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| author | Wolfgang Denk <wd@pollux.denx.de> | 2006-05-09 13:46:55 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@pollux.denx.de> | 2006-05-09 13:46:55 +0200 |
| commit | 1cfefe8cb6e1bb43f6509c0aee254e2908d42f21 (patch) | |
| tree | eba45129d65b83452d281514802f3895aa4f283e /cpu/mcf52x2/serial.c | |
| parent | 67a94685225b289fb3344cf00fefa91fd93f24ae (diff) | |
| parent | 78b123cd69d485887f33ebd33ba1f9b27f8e6916 (diff) | |
| download | u-boot-imx-1cfefe8cb6e1bb43f6509c0aee254e2908d42f21.zip u-boot-imx-1cfefe8cb6e1bb43f6509c0aee254e2908d42f21.tar.gz u-boot-imx-1cfefe8cb6e1bb43f6509c0aee254e2908d42f21.tar.bz2 | |
Merge with /home/m8/git/u-boot
Diffstat (limited to 'cpu/mcf52x2/serial.c')
| -rw-r--r-- | cpu/mcf52x2/serial.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/cpu/mcf52x2/serial.c b/cpu/mcf52x2/serial.c index 79628d0..1cde1b6 100644 --- a/cpu/mcf52x2/serial.c +++ b/cpu/mcf52x2/serial.c @@ -26,6 +26,10 @@ #include <asm/mcfuart.h> +#ifdef CONFIG_M5271 +#include <asm/m5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/m5272.h> #endif @@ -40,7 +44,7 @@ DECLARE_GLOBAL_DATA_PTR; -#ifdef CONFIG_M5249 +#if defined(CONFIG_M5249) || defined(CONFIG_M5271) #define DoubleClock(a) ((double)(CFG_CLK/2) / 32.0 / (double)(a)) #else #define DoubleClock(a) ((double)(CFG_CLK) / 32.0 / (double)(a)) @@ -48,9 +52,12 @@ DECLARE_GLOBAL_DATA_PTR; void rs_serial_setbaudrate(int port,int baudrate) { -#if defined(CONFIG_M5272) || defined(CONFIG_M5249) +#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5271) volatile unsigned char *uartp; - double clock, fraction; +#ifndef CONFIG_M5271 + double fraction; +#endif + double clock; if (port == 0) uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE1); @@ -59,12 +66,14 @@ void rs_serial_setbaudrate(int port,int baudrate) clock = DoubleClock(baudrate); /* Set baud above */ - fraction = ((clock - (int)clock) * 16.0) + 0.5; - uartp[MCFUART_UBG1] = (((int)clock >> 8) & 0xff); /* set msb baud */ uartp[MCFUART_UBG2] = ((int)clock & 0xff); /* set lsb baud */ + +#ifndef CONFIG_M5271 + fraction = ((clock - (int)clock) * 16.0) + 0.5; uartp[MCFUART_UFPD] = ((int)fraction & 0xf); /* set baud fraction adjust */ #endif +#endif }; void rs_serial_init(int port,int baudrate) @@ -79,8 +88,9 @@ void rs_serial_init(int port,int baudrate) else uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE2); - uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETRX; /* reset RX */ uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETTX; /* reset TX */ + uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETRX; /* reset RX */ + uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETMRPTR; /* reset MR pointer */ uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETERR; /* reset Error pointer */ @@ -90,9 +100,15 @@ void rs_serial_init(int port,int baudrate) uartp[MCFUART_UMR] = MCFUART_MR1_PARITYNONE | MCFUART_MR1_CS8; uartp[MCFUART_UMR] = MCFUART_MR2_STOP1; - rs_serial_setbaudrate(port,baudrate); + /* Mask UART interrupts */ + uartp[MCFUART_UIMR] = 0; + /* Set clock Select Register: Tx/Rx clock is timer */ uartp[MCFUART_UCSR] = MCFUART_UCSR_RXCLKTIMER | MCFUART_UCSR_TXCLKTIMER; + + rs_serial_setbaudrate(port,baudrate); + + /* Enable Tx/Rx */ uartp[MCFUART_UCR] = MCFUART_UCR_RXENABLE | MCFUART_UCR_TXENABLE; return; |