recipes-kernel: New recipe for linux-rockchip

New URL, fixes build failure. It should work with krogoth and morty.
Currently only the radxa rock is supported

Reviewed-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: Romain Perier <romain.perier@gmail.com>

recipes-kernel/linux/linux-rockchip/0001-arm-mach-rk3188-Fix-relative-path-for-dependencies.patch

@@ -0,0 +1,61 @@
+From 72adac076e0d98fc2c3e846de72edf6169707cec Mon Sep 17 00:00:00 2001
+From: Romain Perier <romain.perier@gmail.com>
+Date: Thu, 1 Dec 2016 16:32:13 +0100
+Subject: [PATCH] arm: mach-rk3188: Fix relative path for dependencies
+
+Don't include relative path for dependencies modules, it breaks
+out of source builds.
+
+Signed-off-by: Romain Perier <romain.perier@gmail.com>
+---
+ arch/arm/mach-rk3188/Makefile | 24 ++++++++++++------------
+ 1 file changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/arch/arm/mach-rk3188/Makefile b/arch/arm/mach-rk3188/Makefile
+index b80abdc..2fb39fb 100644
+--- a/arch/arm/mach-rk3188/Makefile
++++ b/arch/arm/mach-rk3188/Makefile
+@@ -1,28 +1,28 @@
+ EXTRA_CFLAGS += -Os
+ ifneq ($(CONFIG_RK_FPGA),y)
+-obj-y += ../plat-rk/clock.o
++obj-y += clock.o
+ obj-y += clock_data.o
+-obj-y += ../mach-rk30/ddr.o
+-obj-y += ../mach-rk30/pmu.o
+-obj-y += ../mach-rk30/reset.o
+-obj-$(CONFIG_PM) += ../mach-rk30/pm.o
++obj-y += ddr.o
++obj-y += pmu.o
++obj-y += reset.o
++obj-$(CONFIG_PM) += pm.o
+ endif
+-obj-y += ../mach-rk30/common.o
++obj-y += common.o
+ CFLAGS_common.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
+-obj-y += ../mach-rk30/devices.o
++obj-y += devices.o
+ obj-y += io.o
+ obj-y += rk_timer.o
+-obj-$(CONFIG_SMP) += ../mach-rk30/platsmp.o ../mach-rk30/headsmp.o
+-obj-$(CONFIG_HOTPLUG_CPU) += ../mach-rk30/hotplug.o
+-obj-$(CONFIG_CPU_IDLE) += ../mach-rk30/cpuidle.o
++obj-$(CONFIG_SMP) += platsmp.o headsmp.o
++obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
++obj-$(CONFIG_CPU_IDLE) += cpuidle.o
+ obj-$(CONFIG_CPU_FREQ) += cpufreq.o
+ obj-$(CONFIG_DVFS) += dvfs.o
+ obj-y += board.o
+ 
+ board-$(CONFIG_MACH_RK3188_FPGA) += board-rk3188-fpga.o
+-board-$(CONFIG_MACH_RK3188_TB) += ../mach-rk30/board-rk3168-tb.o
++board-$(CONFIG_MACH_RK3188_TB) += board-rk3168-tb.o
+ board-$(CONFIG_MACH_RK3188_SDK) += board-rk3188-sdk.o
+-board-$(CONFIG_MACH_RK3188_LR097) += ../mach-rk30/board-rk3168-LR097.o
++board-$(CONFIG_MACH_RK3188_LR097) += board-rk3168-LR097.o
+ board-$(CONFIG_MACH_RK3188_DS1006H) += board-rk3188-ds1006h.o
+ obj-$(CONFIG_SOC_RK3188) += board.o
+ board-$(CONFIG_MACH_RK3188_FAC) += board-rk3188-fac.o
+-- 
+2.9.3
+

recipes-kernel/linux/linux-rockchip/0002-Some-other-fixes.patch

@@ -0,0 +1,41 @@
+From fc28debedc298cdd19e0327ac416c0e51a74fe6d Mon Sep 17 00:00:00 2001
+From: Romain Perier <romain.perier@gmail.com>
+Date: Fri, 2 Dec 2016 18:46:33 +0100
+Subject: [PATCH] Some other fixes
+
+Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
+---
+ drivers/net/wireless/Makefile | 2 +-
+ kernel/timeconst.pl           | 3 ---
+ 2 files changed, 1 insertion(+), 4 deletions(-)
+
+diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
+index becd320..a8fbdb7 100755
+--- a/drivers/net/wireless/Makefile
++++ b/drivers/net/wireless/Makefile
+@@ -1,7 +1,7 @@
+ #
+ # Makefile for the Linux Wireless network device drivers.
+ #
+-obj-y += wifi_sys/rkwifi_sys_iface.o
++obj-y += $(realpath wifi_sys/rkwifi_sys_iface.o)
+ obj-$(CONFIG_BCM4329)   += bcm4329/
+ obj-$(CONFIG_MV8686)   += mv8686/
+ obj-$(CONFIG_BCM4319)   += bcm4319/
+diff --git a/kernel/timeconst.pl b/kernel/timeconst.pl
+index eb51d76..82266f5 100644
+--- a/kernel/timeconst.pl
++++ b/kernel/timeconst.pl
+@@ -370,9 +370,6 @@ if ($hz eq '--can') {
+ 	}
+ 
+ 	@val = @{$canned_values{$hz}};
+-	if (!defined(@val)) {
+-		@val = compute_values($hz);
+-	}
+ 	output($hz, @val);
+ }
+ exit 0;
+-- 
+2.9.3
+

recipes-kernel/linux/linux-rockchip_3.0.bb

@@ -0,0 +1,44 @@
+# Copyright (C) 2016 Romain Perier
+# Released under the MIT license (see COPYING.MIT for the terms)
+
+require recipes-kernel/linux/linux-yocto.inc
+
+SRC_URI = "git://github.com/radxa/linux-rockchip.git;branch=radxa-stable-3.0 \
+    file://0001-arm-mach-rk3188-Fix-relative-path-for-dependencies.patch \
+    file://0002-Some-other-fixes.patch"
+SRCREV = "${AUTOREV}"
+PV = "3.0.36"
+DEPENDS = "prebuilt-gcc-linaro"
+COMPATIBLE_MACHINE = "(radxarock)"
+KBUILD_DEFCONFIG = "radxa_rock_linux_defconfig"
+# kernel 3.0.x does not have devicetree
+KERNEL_DEVICETREE = ""
+
+# This kernel only builds and works with the gcc-4.x toolchain. As, we only want
+# to use this toolchain for this recipe, we overwrite CROSS_COMPILE, CC, LD and
+# AR.
+export CROSS_COMPILE = "arm-linux-gnueabi-"
+KERNEL_CC = "${CROSS_COMPILE}gcc"
+KERNEL_LD = "${CROSS_COMPILE}ld.bfd"
+KERNEL_AR = "${CROSS_COMPILE}ar"
+
+deltask kernel_configme
+
+# The rockchip kernel for mach-rk3188 does not support out-of-tree build,
+# mainly because the Makefile includes relative path to the parent directory
+# for most of its dependencies (mach-rk30 and plat-rk). By doing so, it breaks
+# the out-of-tree build. Even by patching the Makefile to use "realpath", it is
+# very difficult to have a successful build (we get strange link errors). So we
+# create symlinks, to put dependencies into the same directory.
+do_configure_append() {
+    MODULES="ddr.c ddr_reg_resume.inc pmu.c reset.c pm.c common.c devices.c \
+             platsmp.c headsmp.S hotplug.c cpuidle.c"
+    for m in ${MODULES}; do
+        ln -sf ${S}/arch/arm/mach-rk30/${m} ${S}/arch/arm/mach-rk3188/${m}
+    done
+    ln -sf ${S}/arch/arm/plat-rk/clock.c ${S}/arch/arm/mach-rk3188/clock.c
+}
+
+do_install_prepend() {
+    install -d ${D}/lib/firmware
+}