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improve something for fpga

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This commit is contained in:
luowei
2010-09-24 22:05:57 +08:00
parent 3de7c98920
commit cd3d356f6e
1 changed files with 2 additions and 5 deletions
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7
drivers/fpga/spi_uart.c
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@@ -407,12 +407,8 @@ static void spi_uart_receive_chars(struct spi_uart *uart, unsigned int *status)
int ret,count,stat = *status;
int i = 0;
unsigned char buf[SPI_UART_FIFO_LEN];
while (max_count >0)
while (stat & UART_LSR_DR)
{
if((((stat >> 8) & 0x3f) != 0) && (!(stat & UART_LSR_DR)))
printk("%s:warning:no receive data but count =%d \n",__FUNCTION__,((stat >> 8) & 0x3f));
if(!(stat & UART_LSR_DR))
break;
ret = spi_in(port, UART_RX, SEL_UART);
count = (ret >> 8) & 0x3f;
DBG("%s:count=%d\n",__FUNCTION__,count);
@@ -436,6 +432,7 @@ static void spi_uart_receive_chars(struct spi_uart *uart, unsigned int *status)
}
tty_flip_buffer_push(tty);
DBG("\n");
stat = spi_in(port, UART_LSR, SEL_UART) & 0xff;
}
DBG("\n");