From: Faiz Abbas <faiz_abbas@ti.com>
To: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Cc: <will@kernel.org>, <robh+dt@kernel.org>, <nm@ti.com>,
<t-kristo@ti.com>, <faiz_abbas@ti.com>
Subject: [PATCH 6/8] arm64: dts: ti: k3-j7200-common-proc-board: Add support SD card UHS modes
Date: Fri, 2 Oct 2020 00:35:39 +0530 [thread overview]
Message-ID: <20201001190541.6364-7-faiz_abbas@ti.com> (raw)
In-Reply-To: <20201001190541.6364-1-faiz_abbas@ti.com>
Add support for UHS modes for the SD card connected at sdhci1. This
involves adding regulators for voltage switching and power cycling the
SD card and removing the no-1-8-v property.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
.../dts/ti/k3-j7200-common-proc-board.dts | 32 +++++++++++++++++++
arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 1 -
2 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index 50d330245a42..02112c2a63e9 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -7,12 +7,36 @@
#include "k3-j7200-som-p0.dtsi"
#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/gpio/gpio.h>
/ {
chosen {
stdout-path = "serial2:115200n8";
bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
};
+
+ vdd_mmc1: fixedregulator-sd {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_mmc1";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ enable-active-high;
+ gpios = <&exp2 2 GPIO_ACTIVE_HIGH>;
+ };
+
+ vdd_sd_dv: gpio-regulator-vdd-sd-dv {
+ compatible = "regulator-gpio";
+ regulator-name = "vdd_sd_dv";
+ pinctrl-names = "default";
+ pinctrl-0 = <&vdd_sd_dv_pins_default>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ gpios = <&main_gpio0 55 GPIO_ACTIVE_HIGH>;
+ states = <1800000 0x0
+ 3300000 0x1>;
+ };
};
&wkup_pmx0 {
@@ -68,6 +92,12 @@
J721E_IOPAD(0xe4, PIN_INPUT, 8) /* (V1) TIMER_IO0.MMC1_SDCD */
>;
};
+
+ vdd_sd_dv_pins_default: vdd_sd_dv_pins_default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0xd0, PIN_INPUT, 7) /* (T5) SPI0_D1.GPIO0_55 */
+ >;
+ };
};
&wkup_uart0 {
@@ -196,6 +226,8 @@
&main_sdhci1 {
/* SD card */
+ vmmc-supply = <&vdd_mmc1>;
+ vqmmc-supply = <&vdd_sd_dv>;
pinctrl-0 = <&main_mmc1_pins_default>;
pinctrl-names = "default";
ti,driver-strength-ohm = <50>;
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index f21f22237e0f..7307a94f7f3e 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -392,7 +392,6 @@
ti,otap-del-sel-sdr50 = <0xc>;
ti,otap-del-sel-sdr104 = <0x5>;
ti,otap-del-sel-ddr50 = <0xc>;
- no-1-8-v;
dma-coherent;
};
--
2.17.1
next prev parent reply other threads:[~2020-10-01 19:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-01 19:05 [PATCH 0/8] Add support for UHS modes in TI's J721e and J7200 boards Faiz Abbas
2020-10-01 19:05 ` [PATCH 1/8] arm64: dts: ti: k3-j7200-main: Add gpio nodes in main domain Faiz Abbas
2020-10-01 19:05 ` [PATCH 2/8] arm64: dts: ti: k3-j7200: Add gpio nodes in wakeup domain Faiz Abbas
2020-10-01 19:05 ` [PATCH 3/8] arm64: dts: ti: k3-j7200-common-proc-board: Disable unused gpio modules Faiz Abbas
2020-10-01 19:05 ` [PATCH 4/8] arm64: dts: ti: k3-j721e-main: Add output tap delay values Faiz Abbas
2020-10-01 19:05 ` [PATCH 5/8] arm64: dts: ti: k3-j721e-common-proc-board: Add support SD card UHS modes Faiz Abbas
2020-10-01 19:05 ` Faiz Abbas [this message]
2020-10-01 19:13 ` [PATCH 0/8] Add support for UHS modes in TI's J721e and J7200 boards Nishanth Menon
2020-10-02 4:44 ` Faiz Abbas
2020-10-02 12:49 ` Nishanth Menon
2020-10-02 16:09 ` Faiz Abbas
2020-10-26 14:55 ` Nishanth Menon
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