dt-bindings: pinctrl: Add bindings for Raspberry Pi RP1

Signed-off-by: Phil Elwell <phil@raspberrypi.com>

diff --git a/include/dt-bindings/pinctrl/rp1.h b/include/dt-bindings/pinctrl/rp1.h
new file mode 100644 (file)
index 0000000..f3fa7f5
--- /dev/null
+++ b/include/dt-bindings/pinctrl/rp1.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Header providing constants for RP1 pinctrl bindings.
+ *
+ * Copyright (C) 2019-2022 Raspberry Pi Ltd.
+ */
+
+#ifndef __DT_BINDINGS_PINCTRL_RP1_H__
+#define __DT_BINDINGS_PINCTRL_RP1_H__
+
+/* brcm,function property */
+#define RP1_FSEL_GPIO_IN       0
+#define RP1_FSEL_GPIO_OUT      1
+#define RP1_FSEL_ALT0_LEGACY   4
+#define RP1_FSEL_ALT1_LEGACY   5
+#define RP1_FSEL_ALT2_LEGACY   6
+#define RP1_FSEL_ALT3_LEGACY   7
+#define RP1_FSEL_ALT4_LEGACY   3
+#define RP1_FSEL_ALT5_LEGACY   2
+#define RP1_FSEL_ALT0          0x08
+#define RP1_FSEL_ALT0INV       0x09
+#define RP1_FSEL_ALT1          0x0a
+#define RP1_FSEL_ALT1INV       0x0b
+#define RP1_FSEL_ALT2          0x0c
+#define RP1_FSEL_ALT2INV       0x0d
+#define RP1_FSEL_ALT3          0x0e
+#define RP1_FSEL_ALT3INV       0x0f
+#define RP1_FSEL_ALT4          0x10
+#define RP1_FSEL_ALT4INV       0x11
+#define RP1_FSEL_ALT5          0x12
+#define RP1_FSEL_ALT5INV       0x13
+#define RP1_FSEL_ALT6          0x14
+#define RP1_FSEL_ALT6INV       0x15
+#define RP1_FSEL_ALT7          0x16
+#define RP1_FSEL_ALT7INV       0x17
+#define RP1_FSEL_ALT8          0x18
+#define RP1_FSEL_ALT8INV       0x19
+#define RP1_FSEL_NONE          0x1a
+
+/* brcm,pull property */
+#define RP1_PUD_OFF            0
+#define RP1_PUD_DOWN           1
+#define RP1_PUD_UP             2
+#define RP1_PUD_KEEP           3
+
+#endif /* __DT_BINDINGS_PINCTRL_RP1_H__ */