ARM: OMAP2 Provide function to enable/disable uart clocks

This patch adds common function to enable/disable omap2/3 uart
clocks. Enabled uarts are passed by bootloader in atags and clocks for
these enabled uarts are touched.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/mach/common.h b/arch/arm/plat-omap/include/mach/common.h
index 06093112b665..515c6286582c 100644
--- a/arch/arm/plat-omap/include/mach/common.h
+++ b/arch/arm/plat-omap/include/mach/common.h
@@ -34,6 +34,7 @@ struct sys_timer;
 extern void omap_map_common_io(void);
 extern struct sys_timer omap_timer;
 extern void omap_serial_init(void);
+extern void omap_serial_enable_clocks(int enable);
 #ifdef CONFIG_I2C_OMAP
 extern int omap_register_i2c_bus(int bus_id, u32 clkrate,
                                  struct i2c_board_info const *info,
diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h
index 515b89bee966..8a676a04be48 100644
--- a/arch/arm/plat-omap/include/mach/serial.h
+++ b/arch/arm/plat-omap/include/mach/serial.h
@@ -20,11 +20,17 @@
 #define OMAP_UART1_BASE         0x4806a000
 #define OMAP_UART2_BASE         0x4806c000
 #define OMAP_UART3_BASE         0x4806e000
+#elif defined(CONFIG_ARCH_OMAP3)
+/* OMAP3 serial ports */
+#define OMAP_UART1_BASE         0x4806a000
+#define OMAP_UART2_BASE         0x4806c000
+#define OMAP_UART3_BASE         0x49020000
 #endif
 
 #define OMAP_MAX_NR_PORTS       3
 #define OMAP1510_BASE_BAUD      (12000000/16)
 #define OMAP16XX_BASE_BAUD      (48000000/16)
+#define OMAP24XX_BASE_BAUD      (48000000/16)
 
 #define is_omap_port(pt)        ({int __ret = 0;                        \
                         if ((pt)->port.mapbase == OMAP_UART1_BASE ||    \