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armv7R: dts: k3: am654: Add MCU_UART0 related definitions

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Although we currently use the MAIN_UART0 for R5 SPL console output there
are cases where we require access to the MCU_UART0 as well for example in
case of UART-based Y-Modem boot. To support these scenarios add related
DTS definitions to be able to use that UART early on.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
This commit is contained in:
Andreas Dannenberg 2019-08-15 15:55:30 -05:00 committed by Tom Rini
parent 921b325854
commit 20a229676e
1 changed files with 19 additions and 0 deletions
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19
arch/arm/dts/k3-am654-r5-base-board.dts
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@ -16,6 +16,7 @@
aliases {
serial0 = &wkup_uart0;
serial1 = &mcu_uart0;
serial2 = &main_uart0;
};
@ -118,6 +119,14 @@
status = "okay";
};
&mcu_uart0 {
u-boot,dm-spl;
pinctrl-names = "default";
pinctrl-0 = <&mcu_uart0_pins_default>;
clock-frequency = <48000000>;
status = "okay";
};
&main_uart0 {
power-domains = <&k3_pds 146 TI_SCI_PD_SHARED>;
};
@ -141,6 +150,16 @@
u-boot,dm-spl;
};
mcu_uart0_pins_default: mcu_uart0_pins_default {
pinctrl-single,pins = <
AM65X_WKUP_IOPAD(0x0044, PIN_INPUT, 4) /* (P4) MCU_OSPI1_D1.MCU_UART0_RXD */
AM65X_WKUP_IOPAD(0x0048, PIN_OUTPUT, 4) /* (P5) MCU_OSPI1_D2.MCU_UART0_TXD */
AM65X_WKUP_IOPAD(0x004C, PIN_INPUT, 4) /* (P1) MCU_OSPI1_D3.MCU_UART0_CTSn */
AM65X_WKUP_IOPAD(0x0054, PIN_OUTPUT, 4) /* (N3) MCU_OSPI1_CSn1.MCU_UART0_RTSn */
>;
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 */