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Date: Wed, 4 Feb 2015 15:21:31 +0000
From: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
To: <linux-mips@...ux-mips.org>
CC: <devicetree@...r.kernel.org>, <linux-serial@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <Zubair.Kakakhel@...tec.com>,
<gregkh@...uxfoundation.org>, <mturquette@...aro.org>,
<sboyd@...eaurora.org>, <ralf@...ux-mips.org>, <jslaby@...e.cz>,
<tglx@...utronix.de>, <jason@...edaemon.net>, <lars@...afoo.de>,
<paul.burton@...tec.com>
Subject: [PATCH_V2 02/34] MIPS: jz4740: require & include DT
From: Paul Burton <paul.burton@...tec.com>
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@...tec.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>
---
arch/mips/Kconfig | 2 ++
arch/mips/boot/dts/Makefile | 1 +
arch/mips/boot/dts/jz4740.dtsi | 5 +++++
arch/mips/boot/dts/qi_lb60.dts | 7 +++++++
arch/mips/jz4740/setup.c | 19 +++++++++++++++++++
5 files changed, 34 insertions(+)
create mode 100644 arch/mips/boot/dts/jz4740.dtsi
create mode 100644 arch/mips/boot/dts/qi_lb60.dts
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3289969..99d50cd 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -288,6 +288,8 @@ config MACH_JZ4740
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 4f49fa4..a1127f3 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -9,6 +9,7 @@ dtb-$(CONFIG_DTB_RT2880_EVAL) += rt2880_eval.dtb
dtb-$(CONFIG_DTB_RT305X_EVAL) += rt3052_eval.dtb
dtb-$(CONFIG_DTB_RT3883_EVAL) += rt3883_eval.dtb
dtb-$(CONFIG_DTB_MT7620A_EVAL) += mt7620a_eval.dtb
+dtb-$(CONFIG_JZ4740_QI_LB60) += qi_lb60.dtb
dtb-$(CONFIG_MIPS_SEAD3) += sead3.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
diff --git a/arch/mips/boot/dts/jz4740.dtsi b/arch/mips/boot/dts/jz4740.dtsi
new file mode 100644
index 0000000..c538691f
--- /dev/null
+++ b/arch/mips/boot/dts/jz4740.dtsi
@@ -0,0 +1,5 @@
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ingenic,jz4740";
+};
diff --git a/arch/mips/boot/dts/qi_lb60.dts b/arch/mips/boot/dts/qi_lb60.dts
new file mode 100644
index 0000000..0c0f639
--- /dev/null
+++ b/arch/mips/boot/dts/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 ef796f9..d6bb7a3 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";
--
1.9.1
--
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