From 3a647aceb5e0eab6185dd02d684fd1d05f2a1909 Mon Sep 17 00:00:00 2001 From: Mihaela Martinas Date: Thu, 10 Dec 2015 10:00:44 +0100 Subject: kernel: Add device tree for p2041rdb for USDPAA A new device tree for USDPAA support has been added for p2041rdb platform. This was necessary to allow the usage of an ethernet interface as a normal one, that interfaces with the Linux kernel network stack. In the beginning all the interfaces were allocated to USDPAA, so they were not visible to the Linux kernel. For the development process this would mean the impossibility to boot using a nfs or to connect via ssh. Signed-off-by: Mihaela Martinas Signed-off-by: Huimin She --- .../linux/files/dts/p2041rdb-usdpaa-enea.dts | 109 +++++++++++++++++++++ recipes-kernel/linux/linux-qoriq-common.inc | 6 ++ 2 files changed, 115 insertions(+) create mode 100644 recipes-kernel/linux/files/dts/p2041rdb-usdpaa-enea.dts diff --git a/recipes-kernel/linux/files/dts/p2041rdb-usdpaa-enea.dts b/recipes-kernel/linux/files/dts/p2041rdb-usdpaa-enea.dts new file mode 100644 index 0000000..e0d2ff4 --- /dev/null +++ b/recipes-kernel/linux/files/dts/p2041rdb-usdpaa-enea.dts @@ -0,0 +1,109 @@ +/* + * P2041RDB Device Tree Source + * + * Copyright 2011-2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/include/ "p2041rdb.dts" + +/ { + /* NB: "bpool-ethernet-seeds" is not set to avoid buffer seeding, + * because apps seed these pools with buffers allocated at + * run-time. + * HOWEVER, the kernel driver requires the buffer-size so + * "fsl,bpool-ethernet-cfg" is set. It also mis-interprets + * things if the base-address is zero (hence the 0xdeadbeef + * values). + */ + bp7: buffer-pool@7 { + compatible = "fsl,p2041-bpool", "fsl,bpool"; + fsl,bpid = <7>; + fsl,bpool-ethernet-cfg = <0 0 0 192 0 0xdeadbeef>; + fsl,bpool-thresholds = <0x400 0xc00 0x0 0x0>; + }; + bp8: buffer-pool@8 { + compatible = "fsl,p2041-bpool", "fsl,bpool"; + fsl,bpid = <8>; + fsl,bpool-ethernet-cfg = <0 0 0 576 0 0xabbaf00d>; + fsl,bpool-thresholds = <0x100 0x300 0x0 0x0>; + }; + bp9: buffer-pool@9 { + compatible = "fsl,p2041-bpool", "fsl,bpool"; + fsl,bpid = <9>; + fsl,bpool-ethernet-cfg = <0 0 0 1728 0 0xfeedabba>; + fsl,bpool-thresholds = <0x100 0x300 0x0 0x0>; + }; + + fsl,dpaa { + + /* ethernet@0 will be used as a normal Linux ethernet that + * interfaces to the kernel network stack. All others will be + * dedicated for use by usdpaa */ + + ethernet@1 { + compatible = "fsl,p2041-dpa-ethernet-init", "fsl,dpa-ethernet-init"; + fsl,bman-buffer-pools = <&bp7 &bp8 &bp9>; + fsl,qman-frame-queues-rx = <0x52 1 0x53 1>; + fsl,qman-frame-queues-tx = <0x72 1 0x73 1>; + }; + ethernet@2 { + compatible = "fsl,p2041-dpa-ethernet-init", "fsl,dpa-ethernet-init"; + fsl,bman-buffer-pools = <&bp7 &bp8 &bp9>; + fsl,qman-frame-queues-rx = <0x54 1 0x55 1>; + fsl,qman-frame-queues-tx = <0x74 1 0x75 1>; + }; + ethernet@3 { + compatible = "fsl,p2041-dpa-ethernet-init", "fsl,dpa-ethernet-init"; + fsl,bman-buffer-pools = <&bp7 &bp8 &bp9>; + fsl,qman-frame-queues-rx = <0x56 1 0x57 1>; + fsl,qman-frame-queues-tx = <0x76 1 0x77 1>; + }; + ethernet@4 { + compatible = "fsl,p2041-dpa-ethernet-init", "fsl,dpa-ethernet-init"; + fsl,bman-buffer-pools = <&bp7 &bp8 &bp9>; + fsl,qman-frame-queues-rx = <0x58 1 0x59 1>; + fsl,qman-frame-queues-tx = <0x78 1 0x79 1>; + }; + ethernet@5 { + compatible = "fsl,p2041-dpa-ethernet-init", "fsl,dpa-ethernet-init"; + fsl,bman-buffer-pools = <&bp7 &bp8 &bp9>; + fsl,qman-frame-queues-rx = <0x5a 1 0x5b 1>; + fsl,qman-frame-queues-tx = <0x7a 1 0x7b 1>; + }; + dpa-fman0-oh@1 { + compatible = "fsl,dpa-oh"; + /* Define frame queues for the OH port*/ + /* */ + fsl,qman-frame-queues-oh = <0x68 1 0x69 1>; + fsl,fman-oh-port = <&fman0_oh1>; + }; + }; +}; diff --git a/recipes-kernel/linux/linux-qoriq-common.inc b/recipes-kernel/linux/linux-qoriq-common.inc index d2fecca..f9eb6d0 100644 --- a/recipes-kernel/linux/linux-qoriq-common.inc +++ b/recipes-kernel/linux/linux-qoriq-common.inc @@ -8,6 +8,7 @@ SRC_URI += "file://b4860-hard_irq_disable-bug.patch \ " SRC_URI_append_t4240rdb-64b = " file://dts/t4240rdb-usdpaa-enea.dts" +SRC_URI_append_p2041rdb = " file://dts/p2041rdb-usdpaa-enea.dts" ENEA_KERNEL_FRAGMENTS += "\ cfg/00013-localversion.cfg \ @@ -40,6 +41,7 @@ DELTA_KERNEL_DEFCONFIG += " ${ENEA_KERNEL_FRAGMENTS} \ " KERNEL_DEVICETREE_append_t4240rdb-64b = " t4240rdb-usdpaa-enea.dtb" +KERNEL_DEVICETREE_append_p2041rdb = " p2041rdb-usdpaa-enea.dtb" require recipes-kernel/linux/pramfs-3.12.inc @@ -61,3 +63,7 @@ do_unpack_append() { do_configure_prepend_t4240rdb-64b() { cp ${WORKDIR}/dts/t4240rdb-usdpaa-enea.dts ${S}/arch/powerpc/boot/dts/ } + +do_configure_prepend_p2041rdb() { + cp ${WORKDIR}/dts/p2041rdb-usdpaa-enea.dts ${S}/arch/powerpc/boot/dts/ +} -- cgit v1.2.3-54-g00ecf