diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_dwlib.h')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dwlib.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_dwlib.h b/drivers/tty/serial/8250/8250_dwlib.h index 83d528e5cc21..7dd2a8e7b780 100644 --- a/drivers/tty/serial/8250/8250_dwlib.h +++ b/drivers/tty/serial/8250/8250_dwlib.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* Synopsys DesignWare 8250 library header file. */ +#include <linux/io.h> #include <linux/types.h> #include "8250.h" @@ -13,8 +14,27 @@ struct dw8250_port_data { struct uart_8250_dma dma; /* Hardware configuration */ + u32 cpr_value; u8 dlf_size; + + /* RS485 variables */ + bool hw_rs485_support; }; -void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, struct ktermios *old); +void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, const struct ktermios *old); void dw8250_setup_port(struct uart_port *p); + +static inline u32 dw8250_readl_ext(struct uart_port *p, int offset) +{ + if (p->iotype == UPIO_MEM32BE) + return ioread32be(p->membase + offset); + return readl(p->membase + offset); +} + +static inline void dw8250_writel_ext(struct uart_port *p, int offset, u32 reg) +{ + if (p->iotype == UPIO_MEM32BE) + iowrite32be(reg, p->membase + offset); + else + writel(reg, p->membase + offset); +} |