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-rw-r--r--arch/arm/mach-omap1/include/mach/hardware.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/include/mach/hardware.h b/arch/arm/mach-omap1/include/mach/hardware.h
index a3f6287..01e35fa 100644
--- a/arch/arm/mach-omap1/include/mach/hardware.h
+++ b/arch/arm/mach-omap1/include/mach/hardware.h
@@ -2,4 +2,40 @@
* arch/arm/mach-omap1/include/mach/hardware.h
*/
+#ifndef __MACH_HARDWARE_H
+#define __MACH_HARDWARE_H
+
+#ifndef __ASSEMBLER__
+/*
+ * NOTE: Please use ioremap + __raw_read/write where possible instead of these
+ */
+extern u8 omap_readb(u32 pa);
+extern u16 omap_readw(u32 pa);
+extern u32 omap_readl(u32 pa);
+extern void omap_writeb(u8 v, u32 pa);
+extern void omap_writew(u16 v, u32 pa);
+extern void omap_writel(u32 v, u32 pa);
+
+#include <plat/tc.h>
+
+/* Almost all documentation for chip and board memory maps assumes
+ * BM is clear. Most devel boards have a switch to control booting
+ * from NOR flash (using external chipselect 3) rather than mask ROM,
+ * which uses BM to interchange the physical CS0 and CS3 addresses.
+ */
+static inline u32 omap_cs0m_phys(void)
+{
+ return (omap_readl(EMIFS_CONFIG) & OMAP_EMIFS_CONFIG_BM)
+ ? OMAP_CS3_PHYS : 0;
+}
+
+static inline u32 omap_cs3_phys(void)
+{
+ return (omap_readl(EMIFS_CONFIG) & OMAP_EMIFS_CONFIG_BM)
+ ? 0 : OMAP_CS3_PHYS;
+}
+
+#endif
+#endif
+
#include <plat/hardware.h>