[POWERPC] Create common fsl pci/e files based on 86xx platforms

Move
arch/powerpc/platforms/86xx/pci.c -> arch/powerpc/sysdev/fsl_pci.c
arch/powerpc/sysdev/fsl_pcie.h -> arch/powerpc/sysdev/fsl_pci.h
as the base to unify 83xx/85xx/86xx pci and pcie.

Add CONFIG_FSL_PCI to build fsl_pci.c for Freescale pci and pcie option.
The code still works for 86xx platforms.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 2 insertions, 241 deletions

diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 0faebfdc159..d1c8115200b 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -14,8 +14,8 @@ endchoice
 
 config MPC8641
 	bool
-	select PPC_INDIRECT_PCI
-	select PPC_INDIRECT_PCI_BE
+	select PPC_INDIRECT_PCI_BE if PCI
+	select FSL_PCI if PCI
 	select PPC_UDBG_16550
 	select MPIC
 	default y if MPC8641_HPCN
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index 418fd8f4d26..3376c7767f2 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -4,4 +4,3 @@
 
 obj-$(CONFIG_SMP)		+= mpc86xx_smp.o
 obj-$(CONFIG_MPC8641_HPCN)	+= mpc86xx_hpcn.o
-obj-$(CONFIG_PCI)		+= pci.o
diff --git a/arch/powerpc/platforms/86xx/pci.c b/arch/powerpc/platforms/86xx/pci.c
deleted file mode 100644
index 73cd5b05a84..00000000000
--- a/arch/powerpc/platforms/86xx/pci.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- * MPC86XX pci setup code
- *
- * Recode: ZHANG WEI <wei.zhang@freescale.com>
- * Initial author: Xianghua Xiao <x.xiao@freescale.com>
- *
- * Copyright 2006 Freescale Semiconductor Inc.
- *
- * 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/types.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/serial.h>
-
-#include <asm/system.h>
-#include <asm/atomic.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/pci-bridge.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pcie.h>
-
-#include "mpc86xx.h"
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
-#else
-#define DBG(fmt, args...)
-#endif
-
-struct pcie_outbound_window_regs {
-	uint    pexotar;               /* 0x.0 - PCI Express outbound translation address register */
-	uint    pexotear;              /* 0x.4 - PCI Express outbound translation extended address register */
-	uint    pexowbar;              /* 0x.8 - PCI Express outbound window base address register */
-	char    res1[4];
-	uint    pexowar;               /* 0x.10 - PCI Express outbound window attributes register */
-	char    res2[12];
-};
-
-struct pcie_inbound_window_regs {
-	uint    pexitar;               /* 0x.0 - PCI Express inbound translation address register */
-	char    res1[4];
-	uint    pexiwbar;              /* 0x.8 - PCI Express inbound window base address register */
-	uint    pexiwbear;             /* 0x.c - PCI Express inbound window base extended address register */
-	uint    pexiwar;               /* 0x.10 - PCI Express inbound window attributes register */
-	char    res2[12];
-};
-
-static void __init setup_pcie_atmu(struct pci_controller *hose, struct resource *rsrc)
-{
-	volatile struct ccsr_pex *pcie;
-	volatile struct pcie_outbound_window_regs *pcieow;
-	volatile struct pcie_inbound_window_regs *pcieiw;
-	int i = 0;
-
-	DBG("PCIE memory map start 0x%x, size 0x%x\n", rsrc->start,
-			rsrc->end - rsrc->start + 1);
-	pcie = ioremap(rsrc->start, rsrc->end - rsrc->start + 1);
-
-	/* Disable all windows (except pexowar0 since its ignored) */
-	pcie->pexowar1 = 0;
-	pcie->pexowar2 = 0;
- 	pcie->pexowar3 = 0;
- 	pcie->pexowar4 = 0;
- 	pcie->pexiwar1 = 0;
- 	pcie->pexiwar2 = 0;
- 	pcie->pexiwar3 = 0;
-
- 	pcieow = (struct pcie_outbound_window_regs *)&pcie->pexotar1;
- 	pcieiw = (struct pcie_inbound_window_regs *)&pcie->pexitar1;
-
- 	/* Setup outbound MEM window */
- 	for(i = 0; i < 3; i++)
- 		if (hose->mem_resources[i].flags & IORESOURCE_MEM){
- 			DBG("PCIE MEM resource start 0x%08x, size 0x%08x.\n",
- 				hose->mem_resources[i].start,
- 				hose->mem_resources[i].end
- 				  - hose->mem_resources[i].start + 1);
- 			pcieow->pexotar = (hose->mem_resources[i].start) >> 12
- 				& 0x000fffff;
- 			pcieow->pexotear = 0;
- 			pcieow->pexowbar = (hose->mem_resources[i].start) >> 12
- 				& 0x000fffff;
- 			/* Enable, Mem R/W */
- 			pcieow->pexowar = 0x80044000 |
- 				(__ilog2(hose->mem_resources[i].end
- 					 - hose->mem_resources[i].start + 1)
- 				 - 1);
- 			pcieow++;
- 		}
-
- 	/* Setup outbound IO window */
- 	if (hose->io_resource.flags & IORESOURCE_IO){
- 		DBG("PCIE IO resource start 0x%08x, size 0x%08x, phy base 0x%08x.\n",
- 			hose->io_resource.start,
- 			hose->io_resource.end - hose->io_resource.start + 1,
- 			hose->io_base_phys);
- 		pcieow->pexotar = (hose->io_resource.start) >> 12 & 0x000fffff;
- 		pcieow->pexotear = 0;
- 		pcieow->pexowbar = (hose->io_base_phys) >> 12 & 0x000fffff;
- 		/* Enable, IO R/W */
- 		pcieow->pexowar = 0x80088000 | (__ilog2(hose->io_resource.end
- 					- hose->io_resource.start + 1) - 1);
- 	}
-
- 	/* Setup 2G inbound Memory Window @ 0 */
- 	pcieiw->pexitar = 0x00000000;
- 	pcieiw->pexiwbar = 0x00000000;
- 	/* Enable, Prefetch, Local Mem, Snoop R/W, 2G */
- 	pcieiw->pexiwar = 0xa0f5501e;
-}
-
-static void __init
-mpc86xx_setup_pcie(struct pci_controller *hose, u32 pcie_offset, u32 pcie_size)
-{
-	u16 cmd;
-
-	DBG("PCIE host controller register offset 0x%08x, size 0x%08x.\n",
-			pcie_offset, pcie_size);
-
-	early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd);
-	cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY
-	    | PCI_COMMAND_IO;
-	early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd);
-
-	early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80);
-}
-
-static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev)
-{
-	struct resource *res;
-	int i, res_idx = PCI_BRIDGE_RESOURCES;
-	struct pci_controller *hose;
-
-	/*
-	 * Make the bridge be transparent.
-	 */
-	dev->transparent = 1;
-
-	hose = pci_bus_to_host(dev->bus);
-	if (!hose) {
-		printk(KERN_ERR "Can't find hose for bus %d\n",
-		       dev->bus->number);
-		return;
-	}
-
-	if (hose->io_resource.flags) {
-		res = &dev->resource[res_idx++];
-		res->start = hose->io_resource.start;
-		res->end = hose->io_resource.end;
-		res->flags = hose->io_resource.flags;
-	}
-
-	for (i = 0; i < 3; i++) {
-		res = &dev->resource[res_idx + i];
-		res->start = hose->mem_resources[i].start;
-		res->end = hose->mem_resources[i].end;
-		res->flags = hose->mem_resources[i].flags;
-	}
-}
-
-
-DECLARE_PCI_FIXUP_EARLY(0x1957, 0x7010, quirk_fsl_pcie_transparent);
-DECLARE_PCI_FIXUP_EARLY(0x1957, 0x7011, quirk_fsl_pcie_transparent);
-
-#define PCIE_LTSSM	0x404	/* PCIe Link Training and Status */
-#define PCIE_LTSSM_L0	0x16	/* L0 state */
-
-int __init mpc86xx_add_bridge(struct device_node *dev)
-{
-	int len;
-	struct pci_controller *hose;
-	struct resource rsrc;
-	const int *bus_range;
-	int has_address = 0;
-	int primary = 0;
-	u16 val;
-
-	DBG("Adding PCIE host bridge %s\n", dev->full_name);
-
-	/* Fetch host bridge registers address */
-	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
-
-	/* Get bus range if any */
-	bus_range = of_get_property(dev, "bus-range", &len);
-	if (bus_range == NULL || len < 2 * sizeof(int))
-		printk(KERN_WARNING "Can't get bus-range for %s, assume"
-		       " bus 0\n", dev->full_name);
-
-	pci_assign_all_buses = 1;
-	hose = pcibios_alloc_controller(dev);
-	if (!hose)
-		return -ENOMEM;
-
-	hose->indirect_type = PPC_INDIRECT_TYPE_EXT_REG |
-				PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS;
-
-	hose->first_busno = bus_range ? bus_range[0] : 0x0;
-	hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
-	setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4);
-
-	/* Probe the hose link training status */
-	early_read_config_word(hose, 0, 0, PCIE_LTSSM, &val);
-	if (val < PCIE_LTSSM_L0)
-		return -ENXIO;
-
-	/* Setup the PCIE host controller. */
-	mpc86xx_setup_pcie(hose, rsrc.start, rsrc.end - rsrc.start + 1);
-
-	if ((rsrc.start & 0xfffff) == 0x8000)
-		primary = 1;
-
-	printk(KERN_INFO "Found MPC86xx PCIE host bridge at 0x%08lx. "
-	       "Firmware bus number: %d->%d\n",
-	       (unsigned long) rsrc.start,
-	       hose->first_busno, hose->last_busno);
-
-	DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
-		hose, hose->cfg_addr, hose->cfg_data);
-
-	/* Interpret the "ranges" property */
-	/* This also maps the I/O region and sets isa_io/mem_base */
-	pci_process_bridge_OF_ranges(hose, dev, primary);
-
-	/* Setup PEX window registers */
-	setup_pcie_atmu(hose, &rsrc);
-
-	return 0;
-}