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From: Chen-Yu Tsai <wens@csie.org>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>, Hans de Goede <hdegoede@redhat.com>,
	linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: [PATCH RFC 15/15] ARM: dts: sun9i: cubieboard4: Enable hardware reset and HS-DDR for eMMC
Date: Thu, 21 Jan 2016 13:26:42 +0800	[thread overview]
Message-ID: <1453354002-28366-16-git-send-email-wens@csie.org> (raw)
In-Reply-To: <1453354002-28366-1-git-send-email-wens@csie.org>

mmc2 has a special pin for eMMC hardware reset, which is controllable
from the controller. Add the "mmc-cap-hw-reset" property to denote that
this controller supports this function, and the pins are actually used.

Also increase the signal drive strength for mmc2 pins, for HS-DDR mode
support.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun9i-a80-cubieboard4.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
index 382bd9fc5647..eb2ccd0a3bd5 100644
--- a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
+++ b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
@@ -111,9 +111,15 @@
 	vmmc-supply = <&reg_vcc3v0>;
 	bus-width = <8>;
 	non-removable;
+	cap-mmc-hw-reset;
 	status = "okay";
 };
 
+&mmc2_8bit_pins {
+	/* Increase drive strength for DDR modes */
+	allwinner,drive = <SUN4I_PINCTRL_40_MA>;
+};
+
 &r_ir {
 	status = "okay";
 };
-- 
2.7.0.rc3

  parent reply	other threads:[~2016-01-21  5:35 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-21  5:26 [PATCH RFC 00/15] mmc: sunxi: Support vqmmc regulator and eMMC DDR modes Chen-Yu Tsai
2016-01-21  5:26 ` [PATCH RFC 01/15] mmc: sunxi: Document host init sequence Chen-Yu Tsai
2016-01-29 11:39   ` Ulf Hansson
2016-01-21  5:26 ` [PATCH RFC 02/15] mmc: sunxi: Return error on mmc_regulator_set_ocr() fail in .set_ios op Chen-Yu Tsai
2016-01-29 11:40   ` Ulf Hansson
2016-01-21  5:26 ` [PATCH RFC 03/15] mmc: sunxi: Block signal voltage switching (CMD11) Chen-Yu Tsai
2016-01-29 10:42   ` Ulf Hansson
2016-01-29 14:44     ` Chen-Yu Tsai
2016-01-21  5:26 ` [PATCH RFC 04/15] mmc: sunxi: Support vqmmc regulator Chen-Yu Tsai
2016-01-29 11:40   ` Ulf Hansson
2016-01-21  5:26 ` [PATCH RFC 05/15] mmc: sunxi: Support MMC_DDR52 timing modes Chen-Yu Tsai
2016-01-21 11:14   ` Hans de Goede
2016-01-21 11:55     ` Chen-Yu Tsai
2016-01-21 12:26       ` Hans de Goede
2016-01-21  5:26 ` [PATCH RFC 06/15] mmc: sunxi: Support 8 bit eMMC DDR transfer modes Chen-Yu Tsai
2016-01-21  5:26 ` [PATCH RFC 07/15] mmc: sunxi: Enable eMMC HS-DDR (MMC_CAP_1_8V_DDR) support Chen-Yu Tsai
2016-01-21  5:26 ` [PATCH RFC 08/15] ARM: dts: sun6i: Add mmc3 pins for 8 bit emmc Chen-Yu Tsai
2016-01-22 20:31   ` Maxime Ripard
2016-01-23 11:04     ` Chen-Yu Tsai
2016-01-24 16:54       ` Maxime Ripard
2016-01-21  5:26 ` [PATCH RFC 09/15] ARM: dts: sun6i: sina31s: Switch to mmc3 for onboard eMMC Chen-Yu Tsai
2016-01-21 11:16   ` Hans de Goede
2016-01-21 12:23     ` Chen-Yu Tsai
2016-01-21 12:25       ` Hans de Goede
2016-01-21 12:28         ` Chen-Yu Tsai
2016-01-21 12:38           ` Hans de Goede
2016-01-22 20:39   ` Maxime Ripard
2016-01-23  4:21     ` Chen-Yu Tsai
2016-01-24 16:56       ` Maxime Ripard
2016-01-21  5:26 ` [PATCH RFC 10/15] ARM: dts: sun8i: Include SDC2_RST pin in mmc2_8bit_pins Chen-Yu Tsai
2016-01-24 16:58   ` Maxime Ripard
2016-01-21  5:26 ` [PATCH RFC 11/15] ARM: dts: sun8i: sina33: Enable hardware reset and HS-DDR for eMMC Chen-Yu Tsai
2016-01-22 20:42   ` Maxime Ripard
2016-01-21  5:26 ` [PATCH RFC 12/15] ARM: dts: sun9i: Use sun9i specific mmc compatible Chen-Yu Tsai
2016-01-22 20:44   ` Maxime Ripard
2016-01-23 10:50     ` Chen-Yu Tsai
2016-01-21  5:26 ` [PATCH RFC 13/15] ARM: dts: sun9i: Include SDC2_RST pin in mmc2_8bit_pins Chen-Yu Tsai
2016-01-24 16:58   ` Maxime Ripard
2016-01-21  5:26 ` [PATCH RFC 14/15] ARM: dts: sun9i: a80-optimus: Enable hardware reset and HS-DDR for eMMC Chen-Yu Tsai
2016-01-24 16:59   ` Maxime Ripard
2016-01-21  5:26 ` Chen-Yu Tsai [this message]
2016-01-24 16:59   ` [PATCH RFC 15/15] ARM: dts: sun9i: cubieboard4: " Maxime Ripard
2016-01-21 11:19 ` [PATCH RFC 00/15] mmc: sunxi: Support vqmmc regulator and eMMC DDR modes Hans de Goede

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