pinctrl: aspeed-g6: Add NCSI pin group config

Based on the NCSI pin table (Table 181) in NCSI spec[1], the reference
clock output pin (RMIIXRCLKO) is not needed on the management controller
side.

To optimize pin usage, add new NCSI pin group that excludes RMIIXRCLKO,
reducing the number of required pins.

LINK: [1] https://www.dmtf.org/sites/default/files/standards/documents/DSP0222_1.2.0a.pdf

Signed-off-by: Potin Lai <potin.lai.pt@gmail.com>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/20240621093142.698529-3-potin.lai.pt@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c
index 029efe16f8cc29d04942ef4f420c37a25dc2f4b3..6ecc656abc44faa934d71b829beb1d1c5e2c917c 100644 (file)
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c
@@ -249,7 +249,9 @@ PIN_DECL_2(E26, GPIOD3, RGMII3RXD3, RMII3RXER);
 
 FUNC_GROUP_DECL(RGMII3, H24, J22, H22, H23, G22, F22, G23, G24, F23, F26, F25,
                E26);
-FUNC_GROUP_DECL(RMII3, H24, J22, H22, H23, G23, F23, F26, F25, E26);
+GROUP_DECL(RMII3, H24, J22, H22, H23, G23, F23, F26, F25, E26);
+GROUP_DECL(NCSI3, J22, H22, H23, G23, F23, F26, F25, E26);
+FUNC_DECL_2(RMII3, RMII3, NCSI3);
 
 #define F24 28
 SIG_EXPR_LIST_DECL_SESG(F24, NCTS3, NCTS3, SIG_DESC_SET(SCU410, 28));
@@ -355,7 +357,9 @@ FUNC_GROUP_DECL(NRTS4, B24);
 
 FUNC_GROUP_DECL(RGMII4, F24, E23, E24, E25, D26, D24, C25, C26, C24, B26, B25,
                B24);
-FUNC_GROUP_DECL(RMII4, F24, E23, E24, E25, C25, C24, B26, B25, B24);
+GROUP_DECL(RMII4, F24, E23, E24, E25, C25, C24, B26, B25, B24);
+GROUP_DECL(NCSI4, E23, E24, E25, C25, C24, B26, B25, B24);
+FUNC_DECL_2(RMII4, RMII4, NCSI4);
 
 #define D22 40
 SIG_EXPR_LIST_DECL_SESG(D22, SD1CLK, SD1, SIG_DESC_SET(SCU414, 8));
@@ -1977,6 +1981,8 @@ static const struct aspeed_pin_group aspeed_g6_groups[] = {
        ASPEED_PINCTRL_GROUP(MDIO2),
        ASPEED_PINCTRL_GROUP(MDIO3),
        ASPEED_PINCTRL_GROUP(MDIO4),
+       ASPEED_PINCTRL_GROUP(NCSI3),
+       ASPEED_PINCTRL_GROUP(NCSI4),
        ASPEED_PINCTRL_GROUP(NCTS1),
        ASPEED_PINCTRL_GROUP(NCTS2),
        ASPEED_PINCTRL_GROUP(NCTS3),