powerpc/85xx: p2020: Move all P2020 DS machine descriptions to p2020.c

This moves P2020 DS machine descriptions into new p2020.c source file.
This is preparation for code de-duplication and providing one unified
machine description for all P2020 boards.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230408140122.25293-8-pali@kernel.org

arch/powerpc/platforms/85xx/Makefile

@@ -16,7 +16,7 @@ obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
 obj-$(CONFIG_MPC8536_DS)  += mpc8536_ds.o
-obj-$(CONFIG_MPC85xx_DS)  += mpc85xx_ds.o
+obj-$(CONFIG_MPC85xx_DS)  += mpc85xx_ds.o p2020.o
 obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
 obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o
 obj-$(CONFIG_P1010_RDB)   += p1010rdb.o

arch/powerpc/platforms/85xx/mpc85xx.h

@@ -15,4 +15,7 @@ extern void mpc85xx_qe_par_io_init(void);
 static inline void __init mpc85xx_qe_par_io_init(void) {}
 #endif
 
+void __init mpc85xx_ds_pic_init(void);
+void __init mpc85xx_ds_setup_arch(void);
+
 #endif

arch/powerpc/platforms/85xx/mpc85xx_ds.c

@@ -101,7 +101,7 @@ void __init mpc85xx_ds_pic_init(void)
 /*
  * Setup the architecture
  */
-static void __init mpc85xx_ds_setup_arch(void)
+void __init mpc85xx_ds_setup_arch(void)
 {
 	if (ppc_md.progress)
 		ppc_md.progress("mpc85xx_ds_setup_arch()", 0);
@@ -116,7 +116,6 @@ static void __init mpc85xx_ds_setup_arch(void)
 
 machine_arch_initcall(mpc8544_ds, mpc85xx_common_publish_devices);
 machine_arch_initcall(mpc8572_ds, mpc85xx_common_publish_devices);
-machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices);
 
 define_machine(mpc8544_ds) {
 	.name			= "MPC8544 DS",
@@ -143,16 +142,3 @@ define_machine(mpc8572_ds) {
 	.get_irq		= mpic_get_irq,
 	.progress		= udbg_progress,
 };
-
-define_machine(p2020_ds) {
-	.name			= "P2020 DS",
-	.compatible		= "fsl,P2020DS",
-	.setup_arch		= mpc85xx_ds_setup_arch,
-	.init_IRQ		= mpc85xx_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
-#endif
-	.get_irq		= mpic_get_irq,
-	.progress		= udbg_progress,
-};

arch/powerpc/platforms/85xx/p2020.c

+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Freescale P2020 board Setup
+ *
+ * Copyright 2007,2009,2012-2013 Freescale Semiconductor Inc.
+ * Copyright 2022-2023 Pali Rohár <pali@kernel.org>
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+
+#include <asm/machdep.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+#include <asm/swiotlb.h>
+#include <asm/ppc-pci.h>
+
+#include <sysdev/fsl_pci.h>
+
+#include "smp.h"
+#include "mpc85xx.h"
+
+#ifdef CONFIG_MPC85xx_DS
+machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices);
+#endif /* CONFIG_MPC85xx_DS */
+
+#ifdef CONFIG_MPC85xx_DS
+define_machine(p2020_ds) {
+	.name			= "P2020 DS",
+	.compatible		= "fsl,P2020DS",
+	.setup_arch		= mpc85xx_ds_setup_arch,
+	.init_IRQ		= mpc85xx_ds_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+	.pcibios_fixup_phb	= fsl_pcibios_fixup_phb,
+#endif
+	.get_irq		= mpic_get_irq,
+	.progress		= udbg_progress,
+};
+#endif /* CONFIG_MPC85xx_DS */