serial_mx31: allow it to work with mx27 too and rename to serial_mxc

UART hardware on i.MX27 is the same as on the i.MX31 so we just
need to provide the driver with correct address of the registers.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>

drivers/serial/Makefile

@@ -41,7 +41,7 @@ COBJS-$(CONFIG_KS8695_SERIAL) += serial_ks8695.o
 COBJS-$(CONFIG_LPC2292_SERIAL) += serial_lpc2292.o
 COBJS-$(CONFIG_LH7A40X_SERIAL) += serial_lh7a40x.o
 COBJS-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o
-COBJS-$(CONFIG_MX31_UART) += serial_mx31.o
+COBJS-$(CONFIG_MXC_UART) += serial_mxc.o
 COBJS-$(CONFIG_NETARM_SERIAL) += serial_netarm.o
 COBJS-$(CONFIG_PL010_SERIAL) += serial_pl01x.o
 COBJS-$(CONFIG_PL011_SERIAL) += serial_pl01x.o

drivers/serial/serial_mx31.c → drivers/serial/serial_mxc.c

@@ -18,7 +18,12 @@
  */
 
 #include <common.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)))
 
@@ -32,6 +37,18 @@
 #define UART_PHYS 0x43fb0000
 #elif defined(CONFIG_SYS_MX31_UART5)
 #define UART_PHYS 0x43fb4000
+#elif defined(CONFIG_SYS_MX27_UART1)
+#define UART_PHYS 0x1000a000
+#elif defined(CONFIG_SYS_MX27_UART2)
+#define UART_PHYS 0x1000b000
+#elif defined(CONFIG_SYS_MX27_UART3)
+#define UART_PHYS 0x1000c000
+#elif defined(CONFIG_SYS_MX27_UART4)
+#define UART_PHYS 0x1000d000
+#elif defined(CONFIG_SYS_MX27_UART5)
+#define UART_PHYS 0x1001b000
+#elif defined(CONFIG_SYS_MX27_UART6)
+#define UART_PHYS 0x1001c000
 #else
 #error "define CONFIG_SYS_MX31_UARTx to use the mx31 UART driver"
 #endif
@@ -149,7 +166,11 @@ DECLARE_GLOBAL_DATA_PTR;
 
 void serial_setbrg (void)
 {
+#ifdef CONFIG_MX31
 	u32 clk = mx31_get_ipg_clk();
+#else
+	u32 clk = imx_get_perclk1();
+#endif
 
 	if (!gd->baudrate)
 		gd->baudrate = CONFIG_BAUDRATE;

include/configs/imx31_litekit.h

@@ -60,7 +60,7 @@
  * Hardware drivers
  */
 
-#define CONFIG_MX31_UART	1
+#define CONFIG_MXC_UART	1
 #define CONFIG_SYS_MX31_UART1		1
 
 #define CONFIG_HARD_SPI		1

include/configs/imx31_phycore.h

@@ -64,7 +64,7 @@
 #define CONFIG_SYS_I2C_SPEED		100000
 #define CONFIG_SYS_I2C_SLAVE		0xfe
 
-#define CONFIG_MX31_UART	1
+#define CONFIG_MXC_UART	1
 #define CONFIG_SYS_MX31_UART1		1
 
 /* allow to overwrite serial and ethaddr */

include/configs/mx31ads.h

@@ -57,7 +57,7 @@
  * Hardware drivers
  */
 
-#define CONFIG_MX31_UART	1
+#define CONFIG_MXC_UART	1
 #define CONFIG_SYS_MX31_UART1		1
 
 #define CONFIG_HARD_SPI		1

include/configs/qong.h

@@ -49,7 +49,7 @@
  * Hardware drivers
  */
 
-#define CONFIG_MX31_UART	1
+#define CONFIG_MXC_UART	1
 #define CONFIG_SYS_MX31_UART1	1
 
 /* FPGA */