m68k: mcf5441x: create stub to use imx drivers

Some NXP imx hardware ip module as the esdhc controller are exactly the
same in some new ColdFire cpus. For the specific case, mcf5441x needs to
use the existing fsl_esdhc_imx.c driver for the esdhc device.

Create a stub to be able to use NXP "imx" serie drivers as the
fsl_esdhc_imx in the ColdFire architecture.

Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 6ce8f577e3a14cf32abeb8d9ae7d0cab79248b26..00e89bd0a6253fb3be2b61ddc0d1b9e2728fd549 100644 (file)
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -62,6 +62,7 @@ config MCF5441x
        select DM
         select DM_SERIAL
        select ARCH_COLDFIRE
+       select CREATE_ARCH_SYMLINK
        bool
 
 config M680x0

diff --git a/arch/m68k/include/asm/arch-mcf5445x/clock.h b/arch/m68k/include/asm/arch-mcf5445x/clock.h
new file mode 100644 (file)
index 0000000..10ceeca
--- /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 <angelo@kernel-space.org>
+ */
+
+#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/lib/Makefile b/arch/m68k/lib/Makefile
index cf93715637a6c4e8f8ebce0c71077288fd99b04c..9ad67c4272c7233a8ac48640ca0b003978c78074 100644 (file)
--- a/arch/m68k/lib/Makefile
+++ b/arch/m68k/lib/Makefile
@@ -9,3 +9,4 @@ lib-$(CONFIG_USE_PRIVATE_LIBGCC) += lshrdi3.o muldi3.o ashldi3.o ashrdi3.o
 
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
 obj-$(CONFIG_ARCH_COLDFIRE) += cache.o interrupts.o time.o traps.o bdinfo.o fec.o
+obj-$(CONFIG_MCF5441x) += clock.o

diff --git a/arch/m68k/lib/clock.c b/arch/m68k/lib/clock.c
new file mode 100644 (file)
index 0000000..5d9aeed
--- /dev/null
+++ b/arch/m68k/lib/clock.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2026 Kernelspace
+ * Angelo Dureghello <angelo@kernel-space.org>
+ */
+
+#include <config.h>
+#include <asm/arch/clock.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+/*
+ * Stub to use existing nxp/fsl drivers.
+ */
+int mxc_get_clock(enum mxc_clock clk)
+{
+       if (clk == MXC_ESDHC_CLK)
+               return gd->arch.sdhc_clk;
+
+       printf("Unsupported MXC CLK: %d\n", clk);
+
+       return 0;
+}