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Diffstat (limited to 'arch/arm/plat-omap/include/mach/io.h')
-rw-r--r--arch/arm/plat-omap/include/mach/io.h97
1 files changed, 48 insertions, 49 deletions
diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h
index 21fb0efdda86..8d32df32b0b1 100644
--- a/arch/arm/plat-omap/include/mach/io.h
+++ b/arch/arm/plat-omap/include/mach/io.h
@@ -54,17 +54,33 @@
* ----------------------------------------------------------------------------
*/
-#if defined(CONFIG_ARCH_OMAP1)
+#ifdef __ASSEMBLER__
+#define IOMEM(x) (x)
+#else
+#define IOMEM(x) ((void __force __iomem *)(x))
+#endif
+
+#define OMAP1_IO_OFFSET 0x01000000 /* Virtual IO = 0xfefb0000 */
+#define OMAP1_IO_ADDRESS(pa) IOMEM((pa) - OMAP1_IO_OFFSET)
+
+#define OMAP2_IO_OFFSET 0x90000000
+#define OMAP2_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_IO_OFFSET) /* L3 and L4 */
+
+/*
+ * ----------------------------------------------------------------------------
+ * Omap1 specific IO mapping
+ * ----------------------------------------------------------------------------
+ */
-#define IO_PHYS 0xFFFB0000
-#define IO_OFFSET 0x01000000 /* Virtual IO = 0xfefb0000 */
-#define IO_SIZE 0x40000
-#define IO_VIRT (IO_PHYS - IO_OFFSET)
-#define __IO_ADDRESS(pa) ((pa) - IO_OFFSET)
-#define __OMAP1_IO_ADDRESS(pa) ((pa) - IO_OFFSET)
-#define io_v2p(va) ((va) + IO_OFFSET)
+#define OMAP1_IO_PHYS 0xFFFB0000
+#define OMAP1_IO_SIZE 0x40000
+#define OMAP1_IO_VIRT (OMAP1_IO_PHYS - OMAP1_IO_OFFSET)
-#elif defined(CONFIG_ARCH_OMAP2)
+/*
+ * ----------------------------------------------------------------------------
+ * Omap2 specific IO mapping
+ * ----------------------------------------------------------------------------
+ */
/* We map both L3 and L4 on OMAP2 */
#define L3_24XX_PHYS L3_24XX_BASE /* 0x68000000 */
@@ -87,11 +103,6 @@
#define OMAP243X_SMS_VIRT 0xFC000000
#define OMAP243X_SMS_SIZE SZ_1M
-#define IO_OFFSET 0x90000000
-#define __IO_ADDRESS(pa) ((pa) + IO_OFFSET) /* Works for L3 and L4 */
-#define __OMAP2_IO_ADDRESS(pa) ((pa) + IO_OFFSET) /* Works for L3 and L4 */
-#define io_v2p(va) ((va) - IO_OFFSET) /* Works for L3 and L4 */
-
/* DSP */
#define DSP_MEM_24XX_PHYS OMAP2420_DSP_MEM_BASE /* 0x58000000 */
#define DSP_MEM_24XX_VIRT 0xe0000000
@@ -103,7 +114,11 @@
#define DSP_MMU_24XX_VIRT 0xe2000000
#define DSP_MMU_24XX_SIZE SZ_4K
-#elif defined(CONFIG_ARCH_OMAP3)
+/*
+ * ----------------------------------------------------------------------------
+ * Omap3 specific IO mapping
+ * ----------------------------------------------------------------------------
+ */
/* We map both L3 and L4 on OMAP3 */
#define L3_34XX_PHYS L3_34XX_BASE /* 0x68000000 */
@@ -143,12 +158,6 @@
#define OMAP343X_SDRC_VIRT 0xFD000000
#define OMAP343X_SDRC_SIZE SZ_1M
-
-#define IO_OFFSET 0x90000000
-#define __IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */
-#define __OMAP2_IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */
-#define io_v2p(va) ((va) - IO_OFFSET)/* Works for L3 and L4 */
-
/* DSP */
#define DSP_MEM_34XX_PHYS OMAP34XX_DSP_MEM_BASE /* 0x58000000 */
#define DSP_MEM_34XX_VIRT 0xe0000000
@@ -160,8 +169,12 @@
#define DSP_MMU_34XX_VIRT 0xe2000000
#define DSP_MMU_34XX_SIZE SZ_4K
+/*
+ * ----------------------------------------------------------------------------
+ * Omap4 specific IO mapping
+ * ----------------------------------------------------------------------------
+ */
-#elif defined(CONFIG_ARCH_OMAP4)
/* We map both L3 and L4 on OMAP4 */
#define L3_44XX_PHYS L3_44XX_BASE
#define L3_44XX_VIRT 0xd4000000
@@ -189,38 +202,24 @@
#define OMAP44XX_GPMC_SIZE SZ_1M
-#define IO_OFFSET 0x90000000
-#define __IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */
-#define __OMAP2_IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */
-#define io_v2p(va) ((va) - IO_OFFSET)/* Works for L3 and L4 */
-
-#endif
-
-#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa))
-#define OMAP1_IO_ADDRESS(pa) IOMEM(__OMAP1_IO_ADDRESS(pa))
-#define OMAP2_IO_ADDRESS(pa) IOMEM(__OMAP2_IO_ADDRESS(pa))
+/*
+ * ----------------------------------------------------------------------------
+ * Omap specific register access
+ * ----------------------------------------------------------------------------
+ */
-#ifdef __ASSEMBLER__
-#define IOMEM(x) (x)
-#else
-#define IOMEM(x) ((void __force __iomem *)(x))
+#ifndef __ASSEMBLER__
/*
- * Functions to access the OMAP IO region
- *
- * NOTE: - Use omap_read/write[bwl] for physical register addresses
- * - Use __raw_read/write[bwl]() for virtual register addresses
- * - Use IO_ADDRESS(phys_addr) to convert registers to virtual addresses
- * - DO NOT use hardcoded virtual addresses to allow changing the
- * IO address space again if needed
+ * NOTE: Please use ioremap + __raw_read/write where possible instead of these
*/
-#define omap_readb(a) __raw_readb(IO_ADDRESS(a))
-#define omap_readw(a) __raw_readw(IO_ADDRESS(a))
-#define omap_readl(a) __raw_readl(IO_ADDRESS(a))
-#define omap_writeb(v,a) __raw_writeb(v, IO_ADDRESS(a))
-#define omap_writew(v,a) __raw_writew(v, IO_ADDRESS(a))
-#define omap_writel(v,a) __raw_writel(v, IO_ADDRESS(a))
+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);
struct omap_sdrc_params;