From 59bd234b72fc29887839d792b7d6c7e8d2a577a6 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Wed, 16 May 2012 14:22:26 +0800 Subject: serial: bfin_uart: Make MMR access compatible with 32 bits bf609 style controller. Simplify serial data width calculation and adapt to bf609 LCR bit mask. Signed-off-by: Sonic Zhang Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/bfin_uart.c | 20 ++++---------------- 1 file changed, 4 insertions(+), 16 deletions(-) (limited to 'drivers/tty') diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c index 7924ba6d5dfb..bd97db23985b 100644 --- a/drivers/tty/serial/bfin_uart.c +++ b/drivers/tty/serial/bfin_uart.c @@ -594,7 +594,7 @@ static unsigned int bfin_serial_tx_empty(struct uart_port *port) static void bfin_serial_break_ctl(struct uart_port *port, int break_state) { struct bfin_serial_port *uart = (struct bfin_serial_port *)port; - u16 lcr = UART_GET_LCR(uart); + u32 lcr = UART_GET_LCR(uart); if (break_state) lcr |= SB; else @@ -1068,7 +1068,7 @@ bfin_serial_console_get_options(struct bfin_serial_port *uart, int *baud, status = UART_GET_IER(uart) & (ERBFI | ETBEI); if (status == (ERBFI | ETBEI)) { /* ok, the port was enabled */ - u16 lcr, clk; + u32 lcr, clk; lcr = UART_GET_LCR(uart); @@ -1079,20 +1079,8 @@ bfin_serial_console_get_options(struct bfin_serial_port *uart, int *baud, else *parity = 'o'; } - switch (lcr & 0x03) { - case 0: - *bits = 5; - break; - case 1: - *bits = 6; - break; - case 2: - *bits = 7; - break; - case 3: - *bits = 8; - break; - } + *bits = ((lcr & WLS_MASK) >> WLS_OFFSET) + 5; + /* Set DLAB in LCR to Access CLK */ UART_SET_DLAB(uart); -- cgit