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authorMichael Ellerman <michael@ozlabs.org>2011-04-11 21:25:01 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-04-27 14:18:29 +1000
commit3cc30d0726d258ac336283bcde66a8ab58283b61 (patch)
treed0b6664707f2d6ee5b5a008af1c2810d5ba1390c /arch/powerpc/platforms/cell
parent21176fed25c3b0cb17c6c42d71b4e3d68b8f9dd4 (diff)
downloadlinux-3cc30d0726d258ac336283bcde66a8ab58283b61.tar.bz2
powerpc/pci: Move IO workarounds to the common kernel dir
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/cell')
-rw-r--r--arch/powerpc/platforms/cell/Kconfig1
-rw-r--r--arch/powerpc/platforms/cell/Makefile8
-rw-r--r--arch/powerpc/platforms/cell/celleb_pci.c1
-rw-r--r--arch/powerpc/platforms/cell/celleb_pci.h3
-rw-r--r--arch/powerpc/platforms/cell/io-workarounds.c185
-rw-r--r--arch/powerpc/platforms/cell/io-workarounds.h49
-rw-r--r--arch/powerpc/platforms/cell/qpace_setup.c1
-rw-r--r--arch/powerpc/platforms/cell/setup.c2
-rw-r--r--arch/powerpc/platforms/cell/spider-pci.c3
9 files changed, 9 insertions, 244 deletions
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 3c7f1de06cdf..67d5009b4e86 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -16,6 +16,7 @@ config PPC_CELL_NATIVE
bool
select PPC_CELL_COMMON
select MPIC
+ select PPC_IO_WORKAROUNDS
select IBM_NEW_EMAC_EMAC4
select IBM_NEW_EMAC_RGMII
select IBM_NEW_EMAC_ZMII #test only
diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile
index 83fafe922641..8839ef6c7188 100644
--- a/arch/powerpc/platforms/cell/Makefile
+++ b/arch/powerpc/platforms/cell/Makefile
@@ -1,7 +1,7 @@
obj-$(CONFIG_PPC_CELL_COMMON) += cbe_regs.o interrupt.o pervasive.o
obj-$(CONFIG_PPC_CELL_NATIVE) += iommu.o setup.o spider-pic.o \
- pmu.o io-workarounds.o spider-pci.o
+ pmu.o spider-pci.o
obj-$(CONFIG_CBE_RAS) += ras.o
obj-$(CONFIG_CBE_THERM) += cbe_thermal.o
@@ -39,9 +39,9 @@ obj-y += celleb_setup.o \
celleb_pci.o celleb_scc_epci.o \
celleb_scc_pciex.o \
celleb_scc_uhc.o \
- io-workarounds.o spider-pci.o \
- beat.o beat_htab.o beat_hvCall.o \
- beat_interrupt.o beat_iommu.o
+ spider-pci.o beat.o beat_htab.o \
+ beat_hvCall.o beat_interrupt.o \
+ beat_iommu.o
obj-$(CONFIG_SMP) += beat_smp.o
obj-$(CONFIG_PPC_UDBG_BEAT) += beat_udbg.o
diff --git a/arch/powerpc/platforms/cell/celleb_pci.c b/arch/powerpc/platforms/cell/celleb_pci.c
index 404d1fc04d59..c19b783a7c99 100644
--- a/arch/powerpc/platforms/cell/celleb_pci.c
+++ b/arch/powerpc/platforms/cell/celleb_pci.c
@@ -41,7 +41,6 @@
#include <asm/pci-bridge.h>
#include <asm/ppc-pci.h>
-#include "io-workarounds.h"
#include "celleb_pci.h"
#define MAX_PCI_DEVICES 32
diff --git a/arch/powerpc/platforms/cell/celleb_pci.h b/arch/powerpc/platforms/cell/celleb_pci.h
index 4cba1523ec50..a801fcc5f389 100644
--- a/arch/powerpc/platforms/cell/celleb_pci.h
+++ b/arch/powerpc/platforms/cell/celleb_pci.h
@@ -26,8 +26,9 @@
#include <asm/pci-bridge.h>
#include <asm/prom.h>
#include <asm/ppc-pci.h>
+#include <asm/io-workarounds.h>
-#include "io-workarounds.h"
+struct iowa_bus;
struct celleb_phb_spec {
int (*setup)(struct device_node *, struct pci_controller *);
diff --git a/arch/powerpc/platforms/cell/io-workarounds.c b/arch/powerpc/platforms/cell/io-workarounds.c
deleted file mode 100644
index 5c1118e31940..000000000000
--- a/arch/powerpc/platforms/cell/io-workarounds.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Support PCI IO workaround
- *
- * Copyright (C) 2006 Benjamin Herrenschmidt <benh@kernel.crashing.org>
- * IBM, Corp.
- * (C) Copyright 2007-2008 TOSHIBA CORPORATION
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#undef DEBUG
-
-#include <linux/kernel.h>
-
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/pgtable.h>
-#include <asm/ppc-pci.h>
-
-#include "io-workarounds.h"
-
-#define IOWA_MAX_BUS 8
-
-static struct iowa_bus iowa_busses[IOWA_MAX_BUS];
-static unsigned int iowa_bus_count;
-
-static struct iowa_bus *iowa_pci_find(unsigned long vaddr, unsigned long paddr)
-{
- int i, j;
- struct resource *res;
- unsigned long vstart, vend;
-
- for (i = 0; i < iowa_bus_count; i++) {
- struct iowa_bus *bus = &iowa_busses[i];
- struct pci_controller *phb = bus->phb;
-
- if (vaddr) {
- vstart = (unsigned long)phb->io_base_virt;
- vend = vstart + phb->pci_io_size - 1;
- if ((vaddr >= vstart) && (vaddr <= vend))
- return bus;
- }
-
- if (paddr)
- for (j = 0; j < 3; j++) {
- res = &phb->mem_resources[j];
- if (paddr >= res->start && paddr <= res->end)
- return bus;
- }
- }
-
- return NULL;
-}
-
-struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR addr)
-{
- struct iowa_bus *bus;
- int token;
-
- token = PCI_GET_ADDR_TOKEN(addr);
-
- if (token && token <= iowa_bus_count)
- bus = &iowa_busses[token - 1];
- else {
- unsigned long vaddr, paddr;
- pte_t *ptep;
-
- vaddr = (unsigned long)PCI_FIX_ADDR(addr);
- if (vaddr < PHB_IO_BASE || vaddr >= PHB_IO_END)
- return NULL;
-
- ptep = find_linux_pte(init_mm.pgd, vaddr);
- if (ptep == NULL)
- paddr = 0;
- else
- paddr = pte_pfn(*ptep) << PAGE_SHIFT;
- bus = iowa_pci_find(vaddr, paddr);
-
- if (bus == NULL)
- return NULL;
- }
-
- return bus;
-}
-
-struct iowa_bus *iowa_pio_find_bus(unsigned long port)
-{
- unsigned long vaddr = (unsigned long)pci_io_base + port;
- return iowa_pci_find(vaddr, 0);
-}
-
-
-#define DEF_PCI_AC_RET(name, ret, at, al, space, aa) \
-static ret iowa_##name at \
-{ \
- struct iowa_bus *bus; \
- bus = iowa_##space##_find_bus(aa); \
- if (bus && bus->ops && bus->ops->name) \
- return bus->ops->name al; \
- return __do_##name al; \
-}
-
-#define DEF_PCI_AC_NORET(name, at, al, space, aa) \
-static void iowa_##name at \
-{ \
- struct iowa_bus *bus; \
- bus = iowa_##space##_find_bus(aa); \
- if (bus && bus->ops && bus->ops->name) { \
- bus->ops->name al; \
- return; \
- } \
- __do_##name al; \
-}
-
-#include <asm/io-defs.h>
-
-#undef DEF_PCI_AC_RET
-#undef DEF_PCI_AC_NORET
-
-static const struct ppc_pci_io __devinitconst iowa_pci_io = {
-
-#define DEF_PCI_AC_RET(name, ret, at, al, space, aa) .name = iowa_##name,
-#define DEF_PCI_AC_NORET(name, at, al, space, aa) .name = iowa_##name,
-
-#include <asm/io-defs.h>
-
-#undef DEF_PCI_AC_RET
-#undef DEF_PCI_AC_NORET
-
-};
-
-static void __iomem *iowa_ioremap(phys_addr_t addr, unsigned long size,
- unsigned long flags, void *caller)
-{
- struct iowa_bus *bus;
- void __iomem *res = __ioremap_caller(addr, size, flags, caller);
- int busno;
-
- bus = iowa_pci_find(0, (unsigned long)addr);
- if (bus != NULL) {
- busno = bus - iowa_busses;
- PCI_SET_ADDR_TOKEN(res, busno + 1);
- }
- return res;
-}
-
-/* Regist new bus to support workaround */
-void __devinit iowa_register_bus(struct pci_controller *phb,
- struct ppc_pci_io *ops,
- int (*initfunc)(struct iowa_bus *, void *), void *data)
-{
- struct iowa_bus *bus;
- struct device_node *np = phb->dn;
-
- if (iowa_bus_count >= IOWA_MAX_BUS) {
- pr_err("IOWA:Too many pci bridges, "
- "workarounds disabled for %s\n", np->full_name);
- return;
- }
-
- bus = &iowa_busses[iowa_bus_count];
- bus->phb = phb;
- bus->ops = ops;
-
- if (initfunc)
- if ((*initfunc)(bus, data))
- return;
-
- iowa_bus_count++;
-
- pr_debug("IOWA:[%d]Add bus, %s.\n", iowa_bus_count-1, np->full_name);
-}
-
-/* enable IO workaround */
-void __devinit io_workaround_init(void)
-{
- static int io_workaround_inited;
-
- if (io_workaround_inited)
- return;
- ppc_pci_io = iowa_pci_io;
- ppc_md.ioremap = iowa_ioremap;
- io_workaround_inited = 1;
-}
diff --git a/arch/powerpc/platforms/cell/io-workarounds.h b/arch/powerpc/platforms/cell/io-workarounds.h
deleted file mode 100644
index 6efc7782ebf2..000000000000
--- a/arch/powerpc/platforms/cell/io-workarounds.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Support PCI IO workaround
- *
- * (C) Copyright 2007-2008 TOSHIBA CORPORATION
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef _IO_WORKAROUNDS_H
-#define _IO_WORKAROUNDS_H
-
-#include <linux/io.h>
-#include <asm/pci-bridge.h>
-
-/* Bus info */
-struct iowa_bus {
- struct pci_controller *phb;
- struct ppc_pci_io *ops;
- void *private;
-};
-
-void __devinit io_workaround_init(void);
-void __devinit iowa_register_bus(struct pci_controller *, struct ppc_pci_io *,
- int (*)(struct iowa_bus *, void *), void *);
-struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR);
-struct iowa_bus *iowa_pio_find_bus(unsigned long);
-
-extern struct ppc_pci_io spiderpci_ops;
-extern int spiderpci_iowa_init(struct iowa_bus *, void *);
-
-#define SPIDER_PCI_REG_BASE 0xd000
-#define SPIDER_PCI_REG_SIZE 0x1000
-#define SPIDER_PCI_VCI_CNTL_STAT 0x0110
-#define SPIDER_PCI_DUMMY_READ 0x0810
-#define SPIDER_PCI_DUMMY_READ_BASE 0x0814
-
-#endif /* _IO_WORKAROUNDS_H */
diff --git a/arch/powerpc/platforms/cell/qpace_setup.c b/arch/powerpc/platforms/cell/qpace_setup.c
index d31c594cfdf3..51e290126bc1 100644
--- a/arch/powerpc/platforms/cell/qpace_setup.c
+++ b/arch/powerpc/platforms/cell/qpace_setup.c
@@ -42,7 +42,6 @@
#include "interrupt.h"
#include "pervasive.h"
#include "ras.h"
-#include "io-workarounds.h"
static void qpace_show_cpuinfo(struct seq_file *m)
{
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index fd57bfe00edf..af7b13cd7110 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -51,11 +51,11 @@
#include <asm/udbg.h>
#include <asm/mpic.h>
#include <asm/cell-regs.h>
+#include <asm/io-workarounds.h>
#include "interrupt.h"
#include "pervasive.h"
#include "ras.h"
-#include "io-workarounds.h"
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
diff --git a/arch/powerpc/platforms/cell/spider-pci.c b/arch/powerpc/platforms/cell/spider-pci.c
index ca7731c0b595..f1f7878893f3 100644
--- a/arch/powerpc/platforms/cell/spider-pci.c
+++ b/arch/powerpc/platforms/cell/spider-pci.c
@@ -27,8 +27,7 @@
#include <asm/ppc-pci.h>
#include <asm/pci-bridge.h>
-
-#include "io-workarounds.h"
+#include <asm/io-workarounds.h>
#define SPIDER_PCI_DISABLE_PREFETCH