[U-Boot] [PATCH] part2 of arm64. This patch provide u-boot with arm64 support. Currently, it works on Foundation Model for armv8 or Fast Model for armv8.
fenghua at phytium.com.cn
fenghua at phytium.com.cn
Sun Aug 11 18:05:38 CEST 2013
From: fenghua <fenghua at ligen-virtual-machine.(none)>
This patch provide u-boot with arm64 support. Currently, it works
on Foundation Model for armv8 or Fast Model for armv8.
Signed-off-by: fenghua <fenghua at ligen-virtual-machine.(none)>
---
arch/arm64/cpu/armv8/Makefile | 51 +++++++
arch/arm64/cpu/armv8/cache.S | 115 +++++++++++++++
arch/arm64/cpu/armv8/config.mk | 29 ++++
arch/arm64/cpu/armv8/cpu.c | 105 ++++++++++++++
arch/arm64/cpu/armv8/exceptions.S | 210 +++++++++++++++++++++++++++
arch/arm64/cpu/armv8/start.S | 198 ++++++++++++++++++++++++++
arch/arm64/cpu/armv8/tlb.S | 38 +++++
arch/arm64/cpu/u-boot.lds | 73 ++++++++++
arch/arm64/dts/aemv8a.dtsi | 234 +++++++++++++++++++++++++++++++
arch/arm64/include/asm/arch-armv8/mmu.h | 117 ++++++++++++++++
arch/arm64/include/asm/atomic.h | 115 +++++++++++++++
arch/arm64/include/asm/bitops.h | 153 ++++++++++++++++++++
arch/arm64/include/asm/byteorder.h | 31 ++++
arch/arm64/include/asm/cache.h | 37 +++++
arch/arm64/include/asm/config.h | 39 ++++++
arch/arm64/include/asm/errno.h | 1 +
arch/arm64/include/asm/global_data.h | 38 +++++
arch/arm64/include/asm/gpio.h | 1 +
arch/arm64/include/asm/io.h | 193 +++++++++++++++++++++++++
arch/arm64/include/asm/linkage.h | 49 +++++++
arch/arm64/include/asm/posix_types.h | 61 ++++++++
arch/arm64/include/asm/processor.h | 59 ++++++++
arch/arm64/include/asm/ptrace.h | 58 ++++++++
arch/arm64/include/asm/sections.h | 27 ++++
arch/arm64/include/asm/string.h | 49 +++++++
arch/arm64/include/asm/system.h | 113 +++++++++++++++
arch/arm64/include/asm/types.h | 67 +++++++++
arch/arm64/include/asm/u-boot.h | 38 +++++
arch/arm64/include/asm/unaligned.h | 28 ++++
arch/arm64/include/asm/utils.h | 56 ++++++++
30 files changed, 2383 insertions(+)
create mode 100644 arch/arm64/cpu/armv8/Makefile
create mode 100644 arch/arm64/cpu/armv8/cache.S
create mode 100644 arch/arm64/cpu/armv8/config.mk
create mode 100644 arch/arm64/cpu/armv8/cpu.c
create mode 100644 arch/arm64/cpu/armv8/exceptions.S
create mode 100644 arch/arm64/cpu/armv8/start.S
create mode 100644 arch/arm64/cpu/armv8/tlb.S
create mode 100644 arch/arm64/cpu/u-boot.lds
create mode 100644 arch/arm64/dts/aemv8a.dtsi
create mode 100644 arch/arm64/include/asm/arch-armv8/mmu.h
create mode 100644 arch/arm64/include/asm/atomic.h
create mode 100644 arch/arm64/include/asm/bitops.h
create mode 100644 arch/arm64/include/asm/byteorder.h
create mode 100644 arch/arm64/include/asm/cache.h
create mode 100644 arch/arm64/include/asm/config.h
create mode 100644 arch/arm64/include/asm/errno.h
create mode 100644 arch/arm64/include/asm/global_data.h
create mode 100644 arch/arm64/include/asm/gpio.h
create mode 100644 arch/arm64/include/asm/io.h
create mode 100644 arch/arm64/include/asm/linkage.h
create mode 100644 arch/arm64/include/asm/posix_types.h
create mode 100644 arch/arm64/include/asm/processor.h
create mode 100644 arch/arm64/include/asm/ptrace.h
create mode 100644 arch/arm64/include/asm/sections.h
create mode 100644 arch/arm64/include/asm/string.h
create mode 100644 arch/arm64/include/asm/system.h
create mode 100644 arch/arm64/include/asm/types.h
create mode 100644 arch/arm64/include/asm/u-boot.h
create mode 100644 arch/arm64/include/asm/unaligned.h
create mode 100644 arch/arm64/include/asm/utils.h
diff --git a/arch/arm64/cpu/armv8/Makefile b/arch/arm64/cpu/armv8/Makefile
new file mode 100644
index 0000000..1a8cdd7
--- /dev/null
+++ b/arch/arm64/cpu/armv8/Makefile
@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2013 FengHua <fenghua at phytium.com.cn>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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 Foundatio; 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., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(CPU).o
+
+START := start.o
+
+COBJS += cpu.o
+
+SOBJS += exceptions.o
+SOBJS += cache.o
+SOBJS += tlb.o
+
+SRCS := $(START:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm64/cpu/armv8/cache.S b/arch/arm64/cpu/armv8/cache.S
new file mode 100644
index 0000000..49eed1a
--- /dev/null
+++ b/arch/arm64/cpu/armv8/cache.S
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <version.h>
+#include <linux/linkage.h>
+
+/*
+ * void __flush_dcache_all(void)
+ *
+ * This "function" clean and invalidate all data cache by SET/WAY.
+ */
+ENTRY(__flush_dcache_all)
+ dsb sy // ensure ordering with previous memory accesses
+ mrs x0, clidr_el1 // read clidr
+ and x3, x0, #0x7000000 // extract loc from clidr
+ lsr x3, x3, #23 // left align loc bit field
+ cbz x3, finished // if loc is 0, then no need to clean
+ mov x10, #0 // start clean at cache level 0
+loop1:
+ add x2, x10, x10, lsr #1 // work out 3x current cache level
+ lsr x1, x0, x2 // extract cache type bits from clidr
+ and x1, x1, #7 // mask of the bits for current cache only
+ cmp x1, #2 // see what cache we have at this level
+ b.lt skip // skip if no cache, or just i-cache
+ msr csselr_el1, x10 // select current cache level in csselr
+ isb // isb to sych the new cssr&csidr
+ mrs x1, ccsidr_el1 // read the new ccsidr
+ and x2, x1, #7 // extract the length of the cache lines
+ add x2, x2, #4 // add 4 (line length offset)
+ mov x4, #0x3ff
+ and x4, x4, x1, lsr #3 // find maximum number on the way size
+ clz w5, w4 // find bit position of way size increment
+ mov x7, #0x7fff
+ and x7, x7, x1, lsr #13 // extract max number of the index size
+loop2:
+ mov x9, x4 // create working copy of max way size
+loop3:
+ lsl x6, x9, x5
+ orr x11, x10, x6 // factor way and cache number into x11
+ lsl x6, x7, x2
+ orr x11, x11, x6 // factor index number into x11
+ dc cisw, x11 // clean & invalidate by set/way
+ subs x9, x9, #1 // decrement the way
+ b.ge loop3
+ subs x7, x7, #1 // decrement the index
+ b.ge loop2
+skip:
+ add x10, x10, #2 // increment cache number
+ cmp x3, x10
+ b.gt loop1
+finished:
+ mov x10, #0 // swith back to cache level 0
+ msr csselr_el1, x10 // select current cache level in csselr
+ dsb sy
+ isb
+ ret
+ENDPROC(__flush_dcache_all)
+
+/*
+ * void __flush_dcache_range(start, end)
+ *
+ * clean & invalidate data cache in the range
+ *
+ * -x0: start address
+ * -x1: end address
+ */
+ENTRY(__flush_dcache_range)
+ mrs x3, ctr_el0 // read CTR
+ lsr x3, x3, #16
+ and x3, x3, #0xf // cache line size encoding
+ mov x2, #4 // bytes per word
+ lsl x2, x2, x3 // actual cache line size
+
+ /* x2 = minimal cache line size in cache system */
+ sub x3, x2, #1
+ bic x0, x0, x3
+1: dc civac, x0 // clean & invalidate D line / unified line
+ add x0, x0, x2
+ cmp x0, x1
+ b.lo 1b
+ dsb sy
+ ret
+ENDPROC(__flush_dcache_range)
+
+/*
+ * void __invalidate_icache_all(void)
+ *
+ * This "function" invalidate all tlb entries.
+ */
+ENTRY(__invalidate_icache_all)
+ ic ialluis
+ isb sy
+ ret
+ENDPROC(__invalidate_icache_all)
diff --git a/arch/arm64/cpu/armv8/config.mk b/arch/arm64/cpu/armv8/config.mk
new file mode 100644
index 0000000..113075c
--- /dev/null
+++ b/arch/arm64/cpu/armv8/config.mk
@@ -0,0 +1,29 @@
+#
+# Copyright (c) 2013 FengHua <fenghua at phytium.com.cn>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+PLATFORM_RELFLAGS += -fno-common -ffixed-x18
+
+PF_CPPFLAGS_ARMV8 := $(call cc-option, -march=armv8-a)
+PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARMV8)
+
+# SEE README.arm-unaligned-accesses
+PF_NO_UNALIGNED := $(call cc-option, -mstrict-align)
+PLATFORM_NO_UNALIGNED := $(PF_NO_UNALIGNED)
diff --git a/arch/arm64/cpu/armv8/cpu.c b/arch/arm64/cpu/armv8/cpu.c
new file mode 100644
index 0000000..a6bea74
--- /dev/null
+++ b/arch/arm64/cpu/armv8/cpu.c
@@ -0,0 +1,105 @@
+/*
+ * (C) Copyright 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * Based on arch/arm/armv7/cpu.c by
+ * Marius Groeger <mgroeger at sysgo.de> and
+ * Gary Jennejohn <garyj at denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/cache.h>
+#include <linux/compiler.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Default implementation of arch_cpu_init()
+ * Real implementation should be in platform code
+ */
+int __arch_cpu_init(void)
+{
+ return 0;
+}
+int arch_cpu_init(void)
+ __attribute__((weak, alias("__arch_cpu_init")));
+
+/*
+ * Default implementation of dram_init()
+ * Real implementation should be in platform code
+ */
+int __dram_init(void)
+{
+ int i;
+
+ gd->ram_size = PHYS_SDRAM_1_SIZE;
+
+ gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+ puts("RAM Configuration:\n");
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ printf(" Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
+ print_size(gd->bd->bi_dram[i].size, "\n");
+ }
+
+ return 0;
+}
+int dram_init(void)
+ __attribute__((weak, alias("__dram_init")));
+
+
+int cleanup_before_linux(void)
+{
+ /*
+ * this function is called just before we call linux
+ * it prepares the processor for linux
+ */
+ disable_interrupts();
+
+ /*
+ * Turn off I-cache and invalidate it
+ */
+ icache_disable();
+ invalidate_icache_all();
+
+ /*
+ * turn off D-cache
+ * dcache_disable() in turn flushes the d-cache and disables MMU
+ */
+ dcache_disable();
+ outer_cache_disable();
+
+ /*
+ * After D-cache is flushed and before it is disabled there may
+ * be some new valid entries brought into the cache. We are sure
+ * that these lines are not dirty and will not affect our execution.
+ * (because unwinding the call-stack and setting a bit in CP15 SCTRL
+ * is all we did during this. We have not pushed anything on to the
+ * stack. Neither have we affected any static data)
+ * So just invalidate the entire d-cache again to avoid coherency
+ * problems for kernel
+ */
+ invalidate_dcache_all();
+
+ return 0;
+}
diff --git a/arch/arm64/cpu/armv8/exceptions.S b/arch/arm64/cpu/armv8/exceptions.S
new file mode 100644
index 0000000..376df49
--- /dev/null
+++ b/arch/arm64/cpu/armv8/exceptions.S
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2013 FengHua <fenghua at phytium.com.cn>
+ *
+ * Based on entry.S of linux kernel by
+ * Catalin Marinas <catalin.marinas at arm.com> and
+ * Will Deacon <will.deacon at arm.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <version.h>
+#include <asm/ptrace.h>
+#include <linux/linkage.h>
+
+/*
+ * Bad Abort numbers
+ */
+#define BAD_SYNC 0
+#define BAD_IRQ 1
+#define BAD_FIQ 2
+#define BAD_ERROR 3
+
+.macro kernel_entry, el, regsize = 64
+ sub sp, sp, #S_FRAME_SIZE - S_LR // room for LR, SP, SPSR, ELR
+ .if \regsize == 32
+ mov w0, w0 // zero upper 32 bits of x0
+ .endif
+ push x28, x29
+ push x26, x27
+ push x24, x25
+ push x22, x23
+ push x20, x21
+ push x18, x19
+ push x16, x17
+ push x14, x15
+ push x12, x13
+ push x10, x11
+ push x8, x9
+ push x6, x7
+ push x4, x5
+ push x2, x3
+ push x0, x1
+ .if \el == 1
+ mrs x21, sp_el1
+ .else
+ add x21, sp, #S_FRAME_SIZE
+ .endif
+ mrs x22, elr_el2
+ mrs x23, spsr_el2
+ stp lr, x21, [sp, #S_LR]
+ stp x22, x23, [sp, #S_PC]
+
+ /*
+ * Set syscallno to -1 by default (overridden later if real syscall).
+ */
+ .if \el == 1
+ mvn x21, xzr
+ str x21, [sp, #S_SYSCALLNO]
+ .endif
+
+ /*
+ * Registers that may be useful after this macro is invoked:
+ *
+ * x21 - aborted SP
+ * x22 - aborted PC
+ * x23 - aborted PSTATE
+ */
+.endm
+
+.macro kernel_exit, el, ret = 0
+ ldp x21, x22, [sp, #S_PC] // load ELR, SPSR
+ .if \el == 1
+ ldr x23, [sp, #S_SP] // load return stack pointer
+ .endif
+ .if \ret
+ ldr x1, [sp, #S_X1] // preserve x0 (syscall return)
+ add sp, sp, S_X2
+ .else
+ pop x0, x1
+ .endif
+ pop x2, x3 // load the rest of the registers
+ pop x4, x5
+ pop x6, x7
+ pop x8, x9
+ msr elr_el1, x21 // set up the return data
+ msr spsr_el1, x22
+ .if \el == 1
+ msr sp_el1, x23
+ .endif
+ pop x10, x11
+ pop x12, x13
+ pop x14, x15
+ pop x16, x17
+ pop x18, x19
+ pop x20, x21
+ pop x22, x23
+ pop x24, x25
+ pop x26, x27
+ pop x28, x29
+ ldr lr, [sp], #S_FRAME_SIZE - S_LR // load LR and restore SP
+ eret // return to kernel
+.endm
+
+/*
+ * Exception vectors.
+ */
+ .align 11
+ENTRY(vectors)
+ ventry el2_sync_invalid // Synchronous EL2t
+ ventry el2_irq_invalid // IRQ EL2t
+ ventry el2_fiq_invalid // FIQ EL2t
+ ventry el2_error_invalid // Error EL2t
+
+ ventry el2_sync // Synchronous EL2h
+ ventry el2_irq_invalid // IRQ EL2h
+ ventry el2_fiq_invalid // FIQ EL2h
+ ventry el2_error // Error EL2h
+
+ ventry el1_sync_invalid // Synchronous 64-bit EL1
+ ventry el1_irq_invalid // IRQ 64-bit EL1
+ ventry el1_fiq_invalid // FIQ 64-bit EL1
+ ventry el1_error_invalid // Error 64-bit EL1
+
+ ventry el1_sync_invalid // Synchronous 32-bit EL1
+ ventry el1_irq_invalid // IRQ 32-bit EL1
+ ventry el1_fiq_invalid // FIQ 32-bit EL1
+ ventry el1_error_invalid // Error 32-bit EL1
+END(vectors)
+
+
+/*
+ * Invalid mode handlers
+ */
+.macro inv_entry, el, reason, regsize = 64
+ kernel_entry el, \regsize
+ mov x0, sp
+ mov x1, #\reason
+ mrs x2, esr_el2
+ b bad_mode
+.endm
+
+/*
+ * el1 invalid entry
+ */
+el1_sync_invalid:
+ inv_entry 1, BAD_SYNC
+ENDPROC(el1_sync_invalid)
+
+el1_irq_invalid:
+ inv_entry 1, BAD_IRQ
+ENDPROC(el1_irq_invalid)
+
+el1_fiq_invalid:
+ inv_entry 1, BAD_FIQ
+ENDPROC(el1_fiq_invalid)
+
+el1_error_invalid:
+ inv_entry 1, BAD_ERROR
+ENDPROC(el1_error_invalid)
+
+/*
+ * el2 invalid entry
+ */
+el2_sync_invalid:
+ inv_entry 2, BAD_SYNC
+ENDPROC(el2_sync_invalid)
+
+el2_irq_invalid:
+ inv_entry 2, BAD_IRQ
+ENDPROC(el2_irq_invalid)
+
+el2_fiq_invalid:
+ inv_entry 2, BAD_FIQ
+ENDPROC(el2_fiq_invalid)
+
+el2_error_invalid:
+ inv_entry 2, BAD_ERROR
+ENDPROC(el2_error_invalid)
+
+
+/*
+ * EL2 mode handlers.
+ */
+ .align 6
+el2_sync:
+ inv_entry 2, BAD_SYNC
+ENDPROC(el2_sync)
+
+ .align 6
+el2_error:
+ inv_entry 2, BAD_ERROR
+ENDPROC(el2_error)
diff --git a/arch/arm64/cpu/armv8/start.S b/arch/arm64/cpu/armv8/start.S
new file mode 100644
index 0000000..4a08449
--- /dev/null
+++ b/arch/arm64/cpu/armv8/start.S
@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <version.h>
+#include <linux/linkage.h>
+#include <asm/arch/mmu.h>
+
+/*************************************************************************
+ *
+ * Startup Code (reset vector)
+ *
+ *************************************************************************/
+
+.globl _start
+_start:
+ b reset
+
+ .align 3
+
+.globl _TEXT_BASE
+_TEXT_BASE:
+ .quad CONFIG_SYS_TEXT_BASE
+
+.globl _end_ofs
+_end_ofs:
+ .quad _end - _start
+
+.globl _bss_start_ofs
+_bss_start_ofs:
+ .quad __bss_start - _start
+
+.globl _bss_end_ofs
+_bss_end_ofs:
+ .quad __bss_end - _start
+
+reset:
+ /*
+ * EL3 initialisation
+ */
+ mrs x0, CurrentEL
+ cmp x0, #0xc // EL3?
+ b.ne reset_nonsecure // skip EL3 initialisation
+
+ mov x0, #0x30 // RES1
+ orr x0, x0, #(1 << 0) // Non-secure EL1
+ orr x0, x0, #(1 << 8) // HVC enable
+ orr x0, x0, #(1 << 10) // 64-bit EL2
+ msr scr_el3, x0
+
+ msr cptr_el3, xzr // Disable copro. traps to EL3
+
+ /* Counter frequency initialisation */
+ ldr x0, =CONFIG_SYS_CNTFRQ
+ msr cntfrq_el0, x0
+
+ /* GIC initialisation */
+ mrs x0, mpidr_el1
+ tst x0, #15
+ b.ne 1f // secondary CPU
+
+ ldr x1, =GIC_DIST_BASE // GICD_CTLR
+ mov w0, #3 // EnableGrp0 | EnableGrp1
+ str w0, [x1]
+
+1: ldr x1, =GIC_DIST_BASE + 0x80 // GICD_IGROUPR
+ mov w0, #~0 // Grp1 interrupts
+ str w0, [x1], #4
+ b.ne 2f // Only local interrupts for secondary CPUs
+ str w0, [x1], #4
+ str w0, [x1], #4
+
+2: ldr x1, =GIC_CPU_BASE // GICC_CTLR
+ ldr w0, [x1]
+ mov w0, #3 // EnableGrp0 | EnableGrp1
+ str w0, [x1]
+
+ mov w0, #1 << 7 // allow NS access to GICC_PMR
+ str w0, [x1, #4] // GICC_PMR
+
+ /* SCTLR_EL2 initialisation */
+ msr sctlr_el2, xzr
+
+ /* Return to the EL2_SP1 mode from EL3 */
+ adr x0, reset_nonsecure
+ mov x1, #0x3c9 // EL2_SP1 | D | A | I | F
+ msr elr_el3, x0
+ msr spsr_el3, x1
+ eret
+
+ /*
+ * EL2 initialisation:
+ * MMU Disabled, iCache Disabled, dCache Disabled
+ */
+reset_nonsecure:
+ /* SCTLR_EL2 initialisation */
+ mov x0, #0x2 // Alignment check enable
+ msr sctlr_el2, x0
+
+ /* Initialize vBAR */
+ adr x0, vectors
+ msr vbar_el2, x0
+
+ /* Cache/BPB/TLB Invalidate */
+ bl __flush_dcache_all // dCache invalidate
+ bl __invalidate_icache_all // iCache invalidate
+ bl __invalidate_tlb_all // invalidate I + D TLBs
+
+ /* Processor specific initialisation */
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+ bl lowlevel_init
+#endif
+
+ mrs x0, mpidr_el1
+ tst x0, #15
+ b.eq master_cpu
+
+ /*
+ * Secondary CPUs
+ */
+slave_cpu:
+
+ wfe
+ ldr x1, =SECONDARY_CPU_MAILBOX
+ ldr x0, [x1]
+ cbz x0, slave_cpu
+ br x0 // branch to the given address
+
+ /*
+ * Primary CPU
+ */
+master_cpu:
+
+ bl _main
+
+/*------------------------------------------------------------------------------*/
+
+ENTRY(c_runtime_cpu_setup)
+ /* If I-cache is enabled invalidate it */
+#ifndef CONFIG_SYS_ICACHE_OFF
+ ic iallu /* I+BTB cache invalidate */
+ isb sy
+#endif
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+ /*
+ * Memory region attributes for LPAE:
+ *
+ * n = AttrIndx[2:0]
+ * n MAIR
+ * DEVICE_nGnRnE 000 00000000
+ * DEVICE_nGnRE 001 00000100
+ * DEVICE_GRE 010 00001100
+ * NORMAL_NC 011 01000100
+ * NORMAL 100 11111111
+ */
+ ldr x0, =MAIR(0x00, MT_DEVICE_nGnRnE) | \
+ MAIR(0x04, MT_DEVICE_nGnRE) | \
+ MAIR(0x0c, MT_DEVICE_GRE) | \
+ MAIR(0x44, MT_NORMAL_NC) | \
+ MAIR(0xff, MT_NORMAL)
+ msr mair_el2, x0
+
+ /*
+ * Set/prepare TCR and TTBR. We use 512GB (39-bit) address range for
+ * both user and kernel.
+ */
+ ldr x0, =TCR_T0SZ(VA_BITS) | TCR_FLAGS | TCR_IPS_40BIT
+ orr x0, x0, TCR_TG0_64K
+ msr tcr_el2, x0
+#endif
+
+ /* Relocate vBAR */
+ adr x0, vectors
+ msr vbar_el2, x0
+
+ ret
+ENDPROC(c_runtime_cpu_setup)
diff --git a/arch/arm64/cpu/armv8/tlb.S b/arch/arm64/cpu/armv8/tlb.S
new file mode 100644
index 0000000..e28ee9d
--- /dev/null
+++ b/arch/arm64/cpu/armv8/tlb.S
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <version.h>
+#include <linux/linkage.h>
+
+/*
+ * void __invalidate_tlb_all(void)
+ *
+ * This "function" invalidate all tlb entries.
+ */
+ENTRY(__invalidate_tlb_all)
+ tlbi alle2
+ dsb sy
+ isb
+ ret
+ENDPROC(__invalidate_tlb_all)
diff --git a/arch/arm64/cpu/u-boot.lds b/arch/arm64/cpu/u-boot.lds
new file mode 100644
index 0000000..98d01d2
--- /dev/null
+++ b/arch/arm64/cpu/u-boot.lds
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013 FengHua <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64")
+OUTPUT_ARCH(aarch64)
+ENTRY(_start)
+SECTIONS
+{
+ . = ALIGN(8);
+ .text :
+ {
+ __image_copy_start = .;
+ CPUDIR/start.o (.text*)
+ *(.text*)
+ }
+
+ . = ALIGN(8);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+ . = ALIGN(8);
+ .data : {
+ *(.data*)
+ }
+
+ . = ALIGN(8);
+ .u_boot_list : {
+ KEEP(*(SORT(.u_boot_list*)));
+ }
+
+ . = ALIGN(8);
+ .reloc : {
+ __rel_got_start = .;
+ *(.got)
+ __rel_got_end = .;
+ }
+
+ __image_copy_end = .;
+ _end = .;
+
+ . = ALIGN(8);
+ .bss : {
+ __bss_start = .;
+ *(.bss*)
+ . = ALIGN(8);
+ __bss_end = .;
+ }
+
+ /DISCARD/ : { *(.dynsym) }
+ /DISCARD/ : { *(.dynstr*) }
+ /DISCARD/ : { *(.dynamic*) }
+ /DISCARD/ : { *(.plt*) }
+ /DISCARD/ : { *(.interp*) }
+ /DISCARD/ : { *(.gnu*) }
+}
diff --git a/arch/arm64/dts/aemv8a.dtsi b/arch/arm64/dts/aemv8a.dtsi
new file mode 100644
index 0000000..b45e5f3
--- /dev/null
+++ b/arch/arm64/dts/aemv8a.dtsi
@@ -0,0 +1,234 @@
+/*
+ * ARM Ltd. Fast Models
+ *
+ * Versatile Express (VE) system model
+ * Motherboard component
+ *
+ * VEMotherBoard.lisa
+ */
+
+ motherboard {
+ arm,v2m-memory-map = "rs1";
+ compatible = "arm,vexpress,v2m-p1", "simple-bus";
+ #address-cells = <2>; /* SMB chipselect number and offset */
+ #size-cells = <1>;
+ #interrupt-cells = <1>;
+ ranges;
+
+ flash at 0,00000000 {
+ compatible = "arm,vexpress-flash", "cfi-flash";
+ reg = <0 0x00000000 0x04000000>,
+ <4 0x00000000 0x04000000>;
+ bank-width = <4>;
+ };
+
+ vram at 2,00000000 {
+ compatible = "arm,vexpress-vram";
+ reg = <2 0x00000000 0x00800000>;
+ };
+
+ ethernet at 2,02000000 {
+ compatible = "smsc,lan91c111";
+ reg = <2 0x02000000 0x10000>;
+ interrupts = <15>;
+ };
+
+ v2m_clk24mhz: clk24mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ clock-output-names = "v2m:clk24mhz";
+ };
+
+ v2m_refclk1mhz: refclk1mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000>;
+ clock-output-names = "v2m:refclk1mhz";
+ };
+
+ v2m_refclk32khz: refclk32khz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-output-names = "v2m:refclk32khz";
+ };
+
+ iofpga at 3,00000000 {
+ compatible = "arm,amba-bus", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 3 0 0x200000>;
+
+ v2m_sysreg: sysreg at 010000 {
+ compatible = "arm,vexpress-sysreg";
+ reg = <0x010000 0x1000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ v2m_sysctl: sysctl at 020000 {
+ compatible = "arm,sp810", "arm,primecell";
+ reg = <0x020000 0x1000>;
+ clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>;
+ clock-names = "refclk", "timclk", "apb_pclk";
+ #clock-cells = <1>;
+ clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
+ };
+
+ aaci at 040000 {
+ compatible = "arm,pl041", "arm,primecell";
+ reg = <0x040000 0x1000>;
+ interrupts = <11>;
+ clocks = <&v2m_clk24mhz>;
+ clock-names = "apb_pclk";
+ };
+
+ mmci at 050000 {
+ compatible = "arm,pl180", "arm,primecell";
+ reg = <0x050000 0x1000>;
+ interrupts = <9 10>;
+ cd-gpios = <&v2m_sysreg 0 0>;
+ wp-gpios = <&v2m_sysreg 1 0>;
+ max-frequency = <12000000>;
+ vmmc-supply = <&v2m_fixed_3v3>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "mclk", "apb_pclk";
+ };
+
+ kmi at 060000 {
+ compatible = "arm,pl050", "arm,primecell";
+ reg = <0x060000 0x1000>;
+ interrupts = <12>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "KMIREFCLK", "apb_pclk";
+ };
+
+ kmi at 070000 {
+ compatible = "arm,pl050", "arm,primecell";
+ reg = <0x070000 0x1000>;
+ interrupts = <13>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "KMIREFCLK", "apb_pclk";
+ };
+
+ v2m_serial0: uart at 090000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x090000 0x1000>;
+ interrupts = <5>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial1: uart at 0a0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0a0000 0x1000>;
+ interrupts = <6>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial2: uart at 0b0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0b0000 0x1000>;
+ interrupts = <7>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial3: uart at 0c0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0c0000 0x1000>;
+ interrupts = <8>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ wdt at 0f0000 {
+ compatible = "arm,sp805", "arm,primecell";
+ reg = <0x0f0000 0x1000>;
+ interrupts = <0>;
+ clocks = <&v2m_refclk32khz>, <&v2m_clk24mhz>;
+ clock-names = "wdogclk", "apb_pclk";
+ };
+
+ v2m_timer01: timer at 110000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x110000 0x1000>;
+ interrupts = <2>;
+ clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_clk24mhz>;
+ clock-names = "timclken1", "timclken2", "apb_pclk";
+ };
+
+ v2m_timer23: timer at 120000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x120000 0x1000>;
+ interrupts = <3>;
+ clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&v2m_clk24mhz>;
+ clock-names = "timclken1", "timclken2", "apb_pclk";
+ };
+
+ rtc at 170000 {
+ compatible = "arm,pl031", "arm,primecell";
+ reg = <0x170000 0x1000>;
+ interrupts = <4>;
+ clocks = <&v2m_clk24mhz>;
+ clock-names = "apb_pclk";
+ };
+
+ clcd at 1f0000 {
+ compatible = "arm,pl111", "arm,primecell";
+ reg = <0x1f0000 0x1000>;
+ interrupts = <14>;
+ clocks = <&v2m_oscclk1>, <&v2m_clk24mhz>;
+ clock-names = "clcdclk", "apb_pclk";
+ };
+ };
+
+ v2m_fixed_3v3: fixedregulator at 0 {
+ compatible = "regulator-fixed";
+ regulator-name = "3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ mcc {
+ compatible = "arm,vexpress,config-bus", "simple-bus";
+ arm,vexpress,config-bridge = <&v2m_sysreg>;
+
+ v2m_oscclk1: osc at 1 {
+ /* CLCD clock */
+ compatible = "arm,vexpress-osc";
+ arm,vexpress-sysreg,func = <1 1>;
+ freq-range = <23750000 63500000>;
+ #clock-cells = <0>;
+ clock-output-names = "v2m:oscclk1";
+ };
+
+ reset at 0 {
+ compatible = "arm,vexpress-reset";
+ arm,vexpress-sysreg,func = <5 0>;
+ };
+
+ muxfpga at 0 {
+ compatible = "arm,vexpress-muxfpga";
+ arm,vexpress-sysreg,func = <7 0>;
+ };
+
+ shutdown at 0 {
+ compatible = "arm,vexpress-shutdown";
+ arm,vexpress-sysreg,func = <8 0>;
+ };
+
+ reboot at 0 {
+ compatible = "arm,vexpress-reboot";
+ arm,vexpress-sysreg,func = <9 0>;
+ };
+
+ dvimode at 0 {
+ compatible = "arm,vexpress-dvimode";
+ arm,vexpress-sysreg,func = <11 0>;
+ };
+ };
+ };
diff --git a/arch/arm64/include/asm/arch-armv8/mmu.h b/arch/arm64/include/asm/arch-armv8/mmu.h
new file mode 100644
index 0000000..2127649
--- /dev/null
+++ b/arch/arm64/include/asm/arch-armv8/mmu.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ARMV8_MMU_H_
+#define _ASM_ARMV8_MMU_H_
+
+#ifdef __ASSEMBLY__
+#define _AC(X,Y) X
+#define _AT(T,X) X
+#else
+#define __AC(X,Y) (X##Y)
+#define _AC(X,Y) __AC(X,Y)
+#define _AT(T,X) ((T)(X))
+#endif
+
+#define UL(x) _AC(x, UL)
+
+/***************************************************************/
+/*
+ * The following definitions are related each other, shoud be
+ * calculated specifically.
+ */
+#define VA_BITS (39)
+
+/* PAGE_SHIFT determines the page size */
+#undef PAGE_SIZE
+#define PAGE_SHIFT 16
+#define PAGE_SIZE (1 << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+/*
+ * section address mask and size definitions.
+ */
+#define SECTION_SHIFT 29
+#define SECTION_SIZE (_AC(1, UL) << SECTION_SHIFT)
+#define SECTION_MASK (~(SECTION_SIZE-1))
+/***************************************************************/
+
+/*
+ * Memory types available.
+ */
+#define MT_DEVICE_nGnRnE 0
+#define MT_DEVICE_nGnRE 1
+#define MT_DEVICE_GRE 2
+#define MT_NORMAL_NC 3
+#define MT_NORMAL 4
+
+#define MAIR(attr, mt) ((attr) << ((mt) * 8))
+
+/*
+ * Hardware page table definitions.
+ *
+ * Level 2 descriptor (PMD).
+ */
+#define PMD_TYPE_MASK (3 << 0)
+#define PMD_TYPE_FAULT (0 << 0)
+#define PMD_TYPE_TABLE (3 << 0)
+#define PMD_TYPE_SECT (1 << 0)
+
+/*
+ * Section
+ */
+#define PMD_SECT_S (UL(3) << 8)
+#define PMD_SECT_AF (UL(1) << 10)
+#define PMD_SECT_NG (UL(1) << 11)
+#define PMD_SECT_PXN (UL(1) << 53)
+#define PMD_SECT_UXN (UL(1) << 54)
+
+/*
+ * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
+ */
+#define PMD_ATTRINDX(t) ((t) << 2)
+#define PMD_ATTRINDX_MASK (7 << 2)
+
+/*
+ * TCR_EL2 flags.
+ */
+#define TCR_T0SZ(x) ((64 - (x)) << 0)
+#define TCR_IRGN_NC (0 << 8)
+#define TCR_IRGN_WBWA (1 << 8)
+#define TCR_IRGN_WT (2 << 8)
+#define TCR_IRGN_WBnWA (3 << 8)
+#define TCR_IRGN_MASK (3 << 8)
+#define TCR_ORGN_NC (0 << 10)
+#define TCR_ORGN_WBWA (1 << 10)
+#define TCR_ORGN_WT (2 << 10)
+#define TCR_ORGN_WBnWA (3 << 10)
+#define TCR_ORGN_MASK (3 << 10)
+#define TCR_SHARED (3 << 12)
+#define TCR_TG0_4K (0 << 14)
+#define TCR_TG0_64K (1 << 14)
+#define TCR_TG0_16K (2 << 14)
+#define TCR_IPS_40BIT (2 << 16)
+
+/* PTWs cacheable, inner/outer WBWA not shareable */
+#define TCR_FLAGS TCR_IRGN_WBWA | TCR_ORGN_WBWA
+
+#endif /* _ASM_ARMV8_MMU_H_ */
diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
new file mode 100644
index 0000000..2117ec1
--- /dev/null
+++ b/arch/arm64/include/asm/atomic.h
@@ -0,0 +1,115 @@
+/*
+ * linux/include/asm-arm/atomic.h
+ *
+ * Copyright (c) 1996 Russell King.
+ *
+ * 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.
+ *
+ * Changelog:
+ * 27-06-1996 RMK Created
+ * 13-04-1997 RMK Made functions atomic!
+ * 07-12-1997 RMK Upgraded for v2.1.
+ * 26-08-1998 PJB Added #ifdef __KERNEL__
+ */
+#ifndef __ASM_ARM64_ATOMIC_H
+#define __ASM_ARM64_ATOMIC_H
+
+#include <linux/config.h>
+
+#ifdef CONFIG_SMP
+#error SMP not supported
+#endif
+
+typedef struct { volatile int counter; } atomic_t;
+
+#define ATOMIC_INIT(i) { (i) }
+
+#ifdef __KERNEL__
+
+#include <asm/system.h>
+
+#define atomic_read(v) ((v)->counter)
+#define atomic_set(v,i) (((v)->counter) = (i))
+
+static inline void atomic_add(int i, volatile atomic_t *v)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ v->counter += i;
+ local_irq_restore(flags);
+}
+
+static inline void atomic_sub(int i, volatile atomic_t *v)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ v->counter -= i;
+ local_irq_restore(flags);
+}
+
+static inline void atomic_inc(volatile atomic_t *v)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ v->counter += 1;
+ local_irq_restore(flags);
+}
+
+static inline void atomic_dec(volatile atomic_t *v)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ v->counter -= 1;
+ local_irq_restore(flags);
+}
+
+static inline int atomic_dec_and_test(volatile atomic_t *v)
+{
+ unsigned long flags;
+ int val;
+
+ local_irq_save(flags);
+ val = v->counter;
+ v->counter = val -= 1;
+ local_irq_restore(flags);
+
+ return val == 0;
+}
+
+static inline int atomic_add_negative(int i, volatile atomic_t *v)
+{
+ unsigned long flags;
+ int val;
+
+ local_irq_save(flags);
+ val = v->counter;
+ v->counter = val += i;
+ local_irq_restore(flags);
+
+ return val < 0;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ *addr &= ~mask;
+ local_irq_restore(flags);
+}
+
+/* Atomic operations are already serializing on ARM */
+#define smp_mb__before_atomic_dec() barrier()
+#define smp_mb__after_atomic_dec() barrier()
+#define smp_mb__before_atomic_inc() barrier()
+#define smp_mb__after_atomic_inc() barrier()
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_ARM64_ATOMIC_H */
diff --git a/arch/arm64/include/asm/bitops.h b/arch/arm64/include/asm/bitops.h
new file mode 100644
index 0000000..2be9743
--- /dev/null
+++ b/arch/arm64/include/asm/bitops.h
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_BITOPS_H
+#define __ASM_ARM64_BITOPS_H
+
+#ifdef __KERNEL__
+
+#include <asm/system.h>
+
+/*
+ * Function prototypes to keep gcc -Wall happy.
+ */
+static inline void __change_bit(int nr, volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+
+ *p ^= mask;
+}
+
+static inline int __test_and_set_bit(int nr, volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old = *p;
+
+ *p = old | mask;
+ return (old & mask) != 0;
+}
+
+static inline int test_and_set_bit(int nr, volatile void * addr)
+{
+ unsigned long flags;
+ int out;
+
+ local_irq_save(flags);
+ out = __test_and_set_bit(nr, addr);
+ local_irq_restore(flags);
+
+ return out;
+}
+
+static inline int __test_and_clear_bit(int nr, volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old = *p;
+
+ *p = old & ~mask;
+ return (old & mask) != 0;
+}
+
+static inline int test_and_clear_bit(int nr, volatile void * addr)
+{
+ unsigned long flags;
+ int out;
+
+ local_irq_save(flags);
+ out = __test_and_clear_bit(nr, addr);
+ local_irq_restore(flags);
+
+ return out;
+}
+
+static inline int __test_and_change_bit(int nr, volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old = *p;
+
+ *p = old ^ mask;
+ return (old & mask) != 0;
+}
+
+static inline int test_and_change_bit(int nr, volatile void * addr)
+{
+ unsigned long flags;
+ int out;
+
+ local_irq_save(flags);
+ out = __test_and_change_bit(nr, addr);
+ local_irq_restore(flags);
+
+ return out;
+}
+
+/*
+ * This routine doesn't need to be atomic.
+ */
+static inline int test_bit(int nr, const void * addr)
+{
+ return ((unsigned char *) addr)[nr >> 3] & (1U << (nr & 7));
+}
+
+static inline int __ilog2(unsigned int x)
+{
+ return generic_fls(x) - 1;
+}
+
+/*
+ * 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)
+{
+ int k;
+
+ word = ~word;
+ k = 31;
+ if (word & 0x0000ffff) { k -= 16; word <<= 16; }
+ if (word & 0x00ff0000) { k -= 8; word <<= 8; }
+ if (word & 0x0f000000) { k -= 4; word <<= 4; }
+ if (word & 0x30000000) { k -= 2; word <<= 2; }
+ if (word & 0x40000000) { k -= 1; }
+ return k;
+}
+
+/*
+ * 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)
+
+#define ext2_set_bit test_and_set_bit
+#define ext2_clear_bit test_and_clear_bit
+#define ext2_test_bit test_bit
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_ARM64_BITOPS_H */
diff --git a/arch/arm64/include/asm/byteorder.h b/arch/arm64/include/asm/byteorder.h
new file mode 100644
index 0000000..d5edfe8
--- /dev/null
+++ b/arch/arm64/include/asm/byteorder.h
@@ -0,0 +1,31 @@
+/*
+ * linux/include/asm-arm/byteorder.h
+ *
+ * ARM Endian-ness. In little endian mode, the data bus is connected such
+ * that byte accesses appear as:
+ * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31
+ * and word accesses (data or instruction) appear as:
+ * d0...d31
+ *
+ * When in big endian mode, byte accesses appear as:
+ * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7
+ * and word accesses (data or instruction) appear as:
+ * d0...d31
+ */
+#ifndef __ASM_ARM64_BYTEORDER_H
+#define __ASM_ARM64_BYTEORDER_H
+
+#include <asm/types.h>
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+# define __BYTEORDER_HAS_U64__
+# define __SWAB_64_THRU_32__
+#endif
+
+#ifdef __BIG_ENDIAN__
+#include <linux/byteorder/big_endian.h>
+#else
+#include <linux/byteorder/little_endian.h>
+#endif
+
+#endif /* __ASM_ARM64_BYTEORDER_H */
diff --git a/arch/arm64/include/asm/cache.h b/arch/arm64/include/asm/cache.h
new file mode 100644
index 0000000..d409b0e
--- /dev/null
+++ b/arch/arm64/include/asm/cache.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ARM64_CACHE_H
+#define _ASM_ARM64_CACHE_H
+
+/*
+ * The current upper bound for ARM L1 data cache line sizes is 64 bytes. We
+ * use that value for aligning DMA buffers unless the board config has specified
+ * an alternate cache line size.
+ */
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
+#else
+#define ARCH_DMA_MINALIGN 64
+#endif
+
+#endif /* _ASM_ARM64_CACHE_H */
diff --git a/arch/arm64/include/asm/config.h b/arch/arm64/include/asm/config.h
new file mode 100644
index 0000000..5e79aab
--- /dev/null
+++ b/arch/arm64/include/asm/config.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ARM64_CONFIG_H_
+#define _ASM_ARM64_CONFIG_H_
+
+#define CONFIG_LMB
+
+#define CONFIG_SYS_BOOT_RAMDISK_HIGH
+
+/*
+ * Currently, gcc-aarch64 produce error when compiling with
+ * -pie and rel_dyn. So, GOT is used to relocate u-boot and
+ * configuration CONFIG_NEEDS_MANUAL_RELOC is needed.
+ */
+#define CONFIG_NEEDS_MANUAL_RELOC
+
+#define CONFIG_SYS_HZ 1000
+
+#endif /* _ASM_ARM64_CONFIG_H_ */
diff --git a/arch/arm64/include/asm/errno.h b/arch/arm64/include/asm/errno.h
new file mode 100644
index 0000000..4c82b50
--- /dev/null
+++ b/arch/arm64/include/asm/errno.h
@@ -0,0 +1 @@
+#include <asm-generic/errno.h>
diff --git a/arch/arm64/include/asm/global_data.h b/arch/arm64/include/asm/global_data.h
new file mode 100644
index 0000000..13b66d4
--- /dev/null
+++ b/arch/arm64/include/asm/global_data.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_GBL_DATA_H
+#define __ASM_ARM64_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+#ifndef CONFIG_SYS_DCACHE_OFF
+ unsigned long tlb_addr;
+ unsigned long tlb_size;
+#endif
+};
+
+#include <asm-generic/global_data.h>
+
+#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18")
+
+#endif /* __ASM_ARM64_GBL_DATA_H */
diff --git a/arch/arm64/include/asm/gpio.h b/arch/arm64/include/asm/gpio.h
new file mode 100644
index 0000000..306ab4c
--- /dev/null
+++ b/arch/arm64/include/asm/gpio.h
@@ -0,0 +1 @@
+#include <asm-generic/gpio.h>
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
new file mode 100644
index 0000000..398ae53
--- /dev/null
+++ b/arch/arm64/include/asm/io.h
@@ -0,0 +1,193 @@
+/*
+ * linux/include/asm-arm/io.h
+ *
+ * Copyright (C) 1996-2000 Russell King
+ *
+ * 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.
+ *
+ * Modifications:
+ * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both
+ * constant addresses and variable addresses.
+ * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture
+ * specific IO header files.
+ * 27-Mar-1999 PJB Second parameter of memcpy_toio is const..
+ * 04-Apr-1999 PJB Added check_signature.
+ * 12-Dec-1999 RMK More cleanups
+ * 18-Jun-2000 RMK Removed virt_to_* and friends definitions
+ */
+
+#ifndef __ASM_ARM64_IO_H
+#define __ASM_ARM64_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+/*
+ * 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);
+}
+
+/*
+ * Generic virtual read/write. Note that we don't support half-word
+ * read/writes. We define __arch_*[bl] here, and leave __arch_*w
+ * to the architecture specific code.
+ */
+#define __arch_getb(a) (*(volatile unsigned char *)(a))
+#define __arch_getw(a) (*(volatile unsigned short *)(a))
+#define __arch_getl(a) (*(volatile unsigned int *)(a))
+
+#define __arch_putb(v,a) (*(volatile unsigned char *)(a) = (v))
+#define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v))
+#define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v))
+
+extern inline void __raw_writesb(unsigned long addr, const void *data, int bytelen)
+{
+ uint8_t *buf = (uint8_t *)data;
+ while(bytelen--)
+ __arch_putb(*buf++, addr);
+}
+
+extern inline void __raw_writesw(unsigned long addr, const void *data, int wordlen)
+{
+ uint16_t *buf = (uint16_t *)data;
+ while(wordlen--)
+ __arch_putw(*buf++, addr);
+}
+
+extern inline void __raw_writesl(unsigned long addr, const void *data, int longlen)
+{
+ uint32_t *buf = (uint32_t *)data;
+ while(longlen--)
+ __arch_putl(*buf++, addr);
+}
+
+extern inline void __raw_readsb(unsigned long addr, void *data, int bytelen)
+{
+ uint8_t *buf = (uint8_t *)data;
+ while(bytelen--)
+ *buf++ = __arch_getb(addr);
+}
+
+extern inline void __raw_readsw(unsigned long addr, void *data, int wordlen)
+{
+ uint16_t *buf = (uint16_t *)data;
+ while(wordlen--)
+ *buf++ = __arch_getw(addr);
+}
+
+extern inline void __raw_readsl(unsigned long addr, void *data, int longlen)
+{
+ uint32_t *buf = (uint32_t *)data;
+ while(longlen--)
+ *buf++ = __arch_getl(addr);
+}
+
+#define __raw_writeb(v,a) __arch_putb(v,a)
+#define __raw_writew(v,a) __arch_putw(v,a)
+#define __raw_writel(v,a) __arch_putl(v,a)
+
+#define __raw_readb(a) __arch_getb(a)
+#define __raw_readw(a) __arch_getw(a)
+#define __raw_readl(a) __arch_getl(a)
+
+/*
+ * TODO: The kernel offers some more advanced versions of barriers, it might
+ * have some advantages to use them instead of the simple one here.
+ */
+#define dmb() __asm__ __volatile__ ("" : : : "memory")
+#define __iormb() dmb()
+#define __iowmb() dmb()
+
+#define writeb(v,c) ({ u8 __v = v; __iowmb(); __arch_putb(__v,c); __v; })
+#define writew(v,c) ({ u16 __v = v; __iowmb(); __arch_putw(__v,c); __v; })
+#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; })
+
+#define readb(c) ({ u8 __v = __arch_getb(c); __iormb(); __v; })
+#define readw(c) ({ u16 __v = __arch_getw(c); __iormb(); __v; })
+#define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; })
+
+/*
+ * Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single call. These macros can
+ * also be used to set a multiple-bit bit pattern using a mask, by
+ * specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+
+#define out_arch(type,endian,a,v) __raw_write##type(cpu_to_##endian(v),a)
+#define in_arch(type,endian,a) endian##_to_cpu(__raw_read##type(a))
+
+#define out_le32(a,v) out_arch(l,le32,a,v)
+#define out_le16(a,v) out_arch(w,le16,a,v)
+
+#define in_le32(a) in_arch(l,le32,a)
+#define in_le16(a) in_arch(w,le16,a)
+
+#define out_be32(a,v) out_arch(l,be32,a,v)
+#define out_be16(a,v) out_arch(w,be16,a,v)
+
+#define in_be32(a) in_arch(l,be32,a)
+#define in_be16(a) in_arch(w,be16,a)
+
+#define out_8(a,v) __raw_writeb(v,a)
+#define in_8(a) __raw_readb(a)
+
+#define clrbits(type, addr, clear) \
+ out_##type((addr), in_##type(addr) & ~(clear))
+
+#define setbits(type, addr, set) \
+ out_##type((addr), in_##type(addr) | (set))
+
+#define clrsetbits(type, addr, clear, set) \
+ out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
+
+#define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
+#define setbits_be32(addr, set) setbits(be32, addr, set)
+#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
+
+#define clrbits_le32(addr, clear) clrbits(le32, addr, clear)
+#define setbits_le32(addr, set) setbits(le32, addr, set)
+#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
+
+#define clrbits_be16(addr, clear) clrbits(be16, addr, clear)
+#define setbits_be16(addr, set) setbits(be16, addr, set)
+#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
+
+#define clrbits_le16(addr, clear) clrbits(le16, addr, clear)
+#define setbits_le16(addr, set) setbits(le16, addr, set)
+#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
+
+#define clrbits_8(addr, clear) clrbits(8, addr, clear)
+#define setbits_8(addr, set) setbits(8, addr, set)
+#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_ARM64_IO_H */
diff --git a/arch/arm64/include/asm/linkage.h b/arch/arm64/include/asm/linkage.h
new file mode 100644
index 0000000..05e909e
--- /dev/null
+++ b/arch/arm64/include/asm/linkage.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_LINKAGE_H
+#define __ASM_ARM64_LINKAGE_H
+
+/*
+ * Register aliases.
+ */
+lr .req x30 // link register
+
+/*
+ * Stack pushing/popping (register pairs only).
+ * Equivalent to store decrement before,
+ * load increment after.
+ */
+.macro push, xreg1, xreg2
+ stp \xreg1, \xreg2, [sp, #-16]!
+.endm
+
+.macro pop, xreg1, xreg2
+ ldp \xreg1, \xreg2, [sp], #16
+.endm
+
+.macro ventry label
+ .align 7
+ b \label
+.endm
+
+#endif /* __ASM_ARM64_LINKAGE_H */
diff --git a/arch/arm64/include/asm/posix_types.h b/arch/arm64/include/asm/posix_types.h
new file mode 100644
index 0000000..d272a35
--- /dev/null
+++ b/arch/arm64/include/asm/posix_types.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ARCH_ARM64_POSIX_TYPES_H
+#define __ARCH_ARM64_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc. Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned short __kernel_dev_t;
+typedef unsigned long __kernel_ino_t;
+typedef unsigned short __kernel_mode_t;
+typedef unsigned short __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef unsigned short __kernel_ipc_pid_t;
+typedef unsigned short __kernel_uid_t;
+typedef unsigned short __kernel_gid_t;
+typedef unsigned long __kernel_size_t;
+typedef long __kernel_ssize_t;
+typedef long __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef long __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 __kernel_uid_t __kernel_old_uid_t;
+typedef __kernel_gid_t __kernel_old_gid_t;
+
+#ifdef __GNUC__
+typedef long long __kernel_loff_t;
+#endif
+
+#endif /* __ARCH_ARM64_POSIX_TYPES_H */
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
new file mode 100644
index 0000000..67c0233
--- /dev/null
+++ b/arch/arm64/include/asm/processor.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_PROCESSOR_H
+#define __ASM_ARM64_PROCESSOR_H
+
+/* CCSIDR */
+#define CCSIDR_LINE_SIZE_OFFSET 0
+#define CCSIDR_LINE_SIZE_MASK 0x7
+#define CCSIDR_ASSOCIATIVITY_OFFSET 3
+#define CCSIDR_ASSOCIATIVITY_MASK (0x3FF << 3)
+#define CCSIDR_NUM_SETS_OFFSET 13
+#define CCSIDR_NUM_SETS_MASK (0x7FFF << 13)
+
+/*
+ * Values for InD field in CSSELR
+ * Selects the type of cache
+ */
+#define CSSELR_IND_DATA_UNIFIED 0
+#define CSSELR_IND_INSTRUCTION 1
+
+/* Values for Ctype fields in CLIDR */
+#define CLIDR_CTYPE_NO_CACHE 0
+#define CLIDR_CTYPE_INSTRUCTION_ONLY 1
+#define CLIDR_CTYPE_DATA_ONLY 2
+#define CLIDR_CTYPE_INSTRUCTION_DATA 3
+#define CLIDR_CTYPE_UNIFIED 4
+
+/*
+ * SCTLR_EL2 bits definitions
+ */
+#define CR_M (1 << 0) /* MMU enable */
+#define CR_A (1 << 1) /* Alignment abort enable */
+#define CR_C (1 << 2) /* Dcache enable */
+#define CR_SA (1 << 3) /* Stack Alignment Check Enable */
+#define CR_I (1 << 12) /* Icache enable */
+#define CR_WXN (1 << 19) /* Write Permision Imply XN */
+#define CR_EE (1 << 25) /* Exception (Big) Endian */
+
+#endif /* __ASM_ARM64_PROCESSOR_H */
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
new file mode 100644
index 0000000..8664d3e
--- /dev/null
+++ b/arch/arm64/include/asm/ptrace.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_PTRACE_H
+#define __ASM_ARM64_PTRACE_H
+
+#define S_X0 (0) /* offsetof(struct pt_regs, regs[0]) */
+#define S_X1 (8) /* offsetof(struct pt_regs, regs[1]) */
+#define S_X2 (16) /* offsetof(struct pt_regs, regs[2]) */
+#define S_X3 (24 /* offsetof(struct pt_regs, regs[3]) */
+#define S_X4 (32) /* offsetof(struct pt_regs, regs[4]) */
+#define S_X5 (40) /* offsetof(struct pt_regs, regs[5]) */
+#define S_X6 (48) /* offsetof(struct pt_regs, regs[6]) */
+#define S_X7 (56) /* offsetof(struct pt_regs, regs[7]) */
+#define S_LR (240) /* offsetof(struct pt_regs, regs[30]) */
+#define S_SP (248) /* offsetof(struct pt_regs, sp) */
+#define S_PSTATE (264) /* offsetof(struct pt_regs, pstate) */
+#define S_PC (256) /* offsetof(struct pt_regs, pc) */
+#define S_SYSCALLNO (272) /* offsetof(struct pt_regs, syscallno) */
+#define S_FRAME_SIZE (280) /* sizeof(struct pt_regs) */
+
+#ifndef __ASSEMBLY__
+
+/*
+ * This struct defines the way the registers are stored on the stack during an
+ * exception. Note that sizeof(struct pt_regs) has to be a multiple of 16 (for
+ * stack alignment). struct user_pt_regs must form a prefix of struct pt_regs.
+ */
+struct pt_regs {
+ u64 regs[31];
+ u64 sp;
+ u64 pc;
+ u64 pstate;
+ u64 syscallno;
+};
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_ARM64_PTRACE_H */
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
new file mode 100644
index 0000000..c042cb6
--- /dev/null
+++ b/arch/arm64/include/asm/sections.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM_SECTIONS_H
+#define __ASM_ARM_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif
diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h
new file mode 100644
index 0000000..550201f
--- /dev/null
+++ b/arch/arm64/include/asm/string.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_STRING_H
+#define __ASM_ARM64_STRING_H
+
+#include <config.h>
+
+#undef __HAVE_ARCH_STRRCHR
+extern char * strrchr(const char * s, int c);
+
+#undef __HAVE_ARCH_STRCHR
+extern char * strchr(const char * s, int c);
+
+#undef __HAVE_ARCH_MEMCPY
+extern void * memcpy(void *, const void *, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMMOVE
+extern void * memmove(void *, const void *, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMCHR
+extern void * memchr(const void *, int, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMZERO
+extern void memzero(void *ptr, __kernel_size_t n);
+
+#undef __HAVE_ARCH_MEMSET
+extern void * memset(void *, int, __kernel_size_t);
+
+#endif /* __ASM_ARM64_STRING_H */
diff --git a/arch/arm64/include/asm/system.h b/arch/arm64/include/asm/system.h
new file mode 100644
index 0000000..8f57335
--- /dev/null
+++ b/arch/arm64/include/asm/system.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_ARCH_SYSTEM_H
+#define __ASM_ARM64_ARCH_SYSTEM_H
+
+#include <linux/types.h>
+
+#ifndef __ASSEMBLY__
+
+void outer_cache_enable(void);
+void outer_cache_disable(void);
+void outer_cache_flush_all(void);
+void outer_cache_inval_all(void);
+void outer_cache_flush_range(unsigned long start, unsigned long end);
+void outer_cache_inval_range(unsigned long start, unsigned long end);
+
+/*
+ * Save the current interrupt enable state
+ * and disable IRQs/FIQs
+ */
+#define local_irq_save(flags) \
+ { \
+ asm volatile( \
+ "mrs %0, daif" \
+ "msr daifset, #3" \
+ : "=r" (flags) \
+ : \
+ : "memory"); \
+ }
+
+/*
+ * restore saved IRQ & FIQ state
+ */
+#define local_irq_restore(flags) \
+ { \
+ asm volatile( \
+ "msr daif, %0" \
+ : \
+ : "r" (flags) \
+ : "memory"); \
+ }
+
+/*
+ * Enable IRQs/FIQs
+ */
+#define local_irq_enable() \
+ { \
+ asm volatile( \
+ "msr daifclr, #3" \
+ : \
+ : \
+ : "memory"); \
+ }
+
+/*
+ * Disable IRQs/FIQs
+ */
+#define local_irq_disable() \
+ { \
+ asm volatile( \
+ "msr daifset, #3" \
+ : \
+ : \
+ : "memory"); \
+ }
+
+#define sev() asm volatile("sev" : : : "memory")
+#define wfe() asm volatile("wfe" : : : "memory")
+#define wfi() asm volatile("wfi" : : : "memory")
+
+#define isb() asm volatile("isb" : : : "memory")
+#define dsb() asm volatile("dsb sy" : : : "memory")
+
+#define mb() dsb()
+#define rmb() asm volatile("dsb ld" : : : "memory")
+#define wmb() asm volatile("dsb st" : : : "memory")
+
+static inline unsigned int get_sctlr(void)
+{
+ unsigned int val;
+ asm volatile("mrs %0, sctlr_el2" : "=r" (val) : : "cc");
+ return val;
+}
+
+static inline void set_sctlr(unsigned int val)
+{
+ asm volatile("msr sctlr_el2, %0" : : "r" (val) : "cc");
+ asm volatile("isb");
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_ARM64_ARCH_SYSTEM_H */
diff --git a/arch/arm64/include/asm/types.h b/arch/arm64/include/asm/types.h
new file mode 100644
index 0000000..7aa08cb
--- /dev/null
+++ b/arch/arm64/include/asm/types.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM64_TYPES_H
+#define __ASM_ARM64_TYPES_H
+
+#define BITS_PER_LONG 64
+
+typedef unsigned short umode_t;
+
+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 __s64;
+typedef unsigned long __u64;
+
+/*
+ * 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 s64;
+typedef unsigned long u64;
+
+/* 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_ARM64_TYPES_H */
diff --git a/arch/arm64/include/asm/u-boot.h b/arch/arm64/include/asm/u-boot.h
new file mode 100644
index 0000000..c0cf855
--- /dev/null
+++ b/arch/arm64/include/asm/u-boot.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _U_BOOT_ARM64_H_
+#define _U_BOOT_ARM64_H_
+
+typedef struct bd_info {
+ unsigned long bi_baudrate; /* serial console baudrate */
+ struct /* RAM configuration */
+ {
+ unsigned long start;
+ unsigned long size;
+ } bi_dram[CONFIG_NR_DRAM_BANKS];
+} bd_t;
+
+/* For image.h:image_check_target_arch() */
+#define IH_ARCH_DEFAULT IH_ARCH_ARM64
+
+#endif /* _U_BOOT_ARM64_H_ */
diff --git a/arch/arm64/include/asm/unaligned.h b/arch/arm64/include/asm/unaligned.h
new file mode 100644
index 0000000..39b509a
--- /dev/null
+++ b/arch/arm64/include/asm/unaligned.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2013 David Feng <fenghua at phytium.com.cn>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ARM64_UNALIGNED_H
+#define _ASM_ARM64_UNALIGNED_H
+
+#include <asm-generic/unaligned.h>
+
+#endif /* _ASM_ARM64_UNALIGNED_H */
diff --git a/arch/arm64/include/asm/utils.h b/arch/arm64/include/asm/utils.h
new file mode 100644
index 0000000..828b86c
--- /dev/null
+++ b/arch/arm64/include/asm/utils.h
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Aneesh V <aneesh at ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#ifndef _UTILS_H_
+#define _UTILS_H_
+
+static inline s32 log_2_n_round_up(u32 n)
+{
+ s32 log2n = -1;
+ u32 temp = n;
+
+ while (temp) {
+ log2n++;
+ temp >>= 1;
+ }
+
+ if (n & (n - 1))
+ return log2n + 1; /* not power of 2 - round up */
+ else
+ return log2n; /* power of 2 */
+}
+
+static inline s32 log_2_n_round_down(u32 n)
+{
+ s32 log2n = -1;
+ u32 temp = n;
+
+ while (temp) {
+ log2n++;
+ temp >>= 1;
+ }
+
+ return log2n;
+}
+
+#endif
--
1.7.9.5
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