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-rw-r--r--arch/sh/Kconfig43
-rw-r--r--arch/sh/include/asm/cpu_sh4.h25
-rw-r--r--arch/sh/include/asm/system.h23
-rw-r--r--arch/sh/include/asm/unaligned-sh4a.h258
-rw-r--r--arch/sh/include/asm/unaligned.h7
5 files changed, 1 insertions, 355 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 91002a9be0..7836869c55 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -4,51 +4,14 @@ menu "SuperH architecture"
config CPU_SH4
bool
-config CPU_SH4A
- bool
- select CPU_SH4
-
-config SH_32BIT
- bool "32bit mode"
- depends on CPU_SH4A
- default n
- help
- SH4A has 2 physical memory maps. This use 32bit mode.
- And this is board specific. Please check your board if you
- want to use this.
-
choice
prompt "Target select"
optional
-config TARGET_MIGOR
- bool "Migo-R"
- select CPU_SH4
-
config TARGET_R2DPLUS
bool "Renesas R2D-PLUS"
select CPU_SH4
-config TARGET_R7780MP
- bool "R7780MP board"
- select CPU_SH4A
-
-config TARGET_SH7752EVB
- bool "SH7752EVB"
- select CPU_SH4A
-
-config TARGET_SH7753EVB
- bool "SH7753EVB"
- select CPU_SH4
-
-config TARGET_SH7757LCR
- bool "SH7757LCR"
- select CPU_SH4A
-
-config TARGET_SH7763RDP
- bool "SH7763RDP"
- select CPU_SH4
-
endchoice
config SYS_ARCH
@@ -59,12 +22,6 @@ config SYS_CPU
source "arch/sh/lib/Kconfig"
-source "board/renesas/MigoR/Kconfig"
source "board/renesas/r2dplus/Kconfig"
-source "board/renesas/r7780mp/Kconfig"
-source "board/renesas/sh7752evb/Kconfig"
-source "board/renesas/sh7753evb/Kconfig"
-source "board/renesas/sh7757lcr/Kconfig"
-source "board/renesas/sh7763rdp/Kconfig"
endmenu
diff --git a/arch/sh/include/asm/cpu_sh4.h b/arch/sh/include/asm/cpu_sh4.h
index 5fc9c962d8..ed7c243b3b 100644
--- a/arch/sh/include/asm/cpu_sh4.h
+++ b/arch/sh/include/asm/cpu_sh4.h
@@ -46,29 +46,4 @@
# error "Unknown SH4 variant"
#endif
-#if defined(CONFIG_SH_32BIT)
-#define PMB_ADDR_ARRAY 0xf6100000
-#define PMB_ADDR_ENTRY 8
-#define PMB_VPN 24
-
-#define PMB_DATA_ARRAY 0xf7100000
-#define PMB_DATA_ENTRY 8
-#define PMB_PPN 24
-#define PMB_UB 9 /* Buffered write */
-#define PMB_V 8 /* Valid */
-#define PMB_SZ1 7 /* Page size (upper bit) */
-#define PMB_SZ0 4 /* Page size (lower bit) */
-#define PMB_C 3 /* Cacheability */
-#define PMB_WT 0 /* Write-through */
-
-#define PMB_ADDR_BASE(entry) (PMB_ADDR_ARRAY + (entry << PMB_ADDR_ENTRY))
-#define PMB_DATA_BASE(entry) (PMB_DATA_ARRAY + (entry << PMB_DATA_ENTRY))
-#define mk_pmb_addr_val(vpn) ((vpn << PMB_VPN))
-#define mk_pmb_data_val(ppn, ub, v, sz1, sz0, c, wt) \
- ((ppn << PMB_PPN) | (ub << PMB_UB) | \
- (v << PMB_V) | (sz1 << PMB_SZ1) | \
- (sz0 << PMB_SZ0) | (c << PMB_C) | \
- (wt << PMB_WT))
-#endif
-
#endif /* _ASM_CPU_SH4_H_ */
diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index 24b5ce8e30..ccc79b3c91 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -70,18 +70,6 @@ static inline void sched_cacheflush(void)
{
}
-#ifdef CONFIG_CPU_SH4A
-#define __icbi() \
-{ \
- unsigned long __addr; \
- __addr = 0xa8000000; \
- __asm__ __volatile__( \
- "icbi %0\n\t" \
- : /* no output */ \
- : "m" (__m(__addr))); \
-}
-#endif
-
static inline unsigned long tas(volatile int *m)
{
unsigned long retval;
@@ -100,25 +88,14 @@ static inline unsigned long tas(volatile int *m)
* effect. On newer cores (like the sh4a and sh5) this is accomplished
* with icbi.
*
- * Also note that on sh4a in the icbi case we can forego a synco for the
- * write barrier, as it's not necessary for control registers.
- *
* Historically we have only done this type of barrier for the MMUCR, but
* it's also necessary for the CCR, so we make it generic here instead.
*/
-#ifdef CONFIG_CPU_SH4A
-#define mb() __asm__ __volatile__ ("synco": : :"memory")
-#define rmb() mb()
-#define wmb() __asm__ __volatile__ ("synco": : :"memory")
-#define ctrl_barrier() __icbi()
-#define read_barrier_depends() do { } while(0)
-#else
#define mb() __asm__ __volatile__ ("": : :"memory")
#define rmb() mb()
#define wmb() __asm__ __volatile__ ("": : :"memory")
#define ctrl_barrier() __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop")
#define read_barrier_depends() do { } while(0)
-#endif
#ifdef CONFIG_SMP
#define smp_mb() mb()
diff --git a/arch/sh/include/asm/unaligned-sh4a.h b/arch/sh/include/asm/unaligned-sh4a.h
deleted file mode 100644
index 9f4dd252c9..0000000000
--- a/arch/sh/include/asm/unaligned-sh4a.h
+++ /dev/null
@@ -1,258 +0,0 @@
-#ifndef __ASM_SH_UNALIGNED_SH4A_H
-#define __ASM_SH_UNALIGNED_SH4A_H
-
-/*
- * SH-4A has support for unaligned 32-bit loads, and 32-bit loads only.
- * Support for 64-bit accesses are done through shifting and masking
- * relative to the endianness. Unaligned stores are not supported by the
- * instruction encoding, so these continue to use the packed
- * struct.
- *
- * The same note as with the movli.l/movco.l pair applies here, as long
- * as the load is gauranteed to be inlined, nothing else will hook in to
- * r0 and we get the return value for free.
- *
- * NOTE: Due to the fact we require r0 encoding, care should be taken to
- * avoid mixing these heavily with other r0 consumers, such as the atomic
- * ops. Failure to adhere to this can result in the compiler running out
- * of spill registers and blowing up when building at low optimization
- * levels. See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34777.
- */
-#include <linux/types.h>
-#include <asm/byteorder.h>
-
-static __always_inline u32 __get_unaligned_cpu32(const u8 *p)
-{
- unsigned long unaligned;
-
- __asm__ __volatile__ (
- "movua.l @%1, %0\n\t"
- : "=z" (unaligned)
- : "r" (p)
- );
-
- return unaligned;
-}
-
-struct __una_u16 { u16 x __attribute__((packed)); };
-struct __una_u32 { u32 x __attribute__((packed)); };
-struct __una_u64 { u64 x __attribute__((packed)); };
-
-static inline u16 __get_unaligned_cpu16(const u8 *p)
-{
-#ifdef __LITTLE_ENDIAN
- return p[0] | p[1] << 8;
-#else
- return p[0] << 8 | p[1];
-#endif
-}
-
-/*
- * Even though movua.l supports auto-increment on the read side, it can
- * only store to r0 due to instruction encoding constraints, so just let
- * the compiler sort it out on its own.
- */
-static inline u64 __get_unaligned_cpu64(const u8 *p)
-{
-#ifdef __LITTLE_ENDIAN
- return (u64)__get_unaligned_cpu32(p + 4) << 32 |
- __get_unaligned_cpu32(p);
-#else
- return (u64)__get_unaligned_cpu32(p) << 32 |
- __get_unaligned_cpu32(p + 4);
-#endif
-}
-
-static inline u16 get_unaligned_le16(const void *p)
-{
- return le16_to_cpu(__get_unaligned_cpu16(p));
-}
-
-static inline u32 get_unaligned_le32(const void *p)
-{
- return le32_to_cpu(__get_unaligned_cpu32(p));
-}
-
-static inline u64 get_unaligned_le64(const void *p)
-{
- return le64_to_cpu(__get_unaligned_cpu64(p));
-}
-
-static inline u16 get_unaligned_be16(const void *p)
-{
- return be16_to_cpu(__get_unaligned_cpu16(p));
-}
-
-static inline u32 get_unaligned_be32(const void *p)
-{
- return be32_to_cpu(__get_unaligned_cpu32(p));
-}
-
-static inline u64 get_unaligned_be64(const void *p)
-{
- return be64_to_cpu(__get_unaligned_cpu64(p));
-}
-
-static inline void __put_le16_noalign(u8 *p, u16 val)
-{
- *p++ = val;
- *p++ = val >> 8;
-}
-
-static inline void __put_le32_noalign(u8 *p, u32 val)
-{
- __put_le16_noalign(p, val);
- __put_le16_noalign(p + 2, val >> 16);
-}
-
-static inline void __put_le64_noalign(u8 *p, u64 val)
-{
- __put_le32_noalign(p, val);
- __put_le32_noalign(p + 4, val >> 32);
-}
-
-static inline void __put_be16_noalign(u8 *p, u16 val)
-{
- *p++ = val >> 8;
- *p++ = val;
-}
-
-static inline void __put_be32_noalign(u8 *p, u32 val)
-{
- __put_be16_noalign(p, val >> 16);
- __put_be16_noalign(p + 2, val);
-}
-
-static inline void __put_be64_noalign(u8 *p, u64 val)
-{
- __put_be32_noalign(p, val >> 32);
- __put_be32_noalign(p + 4, val);
-}
-
-static inline void put_unaligned_le16(u16 val, void *p)
-{
-#ifdef __LITTLE_ENDIAN
- ((struct __una_u16 *)p)->x = val;
-#else
- __put_le16_noalign(p, val);
-#endif
-}
-
-static inline void put_unaligned_le32(u32 val, void *p)
-{
-#ifdef __LITTLE_ENDIAN
- ((struct __una_u32 *)p)->x = val;
-#else
- __put_le32_noalign(p, val);
-#endif
-}
-
-static inline void put_unaligned_le64(u64 val, void *p)
-{
-#ifdef __LITTLE_ENDIAN
- ((struct __una_u64 *)p)->x = val;
-#else
- __put_le64_noalign(p, val);
-#endif
-}
-
-static inline void put_unaligned_be16(u16 val, void *p)
-{
-#ifdef __BIG_ENDIAN
- ((struct __una_u16 *)p)->x = val;
-#else
- __put_be16_noalign(p, val);
-#endif
-}
-
-static inline void put_unaligned_be32(u32 val, void *p)
-{
-#ifdef __BIG_ENDIAN
- ((struct __una_u32 *)p)->x = val;
-#else
- __put_be32_noalign(p, val);
-#endif
-}
-
-static inline void put_unaligned_be64(u64 val, void *p)
-{
-#ifdef __BIG_ENDIAN
- ((struct __una_u64 *)p)->x = val;
-#else
- __put_be64_noalign(p, val);
-#endif
-}
-
-/*
- * Cause a link-time error if we try an unaligned access other than
- * 1,2,4 or 8 bytes long
- */
-extern void __bad_unaligned_access_size(void);
-
-#define __get_unaligned_le(ptr) ((__force typeof(*(ptr)))({ \
- __builtin_choose_expr(sizeof(*(ptr)) == 1, *(ptr), \
- __builtin_choose_expr(sizeof(*(ptr)) == 2, get_unaligned_le16((ptr)), \
- __builtin_choose_expr(sizeof(*(ptr)) == 4, get_unaligned_le32((ptr)), \
- __builtin_choose_expr(sizeof(*(ptr)) == 8, get_unaligned_le64((ptr)), \
- __bad_unaligned_access_size())))); \
- }))
-
-#define __get_unaligned_be(ptr) ((__force typeof(*(ptr)))({ \
- __builtin_choose_expr(sizeof(*(ptr)) == 1, *(ptr), \
- __builtin_choose_expr(sizeof(*(ptr)) == 2, get_unaligned_be16((ptr)), \
- __builtin_choose_expr(sizeof(*(ptr)) == 4, get_unaligned_be32((ptr)), \
- __builtin_choose_expr(sizeof(*(ptr)) == 8, get_unaligned_be64((ptr)), \
- __bad_unaligned_access_size())))); \
- }))
-
-#define __put_unaligned_le(val, ptr) ({ \
- void *__gu_p = (ptr); \
- switch (sizeof(*(ptr))) { \
- case 1: \
- *(u8 *)__gu_p = (__force u8)(val); \
- break; \
- case 2: \
- put_unaligned_le16((__force u16)(val), __gu_p); \
- break; \
- case 4: \
- put_unaligned_le32((__force u32)(val), __gu_p); \
- break; \
- case 8: \
- put_unaligned_le64((__force u64)(val), __gu_p); \
- break; \
- default: \
- __bad_unaligned_access_size(); \
- break; \
- } \
- (void)0; })
-
-#define __put_unaligned_be(val, ptr) ({ \
- void *__gu_p = (ptr); \
- switch (sizeof(*(ptr))) { \
- case 1: \
- *(u8 *)__gu_p = (__force u8)(val); \
- break; \
- case 2: \
- put_unaligned_be16((__force u16)(val), __gu_p); \
- break; \
- case 4: \
- put_unaligned_be32((__force u32)(val), __gu_p); \
- break; \
- case 8: \
- put_unaligned_be64((__force u64)(val), __gu_p); \
- break; \
- default: \
- __bad_unaligned_access_size(); \
- break; \
- } \
- (void)0; })
-
-#ifdef __LITTLE_ENDIAN
-# define get_unaligned __get_unaligned_le
-# define put_unaligned __put_unaligned_le
-#else
-# define get_unaligned __get_unaligned_be
-# define put_unaligned __put_unaligned_be
-#endif
-
-#endif /* __ASM_SH_UNALIGNED_SH4A_H */
diff --git a/arch/sh/include/asm/unaligned.h b/arch/sh/include/asm/unaligned.h
index 06096eeac5..5acf081962 100644
--- a/arch/sh/include/asm/unaligned.h
+++ b/arch/sh/include/asm/unaligned.h
@@ -3,11 +3,7 @@
/* Copy from linux-kernel. */
-#ifdef CONFIG_CPU_SH4A
-/* SH-4A can handle unaligned loads in a relatively neutered fashion. */
-#include <asm/unaligned-sh4a.h>
-#else
-/* Otherwise, SH can't handle unaligned accesses. */
+/* Other than SH4A, SH can't handle unaligned accesses. */
#include <linux/compiler.h>
#if defined(__BIG_ENDIAN__)
#define get_unaligned __get_unaligned_be
@@ -20,6 +16,5 @@
#include <linux/unaligned/le_byteshift.h>
#include <linux/unaligned/be_byteshift.h>
#include <linux/unaligned/generic.h>
-#endif
#endif /* _ASM_SH_UNALIGNED_H */
generated by cgit (git 2.34.1) at 2025-01-30 21:49:30 +0000