From:   Christophe Leroy <christophe.leroy@csgroup.eu>
To:     =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Nicholas Piggin <npiggin@gmail.com>
Cc:     Christophe Leroy <christophe.leroy@csgroup.eu>,
        linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v4 13/17] powerpc/85xx: mpc85xx_ds: Move PCI code into own file
Date:   Wed, 22 Feb 2023 15:43:00 +0100
Message-Id: <f5007117d2059ee30464c8cf031c8294c99569d8.1677076552.git.christophe.leroy@csgroup.eu>
In-Reply-To: <cover.1677076552.git.christophe.leroy@csgroup.eu>
References: <cover.1677076552.git.christophe.leroy@csgroup.eu>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Pali Rohár <pali@kernel.org>

In order to share between DS and P2020.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 arch/powerpc/platforms/85xx/Makefile      |  3 +-
 arch/powerpc/platforms/85xx/mpc85xx.h     |  6 +++
 arch/powerpc/platforms/85xx/mpc85xx_ds.c  | 32 ------------
 arch/powerpc/platforms/85xx/mpc85xx_uli.c | 64 +++++++++++++++++++++++
 4 files changed, 72 insertions(+), 33 deletions(-)
 create mode 100644 arch/powerpc/platforms/85xx/mpc85xx_uli.c

diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 0a0011e8c63c..65abd5a161c0 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -17,7 +17,8 @@ obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
 obj-$(CONFIG_MPC8536_DS)  += mpc8536_ds.o
 obj8259-$(CONFIG_PPC_I8259)   += mpc85xx_8259.o
-obj-$(CONFIG_MPC85xx_DS)  += mpc85xx_ds.o p2020.o $(obj8259-y)
+objpci-$(CONFIG_PCI)   += mpc85xx_uli.o
+obj-$(CONFIG_MPC85xx_DS)  += mpc85xx_ds.o p2020.o $(obj8259-y) $(objpci-y)
 obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
 obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o p2020.o
 obj-$(CONFIG_P1010_RDB)   += p1010rdb.o
diff --git a/arch/powerpc/platforms/85xx/mpc85xx.h b/arch/powerpc/platforms/85xx/mpc85xx.h
index e792907ee3d5..b77bb9e7e79c 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx.h
+++ b/arch/powerpc/platforms/85xx/mpc85xx.h
@@ -21,6 +21,12 @@ void __init mpc85xx_8259_init(void);
 static inline void __init mpc85xx_8259_init(void) {}
 #endif
 
+#ifdef CONFIG_PCI
+void __init mpc85xx_ds_uli_init(void);
+#else
+static inline void __init mpc85xx_ds_uli_init(void) {}
+#endif
+
 void __init mpc85xx_ds_pic_init(void);
 void __init mpc85xx_ds_setup_arch(void);
 void __init mpc85xx_rdb_setup_arch(void);
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 011ae86d72f4..f9ac0b6022b1 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -52,38 +52,6 @@ void __init mpc85xx_ds_pic_init(void)
 	mpc85xx_8259_init();
 }
 
-static struct device_node *pci_with_uli;
-
-static int mpc85xx_exclude_device(struct pci_controller *hose,
-				   u_char bus, u_char devfn)
-{
-	if (hose->dn == pci_with_uli)
-		return uli_exclude_device(hose, bus, devfn);
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static void __init mpc85xx_ds_uli_init(void)
-{
-	struct device_node *node;
-
-	if (!IS_ENABLED(CONFIG_PCI))
-		return;
-
-	/* See if we have a ULI under the primary */
-
-	node = of_find_node_by_name(NULL, "uli1575");
-	while ((pci_with_uli = of_get_parent(node))) {
-		of_node_put(node);
-		node = pci_with_uli;
-
-		if (pci_with_uli == fsl_pci_primary) {
-			ppc_md.pci_exclude_device = mpc85xx_exclude_device;
-			break;
-		}
-	}
-}
-
 /*
  * Setup the architecture
  */
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_uli.c b/arch/powerpc/platforms/85xx/mpc85xx_uli.c
new file mode 100644
index 000000000000..f91fe860985b
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/mpc85xx_uli.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * MPC85xx PCI functions for DS Board Setup
+ *
+ * Author Xianghua Xiao (x.xiao@freescale.com)
+ * Roy Zang <tie-fei.zang@freescale.com>
+ * 	- Add PCI/PCI Exprees support
+ * Copyright 2007 Freescale Semiconductor Inc.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/interrupt.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+#include <asm/i8259.h>
+#include <asm/swiotlb.h>
+#include <asm/ppc-pci.h>
+
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include "smp.h"
+
+#include "mpc85xx.h"
+
+static struct device_node *pci_with_uli;
+
+static int mpc85xx_exclude_device(struct pci_controller *hose,
+				   u_char bus, u_char devfn)
+{
+	if (hose->dn == pci_with_uli)
+		return uli_exclude_device(hose, bus, devfn);
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+void __init mpc85xx_ds_uli_init(void)
+{
+	struct device_node *node;
+
+	/* See if we have a ULI under the primary */
+
+	node = of_find_node_by_name(NULL, "uli1575");
+	while ((pci_with_uli = of_get_parent(node))) {
+		of_node_put(node);
+		node = pci_with_uli;
+
+		if (pci_with_uli == fsl_pci_primary) {
+			ppc_md.pci_exclude_device = mpc85xx_exclude_device;
+			break;
+		}
+	}
+}
-- 
2.39.1