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microblaze: Add support for little/big endian in/out api's

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Add read/write memory utilities for 16 and 32 bits. Add these
api's for both little and big endian systems similar to arm
architecture.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
T Karthik Reddy 2020-08-20 22:35:33 -06:00 committed by Michal Simek
parent 1a005b4ae4
commit 78d844c6ac
1 changed files with 16 additions and 6 deletions
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22
arch/microblaze/include/asm/io.h
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@ -50,14 +50,24 @@
#define outw(x, addr) ((void)writew(x, addr))
#define outl(x, addr) ((void)writel(x, addr))
/* Some #definitions to keep strange Xilinx code happy */
#define in_8(addr) readb(addr)
#define in_be16(addr) readw(addr)
#define in_be32(addr) readl(addr)
#define out_arch(type, endian, addr, x) \
__raw_write##type(cpu_to_##endian(x), addr)
#define in_arch(type, endian, addr) \
endian##_to_cpu(__raw_read##type(addr))
#define out_le16(addr, x) out_arch(w, le16, addr, x)
#define out_le32(addr, x) out_arch(l, le32, addr, x)
#define in_le16(addr) in_arch(w, le16, addr)
#define in_le32(addr) in_arch(l, le32, addr)
#define in_8(addr) readb(addr)
#define in_be16(addr) in_arch(w, be16, addr)
#define in_be32(addr) in_arch(l, be32, addr)
#define out_8(addr, x) outb(x, addr)
#define out_be16(addr, x) outw(x, addr)
#define out_be32(addr, x) outl(x, addr)
#define out_be16(addr, x) out_arch(w, be16, addr, x)
#define out_be32(addr, x) out_arch(l, be32, addr, x)
#define inb_p(port) inb((port))
#define outb_p(val, port) outb((val), (port))