From patchwork Tue Aug 9 14:43:51 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: holt@sgi.com X-Patchwork-Id: 109237 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id 5F7CCB8472 for ; Wed, 10 Aug 2011 00:45:18 +1000 (EST) Received: from relay.sgi.com (relay2.sgi.com [192.48.179.30]) by ozlabs.org (Postfix) with ESMTP id 1A2FDB7D3C for ; Wed, 10 Aug 2011 00:44:56 +1000 (EST) Received: from gulag1.americas.sgi.com (gulag1.americas.sgi.com [128.162.236.41]) by relay2.corp.sgi.com (Postfix) with ESMTP id 07EB2304048; Tue, 9 Aug 2011 07:44:55 -0700 (PDT) Received: by gulag1.americas.sgi.com (Postfix, from userid 1641) id D67001039E641; Tue, 9 Aug 2011 09:44:54 -0500 (CDT) From: Robin Holt To: Robin Holt , Marc Kleine-Budde , Wolfgang Grandegger , U Bhaskar-B22300 Subject: [PATCH 5/5] [powerpc] Fix up fsl-flexcan device tree binding. Date: Tue, 9 Aug 2011 09:43:51 -0500 Message-Id: <1312901031-29887-6-git-send-email-holt@sgi.com> X-Mailer: git-send-email 1.7.2.1 In-Reply-To: <1312901031-29887-1-git-send-email-holt@sgi.com> References: <1312901031-29887-1-git-send-email-holt@sgi.com> Cc: , netdev@vger.kernel.org, socketcan-core@lists.berlios.de, Robin Holt , PPC list X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org In working with the socketcan developers, we have come to the conclusion the fsl-flexcan device tree bindings need to be cleaned up. The driver does not depend upon any properties other than the required properties so we are removing the file. Additionally, the p1010*dts files are not following the standard for node naming in that they have a trailing -v1.0. Signed-off-by: Robin Holt To: Marc Kleine-Budde , To: Wolfgang Grandegger , To: U Bhaskar-B22300 Cc: socketcan-core@lists.berlios.de, Cc: netdev@vger.kernel.org, Cc: PPC list Cc: Kumar Gala --- .../devicetree/bindings/net/can/fsl-flexcan.txt | 61 -------------------- arch/powerpc/boot/dts/p1010rdb.dts | 8 --- arch/powerpc/boot/dts/p1010si.dtsi | 6 +- 3 files changed, 2 insertions(+), 73 deletions(-) delete mode 100644 Documentation/devicetree/bindings/net/can/fsl-flexcan.txt diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt deleted file mode 100644 index 1a729f0..0000000 --- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt +++ /dev/null @@ -1,61 +0,0 @@ -CAN Device Tree Bindings ------------------------- -2011 Freescale Semiconductor, Inc. - -fsl,flexcan-v1.0 nodes ------------------------ -In addition to the required compatible-, reg- and interrupt-properties, you can -also specify which clock source shall be used for the controller. - -CPI Clock- Can Protocol Interface Clock - This CLK_SRC bit of CTRL(control register) selects the clock source to - the CAN Protocol Interface(CPI) to be either the peripheral clock - (driven by the PLL) or the crystal oscillator clock. The selected clock - is the one fed to the prescaler to generate the Serial Clock (Sclock). - The PRESDIV field of CTRL(control register) controls a prescaler that - generates the Serial Clock (Sclock), whose period defines the - time quantum used to compose the CAN waveform. - -Can Engine Clock Source - There are two sources for CAN clock - - Platform Clock It represents the bus clock - - Oscillator Clock - - Peripheral Clock (PLL) - -------------- - | - --------- ------------- - | |CPI Clock | Prescaler | Sclock - | |---------------->| (1.. 256) |------------> - --------- ------------- - | | - -------------- ---------------------CLK_SRC - Oscillator Clock - -- fsl,flexcan-clock-source : CAN Engine Clock Source.This property selects - the peripheral clock. PLL clock is fed to the - prescaler to generate the Serial Clock (Sclock). - Valid values are "oscillator" and "platform" - "oscillator": CAN engine clock source is oscillator clock. - "platform" The CAN engine clock source is the bus clock - (platform clock). - -- fsl,flexcan-clock-divider : for the reference and system clock, an additional - clock divider can be specified. -- clock-frequency: frequency required to calculate the bitrate for FlexCAN. - -Note: - - v1.0 of flexcan-v1.0 represent the IP block version for P1010 SOC. - - P1010 does not have oscillator as the Clock Source.So the default - Clock Source is platform clock. -Examples: - - can0@1c000 { - compatible = "fsl,flexcan-v1.0"; - reg = <0x1c000 0x1000>; - interrupts = <48 0x2>; - interrupt-parent = <&mpic>; - fsl,flexcan-clock-source = "platform"; - fsl,flexcan-clock-divider = <2>; - clock-frequency = ; - }; diff --git a/arch/powerpc/boot/dts/p1010rdb.dts b/arch/powerpc/boot/dts/p1010rdb.dts index 6b33b73..d6a0bb2 100644 --- a/arch/powerpc/boot/dts/p1010rdb.dts +++ b/arch/powerpc/boot/dts/p1010rdb.dts @@ -169,14 +169,6 @@ }; }; - can0@1c000 { - fsl,flexcan-clock-source = "platform"; - }; - - can1@1d000 { - fsl,flexcan-clock-source = "platform"; - }; - usb@22000 { phy_type = "utmi"; }; diff --git a/arch/powerpc/boot/dts/p1010si.dtsi b/arch/powerpc/boot/dts/p1010si.dtsi index 7f51104..37e47cd 100644 --- a/arch/powerpc/boot/dts/p1010si.dtsi +++ b/arch/powerpc/boot/dts/p1010si.dtsi @@ -141,19 +141,17 @@ }; can0@1c000 { - compatible = "fsl,flexcan-v1.0"; + compatible = "fsl,flexcan"; reg = <0x1c000 0x1000>; interrupts = <48 0x2>; interrupt-parent = <&mpic>; - fsl,flexcan-clock-divider = <2>; }; can1@1d000 { - compatible = "fsl,flexcan-v1.0"; + compatible = "fsl,flexcan"; reg = <0x1d000 0x1000>; interrupts = <61 0x2>; interrupt-parent = <&mpic>; - fsl,flexcan-clock-divider = <2>; }; L2: l2-cache-controller@20000 {