From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksij Rempel Subject: [PATCH v4 0/4] add mailbox support for i.MX7D Date: Wed, 18 Jul 2018 09:12:47 +0200 Message-ID: <20180718071251.8857-1-o.rempel@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Shawn Guo , Fabio Estevam , Rob Herring , Mark Rutland , "A.s. Dong" Cc: Oleksij Rempel , dl-linux-imx , linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org 20180618 changes v4: - DT: change fsl,mu-side-a to fsl,mu-side-b - DT: split the patches. - DT: add all currently known SoCs. - imx-mailbox: free allocated irq name on channel shutdown - imx-mailbox: rename *_imx7 functions to *_generic 20180615 changes v3: - DT: remove prosaic part of documentation. It describes software or firmware specific usage and not relevant for HW description. - DT: use -mu instead of -mu- and add fsl,mu-side-a parameter. - DT: add most of know i.MX variants with MU - imx-mailbox: use macros instead of precalculated bit index. - imx-mailbox: remove warning message for clk. - imx-mailbox: use imx_mu_chan[%idx] for devm_request_irq. - imx-mailbox: depend on ARCH_MXC instead of SOX_IMX7 20180615 changes v2: - DT: use mailbox@ instead of mu@ - DT: change interrupts description - clk: use imx_clk_gate4 instead of imx_clk_gate2 - imx-mailbox: remove last_tx_done support - imx-mailbox: fix module description This patches are providing support for mailbox (Messaging Unit) for i.MX7D. Functionality was tested on PHYTEC phyBOARD-Zeta i.MX7D with Linux running on all cores: ARM Cortex-A7 and ARM Cortex-M4. Both parts of i.MX messaging Unit are visible for all CPUs available on i.MX7D. Communication worked independent of MU side in combination with CPU. For example MU-A used on ARM Cortex-A7 and MU-B used on ARM Cortex-M4 or other ways around. Dong Aisheng (1): dt-bindings: arm: fsl: add mu binding doc Oleksij Rempel (3): dt-bindings: arm: fsl: rework mu doc ARM: dts: imx7s: add i.MX7 messaging unit support mailbox: Add support for i.MX7D messaging unit .../devicetree/bindings/mailbox/fsl,mu.txt | 32 ++ arch/arm/boot/dts/imx7s.dtsi | 19 ++ drivers/mailbox/Kconfig | 6 + drivers/mailbox/Makefile | 2 + drivers/mailbox/imx-mailbox.c | 300 ++++++++++++++++++ 5 files changed, 359 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/fsl,mu.txt create mode 100644 drivers/mailbox/imx-mailbox.c -- 2.18.0