davinci: serial: generalize for more SoCs

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

1 files changed, 18 insertions, 3 deletions

diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
index fb8cb229bfd2..632847d74a1c 100644
--- a/arch/arm/mach-davinci/include/mach/serial.h
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -13,8 +13,23 @@
 
 #include <mach/io.h>
 
-#define DAVINCI_UART0_BASE   (IO_PHYS + 0x20000)
-#define DAVINCI_UART1_BASE   (IO_PHYS + 0x20400)
-#define DAVINCI_UART2_BASE   (IO_PHYS + 0x20800)
+#define DAVINCI_MAX_NR_UARTS    3
+#define DAVINCI_UART0_BASE      (IO_PHYS + 0x20000)
+#define DAVINCI_UART1_BASE      (IO_PHYS + 0x20400)
+#define DAVINCI_UART2_BASE      (IO_PHYS + 0x20800)
+
+#define DM355_UART2_BASE        (IO_PHYS + 0x206000)
+
+/* DaVinci UART register offsets */
+#define UART_DAVINCI_PWREMU             0x0c
+#define UART_DM646X_SCR                 0x10
+#define UART_DM646X_SCR_TX_WATERMARK    0x08
+
+struct davinci_uart_config {
+        /* Bit field of UARTs present; bit 0 --> UART1 */
+        unsigned int enabled_uarts;
+};
+
+extern void davinci_serial_init(struct davinci_uart_config *);
 
 #endif /* __ASM_ARCH_SERIAL_H */