From 6242aa137427f6da6ca47e7a8c9a9f78ad63e00d Mon Sep 17 00:00:00 2001
From: Paul Burton <paul.burton@imgtec.com>
Date: Tue, 17 May 2016 07:43:28 +0100
Subject: malta: Use device model & tree for UART

Make use of device model & device tree to probe the UART driver. This is
the initial step in bringing Malta up to date with driver model, and
allows for cleaner handling of the different I/O addresses for different
system controllers by specifying the ISA bus address instead of a
translated memory address.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
---
 arch/mips/Kconfig           |  4 ++++
 arch/mips/dts/Makefile      |  1 +
 arch/mips/dts/mti,malta.dts | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 arch/mips/dts/mti,malta.dts

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index dc34c18..53363e3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -23,7 +23,11 @@ config TARGET_QEMU_MIPS
 
 config TARGET_MALTA
 	bool "Support malta"
+	select DM
+	select DM_SERIAL
 	select DYNAMIC_IO_PORT_BASE
+	select OF_CONTROL
+	select OF_ISA_BUS
 	select SUPPORTS_BIG_ENDIAN
 	select SUPPORTS_LITTLE_ENDIAN
 	select SUPPORTS_CPU_MIPS32_R1
diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index a94b745..2f04d73 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -4,6 +4,7 @@
 
 dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
 dtb-$(CONFIG_TARGET_AP143) += ap143.dtb
+dtb-$(CONFIG_TARGET_MALTA) += mti,malta.dtb
 dtb-$(CONFIG_TARGET_PIC32MZDASK) += pic32mzda_sk.dtb
 dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
 
diff --git a/arch/mips/dts/mti,malta.dts b/arch/mips/dts/mti,malta.dts
new file mode 100644
index 0000000..d339229
--- /dev/null
+++ b/arch/mips/dts/mti,malta.dts
@@ -0,0 +1,32 @@
+/dts-v1/;
+
+/memreserve/ 0x00000000 0x00001000;	/* Exception vectors */
+/memreserve/ 0x000f0000 0x00010000;	/* PIIX4 ISA memory */
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "mti,malta";
+
+	chosen {
+		stdout-path = &uart0;
+	};
+
+	isa@0 {
+		compatible = "isa";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <1 0 0 0x1000>;
+
+		uart0: serial@3f8 {
+			compatible = "ns16550a";
+
+			reg = <1 0x3f8 0x40>;
+			reg-shift = <0>;
+
+			clock-frequency = <1843200>;
+
+			u-boot,dm-pre-reloc;
+		};
+	};
+};
-- 
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