[PATCH 3/4] m68k: add IO access definitions to support PCI on ColdFire platforms

gerg
2012-06-29T05:17:48Z

From: Greg Ungerer <gerg@uclinux.org>

Define the usual memory access functions (readb/writeb/...) and I/O space
functions (inb/outb/...) for PCI bus support on ColdFire CPU based platforms.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
arch/m68k/include/asm/io_mm.h | 48 ++++++++++++++++++++++++++++++++++++++++-
1 files changed, 47 insertions(+), 1 deletions(-)

diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index b85dbef..a6686d2 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -65,7 +65,53 @@

-#ifdef CONFIG_ISA
+#if defined(CONFIG_PCI) && defined(CONFIG_COLDFIRE)
+
+#define HAVE_ARCH_PIO_SIZE
+#define PIO_OFFSET 0
+#define PIO_MASK 0xffff
+#define PIO_RESERVED 0x10000
+
+u8 mcf_pci_inb(u32 addr);
+u16 mcf_pci_inw(u32 addr);
+u32 mcf_pci_inl(u32 addr);
+void mcf_pci_insb(u32 addr, u8 *buf, u32 len);
+void mcf_pci_insw(u32 addr, u16 *buf, u32 len);
+void mcf_pci_insl(u32 addr, u32 *buf, u32 len);
+
+void mcf_pci_outb(u8 v, u32 addr);
+void mcf_pci_outw(u16 v, u32 addr);
+void mcf_pci_outl(u32 v, u32 addr);
+void mcf_pci_outsb(u32 addr, const u8 *buf, u32 len);
+void mcf_pci_outsw(u32 addr, const u16 *buf, u32 len);
+void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len);
+
+#define inb mcf_pci_inb
+#define inb_p mcf_pci_inb
+#define inw mcf_pci_inw
+#define inw_p mcf_pci_inw
+#define inl mcf_pci_inl
+#define inl_p mcf_pci_inl
+#define insb mcf_pci_insb
+#define insw mcf_pci_insw
+#define insl mcf_pci_insl
+
+#define outb mcf_pci_outb
+#define outb_p mcf_pci_outb
+#define outw mcf_pci_outw
+#define outw_p mcf_pci_outw
+#define outl mcf_pci_outl
+#define outl_p mcf_pci_outl
+#define outsb mcf_pci_outsb
+#define outsw mcf_pci_outsw
+#define outsl mcf_pci_outsl
+
+#define readb(addr) in_8(addr)
+#define writeb(v, addr) out_8((addr), (v))
+#define readw(addr) in_le16(addr)
+#define writew(v, addr) out_le16((addr), (v))
+
+#elif defined(CONFIG_ISA)

#if MULTI_ISA == 0
#undef MULTI_ISA
--
1.7.0.4