2017-12-05 06:48:13

by Vignesh Raghavendra

Subject: [PATCH 0/2] 66AK2G: Add DT entry for UART1 and UART2

This series adds DT entry for the remaining two UART instances on 66AK2G
SoC.

Based on linux-next.

Franklin S Cooper Jr (2):
ARM: dts: keystone-k2g: Add UART 1 and 2 instances
ARM: dts: keystone-k2g-evm: Enable UART 2

arch/arm/boot/dts/keystone-k2g-evm.dts | 13 +++++++++++++
arch/arm/boot/dts/keystone-k2g.dtsi | 29 ++++++++++++++++++++++++++++-
2 files changed, 41 insertions(+), 1 deletion(-)

--
2.15.0

2017-12-05 06:48:21

by Vignesh Raghavendra

Subject: [PATCH 2/2] ARM: dts: keystone-k2g-evm: Enable UART 2

From: Franklin S Cooper Jr <[email protected]>

66AK2G GP EVM has a Baseboard Management Controller (BMC) on board.
This controller handles things like setting the SoCs boot mode along
with controlling the on board character LCD display module.

Enable UART2 which communicates with the BMC. This enables userspace
applications to display something on the onboard LCD controlled by the
BMC.

Signed-off-by: Franklin S Cooper Jr <[email protected]>
Signed-off-by: Vignesh R <[email protected]>
---
arch/arm/boot/dts/keystone-k2g-evm.dts | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g-evm.dts b/arch/arm/boot/dts/keystone-k2g-evm.dts
index 8d100217e38f..9737730ddc21 100644
--- a/arch/arm/boot/dts/keystone-k2g-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2g-evm.dts
@@ -115,6 +115,13 @@
K2G_CORE_IOPAD(0x121c) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_csn0.qspi_csn0 */
>;
};
+
+ uart2_pins: pinmux_uart2_pins {
+ pinctrl-single,pins = <
+ K2G_CORE_IOPAD(0x11ec) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* uart2_rxd.uart2_rxd */
+ K2G_CORE_IOPAD(0x11f0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0) /* uart2_txd.uart2_txd */
+ >;
+ };
};

&uart0 {
@@ -263,3 +270,9 @@
};
};
};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+ status = "okay";
+};
--
2.15.0

2017-12-05 06:48:42

by Vignesh Raghavendra

Subject: [PATCH 1/2] ARM: dts: keystone-k2g: Add UART 1 and 2 instances

From: Franklin S Cooper Jr <[email protected]>

Add DT nodes for two other UART instances of 66AK2G SoC.

Also add power domain and clock domain nodes to UART 0

Signed-off-by: Franklin S Cooper Jr <[email protected]>
Signed-off-by: Vignesh R <[email protected]>
---
arch/arm/boot/dts/keystone-k2g.dtsi | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/keystone-k2g.dtsi b/arch/arm/boot/dts/keystone-k2g.dtsi
index ef82c0a6e607..3c48a9f5c882 100644
--- a/arch/arm/boot/dts/keystone-k2g.dtsi
+++ b/arch/arm/boot/dts/keystone-k2g.dtsi
@@ -28,6 +28,8 @@

aliases {
serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c2 = &i2c2;
@@ -114,7 +116,32 @@
reg-io-width = <4>;
reg = <0x02530c00 0x100>;
interrupts = <GIC_SPI 164 IRQ_TYPE_EDGE_RISING>;
- clock-frequency = <200000000>;
+ clocks = <&k2g_clks 0x2c 0>;
+ power-domains = <&k2g_pds 0x2c>;
+ status = "disabled";
+ };
+
+ uart1: serial@02531000 {
+ compatible = "ti,da830-uart", "ns16550a";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ reg = <0x02531000 0x100>;
+ interrupts = <GIC_SPI 165 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&k2g_clks 0x2d 0>;
+ power-domains = <&k2g_pds 0x2d>;
+ status = "disabled";
+ };
+
+ uart2: serial@02531400 {
+ compatible = "ti,da830-uart", "ns16550a";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ reg = <0x02531400 0x100>;
+ interrupts = <GIC_SPI 166 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&k2g_clks 0x2e 0>;
+ power-domains = <&k2g_pds 0x2e>;
status = "disabled";
};

--
2.15.0

2017-12-06 17:55:10

by Santosh Shilimkar

Subject: Re: [PATCH 0/2] 66AK2G: Add DT entry for UART1 and UART2

On 12/4/17 10:48 PM, Vignesh R wrote:
> This series adds DT entry for the remaining two UART instances on 66AK2G
> SoC.
>
> Based on linux-next.
>
> Franklin S Cooper Jr (2):
> ARM: dts: keystone-k2g: Add UART 1 and 2 instances
> ARM: dts: keystone-k2g-evm: Enable UART 2
>
Applied !!