diff options
| author | Andreas Dannenberg <dannenberg@ti.com> | 2019-08-15 15:55:30 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-10-11 10:07:33 -0400 |
| commit | 20a229676e492d0e105d1ab535dba56f9f470ad0 (patch) | |
| tree | 02cd9b5c39b4425450971e55dea73268ecef4194 /arch/arm/dts | |
| parent | 921b325854dbd198afd994be886095e94d2d4689 (diff) | |
armv7R: dts: k3: am654: Add MCU_UART0 related definitions
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>
Diffstat (limited to 'arch/arm/dts')
| -rw-r--r-- | arch/arm/dts/k3-am654-r5-base-board.dts | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts index 7ed307f0d8..e31ed4fe64 100644 --- a/arch/arm/dts/k3-am654-r5-base-board.dts +++ b/arch/arm/dts/k3-am654-r5-base-board.dts @@ -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 */ |