pinctrl: meson: meson8: add the RGMII RXD2/RXD3 and TXD2/TXD3 signals

These are only available on the Meson8m2 SoC (which uses the same
DesignWare Ethernet MAC as Meson8b).
The "eth_tx_clk_50m" signal either provides a 50MHz clock for the RMII
PHYs or the RGMII TX clock (as far as we know the frequency is
controlled by the PRG_ETHERNET registers in the Ethernet MAC "glue" IP
block).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/meson/pinctrl-meson8.c b/drivers/pinctrl/meson/pinctrl-meson8.c
index 086082a..c6d7931 100644 (file)
--- a/drivers/pinctrl/meson/pinctrl-meson8.c
+++ b/drivers/pinctrl/meson/pinctrl-meson8.c
@@ -299,6 +299,10 @@ static const unsigned int spi_mosi_1_pins[]        = { GPIOZ_12 };
 static const unsigned int spi_miso_1_pins[]    = { GPIOZ_13 };
 static const unsigned int spi_ss2_1_pins[]     = { GPIOZ_14 };
 
+static const unsigned int eth_txd3_pins[]      = { GPIOZ_0 };
+static const unsigned int eth_txd2_pins[]      = { GPIOZ_1 };
+static const unsigned int eth_rxd3_pins[]      = { GPIOZ_2 };
+static const unsigned int eth_rxd2_pins[]      = { GPIOZ_3 };
 static const unsigned int eth_tx_clk_50m_pins[]        = { GPIOZ_4 };
 static const unsigned int eth_tx_en_pins[]     = { GPIOZ_5 };
 static const unsigned int eth_txd1_pins[]      = { GPIOZ_6 };
@@ -650,6 +654,12 @@ static struct meson_pmx_group meson8_cbus_groups[] = {
        GROUP(eth_mdio,         6,      6),
        GROUP(eth_mdc,          6,      5),
 
+       /* NOTE: the following four groups are only available on Meson8m2: */
+       GROUP(eth_rxd2,         6,      3),
+       GROUP(eth_rxd3,         6,      2),
+       GROUP(eth_txd2,         6,      1),
+       GROUP(eth_txd3,         6,      0),
+
        GROUP(i2c_sda_a0,       5,      31),
        GROUP(i2c_sck_a0,       5,      30),
 
@@ -877,7 +887,8 @@ static const char * const spi_groups[] = {
 static const char * const ethernet_groups[] = {
        "eth_tx_clk_50m", "eth_tx_en", "eth_txd1",
        "eth_txd0", "eth_rx_clk_in", "eth_rx_dv",
-       "eth_rxd1", "eth_rxd0", "eth_mdio", "eth_mdc"
+       "eth_rxd1", "eth_rxd0", "eth_mdio", "eth_mdc", "eth_rxd2",
+       "eth_rxd3", "eth_txd2", "eth_txd3"
 };
 
 static const char * const i2c_a_groups[] = {