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Remove unused CONFIG_HWFLOW option and associated dead code.

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Signed-off-by: David Müller <d.mueller@elsoft.ch>
This commit is contained in:
David Müller (ELSOFT AG) 2016-02-06 07:57:27 +01:00 committed by Tom Rini
parent b7fbdc60ab
commit 5a6f68d496
1 changed files with 0 additions and 35 deletions
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35
drivers/serial/serial_s3c24x0.c
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@ -65,10 +65,6 @@ DECLARE_GLOBAL_DATA_PTR;
.puts = s3serial##port##_puts, \
}
#ifdef CONFIG_HWFLOW
static int hwflow;
#endif
static void _serial_setbrg(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
@ -95,10 +91,6 @@ static int serial_init_dev(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
#ifdef CONFIG_HWFLOW
hwflow = 0; /* turned off by default */
#endif
/* FIFO enable, Tx/Rx FIFO clear */
writel(0x07, &uart->ufcon);
writel(0x0, &uart->umcon);
@ -111,10 +103,6 @@ static int serial_init_dev(const int dev_index)
*/
writel(0x245, &uart->ucon);
#ifdef CONFIG_HWFLOW
writel(0x1, &uart->umcon); /* rts up */
#endif
/* FIXME: This is sooooooooooooooooooo ugly */
#if defined(CONFIG_ARCH_GTA02_v1) || defined(CONFIG_ARCH_GTA02_v2)
/* we need auto hw flow control on the gsm and gps port */
@ -146,24 +134,6 @@ static inline int serial_getc_dev(unsigned int dev_index)
return _serial_getc(dev_index);
}
#ifdef CONFIG_HWFLOW
int hwflow_onoff(int on)
{
switch (on) {
case 0:
default:
break; /* return current */
case 1:
hwflow = 1; /* turn on */
break;
case -1:
hwflow = 0; /* turn off */
break;
}
return hwflow;
}
#endif
/*
* Output a single byte to the serial port.
*/
@ -174,11 +144,6 @@ static void _serial_putc(const char c, const int dev_index)
while (!(readl(&uart->utrstat) & 0x2))
/* wait for room in the tx FIFO */ ;
#ifdef CONFIG_HWFLOW
while (hwflow && !(readl(&uart->umstat) & 0x1))
/* Wait for CTS up */ ;
#endif
writeb(c, &uart->utxh);
/* If \n, also do \r */