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arm: dts: k3-am654-base-board: Enable wkup_i2c0 across all boot stages

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To enable the use of an EEPROM-based board detection scheme we need to
be able to access the I2C bus associated with the EEPROMs across all
3 stages of U-Boot: R5 SPL, A53 SPL, and A53 U-Boot (proper). So go
ahead and add/update the wkup_i2c0 peripheral module DTS definitions
and its associated pinmux node accordingly.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Andreas Dannenberg
2019-06-04 18:08:15 -05:00
committed by Tom Rini
parent bbe59169ee
commit 7e0363b285
4 changed files with 41 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/dts/k3-am65.dtsi
View File

@@ -8,6 +8,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/pinctrl/k3.h>
/ {
model = "Texas Instruments K3 AM654 SoC";

12
arch/arm/dts/k3-am654-base-board-u-boot.dtsi
View File

@@ -222,6 +222,14 @@
u-boot,dm-spl;
};
&wkup_pmx0 {
u-boot,dm-spl;
wkup_i2c0_pins_default {
u-boot,dm-spl;
};
};
&main_pmx0 {
u-boot,dm-spl;
main_uart0_pins_default: main_uart0_pins_default {
@@ -349,3 +357,7 @@
reg-names = "gmii-sel";
};
};
&wkup_i2c0 {
u-boot,dm-spl;
};

15
arch/arm/dts/k3-am654-base-board.dts
View File

@@ -55,6 +55,15 @@
};
};
&wkup_pmx0 {
wkup_i2c0_pins_default: wkup-i2c0-pins-default {
pinctrl-single,pins = <
AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */
AM65X_WKUP_IOPAD(0x00e4, PIN_INPUT, 0) /* (AD6) WKUP_I2C0_SDA */
>;
};
};
&sdhci0 {
pinctrl-names = "default";
pinctrl-0 = <&main_mmc0_pins_default>;
@@ -62,3 +71,9 @@
non-removable;
ti,driver-strength-ohm = <50>;
};
&wkup_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&wkup_i2c0_pins_default>;
clock-frequency = <400000>;
};

13
arch/arm/dts/k3-am654-r5-base-board.dts
View File

@@ -136,6 +136,13 @@
>;
u-boot,dm-spl;
};
wkup_i2c0_pins_default: wkup-i2c0-pins-default {
pinctrl-single,pins = <
AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */
AM65X_WKUP_IOPAD(0x00e4, PIN_INPUT, 0) /* (AD6) WKUP_I2C0_SDA */
>;
};
};
&main_pmx0 {
@@ -176,3 +183,9 @@
/delete-property/ power-domains;
ti,driver-strength-ohm = <50>;
};
&wkup_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&wkup_i2c0_pins_default>;
clock-frequency = <400000>;
};