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-rw-r--r--arch/arm/plat-mxc/include/mach/hardware.h94
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 ebadf4ac43f..26bb1bab4ae 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__ */