Commit graph

63625 commits

Author SHA1 Message Date
Patrick Delaunay
7ae22d7278 arm: stm32mp: bsec: add permanent lock support in bsec driver
Add BSEC lock access (read / write) at 0xC0000000 offset of misc driver.
The write access only available for Trusted boot mode, based on new
SMC STM32_SMC_WRLOCK_OTP.

With the fuse command, the permanent lock status is accessed with
0x10000000 offset (0xC0000000 - 0x8000000 for OTP sense/program
divided by u32 size), for example:

Read lock status of fuse 57 (0x39)

  STM32MP> fuse sense 0 0x10000039 1

  Sensing bank 0:

  Word 0x10000039: 00000000

Set permanent lock of fuse 57 (0x39)

  STM32MP> fuse prog 0 0x10000039 1

  Sensing bank 0:

  Word 0x10000039: 00000000

WARNING: the OTP lock is updated only after reboot

WARING: Programming lock or fuses is an irreversible operation!
        This may brick your system.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
df2d1b8fc4 arm: stm32mp: bsec: remove unneeded test
Remove the test offs < 0 , as offs is unsigned.

This patch solves the warnings when compiling with W=1
on stm32mp1 board:

In function ‘stm32mp_bsec_read’:
arch/arm/mach-stm32mp/bsec.c:368:11: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
  368 |  if (offs < 0 || (offs % 4) || (size % 4))
      |           ^
In function ‘stm32mp_bsec_write’:
arch/arm/mach-stm32mp/bsec.c:405:11: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
  405 |  if (offs < 0 || (offs % 4) || (size % 4))
      |           ^

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
fdabacecf0 board: stm32mp1: read OTP in command stboard
Read the value directly from the OTP and no more of the shadows
to avoid the need of reboot after stboard command to have correct value.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
16aa3e3fdc board: stm32mp1: update command stboard on misc_write result
Update management of misc_write, which now return length of data
after the commit 8729b1ae2c ("misc: Update read() and write()
methods to return bytes xfered")

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Tom Rini
2738f0edea Merge tag 'ti-v2020.07-next' of https://gitlab.denx.de/u-boot/custodians/u-boot-ti into next
K3 J721E:
* OSPI boot support
* Support for loading remote cores in R5 SPL
* PMIC ESM Support
* Minor fixes for R5F and C7x remoteproc drivers

K3 AM654:
* Update AVS class 0 voltages.
* Add I2C nodes

DRA7xx/AM57xx:
* Fixed Android boot on AM57xx

AM33/AM43/Davinci:
* switch to driver model for the net and mdio driver for baltos
* Add DM/DTS support for omap video driver
* Enable fastboot on am335x-evm
2020-03-17 11:59:58 -04:00
Tom Rini
b180e32ea3 Merge tag '20200316-for-next' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c into next
i2c: for next
- i2c-gpio: make it possible to run deblock sequence on driver probe
- i2c-gpio: add clock stretching support
- updates the Designware I2C driver for high speed mode,
  fix a bug and add some improvements.
- add DM support for memory based bootcounter driver
2020-03-17 11:33:59 -04:00
Tom Rini
552c3d4c2d Merge branch '2020-03-16-kbuild-etc-resync-v4.18' into next
- Update our Kbuild / Kconfig and relate functionality to be in line
  with the Linux kernel v4.18 release.
2020-03-17 09:54:45 -04:00
Tom Rini
33b40389ea configs: Drop '$(ARCH)' usage in CONFIG_SPL_LDSCRIPT
In a few boards we had overridden, intentionally, the value used for
CONFIG_SPL_LDSCRIPT.  However, rather than using the ARCH value (arm)
they used the $(ARCH) variable in make.  This doesn't help really, so
switch to a hard-coded value.

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-03-16 18:54:18 -04:00
Tom Rini
5972ff077e kconfig / kbuild: re-sync with Linux 4.18
Align Kconfig and Kbuild logic to Linux 4.18 release with minimal impact
on files outside of this scope.

Our previous Kconfig sync was done by commit e91610da7c ("kconfig:
re-sync with Linux 4.17-rc4").

A very small number of changes upstream since our sync with v4.17-rc4
that exist in the v4.18 release have already been applied here and have
been omitted from the list in this commit (and are readily available in
our own git history).

The imported Linux commits are:
[From prior to v4.17-rc4]
39a33ff80a25 kbuild: remove cc-option-align
db547ef19064 Kbuild: don't add obj tree in additional includes
b999596b963a Kbuild: don't add ../../ to include path

[From v4.17 to v4.18]
b3aa58d2e85d fixdep: suppress consecutive / from file paths in dependency list files
74656b682902 kbuild: disable new dtc graph and unit-address warnings
74d931716151 genksyms: remove symbol prefix support
e6ecfb45072c kbuild: do not display CHK for filechk
0b669a5076fd kconfig: refactor Qt package checks for building qconf
b464ef583dc7 kconfig: refactor GTK+ package checks for building gconf
1c5af5cf9308 kconfig: refactor ncurses package checks for building mconf and nconf
694c49a7c01c kconfig: drop localization support
96f60dfa5819 trace: Use -mcount-record for dynamic ftrace
bb222ceeb327 kconfig: remove string expansion in file_lookup()
96d8e48da55a kconfig: remove string expansion for mainmenu after yyparse()
5b31a9746756 kconfig: remove sym_expand_string_value()
137c0118a900 kconfig: make default prompt of mainmenu less specific
e298f3b49def kconfig: add built-in function support
2fd5b09c201e kconfig: add 'shell' built-in function
9de071536c87 kconfig: begin PARAM state only when seeing a command keyword
9ced3bddec08 kconfig: support user-defined function and recursively expanded variable
1175c02506ff kconfig: support simply expanded variable
ed2a22f277c6 kconfig: support append assignment operator
82bc8bd82e5c kconfig: expand lefthand side of assignment statement
1d6272e6fe43 kconfig: add 'info', 'warning-if', and 'error-if' built-in functions
a702a6176e2f kconfig: add 'filename' and 'lineno' built-in variables
915f64901eb3 kconfig: error out if a recursive variable references itself
2bece88f89fa kconfig: test: add Kconfig macro language tests
21c54b774744 kconfig: show compiler version text in the top comment
59f7b5847b0c kbuild: $(CHECK) doesnt need NOSTDINC_FLAGS twice
145167650b96 kbuild: add endianness flag to CHEKCFLAGS
1f2f01b122d7 kbuild: add machine size to CHECKFLAGS
d6a0c8a1326b kconfig: Add testconfig into make help output
bb6d83dde191 kbuild: Move last word of nconfig help to the previous line
8593080c0fcf kconfig: fix localmodconfig
ed7d40bc67b8 tracing: Fix SKIP_STACK_VALIDATION=1 build due to bad merge with -mrecord-mcount
b2d00d7c61c8 kconfig: fix line numbers for if-entries in menu tree
ecd53ac2f2c6 kconfig: handle P_SYMBOL in print_symbol()
73d1c580f92b kconfig: loop boundary condition fix
48f6e3cf5bc6 kbuild: do not drop -I without parameter
bd412d81b7ea kbuild: .PHONY is not a variable, but PHONY is
6916162c7308 kbuild: remove duplicated comments about PHONY

Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 18:54:18 -04:00
Rob Herring
6e916dfd9d scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bc
This adds the following commits from upstream:

84e414b0b5bc tests: Add a test case for the omit-if-no-ref keyword
4038fd90056e dtc: add ability to make nodes conditional on them being referenced
e1f139ea4900 checks: drop warning for missing PCI bridge bus-range
f4eba68d89ee checks: Print duplicate node name instead of parent name
46df1fb1b211 .travis.yml: Run valgrind checks via Travis
14a3002a1aee tests: Update valgrind suppressions for sw_tree1
02c5fe9debc0 tests: Remove valgrind error from tests/get_path
df536831d02c checks: add graph binding checks
2347c96edcbe checks: add a check for duplicate unit-addresses of child nodes
8f1b35f88395 Correct overlay syntactic sugar for generating target-path fragments
afbddcd418fb Suppress warnings on overlay fragments
119e27300359 Improve tests for dtc overlay generation

[From Linux Kernel commit 50aafd60898a8b3edf2f60e014a8288da3b2e5e3]
Signed-off-by: Rob Herring <robh@kernel.org>

[For applying to U-Boot]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-03-16 18:54:18 -04:00
Tom Rini
7261833f36 Azure / GitLab / Travis: Add Kconfig unit tests to a job
The Kconfig language provides a unit test that can be run.  As these
require pytest to be installed and run very quickly, bundle them in to
an existing CI job.

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-03-16 18:54:18 -04:00
Tom Rini
2c59412a9f mach-davinci: Hard-code the default SPL_LDSCRIPT path
As there is only one linker script to use in this case, rather than use
the BOARDDIR variable hard-code the path.

Cc: Lokesh Vutla <lokeshvutla@ti.com>
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 18:54:18 -04:00
Tom Rini
38fec8de5f edminiv2: Move CONFIG_SPL_LDSCRIPT to defconfig
As there is only one machine under mach-orion5x, having a Kconfig entry
for SPL_LDSCRIPT is not helpful, move this to the defconfig file.

Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 18:54:18 -04:00
Tom Rini
23830e98f5 mx31pdk: Move CONFIG_SPL_LDSCRIPT to defconfig
As there is only one mx31pdk config file and with upcoming updates to
the Kconfig parsing logic, rather than have an entry in
board/freescale/mx31pdk/Kconfig, move this single setting to the
defconfig file.

Cc: Magnus Lilja <lilja.magnus@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by:  Magnus Lilja <lilja.magnus@gmail.com>
2020-03-16 18:54:18 -04:00
Tom Rini
d91cf006ee Kconfig: Remove redundant variable sets
In a few places we have Kconfig entries that set SPL_LDSCRIPT to what is
the default value anyways.  Drop these.

Cc: Michal Simek <monstr@monstr.eu>
Cc: Rick Chen <rick@andestech.com>
Cc: Philippe Reynes <tremyfr@yahoo.fr>
Cc: Eric Jarrige <eric.jarrige@armadeus.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com> (for Microblaze)
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 16:42:50 -04:00
Tom Rini
a356e7a86b spl: Kconfig: Escape '$(ARCH)' in LDSCRIPT entries
The default SPL / TPL linker script is in the $(ARCH) directory.  The
way we use this today works but isn't ideal.  With an update to Kconfig
to re-sync with the Linux Kernel, we need to escape the '$' here so that
it will end up being evaluated by make.

Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 16:42:50 -04:00
Masahiro Yamada
ddb87a0b40 kbuild: remove unused dtc-version.sh script
This is U-Boot own code, and no longer used since commit 36dd5f1b8a
("dtc: Switch to building and using our own dtc unless provided").

Prior to that commit, U-Boot relied on an external dtc, so this script
was used to check the dtc version.

Now U-Boot bundles our own dtc in script/dtc/dtc like Linux kernel.

Users are still allowed to pass DTC= option from the command line,
but they are supposed to choose correct version of dtc in this case.
So, we do not check the dtc version any more.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 16:42:50 -04:00
Masahiro Yamada
271cf2f421 spl.h: make <spl.h> self-contained
The static inline function spl_phase needs <asm/global_data.h>.

Some functions take pointers to struct blk_desc or image_header.
Add forward declarations.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-03-16 16:42:50 -04:00
Masahiro Yamada
77c4ba54c6 debug_uart.h: make <debug_uart.h> self-contained
'uint' is not a primitive type. You need to include <linux/types.h>
or otherwise change it to (unsigned int).

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2020-03-16 16:42:50 -04:00
Masahiro Yamada
4ca281a56c asm-generic/u-boot.h: make <asm-generic/u-boot.h> self-contained
This header uses 'phys_addr_t' and 'ulong'. Include the definitions.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[trini: Move include to below __ASSEMBLY__ test]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-03-16 16:42:33 -04:00
Masahiro Yamada
b36992fb6b global_data.h: make <asm-generic/global_data.h> self-contained
The compiler never knows what 'bd_t' is without including <asm/u-boot.h>.

By changing it to (struct bd_info), the compiler learns it is struct.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 12:49:09 -04:00
Tom Rini
7a212e5617 scripts/Makefile.lib: Re-add -Wno-simple_bus_reg to DTC_FLAGS
This exists in Linux Kernel with commit 70523a3ce5ff so put it in the
list of DTC_FLAGS that mirror Linux as we will catch up there.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 12:49:09 -04:00
Tom Rini
aacf264bfd scripts/Makefile.lib: Restore PCI related warnings to DTC_FLAGS
While we are working on correcting usage related to the pci_bridge and
pci_device_bus_num warnings, disable these flags for now.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 12:49:09 -04:00
Tom Rini
e0d1a89a5b kbuild: Re-sync DTC flag logic with v4.17
The way that we have been handling additional DTC warning flags hasn't
matched the way the Linux Kernel does.  Resync this logic with v4.17.

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-03-16 12:49:09 -04:00
Tom Rini
67f2ee86cc kbuild: fixdep: Resync this with v4.17
The previous kbuild resync of e91610da7c ("kconfig: re-sync with Linux
4.17-rc4") accidentally did not sync the fixdep program.  This commit
brings fixdep in line with the rest of that previous resync.

This includes all of the following Linux kernel commits:
fbfa9be9904e kbuild: move include/config/ksym/* to include/ksym/*
5b8ad96d1a44 fixdep: remove some false CONFIG_ matches
14a596a7e6fd fixdep: remove stale references to uml-config.h
ab9ce9feed36 fixdep: use existing helper to check modular CONFIG options
87b95a81357d fixdep: refactor parse_dep_file()
5d1ef76f5a22 fixdep: move global variables to local variables of main()
ccfe78873c22 fixdep: remove unneeded memcpy() in parse_dep_file()
4003fd80cba9 fixdep: factor out common code for reading files
01b5cbe7012f fixdep: use malloc() and read() to load dep_file to buffer
41f92cffba19 fixdep: remove unnecessary <arpa/inet.h> inclusion
7c2ec43a2154 fixdep: exit with error code in error branches of do_config_file()
4e433fc4d1a9 fixdep: trivial: typo fix and correction
dee81e988674 fixdep: faster CONFIG_ search
c1a95fda2a40 kbuild: add fine grained build dependencies for exported symbols
d8329e35cc08 fixdep: accept extra dependencies on stdin
4c835b57b8de fixdep: constify strrcmp arguments

Of note is that when applying dee81e988674 above our logic in that area
required some careful consideration to continue to apply.

[Fold in bugfix to allow us to include 638e69cf2230 from upstream]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

[Merge everything to U-Boot, rework dee81e988674]
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16 12:49:09 -04:00
Masahiro Yamada
8a266e5800 fixdep: fix U-Boot own code to handle only valid symbol characters
Currently, fixdep skips parsing include/linux/kconfig.h, but if it
parsed it, it would translate the following code in kconfig.h

  config_enabled(CONFIG_VAL(option##_MODULE)

into:

  $(wildcard include/config/option##/module.h)

When Kbuild includes .*.cmd, it would emit the following error:

  *** unterminated call to function 'wildcard': missing ')'.  Stop.

This issue prevents us from importing the upstream Linux commit
638e69cf2230 ("fixdep: do not ignore kconfig.h").

Fix this by handling only alphanumerical characters and underscores.
This makes sense because they match to the valid character sets in
Kconfig symbols.

As a side-note, you can reproduce this issue only on GNU Make <= 4.2.1

For GNU Make <= 4.2.1, the '#' always means the start of a comment.
Hence, GNU Make thinks the closing ')' is missing.

The following commit in GNU Make changed how it handles '#' in
function invocations. So, this does not happen for GNU Make 4.3

| commit c6966b323811c37acedff05b576b907b06aea5f4
| Author: Paul Smith <psmith@gnu.org>
| Date:   Thu Dec 22 18:47:26 2016 -0500
|
|    [SV 20513] Un-escaped # are not comments in function invocations

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reported-by: Tom Rini <trini@konsulko.com>
2020-03-16 12:49:09 -04:00
Heiko Schocher
80e8b8add0 bootcounter: add DM support for memory based bootcounter
add DM/DTS support for the memory based bootcounter
in drivers/bootcount/bootcount.c.

Let the old implementation in, so boards which have
not yet convert to DM/DTS do not break.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-03-16 08:05:00 +01:00
Jun Chen
27d483bfa3 i2c: designware_i2c: add 'hs_hcnt' and 'hs_lcnt' for high speed
Add support for high speed if scl_sda_cfg exist.

Signed-off-by: Jun Chen <ptchentw@gmail.com>
Signed-off-by: Jun Chen <jun.chen@vatics.com>
2020-03-16 08:04:29 +01:00
Jun Chen
be26342314 i2c: designware_i2c: remove 'has_high_speed'
Remove 'has_high_speed' config since we can check high speed support
from IC_COMP_PARAM_1 register.

Signed-off-by: Jun Chen <ptchentw@gmail.com>
Signed-off-by: Jun Chen <jun.chen@vatics.com>
2020-03-16 08:04:17 +01:00
Jun Chen
565e328b95 i2c: designware_i2c: check is high speed possible support
To read IC_COMP_PARAM_1[3:2] to check is high speed possible,
and fall back to fast mode if not.

Signed-off-by: Jun Chen <ptchentw@gmail.com>
Signed-off-by: Jun Chen <jun.chen@vatics.com>
2020-03-16 08:04:09 +01:00
Jun Chen
70c894f85e i2c: designware_i2c: Fix IC_CON register setting for high speed mode
IC_CON[2:1] should be 3 for high speed mode

Signed-off-by: Jun Chen <ptchentw@gmail.com>
Signed-off-by: Jun Chen <jun.chen@vatics.com>
2020-03-16 08:03:53 +01:00
Masahiro Yamada
0c17bb1cbe misc: i2c_eeprom: store pagesize instead of pagewidth in i2c_eeprom_drv_data
Associate the pagesize with compatible strings, and copy it to
priv->pagesize. This is more straight-forward.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-03-16 08:03:29 +01:00
Suman Anna
445b45042c remoteproc: k3-r5: Fix rproc init failure on Split-mode _only_ devices
The R5F subsystem/cluster on K3 SoCs can support both LockStep and
Split-modes (superset) or just Split-mode depending on an eFUSE
capability register. The LockStep configuration bit is Read-only
though on Split-mode _only_ devices and as such the System Firmware
does not allow the LockStep mode bit to be configured on such devices.
The current logic in k3_r5f_rproc_configure() fails on Split-mode
devices because of this unconditional programming of the LockStep
mode bit, and results in the probe failure shown during the
"rproc init" step at U-Boot prompt.

Fix this by limiting the LockStep mode bit clear configuration only on
devices supporting both LockStep/Split-modes.

Fixes: 4c850356a8 ("remoteproc: Introduce K3 remoteproc driver for R5F subsystem")
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-03-16 12:33:19 +05:30
Masahiro Yamada
ed6dd4e460 misc: i2c_eeprom: remove pagewidth field from i2c_eeprom
This struct member is not used in any effective way. Remove it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-03-16 08:03:05 +01:00
Suman Anna
0438a0a181 remoteproc: k3-r5: Fix rproc init failure for Main R5FSS0
The Main R5FSS0 cluster is also enabled to probe the R5F remoteproc
driver within R5 SPL for booting the Core0 very early. This results
in a ti_sci_power_domain_on failure during the probe from the A72
U-Boot when "rproc init" is executed at U-Boot prompt, and doesn't
enumerate all the rproc devices.

Fix this by suppressing the power_domain_on altogether using the
flag DM_FLAG_DEFAULT_PD_CTRL_OFF added in commit af94ad418d
("dm: core: Allow for not controlling the power-domain by DM framework").

Fixes: fac6aa817a ("configs: j721e_evm_r5: Enable R5F remoteproc support")
Signed-off-by: Suman Anna <s-anna@ti.com>
2020-03-16 12:33:03 +05:30
Suman Anna
42005817ee remoteproc: k3-dsp: Add support for L2RAM loading on C66x DSPs
The resets for the DSP processors on K3 SoCs are managed through the
Power and Sleep Controller (PSC) module. Each DSP typically has two
resets - a global module reset for powering on the device, and a local
reset that affects only the CPU while allowing access to the other
sub-modules within the DSP processor sub-systems.

The C66x DSPs have two levels of internal RAMs that can be used to
boot from, and the firmware loading into these RAMs require the
local reset to be asserted with the device powered on/enabled using
the module reset. Enhance the K3 DSP remoteproc driver to add support
for loading into the internal RAMs. The local reset is deasserted on
SoC power-on-reset, so logic has to be added in probe in remoteproc
mode to balance the remoteproc state-machine.

Note that the local resets are a no-op on C71x cores, and the hardware
does not supporting loading into its internal RAMs.

Signed-off-by: Suman Anna <s-anna@ti.com>
2020-03-16 12:32:47 +05:30
Suman Anna
8f4109e09d armv8: K3: j721e: Add DSP internal memory regions in MMU table
The A72 U-Boot code supports early load and boot of a number of
remote processors including the C66_0 and C66_1 DSPs. The current
code supports only loading into the DDR regions which were already
given the appropriate memory attributes. The C66 DSPs also have L1
and L2 internal memory regions that can behave as normal-memories.

Add a new entry to the J721E MMU table covering these regions with
the appropriate memory attributes to allow the A72 U-Boot code to
support loading directly into these memory regions.

Signed-off-by: Suman Anna <s-anna@ti.com>
2020-03-16 12:32:47 +05:30
Suman Anna
1e53d5b585 remoteproc: k3-dsp: Add a sanity check for DSP boot address alignment
The DSP remote processors on K3 SoCs require a boot register to be
programmed with a boot address, and these boot addresses need to be
aligned on certain address boundaries. The current code does not have
any error checks, and relies on the System Firmware to perform the
checking. Add logic to perform this sanity check within the remoteproc
driver itself to detect these anomalies specifically, and print a
meaningful trace. This avoids the cumbersome debug of root-causing
such failures from the corresponding TI-SCI failure.

The C66x and C71x DSP cores have different alignment needs and are
as follows:
	C66x DSP = 1 KB (0x400)
	C71x DSP = 2 MB (0x200000)

Signed-off-by: Suman Anna <s-anna@ti.com>
2020-03-16 12:32:47 +05:30
Suman Anna
0020003ef3 remoteproc: k3-dsp: Fix unbalanced state machine in k3_dsp_start
The global module reset is deasserted through the ti_sci_power_domain_on()
call in k3_dsp_start(), but is not asserted back if the local module reset
fails. Fix this.

While at this, remove the stale comment about assigned-clock-rates that
seems to have been copied from the K3 ARM64 Remoteproc driver.

Fixes: ab827b3857 ("remoteproc: Introduce K3 C66 and C71 remoteproc driver")
Signed-off-by: Suman Anna <s-anna@ti.com>
2020-03-16 12:32:47 +05:30
Heiko Schocher
ba6fb2f6ac dm: i2c-gpio: add support for clock stretching
This adds support for clock stretching to the i2c-gpio driver. This is
accomplished by switching the GPIO used for the SCL line to an input
when it should be driven high, and polling on the SCL line value until
it goes high (indicating that the I2C slave is no longer pulling it
low).

This is enabled by default; for gpios which cannot be configured as
inputs, the i2c-gpio,scl-output-only property can be used to fall back
to the previous behavior.

Signed-off-by: Michael Auchter <michael.auchter@ni.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:55:06 +01:00
Michael Auchter
7383edc2fb dm: i2c-gpio: rework gpio get/set functions
This patch reworks i2c-gpio to make it easier to switch out the
implementation of the sda/scl get/set functions. This is in preparation
for a patch to conditionally implement clock stretching support.

Signed-off-by: Michael Auchter <michael.auchter@ni.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:48:15 +01:00
Marek Vasut
092d9ea26c doc: i2c: gpio: Document deblock sequence on probe
Document the gpio-i2c deblocking sequence binding.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:47:52 +01:00
Marek Vasut
4368c6a2bc i2c: gpio: Run deblock sequence on probe
Add deblock dequence for the I2C bus, needed on some devices. This sequence
is issued once, when probing the driver, and is controlled by DT property,
"i2c-gpio,deblock".

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:46:31 +01:00
Marek Vasut
a191728633 i2c: Add option to send start condition after deblocking
Add option to send start condition after deblocking SDA.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:46:21 +01:00
Marek Vasut
7231522a5e i2c: Export i2c_deblock_gpio_loop()
Export the i2c_deblock_gpio_loop() so it can be used in other places in
U-Boot. In particular, this is useful in the GPIO I2C driver, which claims
the SDA/SCL GPIOs and thus prevents the i2c_deblock() implementation from
claiming the pins as GPIOs again.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:46:04 +01:00
Marek Vasut
1f746a2c82 i2c: Make deblock delay and SCL clock configurable
Make the delay between SCL line changes and the number of SCL clock
changes configurable as a parameter of the deblock function. No
functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:45:53 +01:00
Tom Rini
e24f0a39d0 Merge branch '2020-03-12-rsa-improvements' into next
(Description from AKASHI Takahiro)

extend rsa_verify() for UEFI secure boot:

The current rsa_verify() requires five parameters for a RSA public key
for efficiency while RSA, in theory, requires only two. In addition,
those parameters are expected to come from FIT image.

So this function won't fit very well when we want to use it for the
purpose of implementing UEFI secure boot, in particular, image
authentication as well as variable authentication, where the essential
two parameters are set to be retrieved from one of X509 certificates in
signature database.

So, in this patch, additional three parameters will be calculated on the
fly when rsa_verify() is called without fdt which should contain
parameters above.

This calculation heavily relies on "big-number (or multi-precision)
library." Therefore some routines from BearSSL under MIT license are
imported in this implementation.
2020-03-12 12:45:27 -04:00
AKASHI Takahiro
2201fe70d8 test: enable RSA library test on sandbox
We want to always run RSA library test on sandbox build in Travis CI.
Just adding CONFIG_RSA_VERIFY_WITH_PKEY would be good enough for this
purpose.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2020-03-12 08:20:39 -04:00
AKASHI Takahiro
d090b39ecb test: add rsa_verify() unit test
In this patch, a very simple test is added to verify that rsa_verify()
using rsa_verify_with_pkey() work correctly.

To keep the code simple, all the test data, either public key and
verified binary data, are embedded in the source.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2020-03-12 08:20:39 -04:00
AKASHI Takahiro
0cc7a7535f lib: rsa: add rsa_verify_with_pkey()
This function, and hence rsa_verify(), will perform RSA verification
with two essential parameters for a RSA public key in contract of
rsa_verify_with_keynode(), which requires additional three parameters
stored in FIT image.

It will be used in implementing UEFI secure boot, i.e. image authentication
and variable authentication.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-03-12 08:20:39 -04:00