IMX: MX31: Cleanup include files and drop nasty #ifdef in drivers

As exception among the i.MX processors, the i.MX31 has headers
without general names (mx31-regs.h, mx31.h instead of imx-regs.h and
clock.h). This requires several nasty #ifdef in the drivers to
include the correct header. The patch cleans up the driver and
renames the header files as for the other i.MX processors.

Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c
index 53a0673..1037862 100644
--- a/drivers/gpio/mxc_gpio.c
+++ b/drivers/gpio/mxc_gpio.c
@@ -21,12 +21,7 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
-#ifdef CONFIG_MX31
-#include <asm/arch/mx31-regs.h>
-#endif
-#if defined(CONFIG_MX51) || defined(CONFIG_MX53)
 #include <asm/arch/imx-regs.h>
-#endif
 #include <asm/io.h>
 #include <mxc_gpio.h>
 
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index c5ec486..89d1973 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -27,13 +27,8 @@
 
 #if defined(CONFIG_HARD_I2C)
 
-#if defined(CONFIG_MX31)
-#include <asm/arch/mx31.h>
-#include <asm/arch/mx31-regs.h>
-#else
-#include <asm/arch/imx-regs.h>
 #include <asm/arch/clock.h>
-#endif
+#include <asm/arch/imx-regs.h>
 
 #define IADR	0x00
 #define IFDR	0x04
diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c
index b9cf9de..dcb4bd1 100644
--- a/drivers/serial/serial_mxc.c
+++ b/drivers/serial/serial_mxc.c
@@ -19,12 +19,8 @@
 
 #include <common.h>
 #include <watchdog.h>
-#ifdef CONFIG_MX31
-#include <asm/arch/mx31.h>
-#else
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/clock.h>
-#endif
 
 #define __REG(x)     (*((volatile u32 *)(x)))
 
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 6474eb8..f909e07 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -24,6 +24,8 @@
 #include <asm/errno.h>
 #include <asm/io.h>
 #include <mxc_gpio.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
 
 #ifdef CONFIG_MX27
 /* i.MX27 has a completely wrong register layout and register definitions in the
@@ -34,8 +36,6 @@
 
 #elif defined(CONFIG_MX31)
 
-#include <asm/arch/mx31.h>
-
 #define MXC_CSPICTRL_EN		(1 << 0)
 #define MXC_CSPICTRL_MODE	(1 << 1)
 #define MXC_CSPICTRL_XCH	(1 << 2)
@@ -63,8 +63,6 @@
 #define mxc_get_clock(x)	mx31_get_ipg_clk()
 
 #elif defined(CONFIG_MX51)
-#include <asm/arch/imx-regs.h>
-#include <asm/arch/clock.h>
 
 #define MXC_CSPICTRL_EN		(1 << 0)
 #define MXC_CSPICTRL_MODE	(1 << 1)
@@ -97,9 +95,6 @@
 
 #elif defined(CONFIG_MX35)
 
-#include <asm/arch/imx-regs.h>
-#include <asm/arch/clock.h>
-
 #define MXC_CSPICTRL_EN		(1 << 0)
 #define MXC_CSPICTRL_MODE	(1 << 1)
 #define MXC_CSPICTRL_XCH	(1 << 2)
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index 8d7b380..6af35ab 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -20,7 +20,7 @@
 #include <common.h>
 #include <usb.h>
 #include <asm/io.h>
-#include <asm/arch/mx31-regs.h>
+#include <asm/arch/imx-regs.h>
 #include <usb/ehci-fsl.h>
 #include <errno.h>
 
diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index 6dd952c..0c925a0 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -22,8 +22,8 @@
  */
 #include <common.h>
 #include <lcd.h>
-#include <asm/arch/mx31.h>
-#include <asm/arch/mx31-regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
 #include <asm/errno.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -192,7 +192,7 @@
 };
 
 /* IPU Common registers */
-/* IPU_CONF and its bits already defined in mx31-regs.h */
+/* IPU_CONF and its bits already defined in imx-regs.h */
 #define IPU_CHA_BUF0_RDY	(0x04 + IPU_BASE)
 #define IPU_CHA_BUF1_RDY	(0x08 + IPU_BASE)
 #define IPU_CHA_DB_MODE_SEL	(0x0C + IPU_BASE)