avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/microblaze/include/asm/asm.h

@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/* FSL macros */
+#define NGET(val, fslnum) \
+	__asm__ __volatile__ ("nget %0, rfsl" #fslnum :"=r" (val));
+
+#define GET(val, fslnum) \
+	__asm__ __volatile__ ("get %0, rfsl" #fslnum :"=r" (val));
+
+#define NCGET(val, fslnum) \
+	__asm__ __volatile__ ("ncget %0, rfsl" #fslnum :"=r" (val));
+
+#define CGET(val, fslnum) \
+	__asm__ __volatile__ ("cget %0, rfsl" #fslnum :"=r" (val));
+
+#define NPUT(val, fslnum) \
+	__asm__ __volatile__ ("nput %0, rfsl" #fslnum ::"r" (val));
+
+#define PUT(val, fslnum) \
+	__asm__ __volatile__ ("put %0, rfsl" #fslnum ::"r" (val));
+
+#define NCPUT(val, fslnum) \
+	__asm__ __volatile__ ("ncput %0, rfsl" #fslnum ::"r" (val));
+
+#define CPUT(val, fslnum) \
+	__asm__ __volatile__ ("cput %0, rfsl" #fslnum ::"r" (val));
+
+/* CPU dependent */
+/* machine status register */
+#define MFS(val, reg) \
+	__asm__ __volatile__ ("mfs %0," #reg :"=r" (val));
+
+#define MTS(val, reg) \
+	__asm__ __volatile__ ("mts " #reg ", %0"::"r" (val));
+
+/* get return address from interrupt */
+#define R14(val) \
+	__asm__ __volatile__ ("addi %0, r14, 0":"=r" (val));
+
+/* get return address from interrupt */
+#define R17(val) \
+	__asm__ __volatile__ ("addi %0, r17, 0" : "=r" (val));
+
+#define NOP	__asm__ __volatile__ ("nop");
+
+/* use machine status registe USE_MSR_REG */
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 1
+#define MSRSET(val) \
+	__asm__ __volatile__ ("msrset r0," #val );
+
+#define MSRCLR(val) \
+	__asm__ __volatile__ ("msrclr r0," #val );
+
+#else
+#define MSRSET(val)						\
+{								\
+	register unsigned tmp;					\
+	__asm__ __volatile__ ("					\
+			mfs	%0, rmsr;			\
+			ori	%0, %0, "#val";			\
+			mts	rmsr, %0;			\
+			nop;"					\
+			: "=r" (tmp)				\
+			: "d" (val)				\
+			: "memory");				\
+}
+
+#define MSRCLR(val)						\
+{								\
+	register unsigned tmp;					\
+	__asm__ __volatile__ ("					\
+			mfs	%0, rmsr;			\
+			andi	%0, %0, ~"#val";		\
+			mts	rmsr, %0;			\
+			nop;"					\
+			: "=r" (tmp)				\
+			: "d" (val)				\
+			: "memory");				\
+}
+#endif

u-boot/arch/microblaze/include/asm/bitops.h

@@ -0,0 +1,375 @@
+#ifndef _MICROBLAZE_BITOPS_H
+#define _MICROBLAZE_BITOPS_H
+
+/*
+ * Copyright 1992, Linus Torvalds.
+ */
+
+#include <asm/byteorder.h>	/* swab32 */
+#include <asm/system.h>		/* save_flags */
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/__ffs.h>
+
+#ifdef __KERNEL__
+/*
+ * The __ functions are not atomic
+ */
+
+/*
+ * ffz = Find First Zero in word. Undefined if no zero exists,
+ * so code should check against ~0UL first..
+ */
+static inline unsigned long ffz(unsigned long word)
+{
+	unsigned long result = 0;
+
+	while(word & 1) {
+		result++;
+		word >>= 1;
+	}
+	return result;
+}
+
+
+static inline void set_bit(int nr, volatile void *addr)
+{
+	int	* a = (int *) addr;
+	int	mask;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	save_flags_cli(flags);
+	*a |= mask;
+	restore_flags(flags);
+}
+
+static inline void __set_bit(int nr, volatile void *addr)
+{
+	int	* a = (int *) addr;
+	int	mask;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	*a |= mask;
+}
+#define PLATFORM__SET_BIT
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+#define smp_mb__before_clear_bit()	barrier()
+#define smp_mb__after_clear_bit()	barrier()
+
+static inline void clear_bit(int nr, volatile void *addr)
+{
+	int	* a = (int *) addr;
+	int	mask;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	save_flags_cli(flags);
+	*a &= ~mask;
+	restore_flags(flags);
+}
+
+#define __clear_bit(nr, addr) clear_bit(nr, addr)
+#define PLATFORM__CLEAR_BIT
+
+static inline void change_bit(int nr, volatile void *addr)
+{
+	int mask;
+	unsigned long flags;
+	unsigned long *ADDR = (unsigned long *) addr;
+
+	ADDR += nr >> 5;
+	mask = 1 << (nr & 31);
+	save_flags_cli(flags);
+	*ADDR ^= mask;
+	restore_flags(flags);
+}
+
+static inline void __change_bit(int nr, volatile void *addr)
+{
+	int mask;
+	unsigned long *ADDR = (unsigned long *) addr;
+
+	ADDR += nr >> 5;
+	mask = 1 << (nr & 31);
+	*ADDR ^= mask;
+}
+
+static inline int test_and_set_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = (volatile unsigned int *) addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	save_flags_cli(flags);
+	retval = (mask & *a) != 0;
+	*a |= mask;
+	restore_flags(flags);
+
+	return retval;
+}
+
+static inline int __test_and_set_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = (volatile unsigned int *) addr;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	retval = (mask & *a) != 0;
+	*a |= mask;
+	return retval;
+}
+
+static inline int test_and_clear_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = (volatile unsigned int *) addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	save_flags_cli(flags);
+	retval = (mask & *a) != 0;
+	*a &= ~mask;
+	restore_flags(flags);
+
+	return retval;
+}
+
+static inline int __test_and_clear_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = (volatile unsigned int *) addr;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	retval = (mask & *a) != 0;
+	*a &= ~mask;
+	return retval;
+}
+
+static inline int test_and_change_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = (volatile unsigned int *) addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	save_flags_cli(flags);
+	retval = (mask & *a) != 0;
+	*a ^= mask;
+	restore_flags(flags);
+
+	return retval;
+}
+
+static inline int __test_and_change_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = (volatile unsigned int *) addr;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	retval = (mask & *a) != 0;
+	*a ^= mask;
+	return retval;
+}
+
+/*
+ * This routine doesn't need to be atomic.
+ */
+static inline int __constant_test_bit(int nr, const volatile void *addr)
+{
+	return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
+}
+
+static inline int __test_bit(int nr, volatile void *addr)
+{
+	int	* a = (int *) addr;
+	int	mask;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	return ((mask & *a) != 0);
+}
+
+#define test_bit(nr,addr) \
+(__builtin_constant_p(nr) ? \
+ __constant_test_bit((nr),(addr)) : \
+ __test_bit((nr),(addr)))
+
+#define find_first_zero_bit(addr, size) \
+	find_next_zero_bit((addr), (size), 0)
+
+static inline int find_next_zero_bit(void *addr, int size, int offset)
+{
+	unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
+	unsigned long result = offset & ~31UL;
+	unsigned long tmp;
+
+	if (offset >= size)
+		return size;
+	size -= result;
+	offset &= 31UL;
+	if (offset) {
+		tmp = *(p++);
+		tmp |= ~0UL >> (32-offset);
+		if (size < 32)
+			goto found_first;
+		if (~tmp)
+			goto found_middle;
+		size -= 32;
+		result += 32;
+	}
+	while (size & ~31UL) {
+		if (~(tmp = *(p++)))
+			goto found_middle;
+		result += 32;
+		size -= 32;
+	}
+	if (!size)
+		return result;
+	tmp = *p;
+
+found_first:
+	tmp |= ~0UL >> size;
+found_middle:
+	return result + ffz(tmp);
+}
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+
+#define hweight32(x) generic_hweight32(x)
+#define hweight16(x) generic_hweight16(x)
+#define hweight8(x) generic_hweight8(x)
+
+
+static inline int ext2_set_bit(int nr, volatile void *addr)
+{
+	int		mask, retval;
+	unsigned long	flags;
+	volatile unsigned char	*ADDR = (unsigned char *) addr;
+
+	ADDR += nr >> 3;
+	mask = 1 << (nr & 0x07);
+	save_flags_cli(flags);
+	retval = (mask & *ADDR) != 0;
+	*ADDR |= mask;
+	restore_flags(flags);
+	return retval;
+}
+
+static inline int ext2_clear_bit(int nr, volatile void *addr)
+{
+	int		mask, retval;
+	unsigned long	flags;
+	volatile unsigned char	*ADDR = (unsigned char *) addr;
+
+	ADDR += nr >> 3;
+	mask = 1 << (nr & 0x07);
+	save_flags_cli(flags);
+	retval = (mask & *ADDR) != 0;
+	*ADDR &= ~mask;
+	restore_flags(flags);
+	return retval;
+}
+
+static inline int ext2_test_bit(int nr, const volatile void *addr)
+{
+	int			mask;
+	const volatile unsigned char	*ADDR = (const unsigned char *) addr;
+
+	ADDR += nr >> 3;
+	mask = 1 << (nr & 0x07);
+	return ((mask & *ADDR) != 0);
+}
+
+#define ext2_find_first_zero_bit(addr, size) \
+	ext2_find_next_zero_bit((addr), (size), 0)
+
+static inline unsigned long ext2_find_next_zero_bit(void *addr,
+				unsigned long size, unsigned long offset)
+{
+	unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
+	unsigned long result = offset & ~31UL;
+	unsigned long tmp;
+
+	if (offset >= size)
+		return size;
+	size -= result;
+	offset &= 31UL;
+	if(offset) {
+		/* We hold the little endian value in tmp, but then the
+		 * shift is illegal. So we could keep a big endian value
+		 * in tmp, like this:
+		 *
+		 * tmp = __swab32(*(p++));
+		 * tmp |= ~0UL >> (32-offset);
+		 *
+		 * but this would decrease preformance, so we change the
+		 * shift:
+		 */
+		tmp = *(p++);
+		tmp |= __swab32(~0UL >> (32-offset));
+		if(size < 32)
+			goto found_first;
+		if(~tmp)
+			goto found_middle;
+		size -= 32;
+		result += 32;
+	}
+	while(size & ~31UL) {
+		if(~(tmp = *(p++)))
+			goto found_middle;
+		result += 32;
+		size -= 32;
+	}
+	if(!size)
+		return result;
+	tmp = *p;
+
+found_first:
+	/* tmp is little endian, so we would have to swab the shift,
+	 * see above. But then we have to swab tmp below for ffz, so
+	 * we might as well do this here.
+	 */
+	return result + ffz(__swab32(tmp) | (~0UL << size));
+found_middle:
+	return result + ffz(__swab32(tmp));
+}
+
+/* Bitmap functions for the minix filesystem.  */
+#define minix_test_and_set_bit(nr,addr) test_and_set_bit(nr,addr)
+#define minix_set_bit(nr,addr) set_bit(nr,addr)
+#define minix_test_and_clear_bit(nr,addr) test_and_clear_bit(nr,addr)
+#define minix_test_bit(nr,addr) test_bit(nr,addr)
+#define minix_find_first_zero_bit(addr,size) find_first_zero_bit(addr,size)
+
+/**
+ * hweightN - returns the hamming weight of a N-bit word
+ * @x: the word to weigh
+ *
+ * The Hamming Weight of a number is the total number of bits set in it.
+ */
+
+#define hweight32(x) generic_hweight32(x)
+#define hweight16(x) generic_hweight16(x)
+#define hweight8(x) generic_hweight8(x)
+
+#endif /* __KERNEL__ */
+
+#endif /* _MICROBLAZE_BITOPS_H */

u-boot/arch/microblaze/include/asm/byteorder.h

@@ -0,0 +1,36 @@
+/*
+ * include/asm-microblaze/byteorder.h -- Endian id and conversion ops
+ *
+ *  Copyright (C) 2003  John Williams <jwilliams@itee.uq.edu.au>
+ *  Copyright (C) 2001  NEC Corporation
+ *  Copyright (C) 2001  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_BYTEORDER_H__
+#define __MICROBLAZE_BYTEORDER_H__
+
+#include <asm/types.h>
+
+#ifdef __GNUC__
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+
+#endif /* __GNUC__ */
+
+#ifdef __MICROBLAZEEL__
+#include <linux/byteorder/little_endian.h>
+#else
+#include <linux/byteorder/big_endian.h>
+#endif
+
+#endif /* __MICROBLAZE_BYTEORDER_H__ */

u-boot/arch/microblaze/include/asm/cache.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __MICROBLAZE_CACHE_H__
+#define __MICROBLAZE_CACHE_H__
+
+/*
+ * The microblaze can have either a 4 or 16 byte cacheline depending on whether
+ * you are using OPB(4) or CacheLink(16).  If the board config has not specified
+ * a cacheline size we assume the larger value of 16 bytes for DMA buffer
+ * alignment.
+ */
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+#define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
+#else
+#define ARCH_DMA_MINALIGN	16
+#endif
+
+#endif /* __MICROBLAZE_CACHE_H__ */

u-boot/arch/microblaze/include/asm/config.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_CONFIG_H_
+#define _ASM_CONFIG_H_
+
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_NEEDS_MANUAL_RELOC
+#endif
+
+#define CONFIG_NR_DRAM_BANKS	1
+
+#endif

u-boot/arch/microblaze/include/asm/errno.h

@@ -0,0 +1 @@
+#include <asm-generic/errno.h>

u-boot/arch/microblaze/include/asm/global_data.h

@@ -0,0 +1,20 @@
+/*
+ * (C) Copyright 2004 Atmark Techno, Inc.
+ *
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef	__ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
+#include <asm-generic/global_data.h>
+
+#define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r31")
+
+#endif /* __ASM_GBL_DATA_H */

u-boot/arch/microblaze/include/asm/gpio.h

@@ -0,0 +1,14 @@
+#ifndef _ASM_MICROBLAZE_GPIO_H_
+#define _ASM_MICROBLAZE_GPIO_H_
+
+#include <asm-generic/gpio.h>
+
+/* Allocation functions */
+extern int gpio_alloc_dual(u32 baseaddr, const char *name, u32 gpio_no0,
+			   u32 gpio_no1);
+extern int gpio_alloc(u32 baseaddr, const char *name, u32 gpio_no);
+
+#define gpio_status()	gpio_info()
+extern void gpio_info(void);
+
+#endif

u-boot/arch/microblaze/include/asm/io.h

@@ -0,0 +1,163 @@
+/*
+ * include/asm-microblaze/io.h -- Misc I/O operations
+ *
+ *  Copyright (C) 2003     John Williams <jwilliams@itee.uq.edu.au>
+ *  Copyright (C) 2001,02  NEC Corporation
+ *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_IO_H__
+#define __MICROBLAZE_IO_H__
+
+#include <asm/types.h>
+
+#define IO_SPACE_LIMIT 0xFFFFFFFF
+
+#define readb(addr) \
+  ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
+#define readw(addr) \
+  ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
+#define readl(addr) \
+	({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
+
+#define writeb(b, addr) \
+  (void)((*(volatile unsigned char *) (addr)) = (b))
+#define writew(b, addr) \
+  (void)((*(volatile unsigned short *) (addr)) = (b))
+#define writel(b, addr) \
+  (void)((*(volatile unsigned int *) (addr)) = (b))
+
+#define memset_io(a,b,c)        memset((void *)(a),(b),(c))
+#define memcpy_fromio(a,b,c)    memcpy((a),(void *)(b),(c))
+#define memcpy_toio(a,b,c)      memcpy((void *)(a),(b),(c))
+
+#define inb(addr)	readb (addr)
+#define inw(addr)	readw (addr)
+#define inl(addr)	readl (addr)
+#define outb(x, addr)	((void) writeb (x, addr))
+#define outw(x, addr)	((void) writew (x, addr))
+#define outl(x, addr)	((void) writel (x, addr))
+
+/* Some #definitions to keep strange Xilinx code happy */
+#define in_8(addr)	readb (addr)
+#define in_be16(addr)	readw (addr)
+#define in_be32(addr)	readl (addr)
+
+#define out_8(addr,x )	outb (x,addr)
+#define out_be16(addr,x )	outw (x,addr)
+#define out_be32(addr,x )	outl (x,addr)
+
+
+#define inb_p(port)		inb((port))
+#define outb_p(val, port)	outb((val), (port))
+#define inw_p(port)		inw((port))
+#define outw_p(val, port)	outw((val), (port))
+#define inl_p(port)		inl((port))
+#define outl_p(val, port)	outl((val), (port))
+
+/* Some defines to keep the MTD flash drivers happy */
+
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+static inline void io_insb (unsigned long port, void *dst, unsigned long count)
+{
+	unsigned char *p = dst;
+	while (count--)
+		*p++ = inb (port);
+}
+static inline void io_insw (unsigned long port, void *dst, unsigned long count)
+{
+	unsigned short *p = dst;
+	while (count--)
+		*p++ = inw (port);
+}
+static inline void io_insl (unsigned long port, void *dst, unsigned long count)
+{
+	unsigned long *p = dst;
+	while (count--)
+		*p++ = inl (port);
+}
+
+static inline void
+io_outsb (unsigned long port, const void *src, unsigned long count)
+{
+	const unsigned char *p = src;
+	while (count--)
+		outb (*p++, port);
+}
+static inline void
+io_outsw (unsigned long port, const void *src, unsigned long count)
+{
+	const unsigned short *p = src;
+	while (count--)
+		outw (*p++, port);
+}
+static inline void
+io_outsl (unsigned long port, const void *src, unsigned long count)
+{
+	const unsigned long *p = src;
+	while (count--)
+		outl (*p++, port);
+}
+
+#define outsb(a,b,l) io_outsb(a,b,l)
+#define outsw(a,b,l) io_outsw(a,b,l)
+#define outsl(a,b,l) io_outsl(a,b,l)
+
+#define insb(a,b,l) io_insb(a,b,l)
+#define insw(a,b,l) io_insw(a,b,l)
+#define insl(a,b,l) io_insl(a,b,l)
+
+
+#define iounmap(addr)				((void)0)
+#define ioremap(physaddr, size)			(physaddr)
+#define ioremap_nocache(physaddr, size)		(physaddr)
+#define ioremap_writethrough(physaddr, size)	(physaddr)
+#define ioremap_fullcache(physaddr, size)	(physaddr)
+
+static inline void sync(void)
+{
+}
+
+/*
+ * Given a physical address and a length, return a virtual address
+ * that can be used to access the memory range with the caching
+ * properties specified by "flags".
+ */
+#define MAP_NOCACHE	(0)
+#define MAP_WRCOMBINE	(0)
+#define MAP_WRBACK	(0)
+#define MAP_WRTHROUGH	(0)
+
+static inline void *
+map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
+{
+	return (void *)paddr;
+}
+
+/*
+ * Take down a mapping set up by map_physmem().
+ */
+static inline void unmap_physmem(void *vaddr, unsigned long flags)
+{
+
+}
+
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+	return (phys_addr_t)(vaddr);
+}
+
+#endif /* __MICROBLAZE_IO_H__ */

u-boot/arch/microblaze/include/asm/microblaze_intc.h

@@ -0,0 +1,36 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.cz>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+typedef volatile struct microblaze_intc_t {
+	int isr; /* interrupt status register */
+	int ipr; /* interrupt pending register */
+	int ier; /* interrupt enable register */
+	int iar; /* interrupt acknowledge register */
+	int sie; /* set interrupt enable bits */
+	int cie; /* clear interrupt enable bits */
+	int ivr; /* interrupt vector register */
+	int mer; /* master enable register */
+} microblaze_intc_t;
+
+struct irq_action {
+	interrupt_handler_t *handler; /* pointer to interrupt rutine */
+	void *arg;
+	int count; /* number of interrupt */
+};
+
+/**
+ * Register and unregister interrupt handler rutines
+ *
+ * @param irq	IRQ number
+ * @param hdlr	Interrupt handler rutine
+ * @param arg	Pointer to argument which is passed to int. handler rutine
+ * @return	0 if registration pass, 1 if unregistration pass,
+ *		or an error code < 0 otherwise
+ */
+int install_interrupt_handler(int irq, interrupt_handler_t *hdlr,
+				       void *arg);

u-boot/arch/microblaze/include/asm/microblaze_timer.h

@@ -0,0 +1,27 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.cz>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#define TIMER_ENABLE_ALL    0x400 /* ENALL */
+#define TIMER_PWM           0x200 /* PWMA0 */
+#define TIMER_INTERRUPT     0x100 /* T0INT */
+#define TIMER_ENABLE        0x080 /* ENT0 */
+#define TIMER_ENABLE_INTR   0x040 /* ENIT0 */
+#define TIMER_RESET         0x020 /* LOAD0 */
+#define TIMER_RELOAD        0x010 /* ARHT0 */
+#define TIMER_EXT_CAPTURE   0x008 /* CAPT0 */
+#define TIMER_EXT_COMPARE   0x004 /* GENT0 */
+#define TIMER_DOWN_COUNT    0x002 /* UDT0 */
+#define TIMER_CAPTURE_MODE  0x001 /* MDT0 */
+
+typedef volatile struct microblaze_timer_t {
+	int control; /* control/statuc register TCSR */
+	int loadreg; /* load register TLR */
+	int counter; /* timer/counter register */
+} microblaze_timer_t;
+
+int timer_init(void);

u-boot/arch/microblaze/include/asm/posix_types.h

@@ -0,0 +1,77 @@
+/*
+ * include/asm-microblaze/posix_types.h -- Kernel versions of standard types
+ *
+ *  Copyright (C) 2003       John Williams <jwilliams@itee.uq.edu.au>
+ *  Copyright (C) 2001,2002  NEC Corporation
+ *  Copyright (C) 2001,2002  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_POSIX_TYPES_H__
+#define __MICROBLAZE_POSIX_TYPES_H__
+
+typedef unsigned int	__kernel_dev_t;
+typedef unsigned long	__kernel_ino_t;
+typedef unsigned long long __kernel_ino64_t;
+typedef unsigned int	__kernel_mode_t;
+typedef unsigned int	__kernel_nlink_t;
+typedef long		__kernel_off_t;
+typedef long long	__kernel_loff_t;
+typedef int		__kernel_pid_t;
+typedef unsigned short	__kernel_ipc_pid_t;
+typedef unsigned int	__kernel_uid_t;
+typedef unsigned int	__kernel_gid_t;
+#ifdef __GNUC__
+typedef __SIZE_TYPE__  __kernel_size_t;
+#else
+typedef unsigned int	__kernel_size_t;
+#endif
+typedef int		__kernel_ssize_t;
+typedef int		__kernel_ptrdiff_t;
+typedef long		__kernel_time_t;
+typedef long		__kernel_suseconds_t;
+typedef long		__kernel_clock_t;
+typedef int		__kernel_daddr_t;
+typedef char *		__kernel_caddr_t;
+typedef unsigned short	__kernel_uid16_t;
+typedef unsigned short	__kernel_gid16_t;
+typedef unsigned int	__kernel_uid32_t;
+typedef unsigned int	__kernel_gid32_t;
+
+typedef unsigned short	__kernel_old_uid_t;
+typedef unsigned short	__kernel_old_gid_t;
+
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+	int	val[2];
+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+	int	__val[2];
+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+} __kernel_fsid_t;
+
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+
+#undef	__FD_SET
+#define __FD_SET(fd, fd_set) \
+  __set_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
+#undef __FD_CLR
+#define __FD_CLR(fd, fd_set) \
+  __clear_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
+#undef	__FD_ISSET
+#define __FD_ISSET(fd, fd_set) \
+  __test_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
+#undef	__FD_ZERO
+#define __FD_ZERO(fd_set) \
+  memset (fd_set, 0, sizeof (*(fd_set *)fd_set))
+
+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+
+#endif /* __MICROBLAZE_POSIX_TYPES_H__ */

u-boot/arch/microblaze/include/asm/processor.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2011 Michal Simek <monstr@monstr.eu>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_MICROBLAZE_PROCESSOR_H
+#define __ASM_MICROBLAZE_PROCESSOR_H
+
+/* References to section boundaries */
+
+extern char __end[];
+extern char __text_start[];
+
+/* Microblaze board initialization function */
+void board_init(void);
+
+/* Watchdog functions */
+extern void hw_watchdog_disable(void);
+
+#endif /* __ASM_MICROBLAZE_PROCESSOR_H */

u-boot/arch/microblaze/include/asm/ptrace.h

@@ -0,0 +1,116 @@
+/*
+ * include/asm-microblaze/ptrace.h -- Access to CPU registers
+ *
+ *  Copyright (C) 2003       John Williams <jwilliams@itee.uq.edu.au>
+ *  Copyright (C) 2001,2002  NEC Corporation
+ *  Copyright (C) 2001,2002  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_PTRACE_H__
+#define __MICROBLAZE_PTRACE_H__
+
+
+/* Microblaze general purpose registers with special meanings.  */
+#define GPR_ZERO	0	/* constant zero */
+#define GPR_ASM		18	/* reserved for assembler */
+#define GPR_SP		1	/* stack pointer */
+#define GPR_GP		2	/* global data pointer */
+#define GPR_EP		30	/* `element pointer' */
+#define GPR_LP		15	/* link pointer (current return address) */
+
+/* These aren't official names, but they make some code more descriptive.  */
+#define GPR_ARG0	5
+#define GPR_ARG1	6
+#define GPR_ARG2	7
+#define GPR_ARG3	8
+#define GPR_ARG4	9
+#define GPR_ARG5	10
+#define GPR_RVAL0	3
+#define GPR_RVAL1	4
+#define GPR_RVAL	GPR_RVAL0
+
+#define NUM_GPRS	32
+
+/* `system' registers.  */
+/* Note these are old v850 values, microblaze has many fewer */
+#define SR_EIPC		0
+#define SR_EIPSW	1
+#define SR_FEPC		2
+#define SR_FEPSW	3
+#define SR_ECR		4
+#define SR_PSW		5
+#define SR_CTPC		16
+#define SR_CTPSW	17
+#define SR_DBPC		18
+#define SR_DBPSW	19
+#define SR_CTBP		20
+#define SR_DIR		21
+#define SR_ASID		23
+
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned long microblaze_reg_t;
+
+/* How processor state is stored on the stack during a syscall/signal.
+   If you change this structure, change the associated assembly-language
+   macros below too (PT_*)!  */
+struct pt_regs
+{
+	/* General purpose registers.  */
+	microblaze_reg_t gpr[NUM_GPRS];
+
+	microblaze_reg_t pc;		/* program counter */
+	microblaze_reg_t psw;		/* program status word */
+
+	microblaze_reg_t kernel_mode;	/* 1 if in `kernel mode', 0 if user mode */
+	microblaze_reg_t single_step;	/* 1 if in single step mode */
+};
+
+
+#define instruction_pointer(regs)	((regs)->pc)
+#define user_mode(regs)			(!(regs)->kernel_mode)
+
+/* When a struct pt_regs is used to save user state for a system call in
+   the kernel, the system call is stored in the space for R0 (since it's
+   never used otherwise, R0 being a constant 0).  Non-system-calls
+   simply store 0 there.  */
+#define PT_REGS_SYSCALL(regs)		(regs)->gpr[0]
+#define PT_REGS_SET_SYSCALL(regs, val)	((regs)->gpr[0] = (val))
+
+#endif /* !__ASSEMBLY__ */
+
+
+/* The number of bytes used to store each register.  */
+#define _PT_REG_SIZE	4
+
+/* Offset of a general purpose register in a stuct pt_regs.  */
+#define PT_GPR(num)	((num) * _PT_REG_SIZE)
+
+/* Offsets of various special registers & fields in a struct pt_regs.  */
+#define NUM_SPECIAL	4
+#define PT_PC		((NUM_GPRS + 0) * _PT_REG_SIZE)
+#define PT_PSW		((NUM_GPRS + 1) * _PT_REG_SIZE)
+#define PT_KERNEL_MODE	((NUM_GPRS + 2) * _PT_REG_SIZE)
+#define PT_SINGLESTEP	((NUM_GPRS + 3) * _PT_REG_SIZE)
+
+#define PT_SYSCALL	PT_GPR(0)
+
+/* Size of struct pt_regs, including alignment.  */
+#define PT_SIZE		((NUM_GPRS + NUM_SPECIAL) * _PT_REG_SIZE)
+
+/* These are `magic' values for PTRACE_PEEKUSR that return info about where
+   a process is located in memory.  */
+#define PT_TEXT_ADDR    (PT_SIZE + 1)
+#define PT_TEXT_LEN     (PT_SIZE + 2)
+#define PT_DATA_ADDR    (PT_SIZE + 3)
+#define PT_DATA_LEN     (PT_SIZE + 4)
+
+#endif /* __MICROBLAZE_PTRACE_H__ */

u-boot/arch/microblaze/include/asm/sections.h

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_MICROBLAZE_SECTIONS_H
+#define __ASM_MICROBLAZE_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif

u-boot/arch/microblaze/include/asm/spl.h

@@ -0,0 +1,16 @@
+/*
+ * (C) Copyright 2013 - 2014 Xilinx, Inc
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_MICROBLAZE_SPL_H_
+#define _ASM_MICROBLAZE_SPL_H_
+
+#define BOOT_DEVICE_RAM		1
+#define BOOT_DEVICE_NOR		2
+#define BOOT_DEVICE_SPI		3
+
+#endif

u-boot/arch/microblaze/include/asm/string.h

@@ -0,0 +1,29 @@
+/*
+ * include/asm-microblaze/string.h -- Architecture specific string routines
+ *
+ *  Copyright (C) 2003       John Williams <jwilliams@itee.uq.edu.au>
+ *  Copyright (C) 2001,2002  NEC Corporation
+ *  Copyright (C) 2001,2002  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_STRING_H__
+#define __MICROBLAZE_STRING_H__
+
+#if 0
+#define __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMSET
+#define __HAVE_ARCH_MEMMOVE
+
+extern void *memcpy (void *, const void *, __kernel_size_t);
+extern void *memset (void *, int, __kernel_size_t);
+extern void *memmove (void *, const void *, __kernel_size_t);
+#endif
+
+#endif /* __MICROBLAZE_STRING_H__ */

u-boot/arch/microblaze/include/asm/system.h

@@ -0,0 +1,161 @@
+/*
+ * include/asm-microblaze/system.h -- Low-level interrupt/thread ops
+ *
+ *  Copyright (C) 2003	John Williams (jwilliams@itee.uq.edu.au)
+ *			based upon microblaze version
+ *  Copyright (C) 2001	NEC Corporation
+ *  Copyright (C) 2001	Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_SYSTEM_H__
+#define __MICROBLAZE_SYSTEM_H__
+
+#if 0
+#include <linux/linkage.h>
+#endif
+#include <asm/ptrace.h>
+
+#define prepare_to_switch()	do { } while (0)
+
+/*
+ * switch_to(n) should switch tasks to task ptr, first checking that
+ * ptr isn't the current task, in which case it does nothing.
+ */
+struct thread_struct;
+extern void *switch_thread (struct thread_struct *last,
+			    struct thread_struct *next);
+#define switch_to(prev,next,last) do {					\
+	if (prev != next) {						\
+		(last) = switch_thread (&prev->thread, &next->thread);	\
+	}								\
+} while (0)
+
+
+/* Enable/disable interrupts.  */
+#define __sti() \
+{								\
+	register unsigned tmp;					\
+	__asm__ __volatile__ ("					\
+			mfs	%0, rmsr;			\
+			ori	%0, %0, 2;			\
+			mts	rmsr, %0"			\
+			: "=r" (tmp)				\
+			:					\
+			: "memory");				\
+}
+
+#define __cli() \
+{								\
+	register unsigned tmp;					\
+	__asm__ __volatile__ ("					\
+			mfs	%0, rmsr;			\
+			andi	%0, %0, ~2;			\
+			mts	rmsr, %0"			\
+			: "=r" (tmp)				\
+			:					\
+			: "memory");				\
+}
+
+#define __save_flags(flags) \
+	__asm__ __volatile__ ("mfs	%0, rmsr" : "=r" (flags))
+#define __restore_flags(flags) \
+	__asm__ __volatile__ ("mts	rmsr, %0" :: "r" (flags))
+
+#define __save_flags_cli(flags) \
+{								\
+	register unsigned tmp;					\
+	__asm__ __volatile__ ("					\
+			mfs	%0, rmsr;			\
+			andi	%1, %0, ~2;			\
+			mts	rmsr, %1;"			\
+			: "=r" (flags), "=r" (tmp)		\
+			:					\
+			: "memory");				\
+}
+
+#define __save_flags_sti(flags)					\
+{								\
+	register unsigned tmp;					\
+	__asm__ __volatile__ ("					\
+			mfs	%0, rmsr;			\
+			ori	%1, %0, 2;			\
+			mts	rmsr, %1;"			\
+			: "=r" (flags) ,"=r" (tmp)		\
+			:					\
+			: "memory");				\
+}
+
+/* For spinlocks etc */
+#define local_irq_save(flags)	__save_flags_cli (flags)
+#define local_irq_set(flags)	__save_flags_sti (flags)
+#define local_irq_restore(flags) __restore_flags (flags)
+#define local_irq_disable()	__cli ()
+#define local_irq_enable()	__sti ()
+
+#define cli()			__cli ()
+#define sti()			__sti ()
+#define save_flags(flags)	__save_flags (flags)
+#define restore_flags(flags)	__restore_flags (flags)
+#define save_flags_cli(flags)	__save_flags_cli (flags)
+
+/*
+ * Force strict CPU ordering.
+ * Not really required on microblaze...
+ */
+#define nop()			__asm__ __volatile__ ("nop")
+#define mb()			__asm__ __volatile__ ("nop" ::: "memory")
+#define rmb()			mb ()
+#define wmb()			mb ()
+#define set_mb(var, value)	do { var = value; mb(); } while (0)
+#define set_wmb(var, value)	do { var = value; wmb (); } while (0)
+
+#ifdef CONFIG_SMP
+#define smp_mb()	mb ()
+#define smp_rmb()	rmb ()
+#define smp_wmb()	wmb ()
+#else
+#define smp_mb()	barrier ()
+#define smp_rmb()	barrier ()
+#define smp_wmb()	barrier ()
+#endif
+
+#define xchg(ptr, with) \
+  ((__typeof__ (*(ptr)))__xchg ((unsigned long)(with), (ptr), sizeof (*(ptr))))
+#define tas(ptr) (xchg ((ptr), 1))
+
+static inline unsigned long __xchg(unsigned long with,
+				    __volatile__ void *ptr, int size)
+{
+	unsigned long tmp, flags;
+
+	save_flags_cli (flags);
+
+	switch (size) {
+	case 1:
+		tmp = *(unsigned char *)ptr;
+		*(unsigned char *)ptr = with;
+		break;
+	case 2:
+		tmp = *(unsigned short *)ptr;
+		*(unsigned short *)ptr = with;
+		break;
+	case 4:
+		tmp = *(unsigned long *)ptr;
+		*(unsigned long *)ptr = with;
+		break;
+	}
+
+	restore_flags (flags);
+
+	return tmp;
+}
+
+#endif /* __MICROBLAZE_SYSTEM_H__ */

u-boot/arch/microblaze/include/asm/types.h

@@ -0,0 +1,60 @@
+#ifndef _ASM_TYPES_H
+#define _ASM_TYPES_H
+
+/*
+ * This file is never included by application software unless
+ * explicitly requested (e.g., via linux/types.h) in which case the
+ * application is Linux specific so (user-) name space pollution is
+ * not a major issue.  However, for interoperability, libraries still
+ * need to be careful to avoid a name clashes.
+ */
+
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#if defined(__GNUC__)
+__extension__ typedef __signed__ long long __s64;
+__extension__ typedef unsigned long long __u64;
+#endif
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
+
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef signed long long s64;
+typedef unsigned long long u64;
+
+#define BITS_PER_LONG 32
+
+/* Dma addresses are 32-bits wide.  */
+
+typedef u32 dma_addr_t;
+
+typedef unsigned long phys_addr_t;
+typedef unsigned long phys_size_t;
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_TYPES_H */

u-boot/arch/microblaze/include/asm/u-boot.h

@@ -0,0 +1,24 @@
+/*
+ * (C) Copyright 2004 Atmark Techno, Inc.
+ *
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ ********************************************************************
+ * NOTE: This header file defines an interface to U-Boot. Including
+ * this (unmodified) header file in another file is considered normal
+ * use of U-Boot, and does *not* fall under the heading of "derived
+ * work".
+ ********************************************************************
+ */
+
+#ifndef _U_BOOT_H_
+#define _U_BOOT_H_
+
+#include <asm-generic/u-boot.h>
+
+/* For image.h:image_check_target_arch() */
+#define IH_ARCH_DEFAULT IH_ARCH_MICROBLAZE
+
+#endif	/* _U_BOOT_H_ */

u-boot/arch/microblaze/include/asm/unaligned.h

@@ -0,0 +1 @@
+#include <asm-generic/unaligned.h>