[PATCH 4/4] ARM: dts: Add minimal support for dm8168-evm
Tony Lindgren
tony at atomide.com
Tue Jan 13 15:37:52 PST 2015
This allows booting the device with basic functionality.
Note that at least on my revision c board the DDR3 does
not seem to work properly and only some of the memory
can be reliably used.
Also, the mainline u-boot does not seem to properly
initialize the ethernet, so I've been using the old TI
u-boot at:
http://arago-project.org/git/projects/?p=u-boot-omap3.git;a=summary
Cc: Brian Hutchinson <b.hutchman at gmail.com>
Signed-off-by: Tony Lindgren <tony at atomide.com>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/dm8168-evm.dts | 105 +++++++++++++++++++++++++++++++++++++++
2 files changed, 106 insertions(+)
create mode 100644 arch/arm/boot/dts/dm8168-evm.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 91bd5bd..fe15c7a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -348,6 +348,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += am3517-craneboard.dtb \
omap3-sbc-t3730.dtb \
omap3-thunder.dtb \
omap3-zoom3.dtb
+dtb-$(CONFIG_SOC_TI81XX) += dm8168-evm.dtb
dtb-$(CONFIG_SOC_AM33XX) += am335x-base0033.dtb \
am335x-bone.dtb \
am335x-boneblack.dtb \
diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts
new file mode 100644
index 0000000..9acd4ff
--- /dev/null
+++ b/arch/arm/boot/dts/dm8168-evm.dts
@@ -0,0 +1,105 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "dm816x.dtsi"
+
+/ {
+ model = "DM8168 EVM";
+ compatible = "ti,dm8168-evm", "ti,dm8168";
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x40000000 /* 1 GB */
+ 0xc0000000 0x40000000>; /* 1 GB */
+ };
+
+ /* FDC6331L controlled by SD_POW pin */
+ vmmcsd_fixed: fixedregulator at 0 {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmcsd_fixed";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&i2c1 {
+ extgpio0: pcf8575 at 20 {
+ compatible = "nxp,pcf8575";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+};
+
+&i2c2 {
+ extgpio1: pcf8575 at 20 {
+ compatible = "nxp,pcf8575";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+};
+
+&gpmc {
+ ranges = <0 0 0x04000000 0x01000000>; /* CS0: 16MB for NAND */
+
+ nand at 0,0 {
+ linux,mtd-name= "micron,mt29f2g16aadwp";
+ reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ti,nand-ecc-opt = "bch8";
+ nand-bus-width = <16>;
+ gpmc,device-width = <2>;
+ gpmc,sync-clk-ps = <0>;
+ gpmc,cs-on-ns = <0>;
+ gpmc,cs-rd-off-ns = <44>;
+ gpmc,cs-wr-off-ns = <44>;
+ gpmc,adv-on-ns = <6>;
+ gpmc,adv-rd-off-ns = <34>;
+ gpmc,adv-wr-off-ns = <44>;
+ gpmc,we-on-ns = <0>;
+ gpmc,we-off-ns = <40>;
+ gpmc,oe-on-ns = <0>;
+ gpmc,oe-off-ns = <54>;
+ gpmc,access-ns = <64>;
+ gpmc,rd-cycle-ns = <82>;
+ gpmc,wr-cycle-ns = <82>;
+ gpmc,wait-on-read = "true";
+ gpmc,wait-on-write = "true";
+ gpmc,bus-turnaround-ns = <0>;
+ gpmc,cycle2cycle-delay-ns = <0>;
+ gpmc,clk-activation-ns = <0>;
+ gpmc,wait-monitoring-ns = <0>;
+ gpmc,wr-access-ns = <40>;
+ gpmc,wr-data-mux-bus-ns = <0>;
+ partition at 0 {
+ label = "X-Loader";
+ reg = <0 0x80000>;
+ };
+ partition at 0x80000 {
+ label = "U-Boot";
+ reg = <0x80000 0x1c0000>;
+ };
+ partition at 0x1c0000 {
+ label = "Environment";
+ reg = <0x240000 0x40000>;
+ };
+ partition at 0x280000 {
+ label = "Kernel";
+ reg = <0x280000 0x500000>;
+ };
+ partition at 0x780000 {
+ label = "Filesystem";
+ reg = <0x780000 0xf880000>;
+ };
+ };
+};
+
+&mmc1 {
+ vmmc-supply = <&vmmcsd_fixed>;
+};
--
2.1.4
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