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From: Marcel Ziswiler <marcel@ziswiler.com>
To: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>
Subject: [PATCH 17/26] ARM: tegra: colibri_t30: enable emmc ddr52 mode
Date: Mon, 23 Jul 2018 14:36:48 +0200	[thread overview]
Message-ID: <20180723123658.980-18-marcel@ziswiler.com> (raw)
In-Reply-To: <20180723123658.980-1-marcel@ziswiler.com>

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Add mmc-ddr-1_8v property enabling eMMC DDR52 mode.

root@colibri-t30:~# cat /sys/kernel/debug/mmc1/ios
clock:          52000000 Hz
actual clock:   52000000 Hz
vdd:            21 (3.3 ~ 3.4 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      3 (8 bits)
timing spec:    8 (mmc DDR52)
signal voltage: 1 (1.80 V)
driver type:    0 (driver type B)
root@colibri-t30:~# hdparm -t /dev/mmcblk1

/dev/mmcblk1:
 Timing buffered disk reads: 222 MB in  3.00 seconds =  73.92 MB/sec

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

---

 arch/arm/boot/dts/tegra30-colibri.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/tegra30-colibri.dtsi b/arch/arm/boot/dts/tegra30-colibri.dtsi
index 0a2115f59e41..14ce77ebf4a5 100644
--- a/arch/arm/boot/dts/tegra30-colibri.dtsi
+++ b/arch/arm/boot/dts/tegra30-colibri.dtsi
@@ -927,6 +927,7 @@
 		non-removable;
 		vmmc-supply = <&reg_module_3v3>; /* VCC */
 		vqmmc-supply = <&reg_1v8_vio>; /* VCCQ */
+		mmc-ddr-1_8v;
 
 		emmc: emmc@0 {
 			reg = <0>;
-- 
2.14.4

  parent reply	other threads:[~2018-07-23 12:36 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-23 12:36 [PATCH 00/26] ARM: dts: tegra: colibri_t30: major revamp Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 01/26] ARM: tegra: colibri_t30: enable broken-hpi on emmc Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 02/26] ARM: tegra: colibri_t30: add local-mac-address property Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 03/26] ARM: tegra: colibri_t30: reorder host1x/hdmi properties Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 04/26] ARM: tegra: colibri_t30: regulator clean-up Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 05/26] ARM: tegra: colibri_t30: add missing regulators Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 06/26] ARM: tegra: colibri_t30: annotate uarts Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 07/26] ARM: tegra: colibri_t30: white-space clean-up Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 08/26] ARM: tegra: colibri_t30: move dr_mode property from phy to controller Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 09/26] ARM: tegra: colibri_t30: reorder backlight properties Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 10/26] ARM: tegra: colibri_t30: drop pwmleds Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 11/26] ARM: tegra: colibri_t30: pinmux clean-up Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 12/26] ARM: tegra: colibri_t30: add missing pinmux Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 13/26] ARM: tegra: colibri_t30: use proper irq-gpio for stmpe811 Marcel Ziswiler
2018-07-26  8:07   ` Stefan Agner
2018-08-29 14:56     ` Marcel Ziswiler
2018-08-29 14:56       ` Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 14/26] ARM: tegra: colibri_t30: further lm95245 temperature sensor annotation Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 15/26] ARM: tegra: colibri_t30: add i2c-thermtrip Marcel Ziswiler
2018-07-25 11:14   ` Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 16/26] ARM: tegra: colibri_t30: add proper emmc vmmc and vqmmc supplies Marcel Ziswiler
2018-07-23 12:36 ` Marcel Ziswiler [this message]
2018-07-23 12:36 ` [PATCH 18/26] ARM: tegra: colibri_t30: rename clk to clock Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 19/26] ARM: tegra: colibri_t30: line break long compatible property line Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 20/26] ARM: tegra: colibri_t30: move input include to carrier board Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 21/26] ARM: tegra: colibri_t30: remove unused nvidia,is-wired property Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 22/26] ARM: tegra: colibri_t30: add gpio hog to unreset usb ethernet chip Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 23/26] ARM: tegra: colibri_t30: enable hda over hdmi Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 24/26] ARM: tegra: colibri_t30: annotate sd card detect Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 25/26] ARM: tegra: colibri_t30: annotate ehci instance 1 Marcel Ziswiler
2018-07-23 12:36 ` [PATCH 26/26] ARM: tegra: colibri_t30: update compatibility comment Marcel Ziswiler

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