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| author | Sonic Zhang <sonic.zhang@analog.com> | 2012-05-16 14:22:26 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-17 13:25:56 -0700 |
| commit | 59bd234b72fc29887839d792b7d6c7e8d2a577a6 (patch) | |
| tree | 88bf5f49e90ccb7300621c23076355b392574715 /drivers/tty | |
| parent | 3c2d0ed221a22ce2c1c9fe1e2d6142374917642e (diff) | |
| download | linux-59bd234b72fc29887839d792b7d6c7e8d2a577a6.tar.gz linux-59bd234b72fc29887839d792b7d6c7e8d2a577a6.tar.xz linux-59bd234b72fc29887839d792b7d6c7e8d2a577a6.zip | |
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 <sonic.zhang@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/bfin_uart.c | 20 |
1 files changed, 4 insertions, 16 deletions
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); |