From: wens@csie.org (Chen-Yu Tsai)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] ARM: sun6i: dt: Add pin muxing options for GMAC
Date: Thu, 6 Mar 2014 00:27:11 +0800 [thread overview]
Message-ID: <1394036835-22007-2-git-send-email-wens@csie.org> (raw)
In-Reply-To: <1394036835-22007-1-git-send-email-wens@csie.org>
The A31 SoC has a GMAC gigabit ethernet controller supporting
MII, GMII, RGMII modes. Add pin muxing options for these modes.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm/boot/dts/sun6i-a31.dtsi | 42 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index 42f310a..4d2a2bf 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -257,6 +257,48 @@
allwinner,drive = <0>;
allwinner,pull = <0>;
};
+
+ gmac_pins_mii_a: gmac_mii at 0 {
+ allwinner,pins = "PA0", "PA1", "PA2", "PA3",
+ "PA8", "PA9", "PA11",
+ "PA12", "PA13", "PA14", "PA19",
+ "PA20", "PA21", "PA22", "PA23",
+ "PA24", "PA26", "PA27";
+ allwinner,function = "gmac";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
+ gmac_pins_gmii_a: gmac_gmii at 0 {
+ allwinner,pins = "PA0", "PA1", "PA2", "PA3",
+ "PA4", "PA5", "PA6", "PA7",
+ "PA8", "PA9", "PA10", "PA11",
+ "PA12", "PA13", "PA14", "PA15",
+ "PA16", "PA17", "PA18", "PA19",
+ "PA20", "PA21", "PA22", "PA23",
+ "PA24", "PA25", "PA26", "PA27";
+ allwinner,function = "gmac";
+ /*
+ * data lines in GMII mode run at 125MHz and
+ * might need a higher signal drive strength
+ */
+ allwinner,drive = <2>;
+ allwinner,pull = <0>;
+ };
+
+ gmac_pins_rgmii_a: gmac_rgmii at 0 {
+ allwinner,pins = "PA0", "PA1", "PA2", "PA3",
+ "PA9", "PA10", "PA11",
+ "PA12", "PA13", "PA14", "PA19",
+ "PA20", "PA25", "PA26", "PA27";
+ allwinner,function = "gmac";
+ /*
+ * data lines in RGMII mode use DDR mode
+ * and need a higher signal drive strength
+ */
+ allwinner,drive = <3>;
+ allwinner,pull = <0>;
+ };
};
ahb1_rst: reset at 01c202c0 {
--
1.9.0
next prev parent reply other threads:[~2014-03-05 16:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 16:27 [PATCH 0/5] ARM: sun6i: dt: Add support for GMAC Chen-Yu Tsai
2014-03-05 16:27 ` Chen-Yu Tsai [this message]
2014-03-05 16:27 ` [PATCH 2/5] ARM: sun6i: dt: Add GMAC clock node to the A31 DTSI Chen-Yu Tsai
2014-03-05 16:27 ` [PATCH 3/5] ARM: sun6i: dt: Add A31 GMAC gigabit ethernet controller node Chen-Yu Tsai
2014-03-17 15:57 ` Maxime Ripard
2014-03-05 16:27 ` [PATCH 4/5] ARM: sun6i: dt: Add ethernet alias for GMAC Chen-Yu Tsai
2014-03-05 16:27 ` [PATCH 5/5] ARM: sun6i: columbus: Enable the GMAC Chen-Yu Tsai
2014-03-17 15:56 ` [PATCH 0/5] ARM: sun6i: dt: Add support for GMAC Maxime Ripard
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