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lpc2292: move serial driver to drivers/serial

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add CONFIG_LPC2292_SERIAL to activate the driver

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD
2009-03-29 23:01:42 +02:00
parent 176a600d0e
commit 6790c55704
5 changed files with 108 additions and 77 deletions
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77
cpu/arm720t/serial.c
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@@ -122,81 +122,4 @@ serial_puts (const char *s)
serial_putc (*s++);
}
}
#elif defined(CONFIG_LPC2292)
DECLARE_GLOBAL_DATA_PTR;
#include <asm/arch/hardware.h>
void serial_setbrg (void)
{
unsigned short divisor = 0;
switch (gd->baudrate) {
case 1200: divisor = 3072; break;
case 9600: divisor = 384; break;
case 19200: divisor = 192; break;
case 38400: divisor = 96; break;
case 57600: divisor = 64; break;
case 115200: divisor = 32; break;
default: hang (); break;
}
/* init serial UART0 */
PUT8(U0LCR, 0);
PUT8(U0IER, 0);
PUT8(U0LCR, 0x80); /* DLAB=1 */
PUT8(U0DLL, (unsigned char)(divisor & 0x00FF));
PUT8(U0DLM, (unsigned char)(divisor >> 8));
PUT8(U0LCR, 0x03); /* 8N1, DLAB=0 */
PUT8(U0FCR, 1); /* Enable RX and TX FIFOs */
}
int serial_init (void)
{
unsigned long pinsel0;
serial_setbrg ();
pinsel0 = GET32(PINSEL0);
pinsel0 &= ~(0x00000003);
pinsel0 |= 5;
PUT32(PINSEL0, pinsel0);
return (0);
}
void serial_putc (const char c)
{
if (c == '\n')
{
while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
PUT8(U0THR, '\r');
}
while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
PUT8(U0THR, c);
}
int serial_getc (void)
{
while((GET8(U0LSR) & 1) == 0);
return GET8(U0RBR);
}
void
serial_puts (const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
/* Test if there is a byte to read */
int serial_tstc (void)
{
return (GET8(U0LSR) & 1);
}
#endif