Merge branch 'next' into for-linus

1 files changed, 90 insertions, 4 deletions

diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h
index ebadf4ac43fc..26bb1bab4aeb 100644
--- a/arch/arm/plat-mxc/include/mach/hardware.h
+++ b/arch/arm/plat-mxc/include/mach/hardware.h
@@ -22,13 +22,92 @@
 
 #include <asm/sizes.h>
 
-#define IMX_IO_ADDRESS(addr, module)					\
-	((void __force __iomem *)					\
-	 (((unsigned long)((addr) - (module ## _BASE_ADDR)) < module ## _SIZE) ?\
-	 (addr) - (module ## _BASE_ADDR) + (module ## _BASE_ADDR_VIRT) : 0))
+#ifdef __ASSEMBLER__
+#define IOMEM(addr)	(addr)
+#else
+#define IOMEM(addr)	((void __force __iomem *)(addr))
+#endif
+
+#define IMX_IO_P2V_MODULE(addr, module)					\
+	(((addr) - module ## _BASE_ADDR) < module ## _SIZE ?		\
+	 (addr) - (module ## _BASE_ADDR) + (module ## _BASE_ADDR_VIRT) : 0)
+
+/*
+ * This is rather complicated for humans and ugly to verify, but for a machine
+ * it's OK.  Still more as it is usually only applied to constants.  The upsides
+ * on using this approach are:
+ *
+ *  - same mapping on all i.MX machines
+ *  - works for assembler, too
+ *  - no need to nurture #defines for virtual addresses
+ *
+ * The downside it, it's hard to verify (but I have a script for that).
+ *
+ * Obviously this needs to be injective for each SoC.  In general it maps the
+ * whole address space to [0xf4000000, 0xf5ffffff].  So [0xf6000000,0xfeffffff]
+ * is free for per-machine use (e.g. KZM_ARM11_01 uses 64MiB there).
+ *
+ * It applies the following mappings for the different SoCs:
+ *
+ * mx1:
+ *	IO	0x00200000+0x100000	->	0xf4000000+0x100000
+ * mx21:
+ *	AIPI	0x10000000+0x100000	->	0xf4400000+0x100000
+ *	SAHB1	0x80000000+0x100000	->	0xf4000000+0x100000
+ *	X_MEMC	0xdf000000+0x004000	->	0xf5f00000+0x004000
+ * mx25:
+ *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
+ *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
+ *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
+ * mx27:
+ *	AIPI	0x10000000+0x100000	->	0xf4400000+0x100000
+ *	SAHB1	0x80000000+0x100000	->	0xf4000000+0x100000
+ *	X_MEMC	0xd8000000+0x100000	->	0xf5c00000+0x100000
+ * mx31:
+ *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
+ *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
+ *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
+ *	X_MEMC	0xb8000000+0x010000	->	0xf4c00000+0x010000
+ *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
+ * mx35:
+ *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
+ *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
+ *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
+ *	X_MEMC	0xb8000000+0x010000	->	0xf4c00000+0x010000
+ *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
+ * mx50:
+ *	TZIC	0x0fffc000+0x004000	->	0xf4bfc000+0x004000
+ *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
+ *	AIPS1	0x53f00000+0x100000	->	0xf5700000+0x100000
+ *	AIPS2	0x63f00000+0x100000	->	0xf5300000+0x100000
+ * mx51:
+ *	IRAM	0x1ffe0000+0x020000	->	0xf4fe0000+0x020000
+ *	DEBUG	0x60000000+0x100000	->	0xf5000000+0x100000
+ *	SPBA0	0x70000000+0x100000	->	0xf5400000+0x100000
+ *	AIPS1	0x73f00000+0x100000	->	0xf5700000+0x100000
+ *	AIPS2	0x83f00000+0x100000	->	0xf4300000+0x100000
+ * mxc91231:
+ *	L2CC	0x30000000+0x010000	->	0xf4400000+0x010000
+ *	X_MEMC	0xb8000000+0x010000	->	0xf4c00000+0x010000
+ *	ROMP	0x60000000+0x010000	->	0xf5000000+0x010000
+ *	AVIC	0x68000000+0x010000	->	0xf5800000+0x010000
+ *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
+ *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
+ *	SPBA1	0x52000000+0x100000	->	0xf5600000+0x100000
+ *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
+ */
+#define IMX_IO_P2V(x)	(						\
+			0xf4000000 +					\
+			(((x) & 0x50000000) >> 6) +			\
+			(((x) & 0x0b000000) >> 4) +			\
+			(((x) & 0x000fffff)))
+
+#define IMX_IO_ADDRESS(x)	IOMEM(IMX_IO_P2V(x))
 
 #ifdef CONFIG_ARCH_MX5
+#include <mach/mx50.h>
 #include <mach/mx51.h>
+#include <mach/mx53.h>
 #endif
 
 #ifdef CONFIG_ARCH_MX3
@@ -61,4 +140,11 @@
 
 #include <mach/mxc.h>
 
+#define imx_map_entry(soc, name, _type)	{				\
+	.virtual = soc ## _IO_P2V(soc ## _ ## name ## _BASE_ADDR),	\
+	.pfn = __phys_to_pfn(soc ## _ ## name ## _BASE_ADDR),		\
+	.length = soc ## _ ## name ## _SIZE,				\
+	.type = _type,							\
+}
+
 #endif /* __ASM_ARCH_MXC_HARDWARE_H__ */