This patch add support for rv1108 minievb v10 board.
Change-Id: I579ce78c1c4d3ebaebf25f5aa0a22413799ed06d
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
rv1108 is a high performance low power application processor.
embedded with a new generation DSP for digital process and an
arm cortex-a7 single core processor for system and application.
Change-Id: I56f9537467042aa512fb27de974d5ae7dc2ed669
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
This patch add the clock tree definition for rv1108.
Change-Id: I9b55cd46c62331057fe8a404c606fe9d08f03388
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Android will switch governor between different applications, so we
must recover tunables for interactive governor.
Change-Id: Ieb3d1f46ec628bf0a70d2656b63dd255f36770e0
Signed-off-by: Liang Chen <cl@rock-chips.com>
This modification is to solve the problem of hot plug failure when
SD card is inserted after boot, because det pin is initialized as GPIO
Change-Id: I1cd49faa92fa7502c23dd30c2c35fa712e5d0ea3
Signed-off-by: Chen Lei <lei.chen@rock-chips.com>
Currently ARM CPUs DT bindings allows different enable-method value for
PSCI based systems. On ARM 64-bit this property is required and must be
"psci" while on ARM 32-bit systems this property is optional and must
be "arm,psci" if present.
However, "arm,psci" has always been the compatible string for the PSCI
node, and was never intended to be the enable-method. So this is a bug
in the binding and not a deliberate attempt at specifying 32-bit
differently.
This is problematic if 32-bit OS is run on 64-bit system which has
"psci" as enable-method rather than the expected "arm,psci".
So let's unify the value into "psci" and remove support for "arm,psci"
before it finds any users.
Reported-by: Soby Mathew <Soby.Mathew@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
(cherry picked from commit 978fa43623)
Change-Id: Ie75091185d9236595c564081083ffc202f9ba178
Fusb302 driver uses gpiod_set_value() to control VBUS, so vbus-5v-gpios
flags should be used correctly in device tree.
Change-Id: Ie7f0d1d290750bbf4207c1bc5665e4a0427a7a97
Signed-off-by: Bin Yang <yangbin@rock-chips.com>
Currently driver uses gpiod_set_raw_value() to control VBUS, which unable
to parse flags 'GPIO_ACTIVE_LOW' in device tree. We cannot ensure that
vbus-gpio will be designed to active-high in all products. So we should
use the gpiod_set_value() to control VBUS, and also gpio flags be used
correctly in device tree synchronously.
Change-Id: I94d143dde7b44d89b5593fbb5014859fedb83b04
Signed-off-by: Bin Yang <yangbin@rock-chips.com>
Spectre variant 1 attacks are about this sequence of pseudo-code:
index = load(user-manipulated pointer);
access(base + index * stride);
In order for the cache side-channel to work, the access() must me made
to memory which userspace can detect whether cache lines have been
loaded. On 32-bit ARM, this must be either user accessible memory, or
a kernel mapping of that same user accessible memory.
The problem occurs when the load() speculatively loads privileged data,
and the subsequent access() is made to user accessible memory.
Any load() which makes use of a user-maniplated pointer is a potential
problem if the data it has loaded is used in a subsequent access. This
also applies for the access() if the data loaded by that access is used
by a subsequent access.
Harden the get_user() accessors against Spectre attacks by forcing out
of bounds addresses to a NULL pointer. This prevents get_user() being
used as the load() step above. As a side effect, put_user() will also
be affected even though it isn't implicated.
Also harden copy_from_user() by redoing the bounds check within the
arm_copy_from_user() code, and NULLing the pointer if out of bounds.
Change-Id: I7598d2a637267b5979a7013cf450a80caaa2044f
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from commit a3c0f84765)
Fixing __get_user() for spectre variant 1 is not sane: we would have to
add address space bounds checking in order to validate that the location
should be accessed, and then zero the address if found to be invalid.
Since __get_user() is supposed to avoid the bounds check, and this is
exactly what get_user() does, there's no point having two different
implementations that are doing the same thing. So, when the Spectre
workarounds are required, make __get_user() an alias of get_user().
Change-Id: I32e38a7635961822ffadaad256caf9a34268bd2a
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from commit b1cd0a1480)
Borrow the x86 implementation of __inttype() to use in get_user() to
select an integer type suitable to temporarily hold the result value.
This is necessary to avoid propagating the volatile nature of the
result argument, which can cause the following warning:
lib/iov_iter.c:413:5: warning: optimization may eliminate reads and/or writes to register variables [-Wvolatile-register-var]
Change-Id: I2663f38f5a278c8406793dc7c8b88403ee6918b1
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from commit d09fbb327d)
__get_user_error() is used as a fast accessor to make copying structure
members as efficient as possible. However, with software PAN and the
recent Spectre variant 1, the efficiency is reduced as these are no
longer fast accessors.
In the case of software PAN, it has to switch the domain register around
each access, and with Spectre variant 1, it would have to repeat the
access_ok() check for each access.
Rather than using __get_user_error() to copy each semops element member,
copy each semops element in full using __copy_from_user().
Change-Id: I7174992c0c63cb5f4f191b1961519e0d3c7a72e5
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from commit 8c8484a1c1)
__get_user_error() is used as a fast accessor to make copying structure
members in the signal handling path as efficient as possible. However,
with software PAN and the recent Spectre variant 1, the efficiency is
reduced as these are no longer fast accessors.
In the case of software PAN, it has to switch the domain register around
each access, and with Spectre variant 1, it would have to repeat the
access_ok() check for each access.
Use __copy_from_user() rather than __get_user_err() for individual
members when restoring VFP state.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
(cherry picked from commit 42019fc50d)
Change-Id: I978369093e075213b01e27aff3c633acfb3592be
__get_user_error() is used as a fast accessor to make copying structure
members in the signal handling path as efficient as possible. However,
with software PAN and the recent Spectre variant 1, the efficiency is
reduced as these are no longer fast accessors.
In the case of software PAN, it has to switch the domain register around
each access, and with Spectre variant 1, it would have to repeat the
access_ok() check for each access.
It becomes much more efficient to use __copy_from_user() instead, so
let's use this for the ARM integer registers.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
(cherry picked from commit c32cd419d6)
Change-Id: I3e285582bedc3973ca0cc08d63562d71aad2f520
Prevent speculation at the syscall table decoding by clamping the index
used to zero on invalid system call numbers, and using the csdb
speculative barrier.
Change-Id: Idce90686d2e49703c5794c81b9bc9a41d93cc658
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from commit 10573ae547)
Add an implementation of the array_index_mask_nospec() function for
mitigating Spectre variant 1 throughout the kernel.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
(cherry picked from commit 1d4238c56f)
Change-Id: I69fc8c673578a937a06cfdf85ae73492d25d069f
The SPI driver looked a bit lonely in the config menu, and it didn't
support the autoselect. Shift things around a bit so it looks more logical.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 8283a09299)
Change-Id: I8f67aa29dffe477b349b0a503b6db7abfd2357ec
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Separate the power supply to arm&logic, arm freq support 1.2G,
disable vad and include rk3308k.dtsi
Change-Id: I91516773e74fd098117bfdcf8213803e19cf7527
Signed-off-by: Lin Jianhua <linjh@rock-chips.com>
