* [U-Boot] [PATCH 0/2] Refactor EEPROM device tree and add default offset length
@ 2015-02-03 5:13 Masahiro Yamada
2015-02-03 5:13 ` [U-Boot] [PATCH 1/2] ARM: UniPhier: move EEPROM device node into a separate DTS Masahiro Yamada
2015-02-03 5:13 ` [U-Boot] [PATCH 2/2] ARM: UniPhier: set I2C offset length of on-board EEPROM in DTS Masahiro Yamada
0 siblings, 2 replies; 3+ messages in thread
From: Masahiro Yamada @ 2015-02-03 5:13 UTC (permalink / raw)
To: u-boot
Masahiro Yamada (2):
ARM: UniPhier: move EEPROM device node into a separate DTS
ARM: UniPhier: set I2C offset length of on-board EEPROM in DTS
arch/arm/dts/uniphier-ph1-ld4-ref.dts | 5 +----
arch/arm/dts/uniphier-ph1-pro4-ref.dts | 5 +----
arch/arm/dts/uniphier-ph1-sld3-ref.dts | 5 +----
arch/arm/dts/uniphier-ph1-sld8-ref.dts | 5 +----
arch/arm/dts/uniphier-ref-daughter.dtsi | 16 ++++++++++++++++
5 files changed, 20 insertions(+), 16 deletions(-)
create mode 100644 arch/arm/dts/uniphier-ref-daughter.dtsi
--
1.9.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* [U-Boot] [PATCH 1/2] ARM: UniPhier: move EEPROM device node into a separate DTS
2015-02-03 5:13 [U-Boot] [PATCH 0/2] Refactor EEPROM device tree and add default offset length Masahiro Yamada
@ 2015-02-03 5:13 ` Masahiro Yamada
2015-02-03 5:13 ` [U-Boot] [PATCH 2/2] ARM: UniPhier: set I2C offset length of on-board EEPROM in DTS Masahiro Yamada
1 sibling, 0 replies; 3+ messages in thread
From: Masahiro Yamada @ 2015-02-03 5:13 UTC (permalink / raw)
To: u-boot
This EEPROM chip is installed on the expansion board commonly used
on UniPhier platform. To avoid duplicated description, move the
EEPROM node to a separate file and include it from other device tree
sources.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
arch/arm/dts/uniphier-ph1-ld4-ref.dts | 5 +----
arch/arm/dts/uniphier-ph1-pro4-ref.dts | 5 +----
arch/arm/dts/uniphier-ph1-sld3-ref.dts | 5 +----
arch/arm/dts/uniphier-ph1-sld8-ref.dts | 5 +----
arch/arm/dts/uniphier-ref-daughter.dtsi | 15 +++++++++++++++
5 files changed, 19 insertions(+), 16 deletions(-)
create mode 100644 arch/arm/dts/uniphier-ref-daughter.dtsi
diff --git a/arch/arm/dts/uniphier-ph1-ld4-ref.dts b/arch/arm/dts/uniphier-ph1-ld4-ref.dts
index 6855878..48678cc 100644
--- a/arch/arm/dts/uniphier-ph1-ld4-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-ld4-ref.dts
@@ -9,6 +9,7 @@
/dts-v1/;
/include/ "uniphier-ph1-ld4.dtsi"
+/include/ "uniphier-ref-daughter.dtsi"
/ {
model = "Panasonic UniPhier PH1-LD4 Reference Board";
@@ -46,10 +47,6 @@
&i2c0 {
status = "okay";
- eeprom {
- compatible = "i2c-eeprom";
- reg = <0x50>;
- };
};
&usb0 {
diff --git a/arch/arm/dts/uniphier-ph1-pro4-ref.dts b/arch/arm/dts/uniphier-ph1-pro4-ref.dts
index 1227b62..3ba779b 100644
--- a/arch/arm/dts/uniphier-ph1-pro4-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-pro4-ref.dts
@@ -9,6 +9,7 @@
/dts-v1/;
/include/ "uniphier-ph1-pro4.dtsi"
+/include/ "uniphier-ref-daughter.dtsi"
/ {
model = "Panasonic UniPhier PH1-Pro4 Reference Board";
@@ -48,10 +49,6 @@
&i2c0 {
status = "okay";
- eeprom {
- compatible = "i2c-eeprom";
- reg = <0x50>;
- };
};
&usb0 {
diff --git a/arch/arm/dts/uniphier-ph1-sld3-ref.dts b/arch/arm/dts/uniphier-ph1-sld3-ref.dts
index fefc592..4961be8 100644
--- a/arch/arm/dts/uniphier-ph1-sld3-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-sld3-ref.dts
@@ -9,6 +9,7 @@
/dts-v1/;
/include/ "uniphier-ph1-sld3.dtsi"
+/include/ "uniphier-ref-daughter.dtsi"
/ {
model = "Panasonic UniPhier PH1-sLD3 Reference Board";
@@ -45,10 +46,6 @@
&i2c0 {
status = "okay";
- eeprom {
- compatible = "i2c-eeprom";
- reg = <0x50>;
- };
};
&usb0 {
diff --git a/arch/arm/dts/uniphier-ph1-sld8-ref.dts b/arch/arm/dts/uniphier-ph1-sld8-ref.dts
index 9b6d95c..294c3eb 100644
--- a/arch/arm/dts/uniphier-ph1-sld8-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-sld8-ref.dts
@@ -9,6 +9,7 @@
/dts-v1/;
/include/ "uniphier-ph1-sld8.dtsi"
+/include/ "uniphier-ref-daughter.dtsi"
/ {
model = "Panasonic UniPhier PH1-sLD8 Reference Board";
@@ -46,10 +47,6 @@
&i2c0 {
status = "okay";
- eeprom {
- compatible = "i2c-eeprom";
- reg = <0x50>;
- };
};
&usb0 {
diff --git a/arch/arm/dts/uniphier-ref-daughter.dtsi b/arch/arm/dts/uniphier-ref-daughter.dtsi
new file mode 100644
index 0000000..7b681c6
--- /dev/null
+++ b/arch/arm/dts/uniphier-ref-daughter.dtsi
@@ -0,0 +1,15 @@
+/*
+ * Device Tree Source for UniPhier Reference Daughter Board
+ *
+ * Copyright (C) 2014 Panasonic Corporation
+ * Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+&i2c0 {
+ eeprom {
+ compatible = "i2c-eeprom";
+ reg = <0x50>;
+ };
+};
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [U-Boot] [PATCH 2/2] ARM: UniPhier: set I2C offset length of on-board EEPROM in DTS
2015-02-03 5:13 [U-Boot] [PATCH 0/2] Refactor EEPROM device tree and add default offset length Masahiro Yamada
2015-02-03 5:13 ` [U-Boot] [PATCH 1/2] ARM: UniPhier: move EEPROM device node into a separate DTS Masahiro Yamada
@ 2015-02-03 5:13 ` Masahiro Yamada
1 sibling, 0 replies; 3+ messages in thread
From: Masahiro Yamada @ 2015-02-03 5:13 UTC (permalink / raw)
To: u-boot
The EEPROM chip on the UniPhier reference daughter board expects
2-byte offset address.
Since 7132b9fd68a1 (dm: i2c: dts: Support an offset-len device tree
property), I2C sub-nodes can have "u-boot,i2c-offset-len" property.
It is convenient to set the default I2C offset address length in
Device Tree, so that we do not have to set it on the command line.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
arch/arm/dts/uniphier-ref-daughter.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/dts/uniphier-ref-daughter.dtsi b/arch/arm/dts/uniphier-ref-daughter.dtsi
index 7b681c6..2bb7697 100644
--- a/arch/arm/dts/uniphier-ref-daughter.dtsi
+++ b/arch/arm/dts/uniphier-ref-daughter.dtsi
@@ -11,5 +11,6 @@
eeprom {
compatible = "i2c-eeprom";
reg = <0x50>;
+ u-boot,i2c-offset-len = <2>;
};
};
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-02-03 5:13 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2015-02-03 5:13 [U-Boot] [PATCH 0/2] Refactor EEPROM device tree and add default offset length Masahiro Yamada
2015-02-03 5:13 ` [U-Boot] [PATCH 1/2] ARM: UniPhier: move EEPROM device node into a separate DTS Masahiro Yamada
2015-02-03 5:13 ` [U-Boot] [PATCH 2/2] ARM: UniPhier: set I2C offset length of on-board EEPROM in DTS Masahiro Yamada
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