Subject: [PATCH v5 10/13] powerpc/85xx: p2020: Unify .setup_arch and .init_IRQ callbacks

From: Pali Rohár <[email-masked]>
Date: Sat, 8 Apr 2023 16:01:19 +0200

Make just one .setup_arch and one .init_IRQ callback implementation for all
P2020 board code. This deduplicate repeated and same code.

Signed-off-by: Pali Rohár <[email-masked]>
Signed-off-by: Christophe Leroy <[email-masked]>

---
Changes in v5:
* Make mpc85xx_ds_pic_init() and mpc85xx_ds_setup_arch() static too.
---
 arch/powerpc/platforms/85xx/mpc85xx.h     |  5 ---
 arch/powerpc/platforms/85xx/mpc85xx_ds.c  |  4 +--
 arch/powerpc/platforms/85xx/mpc85xx_rdb.c |  4 +--
 arch/powerpc/platforms/85xx/p2020.c       | 38 +++++++++++++++++++----
 4 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/mpc85xx.h b/arch/powerpc/platforms/85xx/mpc85xx.h
index e792907ee3d5..c764d7551ef1 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx.h
+++ b/arch/powerpc/platforms/85xx/mpc85xx.h
@@ -21,9 +21,4 @@ void __init mpc85xx_8259_init(void);
 static inline void __init mpc85xx_8259_init(void) {}
 #endif
 
-void __init mpc85xx_ds_pic_init(void);
-void __init mpc85xx_ds_setup_arch(void);
-void __init mpc85xx_rdb_setup_arch(void);
-void __init mpc85xx_rdb_pic_init(void);
-
 #endif
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index db4cf76c0fd1..4347d629b567 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -34,7 +34,7 @@
 
 #include "mpc85xx.h"
 
-void __init mpc85xx_ds_pic_init(void)
+static void __init mpc85xx_ds_pic_init(void)
 {
 	struct mpic *mpic;
 	int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU;
@@ -55,7 +55,7 @@ void __init mpc85xx_ds_pic_init(void)
 /*
  * Setup the architecture
  */
-void __init mpc85xx_ds_setup_arch(void)
+static void __init mpc85xx_ds_setup_arch(void)
 {
 	if (ppc_md.progress)
 		ppc_md.progress("mpc85xx_ds_setup_arch()", 0);
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index dbedffc57ce8..c42a68da6dfd 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -29,7 +29,7 @@
 
 #include "mpc85xx.h"
 
-void __init mpc85xx_rdb_pic_init(void)
+static void __init mpc85xx_rdb_pic_init(void)
 {
 	struct mpic *mpic;
 	int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU;
@@ -48,7 +48,7 @@ void __init mpc85xx_rdb_pic_init(void)
 /*
  * Setup the architecture
  */
-void __init mpc85xx_rdb_setup_arch(void)
+static void __init mpc85xx_rdb_setup_arch(void)
 {
 	if (ppc_md.progress)
 		ppc_md.progress("mpc85xx_rdb_setup_arch()", 0);
diff --git a/arch/powerpc/platforms/85xx/p2020.c b/arch/powerpc/platforms/85xx/p2020.c
index 41bba8c0e335..0e7be454b2de 100644
--- a/arch/powerpc/platforms/85xx/p2020.c
+++ b/arch/powerpc/platforms/85xx/p2020.c
@@ -21,6 +21,32 @@
 #include "smp.h"
 #include "mpc85xx.h"
 
+static void __init p2020_pic_init(void)
+{
+	struct mpic *mpic;
+	int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU;
+
+	mpic = mpic_alloc(NULL, 0, flags, 0, 256, " OpenPIC  ");
+
+	if (WARN_ON(!mpic))
+		return;
+
+	mpic_init(mpic);
+	mpc85xx_8259_init();
+}
+
+/*
+ * Setup the architecture
+ */
+static void __init p2020_setup_arch(void)
+{
+	swiotlb_detect_4g();
+	fsl_pci_assign_primary();
+	uli_init();
+	mpc85xx_smp_init();
+	mpc85xx_qe_par_io_init();
+}
+
 #ifdef CONFIG_MPC85xx_DS
 machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices);
 #endif /* CONFIG_MPC85xx_DS */
@@ -34,8 +60,8 @@ machine_arch_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices);
 define_machine(p2020_ds) {
 	.name			= "P2020 DS",
 	.compatible		= "fsl,P2020DS",
-	.setup_arch		= mpc85xx_ds_setup_arch,
-	.init_IRQ		= mpc85xx_ds_pic_init,
+	.setup_arch		= p2020_setup_arch,
+	.init_IRQ		= p2020_pic_init,
 #ifdef CONFIG_PCI
 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
 	.pcibios_fixup_phb	= fsl_pcibios_fixup_phb,
@@ -49,8 +75,8 @@ define_machine(p2020_ds) {
 define_machine(p2020_rdb) {
 	.name			= "P2020 RDB",
 	.compatible		= "fsl,P2020RDB",
-	.setup_arch		= mpc85xx_rdb_setup_arch,
-	.init_IRQ		= mpc85xx_rdb_pic_init,
+	.setup_arch		= p2020_setup_arch,
+	.init_IRQ		= p2020_pic_init,
 #ifdef CONFIG_PCI
 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
 	.pcibios_fixup_phb	= fsl_pcibios_fixup_phb,
@@ -62,8 +88,8 @@ define_machine(p2020_rdb) {
 define_machine(p2020_rdb_pc) {
 	.name			= "P2020RDB-PC",
 	.compatible		= "fsl,P2020RDB-PC",
-	.setup_arch		= mpc85xx_rdb_setup_arch,
-	.init_IRQ		= mpc85xx_rdb_pic_init,
+	.setup_arch		= p2020_setup_arch,
+	.init_IRQ		= p2020_pic_init,
 #ifdef CONFIG_PCI
 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
 	.pcibios_fixup_phb	= fsl_pcibios_fixup_phb,
-- 
2.20.1