Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 1163 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp4xx/include/mach/cpu.h b/arch/arm/mach-ixp4xx/include/mach/cpu.h
new file mode 100644
index 000000000..b872a5354
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/cpu.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/mach-ixp4xx/include/mach/cpu.h
+ *
+ * IXP4XX cpu type detection
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ */
+
+#ifndef __ASM_ARCH_CPU_H__
+#define __ASM_ARCH_CPU_H__
+
+#include <linux/io.h>
+#include <asm/cputype.h>
+
+/* Processor id value in CP15 Register 0 */
+#define IXP42X_PROCESSOR_ID_VALUE	0x690541c0 /* including unused 0x690541Ex */
+#define IXP42X_PROCESSOR_ID_MASK	0xffffffc0
+
+#define IXP43X_PROCESSOR_ID_VALUE	0x69054040
+#define IXP43X_PROCESSOR_ID_MASK	0xfffffff0
+
+#define IXP46X_PROCESSOR_ID_VALUE	0x69054200 /* including IXP455 */
+#define IXP46X_PROCESSOR_ID_MASK	0xfffffff0
+
+#define cpu_is_ixp42x_rev_a0() ((read_cpuid_id() & (IXP42X_PROCESSOR_ID_MASK | 0xF)) == \
+				IXP42X_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp42x()	((read_cpuid_id() & IXP42X_PROCESSOR_ID_MASK) == \
+			 IXP42X_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp43x()	((read_cpuid_id() & IXP43X_PROCESSOR_ID_MASK) == \
+			 IXP43X_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp46x()	((read_cpuid_id() & IXP46X_PROCESSOR_ID_MASK) == \
+			 IXP46X_PROCESSOR_ID_VALUE)
+
+static inline u32 ixp4xx_read_feature_bits(void)
+{
+	u32 val = ~__raw_readl(IXP4XX_EXP_CFG2);
+
+	if (cpu_is_ixp42x_rev_a0())
+		return IXP42X_FEATURE_MASK & ~(IXP4XX_FEATURE_RCOMP |
+					       IXP4XX_FEATURE_AES);
+	if (cpu_is_ixp42x())
+		return val & IXP42X_FEATURE_MASK;
+	if (cpu_is_ixp43x())
+		return val & IXP43X_FEATURE_MASK;
+	return val & IXP46X_FEATURE_MASK;
+}
+
+static inline void ixp4xx_write_feature_bits(u32 value)
+{
+	__raw_writel(~value, IXP4XX_EXP_CFG2);
+}
+
+#endif  /* _ASM_ARCH_CPU_H */
diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h
new file mode 100644
index 000000000..b884eedcd
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/mach-ixp4xx/include/mach/hardware.h 
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ */
+
+/*
+ * Hardware definitions for IXP4xx based systems
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#define __ASM_ARCH_HARDWARE_H__
+
+#ifdef CONFIG_IXP4XX_INDIRECT_PCI
+#define PCIBIOS_MAX_MEM		0x4FFFFFFF
+#else
+#define PCIBIOS_MAX_MEM		0x4BFFFFFF
+#endif
+
+/* Register locations and bits */
+#include "ixp4xx-regs.h"
+
+#ifndef __ASSEMBLER__
+#include <mach/cpu.h>
+#endif
+
+/* Platform helper functions and definitions */
+#include "platform.h"
+
+#endif  /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h
new file mode 100644
index 000000000..014cf6dca
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/io.h
@@ -0,0 +1,545 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/mach-ixp4xx/include/mach/io.h
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002-2005  MontaVista Software, Inc.
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include <linux/bitops.h>
+
+#include <mach/hardware.h>
+
+extern int (*ixp4xx_pci_read)(u32 addr, u32 cmd, u32* data);
+extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
+
+
+/*
+ * IXP4xx provides two methods of accessing PCI memory space:
+ *
+ * 1) A direct mapped window from 0x48000000 to 0x4BFFFFFF (64MB).
+ *    To access PCI via this space, we simply ioremap() the BAR
+ *    into the kernel and we can use the standard read[bwl]/write[bwl]
+ *    macros. This is the preffered method due to speed but it
+ *    limits the system to just 64MB of PCI memory. This can be
+ *    problematic if using video cards and other memory-heavy targets.
+ *
+ * 2) If > 64MB of memory space is required, the IXP4xx can use indirect
+ *    registers to access the whole 4 GB of PCI memory space (as we do below
+ *    for I/O transactions). This allows currently for up to 1 GB (0x10000000
+ *    to 0x4FFFFFFF) of memory on the bus. The disadvantage of this is that
+ *    every PCI access requires three local register accesses plus a spinlock,
+ *    but in some cases the performance hit is acceptable. In addition, you
+ *    cannot mmap() PCI devices in this case.
+ */
+#ifdef	CONFIG_IXP4XX_INDIRECT_PCI
+
+/*
+ * In the case of using indirect PCI, we simply return the actual PCI
+ * address and our read/write implementation use that to drive the 
+ * access registers. If something outside of PCI is ioremap'd, we
+ * fallback to the default.
+ */
+
+extern unsigned long pcibios_min_mem;
+static inline int is_pci_memory(u32 addr)
+{
+	return (addr >= pcibios_min_mem) && (addr <= 0x4FFFFFFF);
+}
+
+#define writeb(v, p)			__indirect_writeb(v, p)
+#define writew(v, p)			__indirect_writew(v, p)
+#define writel(v, p)			__indirect_writel(v, p)
+
+#define writeb_relaxed(v, p)		__indirect_writeb(v, p)
+#define writew_relaxed(v, p)		__indirect_writew(v, p)
+#define writel_relaxed(v, p)		__indirect_writel(v, p)
+
+#define writesb(p, v, l)		__indirect_writesb(p, v, l)
+#define writesw(p, v, l)		__indirect_writesw(p, v, l)
+#define writesl(p, v, l)		__indirect_writesl(p, v, l)
+
+#define readb(p)			__indirect_readb(p)
+#define readw(p)			__indirect_readw(p)
+#define readl(p)			__indirect_readl(p)
+
+#define readb_relaxed(p)		__indirect_readb(p)
+#define readw_relaxed(p)		__indirect_readw(p)
+#define readl_relaxed(p)		__indirect_readl(p)
+
+#define readsb(p, v, l)			__indirect_readsb(p, v, l)
+#define readsw(p, v, l)			__indirect_readsw(p, v, l)
+#define readsl(p, v, l)			__indirect_readsl(p, v, l)
+
+static inline void __indirect_writeb(u8 value, volatile void __iomem *p)
+{
+	u32 addr = (u32)p;
+	u32 n, byte_enables, data;
+
+	if (!is_pci_memory(addr)) {
+		__raw_writeb(value, p);
+		return;
+	}
+
+	n = addr % 4;
+	byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL;
+	data = value << (8*n);
+	ixp4xx_pci_write(addr, byte_enables | NP_CMD_MEMWRITE, data);
+}
+
+static inline void __indirect_writesb(volatile void __iomem *bus_addr,
+				      const void *p, int count)
+{
+	const u8 *vaddr = p;
+
+	while (count--)
+		writeb(*vaddr++, bus_addr);
+}
+
+static inline void __indirect_writew(u16 value, volatile void __iomem *p)
+{
+	u32 addr = (u32)p;
+	u32 n, byte_enables, data;
+
+	if (!is_pci_memory(addr)) {
+		__raw_writew(value, p);
+		return;
+	}
+
+	n = addr % 4;
+	byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL;
+	data = value << (8*n);
+	ixp4xx_pci_write(addr, byte_enables | NP_CMD_MEMWRITE, data);
+}
+
+static inline void __indirect_writesw(volatile void __iomem *bus_addr,
+				      const void *p, int count)
+{
+	const u16 *vaddr = p;
+
+	while (count--)
+		writew(*vaddr++, bus_addr);
+}
+
+static inline void __indirect_writel(u32 value, volatile void __iomem *p)
+{
+	u32 addr = (__force u32)p;
+
+	if (!is_pci_memory(addr)) {
+		__raw_writel(value, p);
+		return;
+	}
+
+	ixp4xx_pci_write(addr, NP_CMD_MEMWRITE, value);
+}
+
+static inline void __indirect_writesl(volatile void __iomem *bus_addr,
+				      const void *p, int count)
+{
+	const u32 *vaddr = p;
+	while (count--)
+		writel(*vaddr++, bus_addr);
+}
+
+static inline u8 __indirect_readb(const volatile void __iomem *p)
+{
+	u32 addr = (u32)p;
+	u32 n, byte_enables, data;
+
+	if (!is_pci_memory(addr))
+		return __raw_readb(p);
+
+	n = addr % 4;
+	byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL;
+	if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_MEMREAD, &data))
+		return 0xff;
+
+	return data >> (8*n);
+}
+
+static inline void __indirect_readsb(const volatile void __iomem *bus_addr,
+				     void *p, u32 count)
+{
+	u8 *vaddr = p;
+
+	while (count--)
+		*vaddr++ = readb(bus_addr);
+}
+
+static inline u16 __indirect_readw(const volatile void __iomem *p)
+{
+	u32 addr = (u32)p;
+	u32 n, byte_enables, data;
+
+	if (!is_pci_memory(addr))
+		return __raw_readw(p);
+
+	n = addr % 4;
+	byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL;
+	if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_MEMREAD, &data))
+		return 0xffff;
+
+	return data>>(8*n);
+}
+
+static inline void __indirect_readsw(const volatile void __iomem *bus_addr,
+				     void *p, u32 count)
+{
+	u16 *vaddr = p;
+
+	while (count--)
+		*vaddr++ = readw(bus_addr);
+}
+
+static inline u32 __indirect_readl(const volatile void __iomem *p)
+{
+	u32 addr = (__force u32)p;
+	u32 data;
+
+	if (!is_pci_memory(addr))
+		return __raw_readl(p);
+
+	if (ixp4xx_pci_read(addr, NP_CMD_MEMREAD, &data))
+		return 0xffffffff;
+
+	return data;
+}
+
+static inline void __indirect_readsl(const volatile void __iomem *bus_addr,
+				     void *p, u32 count)
+{
+	u32 *vaddr = p;
+
+	while (count--)
+		*vaddr++ = readl(bus_addr);
+}
+
+
+/*
+ * We can use the built-in functions b/c they end up calling writeb/readb
+ */
+#define memset_io(c,v,l)		_memset_io((c),(v),(l))
+#define memcpy_fromio(a,c,l)		_memcpy_fromio((a),(c),(l))
+#define memcpy_toio(c,a,l)		_memcpy_toio((c),(a),(l))
+
+#endif /* CONFIG_IXP4XX_INDIRECT_PCI */
+
+#ifndef CONFIG_PCI
+
+#define	__io(v)		__typesafe_io(v)
+
+#else
+
+/*
+ * IXP4xx does not have a transparent cpu -> PCI I/O translation
+ * window.  Instead, it has a set of registers that must be tweaked
+ * with the proper byte lanes, command types, and address for the
+ * transaction.  This means that we need to override the default
+ * I/O functions.
+ */
+
+#define outb outb
+static inline void outb(u8 value, u32 addr)
+{
+	u32 n, byte_enables, data;
+	n = addr % 4;
+	byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL;
+	data = value << (8*n);
+	ixp4xx_pci_write(addr, byte_enables | NP_CMD_IOWRITE, data);
+}
+
+#define outsb outsb
+static inline void outsb(u32 io_addr, const void *p, u32 count)
+{
+	const u8 *vaddr = p;
+
+	while (count--)
+		outb(*vaddr++, io_addr);
+}
+
+#define outw outw
+static inline void outw(u16 value, u32 addr)
+{
+	u32 n, byte_enables, data;
+	n = addr % 4;
+	byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL;
+	data = value << (8*n);
+	ixp4xx_pci_write(addr, byte_enables | NP_CMD_IOWRITE, data);
+}
+
+#define outsw outsw
+static inline void outsw(u32 io_addr, const void *p, u32 count)
+{
+	const u16 *vaddr = p;
+	while (count--)
+		outw(cpu_to_le16(*vaddr++), io_addr);
+}
+
+#define outl outl
+static inline void outl(u32 value, u32 addr)
+{
+	ixp4xx_pci_write(addr, NP_CMD_IOWRITE, value);
+}
+
+#define outsl outsl
+static inline void outsl(u32 io_addr, const void *p, u32 count)
+{
+	const u32 *vaddr = p;
+	while (count--)
+		outl(cpu_to_le32(*vaddr++), io_addr);
+}
+
+#define inb inb
+static inline u8 inb(u32 addr)
+{
+	u32 n, byte_enables, data;
+	n = addr % 4;
+	byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL;
+	if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_IOREAD, &data))
+		return 0xff;
+
+	return data >> (8*n);
+}
+
+#define insb insb
+static inline void insb(u32 io_addr, void *p, u32 count)
+{
+	u8 *vaddr = p;
+	while (count--)
+		*vaddr++ = inb(io_addr);
+}
+
+#define inw inw
+static inline u16 inw(u32 addr)
+{
+	u32 n, byte_enables, data;
+	n = addr % 4;
+	byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL;
+	if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_IOREAD, &data))
+		return 0xffff;
+
+	return data>>(8*n);
+}
+
+#define insw insw
+static inline void insw(u32 io_addr, void *p, u32 count)
+{
+	u16 *vaddr = p;
+	while (count--)
+		*vaddr++ = le16_to_cpu(inw(io_addr));
+}
+
+#define inl inl
+static inline u32 inl(u32 addr)
+{
+	u32 data;
+	if (ixp4xx_pci_read(addr, NP_CMD_IOREAD, &data))
+		return 0xffffffff;
+
+	return data;
+}
+
+#define insl insl
+static inline void insl(u32 io_addr, void *p, u32 count)
+{
+	u32 *vaddr = p;
+	while (count--)
+		*vaddr++ = le32_to_cpu(inl(io_addr));
+}
+
+#define PIO_OFFSET      0x10000UL
+#define PIO_MASK        0x0ffffUL
+
+#define	__is_io_address(p)	(((unsigned long)p >= PIO_OFFSET) && \
+					((unsigned long)p <= (PIO_MASK + PIO_OFFSET)))
+
+#define	ioread8(p)			ioread8(p)
+static inline u8 ioread8(const void __iomem *addr)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		return (unsigned int)inb(port & PIO_MASK);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		return (unsigned int)__raw_readb(addr);
+#else
+		return (unsigned int)__indirect_readb(addr);
+#endif
+}
+
+#define	ioread8_rep(p, v, c)		ioread8_rep(p, v, c)
+static inline void ioread8_rep(const void __iomem *addr, void *vaddr, u32 count)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		insb(port & PIO_MASK, vaddr, count);
+	else
+#ifndef	CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_readsb(addr, vaddr, count);
+#else
+		__indirect_readsb(addr, vaddr, count);
+#endif
+}
+
+#define	ioread16(p)			ioread16(p)
+static inline u16 ioread16(const void __iomem *addr)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		return	(unsigned int)inw(port & PIO_MASK);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		return le16_to_cpu((__force __le16)__raw_readw(addr));
+#else
+		return (unsigned int)__indirect_readw(addr);
+#endif
+}
+
+#define	ioread16_rep(p, v, c)		ioread16_rep(p, v, c)
+static inline void ioread16_rep(const void __iomem *addr, void *vaddr,
+				u32 count)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		insw(port & PIO_MASK, vaddr, count);
+	else
+#ifndef	CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_readsw(addr, vaddr, count);
+#else
+		__indirect_readsw(addr, vaddr, count);
+#endif
+}
+
+#define	ioread32(p)			ioread32(p)
+static inline u32 ioread32(const void __iomem *addr)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		return	(unsigned int)inl(port & PIO_MASK);
+	else {
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		return le32_to_cpu((__force __le32)__raw_readl(addr));
+#else
+		return (unsigned int)__indirect_readl(addr);
+#endif
+	}
+}
+
+#define	ioread32_rep(p, v, c)		ioread32_rep(p, v, c)
+static inline void ioread32_rep(const void __iomem *addr, void *vaddr,
+				u32 count)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		insl(port & PIO_MASK, vaddr, count);
+	else
+#ifndef	CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_readsl(addr, vaddr, count);
+#else
+		__indirect_readsl(addr, vaddr, count);
+#endif
+}
+
+#define	iowrite8(v, p)			iowrite8(v, p)
+static inline void iowrite8(u8 value, void __iomem *addr)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		outb(value, port & PIO_MASK);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_writeb(value, addr);
+#else
+		__indirect_writeb(value, addr);
+#endif
+}
+
+#define	iowrite8_rep(p, v, c)		iowrite8_rep(p, v, c)
+static inline void iowrite8_rep(void __iomem *addr, const void *vaddr,
+				u32 count)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		outsb(port & PIO_MASK, vaddr, count);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_writesb(addr, vaddr, count);
+#else
+		__indirect_writesb(addr, vaddr, count);
+#endif
+}
+
+#define	iowrite16(v, p)			iowrite16(v, p)
+static inline void iowrite16(u16 value, void __iomem *addr)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		outw(value, port & PIO_MASK);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_writew(cpu_to_le16(value), addr);
+#else
+		__indirect_writew(value, addr);
+#endif
+}
+
+#define	iowrite16_rep(p, v, c)		iowrite16_rep(p, v, c)
+static inline void iowrite16_rep(void __iomem *addr, const void *vaddr,
+				 u32 count)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		outsw(port & PIO_MASK, vaddr, count);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_writesw(addr, vaddr, count);
+#else
+		__indirect_writesw(addr, vaddr, count);
+#endif
+}
+
+#define	iowrite32(v, p)			iowrite32(v, p)
+static inline void iowrite32(u32 value, void __iomem *addr)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		outl(value, port & PIO_MASK);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_writel((u32 __force)cpu_to_le32(value), addr);
+#else
+		__indirect_writel(value, addr);
+#endif
+}
+
+#define	iowrite32_rep(p, v, c)		iowrite32_rep(p, v, c)
+static inline void iowrite32_rep(void __iomem *addr, const void *vaddr,
+				 u32 count)
+{
+	unsigned long port = (unsigned long __force)addr;
+	if (__is_io_address(port))
+		outsl(port & PIO_MASK, vaddr, count);
+	else
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+		__raw_writesl(addr, vaddr, count);
+#else
+		__indirect_writesl(addr, vaddr, count);
+#endif
+}
+
+#define ioport_map(port, nr) ioport_map(port, nr)
+static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+	return ((void __iomem*)((port) + PIO_OFFSET));
+}
+#define	ioport_unmap(addr) ioport_unmap(addr)
+static inline void ioport_unmap(void __iomem *addr)
+{
+}
+#endif /* CONFIG_PCI */
+
+#endif /* __ASM_ARM_ARCH_IO_H */
diff --git a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
new file mode 100644
index 000000000..708d085ce
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
@@ -0,0 +1,356 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
+ *
+ * Register definitions for IXP4xx chipset. This file contains 
+ * register location and bit definitions only. Platform specific 
+ * definitions and helper function declarations are in platform.h 
+ * and machine-name.h.
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ */
+
+#ifndef _ASM_ARM_IXP4XX_H_
+#define _ASM_ARM_IXP4XX_H_
+
+/*
+ * IXP4xx Linux Memory Map:
+ *
+ * Phy		Size		Virt		Description
+ * =========================================================================
+ *
+ * 0x00000000	0x10000000(max)	PAGE_OFFSET	System RAM
+ *
+ * 0x48000000	0x04000000	ioremap'd	PCI Memory Space
+ *
+ * 0x50000000	0x10000000	ioremap'd	EXP BUS
+ *
+ * 0xC8000000	0x00013000	0xFEF00000	On-Chip Peripherals
+ *
+ * 0xC0000000	0x00001000	0xFEF13000	PCI CFG
+ *
+ * 0xC4000000	0x00001000	0xFEF14000	EXP CFG
+ *
+ * 0x60000000	0x00004000	0xFEF15000	QMgr
+ */
+
+/*
+ * Queue Manager
+ */
+#define IXP4XX_QMGR_BASE_PHYS		0x60000000
+
+/*
+ * Peripheral space, including debug UART. Must be section-aligned so that
+ * it can be used with the low-level debug code.
+ */
+#define IXP4XX_PERIPHERAL_BASE_PHYS	0xC8000000
+#define IXP4XX_PERIPHERAL_BASE_VIRT	IOMEM(0xFEF00000)
+#define IXP4XX_PERIPHERAL_REGION_SIZE	0x00013000
+
+/*
+ * PCI Config registers
+ */
+#define IXP4XX_PCI_CFG_BASE_PHYS	0xC0000000
+#define IXP4XX_PCI_CFG_BASE_VIRT	IOMEM(0xFEF13000)
+#define IXP4XX_PCI_CFG_REGION_SIZE	0x00001000
+
+/*
+ * Expansion BUS Configuration registers
+ */
+#define IXP4XX_EXP_CFG_BASE_PHYS	0xC4000000
+#define IXP4XX_EXP_CFG_BASE_VIRT	0xFEF14000
+#define IXP4XX_EXP_CFG_REGION_SIZE	0x00001000
+
+#define IXP4XX_EXP_CS0_OFFSET	0x00
+#define IXP4XX_EXP_CS1_OFFSET   0x04
+#define IXP4XX_EXP_CS2_OFFSET   0x08
+#define IXP4XX_EXP_CS3_OFFSET   0x0C
+#define IXP4XX_EXP_CS4_OFFSET   0x10
+#define IXP4XX_EXP_CS5_OFFSET   0x14
+#define IXP4XX_EXP_CS6_OFFSET   0x18
+#define IXP4XX_EXP_CS7_OFFSET   0x1C
+#define IXP4XX_EXP_CFG0_OFFSET	0x20
+#define IXP4XX_EXP_CFG1_OFFSET	0x24
+#define IXP4XX_EXP_CFG2_OFFSET	0x28
+#define IXP4XX_EXP_CFG3_OFFSET	0x2C
+
+/*
+ * Expansion Bus Controller registers.
+ */
+#define IXP4XX_EXP_REG(x) ((volatile u32 __iomem *)(IXP4XX_EXP_CFG_BASE_VIRT+(x)))
+
+#define IXP4XX_EXP_CS0      IXP4XX_EXP_REG(IXP4XX_EXP_CS0_OFFSET)
+#define IXP4XX_EXP_CS1      IXP4XX_EXP_REG(IXP4XX_EXP_CS1_OFFSET)
+#define IXP4XX_EXP_CS2      IXP4XX_EXP_REG(IXP4XX_EXP_CS2_OFFSET) 
+#define IXP4XX_EXP_CS3      IXP4XX_EXP_REG(IXP4XX_EXP_CS3_OFFSET)
+#define IXP4XX_EXP_CS4      IXP4XX_EXP_REG(IXP4XX_EXP_CS4_OFFSET)
+#define IXP4XX_EXP_CS5      IXP4XX_EXP_REG(IXP4XX_EXP_CS5_OFFSET)
+#define IXP4XX_EXP_CS6      IXP4XX_EXP_REG(IXP4XX_EXP_CS6_OFFSET)     
+#define IXP4XX_EXP_CS7      IXP4XX_EXP_REG(IXP4XX_EXP_CS7_OFFSET)
+
+#define IXP4XX_EXP_CFG0     IXP4XX_EXP_REG(IXP4XX_EXP_CFG0_OFFSET) 
+#define IXP4XX_EXP_CFG1     IXP4XX_EXP_REG(IXP4XX_EXP_CFG1_OFFSET) 
+#define IXP4XX_EXP_CFG2     IXP4XX_EXP_REG(IXP4XX_EXP_CFG2_OFFSET) 
+#define IXP4XX_EXP_CFG3     IXP4XX_EXP_REG(IXP4XX_EXP_CFG3_OFFSET)
+
+
+/*
+ * Peripheral Space Register Region Base Addresses
+ */
+#define IXP4XX_UART1_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x0000)
+#define IXP4XX_UART2_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x1000)
+#define IXP4XX_PMU_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x2000)
+#define IXP4XX_INTC_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x3000)
+#define IXP4XX_GPIO_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x4000)
+#define IXP4XX_TIMER_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x5000)
+#define IXP4XX_NPEA_BASE_PHYS   	(IXP4XX_PERIPHERAL_BASE_PHYS + 0x6000)
+#define IXP4XX_NPEB_BASE_PHYS   	(IXP4XX_PERIPHERAL_BASE_PHYS + 0x7000)
+#define IXP4XX_NPEC_BASE_PHYS   	(IXP4XX_PERIPHERAL_BASE_PHYS + 0x8000)
+#define IXP4XX_EthB_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x9000)
+#define IXP4XX_EthC_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xA000)
+#define IXP4XX_USB_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xB000)
+/* ixp46X only */
+#define IXP4XX_EthA_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xC000)
+#define IXP4XX_EthB1_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xD000)
+#define IXP4XX_EthB2_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xE000)
+#define IXP4XX_EthB3_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xF000)
+#define IXP4XX_TIMESYNC_BASE_PHYS	(IXP4XX_PERIPHERAL_BASE_PHYS + 0x10000)
+#define IXP4XX_I2C_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x11000)
+#define IXP4XX_SSP_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x12000)
+
+
+#define IXP4XX_UART1_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x0000)
+#define IXP4XX_UART2_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x1000)
+#define IXP4XX_PMU_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x2000)
+#define IXP4XX_INTC_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x3000)
+#define IXP4XX_GPIO_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x4000)
+#define IXP4XX_TIMER_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x5000)
+#define IXP4XX_EthB_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x9000)
+#define IXP4XX_EthC_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0xA000)
+#define IXP4XX_USB_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0xB000)
+/* ixp46X only */
+#define IXP4XX_EthA_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0xC000)
+#define IXP4XX_EthB1_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0xD000)
+#define IXP4XX_EthB2_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0xE000)
+#define IXP4XX_EthB3_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0xF000)
+#define IXP4XX_TIMESYNC_BASE_VIRT	(IXP4XX_PERIPHERAL_BASE_VIRT + 0x10000)
+#define IXP4XX_I2C_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x11000)
+#define IXP4XX_SSP_BASE_VIRT		(IXP4XX_PERIPHERAL_BASE_VIRT + 0x12000)
+
+/*
+ * Constants to make it easy to access Timer Control/Status registers
+ */
+#define IXP4XX_OSTS_OFFSET	0x00  /* Continious TimeStamp */
+#define IXP4XX_OST1_OFFSET	0x04  /* Timer 1 Timestamp */
+#define IXP4XX_OSRT1_OFFSET	0x08  /* Timer 1 Reload */
+#define IXP4XX_OST2_OFFSET	0x0C  /* Timer 2 Timestamp */
+#define IXP4XX_OSRT2_OFFSET	0x10  /* Timer 2 Reload */
+#define IXP4XX_OSWT_OFFSET	0x14  /* Watchdog Timer */
+#define IXP4XX_OSWE_OFFSET	0x18  /* Watchdog Enable */
+#define IXP4XX_OSWK_OFFSET	0x1C  /* Watchdog Key */
+#define IXP4XX_OSST_OFFSET	0x20  /* Timer Status */
+
+/*
+ * Operating System Timer Register Definitions.
+ */
+
+#define IXP4XX_TIMER_REG(x) ((volatile u32 *)(IXP4XX_TIMER_BASE_VIRT+(x)))
+
+#define IXP4XX_OSTS	IXP4XX_TIMER_REG(IXP4XX_OSTS_OFFSET)
+#define IXP4XX_OST1	IXP4XX_TIMER_REG(IXP4XX_OST1_OFFSET)
+#define IXP4XX_OSRT1	IXP4XX_TIMER_REG(IXP4XX_OSRT1_OFFSET)
+#define IXP4XX_OST2	IXP4XX_TIMER_REG(IXP4XX_OST2_OFFSET)
+#define IXP4XX_OSRT2	IXP4XX_TIMER_REG(IXP4XX_OSRT2_OFFSET)
+#define IXP4XX_OSWT	IXP4XX_TIMER_REG(IXP4XX_OSWT_OFFSET)
+#define IXP4XX_OSWE	IXP4XX_TIMER_REG(IXP4XX_OSWE_OFFSET)
+#define IXP4XX_OSWK	IXP4XX_TIMER_REG(IXP4XX_OSWK_OFFSET)
+#define IXP4XX_OSST	IXP4XX_TIMER_REG(IXP4XX_OSST_OFFSET)
+
+/*
+ * Timer register values and bit definitions 
+ */
+#define IXP4XX_OST_ENABLE		0x00000001
+#define IXP4XX_OST_ONE_SHOT		0x00000002
+/* Low order bits of reload value ignored */
+#define IXP4XX_OST_RELOAD_MASK		0x00000003
+#define IXP4XX_OST_DISABLED		0x00000000
+#define IXP4XX_OSST_TIMER_1_PEND	0x00000001
+#define IXP4XX_OSST_TIMER_2_PEND	0x00000002
+#define IXP4XX_OSST_TIMER_TS_PEND	0x00000004
+#define IXP4XX_OSST_TIMER_WDOG_PEND	0x00000008
+#define IXP4XX_OSST_TIMER_WARM_RESET	0x00000010
+
+#define	IXP4XX_WDT_KEY			0x0000482E
+
+#define	IXP4XX_WDT_RESET_ENABLE		0x00000001
+#define	IXP4XX_WDT_IRQ_ENABLE		0x00000002
+#define	IXP4XX_WDT_COUNT_ENABLE		0x00000004
+
+
+/*
+ * Constants to make it easy to access PCI Control/Status registers
+ */
+#define PCI_NP_AD_OFFSET            0x00
+#define PCI_NP_CBE_OFFSET           0x04
+#define PCI_NP_WDATA_OFFSET         0x08
+#define PCI_NP_RDATA_OFFSET         0x0c
+#define PCI_CRP_AD_CBE_OFFSET       0x10
+#define PCI_CRP_WDATA_OFFSET        0x14
+#define PCI_CRP_RDATA_OFFSET        0x18
+#define PCI_CSR_OFFSET              0x1c
+#define PCI_ISR_OFFSET              0x20
+#define PCI_INTEN_OFFSET            0x24
+#define PCI_DMACTRL_OFFSET          0x28
+#define PCI_AHBMEMBASE_OFFSET       0x2c
+#define PCI_AHBIOBASE_OFFSET        0x30
+#define PCI_PCIMEMBASE_OFFSET       0x34
+#define PCI_AHBDOORBELL_OFFSET      0x38
+#define PCI_PCIDOORBELL_OFFSET      0x3C
+#define PCI_ATPDMA0_AHBADDR_OFFSET  0x40
+#define PCI_ATPDMA0_PCIADDR_OFFSET  0x44
+#define PCI_ATPDMA0_LENADDR_OFFSET  0x48
+#define PCI_ATPDMA1_AHBADDR_OFFSET  0x4C
+#define PCI_ATPDMA1_PCIADDR_OFFSET  0x50
+#define PCI_ATPDMA1_LENADDR_OFFSET	0x54
+
+/*
+ * PCI Control/Status Registers
+ */
+#define IXP4XX_PCI_CSR(x) ((volatile u32 *)(IXP4XX_PCI_CFG_BASE_VIRT+(x)))
+
+#define PCI_NP_AD               IXP4XX_PCI_CSR(PCI_NP_AD_OFFSET)
+#define PCI_NP_CBE              IXP4XX_PCI_CSR(PCI_NP_CBE_OFFSET)
+#define PCI_NP_WDATA            IXP4XX_PCI_CSR(PCI_NP_WDATA_OFFSET)
+#define PCI_NP_RDATA            IXP4XX_PCI_CSR(PCI_NP_RDATA_OFFSET)
+#define PCI_CRP_AD_CBE          IXP4XX_PCI_CSR(PCI_CRP_AD_CBE_OFFSET)
+#define PCI_CRP_WDATA           IXP4XX_PCI_CSR(PCI_CRP_WDATA_OFFSET)
+#define PCI_CRP_RDATA           IXP4XX_PCI_CSR(PCI_CRP_RDATA_OFFSET)
+#define PCI_CSR                 IXP4XX_PCI_CSR(PCI_CSR_OFFSET) 
+#define PCI_ISR                 IXP4XX_PCI_CSR(PCI_ISR_OFFSET)
+#define PCI_INTEN               IXP4XX_PCI_CSR(PCI_INTEN_OFFSET)
+#define PCI_DMACTRL             IXP4XX_PCI_CSR(PCI_DMACTRL_OFFSET)
+#define PCI_AHBMEMBASE          IXP4XX_PCI_CSR(PCI_AHBMEMBASE_OFFSET)
+#define PCI_AHBIOBASE           IXP4XX_PCI_CSR(PCI_AHBIOBASE_OFFSET)
+#define PCI_PCIMEMBASE          IXP4XX_PCI_CSR(PCI_PCIMEMBASE_OFFSET)
+#define PCI_AHBDOORBELL         IXP4XX_PCI_CSR(PCI_AHBDOORBELL_OFFSET)
+#define PCI_PCIDOORBELL         IXP4XX_PCI_CSR(PCI_PCIDOORBELL_OFFSET)
+#define PCI_ATPDMA0_AHBADDR     IXP4XX_PCI_CSR(PCI_ATPDMA0_AHBADDR_OFFSET)
+#define PCI_ATPDMA0_PCIADDR     IXP4XX_PCI_CSR(PCI_ATPDMA0_PCIADDR_OFFSET)
+#define PCI_ATPDMA0_LENADDR     IXP4XX_PCI_CSR(PCI_ATPDMA0_LENADDR_OFFSET)
+#define PCI_ATPDMA1_AHBADDR     IXP4XX_PCI_CSR(PCI_ATPDMA1_AHBADDR_OFFSET)
+#define PCI_ATPDMA1_PCIADDR     IXP4XX_PCI_CSR(PCI_ATPDMA1_PCIADDR_OFFSET)
+#define PCI_ATPDMA1_LENADDR     IXP4XX_PCI_CSR(PCI_ATPDMA1_LENADDR_OFFSET)
+
+/*
+ * PCI register values and bit definitions 
+ */
+
+/* CSR bit definitions */
+#define PCI_CSR_HOST    	0x00000001
+#define PCI_CSR_ARBEN   	0x00000002
+#define PCI_CSR_ADS     	0x00000004
+#define PCI_CSR_PDS     	0x00000008
+#define PCI_CSR_ABE     	0x00000010
+#define PCI_CSR_DBT     	0x00000020
+#define PCI_CSR_ASE     	0x00000100
+#define PCI_CSR_IC      	0x00008000
+
+/* ISR (Interrupt status) Register bit definitions */
+#define PCI_ISR_PSE     	0x00000001
+#define PCI_ISR_PFE     	0x00000002
+#define PCI_ISR_PPE     	0x00000004
+#define PCI_ISR_AHBE    	0x00000008
+#define PCI_ISR_APDC    	0x00000010
+#define PCI_ISR_PADC    	0x00000020
+#define PCI_ISR_ADB     	0x00000040
+#define PCI_ISR_PDB     	0x00000080
+
+/* INTEN (Interrupt Enable) Register bit definitions */
+#define PCI_INTEN_PSE   	0x00000001
+#define PCI_INTEN_PFE   	0x00000002
+#define PCI_INTEN_PPE   	0x00000004
+#define PCI_INTEN_AHBE  	0x00000008
+#define PCI_INTEN_APDC  	0x00000010
+#define PCI_INTEN_PADC  	0x00000020
+#define PCI_INTEN_ADB   	0x00000040
+#define PCI_INTEN_PDB   	0x00000080
+
+/*
+ * Shift value for byte enable on NP cmd/byte enable register
+ */
+#define IXP4XX_PCI_NP_CBE_BESL		4
+
+/*
+ * PCI commands supported by NP access unit
+ */
+#define NP_CMD_IOREAD			0x2
+#define NP_CMD_IOWRITE			0x3
+#define NP_CMD_CONFIGREAD		0xa
+#define NP_CMD_CONFIGWRITE		0xb
+#define NP_CMD_MEMREAD			0x6
+#define	NP_CMD_MEMWRITE			0x7
+
+/*
+ * Constants for CRP access into local config space
+ */
+#define CRP_AD_CBE_BESL         20
+#define CRP_AD_CBE_WRITE	0x00010000
+
+#define DCMD_LENGTH	0x01fff		/* length mask (max = 8K - 1) */
+
+/* "fuse" bits of IXP_EXP_CFG2 */
+/* All IXP4xx CPUs */
+#define IXP4XX_FEATURE_RCOMP		(1 << 0)
+#define IXP4XX_FEATURE_USB_DEVICE	(1 << 1)
+#define IXP4XX_FEATURE_HASH		(1 << 2)
+#define IXP4XX_FEATURE_AES		(1 << 3)
+#define IXP4XX_FEATURE_DES		(1 << 4)
+#define IXP4XX_FEATURE_HDLC		(1 << 5)
+#define IXP4XX_FEATURE_AAL		(1 << 6)
+#define IXP4XX_FEATURE_HSS		(1 << 7)
+#define IXP4XX_FEATURE_UTOPIA		(1 << 8)
+#define IXP4XX_FEATURE_NPEB_ETH0	(1 << 9)
+#define IXP4XX_FEATURE_NPEC_ETH		(1 << 10)
+#define IXP4XX_FEATURE_RESET_NPEA	(1 << 11)
+#define IXP4XX_FEATURE_RESET_NPEB	(1 << 12)
+#define IXP4XX_FEATURE_RESET_NPEC	(1 << 13)
+#define IXP4XX_FEATURE_PCI		(1 << 14)
+#define IXP4XX_FEATURE_UTOPIA_PHY_LIMIT	(3 << 16)
+#define IXP4XX_FEATURE_XSCALE_MAX_FREQ	(3 << 22)
+#define IXP42X_FEATURE_MASK		(IXP4XX_FEATURE_RCOMP            | \
+					 IXP4XX_FEATURE_USB_DEVICE       | \
+					 IXP4XX_FEATURE_HASH             | \
+					 IXP4XX_FEATURE_AES              | \
+					 IXP4XX_FEATURE_DES              | \
+					 IXP4XX_FEATURE_HDLC             | \
+					 IXP4XX_FEATURE_AAL              | \
+					 IXP4XX_FEATURE_HSS              | \
+					 IXP4XX_FEATURE_UTOPIA           | \
+					 IXP4XX_FEATURE_NPEB_ETH0        | \
+					 IXP4XX_FEATURE_NPEC_ETH         | \
+					 IXP4XX_FEATURE_RESET_NPEA       | \
+					 IXP4XX_FEATURE_RESET_NPEB       | \
+					 IXP4XX_FEATURE_RESET_NPEC       | \
+					 IXP4XX_FEATURE_PCI              | \
+					 IXP4XX_FEATURE_UTOPIA_PHY_LIMIT | \
+					 IXP4XX_FEATURE_XSCALE_MAX_FREQ)
+
+
+/* IXP43x/46x CPUs */
+#define IXP4XX_FEATURE_ECC_TIMESYNC	(1 << 15)
+#define IXP4XX_FEATURE_USB_HOST		(1 << 18)
+#define IXP4XX_FEATURE_NPEA_ETH		(1 << 19)
+#define IXP43X_FEATURE_MASK		(IXP42X_FEATURE_MASK             | \
+					 IXP4XX_FEATURE_ECC_TIMESYNC     | \
+					 IXP4XX_FEATURE_USB_HOST         | \
+					 IXP4XX_FEATURE_NPEA_ETH)
+
+/* IXP46x CPU (including IXP455) only */
+#define IXP4XX_FEATURE_NPEB_ETH_1_TO_3	(1 << 20)
+#define IXP4XX_FEATURE_RSA		(1 << 21)
+#define IXP46X_FEATURE_MASK		(IXP43X_FEATURE_MASK             | \
+					 IXP4XX_FEATURE_NPEB_ETH_1_TO_3  | \
+					 IXP4XX_FEATURE_RSA)
+
+#endif
diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
new file mode 100644
index 000000000..6d403fe0b
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/arm/mach-ixp4xx/include/mach/platform.h
+ *
+ * Constants and functions that are useful to IXP4xx platform-specific code
+ * and device drivers.
+ *
+ * Copyright (C) 2004 MontaVista Software, Inc.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#error "Do not include this directly, instead #include <mach/hardware.h>"
+#endif
+
+#ifndef __ASSEMBLY__
+
+#include <linux/reboot.h>
+#include <linux/platform_data/eth_ixp4xx.h>
+
+#include <asm/types.h>
+
+#ifndef	__ARMEB__
+#define	REG_OFFSET	0
+#else
+#define	REG_OFFSET	3
+#endif
+
+/*
+ * Expansion bus memory regions
+ */
+#define IXP4XX_EXP_BUS_BASE_PHYS	(0x50000000)
+
+/*
+ * The expansion bus on the IXP4xx can be configured for either 16 or
+ * 32MB windows and the CS offset for each region changes based on the
+ * current configuration. This means that we cannot simply hardcode
+ * each offset. ixp4xx_sys_init() looks at the expansion bus configuration
+ * as setup by the bootloader to determine our window size.
+ */
+extern unsigned long ixp4xx_exp_bus_size;
+
+#define	IXP4XX_EXP_BUS_BASE(region)\
+		(IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size))
+
+#define IXP4XX_EXP_BUS_END(region)\
+		(IXP4XX_EXP_BUS_BASE(region) + ixp4xx_exp_bus_size - 1)
+
+/* Those macros can be used to adjust timing and configure
+ * other features for each region.
+ */
+
+#define IXP4XX_EXP_BUS_RECOVERY_T(x)	(((x) & 0x0f) << 16)
+#define IXP4XX_EXP_BUS_HOLD_T(x)	(((x) & 0x03) << 20)
+#define IXP4XX_EXP_BUS_STROBE_T(x)	(((x) & 0x0f) << 22)
+#define IXP4XX_EXP_BUS_SETUP_T(x)	(((x) & 0x03) << 26)
+#define IXP4XX_EXP_BUS_ADDR_T(x)	(((x) & 0x03) << 28)
+#define IXP4XX_EXP_BUS_SIZE(x)		(((x) & 0x0f) << 10)
+#define IXP4XX_EXP_BUS_CYCLES(x)	(((x) & 0x03) << 14)
+
+#define IXP4XX_EXP_BUS_CS_EN		(1L << 31)
+#define IXP4XX_EXP_BUS_BYTE_RD16	(1L << 6)
+#define IXP4XX_EXP_BUS_HRDY_POL		(1L << 5)
+#define IXP4XX_EXP_BUS_MUX_EN		(1L << 4)
+#define IXP4XX_EXP_BUS_SPLT_EN		(1L << 3)
+#define IXP4XX_EXP_BUS_WR_EN		(1L << 1)
+#define IXP4XX_EXP_BUS_BYTE_EN		(1L << 0)
+
+#define IXP4XX_EXP_BUS_CYCLES_INTEL	0x00
+#define IXP4XX_EXP_BUS_CYCLES_MOTOROLA	0x01
+#define IXP4XX_EXP_BUS_CYCLES_HPI	0x02
+
+#define IXP4XX_FLASH_WRITABLE	(0x2)
+#define IXP4XX_FLASH_DEFAULT	(0xbcd23c40)
+#define IXP4XX_FLASH_WRITE	(0xbcd23c42)
+
+/*
+ * Clock Speed Definitions.
+ */
+#define IXP4XX_PERIPHERAL_BUS_CLOCK 	(66) /* 66MHzi APB BUS   */ 
+#define IXP4XX_UART_XTAL        	14745600
+
+/*
+ * This structure provide a means for the board setup code
+ * to give information to th pata_ixp4xx driver. It is
+ * passed as platform_data.
+ */
+struct ixp4xx_pata_data {
+	volatile u32	*cs0_cfg;
+	volatile u32	*cs1_cfg;
+	unsigned long	cs0_bits;
+	unsigned long	cs1_bits;
+	void __iomem	*cs0;
+	void __iomem	*cs1;
+};
+
+/*
+ * Frequency of clock used for primary clocksource
+ */
+extern unsigned long ixp4xx_timer_freq;
+
+/*
+ * Functions used by platform-level setup code
+ */
+extern void ixp4xx_map_io(void);
+extern void ixp4xx_init_early(void);
+extern void ixp4xx_init_irq(void);
+extern void ixp4xx_sys_init(void);
+extern void ixp4xx_timer_init(void);
+extern void ixp4xx_restart(enum reboot_mode, const char *);
+extern void ixp4xx_pci_preinit(void);
+struct pci_sys_data;
+extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
+extern struct pci_ops ixp4xx_ops;
+
+#endif // __ASSEMBLY__
+
diff --git a/arch/arm/mach-ixp4xx/include/mach/udc.h b/arch/arm/mach-ixp4xx/include/mach/udc.h
new file mode 100644
index 000000000..7bd8b96c8
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/udc.h
@@ -0,0 +1,8 @@
+/*
+ * arch/arm/mach-ixp4xx/include/mach/udc.h
+ *
+ */
+#include <linux/platform_data/pxa2xx_udc.h>
+
+extern void ixp4xx_set_udc_info(struct pxa2xx_udc_mach_info *info);
+
diff --git a/arch/arm/mach-ixp4xx/include/mach/uncompress.h b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
new file mode 100644
index 000000000..9e08b270c
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/mach-ixp4xx/include/mach/uncompress.h 
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ */
+
+#ifndef _ARCH_UNCOMPRESS_H_
+#define _ARCH_UNCOMPRESS_H_
+
+#include "ixp4xx-regs.h"
+#include <asm/mach-types.h>
+#include <linux/serial_reg.h>
+
+#define TX_DONE (UART_LSR_TEMT|UART_LSR_THRE)
+
+volatile u32* uart_base;
+
+static inline void putc(int c)
+{
+	/* Check THRE and TEMT bits before we transmit the character.
+	 */
+	while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
+		barrier();
+
+	*uart_base = c;
+}
+
+static void flush(void)
+{
+}
+
+static __inline__ void __arch_decomp_setup(unsigned long arch_id)
+{
+	/*
+	 * Some boards are using UART2 as console
+	 */
+	if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+	    machine_is_gateway7001() || machine_is_wg302v2() ||
+	    machine_is_devixp() || machine_is_miccpt() || machine_is_mic256())
+		uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
+	else
+		uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;
+}
+
+/*
+ * arch_id is a variable in decompress_kernel()
+ */
+#define arch_decomp_setup()	__arch_decomp_setup(arch_id)
+
+#endif