ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM

Add pinmux configurations for RGMII based CPSW ethernet to am335x-evm.

Default mode is nothing but the values required for the module during
active state. With this configurations module is functional as
expected.

Sleep mode is nothing but the values required for the module during
inactive state. The pins are configured to its reset state to optimize
energy usage for the pins for the suspend/resume cycle

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index a150d0441b5ed4dfd34a0dc57c88d00a05db9b27..a16bb9691cc6832b84e48564781234b17a13f6e5 100644 (file)
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -97,6 +97,58 @@
                                0x164 0x0       /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
                        >;
                };
+
+               cpsw_default: cpsw_default {
+                       pinctrl-single,pins = <
+                               /* Slave 1 */
+                               0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txen.rgmii1_tctl */
+                               0x118 (PIN_INPUT_PULLDOWN | MUX_MODE2)  /* mii1_rxdv.rgmii1_rctl */
+                               0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd3.rgmii1_td3 */
+                               0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd2.rgmii1_td2 */
+                               0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd1.rgmii1_td1 */
+                               0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd0.rgmii1_td0 */
+                               0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txclk.rgmii1_tclk */
+                               0x130 (PIN_INPUT_PULLDOWN | MUX_MODE2)  /* mii1_rxclk.rgmii1_rclk */
+                               0x134 (PIN_INPUT_PULLDOWN | MUX_MODE2)  /* mii1_rxd3.rgmii1_rd3 */
+                               0x138 (PIN_INPUT_PULLDOWN | MUX_MODE2)  /* mii1_rxd2.rgmii1_rd2 */
+                               0x13c (PIN_INPUT_PULLDOWN | MUX_MODE2)  /* mii1_rxd1.rgmii1_rd1 */
+                               0x140 (PIN_INPUT_PULLDOWN | MUX_MODE2)  /* mii1_rxd0.rgmii1_rd0 */
+                       >;
+               };
+
+               cpsw_sleep: cpsw_sleep {
+                       pinctrl-single,pins = <
+                               /* Slave 1 reset value */
+                               0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                       >;
+               };
+
+               davinci_mdio_default: davinci_mdio_default {
+                       pinctrl-single,pins = <
+                               /* MDIO */
+                               0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)    /* mdio_data.mdio_data */
+                               0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)                   /* mdio_clk.mdio_clk */
+                       >;
+               };
+
+               davinci_mdio_sleep: davinci_mdio_sleep {
+                       pinctrl-single,pins = <
+                               /* MDIO reset value */
+                               0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                               0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                       >;
+               };
        };
 
        ocp {
@@ -401,6 +453,18 @@
        };
 };
 
+&mac {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&cpsw_default>;
+       pinctrl-1 = <&cpsw_sleep>;
+};
+
+&davinci_mdio {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&davinci_mdio_default>;
+       pinctrl-1 = <&davinci_mdio_sleep>;
+};
+
 &cpsw_emac0 {
        phy_id = <&davinci_mdio>, <0>;
 };