[PATCH 2/2] arm64: dts: imx8mp: Add pinctrl config definitions
From: Maud Spierings via B4 Relay
Date: Fri Feb 14 2025 - 10:59:25 EST
From: Maud Spierings <maudspierings@xxxxxxxxxxxxxx>
Currently to configure each IOMUXC_SW_PAD_CTL_PAD the raw value of this
register is written in the dts, these values are not obvious. Add defines
which describe the fields of this register which can be or-ed together to
produce readable settings.
Signed-off-by: Maud Spierings <maudspierings@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h | 27 ++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h b/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
index 0fef066471ba607be02d0ab15da5a048a8a213a7..8d4d621ad22165ca6c92499b273ec4178780c475 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
+++ b/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
@@ -6,6 +6,33 @@
#ifndef __DTS_IMX8MP_PINFUNC_H
#define __DTS_IMX8MP_PINFUNC_H
+//Drive Strength
+#define MX8MP_DSE_X1 0x0
+#define MX8MP_DSE_X2 0x4
+#define MX8MP_DSE_X4 0x2
+#define MX8MP_DSE_X6 0x6
+
+//Slew Rate
+#define MX8MP_FSEL_FAST 0x10
+#define MX8MP_FSEL_SLOW 0x0
+
+//Open Drain
+#define MX8MP_ODE_ENABLE 0x20
+#define MX8MP_ODE_DISABLE 0x0
+
+#define MX8MP_PULL_DOWN 0x0
+#define MX8MP_PULL_UP 0x40
+
+//Hysteresis
+#define MX8MP_HYS_CMOS 0x0
+#define MX8MP_HYS_SCHMITT 0x80
+
+#define MX8MP_PULL_ENABLE 0x100
+#define MX8MP_PULL_DISABLE 0x0
+
+//?
+#define MX8MP_MYSTERY_BIT 0x40000000
+
/*
* The pin function ID is a tuple of
* <mux_reg conf_reg input_reg mux_mode input_val>
--
2.48.1