diff options
Diffstat (limited to 'drivers/tty/serial/s3c2440.c')
| -rw-r--r-- | drivers/tty/serial/s3c2440.c | 33 |
1 files changed, 3 insertions, 30 deletions
diff --git a/drivers/tty/serial/s3c2440.c b/drivers/tty/serial/s3c2440.c index 1d0c324b813f..4498828630f1 100644 --- a/drivers/tty/serial/s3c2440.c +++ b/drivers/tty/serial/s3c2440.c @@ -39,7 +39,7 @@ static int s3c2440_serial_setsource(struct uart_port *port, ucon |= S3C2440_UCON_UCLK; else if (strcmp(clk->name, "pclk") == 0) ucon |= S3C2440_UCON_PCLK; - else if (strcmp(clk->name, "fclk") == 0) + else if (strcmp(clk->name, "fclk_n") == 0) ucon |= S3C2440_UCON_FCLK; else { printk(KERN_ERR "unknown clock source %s\n", clk->name); @@ -55,7 +55,6 @@ static int s3c2440_serial_getsource(struct uart_port *port, struct s3c24xx_uart_clksrc *clk) { unsigned long ucon = rd_regl(port, S3C2410_UCON); - unsigned long ucon0, ucon1, ucon2; switch (ucon & S3C2440_UCON_CLKMASK) { case S3C2440_UCON_UCLK: @@ -70,34 +69,8 @@ static int s3c2440_serial_getsource(struct uart_port *port, break; case S3C2440_UCON_FCLK: - /* the fun of calculating the uart divisors on - * the s3c2440 */ - - ucon0 = __raw_readl(S3C24XX_VA_UART0 + S3C2410_UCON); - ucon1 = __raw_readl(S3C24XX_VA_UART1 + S3C2410_UCON); - ucon2 = __raw_readl(S3C24XX_VA_UART2 + S3C2410_UCON); - - printk("ucons: %08lx, %08lx, %08lx\n", ucon0, ucon1, ucon2); - - ucon0 &= S3C2440_UCON0_DIVMASK; - ucon1 &= S3C2440_UCON1_DIVMASK; - ucon2 &= S3C2440_UCON2_DIVMASK; - - if (ucon0 != 0) { - clk->divisor = ucon0 >> S3C2440_UCON_DIVSHIFT; - clk->divisor += 6; - } else if (ucon1 != 0) { - clk->divisor = ucon1 >> S3C2440_UCON_DIVSHIFT; - clk->divisor += 21; - } else if (ucon2 != 0) { - clk->divisor = ucon2 >> S3C2440_UCON_DIVSHIFT; - clk->divisor += 36; - } else { - /* manual calims 44, seems to be 9 */ - clk->divisor = 9; - } - - clk->name = "fclk"; + clk->divisor = 1; + clk->name = "fclk_n"; break; } |