From: Aswath Govindraju <a-govindraju@ti.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
Lokesh Vutla <lokeshvutla@ti.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Aswath Govindraju <a-govindraju@ti.com>,
Nishanth Menon <nm@ti.com>, Tero Kristo <kristo@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM
Date: Mon, 1 Mar 2021 11:35:18 +0530 [thread overview]
Message-ID: <20210301060518.19550-1-a-govindraju@ti.com> (raw)
Add pinmux details and device tree node for the EEPROM attached to SPI0
module in main domain.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
This patch depends on,
https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210301055109.17626-3-a-govindraju@ti.com/
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index bfd849a29655..bc5bd7f896ab 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -139,6 +139,15 @@
AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */
>;
};
+
+ main_spi0_pins_default: main-spi0-pins-default {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0210, PIN_INPUT, 0) /* (D13) SPI0_CLK */
+ AM64X_IOPAD(0x0208, PIN_OUTPUT, 0) /* (D12) SPI0_CS0 */
+ AM64X_IOPAD(0x0214, PIN_OUTPUT, 0) /* (A13) SPI0_D0 */
+ AM64X_IOPAD(0x0218, PIN_INPUT, 0) /* (A14) SPI0_D1 */
+ >;
+ };
};
&main_uart0 {
@@ -245,6 +254,19 @@
pinctrl-0 = <&main_usb0_pins_default>;
};
+&main_spi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_spi0_pins_default>;
+ ti,pindir-d0-out-d1-in = <1>;
+ eeprom@0 {
+ compatible = "microchip,93lc46b";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cs-high;
+ data-size = <16>;
+ };
+};
+
&sdhci0 {
/* emmc */
bus-width = <8>;
--
2.17.1
next reply other threads:[~2021-03-01 6:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-01 6:05 Aswath Govindraju [this message]
2021-03-09 14:48 ` [PATCH] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM Vignesh Raghavendra
2021-03-09 14:54 ` Nishanth Menon
2021-03-09 15:25 ` Aswath Govindraju
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