From: Rick Chen <r...@andestech.com>
Add header files for RISC-V.
Cache, ptregs, data type and other definitions are included.
Signed-off-by: Rick Chen <r...@andestech.com>
Signed-off-by: Rick Chen <rickche...@gmail.com>
Signed-off-by: Greentime Hu <green...@gmail.com>
---
arch/riscv/include/asm/bitops.h | 172 ++++++++++++
arch/riscv/include/asm/bootm.h | 65 +++++
arch/riscv/include/asm/byteorder.h | 35 +++
arch/riscv/include/asm/cache.h | 22 ++
arch/riscv/include/asm/config.h | 13 +
arch/riscv/include/asm/encoding.h | 188 +++++++++++++
arch/riscv/include/asm/global_data.h | 22 ++
arch/riscv/include/asm/io.h | 494 +++++++++++++++++++++++++++++++++
arch/riscv/include/asm/linkage.h | 12 +
arch/riscv/include/asm/mach-types.h | 30 ++
arch/riscv/include/asm/posix_types.h | 89 ++++++
arch/riscv/include/asm/processor.h | 26 ++
arch/riscv/include/asm/ptrace.h | 106 +++++++
arch/riscv/include/asm/sections.h | 11 +
arch/riscv/include/asm/setup.h | 191 +++++++++++++
arch/riscv/include/asm/string.h | 43 +++
arch/riscv/include/asm/system.h | 18 ++
arch/riscv/include/asm/types.h | 64 +++++
arch/riscv/include/asm/u-boot-riscv.h | 21 ++
arch/riscv/include/asm/u-boot.h | 46 +++
arch/riscv/include/asm/unaligned.h | 1 +
21 files changed, 1669 insertions(+), 0 deletions(-)
create mode 100644 arch/riscv/include/asm/bitops.h
create mode 100644 arch/riscv/include/asm/bootm.h
create mode 100644 arch/riscv/include/asm/byteorder.h
create mode 100644 arch/riscv/include/asm/cache.h
create mode 100644 arch/riscv/include/asm/config.h
create mode 100644 arch/riscv/include/asm/encoding.h
create mode 100644 arch/riscv/include/asm/global_data.h
create mode 100644 arch/riscv/include/asm/io.h
create mode 100644 arch/riscv/include/asm/linkage.h
create mode 100644 arch/riscv/include/asm/mach-types.h
create mode 100644 arch/riscv/include/asm/posix_types.h
create mode 100644 arch/riscv/include/asm/processor.h
create mode 100644 arch/riscv/include/asm/ptrace.h
create mode 100644 arch/riscv/include/asm/sections.h
create mode 100644 arch/riscv/include/asm/setup.h
create mode 100644 arch/riscv/include/asm/string.h
create mode 100644 arch/riscv/include/asm/system.h
create mode 100644 arch/riscv/include/asm/types.h
create mode 100644 arch/riscv/include/asm/u-boot-riscv.h
create mode 100644 arch/riscv/include/asm/u-boot.h
create mode 100644 arch/riscv/include/asm/unaligned.h
diff --git a/arch/riscv/include/asm/bitops.h b/arch/riscv/include/asm/bitops.h
new file mode 100644
index 0000000..55d420f
--- /dev/null
+++ b/arch/riscv/include/asm/bitops.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright 1995, Russell King.
+ * Various bits and pieces copyrights include:
+ * Linus Torvalds (test_bit).
+ *
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
+ *
+ * Please note that the code in this file should never be included
+ * from user space. Many of these are not implemented in assembler
+ * since they would be too costly. Also, they require priviledged
+ * instructions (which are not available from user mode) to ensure
+ * that they are atomic.
+ */
+
+#ifndef __ASM_RISCV_BITOPS_H
+#define __ASM_RISCV_BITOPS_H
+
+#ifdef __KERNEL__
+
+#include <asm/system.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/__ffs.h>
+
+#define smp_mb__before_clear_bit() do { } while (0)
+#define smp_mb__after_clear_bit() do { } while (0)
+
+/*
+ * Function prototypes to keep gcc -Wall happy.
+ */
+static inline void __set_bit(int nr, void *addr)
+{
+ int *a = (int *)addr;
+ int mask;
+
+ a += nr >> 5;
+ mask = 1 << (nr & 0x1f);
+ *a |= mask;
+}
+
+static inline void __clear_bit(int nr, void *addr)
+{
+ int *a = (int *)addr;
+ int mask;
+
+ a += nr >> 5;
+ mask = 1 << (nr & 0x1f);
+ *a &= ~mask;
+}
+
+static inline void __change_bit(int nr, 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, void *addr)
+{
+ int mask, retval;
+ unsigned int *a = (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, void *addr)
+{
+ int mask, retval;
+ unsigned int *a = (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, void *addr)
+{
+ int mask, retval;
+ unsigned int *a = (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 test_bit(int nr, const void *addr)
+{
+ return ((unsigned char *)addr)[nr >> 3] & (1U << (nr & 7));
+}
+
+/*
+ * 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;
+}
+
+/*
+ * ffs: find first bit set. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+
+/*
+ * redefined in include/linux/bitops.h
+ * #define ffs(x) generic_ffs(x)
+ */
+
+/*
+ * 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
+#define ext2_find_first_zero_bit find_first_zero_bit
+#define ext2_find_next_zero_bit find_next_zero_bit
+
+/* 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)
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_RISCV_BITOPS_H */
diff --git a/arch/riscv/include/asm/bootm.h b/arch/riscv/include/asm/bootm.h
new file mode 100644
index 0000000..0a644bb
--- /dev/null
+++ b/arch/riscv/include/asm/bootm.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2013, Google Inc.
+ *
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schw...@corscience.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#ifndef NDS32_BOOTM_H
+#define NDS32_BOOTM_H
+
+#include <asm/setup.h>
+
+#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
+ defined(CONFIG_CMDLINE_TAG) || \
+ defined(CONFIG_INITRD_TAG) || \
+ defined(CONFIG_SERIAL_TAG) || \
+ defined(CONFIG_REVISION_TAG)
+# define BOOTM_ENABLE_TAGS 1
+#else
+# define BOOTM_ENABLE_TAGS 0
+#endif
+
+#ifdef CONFIG_SETUP_MEMORY_TAGS
+# define BOOTM_ENABLE_MEMORY_TAGS 1
+#else
+# define BOOTM_ENABLE_MEMORY_TAGS 0
+#endif
+
+#ifdef CONFIG_CMDLINE_TAG
+ #define BOOTM_ENABLE_CMDLINE_TAG 1
+#else
+ #define BOOTM_ENABLE_CMDLINE_TAG 0
+#endif
+
+#ifdef CONFIG_INITRD_TAG
+ #define BOOTM_ENABLE_INITRD_TAG 1
+#else
+ #define BOOTM_ENABLE_INITRD_TAG 0
+#endif
+
+#ifdef CONFIG_SERIAL_TAG
+ #define BOOTM_ENABLE_SERIAL_TAG 1
+void get_board_serial(struct tag_serialnr *serialnr);
+#else
+ #define BOOTM_ENABLE_SERIAL_TAG 0
+static inline void get_board_serial(struct tag_serialnr *serialnr)
+{
+}
+#endif
+
+#ifdef CONFIG_REVISION_TAG
+ #define BOOTM_ENABLE_REVISION_TAG 1
+u32 get_board_rev(void);
+#else
+ #define BOOTM_ENABLE_REVISION_TAG 0
+static inline u32 get_board_rev(void)
+{
+ return 0;
+}
+#endif
+
+#endif
diff --git a/arch/riscv/include/asm/byteorder.h
b/arch/riscv/include/asm/byteorder.h
new file mode 100644
index 0000000..d26ac56
--- /dev/null
+++ b/arch/riscv/include/asm/byteorder.h
@@ -0,0 +1,35 @@
+/*
+ * linux/include/asm-arm/byteorder.h
+ *
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * 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_RISCV_BYTEORDER_H
+#define __ASM_RISCV_BYTEORDER_H
+
+#include <asm/types.h>
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+# define __BYTEORDER_HAS_U64__
+# define __SWAB_64_THRU_32__
+#endif
+
+#ifdef __RISCVEB__
+#include <linux/byteorder/big_endian.h>
+#else
+#include <linux/byteorder/little_endian.h>
+#endif
+
+#endif
diff --git a/arch/riscv/include/asm/cache.h b/arch/riscv/include/asm/cache.h
new file mode 100644
index 0000000..facf072
--- /dev/null
+++ b/arch/riscv/include/asm/cache.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _ASM_RISCV_CACHE_H
+#define _ASM_RISCV_CACHE_H
+
+/*
+ * The current upper bound for RISCV L1 data cache line sizes is 32 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 32
+#endif
+
+#endif /* _ASM_RISCV_CACHE_H */
diff --git a/arch/riscv/include/asm/config.h b/arch/riscv/include/asm/config.h
new file mode 100644
index 0000000..5f94eb0
--- /dev/null
+++ b/arch/riscv/include/asm/config.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _ASM_CONFIG_H_
+#define _ASM_CONFIG_H_
+
+#define CONFIG_LMB
+
+#endif
diff --git a/arch/riscv/include/asm/encoding.h
b/arch/riscv/include/asm/encoding.h
new file mode 100644
index 0000000..5ff6d59
--- /dev/null
+++ b/arch/riscv/include/asm/encoding.h
@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2017 Microsemi Corporation.
+ * Padmarao Begari, Microsemi Corporation <padmarao.beg...@microsemi.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef RISCV_CSR_ENCODING_H
+#define RISCV_CSR_ENCODING_H
+
+#define MSTATUS_UIE 0x00000001
+#define MSTATUS_SIE 0x00000002
+#define MSTATUS_HIE 0x00000004
+#define MSTATUS_MIE 0x00000008
+#define MSTATUS_UPIE 0x00000010
+#define MSTATUS_SPIE 0x00000020
+#define MSTATUS_HPIE 0x00000040
+#define MSTATUS_MPIE 0x00000080
+#define MSTATUS_SPP 0x00000100
+#define MSTATUS_HPP 0x00000600
+#define MSTATUS_MPP 0x00001800
+#define MSTATUS_FS 0x00006000
+#define MSTATUS_XS 0x00018000
+#define MSTATUS_MPRV 0x00020000
+#define MSTATUS_PUM 0x00040000
+#define MSTATUS_VM 0x1F000000
+#define MSTATUS32_SD 0x80000000
+#define MSTATUS64_SD 0x8000000000000000
+
+#define MCAUSE32_CAUSE 0x7FFFFFFF
+#define MCAUSE64_CAUSE 0x7FFFFFFFFFFFFFFF
+#define MCAUSE32_INT 0x80000000
+#define MCAUSE64_INT 0x8000000000000000
+
+#define SSTATUS_UIE 0x00000001
+#define SSTATUS_SIE 0x00000002
+#define SSTATUS_UPIE 0x00000010
+#define SSTATUS_SPIE 0x00000020
+#define SSTATUS_SPP 0x00000100
+#define SSTATUS_FS 0x00006000
+#define SSTATUS_XS 0x00018000
+#define SSTATUS_PUM 0x00040000
+#define SSTATUS32_SD 0x80000000
+#define SSTATUS64_SD 0x8000000000000000
+
+#define MIP_SSIP BIT(IRQ_S_SOFT)
+#define MIP_HSIP BIT(IRQ_H_SOFT)
+#define MIP_MSIP BIT(IRQ_M_SOFT)
+#define MIP_STIP BIT(IRQ_S_TIMER)
+#define MIP_HTIP BIT(IRQ_H_TIMER)
+#define MIP_MTIP BIT(IRQ_M_TIMER)
+#define MIP_SEIP BIT(IRQ_S_EXT)
+#define MIP_HEIP BIT(IRQ_H_EXT)
+#define MIP_MEIP BIT(IRQ_M_EXT)
+
+#define SIP_SSIP MIP_SSIP
+#define SIP_STIP MIP_STIP
+
+#define PRV_U 0
+#define PRV_S 1
+#define PRV_H 2
+#define PRV_M 3
+
+#define VM_MBARE 0
+#define VM_MBB 1
+#define VM_MBBID 2
+#define VM_SV32 8
+#define VM_SV39 9
+#define VM_SV48 10
+
+#define IRQ_S_SOFT 1
+#define IRQ_H_SOFT 2
+#define IRQ_M_SOFT 3
+#define IRQ_S_TIMER 5
+#define IRQ_H_TIMER 6
+#define IRQ_M_TIMER 7
+#define IRQ_S_EXT 9
+#define IRQ_H_EXT 10
+#define IRQ_M_EXT 11
+#define IRQ_COP 12
+#define IRQ_HOST 13
+
+#define DEFAULT_RSTVEC 0x00001000
+#define DEFAULT_NMIVEC 0x00001004
+#define DEFAULT_MTVEC 0x00001010
+#define CONFIG_STRING_ADDR 0x0000100C
+#define EXT_IO_BASE 0x40000000
+#define DRAM_BASE 0x80000000
+
+// page table entry (PTE) fields
+#define PTE_V 0x001 // Valid
+#define PTE_TYPE 0x01E // Type
+#define PTE_R 0x020 // Referenced
+#define PTE_D 0x040 // Dirty
+#define PTE_SOFT 0x380 // Reserved for Software
+
+#define PTE_TYPE_TABLE 0x00
+#define PTE_TYPE_TABLE_GLOBAL 0x02
+#define PTE_TYPE_URX_SR 0x04
+#define PTE_TYPE_URWX_SRW 0x06
+#define PTE_TYPE_UR_SR 0x08
+#define PTE_TYPE_URW_SRW 0x0A
+#define PTE_TYPE_URX_SRX 0x0C
+#define PTE_TYPE_URWX_SRWX0x0E
+#define PTE_TYPE_SR 0x10
+#define PTE_TYPE_SRW 0x12
+#define PTE_TYPE_SRX 0x14
+#define PTE_TYPE_SRWX 0x16
+#define PTE_TYPE_SR_GLOBAL 0x18
+#define PTE_TYPE_SRW_GLOBAL 0x1A
+#define PTE_TYPE_SRX_GLOBAL 0x1C
+#define PTE_TYPE_SRWX_GLOBAL 0x1E
+
+#define PTE_PPN_SHIFT 10
+
+#define PTE_TABLE(PTE) ((0x0000000AU >> ((PTE) & 0x1F)) & 1)
+#define PTE_UR(PTE) ((0x0000AAA0U >> ((PTE) & 0x1F)) & 1)
+#define PTE_UW(PTE) ((0x00008880U >> ((PTE) & 0x1F)) & 1)
+#define PTE_UX(PTE) ((0x0000A0A0U >> ((PTE) & 0x1F)) & 1)
+#define PTE_SR(PTE) ((0xAAAAAAA0U >> ((PTE) & 0x1F)) & 1)
+#define PTE_SW(PTE) ((0x88888880U >> ((PTE) & 0x1F)) & 1)
+#define PTE_SX(PTE) ((0xA0A0A000U >> ((PTE) & 0x1F)) & 1)
+
+#define PTE_CHECK_PERM(PTE, SUPERVISOR, STORE, FETCH) \
+ ((STORE) ? ((SUPERVISOR) ? PTE_SW(PTE) : PTE_UW(PTE)) : \
+ (FETCH) ? ((SUPERVISOR) ? PTE_SX(PTE) : PTE_UX(PTE)) : \
+ ((SUPERVISOR) ? PTE_SR(PTE) : PTE_UR(PTE)))
+
+#ifdef __riscv
+#ifdef CONFIG_64BIT
+# define MSTATUS_SD MSTATUS64_SD
+# define SSTATUS_SD SSTATUS64_SD
+# define MCAUSE_INT MCAUSE64_INT
+# define MCAUSE_CAUSE MCAUSE64_CAUSE
+# define RISCV_PGLEVEL_BITS 9
+#else
+# define MSTATUS_SD MSTATUS32_SD
+# define SSTATUS_SD SSTATUS32_SD
+# define RISCV_PGLEVEL_BITS 10
+# define MCAUSE_INT MCAUSE32_INT
+# define MCAUSE_CAUSE MCAUSE32_CAUSE
+#endif
+#define RISCV_PGSHIFT 12
+#define RISCV_PGSIZE BIT(RISCV_PGSHIFT)
+
+#ifndef __ASSEMBLER__
+
+#ifdef __GNUC__
+
+#define read_csr(reg) ({ unsigned long __tmp; \
+ asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \
+ __tmp; })
+
+#define write_csr(reg, val) ({ \
+if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \
+ asm volatile ("csrw " #reg ", %0" :: "i"(val)); \
+else \
+ asm volatile ("csrw " #reg ", %0" :: "r"(val)); })
+
+#define swap_csr(reg, val) ({ unsigned long __tmp; \
+if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \
+ asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "i"(val)); \
+else \
+ asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "r"(val)); \
+ __tmp; })
+
+#define set_csr(reg, bit) ({ unsigned long __tmp; \
+if (__builtin_constant_p(bit) && (unsigned long)(bit) < 32) \
+ asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
+else \
+ asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
+ __tmp; })
+
+#define clear_csr(reg, bit) ({ unsigned long __tmp; \
+if (__builtin_constant_p(bit) && (unsigned long)(bit) < 32) \
+ asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
+else \
+ asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
+ __tmp; })
+
+#define rdtime() read_csr(time)
+#define rdcycle() read_csr(cycle)
+#define rdinstret() read_csr(instret)
+
+#endif
+#endif
+#endif
+#endif
diff --git a/arch/riscv/include/asm/global_data.h
b/arch/riscv/include/asm/global_data.h
new file mode 100644
index 0000000..0cce98a
--- /dev/null
+++ b/arch/riscv/include/asm/global_data.h
@@ -0,0 +1,22 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, w...@denx.de.
+ *
+ * Copyright (c) 2017 Microsemi Corporation.
+ * Padmarao Begari, Microsemi Corporation <padmarao.beg...@microsemi.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 ("gp")
+
+#endif /* __ASM_GBL_DATA_H */
diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h
new file mode 100644
index 0000000..e7f63ed
--- /dev/null
+++ b/arch/riscv/include/asm/io.h
@@ -0,0 +1,494 @@
+/*
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ *
+ */
+#ifndef __ASM_RISCV_IO_H
+#define __ASM_RISCV_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+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)
+
+#ifdef CONFIG_ARCH_MAP_SYSMEM
+static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
+{
+ if (paddr < PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE)
+ paddr = paddr | 0x40000000;
+ return (void *)(uintptr_t)paddr;
+}
+
+static inline void *unmap_sysmem(const void *vaddr)
+{
+ phys_addr_t paddr = (phys_addr_t)vaddr;
+
+ paddr = paddr & ~0x40000000;
+ return (void *)(uintptr_t)paddr;
+}
+
+static inline phys_addr_t map_to_sysmem(const void *ptr)
+{
+ return (phys_addr_t)(uintptr_t)ptr;
+}
+#endif
+
+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) (*(unsigned char *)(a))
+#define __arch_getw(a) (*(unsigned short *)(a))
+#define __arch_getl(a) (*(unsigned int *)(a))
+#define __arch_getq(a) (*(unsigned long *)(a))
+
+#define __arch_putb(v, a) (*(unsigned char *)(a) = (v))
+#define __arch_putw(v, a) (*(unsigned short *)(a) = (v))
+#define __arch_putl(v, a) (*(unsigned int *)(a) = (v))
+#define __arch_putq(v, a) (*(unsigned long *)(a) = (v))
+
+#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_writeq(v, a) __arch_putq(v, a)
+
+#define __raw_readb(a) __arch_getb(a)
+#define __raw_readw(a) __arch_getw(a)
+#define __raw_readl(a) __arch_getl(a)
+#define __raw_readq(a) __arch_getq(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()
+
+static inline void writeb(u8 val, volatile void __iomem *addr)
+{
+ __iowmb();
+ __arch_putb(val, addr);
+}
+
+static inline void writew(u16 val, volatile void __iomem *addr)
+{
+ __iowmb();
+ __arch_putw(val, addr);
+}
+
+static inline void writel(u32 val, volatile void __iomem *addr)
+{
+ __iowmb();
+ __arch_putl(val, addr);
+}
+
+static inline void writeq(u64 val, volatile void __iomem *addr)
+{
+ __iowmb();
+ __arch_putq(val, addr);
+}
+
+static inline u8 readb(const volatile void __iomem *addr)
+{
+ u8 val;
+
+ val = __arch_getb(addr);
+ __iormb();
+ return val;
+}
+
+static inline u16 readw(const volatile void __iomem *addr)
+{
+ u16 val;
+
+ val = __arch_getw(addr);
+ __iormb();
+ return val;
+}
+
+static inline u32 readl(const volatile void __iomem *addr)
+{
+ u32 val;
+
+ val = __arch_getl(addr);
+ __iormb();
+ return val;
+}
+
+static inline u64 readq(const volatile void __iomem *addr)
+{
+ u32 val;
+
+ val = __arch_getq(addr);
+ __iormb();
+ return val;
+}
+
+/*
+ * The compiler seems to be incapable of optimising constants
+ * properly. Spell it out to the compiler in some cases.
+ * These are only valid for small values of "off" (< 1<<12)
+ */
+#define __raw_base_writeb(val, base, off) __arch_base_putb(val, base, off)
+#define __raw_base_writew(val, base, off) __arch_base_putw(val, base, off)
+#define __raw_base_writel(val, base, off) __arch_base_putl(val, base, off)
+
+#define __raw_base_readb(base, off) __arch_base_getb(base, off)
+#define __raw_base_readw(base, off) __arch_base_getw(base, off)
+#define __raw_base_readl(base, off) __arch_base_getl(base, off)
+
+#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)
+
+/*
+ * 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 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)
+
+/*
+ * Now, pick up the machine-defined IO definitions
+ * #include <asm/arch/io.h>
+ */
+
+/*
+ * IO port access primitives
+ * -------------------------
+ *
+ * The NDS32 doesn't have special IO access instructions just like ARM;
+ * all IO is memory mapped.
+ * Note that these are defined to perform little endian accesses
+ * only. Their primary purpose is to access PCI and ISA peripherals.
+ *
+ * Note that for a big endian machine, this implies that the following
+ * big endian mode connectivity is in place, as described by numerious
+ * ARM documents:
+ *
+ * PCI: D0-D7 D8-D15 D16-D23 D24-D31
+ * ARM: D24-D31 D16-D23 D8-D15 D0-D7
+ *
+ * The machine specific io.h include defines __io to translate an "IO"
+ * address to a memory address.
+ *
+ * Note that we prevent GCC re-ordering or caching values in expressions
+ * by introducing sequence points into the in*() definitions. Note that
+ * __raw_* do not guarantee this behaviour.
+ *
+ * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space.
+ */
+#ifdef __io
+#define outb(v, p) __raw_writeb(v, __io(p))
+#define outw(v, p) __raw_writew(cpu_to_le16(v), __io(p))
+#define outl(v, p) __raw_writel(cpu_to_le32(v), __io(p))
+
+#define inb(p) ({ unsigned int __v = __raw_readb(__io(p)); __v; })
+#define inw(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(__io(p))); __v; })
+#define inl(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(__io(p))); __v; })
+
+#define outsb(p, d, l) writesb(__io(p), d, l)
+#define outsw(p, d, l) writesw(__io(p), d, l)
+#define outsl(p, d, l) writesl(__io(p), d, l)
+
+#define insb(p, d, l) readsb(__io(p), d, l)
+#define insw(p, d, l) readsw(__io(p), d, l)
+#define insl(p, d, l) readsl(__io(p), d, l)
+
+static inline void readsb(unsigned int *addr, void *data, int bytelen)
+{
+ unsigned char *ptr;
+ unsigned char *ptr2;
+
+ ptr = (unsigned char *)addr;
+ ptr2 = (unsigned char *)data;
+
+ while (bytelen) {
+ *ptr2 = *ptr;
+ ptr2++;
+ bytelen--;
+ }
+}
+
+static inline void readsw(unsigned int *addr, void *data, int wordlen)
+{
+ unsigned short *ptr;
+ unsigned short *ptr2;
+
+ ptr = (unsigned short *)addr;
+ ptr2 = (unsigned short *)data;
+
+ while (wordlen) {
+ *ptr2 = *ptr;
+ ptr2++;
+ wordlen--;
+ }
+}
+
+static inline void readsl(unsigned int *addr, void *data, int longlen)
+{
+ unsigned int *ptr;
+ unsigned int *ptr2;
+
+ ptr = (unsigned int *)addr;
+ ptr2 = (unsigned int *)data;
+
+ while (longlen) {
+ *ptr2 = *ptr;
+ ptr2++;
+ longlen--;
+ }
+}
+
+static inline void writesb(unsigned int *addr, const void *data, int bytelen)
+{
+ unsigned char *ptr;
+ unsigned char *ptr2;
+
+ ptr = (unsigned char *)addr;
+ ptr2 = (unsigned char *)data;
+
+ while (bytelen) {
+ *ptr = *ptr2;
+ ptr2++;
+ bytelen--;
+ }
+}
+
+static inline void writesw(unsigned int *addr, const void *data, int wordlen)
+{
+ unsigned short *ptr;
+ unsigned short *ptr2;
+
+ ptr = (unsigned short *)addr;
+ ptr2 = (unsigned short *)data;
+
+ while (wordlen) {
+ *ptr = *ptr2;
+ ptr2++;
+ wordlen--;
+ }
+}
+
+static inline void writesl(unsigned int *addr, const void *data, int longlen)
+{
+ unsigned int *ptr;
+ unsigned int *ptr2;
+
+ ptr = (unsigned int *)addr;
+ ptr2 = (unsigned int *)data;
+
+ while (longlen) {
+ *ptr = *ptr2;
+ ptr2++;
+ longlen--;
+ }
+}
+#endif
+
+#define outb_p(val, port) outb((val), (port))
+#define outw_p(val, port) outw((val), (port))
+#define outl_p(val, port) outl((val), (port))
+#define inb_p(port) inb((port))
+#define inw_p(port) inw((port))
+#define inl_p(port) inl((port))
+
+#define outsb_p(port, from, len) outsb(port, from, len)
+#define outsw_p(port, from, len) outsw(port, from, len)
+#define outsl_p(port, from, len) outsl(port, from, len)
+#define insb_p(port, to, len) insb(port, to, len)
+#define insw_p(port, to, len) insw(port, to, len)
+#define insl_p(port, to, len) insl(port, to, len)
+
+/*
+ * DMA-consistent mapping functions. These allocate/free a region of
+ * uncached, unwrite-buffered mapped memory space for use with DMA
+ * devices. This is the "generic" version. The PCI specific version
+ * is in pci.h
+ */
+
+/*
+ * String version of IO memory access ops:
+ */
+
+/*
+ * If this architecture has PCI memory IO, then define the read/write
+ * macros. These should only be used with the cookie passed from
+ * ioremap.
+ */
+#ifdef __mem_pci
+
+#define readb(c) ({ unsigned int __v = \
+ __raw_readb(__mem_pci(c)); __v; })
+#define readw(c) ({ unsigned int __v = \
+ le16_to_cpu(__raw_readw(__mem_pci(c))); __v; })
+#define readl(c) ({ unsigned int __v = \
+ le32_to_cpu(__raw_readl(__mem_pci(c))); __v; })
+
+#define writeb(v, c) __raw_writeb(v, __mem_pci(c))
+#define writew(v, c) __raw_writew(cpu_to_le16(v), __mem_pci(c))
+#define writel(v, c) __raw_writel(cpu_to_le32(v), __mem_pci(c))
+
+#define memset_io(c, v, l) _memset_io(__mem_pci(c), (v), (l))
+#define memcpy_fromio(a, c, l) _memcpy_fromio((a), __mem_pci(c), (l))
+#define memcpy_toio(c, a, l) _memcpy_toio(__mem_pci(c), (a), (l))
+
+#define eth_io_copy_and_sum(s, c, l, b) \
+ eth_copy_and_sum((s), __mem_pci(c), (l), (b))
+
+static inline int
+check_signature(unsigned long io_addr, const unsigned char *signature,
+ int length)
+{
+ int retval = 0;
+
+ do {
+ if (readb(io_addr) != *signature)
+ goto out;
+ io_addr++;
+ signature++;
+ length--;
+ } while (length);
+ retval = 1;
+out:
+ return retval;
+}
+#endif /* __mem_pci */
+
+/*
+ * If this architecture has ISA IO, then define the isa_read/isa_write
+ * macros.
+ */
+#ifdef __mem_isa
+
+#define isa_readb(addr) __raw_readb(__mem_isa(addr))
+#define isa_readw(addr) __raw_readw(__mem_isa(addr))
+#define isa_readl(addr) __raw_readl(__mem_isa(addr))
+#define isa_writeb(val, addr) __raw_writeb(val, __mem_isa(addr))
+#define isa_writew(val, addr) __raw_writew(val, __mem_isa(addr))
+#define isa_writel(val, addr) __raw_writel(val, __mem_isa(addr))
+#define isa_memset_io(a, b, c) _memset_io(__mem_isa(a), (b), (c))
+#define isa_memcpy_fromio(a, b, c) _memcpy_fromio((a), __mem_isa(b), (c))
+#define isa_memcpy_toio(a, b, c) _memcpy_toio(__mem_isa((a)), (b), (c))
+
+#define isa_eth_io_copy_and_sum(a, b, c, d) \
+ eth_copy_and_sum((a), __mem_isa(b), (c), (d))
+
+static inline int
+isa_check_signature(unsigned long io_addr, const unsigned char *signature,
+ int length)
+{
+ int retval = 0;
+
+ do {
+ if (isa_readb(io_addr) != *signature)
+ goto out;
+ io_addr++;
+ signature++;
+ length--;
+ } while (length);
+ retval = 1;
+out:
+ return retval;
+}
+
+#else /* __mem_isa */
+
+#define isa_readb(addr) (__readwrite_bug("isa_readb"),
0)
+#define isa_readw(addr) (__readwrite_bug("isa_readw"),
0)
+#define isa_readl(addr) (__readwrite_bug("isa_readl"),
0)
+#define isa_writeb(val, addr) __readwrite_bug("isa_writeb")
+#define isa_writew(val, addr) __readwrite_bug("isa_writew")
+#define isa_writel(val, addr) __readwrite_bug("isa_writel")
+#define isa_memset_io(a, b, c) __readwrite_bug("isa_memset_io")
+#define isa_memcpy_fromio(a, b, c) __readwrite_bug("isa_memcpy_fromio")
+#define isa_memcpy_toio(a, b, c) __readwrite_bug("isa_memcpy_toio")
+
+#define isa_eth_io_copy_and_sum(a, b, c, d) \
+ __readwrite_bug("isa_eth_io_copy_and_sum")
+
+#define isa_check_signature(io, sig, len) (0)
+
+#endif /* __mem_isa */
+#endif /* __KERNEL__ */
+#endif /* __ASM_RISCV_IO_H */
diff --git a/arch/riscv/include/asm/linkage.h b/arch/riscv/include/asm/linkage.h
new file mode 100644
index 0000000..60d5317
--- /dev/null
+++ b/arch/riscv/include/asm/linkage.h
@@ -0,0 +1,12 @@
+/*
+ * U-Boot - linkage.h
+ *
+ * Copyright (c) 2005-2007 Analog Devices Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#endif
diff --git a/arch/riscv/include/asm/mach-types.h
b/arch/riscv/include/asm/mach-types.h
new file mode 100644
index 0000000..f70b407
--- /dev/null
+++ b/arch/riscv/include/asm/mach-types.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_RISCV_MACH_TYPE_H
+#define __ASM_RISCV_MACH_TYPE_H
+
+#ifndef __ASSEMBLY__
+/* The type of machine we're running on */
+extern unsigned int __machine_arch_type;
+#endif
+
+#define MACH_TYPE_AE250 1
+
+#ifdef CONFIG_ARCH_AE250
+# ifdef machine_arch_type
+# undef machine_arch_type
+# define machine_arch_type __machine_arch_type
+# else
+# define machine_arch_type MACH_TYPE_AE250
+# endif
+# define machine_is_ae250() (machine_arch_type == MACH_TYPE_AE250)
+#else
+# define machine_is_ae250() (1)
+#endif
+
+#endif /* __ASM_RISCV_MACH_TYPE_H */
diff --git a/arch/riscv/include/asm/posix_types.h
b/arch/riscv/include/asm/posix_types.h
new file mode 100644
index 0000000..6892b66
--- /dev/null
+++ b/arch/riscv/include/asm/posix_types.h
@@ -0,0 +1,89 @@
+/*
+ * linux/include/asm-arm/posix_types.h
+ *
+ * Copyright (C) 1996-1998 Russell King.
+ *
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Copyright (C) 2010 Shawn Lin (nobuh...@andestech.com)
+ * Copyright (C) 2011 Macpaul Lin (macp...@andestech.com)
+ * Copyright (C) 2017 Rick Chen (r...@andestech.com)
+ *
+ * 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
+ * 25-10-2017 Modified for arch RISCV
+ */
+#ifndef __ARCH_RISCV_POSIX_TYPES_H
+#define __ARCH_RISCV_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;
+#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;
+
+#ifdef __GNUC__
+typedef long long __kernel_loff_t;
+#endif
+
+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, fdsetp) \
+ (((fd_set *)fdsetp)->fds_bits[fd >> 5] |= (1 << (fd & 31)))
+
+#undef __FD_CLR
+#define __FD_CLR(fd, fdsetp) \
+ (((fd_set *)fdsetp)->fds_bits[fd >> 5] &= ~(1 << (fd & 31)))
+
+#undef __FD_ISSET
+#define __FD_ISSET(fd, fdsetp) \
+ ((((fd_set *)fdsetp)->fds_bits[fd >> 5] & (1 << (fd & 31))) != 0)
+
+#undef __FD_ZERO
+#define __FD_ZERO(fdsetp) \
+ (memset(fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
+
+#endif
+
+#endif /* __ARCH_RISCV_POSIX_TYPES_H */
diff --git a/arch/riscv/include/asm/processor.h
b/arch/riscv/include/asm/processor.h
new file mode 100644
index 0000000..fe35752
--- /dev/null
+++ b/arch/riscv/include/asm/processor.h
@@ -0,0 +1,26 @@
+/*
+ * linux/include/asm-arm/processor.h
+ *
+ * Copyright (C) 1995-2002 Russell King
+ *
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Copyright (C) 2010 Shawn Lin (nobuh...@andestech.com)
+ * Copyright (C) 2011 Macpaul Lin (macp...@andestech.com)
+ * Copyright (C) 2017 Rick Chen (r...@andestech.com)
+ *
+ * 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.
+ */
+
+#ifndef __ASM_RISCV_PROCESSOR_H
+#define __ASM_RISCV_PROCESSOR_H
+
+/**************************************************************
+ * CAUTION:
+ * - do not implement for RISCV Arch yet.
+ * - so far some files include /asm/processor.h, but
+ * no one uses the macros defined in this head file.
+ **************************************************************/
+
+#endif /* __ASM_RISCV_PROCESSOR_H */
diff --git a/arch/riscv/include/asm/ptrace.h b/arch/riscv/include/asm/ptrace.h
new file mode 100644
index 0000000..76d6869
--- /dev/null
+++ b/arch/riscv/include/asm/ptrace.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2017 Microsemi Corporation.
+ * Copyright (c) 2017 Padmarao Begari <padmarao.beg...@microsemi.com>
+ *
+ * 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.
+ */
+#ifndef __ASM_RISCV_PTRACE_H
+#define __ASM_RISCV_PTRACE_H
+
+struct pt_regs {
+ unsigned long sepc;
+ unsigned long ra;
+ unsigned long sp;
+ unsigned long gp;
+ unsigned long tp;
+ unsigned long t0;
+ unsigned long t1;
+ unsigned long t2;
+ unsigned long s0;
+ unsigned long s1;
+ unsigned long a0;
+ unsigned long a1;
+ unsigned long a2;
+ unsigned long a3;
+ unsigned long a4;
+ unsigned long a5;
+ unsigned long a6;
+ unsigned long a7;
+ unsigned long s2;
+ unsigned long s3;
+ unsigned long s4;
+ unsigned long s5;
+ unsigned long s6;
+ unsigned long s7;
+ unsigned long s8;
+ unsigned long s9;
+ unsigned long s10;
+ unsigned long s11;
+ unsigned long t3;
+ unsigned long t4;
+ unsigned long t5;
+ unsigned long t6;
+ /* Supervisor CSRs */
+ unsigned long sstatus;
+ unsigned long sbadaddr;
+ unsigned long scause;
+};
+
+#ifdef CONFIG_64BIT
+#define REG_FMT "%016lx"
+#else
+#define REG_FMT "%08lx"
+#endif
+
+#define user_mode(regs) (((regs)->sstatus & SR_PS) == 0)
+
+/* Helpers for working with the instruction pointer */
+#define GET_IP(regs) ((regs)->sepc)
+#define SET_IP(regs, val) (GET_IP(regs) = (val))
+
+static inline unsigned long instruction_pointer(struct pt_regs *regs)
+{
+ return GET_IP(regs);
+}
+
+static inline void instruction_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ SET_IP(regs, val);
+}
+
+#define profile_pc(regs) instruction_pointer(regs)
+
+/* Helpers for working with the user stack pointer */
+#define GET_USP(regs) ((regs)->sp)
+#define SET_USP(regs, val) (GET_USP(regs) = (val))
+
+static inline unsigned long user_stack_pointer(struct pt_regs *regs)
+{
+ return GET_USP(regs);
+}
+
+static inline void user_stack_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ SET_USP(regs, val);
+}
+
+/* Helpers for working with the frame pointer */
+#define GET_FP(regs) ((regs)->s0)
+#define SET_FP(regs, val) (GET_FP(regs) = (val))
+
+static inline unsigned long frame_pointer(struct pt_regs *regs)
+{
+ return GET_FP(regs);
+}
+
+static inline void frame_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ SET_FP(regs, val);
+}
+
+#endif /* __ASM_RISCV_PTRACE_H */
diff --git a/arch/riscv/include/asm/sections.h
b/arch/riscv/include/asm/sections.h
new file mode 100644
index 0000000..9faa099
--- /dev/null
+++ b/arch/riscv/include/asm/sections.h
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_RISCV_SECTIONS_H
+#define __ASM_RISCV_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif
diff --git a/arch/riscv/include/asm/setup.h b/arch/riscv/include/asm/setup.h
new file mode 100644
index 0000000..731b0d9
--- /dev/null
+++ b/arch/riscv/include/asm/setup.h
@@ -0,0 +1,191 @@
+/*
+ * linux/arch/nds32/include/asm/setup.h
+ *
+ * Copyright (C) 1997-1999 Russell King
+ * Copyright (C) 2008 Andes Technology Corporation
+ * Copyright (C) 2013 Ken Kuo (ken_...@andestech.com)
+ * Copyright (C) 2017 Rick Chen (r...@andestech.com)
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ *
+ * Structure passed to kernel to tell it about the
+ * hardware it's running on. See Documentation/arm/Setup
+ * for more info.
+ */
+#ifndef __RISCV_SETUP_H
+#define __RISCV_SETUP_H
+
+#define COMMAND_LINE_SIZE 256
+
+/* The list ends with an ATAG_NONE node. */
+#define ATAG_NONE 0x00000000
+
+struct tag_header {
+ u32 size;
+ u32 tag;
+};
+
+/* The list must start with an ATAG_CORE node */
+#define ATAG_CORE 0x54410001
+
+struct tag_core {
+ u32 flags; /* bit 0 = read-only */
+ u32 pagesize;
+ u32 rootdev;
+};
+
+/* it is allowed to have multiple ATAG_MEM nodes */
+#define ATAG_MEM 0x54410002
+
+struct tag_mem32 {
+ u32 size;
+ u32 start; /* physical start address */
+};
+
+/* VGA text type displays */
+#define ATAG_VIDEOTEXT 0x54410003
+
+struct tag_videotext {
+ u8 x;
+ u8 y;
+ u16 video_page;
+ u8 video_mode;
+ u8 video_cols;
+ u16 video_ega_bx;
+ u8 video_lines;
+ u8 video_isvga;
+ u16 video_points;
+};
+
+/* describes how the ramdisk will be used in kernel */
+#define ATAG_RAMDISK 0x54410004
+
+struct tag_ramdisk {
+ u32 flags; /* bit 0 = load, bit 1 = prompt */
+ u32 size; /* decompressed ramdisk size in _kilo_ bytes */
+ u32 start; /* starting block of floppy-based RAM disk image */
+};
+
+/*
+ * this one accidentally used virtual addresses - as such,
+ * it's deprecated.
+ * describes where the compressed ramdisk image lives (virtual address)
+ */
+#define ATAG_INITRD 0x54410005
+
+/* describes where the compressed ramdisk image lives (physical address) */
+#define ATAG_INITRD2 0x54420005
+
+struct tag_initrd {
+ u32 start; /* physical start address */
+ u32 size; /* size of compressed ramdisk image in bytes */
+};
+
+/* board serial number. "64 bits should be enough for everybody" */
+#define ATAG_SERIAL 0x54410006
+
+struct tag_serialnr {
+ u32 low;
+ u32 high;
+};
+
+/* board revision */
+#define ATAG_REVISION 0x54410007
+
+struct tag_revision {
+ u32 rev;
+};
+
+/* initial values for vesafb-type framebuffers. see struct screen_info
+ * in include/linux/tty.h
+ */
+#define ATAG_VIDEOLFB 0x54410008
+
+struct tag_videolfb {
+ u16 lfb_width;
+ u16 lfb_height;
+ u16 lfb_depth;
+ u16 lfb_linelength;
+ u32 lfb_base;
+ u32 lfb_size;
+ u8 red_size;
+ u8 red_pos;
+ u8 green_size;
+ u8 green_pos;
+ u8 blue_size;
+ u8 blue_pos;
+ u8 rsvd_size;
+ u8 rsvd_pos;
+};
+
+/* command line: \0 terminated string */
+#define ATAG_CMDLINE 0x54410009
+
+struct tag_cmdline {
+ char cmdline[COMMAND_LINE_SIZE];
+};
+
+struct tag {
+ struct tag_header hdr;
+ union {
+ struct tag_core core;
+ struct tag_mem32 mem;
+ struct tag_videotext videotext;
+ struct tag_ramdisk ramdisk;
+ struct tag_initrd initrd;
+ struct tag_serialnr serialnr;
+ struct tag_revision revision;
+ struct tag_videolfb videolfb;
+ struct tag_cmdline cmdline;
+ } u;
+};
+
+struct tagtable {
+ u32 tag;
+ int (*parse)(const struct tag *);
+};
+
+#define tag_member_present(tag, member) \
+ ((unsigned long)(&((struct tag *)0L)->member + 1) \
+ <= (tag)->hdr.size * 4)
+
+#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size))
+#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
+
+#define for_each_tag(t, base) \
+ for (t = base; t->hdr.size; t = tag_next(t))
+
+#ifdef __KERNEL__
+
+#define __tag __used __attribute__((__section__(".taglist")))
+#define __tagtable(tag, fn) \
+static struct tagtable __tagtable_##fn __tag = { tag, fn }
+
+/*
+ * Memory map description
+ */
+#define NR_BANKS 8
+
+struct meminfo {
+ int nr_banks;
+ struct {
+ unsigned long start;
+ unsigned long size;
+ int node;
+ } bank[NR_BANKS];
+};
+
+/*
+ * Early command line parameters.
+ */
+struct early_params {
+ const char *arg;
+ void (*fn)(char **p);
+};
+
+#define __early_param(name, fn) \
+static struct early_params __early_##fn __used \
+__attribute__((__section__("__early_param"))) = { name, fn }
+
+#endif
+#endif
diff --git a/arch/riscv/include/asm/string.h b/arch/riscv/include/asm/string.h
new file mode 100644
index 0000000..038cdae
--- /dev/null
+++ b/arch/riscv/include/asm/string.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Copyright (C) 2010 Shawn Lin (nobuh...@andestech.com)
+ * Copyright (C) 2011 Macpaul Lin (macp...@andestech.com)
+ * Copyright (C) 2017 Rick Chen (r...@andestech.com)
+ *
+ * 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.
+ */
+
+#ifndef __ASM_RISCV_STRING_H
+#define __ASM_RISCV_STRING_H
+
+/*
+ * We don't do inline string functions, since the
+ * optimised inline asm versions are not small.
+ */
+
+#undef __HAVE_ARCH_STRRCHR
+#undef __HAVE_ARCH_STRCHR
+#undef __HAVE_ARCH_MEMCPY
+#undef __HAVE_ARCH_MEMMOVE
+#undef __HAVE_ARCH_MEMCHR
+#undef __HAVE_ARCH_MEMZERO
+#undef __HAVE_ARCH_MEMSET
+
+#ifdef CONFIG_MARCO_MEMSET
+#define memset(p, v, n)
\
+ ({ \
+ if ((n) != 0) { \
+ if (__builtin_constant_p((v)) && (v) == 0) \
+ __memzero((p), (n)); \
+ else \
+ memset((p), (v), (n)); \
+ } \
+ (p); \
+ })
+
+#define memzero(p, n) ({ if ((n) != 0) __memzero((p), (n)); (p); })
+#endif
+
+#endif /* __ASM_RISCV_STRING_H */
diff --git a/arch/riscv/include/asm/system.h b/arch/riscv/include/asm/system.h
new file mode 100644
index 0000000..443a300
--- /dev/null
+++ b/arch/riscv/include/asm/system.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_RISCV_SYSTEM_H
+#define __ASM_RISCV_SYSTEM_H
+
+/*
+ * Interrupt configuring macros.
+ *
+ * TODO
+ *
+ */
+
+#endif /* __ASM_RISCV_SYSTEM_H */
diff --git a/arch/riscv/include/asm/types.h b/arch/riscv/include/asm/types.h
new file mode 100644
index 0000000..9797206
--- /dev/null
+++ b/arch/riscv/include/asm/types.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Copyright (C) 2010 Shawn Lin (nobuh...@andestech.com)
+ * Copyright (C) 2011 Macpaul Lin (macp...@andestech.com)
+ * Copyright (C) 2017 Rick Chen (r...@andestech.com)
+ *
+ * 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.
+ */
+
+#ifndef __ASM_RISCV_TYPES_H
+#define __ASM_RISCV_TYPES_H
+
+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__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+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
+
+#include <stddef.h>
+
+typedef u32 dma_addr_t;
+
+typedef unsigned long phys_addr_t;
+typedef unsigned long phys_size_t;
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/arch/riscv/include/asm/u-boot-riscv.h
b/arch/riscv/include/asm/u-boot-riscv.h
new file mode 100644
index 0000000..18099cd
--- /dev/null
+++ b/arch/riscv/include/asm/u-boot-riscv.h
@@ -0,0 +1,21 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroe...@sysgo.de>
+ *
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _U_BOOT_RISCV_H_
+#define _U_BOOT_RISCV_H_ 1
+
+/* cpu/.../cpu.c */
+int cleanup_before_linux(void);
+
+/* board/.../... */
+int board_init(void);
+
+#endif /* _U_BOOT_RISCV_H_ */
diff --git a/arch/riscv/include/asm/u-boot.h b/arch/riscv/include/asm/u-boot.h
new file mode 100644
index 0000000..ddf7a63
--- /dev/null
+++ b/arch/riscv/include/asm/u-boot.h
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroe...@sysgo.de>
+ *
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <r...@andestech.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_ 1
+
+#include <asm/u-boot-riscv.h>
+
+#include <environment.h>
+
+typedef struct bd_info {
+ unsigned long bi_arch_number; /* unique id for this board */
+ unsigned long bi_boot_params; /* where this board expects params */
+ unsigned long bi_memstart; /* start of DRAM memory */
+ unsigned long bi_memsize; /* size of DRAM memory in bytes */
+ unsigned long bi_flashstart; /* start of FLASH memory */
+ unsigned long bi_flashsize; /* size of FLASH memory */
+ unsigned long bi_flashoffset; /* reserved area for startup monitor */
+ unsigned char bi_enetaddr[6];
+
+ 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_RISCV
+
+#endif /* _U_BOOT_H_ */
diff --git a/arch/riscv/include/asm/unaligned.h
b/arch/riscv/include/asm/unaligned.h
new file mode 100644
index 0000000..6cecbbb
--- /dev/null
+++ b/arch/riscv/include/asm/unaligned.h
@@ -0,0 +1 @@
+#include <asm-generic/unaligned.h>
--
1.7.1
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