Commit Graph

52156 Commits

Author SHA1 Message Date
Tom Rini
26699998e9 Patch queue for efi - 2018-08-21
A few fixes for 2018.09. Most noticable are:
 
   - unbreak x86 target (-fdata-section fallout)
   - fix undefined behavior in a few corner cases
   - make Jetson TX1 boot again
   - RTS fixes
   - implement reset for simple output
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Merge tag 'signed-efi-2018.09' of git://github.com/agraf/u-boot

Patch queue for efi - 2018-08-21

A few fixes for 2018.09. Most noticable are:

  - unbreak x86 target (-fdata-section fallout)
  - fix undefined behavior in a few corner cases
  - make Jetson TX1 boot again
  - RTS fixes
  - implement reset for simple output
2018-08-21 13:15:21 -04:00
Stephen Warren
3d186cf3f3 ARM: tegra: avoid more operations in non-secure world
A secure monitor that runs before U-Boot, and hence causes U-Boot to run
in non-secure world, must implement a few operations that U-Boot
otherwise implements when running in secure world. Fix U-Boot to skip
these operations when running in non-secure world. In particular:

- The secure monitor must provide the LP0 resume code and own LP0
  configuration in order to maintain security, so must initialize all
  the PMC scratch registers used by the boot ROM during LP0 resume.
  Consequently, U-Boot should not attempt to clear those registers,
  since the register accesses will fail or cause an error.

- The secure monitor owns system security, and so is responsible for
  configuring security-related items such as the VPR.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-08-21 08:41:00 -07:00
Nicolas Chauvet
0de68cf3f8 arm: tegra: Restore host1x/dc dm-pre-reloc properties
Since commit f2faffecb0, tegra: Convert to use binman
the dm-pre-reloc properties are removed.

This leads U-Boot not to enable the display on paz00

This patch restore the dm-pre-reloc properties allowing
the bootloader to output to the display panel

v4: - Spell project name as appropriate
v3: - Fix few typos
v2: - Add more characters to commit hash

Signed-off-by: Nicolas Chauvet <kwizart@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-08-21 08:34:55 -07:00
Jean-Jacques Hiblot
49c752c93a cmd: Add bind/unbind commands to bind a device to a driver from the command line
In some cases it can be useful to be able to bind a device to a driver from
the command line.
The obvious example is for versatile devices such as USB gadget.
Another use case is when the devices are not yet ready at startup and
require some setup before the drivers are bound (ex: FPGA which bitsream is
fetched from a mass storage or ethernet)

usage example:

bind usb_dev_generic 0 usb_ether
unbind usb_dev_generic 0 usb_ether
or
unbind eth 1

bind /ocp/omap_dwc3@48380000/usb@48390000 usb_ether
unbind /ocp/omap_dwc3@48380000/usb@48390000

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-08-21 16:21:37 +02:00
Jean-Jacques Hiblot
3be9bcb048 device: expose the functions used to remove and unbind children of a device
Also add a 'drv' parameter to filter the children to remove/unbind.
Exporting those functions is a preparatory work for the addition of the
bind/unbind commands.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-08-21 16:21:37 +02:00
Jean-Jacques Hiblot
7ec9181d6a dm: convert device_get_global_by_of_offset() to device_get_global_by_ofnode()
Also add device_find_global_by_ofnode() that also find a device based on
the OF node, but doesn't probe the device.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-08-21 16:21:37 +02:00
Jean-Jacques Hiblot
999b204383 dm: print the index of the device when dumping the dm tree
Command "dm tree" dumps the devices with class, driver, name information.
Add the index of the device in the class too, because the information is
useful for the bind/unbind commands.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-21 16:21:37 +02:00
Jean-Jacques Hiblot
e7c865620e uclass: Add dev_get_uclass_index() to get the uclass/index of a device
This function is the reciprocal of uclass_find_device().
It will be used to print the index information in dm tree dump.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-08-21 16:21:37 +02:00
Jean-Jacques Hiblot
c3211708cf net: eth-uclass: Fix for DM USB ethernet support
When a USB ethernet device is halted, the device driver is removed. When
this happens the uclass private memory is freed and uclass_priv is set to
NULL. This causes a data abort when uclass_priv->state is then set to
ETH_STATE_PASSIVE.

Fix it by checking if uclass_priv is NULL before setting uclass_priv->state

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-08-21 16:21:37 +02:00
Jean-Jacques Hiblot
c73251eac1 usb: gadget: Add bcdDevice for the DWC3 USB Gadget Controller
Add an entry in usb_gadget_controller_number() for the DWC3 gadget
controller. Without it, it is not possible to bind the USB Ethernet driver.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-08-21 16:21:37 +02:00
Adam Ford
1a35526e1d usb: musb-new: omap2430: Enable DM_USB and OF support
With upcoming changes that require CONFIG_BLK, this broke
USB Mass Storage on the OMAP3 boards because if CONFIG_BLK is
enabled, it assumes that DM_USB is enabled, but it wasn't yet
available on omap3 and omap4 boards.

This patch converts the OMAP2430 MUSB glue to support DM_USB and
extracts the necessary information based on the device tree.

It's based on the ti-musb driver, but there are enough significant
differences in both the architecture and device tree entires between
am33xx and OMAP3/OMAP4, that I think it makes sense to continue to
keep the separate.

Per doc/driver-model/usb-info.txt, the USB gadget stuff hasn't
migrated to DM_USB yet, so this only supports USB Host for now.

Users wanting USB Gadgets will need to disable DM_USB and leave
it the old way for now.

Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-21 16:21:37 +02:00
Adam Ford
10d5ed9a54 usb: musb-new: omap2430: Remove dead code
A bunch of code was encapsulated in #ifdef's whether or not
it is building or for U-Boot.  Since this code is always building
for U-Boot, this patch removes the dead code.

Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-21 16:21:37 +02:00
Sam Protsenko
aa51579f9a cmd: fastboot: Validate user input
In case when user provides '-' as USB controller index, like this:

    => fastboot -

data abort occurs in strcmp() function in do_fastboot(), here:

    if (!strcmp(argv[1], "udp"))

(tested on BeagleBone Black).

That's because argv[1] is NULL when user types in the '-', and null
pointer dereference occurs in strcmp() (which is ok according to C
standard specification). So we must validate user input to prevent such
behavior.

While at it, check also the result of strtoul() function and handle
error cases properly.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2018-08-21 16:21:37 +02:00
Eugeniu Rosca
dbb148b22c cmd: efi: Clarify calculation precedence for '&' and '?'
Fix cppcheck complaint:
[cmd/efi.c:173]: (style) Clarify calculation precedence for '&' and '?'.

Fixes: f1a0bafb58 ("efi: Add a command to display the memory map")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-21 00:04:24 +02:00
Eugeniu Rosca
c3a40cce2a efi: Add EFI_MEMORY_{NV, MORE_RELIABLE, RO} attributes
With this update, the memory attributes are in sync with Linux
kernel v4.18-rc4. They also match page 190 of UEFI 2.7 spec [1].

[1] http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-21 00:03:56 +02:00
Eugeniu Rosca
9b89183b97 efi: Fix truncation of constant value
Starting with commit 867a6ac86d ("efi: Add start-up library code"),
sparse constantly complains about truncated constant value in efi.h:

include/efi.h:176:35: warning: cast truncates bits from constant value (8000000000000000 becomes 0)

This can get quite noisy, preventing real issues to be noticed:

$ make defconfig
*** Default configuration is based on 'sandbox_defconfig'
$ make C=2 -j12 2>&1 | grep truncates | wc -l
441

After the patch is applied:
$ make C=2 -j12 2>&1 | grep truncates | wc -l
0
$ sparse --version
v0.5.2

Following the suggestion of Heinrich Schuchardt, instead of only
fixing the root-cause, I replaced the whole enum of _SHIFT values
by ULL defines. This matches both the UEFI 2.7 spec and the Linux
kernel implementation.

Some ELF size comparison before and after the patch (gcc 7.3.0):

efi-x86_payload64_defconfig:
text    data    bss     dec       hex   filename
407174  29432   278676  715282    aea12 u-boot.old
407152  29464   278676  715292    aea1c u-boot.new
-22     +32     0       +10

efi-x86_payload32_defconfig:
text    data    bss     dec       hex   filename
447075  30308   280076  757459    b8ed3 u-boot.old
447053  30340   280076  757469    b8edd u-boot.new
-22     +32     0       +10

Fixes: 867a6ac86d ("efi: Add start-up library code")
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-21 00:03:01 +02:00
Heinrich Schuchardt
9d12daff6c efi_loader: EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset()
Implement the reset service of the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.

This should resolve the error reported by the SCT in
Protocol/SimpleTextOut/BlackBoxTest/SimpleTextOutBBTestFunction_uefi.c:639

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-21 00:01:01 +02:00
Tom Rini
b71d9e8b38 Merge branch 'master' of git://git.denx.de/u-boot-sunxi 2018-08-20 13:41:56 -04:00
Tom Rini
3313e90844 Merge git://git.denx.de/u-boot-x86 2018-08-20 13:41:37 -04:00
Lukasz Majewski
f008e26008 display5: Introduce fitImg_fw_sz variable
This cosmetic change allow easy adjustment of the to-load kernel size if
needed.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
2018-08-20 13:11:08 -04:00
Heinrich Schuchardt
54bfba2704 efi_selftest: correct block device unit test
The UEFI specification mandates that the create flag is only used in
conjunction with both the read and the write flag.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:47:07 +02:00
Heinrich Schuchardt
bcfb0e22a8 efi_loader: document runtime functions
Add comments for runtime service functions.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:43:31 +02:00
Heinrich Schuchardt
a39f39cdd8 efi_loader: update runtime services table crc32
The crc32 of the runtime services table must be updated after detaching.

efi_update_table_header_crc32() must be __efi_runtime. So move it to
efi_runtime.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:43:12 +02:00
Heinrich Schuchardt
483dbab9f9 lib: crc32: mark function crc32() as __efi_runtime
The function crc32() is needed by the EFI subsystem at runtime. So it has
to be linked into the runtime section together with all dependencies.

Eliminate empty defines local and ZEXPORT.

Mark variables as static which are not exported.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:42:36 +02:00
Heinrich Schuchardt
fa995d0d94 efi_loader: avoid NULL dereference in efi_get_memory_map()
We should only dereference parameter memory_map_size after checking that
it is valid.

Fixes: 8e835554b3 ("efi_loader: check parameters of GetMemoryMap")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:41:09 +02:00
Jagan Teki
d8024074e4 board: sunxi: Remove unused local variables
variables buf from board_mmc_init, and ret from misc_init_r
were unused on the functions, so remove it.

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-08-20 18:10:43 +05:30
AKASHI Takahiro
3748ed908f efi_loader: fix a parameter check at CreateEvent()
The commit 21b3edfc96 ("efi_loader: check parameters of CreateEvent")
enforces a strict parameter check at CreateEvent(). On the other hand,
UEFI specification version 2.7, section 7.1, says:

    The EVT_NOTIFY_WAIT and EVT_NOTIFY_SIGNAL flags are exclusive. If
    neither flag is specified, the caller does not require any notification
    concerning the event and the NotifyTpl, NotifyFunction, and
    NotifyContext parameters are ignored.

So the check should be mitigated so as to comply with the specification.
Without this patch, EDK2's Shell.efi won't be started.

Fixes: 21b3edfc96 ("efi_loader: check parameters of CreateEvent")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:39:35 +02:00
Alexander Graf
122347f366 riscv: Include bss subsections in linker script
When we build with -fdata-sections we may end up with bss subsections. Our
linker script explicitly lists only a single consecutive bss section though.

Adapt the statement to also include subsections.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:25:59 +02:00
Alexander Graf
1acbd0ea99 x86: Enable -fdata-sections always
We left -fdata-sections disabled for x86_64 before because we encountered
random bugs that were at that time inexplicable.

Turns out this really was just side effects of missing .bss* statements
in the linker scripts. With those fixed, we can enable data sections for all
targets.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:20:53 +02:00
Alexander Graf
6331cb2165 x86: Include bss subsections in linker script
When we build with -fdata-sections we may end up with bss subsections. Our
linker script explicitly lists only a single consecutive bss section though.

Adapt the statement to also include subsections.

This fixes booting efi-x86_app_defconfig.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 14:17:43 +02:00
Icenowy Zheng
7ac5f33483 sunxi: fix sid base address macro name for H6
In the current H6 CPU memory space code, the SUNXI in the macro name of
the SID address base is wrongly spelled as SNUXI, which leads to SID
readout not working.

Fix this macro name.

Fixes: 55f6b1c351c9 ("sunxi: add basic memory map definitions of H6 SoC")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2018-08-20 17:22:59 +05:30
Jagan Teki
044fa00387 configs: sun7i: Fix to use emmc dts for OLinuXino_MICRO-eMMC
A20 OLinuXino Micro eMMC board has emmc with mmc2 slot
so use proper dts, sun7i-a20-olinuxino-micro-emmc.dts

Cc: Stefan Mavrodiev <stefan@olimex.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-08-20 17:21:45 +05:30
Pierre-Jean Texier
612e99123b doc: FIT image: fix typo
Fix typo in beaglebone verified boot documentation.

Signed-off-by: Pierre-Jean Texier <texier.pj2@gmail.com>
2018-08-20 07:21:29 -04:00
Sam Protsenko
d03e76af5c cmd: Add dtimg command
dtimg command allows user to work with Android DTB/DTBO image format.
Such as, getting the address of desired DTB/DTBO file, printing the dump
of the image in U-Boot shell, etc.

This command is needed to provide Android boot with new Android DT image
format further.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-08-20 07:21:29 -04:00
Sam Protsenko
c044733457 common: Add support for Android DT image
Android documentation recommends new image format for storing DTB/DTBO
files: [1]. To support that format, this patch adds helper functions for
Android DTB/DTBO format. In image-android-dt.* files you can find helper
functions to work with Android DT image format, such us routines for:
    - printing the dump of image structure
    - getting the address and size of desired dtb/dtbo file

This patch uses dt_table.h file, that was added in commit 643cefa4d8
("Import Android's dt_table.h for DT image format") by Alex Deymo.

[1] https://source.android.com/devices/architecture/dto/partitions

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-08-20 07:21:29 -04:00
Andreas Dannenberg
287c04e11a fs/fat: debug-print file read position during file_fat_read_at()
In order to make the debug print in file_fat_read_at() a tad more useful,
show the offset the file is being read at alongside the filename.

Suggested-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-08-20 07:21:28 -04:00
Simon Goldschmidt
94cb986e5e spl: fix debug print in spl_common_init()
spl_common_init() debug-prints "spl_early_init()\n" but it is
called both from spl_early_init() and spl_init().

Fix this by moving the debug() statement to the calling functions
which now print their name.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-08-20 07:21:28 -04:00
Adam Ford
09d841176d ARM: da8xxevm: README: Add NOR booting instructions
The da850evm with its UI expander board can boot XIP boot from
NOR flash.  This adds the instructions to the readme. file.

Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-20 07:21:28 -04:00
Adam Ford
c4fa049a12 ARM: da850evm: Enable SPL_SYS_MALLOC_SIMPLE
The SPL space is limited.  In order to try to enable DM in SPL,
we need more space. When combined wtih TINY_PRINTF, this reduces
the size of SPL by 6.5k

Original:

   text	   data	    bss	    dec	    hex	filename
  20760	   1216	     80	  22056	   5628	spl/u-boot-spl

Tiny Printf
   text	   data	    bss	    dec	    hex	filename
  17947	   1216	     80	  19243	   4b2b	spl/u-boot-spl

Malloc Simple + Tiny Printf
   text	   data	    bss	    dec	    hex	filename
  15187	    176	     28	  15391	   3c1f	spl/u-boot-spl

Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-20 07:21:27 -04:00
Adam Ford
f09d831557 ARM: da850evm: Enable USE_TINY_PRINTF
The SPL space is limited.  In order to try to enable DM in SPL,
we need more space. This reduces the size of SPL by ~2.7K

before:
   text	   data	    bss	    dec	    hex	filename
  20760	   1216	     80	  22056	   5628	spl/u-boot-spl
after:
   text	   data	    bss	    dec	    hex	filename
  17947	   1216	     80	  19243	   4b2b	spl/u-boot-spl

Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-20 07:21:27 -04:00
Adam Ford
391328dc30 configs: da850evm: Remove DM_I2C_COMPAT
Since using DM_I2C_COMPAT throws a warning during compilation,
and it isn't really needed any longer, so this patch removes
this feature and shrinks the code a bit.

from:
   text	   data	    bss	    dec	    hex	filename
 343326	  13388	 123448	 480162	  753a2	u-boot

to:
   text	   data	    bss	    dec	    hex	filename
 342924	  13380	 123440	 479744	  75200	u-boot

Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-20 07:21:27 -04:00
Heinrich Schuchardt
07240da293 efi_loader: relocate pointer to tables
When applying a virtual memory map we have to update the pointer to the
list of configuration tables.

Fixes: 4182a129ef ("efi_loader: allocate configuration table array")
Reported-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 11:39:19 +02:00
Stephen Warren
ccfc78b820 Revert "efi_loader: efi_allocate_pages is too restrictive"
This reverts commit aa909462d0. This change
caused "dhcp filename" to crash the system on p2371-2180 (Jetson TX1), for
example when running test/py.

Reverting this change isn't optimal, but at least restores TX1 to a working
state. In the future, we should:

a) Fix whatever problem causes the crash with this patch applied. This
needs further discussion, so isn't something we can immediately do.

b) Undo the revert; re-apply the original patch to efi_allocate_pages.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 11:39:19 +02:00
Alexander Graf
18e684dd4c sandbox: Move BSS after EFI sections
Something went wrong when writing the sandbox linker scripts and so we
ended up with a .bss section marker right before the efi runtime sections.

That obviously is a terrible idea, as it may result in overwriting efi
runtime code and data. So let's move the .bss identifier behind the efi
sections.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-08-20 11:39:19 +02:00
Bin Meng
7bdf39cfaf x86: efi: payload: Add default TSC frequency in the device tree
It was observed sometimes U-Boot as the EFI payload fails to boot on
QEMU. This is because TSC calibration fails with no valid frequency.
This adds default TSC frequency in the device tree.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-20 13:52:49 +08:00
Bin Meng
864915561b x86: coreboot: Add default TSC frequency in the device tree
It was observed sometimes U-Boot as the coreboot payload fails to
boot on QEMU. This is because TSC calibration fails with no valid
frequency. This adds default TSC frequency in the device tree.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2018-08-20 13:52:49 +08:00
Bin Meng
165db7c426 x86: tsc: Try hardware calibration first
At present if TSC frequency is provided in the device tree, it takes
precedence over hardware calibration result. This swaps the order to
try hardware calibration first and uses device tree as last resort.

This can be helpful when a generic dts (eg: coreboot/efi payload) is
supposed to work on as many hardware as possible, including emulators
like QEMU where TSC hardware calibration sometimes fails.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2018-08-20 13:52:49 +08:00
Bin Meng
1cf6825a68 x86: dts: Remove coreboot_fb.dtsi
There is no need to keep a separate coreboot_fb.dtsi since now we
have a generic coreboot payload dts.

While we are here, this also remove the out-of-date description in
the documentation regarding to coreboot framebuffer driver with
U-Boot loaded as a payload from coreboot. As the testing result with
QEMU 2.5.0 shows, the driver just works like a charm.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-20 13:52:49 +08:00
Bin Meng
6e71a6ab2d x86: Remove support for Advantech SOM-6896
Now that we have generic coreboot payload support, remove the
dedicated support for Advantech SOM-6896.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2018-08-20 13:52:49 +08:00
Bin Meng
ceeee8f7b5 x86: coreboot: Add generic coreboot payload support
Currently building U-Boot as the coreboot payload requires user
to change the build configuration for a specific board during
menuconfig process. This uses the board's native device tree
to configure the hardware. For example, the device tree provides
PCI address range for the PCI host controller and U-Boot will
re-program all PCI devices' BAR to be within this range. In order
to make sure we don't mess up the hardware, we should guarantee
the range matches what coreboot programs the chipset.

But we really should make the coreboot payload support easier.
Just like EFI payload, we can create a generic coreboot payload
for all x86 boards as well. The payload is configured to include
as many generic drivers as possible. All stuff that touches low
level initialization are not allowed as such is the coreboot's
responsibility. Platform specific drivers (like gpio, spi, etc)
are not included.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2018-08-20 13:52:06 +08:00