ppc: Use the indirect_pci.c from arch/powerpc/sysdev

This defines a CONFIG_INDIRECT_PCI symbol to control whether it
gets used or not, and fixes the Kconfig to select that symbol for
platforms that need it.

Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/Kconfig

@@ -280,11 +280,13 @@ config PPC_PSERIES
 config PPC_CHRP
 	bool "  Common Hardware Reference Platform (CHRP) based machines"
 	depends on PPC_MULTIPLATFORM && PPC32
+	select PPC_INDIRECT_PCI
 	default y
 
 config PPC_PMAC
 	bool "  Apple PowerMac based machines"
 	depends on PPC_MULTIPLATFORM
+	select PPC_INDIRECT_PCI if PPC32
 	default y
 
 config PPC_PMAC64
@@ -296,6 +298,7 @@ config PPC_PMAC64
 config PPC_PREP
 	bool "  PowerPC Reference Platform (PReP) based machines"
 	depends on PPC_MULTIPLATFORM && PPC32
+	select PPC_INDIRECT_PCI
 	default y
 
 config PPC_MAPLE
@@ -637,6 +640,12 @@ config GENERIC_ISA_DMA
 	depends on PPC64 || POWER4 || 6xx && !CPM2
 	default y
 
+config PPC_INDIRECT_PCI
+	bool
+	depends on PCI
+	default y if 40x || 44x || 85xx || 83xx
+	default n
+
 config EISA
 	bool
 
@@ -677,6 +686,7 @@ config PCI_QSPAN
 config PCI_8260
 	bool
 	depends on PCI && 8260
+	select PPC_INDIRECT_PCI
 	default y
 
 config 8260_PCI9

arch/powerpc/platforms/embedded6xx/Kconfig

@@ -27,6 +27,7 @@ config CHESTNUT
 
 config SPRUCE
 	bool "IBM-Spruce"
+	select PPC_INDIRECT_PCI
 
 config HDPU
 	bool "Sky-HDPU"
@@ -50,15 +51,19 @@ config LOPEC
 
 config MVME5100
 	bool "Motorola-MVME5100"
+	select PPC_INDIRECT_PCI
 
 config PPLUS
 	bool "Motorola-PowerPlus"
+	select PPC_INDIRECT_PCI
 
 config PRPMC750
 	bool "Motorola-PrPMC750"
+	select PPC_INDIRECT_PCI
 
 config PRPMC800
 	bool "Motorola-PrPMC800"
+	select PPC_INDIRECT_PCI
 
 config SANDPOINT
 	bool "Motorola-Sandpoint"
@@ -74,6 +79,7 @@ config PAL4
 
 config GEMINI
 	bool "Synergy-Gemini"
+	select PPC_INDIRECT_PCI
 	depends on BROKEN
 	help
 	  Select Gemini if configuring for a Synergy Microsystems' Gemini
@@ -226,6 +232,7 @@ config MV64360		# Really MV64360 & MV64460
 config MV64X60
 	bool
 	depends on (GT64260 || MV64360)
+	select PPC_INDIRECT_PCI
 	default y
 
 menu "Set bridge options"
@@ -274,6 +281,7 @@ config EPIC_SERIAL_MODE
 config MPC10X_BRIDGE
 	bool
 	depends on POWERPMC250 || LOPEC || SANDPOINT
+	select PPC_INDIRECT_PCI
 	default y
 
 config MPC10X_OPENPIC

arch/powerpc/sysdev/Makefile

 obj-$(CONFIG_MPIC)		+= mpic.o
-indirectpci-$(CONFIG_PPC_PMAC)	= indirect_pci.o
-obj-$(CONFIG_PPC32)		+= $(indirectpci-y)
+obj-$(CONFIG_PPC_INDIRECT_PCI)	+= indirect_pci.o

arch/ppc/Kconfig

@@ -568,6 +568,7 @@ config CHESTNUT
 
 config SPRUCE
 	bool "IBM-Spruce"
+	select PPC_INDIRECT_PCI
 
 config HDPU
 	bool "Sky-HDPU"
@@ -591,15 +592,19 @@ config LOPEC
 
 config MVME5100
 	bool "Motorola-MVME5100"
+	select PPC_INDIRECT_PCI
 
 config PPLUS
 	bool "Motorola-PowerPlus"
+	select PPC_INDIRECT_PCI
 
 config PRPMC750
 	bool "Motorola-PrPMC750"
+	select PPC_INDIRECT_PCI
 
 config PRPMC800
 	bool "Motorola-PrPMC800"
+	select PPC_INDIRECT_PCI
 
 config SANDPOINT
 	bool "Motorola-Sandpoint"
@@ -616,6 +621,7 @@ config PAL4
 config GEMINI
 	bool "Synergy-Gemini"
 	depends on BROKEN
+	select PPC_INDIRECT_PCI
 	help
 	  Select Gemini if configuring for a Synergy Microsystems' Gemini
 	  series Single Board Computer.  More information is available at:
@@ -749,11 +755,13 @@ config CPM2
 config PPC_CHRP
 	bool "  Common Hardware Reference Platform (CHRP) based machines"
 	depends on PPC_MULTIPLATFORM
+	select PPC_INDIRECT_PCI
 	default y
 
 config PPC_PMAC
 	bool "  Apple PowerMac based machines"
 	depends on PPC_MULTIPLATFORM
+	select PPC_INDIRECT_PCI
 	default y
 
 config PPC_PMAC64
@@ -764,6 +772,7 @@ config PPC_PMAC64
 config PPC_PREP
 	bool "  PowerPC Reference Platform (PReP) based machines"
 	depends on PPC_MULTIPLATFORM
+	select PPC_INDIRECT_PCI
 	default y
 
 config PPC_OF
@@ -797,6 +806,7 @@ config MV64360		# Really MV64360 & MV64460
 config MV64X60
 	bool
 	depends on (GT64260 || MV64360)
+	select PPC_INDIRECT_PCI
 	default y
 
 menu "Set bridge options"
@@ -845,6 +855,7 @@ config EPIC_SERIAL_MODE
 config MPC10X_BRIDGE
 	bool
 	depends on POWERPMC250 || LOPEC || SANDPOINT
+	select PPC_INDIRECT_PCI
 	default y
 
 config MPC10X_OPENPIC
@@ -1139,6 +1150,12 @@ config GENERIC_ISA_DMA
 	depends on POWER3 || POWER4 || 6xx && !CPM2
 	default y
 
+config PPC_INDIRECT_PCI
+	bool
+	depends on PCI
+	default y if 40x || 44x || 85xx || 83xx
+	default n
+
 config EISA
 	bool
 	help
@@ -1182,6 +1199,7 @@ config PCI_QSPAN
 config PCI_8260
 	bool
 	depends on PCI && 8260
+	select PPC_INDIRECT_PCI
 	default y
 
 config 8260_PCI9

arch/ppc/Makefile

@@ -61,7 +61,8 @@ head-$(CONFIG_PPC_FPU)		+= arch/powerpc/kernel/fpu.o
 
 core-y				+= arch/ppc/kernel/ arch/powerpc/kernel/ \
 				   arch/ppc/platforms/ \
-				   arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
+				   arch/ppc/mm/ arch/ppc/lib/ \
+				   arch/ppc/syslib/ arch/powerpc/sysdev/
 core-$(CONFIG_4xx)		+= arch/ppc/platforms/4xx/
 core-$(CONFIG_83xx)		+= arch/ppc/platforms/83xx/
 core-$(CONFIG_85xx)		+= arch/ppc/platforms/85xx/

arch/ppc/syslib/Makefile

@@ -31,7 +31,7 @@ obj-$(CONFIG_GEN_RTC)		+= todc_time.o
 obj-$(CONFIG_PPC4xx_DMA)	+= ppc4xx_dma.o
 obj-$(CONFIG_PPC4xx_EDMA)	+= ppc4xx_sgdma.o
 ifeq ($(CONFIG_40x),y)
-obj-$(CONFIG_PCI)		+= indirect_pci.o pci_auto.o ppc405_pci.o
+obj-$(CONFIG_PCI)		+= pci_auto.o ppc405_pci.o
 endif
 endif
 obj-$(CONFIG_8xx)		+= m8xx_setup.o ppc8xx_pic.o $(wdt-mpc8xx-y) \
@@ -40,43 +40,43 @@ ifeq ($(CONFIG_8xx),y)
 obj-$(CONFIG_PCI)		+= qspan_pci.o i8259.o
 endif
 obj-$(CONFIG_PPC_OF)		+= prom_init.o prom.o
-obj-$(CONFIG_PPC_PMAC)		+= open_pic.o indirect_pci.o
+obj-$(CONFIG_PPC_PMAC)		+= open_pic.o
 obj-$(CONFIG_POWER4)		+= open_pic2.o
-obj-$(CONFIG_PPC_CHRP)		+= open_pic.o indirect_pci.o i8259.o
-obj-$(CONFIG_PPC_PREP)		+= open_pic.o indirect_pci.o i8259.o todc_time.o
-obj-$(CONFIG_BAMBOO)		+= indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_PPC_CHRP)		+= open_pic.o i8259.o
+obj-$(CONFIG_PPC_PREP)		+= open_pic.o i8259.o todc_time.o
+obj-$(CONFIG_BAMBOO)		+= pci_auto.o todc_time.o
 obj-$(CONFIG_CPCI690)		+= todc_time.o pci_auto.o
-obj-$(CONFIG_EBONY)		+= indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_EBONY)		+= pci_auto.o todc_time.o
 obj-$(CONFIG_EV64260)		+= todc_time.o pci_auto.o
 obj-$(CONFIG_CHESTNUT)		+= mv64360_pic.o pci_auto.o
-obj-$(CONFIG_GEMINI)		+= open_pic.o indirect_pci.o
+obj-$(CONFIG_GEMINI)		+= open_pic.o
 obj-$(CONFIG_GT64260)		+= gt64260_pic.o
 obj-$(CONFIG_LOPEC)		+= i8259.o pci_auto.o todc_time.o
 obj-$(CONFIG_HDPU)		+= pci_auto.o
-obj-$(CONFIG_LUAN)		+= indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_LUAN)		+= pci_auto.o todc_time.o
 obj-$(CONFIG_KATANA)		+= pci_auto.o
 obj-$(CONFIG_MV64360)		+= mv64360_pic.o
-obj-$(CONFIG_MV64X60)		+= mv64x60.o mv64x60_win.o indirect_pci.o
-obj-$(CONFIG_MVME5100)		+= open_pic.o todc_time.o indirect_pci.o \
+obj-$(CONFIG_MV64X60)		+= mv64x60.o mv64x60_win.o
+obj-$(CONFIG_MVME5100)		+= open_pic.o todc_time.o \
 					pci_auto.o hawk_common.o
 obj-$(CONFIG_MVME5100_IPMC761_PRESENT)	+= i8259.o
-obj-$(CONFIG_OCOTEA)		+= indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_OCOTEA)		+= pci_auto.o todc_time.o
 obj-$(CONFIG_PAL4)		+= cpc700_pic.o
 obj-$(CONFIG_POWERPMC250)	+= pci_auto.o
 obj-$(CONFIG_PPLUS)		+= hawk_common.o open_pic.o i8259.o \
-				   indirect_pci.o todc_time.o pci_auto.o
-obj-$(CONFIG_PRPMC750)		+= open_pic.o indirect_pci.o pci_auto.o \
+				   todc_time.o pci_auto.o
+obj-$(CONFIG_PRPMC750)		+= open_pic.o pci_auto.o \
 					hawk_common.o
 obj-$(CONFIG_HARRIER)		+= harrier.o
-obj-$(CONFIG_PRPMC800)		+= open_pic.o indirect_pci.o pci_auto.o
+obj-$(CONFIG_PRPMC800)		+= open_pic.o pci_auto.o
 obj-$(CONFIG_RADSTONE_PPC7D)	+= i8259.o pci_auto.o
 obj-$(CONFIG_SANDPOINT)		+= i8259.o pci_auto.o todc_time.o
 obj-$(CONFIG_SBC82xx)		+= todc_time.o
-obj-$(CONFIG_SPRUCE)		+= cpc700_pic.o indirect_pci.o pci_auto.o \
+obj-$(CONFIG_SPRUCE)		+= cpc700_pic.o pci_auto.o \
 				   todc_time.o
 obj-$(CONFIG_8260)		+= m8260_setup.o pq2_devices.o pq2_sys.o \
 				   ppc_sys.o
-obj-$(CONFIG_PCI_8260)		+= m82xx_pci.o indirect_pci.o pci_auto.o
+obj-$(CONFIG_PCI_8260)		+= m82xx_pci.o pci_auto.o
 obj-$(CONFIG_8260_PCI9)		+= m8260_pci_erratum9.o
 obj-$(CONFIG_CPM2)		+= cpm2_common.o cpm2_pic.o
 ifeq ($(CONFIG_PPC_GEN550),y)
@@ -87,7 +87,7 @@ ifeq ($(CONFIG_SERIAL_MPSC_CONSOLE),y)
 obj-$(CONFIG_SERIAL_TEXT_DEBUG)	+= mv64x60_dbg.o
 endif
 obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
-obj-$(CONFIG_MPC10X_BRIDGE)	+= mpc10x_common.o indirect_pci.o ppc_sys.o
+obj-$(CONFIG_MPC10X_BRIDGE)	+= mpc10x_common.o ppc_sys.o
 obj-$(CONFIG_MPC10X_OPENPIC)	+= open_pic.o
 obj-$(CONFIG_40x)		+= dcr.o
 obj-$(CONFIG_BOOKE)		+= dcr.o
@@ -95,12 +95,12 @@ obj-$(CONFIG_85xx)		+= open_pic.o ppc85xx_common.o ppc85xx_setup.o \
 					ppc_sys.o i8259.o mpc85xx_sys.o \
 					mpc85xx_devices.o
 ifeq ($(CONFIG_85xx),y)
-obj-$(CONFIG_PCI)		+= indirect_pci.o pci_auto.o
+obj-$(CONFIG_PCI)		+= pci_auto.o
 endif
 obj-$(CONFIG_83xx)		+= ipic.o ppc83xx_setup.o ppc_sys.o \
 					mpc83xx_sys.o mpc83xx_devices.o
 ifeq ($(CONFIG_83xx),y)
-obj-$(CONFIG_PCI)		+= indirect_pci.o pci_auto.o
+obj-$(CONFIG_PCI)		+= pci_auto.o
 endif
 obj-$(CONFIG_MPC8548_CDS)	+= todc_time.o
 obj-$(CONFIG_MPC8555_CDS)	+= todc_time.o

arch/ppc/syslib/indirect_pci.c

-/*
- * Support for indirect PCI bridges.
- *
- * Copyright (C) 1998 Gabriel Paubert.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-
-#ifdef CONFIG_PPC_INDIRECT_PCI_BE
-#define PCI_CFG_OUT out_be32
-#else
-#define PCI_CFG_OUT out_le32
-#endif
-
-static int
-indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
-		     int len, u32 *val)
-{
-	struct pci_controller *hose = bus->sysdata;
-	volatile void __iomem *cfg_data;
-	u8 cfg_type = 0;
-
-	if (ppc_md.pci_exclude_device)
-		if (ppc_md.pci_exclude_device(bus->number, devfn))
-			return PCIBIOS_DEVICE_NOT_FOUND;
-	
-	if (hose->set_cfg_type)
-		if (bus->number != hose->first_busno)
-			cfg_type = 1;
-
-	PCI_CFG_OUT(hose->cfg_addr, 					 
-		 (0x80000000 | ((bus->number - hose->bus_offset) << 16)
-		  | (devfn << 8) | ((offset & 0xfc) | cfg_type)));
-
-	/*
-	 * Note: the caller has already checked that offset is
-	 * suitably aligned and that len is 1, 2 or 4.
-	 */
-	cfg_data = hose->cfg_data + (offset & 3);
-	switch (len) {
-	case 1:
-		*val = in_8(cfg_data);
-		break;
-	case 2:
-		*val = in_le16(cfg_data);
-		break;
-	default:
-		*val = in_le32(cfg_data);
-		break;
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
-		      int len, u32 val)
-{
-	struct pci_controller *hose = bus->sysdata;
-	volatile void __iomem *cfg_data;
-	u8 cfg_type = 0;
-
-	if (ppc_md.pci_exclude_device)
-		if (ppc_md.pci_exclude_device(bus->number, devfn))
-			return PCIBIOS_DEVICE_NOT_FOUND;
-
-	if (hose->set_cfg_type)
-		if (bus->number != hose->first_busno)
-			cfg_type = 1;
-
-	PCI_CFG_OUT(hose->cfg_addr, 					 
-		 (0x80000000 | ((bus->number - hose->bus_offset) << 16)
-		  | (devfn << 8) | ((offset & 0xfc) | cfg_type)));
-
-	/*
-	 * Note: the caller has already checked that offset is
-	 * suitably aligned and that len is 1, 2 or 4.
-	 */
-	cfg_data = hose->cfg_data + (offset & 3);
-	switch (len) {
-	case 1:
-		out_8(cfg_data, val);
-		break;
-	case 2:
-		out_le16(cfg_data, val);
-		break;
-	default:
-		out_le32(cfg_data, val);
-		break;
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops indirect_pci_ops =
-{
-	indirect_read_config,
-	indirect_write_config
-};
-
-void __init
-setup_indirect_pci_nomap(struct pci_controller* hose, void __iomem * cfg_addr,
-	void __iomem * cfg_data)
-{
-	hose->cfg_addr = cfg_addr;
-	hose->cfg_data = cfg_data;
-	hose->ops = &indirect_pci_ops;
-}
-
-void __init
-setup_indirect_pci(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
-{
-	unsigned long base = cfg_addr & PAGE_MASK;
-	void __iomem *mbase, *addr, *data;
-
-	mbase = ioremap(base, PAGE_SIZE);
-	addr = mbase + (cfg_addr & ~PAGE_MASK);
-	if ((cfg_data & PAGE_MASK) != base)
-		mbase = ioremap(cfg_data & PAGE_MASK, PAGE_SIZE);
-	data = mbase + (cfg_data & ~PAGE_MASK);
-	setup_indirect_pci_nomap(hose, addr, data);
-}