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authorPaul Burton <paul.burton@imgtec.com>2015-05-24 18:11:15 +0300
committerRalf Baechle <ralf@linux-mips.org>2015-06-21 22:52:49 +0300
commitffb1843d059c5627fb8982eb4ab29219e7503fb2 (patch)
tree2e68285faeb1adcff6c05e355021d9e34c711f34 /arch
parent252617a4ab714db824876e3f9b2b2ede6623e9dc (diff)
downloadlinux-ffb1843d059c5627fb8982eb4ab29219e7503fb2.tar.xz
MIPS: JZ4740: require & include DT
Require a DT for JZ4740 based systems, and add a stub one for the qi_lb60 (Ben NanoNote) board. Devices will be migrated to being probed via this DT over time. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10132/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/Kconfig2
-rw-r--r--arch/mips/boot/dts/Makefile1
-rw-r--r--arch/mips/boot/dts/ingenic/Makefile9
-rw-r--r--arch/mips/boot/dts/ingenic/jz4740.dtsi5
-rw-r--r--arch/mips/boot/dts/ingenic/qi_lb60.dts7
-rw-r--r--arch/mips/jz4740/setup.c19
6 files changed, 43 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 006d8147ed61..9501d814ded5 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -300,6 +300,8 @@ config MACH_INGENIC
select SYS_HAS_EARLY_PRINTK
select HAVE_CLK
select GENERIC_IRQ_CHIP
+ select BUILTIN_DTB
+ select USE_OF
config LANTIQ
bool "Lantiq based platforms"
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index 5d95e4bd709a..9c31b30890aa 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -1,5 +1,6 @@
dts-dirs += brcm
dts-dirs += cavium-octeon
+dts-dirs += ingenic
dts-dirs += lantiq
dts-dirs += mti
dts-dirs += netlogic
diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile
new file mode 100644
index 000000000000..0c84f0bc5fa4
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/Makefile
@@ -0,0 +1,9 @@
+dtb-$(CONFIG_JZ4740_QI_LB60) += qi_lb60.dtb
+
+obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+
+# Force kbuild to make empty built-in.o if necessary
+obj- += dummy.o
+
+always := $(dtb-y)
+clean-files := *.dtb *.dtb.S
diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi b/arch/mips/boot/dts/ingenic/jz4740.dtsi
new file mode 100644
index 000000000000..c538691fcc50
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi
@@ -0,0 +1,5 @@
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ingenic,jz4740";
+};
diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts
new file mode 100644
index 000000000000..0c0f6394781a
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts
@@ -0,0 +1,7 @@
+/dts-v1/;
+
+#include "jz4740.dtsi"
+
+/ {
+ compatible = "qi,lb60", "ingenic,jz4740";
+};
diff --git a/arch/mips/jz4740/setup.c b/arch/mips/jz4740/setup.c
index ef796f97b996..d6bb7a39fafe 100644
--- a/arch/mips/jz4740/setup.c
+++ b/arch/mips/jz4740/setup.c
@@ -17,8 +17,11 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
#include <asm/bootinfo.h>
+#include <asm/prom.h>
#include <asm/mach-jz4740/base.h>
@@ -53,8 +56,24 @@ void __init plat_mem_setup(void)
{
jz4740_reset_init();
jz4740_detect_mem();
+ __dt_setup_arch(__dtb_start);
}
+void __init device_tree_init(void)
+{
+ if (!initial_boot_params)
+ return;
+
+ unflatten_and_copy_device_tree();
+}
+
+static int __init populate_machine(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+ return 0;
+}
+arch_initcall(populate_machine);
+
const char *get_system_type(void)
{
return "JZ4740";