[U-Boot] [PATVH v7 07/14] mips: Implement {in, out}_{le, be}_{16, 32, 64} and {in, out}_8
Mario Six
mario.six at gdsys.cc
Fri Sep 21 07:50:59 UTC 2018
MIPS is the only architecture currently supported by U-Boot that does
not implement any of the in/out register access functions.
To have a interface that is useable across architectures, add the
functions to the MIPS architecture (implemented using the __raw_write
and __raw_read functions).
Signed-off-by: Mario Six <mario.six at gdsys.cc>
---
v6 -> v7:
No changes
v5 -> v6:
New in v6
---
arch/mips/include/asm/io.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 957442effd..7c40e415c7 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -547,6 +547,28 @@ __BUILD_CLRSETBITS(bwlq, sfx, end, type)
#define __to_cpu(v) (v)
#define cpu_to__(v) (v)
+#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_le64(a, v) out_arch(q, le64, a, v)
+#define out_le32(a, v) out_arch(l, le32, a, v)
+#define out_le16(a, v) out_arch(w, le16, a, v)
+
+#define in_le64(a) in_arch(q, le64, a)
+#define in_le32(a) in_arch(l, le32, a)
+#define in_le16(a) in_arch(w, le16, a)
+
+#define out_be64(a, v) out_arch(q, be64, a, v)
+#define out_be32(a, v) out_arch(l, be32, a, v)
+#define out_be16(a, v) out_arch(w, be16, a, v)
+
+#define in_be64(a) in_arch(q, be64, a)
+#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)
+
BUILD_CLRSETBITS(b, 8, _, u8)
BUILD_CLRSETBITS(w, le16, le16, u16)
BUILD_CLRSETBITS(w, be16, be16, u16)
--
2.16.4
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