From 625177d27ed9e91cb96c0221b8020f7e4d24bfb6 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Wed, 26 Nov 2014 18:34:00 +0900
Subject: [PATCH] serial: UniPhier: support OF configuration
This commit implements the ofdata_to_platdata handler for the UniPhier
serial driver and adds serial device nodes to the device tree sources.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
arch/arm/dts/uniphier-ph1-ld4-ref.dts | 9 +++++++++
arch/arm/dts/uniphier-ph1-ld4.dtsi | 28 ++++++++++++++++++++++++++
arch/arm/dts/uniphier-ph1-pro4-ref.dts | 9 +++++++++
arch/arm/dts/uniphier-ph1-pro4.dtsi | 28 ++++++++++++++++++++++++++
arch/arm/dts/uniphier-ph1-sld8-ref.dts | 9 +++++++++
arch/arm/dts/uniphier-ph1-sld8.dtsi | 28 ++++++++++++++++++++++++++
drivers/serial/serial_uniphier.c | 19 +++++++++--------
7 files changed, 122 insertions(+), 8 deletions(-)
diff --git a/arch/arm/dts/uniphier-ph1-ld4-ref.dts b/arch/arm/dts/uniphier-ph1-ld4-ref.dts
index bc8ead4fda..20b0583143 100644
--- a/arch/arm/dts/uniphier-ph1-ld4-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-ld4-ref.dts
@@ -21,5 +21,14 @@
chosen {
bootargs = "console=ttyPS0,115200 earlyprintk";
+ stdout-path = &uart0;
};
};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
diff --git a/arch/arm/dts/uniphier-ph1-ld4.dtsi b/arch/arm/dts/uniphier-ph1-ld4.dtsi
index ee53d9c194..c1c2c62b79 100644
--- a/arch/arm/dts/uniphier-ph1-ld4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-ld4.dtsi
@@ -28,5 +28,33 @@
#address-cells = <1>;
#size-cells = <1>;
ranges;
+
+ uart0: serial@54006800 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006800 0x20>;
+ clock-frequency = <36864000>;
+ };
+
+ uart1: serial@54006900 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006900 0x20>;
+ clock-frequency = <36864000>;
+ };
+
+ uart2: serial@54006a00 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006a00 0x20>;
+ clock-frequency = <36864000>;
+ };
+
+ uart3: serial@54006b00 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006b00 0x20>;
+ clock-frequency = <36864000>;
+ };
};
};
diff --git a/arch/arm/dts/uniphier-ph1-pro4-ref.dts b/arch/arm/dts/uniphier-ph1-pro4-ref.dts
index 03091a897a..b42c9c8098 100644
--- a/arch/arm/dts/uniphier-ph1-pro4-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-pro4-ref.dts
@@ -21,5 +21,14 @@
chosen {
bootargs = "console=ttyPS0,115200 earlyprintk";
+ stdout-path = &uart0;
};
};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
diff --git a/arch/arm/dts/uniphier-ph1-pro4.dtsi b/arch/arm/dts/uniphier-ph1-pro4.dtsi
index 7619c36a2f..b53fbc5161 100644
--- a/arch/arm/dts/uniphier-ph1-pro4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-pro4.dtsi
@@ -34,5 +34,33 @@
#address-cells = <1>;
#size-cells = <1>;
ranges;
+
+ uart0: serial@54006800 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006800 0x20>;
+ clock-frequency = <73728000>;
+ };
+
+ uart1: serial@54006900 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006900 0x20>;
+ clock-frequency = <73728000>;
+ };
+
+ uart2: serial@54006a00 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006a00 0x20>;
+ clock-frequency = <73728000>;
+ };
+
+ uart3: serial@54006b00 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006b00 0x20>;
+ clock-frequency = <73728000>;
+ };
};
};
diff --git a/arch/arm/dts/uniphier-ph1-sld8-ref.dts b/arch/arm/dts/uniphier-ph1-sld8-ref.dts
index e7969afe8c..6f898a3a96 100644
--- a/arch/arm/dts/uniphier-ph1-sld8-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-sld8-ref.dts
@@ -21,5 +21,14 @@
chosen {
bootargs = "console=ttyPS0,115200 earlyprintk";
+ stdout-path = &uart0;
};
};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
diff --git a/arch/arm/dts/uniphier-ph1-sld8.dtsi b/arch/arm/dts/uniphier-ph1-sld8.dtsi
index 2f895e91db..9a8da5e442 100644
--- a/arch/arm/dts/uniphier-ph1-sld8.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld8.dtsi
@@ -28,5 +28,33 @@
#address-cells = <1>;
#size-cells = <1>;
ranges;
+
+ uart0: serial@54006800 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006800 0x20>;
+ clock-frequency = <80000000>;
+ };
+
+ uart1: serial@54006900 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006900 0x20>;
+ clock-frequency = <80000000>;
+ };
+
+ uart2: serial@54006a00 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006a00 0x20>;
+ clock-frequency = <80000000>;
+ };
+
+ uart3: serial@54006b00 {
+ compatible = "panasonic,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006b00 0x20>;
+ clock-frequency = <80000000>;
+ };
};
};
diff --git a/drivers/serial/serial_uniphier.c b/drivers/serial/serial_uniphier.c
index 6046efb51f..e8a1608b99 100644
--- a/drivers/serial/serial_uniphier.c
+++ b/drivers/serial/serial_uniphier.c
@@ -11,6 +11,7 @@
#include <dm/device.h>
#include <dm/platform_data/serial-uniphier.h>
#include <serial.h>
+#include <fdtdec.h>
#define UART_REG(x) \
u8 x; \
@@ -113,19 +114,21 @@ static int uniphier_serial_remove(struct udevice *dev)
}
#ifdef CONFIG_OF_CONTROL
-static const struct udevice_id uniphier_uart_of_match = {
- { .compatible = "panasonic,uniphier-uart"},
+static const struct udevice_id uniphier_uart_of_match[] = {
+ { .compatible = "panasonic,uniphier-uart" },
{},
};
static int uniphier_serial_ofdata_to_platdata(struct udevice *dev)
{
- /*
- * TODO: Masahiro Yamada (yamada.m@jp.panasonic.com)
- *
- * Implement conversion code from DTB to platform data
- * when supporting CONFIG_OF_CONTROL on UniPhir platform.
- */
+ struct uniphier_serial_platform_data *plat = dev_get_platdata(dev);
+ DECLARE_GLOBAL_DATA_PTR;
+
+ plat->base = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg");
+ plat->uartclk = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+ "clock-frequency", 0);
+
+ return 0;
}
#endif
--
2.39.5