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From 5c0a443ba336f10a8db6a99c769aa84ad37ed4d2 Mon Sep 17 00:00:00 2001
From: Vadim Kochan <vadim4j@gmail.com>
Date: Wed, 20 Feb 2019 02:48:43 +0200
Subject: [PATCH] meminfo: Access to io memory via pointers
The main reason for this is to be able compile with musl library,
because there is no support of inx/outx functions for ARM platform.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
---
meminfo.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/meminfo.c b/meminfo.c
index 0b0ff23..7d9f10f 100644
--- a/meminfo.c
+++ b/meminfo.c
@@ -22,7 +22,6 @@
#include <sys/mman.h>
#include <stdint.h>
#include <errno.h>
-#include <sys/io.h>
#include <stdbool.h>
#include "common.h"
@@ -74,24 +73,26 @@ static enum sunxi_soc_version soc_version;
unsigned int
sunxi_io_read(void *base, int offset)
{
- return inl((unsigned long) (base + offset));
+ unsigned long port = (unsigned long) (base + offset);
+ return *((volatile unsigned long *) port);
}
void
sunxi_io_write(void *base, int offset, unsigned int value)
{
- outl(value, (unsigned long) (base + offset));
+ unsigned long port = (unsigned long) (base + offset);
+ *((volatile unsigned long *) port) = value;
}
void
sunxi_io_mask(void *base, int offset, unsigned int value, unsigned int mask)
{
- unsigned int tmp = inl((unsigned long) (base + offset));
+ unsigned int tmp = sunxi_io_read(base, offset);
tmp &= ~mask;
tmp |= value & mask;
- outl(tmp, (unsigned long) (base + offset));
+ sunxi_io_write(base, offset, tmp);
}
--
2.14.1
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