ARM: OMAP: Introduce omap_globals and prcm access functions for multi-omap

New struct omap_globals contains the omap processor specific
module bases. Use omap_globals to set the various base addresses
to make detecting omap chip type simpler.

Also introduce OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS for future multi-omap
patches.

Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 19 insertions, 3 deletions

diff --git a/include/asm-arm/arch-omap/common.h b/include/asm-arm/arch-omap/common.h
index 36a3b62d4d8d..8ac03071f60c 100644
--- a/include/asm-arm/arch-omap/common.h
+++ b/include/asm-arm/arch-omap/common.h
@@ -47,8 +47,23 @@ static inline int omap_register_i2c_bus(int bus_id, u32 clkrate,
 }
 #endif
 
+/* IO bases for various OMAP processors */
+struct omap_globals {
+        void __iomem    *tap;           /* Control module ID code */
+        void __iomem    *sdrc;          /* SDRAM Controller */
+        void __iomem    *sms;           /* SDRAM Memory Scheduler */
+        void __iomem    *ctrl;          /* System Control Module */
+        void __iomem    *prm;           /* Power and Reset Management */
+        void __iomem    *cm;            /* Clock Management */
+};
+
 void omap2_set_globals_242x(void);
 void omap2_set_globals_243x(void);
 void omap2_set_globals_343x(void);
 
+/* These get called from omap2_set_globals_xxxx(), do not call these */
+void omap2_set_globals_memory(struct omap_globals *);
+void omap2_set_globals_control(struct omap_globals *);
+void omap2_set_globals_prcm(struct omap_globals *);
+
 #endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */
diff --git a/include/asm-arm/arch-omap/control.h b/include/asm-arm/arch-omap/control.h
index 59c0686f8be7..987553e3eeb9 100644
--- a/include/asm-arm/arch-omap/control.h
+++ b/include/asm-arm/arch-omap/control.h
@@ -167,8 +167,7 @@
 
 #ifndef __ASSEMBLY__
 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-extern void omap_ctrl_base_set(u32 base);
-extern u32 omap_ctrl_base_get(void);
+extern void __iomem *omap_ctrl_base_get(void);
 extern u8 omap_ctrl_readb(u16 offset);
 extern u16 omap_ctrl_readw(u16 offset);
 extern u32 omap_ctrl_readl(u16 offset);
@@ -176,7 +175,6 @@ extern void omap_ctrl_writeb(u8 val, u16 offset);
 extern void omap_ctrl_writew(u16 val, u16 offset);
 extern void omap_ctrl_writel(u32 val, u16 offset);
 #else
-#define omap_ctrl_base_set(x)           WARN_ON(1)
 #define omap_ctrl_base_get()            0
 #define omap_ctrl_readb(x)              0
 #define omap_ctrl_readw(x)              0
diff --git a/include/asm-arm/arch-omap/io.h b/include/asm-arm/arch-omap/io.h
index e1fb7ec7d478..0b13557fd30b 100644
--- a/include/asm-arm/arch-omap/io.h
+++ b/include/asm-arm/arch-omap/io.h
@@ -60,6 +60,7 @@
 #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_p2v(pa)      ((pa) - IO_OFFSET)
 #define io_v2p(va)      ((va) + IO_OFFSET)
 
@@ -91,6 +92,7 @@
 
 #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_p2v(pa)      ((pa) + IO_OFFSET)      /* Works for L3 and L4 */
 #define io_v2p(va)      ((va) - IO_OFFSET)      /* Works for L3 and L4 */
 
@@ -148,6 +150,7 @@
 
 #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_p2v(pa)              ((pa) + IO_OFFSET)/* Works for L3 and L4 */
 #define io_v2p(va)              ((va) - IO_OFFSET)/* Works for L3 and L4 */