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>,
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 v2] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM
Date: Tue, 9 Mar 2021 21:53:15 +0530 [thread overview]
Message-ID: <20210309162315.22743-1-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>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
---
Link to test log,
https://pastebin.ubuntu.com/p/jDgvyhF9BQ/
Changes since v1:
- Removed the dependency on USB support patches
- Picked up reviewed-by
- Added test logs for SPI EEPROM
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 1f1787750fef..f5a8c5c4c8c3 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -127,6 +127,15 @@
>;
};
+ 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_i2c1_pins_default: main-i2c1-pins-default {
pinctrl-single,pins = <
AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
@@ -227,6 +236,19 @@
status = "disabled";
};
+&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:[~2021-03-09 16:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 16:23 Aswath Govindraju [this message]
2021-03-11 14:17 ` [PATCH v2] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM Nishanth Menon
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