sh: Prevent 64-bit pgprot clobbering across ioremap implementations.
Presently 'flags' gets passed around a lot between the various ioremap
helpers and implementations, which is only 32-bits. In the X2TLB case
we use 64-bit pgprots which presently results in the upper 32bits being
chopped off (which handily include our read/write/exec permissions).
As such, we convert everything internally to using pgprot_t directly and
simply convert over with pgprot_val() where needed. With this in place,
transparent fixmap utilization for early ioremap works as expected.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index 511de38..fe7e686 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -21,6 +21,7 @@
#include <linux/i2c-algo-pca.h>
#include <linux/usb/r8a66597.h>
#include <linux/irq.h>
+#include <linux/io.h>
#include <linux/clk.h>
#include <linux/errno.h>
#include <mach/sh7785lcr.h>
@@ -332,15 +333,14 @@
pm_power_off = sh7785lcr_power_off;
/* sm501 DRAM configuration */
- sm501_reg = ioremap_fixed(SM107_REG_ADDR, SM501_DRAM_CONTROL,
- PAGE_KERNEL);
+ sm501_reg = ioremap_nocache(SM107_REG_ADDR, SM501_DRAM_CONTROL);
if (!sm501_reg) {
printk(KERN_ERR "%s: ioremap error.\n", __func__);
return;
}
writel(0x000307c2, sm501_reg + SM501_DRAM_CONTROL);
- iounmap_fixed(sm501_reg);
+ iounmap(sm501_reg);
}
/* Return the board specific boot mode pin configuration */