TF-A community would adopt this concept of information passing between all >> > > boot phases as opposed to rely solely on device tree enumeration. This is >> > > not intended to replace device tree, rather intended as an alternative way >> > > to describe the info that must be discovered and dynamically generated. >> > > >> > > >> > > >> > > >> > > >> > > Conclusion: >> > > >> > > ----------- >> > > >> > > We are proposing that the TF-A community begin pursuing the adoption of >> > > HOBs as a mechanism used for information exchange between each boot stage >> > > (e.g. BL1->BL2, BL2->BL31, BL31->BL32, and BL31->BL33)? Longer term we >> > > want to explore standardizing some HOB structures for the BL33 phase (e.g. >> > > UEFI HOB structures), but initially would like to agree on this being a >> > > useful mechanism used to pass information between each boot stage. >> > > >> > > >> > > >> > > Thanks, >> > > >> > > --Harb >> > > >> > > >> > > >> > > >> > > >> > > >> > > -- >> > > TF-A mailing list >> > > TF-A(a)lists.trustedfirmware.org >> > > https://lists.trustedfirmware.org/mailman/listinfo/tf-a >> > > >> > >> > >> > -- >> > François-Frédéric Ozog | *Director Linaro Edge & Fog Computing Group* >> > T: +33.67221.6485 >> > francois.ozog(a)linaro.org | Skype: ffozog >> > _______________________________________________ >> > boot-architecture mailing list >> > boot-architecture(a)lists.linaro.org >> > https://lists.linaro.org/mailman/listinfo/boot-architecture >> >> >> >> >> -- >> >> François-Frédéric Ozog | Director Linaro Edge & Fog Computing Group >> >> T: +33.67221.6485 >> francois.ozog(a)linaro.org | Skype: ffozog >> >> >> >> -- >> TF-A mailing list >> TF-A(a)lists.trustedfirmware.org >> https://lists.trustedfirmware.org/mailman/listinfo/tf-a >> >> >> >> >> -- >> >> François-Frédéric Ozog | Director Linaro Edge & Fog Computing Group >> >> T: +33.67221.6485 >> francois.ozog(a)linaro.org | Skype: ffozog >> >> >> >> -- >> TF-A mailing list >> TF-A(a)lists.trustedfirmware.org >> https://lists.trustedfirmware.org/mailman/listinfo/tf-a >> >> -- >> TF-A mailing list >> TF-A(a)lists.trustedfirmware.org >> https://lists.trustedfirmware.org/mailman/listinfo/tf-a >> >> >> >> >> -- >> >> François-Frédéric Ozog | Director Linaro Edge & Fog Computing Group >> >> T: +33.67221.6485 >> francois.ozog(a)linaro.org | Skype: ffozog >> >> > > -- > TF-A mailing list > TF-A(a)lists.trustedfirmware.org > https://lists.trustedfirmware.org/mailman/listinfo/tf-a -- TF-A mailing list TF-A(a)lists.trustedfirmware.org https://lists.trustedfirmware.org/mailman/listinfo/tf-a -- TF-A mailing list TF-A(a)lists.trustedfirmware.org https://lists.trustedfirmware.org/mailman/listinfo/tf-a

1 0

[PATCH] Makefile: allow to override python3
by Andrey Zhizhikin 19 May '21

19 May '21

Python3 taken from the PATH causes build issues when pylibfdt bindings are generated with Yocto SDK. Python3 provided as a part of SDK is not compatible with host Python3, therefore binding build breaks with following errors: scripts/dtc/pylibfdt/libfdt_wrap.c:154:11: fatal error: Python.h: No such file or directory 154 | # include <Python.h> | ^~~~~~~~~~ Do not enforce the python3 from the PATH and make it conditionally-assigned so it can be overridden from outside of build system. Keep the default assignment to point to version that is taken from the PATH. Similar fix has been introduced in b48bfc74ee ("tools: allow to override python"), where conditional assignment is used for python executable to address similar build errors. Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin(a)leica-geosystems.com> Cc: Simon Glass <sjg(a)chromium.org> Fixes: e91610da7c ("kconfig: re-sync with Linux 4.17-rc4") --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 404977efa5..f033ab39f2 100644 --- a/Makefile +++ b/Makefile @@ -408,7 +408,7 @@ AWK = awk PERL = perl PYTHON ?= python PYTHON2 = python2 -PYTHON3 = python3 +PYTHON3 ?= python3 DTC ?= $(objtree)/scripts/dtc/dtc CHECK = sparse -- 2.25.1

3 2

Re: [PATCH] cli: slighly more clear error messages
by Tom Rini 19 May '21

19 May '21

On Tue, May 04, 2021 at 01:45:59AM -0700, peng.wang(a)smartm.com wrote: > This patch tries to distinguish two error messages. > > Signed-off-by: peng.wang(a)smartm.com <peng.wang(a)smartm.com> Applied to u-boot/master, thanks! -- Tom

1 0

[PATCH] MAINTAINERS, git-mailrc: socfpga: Update email address for Ley Foon
by Ley Foon Tan 19 May '21

19 May '21

My mail address doesn't work any longer, change to gmail. Signed-off-by: Ley Foon Tan <ley.foon.tan(a)intel.com> --- MAINTAINERS | 2 +- doc/git-mailrc | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 20092cb36740..fc1529ff3c1f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -118,7 +118,7 @@ F: cmd/arm/ ARM ALTERA SOCFPGA M: Marek Vasut <marex(a)denx.de> M: Simon Goldschmidt <simon.k.r.goldschmidt(a)gmail.com> -M: Ley Foon Tan <ley.foon.tan(a)intel.com> +M: Ley Foon Tan <lftan.linux(a)gmail.com> S: Maintainted T: git https://source.denx.de/u-boot/custodians/u-boot-socfpga.git F: arch/arm/mach-socfpga/ diff --git a/doc/git-mailrc b/doc/git-mailrc index f520ff89b390..34f936f4d83c 100644 --- a/doc/git-mailrc +++ b/doc/git-mailrc @@ -29,7 +29,7 @@ alias jaehoon Jaehoon Chung <jh80.chung(a)samsung.com> alias jagan Jagan Teki <jagan(a)amarulasolutions.com> alias jhersh Joe Hershberger <joe.hershberger(a)ni.com> alias kevery Kever Yang <kever.yang(a)rock-chips.com> -alias leyfoon Ley Foon Tan <ley.foon.tan(a)intel.com> +alias leyfoon Ley Foon Tan <lftan.linux(a)gmail.com> alias lokeshvutla Lokesh Vutla <lokeshvutla(a)ti.com> alias lukma Lukasz Majewski <lukma(a)denx.de> alias macpaul Macpaul Lin <macpaul(a)andestech.com> -- 2.26.2

2 1

[PATCH] Makefile: Handle building in a very old build directory
by Simon Glass 19 May '21

19 May '21

Versions of U-Boot before 2014.01 created a symlink from include/asm to the architecture-specific header directory. If an ARM board is build with that old version, then sandbox is built on a more recent version (both with in-tree builds), the include/asm symlink confuses the build system. It picks up the ARM headers when it should be using the sandbox ones. Since 2014 U-Boot has only created a symlink inside the include/asm/ directory and only for out-of-tree builds. So for in-tree builds it does not expect to see an include/asm symlink. It is not removed by 'make mrproper'. It does show up with 'git status' but is easy enough to miss. Add include/asm to the files to remove with 'make mkproper'. For recent U-Boot builds this has no effect, since include/asm is a directory, not a file. If the include/asm symlink is there, it will be removed. Reported-by: Marek Szyprowski <m.szyprowski(a)samsung.com> Signed-off-by: Simon Glass <sjg(a)chromium.org> --- Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index ebbedb1fb1a..9f4b226a5c5 100644 --- a/Makefile +++ b/Makefile @@ -2043,9 +2043,11 @@ CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \ # Directories & files removed with 'make mrproper' MRPROPER_DIRS += include/config include/generated spl tpl \ .tmp_objdiff doc/output + +# Remove include/asm symlink created by U-Boot before v2014.01 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ - drivers/video/fonts/*.S + drivers/video/fonts/*.S include/asm # clean - Delete most, but leave enough to build external modules # -- 2.31.1.607.g51e8a6a459-goog

2 1

[PATCH v2] psci: rename psci_features function
by Igor Opaniuk 19 May '21

19 May '21

From: Igor Opaniuk <igor.opaniuk(a)foundries.io> s/psci_features/request_psci_features/g for the case when both ARCH_SUPPORT_PSCI=y and ARM_PSCI_FW=y, that leads to these compilation issues: drivers/firmware/psci.c:69:12: error: conflicting types for 'psci_features' 69 | static int psci_features(u32 psci_func_id) | ^~~~~~~~~~~~~ In file included from drivers/firmware/psci.c:23: ./arch/arm/include/asm/system.h:548:5: note: previous declaration of 'psci_features' was here 548 | s32 psci_features(u32 function_id, u32 psci_fid); | ^~~~~~~~~~~~~ Tested-by: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> Reported-by: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> Fixes: b7135b034f ("psci: add features/reset2 support") Signed-off-by: Igor Opaniuk <igor.opaniuk(a)foundries.io> --- Changes in v2: - Renamed function name (request_psci_features instead of psci_features_req) - Added T-b and Fixes tags drivers/firmware/psci.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c index be57552aba..6755e74e3f 100644 --- a/drivers/firmware/psci.c +++ b/drivers/firmware/psci.c @@ -66,7 +66,7 @@ unsigned long __efi_runtime invoke_psci_fn return res.a0; } -static int psci_features(u32 psci_func_id) +static int request_psci_features(u32 psci_func_id) { return invoke_psci_fn(PSCI_1_0_FN_PSCI_FEATURES, psci_func_id, 0, 0); @@ -85,7 +85,8 @@ static bool psci_is_system_reset2_supported(void) ver = psci_0_2_get_version(); if (PSCI_VERSION_MAJOR(ver) >= 1) { - ret = psci_features(PSCI_FN_NATIVE(1_1, SYSTEM_RESET2)); + ret = request_psci_features(PSCI_FN_NATIVE(1_1, + SYSTEM_RESET2)); if (ret != PSCI_RET_NOT_SUPPORTED) return true; -- 2.25.1

2 1

[PATCH 00/26] imx: update for i.MX8M
by Peng Fan (OSS) 18 May '21

18 May '21

From: Peng Fan <peng.fan(a)nxp.com> This patchset is to upstream NXP downstream patches targeting next release: 2021.07. - Enviorment cleanup - ddr script update for ddr4/lpddr4 boards - update fuse path - Support i.MX8MQ B2 - Add i.MX8MN 11*11 variant - Change pca9450 API accepting address Jacky Bai (1): imx8mn: Update the DDR4 timing script on imx8mn ddr4 evk Peng Fan (12): tools: imx image: fix write warning imx8mm/p: remove boot.cmd imx8mm_evk: add/cleanup variable for distro imx8mp_evk: add/cleanup variable for distro imx8mp_evk: spl: clean up including headers imx8mp_evk: Increase VDD_ARM to 0.95v Overdrive voltage power: pca9450: add a new parameter for power_pca9450_init imx8mn_evk: drop duplicated code imx8mn: Add LPDDR4 EVK board support imx: logos: use NXP logo imx8m: soc: update fuse path arch: mach-imx: imx8m: fix unique_id read error for imx8mp Sherry Sun (1): imx8mp: ddr: Add inline ECC feature support Ye Li (11): imx8mm_evk: Update to latest LPDDR4 script imx8mm_evk: Switch to new imx8mm evk board imx8mp_evk: Update LPDDR4 timing for new FW 202006 imx8mp_evk: Update LPDDR4 refresh time imx8mn: Add low drive mode support for DDR4/LPDDR4 EVK imx8mn: Add support for 11x11 UltraLite part number imx8m: Update thermal and PMU kernel nodes for dual/single cores imx8m: ddr: Disable CA VREF Training for LPDDR4 iMX8MQ: Recognize the B2 revision misc: ocotp: Update OCOTP driver for iMX8MQ B2 imx8mq_evk: Applying default LPDDR4 script for B2 haidong.zheng (1): imx8mp: refine power on imx8mp board arch/arm/dts/Makefile | 1 + arch/arm/dts/imx8mm-evk-u-boot.dtsi | 4 +- arch/arm/dts/imx8mm-evk.dtsi | 127 +- arch/arm/dts/imx8mn-ddr4-evk-u-boot.dtsi | 3 + arch/arm/dts/imx8mn-evk-u-boot.dtsi | 26 + arch/arm/dts/imx8mn-evk.dts | 128 ++ arch/arm/include/asm/arch-imx/cpu.h | 12 +- arch/arm/include/asm/arch-imx8m/imx-regs.h | 11 + arch/arm/include/asm/mach-imx/sys_proto.h | 6 +- arch/arm/mach-imx/cpu.c | 8 +- arch/arm/mach-imx/imx8m/Kconfig | 6 + arch/arm/mach-imx/imx8m/soc.c | 183 +- board/freescale/imx8mm_evk/boot.cmd | 35 - board/freescale/imx8mm_evk/lpddr4_timing.c | 692 +++---- board/freescale/imx8mm_evk/spl.c | 33 +- board/freescale/imx8mn_evk/Kconfig | 6 +- board/freescale/imx8mn_evk/Makefile | 6 + board/freescale/imx8mn_evk/ddr4_timing.c | 1057 +++++------ board/freescale/imx8mn_evk/ddr4_timing_ld.c | 1057 +++++++++++ board/freescale/imx8mn_evk/lpddr4_timing.c | 1587 +++++++++++++++++ board/freescale/imx8mn_evk/lpddr4_timing_ld.c | 1440 +++++++++++++++ board/freescale/imx8mn_evk/spl.c | 50 +- board/freescale/imx8mp_evk/boot.cmd | 25 - board/freescale/imx8mp_evk/lpddr4_timing.c | 372 +++- board/freescale/imx8mp_evk/spl.c | 38 +- board/freescale/imx8mq_evk/spl.c | 2 +- board/phytec/phycore_imx8mp/spl.c | 2 +- configs/imx8mm_evk_defconfig | 2 +- configs/imx8mn_evk_defconfig | 93 + drivers/ddr/imx/imx8m/Kconfig | 8 + drivers/misc/mxc_ocotp.c | 2 +- drivers/power/pmic/pmic_pca9450.c | 4 +- include/configs/imx8mm_evk.h | 8 +- include/configs/imx8mp_evk.h | 8 +- include/power/pca9450.h | 2 +- tools/imx8image.c | 2 +- tools/imx8mimage.c | 2 +- tools/logos/freescale.bmp | Bin 46738 -> 47670 bytes 38 files changed, 5745 insertions(+), 1303 deletions(-) create mode 100644 arch/arm/dts/imx8mn-evk-u-boot.dtsi create mode 100644 arch/arm/dts/imx8mn-evk.dts delete mode 100644 board/freescale/imx8mm_evk/boot.cmd create mode 100644 board/freescale/imx8mn_evk/ddr4_timing_ld.c create mode 100644 board/freescale/imx8mn_evk/lpddr4_timing.c create mode 100644 board/freescale/imx8mn_evk/lpddr4_timing_ld.c delete mode 100644 board/freescale/imx8mp_evk/boot.cmd mode change 100644 => 100755 board/freescale/imx8mp_evk/lpddr4_timing.c create mode 100644 configs/imx8mn_evk_defconfig -- 2.30.0

8 41