[PATCH 1/2] arm: allwinner: r40: add pinmux settings for MMC3 and UARTs 2, 4, 5&7

[Ivan Uvarov]

The Forlinx OKA40i-C devboard makes use of UARTs 0,2,3,4,5 and 7 of the R40
SoC, of which UART 0 is connected to an RS232 converter, UART 5 routed to
an RS485 converter, and the rest broken out directly via labeled headers.
The board also contains a micro-SD slot connected to SDC3.

This patch adds settings to R40's pinmux node for those UARTs that were not
already mapped, which would allow us to make use of all available UARTs and
the micro-SD slot on this board in a further patch.

The patch also adds the /omit-if-no-ref/ keyword to the existing nodes for
UART0 and UART3 for consistency.

Signed-off-by: Ivan Uvarov <i.uvarov at cognitivepilot.com>

 1 file changed, 43 insertions(+)

diff --git a/arch/arm/dts/sun8i-r40.dtsi b/arch/arm/dts/sun8i-r40.dtsi
index d5ad3b9efd..51031a0e59 100644
--- a/arch/arm/dts/sun8i-r40.dtsi
+++ b/arch/arm/dts/sun8i-r40.dtsi
@@ -357,6 +357,8 @@
 			clock-names = "ahb", "mmc";
 			resets = <&ccu RST_BUS_MMC3>;
 			reset-names = "ahb";
+			pinctrl-0 = <&mmc3_pins>;
+			pinctrl-names = "default";
 			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
 			status = "disabled";
 			#address-cells = <1>;
@@ -601,6 +603,14 @@
 				bias-pull-up;
 			};
 
+			mmc3_pins: mmc3-pins {
+				pins = "PI4", "PI5", "PI6",
+				       "PI7", "PI8", "PI9";
+				function = "mmc3";
+				drive-strength = <30>;
+				bias-pull-up;
+			};
+
 			/omit-if-no-ref/
 			spi0_pc_pins: spi0-pc-pins {
 				pins = "PC0", "PC1", "PC2";
@@ -631,20 +641,53 @@
 				function = "spi1";
 			};
 
+			/omit-if-no-ref/
 			uart0_pb_pins: uart0-pb-pins {
 				pins = "PB22", "PB23";
 				function = "uart0";
 			};
 
+			/omit-if-no-ref/
+			uart2_pi_pins: uart2-pi-pins {
+				pins = "PI18", "PI19";
+				function = "uart2";
+			};
+
+			/omit-if-no-ref/
+			uart2_rts_cts_pi_pins: uart2-rts-cts-pi-pins{
+				pins = "PI16", "PI17";
+				function = "uart2";
+			};
+
+			/omit-if-no-ref/
 			uart3_pg_pins: uart3-pg-pins {
 				pins = "PG6", "PG7";
 				function = "uart3";
 			};
 
+			/omit-if-no-ref/
 			uart3_rts_cts_pg_pins: uart3-rts-cts-pg-pins {
 				pins = "PG8", "PG9";
 				function = "uart3";
 			};
+
+			/omit-if-no-ref/
+			uart4_pg_pins: uart4-pg-pins {
+				pins = "PG10", "PG11";
+				function = "uart4";
+			};
+
+			/omit-if-no-ref/
+			uart5_ph_pins: uart5-ph-pins {
+				pins = "PH6", "PH7";
+				function = "uart5";
+			};
+
+			/omit-if-no-ref/
+			uart7_pi_pins: uart7-pi-pins {
+				pins = "PI20", "PI21";
+				function = "uart7";
+			};
 		};
 
 		wdt: watchdog at 1c20c90 {
-- 
2.32.0