2 files changed, 39 insertions, 11 deletions
diff --git a/arch/m68k/include/asm/arch-mcf5445x/clock.h b/arch/m68k/include/asm/arch-mcf5445x/clock.h
new file mode 100644
index 00000000000..10ceecafcea
--- /dev/null
+++ b/arch/m68k/include/asm/arch-mcf5445x/clock.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * ColdFire clock support
+ *
+ * Copyright 2026 Kernelspace.
+ * Angelo Dureghello <[email protected]>
+ */
+
+#ifndef __CLOCK_H
+#define __CLOCK_H
+
+/* Stub to use fsl/nxp drivers. */
+enum mxc_clock {
+	MXC_ESDHC_CLK,
+};
+
+int mxc_get_clock(enum mxc_clock clk);
+
+#endif /* __CLOCK_H */
diff --git a/arch/m68k/include/asm/io.h b/arch/m68k/include/asm/io.h
index 35ad4a1c044..2577081d836 100644
--- a/arch/m68k/include/asm/io.h
+++ b/arch/m68k/include/asm/io.h
@@ -23,18 +23,27 @@
 #define __raw_writew(w,addr) ((*(volatile u16 *) (addr)) = (w))
 #define __raw_writel(l,addr) ((*(volatile u32 *) (addr)) = (l))
 
-#define readb(addr)		in_8((volatile u8 *)(addr))
-#define writeb(b,addr)		out_8((volatile u8 *)(addr), (b))
-#if !defined(__BIG_ENDIAN)
-#define readw(addr)		(*(volatile u16 *) (addr))
-#define readl(addr)		(*(volatile u32 *) (addr))
-#define writew(b,addr)		((*(volatile u16 *) (addr)) = (b))
-#define writel(b,addr)		((*(volatile u32 *) (addr)) = (b))
+#define readb(addr)	in_8((volatile u8 *)(addr))
+#define writeb(b, addr)	out_8((volatile u8 *)(addr), (b))
+#ifdef CONFIG_M680x0
+/*
+ * For classic m68k these work the same way as Linux:
+ * Read a little endian value, swap to the CPU endian.
+ */
+#define readw(addr)	in_le16((volatile u16 *)(addr))
+#define readl(addr)	in_le32((volatile u32 *)(addr))
+#define writew(b, addr)	out_le16((volatile u16 *)(addr), (b))
+#define writel(b, addr)	out_le32((volatile u32 *)(addr), (b))
 #else
-#define readw(addr)		in_be16((volatile u16 *)(addr))
-#define readl(addr)		in_be32((volatile u32 *)(addr))
-#define writew(b,addr)		out_be16((volatile u16 *)(addr),(b))
-#define writel(b,addr)		out_be32((volatile u32 *)(addr),(b))
+/*
+ * For coldfire these read a big endian value and use it
+ * as-is. This means that for little endian devices on the
+ * bus like PCI device these won't work as expected currently.
+ */
+#define readw(addr)	in_be16((volatile u16 *)(addr))
+#define readl(addr)	in_be32((volatile u32 *)(addr))
+#define writew(b, addr)	out_be16((volatile u16 *)(addr), (b))
+#define writel(b, addr)	out_be32((volatile u32 *)(addr), (b))
 #endif
 
 /*