linux-toradex.git/drivers/mailbox/Kconfig, branch v4.10 Linux kernel for Apalis and Colibri modules mailbox: Add Tegra HSP driver 2016-11-18T13:26:13+00:00 Thierry Reding treding@nvidia.com 2016-08-19T17:19:39+00:00 0fe88461a0ec95a71950b4841f139a62ed63dc81 This driver exposes a mailbox interface for interprocessor communication using the Hardware Synchronization Primitives (HSP) module's doorbell mechanism. There are multiple HSP instances and they provide additional features such as shared mailboxes, shared and arbitrated semaphores. A driver for a remote processor can use the mailbox client provided by the HSP driver and build an IPC protocol on top of this synchronization mechanism. Based on work by Joseph Lo <josephl@nvidia.com>. Acked-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
This driver exposes a mailbox interface for interprocessor communication
using the Hardware Synchronization Primitives (HSP) module's doorbell
mechanism. There are multiple HSP instances and they provide additional
features such as shared mailboxes, shared and arbitrated semaphores.

A driver for a remote processor can use the mailbox client provided by
the HSP driver and build an IPC protocol on top of this synchronization
mechanism.

Based on work by Joseph Lo <josephl@nvidia.com>.

Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
mailbox: Add Platform Message-Handling-Unit variant driver 2016-09-07T07:37:17+00:00 Neil Armstrong narmstrong@baylibre.com 2016-08-18T10:10:25+00:00 ad3a212c1db1650b1f6e438201494c7bb7111f54 Add Message-Handling-Unit driver for platform variants as mailbox controller. Actually, only the Amlogic Meson GXBB SoC MHU is supported. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
Add Message-Handling-Unit driver for platform variants as mailbox controller.
Actually, only the Amlogic Meson GXBB SoC MHU is supported.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Add HAS_DMA Kconfig dependency to BCM_PDC_MBOX 2016-08-29T13:09:46+00:00 Rob Rice rrice@broadcom.com 2016-08-01T17:03:41+00:00 e0c6fba45ab730afc22fa01ac1c42459893252ec Add HAS_DMA Kconfig dependency to BCM_PDC_MBOX to avoid link error on some platforms. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Rob Rice <rrice@broadcom.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
Add HAS_DMA Kconfig dependency to BCM_PDC_MBOX to avoid link
error on some platforms.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Rob Rice <rrice@broadcom.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Add Broadcom PDC mailbox driver 2016-07-28T04:04:47+00:00 Rob Rice rrice@broadcom.com 2016-06-30T19:59:23+00:00 a24532f8d17b7211dfb0259920edfcffc8306606 The Broadcom PDC mailbox driver is a mailbox controller that manages data transfers to and from one or more offload engines. Signed-off-by: Rob Rice <rob.rice@broadcom.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
The Broadcom PDC mailbox driver is a mailbox controller that
manages data transfers to and from one or more offload engines.

Signed-off-by: Rob Rice <rob.rice@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Introduce TI message manager driver 2016-03-21T15:03:15+00:00 Nishanth Menon nm@ti.com 2016-03-17T00:23:14+00:00 aace66b170ce7feda2d1860a81eefff37fa9d1d2 Support for TI Message Manager Module. This hardware block manages a bunch of hardware queues meant for communication between processor entities. Clients sitting on top of this would manage the required protocol for communicating with the counterpart entities. For more details on TI Message Manager hardware block, see documentation that will is available here: http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf Chapter 8.1(Message Manager) Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
Support for TI Message Manager Module. This hardware block manages a
bunch of hardware queues meant for communication between processor
entities.

Clients sitting on top of this would manage the required protocol
for communicating with the counterpart entities.

For more details on TI Message Manager hardware block, see documentation
that will is available here: http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf
Chapter 8.1(Message Manager)

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: rockchip: Add Rockchip mailbox driver 2016-03-11T03:40:06+00:00 Caesar Wang wxt@rock-chips.com 2015-10-27T07:31:45+00:00 f70ed3b5dc8b0810a01a24b198eca3f562aedc14 This driver is found on RK3368 SoCs. The Mailbox module is a simple APB peripheral that allows both the Cortex-A53 MCU system to communicate by writing operation to generate interrupt. The registers are accessible by both CPU via APB interface. The Mailbox has the following main features: 1) Support dual-core system: Cortex-A53 and MCU. 2) Support APB interface. 3) Support four mailbox elements, each element includes one data word, one command word register and one flag bit that can represent one interrupt. 4) Four interrupts to Cortex-A53. 5) Four interrupts to MCU. 6) Provide 32 lock registers for software to use to indicate whether mailbox is occupied. [Jassi: Removed unused variable buf_base] Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
This driver is found on RK3368 SoCs.

The Mailbox module is a simple APB peripheral that allows both
the Cortex-A53 MCU system to communicate by writing operation to
generate interrupt.
The registers are accessible by both CPU via APB interface.

The Mailbox has the following main features:

1) Support dual-core system: Cortex-A53 and MCU.
2) Support APB interface.
3) Support four mailbox elements, each element includes one data word,
   one command word register and one flag bit that can represent
   one interrupt.
4) Four interrupts to Cortex-A53.
5) Four interrupts to MCU.
6) Provide 32 lock registers for software to use to indicate whether
   mailbox is occupied.

[Jassi: Removed unused variable buf_base]

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Hi6220: add mailbox driver 2016-03-04T07:02:20+00:00 Leo Yan leo.yan@linaro.org 2016-02-15T13:50:24+00:00 9c384189f5407565141f1a950d8350e56d86b4dd Add driver for Hi6220 mailbox, the mailbox communicates with MCU; for sending data, it can support two methods for low level implementation: one is to use interrupt as acknowledge, another is automatic mode which without any acknowledge. These two methods have been supported in the driver. For receiving data, it will depend on the interrupt to notify the channel has incoming message. Now mailbox driver is used to send message to MCU to control dynamic voltage and frequency scaling for CPU, GPU and DDR. Signed-off-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
Add driver for Hi6220 mailbox, the mailbox communicates with MCU; for
sending data, it can support two methods for low level implementation:
one is to use interrupt as acknowledge, another is automatic mode which
without any acknowledge. These two methods have been supported in the
driver. For receiving data, it will depend on the interrupt to notify
the channel has incoming message.

Now mailbox driver is used to send message to MCU to control dynamic
voltage and frequency scaling for CPU, GPU and DDR.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Add support for APM X-Gene platform mailbox driver 2016-02-15T07:50:03+00:00 Duc Dang dhdang@apm.com 2016-02-13T03:39:26+00:00 f700e84f417b98f867c5db0555e6f01724d53cd2 X-Gene mailbox controller provides 8 mailbox channels, with each channel has a dedicated interrupt line. Signed-off-by: Feng Kan <fkan@apm.com> Signed-off-by: Duc Dang <dhdang@apm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
X-Gene mailbox controller provides 8 mailbox channels, with
each channel has a dedicated interrupt line.

Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Fix dependencies for !HAS_IOMEM archs 2016-02-02T11:17:14+00:00 Richard Weinberger richard@nod.at 2016-01-25T22:24:09+00:00 65d3b04a814679a31fe4d5edd19d89dd5b94fd40 Not every arch has io memory. So, unbreak the build by fixing the dependencies. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
Not every arch has io memory.
So, unbreak the build by fixing the dependencies.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
mailbox: Add generic mechanism for testing Mailbox Controllers 2015-10-17T05:06:56+00:00 Lee Jones lee.jones@linaro.org 2015-10-16T07:21:30+00:00 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 This particular Client implementation uses shared memory in order to pass messages between Mailbox users; however, it can be easily hacked to support any type of Controller. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> 
This particular Client implementation uses shared memory in order
to pass messages between Mailbox users; however, it can be easily
hacked to support any type of Controller.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>