davinci: add arch_ioremap() which uses existing static mappings

Add arch-specific ioremap() which uses any existing static mappings in
place of doing a new mapping.  From now on, drivers should always use
ioremap() instead of IO_ADDRESS().

In addition, remove the davinci_[read|write]* macros in favor of using
ioremap.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

3 files changed, 21 insertions, 54 deletions

diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h
index b456f079f43..5e7c36b202f 100644
--- a/arch/arm/mach-davinci/include/mach/gpio.h
+++ b/arch/arm/mach-davinci/include/mach/gpio.h
@@ -15,9 +15,11 @@
 
 #include <linux/io.h>
 #include <asm-generic/gpio.h>
-#include <mach/hardware.h>
+
 #include <mach/irqs.h>
 
+#define DAVINCI_GPIO_BASE 0x01C67000
+
 /*
  * basic gpio routines
  *
diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h
index a2e8969afac..48c77934d51 100644
--- a/arch/arm/mach-davinci/include/mach/hardware.h
+++ b/arch/arm/mach-davinci/include/mach/hardware.h
@@ -1,9 +1,9 @@
 /*
- * Common hardware definitions
+ * Hardware definitions common to all DaVinci family processors
  *
- * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
+ * Author: Kevin Hilman, Deep Root Systems, LLC
  *
- * 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * 2007 (c) Deep Root Systems, LLC. This file is licensed under
  * the terms of the GNU General Public License version 2. This program
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
@@ -12,41 +12,16 @@
 #define __ASM_ARCH_HARDWARE_H
 
 /*
- * Base register addresses
+ * Before you add anything to ths file:
+ *
+ * This header is for defines common to ALL DaVinci family chips.
+ * Anything that is chip specific should go in <chipname>.h,
+ * and the chip/board init code should then explicitly include
+ * <chipname>.h
  */
-#define DAVINCI_DMA_3PCC_BASE			(0x01C00000)
-#define DAVINCI_DMA_3PTC0_BASE			(0x01C10000)
-#define DAVINCI_DMA_3PTC1_BASE			(0x01C10400)
-#define DAVINCI_I2C_BASE			(0x01C21000)
-#define DAVINCI_PWM0_BASE			(0x01C22000)
-#define DAVINCI_PWM1_BASE			(0x01C22400)
-#define DAVINCI_PWM2_BASE			(0x01C22800)
-#define DAVINCI_SYSTEM_MODULE_BASE		(0x01C40000)
-#define DAVINCI_PLL_CNTRL0_BASE			(0x01C40800)
-#define DAVINCI_PLL_CNTRL1_BASE			(0x01C40C00)
-#define DAVINCI_PWR_SLEEP_CNTRL_BASE		(0x01C41000)
-#define DAVINCI_SYSTEM_DFT_BASE			(0x01C42000)
-#define DAVINCI_IEEE1394_BASE			(0x01C60000)
-#define DAVINCI_USB_OTG_BASE			(0x01C64000)
-#define DAVINCI_CFC_ATA_BASE			(0x01C66000)
-#define DAVINCI_SPI_BASE			(0x01C66800)
-#define DAVINCI_GPIO_BASE			(0x01C67000)
-#define DAVINCI_UHPI_BASE			(0x01C67800)
-#define DAVINCI_VPSS_REGS_BASE			(0x01C70000)
-#define DAVINCI_EMAC_CNTRL_REGS_BASE		(0x01C80000)
-#define DAVINCI_EMAC_WRAPPER_CNTRL_REGS_BASE	(0x01C81000)
-#define DAVINCI_EMAC_WRAPPER_RAM_BASE		(0x01C82000)
-#define DAVINCI_MDIO_CNTRL_REGS_BASE		(0x01C84000)
-#define DAVINCI_IMCOP_BASE			(0x01CC0000)
-#define DAVINCI_ASYNC_EMIF_CNTRL_BASE		(0x01E00000)
-#define DAVINCI_VLYNQ_BASE			(0x01E01000)
-#define DAVINCI_MCBSP_BASE			(0x01E02000)
-#define DAVINCI_MMC_SD_BASE			(0x01E10000)
-#define DAVINCI_MS_BASE				(0x01E20000)
-#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE	(0x02000000)
-#define DAVINCI_ASYNC_EMIF_DATA_CE1_BASE	(0x04000000)
-#define DAVINCI_ASYNC_EMIF_DATA_CE2_BASE	(0x06000000)
-#define DAVINCI_ASYNC_EMIF_DATA_CE3_BASE	(0x08000000)
-#define DAVINCI_VLYNQ_REMOTE_BASE		(0x0C000000)
+#define DAVINCI_SYSTEM_MODULE_BASE        0x01C40000
+
+/* System control register offsets */
+#define DM64XX_VDD3P3V_PWDN	0x48
 
 #endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-davinci/include/mach/io.h b/arch/arm/mach-davinci/include/mach/io.h
index a48795fd241..2479785405a 100644
--- a/arch/arm/mach-davinci/include/mach/io.h
+++ b/arch/arm/mach-davinci/include/mach/io.h
@@ -40,22 +40,12 @@
 #else
 #define IOMEM(x)                ((void __force __iomem *)(x))
 
-/*
- * Functions to access the DaVinci IO region
- *
- * NOTE: - Use davinci_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
- */
-#define davinci_readb(a)	__raw_readb(IO_ADDRESS(a))
-#define davinci_readw(a)	__raw_readw(IO_ADDRESS(a))
-#define davinci_readl(a)	__raw_readl(IO_ADDRESS(a))
+#define __arch_ioremap(p, s, t)	davinci_ioremap(p, s, t)
+#define __arch_iounmap(v)	davinci_iounmap(v)
 
-#define davinci_writeb(v, a)	__raw_writeb(v, IO_ADDRESS(a))
-#define davinci_writew(v, a)	__raw_writew(v, IO_ADDRESS(a))
-#define davinci_writel(v, a)	__raw_writel(v, IO_ADDRESS(a))
+void __iomem *davinci_ioremap(unsigned long phys, size_t size,
+			      unsigned int type);
+void davinci_iounmap(volatile void __iomem *addr);
 
 #endif /* __ASSEMBLER__ */
 #endif /* __ASM_ARCH_IO_H */