static inline unsigned int sirfsoc_uart_tx_empty(struct uart_port *port)
{
unsigned long reg;
- reg = rd_regl(port, SIRFUART_TX_FIFO_STATUS);
- if (reg & SIRFUART_FIFOEMPTY_MASK(port))
- return TIOCSER_TEMT;
- else
- return 0;
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_fifo_status *ufifo_st = &sirfport->uart_reg->fifo_status;
+ reg = rd_regl(port, ureg->sirfsoc_tx_fifo_status);
+
+ return (reg & ufifo_st->ff_empty(port->line)) ? TIOCSER_TEMT : 0;
}
static unsigned int sirfsoc_uart_get_mctrl(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
if (!(sirfport->ms_enabled)) {
goto cts_asserted;
} else if (sirfport->hw_flow_ctrl) {
- if (!(rd_regl(port, SIRFUART_AFC_CTRL) &
- SIRFUART_CTS_IN_STATUS))
+ if (!(rd_regl(port, ureg->sirfsoc_afc_ctrl) &
+ SIRFUART_AFC_CTS_STATUS))
goto cts_asserted;
else
goto cts_deasserted;
static void sirfsoc_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
unsigned int assert = mctrl & TIOCM_RTS;
unsigned int val = assert ? SIRFUART_AFC_CTRL_RX_THD : 0x0;
unsigned int current_val;
if (sirfport->hw_flow_ctrl) {
- current_val = rd_regl(port, SIRFUART_AFC_CTRL) & ~0xFF;
+ current_val = rd_regl(port, ureg->sirfsoc_afc_ctrl) & ~0xFF;
val |= current_val;
- wr_regl(port, SIRFUART_AFC_CTRL, val);
+ wr_regl(port, ureg->sirfsoc_afc_ctrl, val);
}
}
static void sirfsoc_uart_stop_tx(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
unsigned int regv;
if (!sirfport->is_marco) {
- regv = rd_regl(port, SIRFUART_INT_EN);
- wr_regl(port, SIRFUART_INT_EN, regv & ~SIRFUART_TX_INT_EN);
- } else {
- wr_regl(port, SIRFUART_INT_EN_CLR, SIRFUART_TX_INT_EN);
- }
+ regv = rd_regl(port, ureg->sirfsoc_int_en_reg);
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ regv & ~uint_en->sirfsoc_txfifo_empty_en);
+ } else
+ wr_regl(port, SIRFUART_INT_EN_CLR,
+ uint_en->sirfsoc_txfifo_empty_en);
+
}
void sirfsoc_uart_start_tx(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
unsigned long regv;
sirfsoc_uart_pio_tx_chars(sirfport, 1);
- wr_regl(port, SIRFUART_TX_FIFO_OP, SIRFUART_TX_FIFO_START);
-
+ wr_regl(port, ureg->sirfsoc_tx_fifo_op, SIRFUART_FIFO_START);
if (!sirfport->is_marco) {
- regv = rd_regl(port, SIRFUART_INT_EN);
- wr_regl(port, SIRFUART_INT_EN, regv | SIRFUART_TX_INT_EN);
- } else {
- wr_regl(port, SIRFUART_INT_EN, SIRFUART_TX_INT_EN);
- }
+ regv = rd_regl(port, ureg->sirfsoc_int_en_reg);
+ wr_regl(port, ureg->sirfsoc_int_en_reg, regv |
+ uint_en->sirfsoc_txfifo_empty_en);
+ } else
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ uint_en->sirfsoc_txfifo_empty_en);
}
static void sirfsoc_uart_stop_rx(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
- unsigned long regv;
-
- wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
-
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
+ unsigned long reg;
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, 0);
if (!sirfport->is_marco) {
- regv = rd_regl(port, SIRFUART_INT_EN);
- wr_regl(port, SIRFUART_INT_EN, regv & ~SIRFUART_RX_IO_INT_EN);
- } else {
- wr_regl(port, SIRFUART_INT_EN_CLR, SIRFUART_RX_IO_INT_EN);
- }
+ reg = rd_regl(port, ureg->sirfsoc_int_en_reg);
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ reg & ~(SIRFUART_RX_IO_INT_EN(port, uint_en)));
+ } else
+ wr_regl(port, SIRFUART_INT_EN_CLR,
+ SIRFUART_RX_IO_INT_EN(port, uint_en));
}
static void sirfsoc_uart_disable_ms(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
unsigned long reg;
sirfport->ms_enabled = 0;
if (!sirfport->hw_flow_ctrl)
return;
- reg = rd_regl(port, SIRFUART_AFC_CTRL);
- wr_regl(port, SIRFUART_AFC_CTRL, reg & ~0x3FF);
-
+ reg = rd_regl(port, ureg->sirfsoc_afc_ctrl);
+ wr_regl(port, ureg->sirfsoc_afc_ctrl, reg & ~0x3FF);
if (!sirfport->is_marco) {
- reg = rd_regl(port, SIRFUART_INT_EN);
- wr_regl(port, SIRFUART_INT_EN, reg & ~SIRFUART_CTS_INT_EN);
- } else {
- wr_regl(port, SIRFUART_INT_EN_CLR, SIRFUART_CTS_INT_EN);
- }
+ reg = rd_regl(port, ureg->sirfsoc_int_en_reg);
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ reg & ~uint_en->sirfsoc_cts_en);
+ } else
+ wr_regl(port, SIRFUART_INT_EN_CLR,
+ uint_en->sirfsoc_cts_en);
}
static void sirfsoc_uart_enable_ms(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
unsigned long reg;
unsigned long flg;
if (!sirfport->hw_flow_ctrl)
return;
- flg = SIRFUART_AFC_RX_EN | SIRFUART_AFC_TX_EN;
- reg = rd_regl(port, SIRFUART_AFC_CTRL);
- wr_regl(port, SIRFUART_AFC_CTRL, reg | flg);
-
+ flg = SIRFUART_AFC_TX_EN | SIRFUART_AFC_RX_EN;
+ reg = rd_regl(port, ureg->sirfsoc_afc_ctrl);
+ wr_regl(port, ureg->sirfsoc_afc_ctrl, reg | flg);
if (!sirfport->is_marco) {
- reg = rd_regl(port, SIRFUART_INT_EN);
- wr_regl(port, SIRFUART_INT_EN, reg | SIRFUART_CTS_INT_EN);
- } else {
- wr_regl(port, SIRFUART_INT_EN, SIRFUART_CTS_INT_EN);
- }
-
+ reg = rd_regl(port, ureg->sirfsoc_int_en_reg);
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ reg | uint_en->sirfsoc_cts_en);
+ } else
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ uint_en->sirfsoc_cts_en);
uart_handle_cts_change(port,
- !(rd_regl(port, SIRFUART_AFC_CTRL) & SIRFUART_CTS_IN_STATUS));
+ !(rd_regl(port, ureg->sirfsoc_afc_ctrl) &
+ SIRFUART_AFC_CTS_STATUS));
sirfport->ms_enabled = 1;
}
static void sirfsoc_uart_break_ctl(struct uart_port *port, int break_state)
{
- unsigned long ulcon = rd_regl(port, SIRFUART_LINE_CTRL);
- if (break_state)
- ulcon |= SIRFUART_SET_BREAK;
- else
- ulcon &= ~SIRFUART_SET_BREAK;
- wr_regl(port, SIRFUART_LINE_CTRL, ulcon);
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
+ unsigned long ulcon = rd_regl(port, ureg->sirfsoc_line_ctrl);
+ if (break_state)
+ ulcon |= SIRFUART_SET_BREAK;
+ else
+ ulcon &= ~SIRFUART_SET_BREAK;
+ wr_regl(port, ureg->sirfsoc_line_ctrl, ulcon);
+ }
}
static unsigned int
sirfsoc_uart_pio_rx_chars(struct uart_port *port, unsigned int max_rx_count)
{
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_fifo_status *ufifo_st = &sirfport->uart_reg->fifo_status;
unsigned int ch, rx_count = 0;
-
- while (!(rd_regl(port, SIRFUART_RX_FIFO_STATUS) &
- SIRFUART_FIFOEMPTY_MASK(port))) {
- ch = rd_regl(port, SIRFUART_RX_FIFO_DATA) | SIRFUART_DUMMY_READ;
+ struct tty_struct *tty;
+ tty = tty_port_tty_get(&port->state->port);
+ if (!tty)
+ return -ENODEV;
+ while (!(rd_regl(port, ureg->sirfsoc_rx_fifo_status) &
+ ufifo_st->ff_empty(port->line))) {
+ ch = rd_regl(port, ureg->sirfsoc_rx_fifo_data) |
+ SIRFUART_DUMMY_READ;
if (unlikely(uart_handle_sysrq_char(port, ch)))
continue;
uart_insert_char(port, 0, 0, ch, TTY_NORMAL);
sirfsoc_uart_pio_tx_chars(struct sirfsoc_uart_port *sirfport, int count)
{
struct uart_port *port = &sirfport->port;
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_fifo_status *ufifo_st = &sirfport->uart_reg->fifo_status;
struct circ_buf *xmit = &port->state->xmit;
unsigned int num_tx = 0;
while (!uart_circ_empty(xmit) &&
- !(rd_regl(port, SIRFUART_TX_FIFO_STATUS) &
- SIRFUART_FIFOFULL_MASK(port)) &&
+ !(rd_regl(port, ureg->sirfsoc_tx_fifo_status) &
+ ufifo_st->ff_full(port->line)) &&
count--) {
- wr_regl(port, SIRFUART_TX_FIFO_DATA, xmit->buf[xmit->tail]);
+ wr_regl(port, ureg->sirfsoc_tx_fifo_data,
+ xmit->buf[xmit->tail]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
port->icount.tx++;
num_tx++;
unsigned long flag = TTY_NORMAL;
struct sirfsoc_uart_port *sirfport = (struct sirfsoc_uart_port *)dev_id;
struct uart_port *port = &sirfport->port;
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_fifo_status *ufifo_st = &sirfport->uart_reg->fifo_status;
+ struct sirfsoc_int_status *uint_st = &sirfport->uart_reg->uart_int_st;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
struct uart_state *state = port->state;
struct circ_buf *xmit = &port->state->xmit;
spin_lock(&port->lock);
- intr_status = rd_regl(port, SIRFUART_INT_STATUS);
- wr_regl(port, SIRFUART_INT_STATUS, intr_status);
- intr_status &= rd_regl(port, SIRFUART_INT_EN);
- if (unlikely(intr_status & (SIRFUART_ERR_INT_STAT))) {
- if (intr_status & SIRFUART_RXD_BREAK) {
+ intr_status = rd_regl(port, ureg->sirfsoc_int_st_reg);
+ wr_regl(port, ureg->sirfsoc_int_st_reg, intr_status);
+ if (unlikely(intr_status & (SIRFUART_ERR_INT_STAT(port, uint_st)))) {
+ if (intr_status & uint_st->sirfsoc_rxd_brk) {
+ port->icount.brk++;
if (uart_handle_break(port))
goto recv_char;
- uart_insert_char(port, intr_status,
- SIRFUART_RX_OFLOW, 0, TTY_BREAK);
- spin_unlock(&port->lock);
- return IRQ_HANDLED;
}
- if (intr_status & SIRFUART_RX_OFLOW)
+ if (intr_status & uint_st->sirfsoc_rx_oflow)
port->icount.overrun++;
- if (intr_status & SIRFUART_FRM_ERR) {
+ if (intr_status & uint_st->sirfsoc_frm_err) {
port->icount.frame++;
flag = TTY_FRAME;
}
- if (intr_status & SIRFUART_PARITY_ERR)
+ if (intr_status & uint_st->sirfsoc_parity_err)
flag = TTY_PARITY;
- wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_RESET);
- wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
- wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_START);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_RESET);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, 0);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_START);
intr_status &= port->read_status_mask;
uart_insert_char(port, intr_status,
- SIRFUART_RX_OFLOW_INT, 0, flag);
+ uint_en->sirfsoc_rx_oflow_en, 0, flag);
+ tty_flip_buffer_push(&state->port);
}
recv_char:
- if (intr_status & SIRFUART_CTS_INT_EN) {
- cts_status = !(rd_regl(port, SIRFUART_AFC_CTRL) &
- SIRFUART_CTS_IN_STATUS);
- if (cts_status != 0) {
- uart_handle_cts_change(port, 1);
- } else {
- uart_handle_cts_change(port, 0);
- wake_up_interruptible(&state->port.delta_msr_wait);
- }
+ if ((sirfport->uart_reg->uart_type == SIRF_REAL_UART) &&
+ (intr_status & SIRFUART_CTS_INT_ST(uint_st))) {
+ cts_status = rd_regl(port, ureg->sirfsoc_afc_ctrl) &
+ SIRFUART_AFC_CTS_STATUS;
+ if (cts_status != 0)
+ cts_status = 0;
+ else
+ cts_status = 1;
+ uart_handle_cts_change(port, cts_status);
+ wake_up_interruptible(&state->port.delta_msr_wait);
}
- if (intr_status & SIRFUART_RX_IO_INT_EN)
+ if (intr_status & SIRFUART_RX_IO_INT_ST(uint_st))
sirfsoc_uart_pio_rx_chars(port, SIRFSOC_UART_IO_RX_MAX_CNT);
- if (intr_status & SIRFUART_TX_INT_EN) {
+ if (intr_status & uint_st->sirfsoc_txfifo_empty) {
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
spin_unlock(&port->lock);
return IRQ_HANDLED;
sirfsoc_uart_pio_tx_chars(sirfport,
SIRFSOC_UART_IO_TX_REASONABLE_CNT);
if ((uart_circ_empty(xmit)) &&
- (rd_regl(port, SIRFUART_TX_FIFO_STATUS) &
- SIRFUART_FIFOEMPTY_MASK(port)))
+ (rd_regl(port, ureg->sirfsoc_tx_fifo_status) &
+ ufifo_st->ff_empty(port->line)))
sirfsoc_uart_stop_tx(port);
}
}
static void sirfsoc_uart_start_rx(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
-
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
+ unsigned long regv;
if (!sirfport->is_marco) {
- unsigned long regv;
- regv = rd_regl(port, SIRFUART_INT_EN);
- wr_regl(port, SIRFUART_INT_EN, regv | SIRFUART_RX_IO_INT_EN);
- } else {
- wr_regl(port, SIRFUART_INT_EN, SIRFUART_RX_IO_INT_EN);
- }
+ regv = rd_regl(port, ureg->sirfsoc_int_en_reg);
+ wr_regl(port, ureg->sirfsoc_int_en_reg, regv |
+ SIRFUART_RX_IO_INT_EN(port, uint_en));
+ } else
+ wr_regl(port, ureg->sirfsoc_int_en_reg,
+ SIRFUART_RX_IO_INT_EN(port, uint_en));
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_RESET);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, 0);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_START);
+}
+
+static unsigned int
+sirfsoc_usp_calc_sample_div(unsigned long set_rate,
+ unsigned long ioclk_rate, unsigned long *sample_reg)
+{
+ unsigned long min_delta = ~0UL;
+ unsigned short sample_div;
+ unsigned long ioclk_div = 0;
+ unsigned long temp_delta;
+
+ for (sample_div = SIRF_MIN_SAMPLE_DIV;
+ sample_div <= SIRF_MAX_SAMPLE_DIV; sample_div++) {
+ temp_delta = ioclk_rate -
+ (ioclk_rate + (set_rate * sample_div) / 2)
+ / (set_rate * sample_div) * set_rate * sample_div;
- wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_RESET);
- wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
- wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_START);
+ temp_delta = (temp_delta > 0) ? temp_delta : -temp_delta;
+ if (temp_delta < min_delta) {
+ ioclk_div = (2 * ioclk_rate /
+ (set_rate * sample_div) + 1) / 2 - 1;
+ if (ioclk_div > SIRF_IOCLK_DIV_MAX)
+ continue;
+ min_delta = temp_delta;
+ *sample_reg = sample_div;
+ if (!temp_delta)
+ break;
+ }
+ }
+ return ioclk_div;
}
static unsigned int
-sirfsoc_calc_sample_div(unsigned long baud_rate,
- unsigned long ioclk_rate, unsigned long *setted_baud)
+sirfsoc_uart_calc_sample_div(unsigned long baud_rate,
+ unsigned long ioclk_rate, unsigned long *set_baud)
{
unsigned long min_delta = ~0UL;
unsigned short sample_div;
regv = regv & (~SIRF_SAMPLE_DIV_MASK);
regv = regv | (sample_div << SIRF_SAMPLE_DIV_SHIFT);
min_delta = temp_delta;
- *setted_baud = baud_tmp;
+ *set_baud = baud_tmp;
}
}
return regv;
struct ktermios *old)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
unsigned long config_reg = 0;
unsigned long baud_rate;
- unsigned long setted_baud;
+ unsigned long set_baud;
unsigned long flags;
unsigned long ic;
unsigned int clk_div_reg = 0;
- unsigned long temp_reg_val;
+ unsigned long temp_reg_val, ioclk_rate;
unsigned long rx_time_out;
int threshold_div;
int temp;
+ u32 data_bit_len, stop_bit_len, len_val;
+ unsigned long sample_div_reg = 0xf;
+ ioclk_rate = port->uartclk;
switch (termios->c_cflag & CSIZE) {
default:
case CS8:
+ data_bit_len = 8;
config_reg |= SIRFUART_DATA_BIT_LEN_8;
break;
case CS7:
+ data_bit_len = 7;
config_reg |= SIRFUART_DATA_BIT_LEN_7;
break;
case CS6:
+ data_bit_len = 6;
config_reg |= SIRFUART_DATA_BIT_LEN_6;
break;
case CS5:
+ data_bit_len = 5;
config_reg |= SIRFUART_DATA_BIT_LEN_5;
break;
}
- if (termios->c_cflag & CSTOPB)
+ if (termios->c_cflag & CSTOPB) {
config_reg |= SIRFUART_STOP_BIT_LEN_2;
- baud_rate = uart_get_baud_rate(port, termios, old, 0, 4000000);
+ stop_bit_len = 2;
+ } else
+ stop_bit_len = 1;
+
spin_lock_irqsave(&port->lock, flags);
- port->read_status_mask = SIRFUART_RX_OFLOW_INT;
+ port->read_status_mask = uint_en->sirfsoc_rx_oflow_en;
port->ignore_status_mask = 0;
- /* read flags */
- if (termios->c_iflag & INPCK)
- port->read_status_mask |=
- SIRFUART_FRM_ERR_INT | SIRFUART_PARITY_ERR_INT;
+ if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
+ if (termios->c_iflag & INPCK)
+ port->read_status_mask |= uint_en->sirfsoc_frm_err_en |
+ uint_en->sirfsoc_parity_err_en;
+ }
+ if (sirfport->uart_reg->uart_type == SIRF_USP_UART) {
+ if (termios->c_iflag & INPCK)
+ port->read_status_mask |= uint_en->sirfsoc_frm_err_en;
+ }
if (termios->c_iflag & (BRKINT | PARMRK))
- port->read_status_mask |= SIRFUART_RXD_BREAK_INT;
- /* ignore flags */
- if (termios->c_iflag & IGNPAR)
+ port->read_status_mask |= uint_en->sirfsoc_rxd_brk_en;
+ if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
+ if (termios->c_iflag & IGNPAR)
+ port->ignore_status_mask |=
+ uint_en->sirfsoc_frm_err_en |
+ uint_en->sirfsoc_parity_err_en;
+ if (termios->c_cflag & PARENB) {
+ if (termios->c_cflag & CMSPAR) {
+ if (termios->c_cflag & PARODD)
+ config_reg |= SIRFUART_STICK_BIT_MARK;
+ else
+ config_reg |= SIRFUART_STICK_BIT_SPACE;
+ } else if (termios->c_cflag & PARODD) {
+ config_reg |= SIRFUART_STICK_BIT_ODD;
+ } else {
+ config_reg |= SIRFUART_STICK_BIT_EVEN;
+ }
+ }
+ }
+ if (sirfport->uart_reg->uart_type == SIRF_USP_UART) {
+ if (termios->c_iflag & IGNPAR)
+ port->ignore_status_mask |=
+ uint_en->sirfsoc_frm_err_en;
+ if (termios->c_cflag & PARENB)
+ dev_warn(port->dev,
+ "USP-UART not support parity err\n");
+ }
+ if (termios->c_iflag & IGNBRK) {
port->ignore_status_mask |=
- SIRFUART_FRM_ERR_INT | SIRFUART_PARITY_ERR_INT;
+ uint_en->sirfsoc_rxd_brk_en;
+ if (termios->c_iflag & IGNPAR)
+ port->ignore_status_mask |=
+ uint_en->sirfsoc_rx_oflow_en;
+ }
if ((termios->c_cflag & CREAD) == 0)
port->ignore_status_mask |= SIRFUART_DUMMY_READ;
- /* enable parity if PARENB is set*/
- if (termios->c_cflag & PARENB) {
- if (termios->c_cflag & CMSPAR) {
- if (termios->c_cflag & PARODD)
- config_reg |= SIRFUART_STICK_BIT_MARK;
- else
- config_reg |= SIRFUART_STICK_BIT_SPACE;
- } else if (termios->c_cflag & PARODD) {
- config_reg |= SIRFUART_STICK_BIT_ODD;
- } else {
- config_reg |= SIRFUART_STICK_BIT_EVEN;
- }
- }
/* Hardware Flow Control Settings */
if (UART_ENABLE_MS(port, termios->c_cflag)) {
if (!sirfport->ms_enabled)
if (sirfport->ms_enabled)
sirfsoc_uart_disable_ms(port);
}
-
- if (port->uartclk == 150000000) {
- /* common rate: fast calculation */
+ baud_rate = uart_get_baud_rate(port, termios, old, 0, 4000000);
+ if (ioclk_rate == 150000000) {
for (ic = 0; ic < SIRF_BAUD_RATE_SUPPORT_NR; ic++)
if (baud_rate == baudrate_to_regv[ic].baud_rate)
clk_div_reg = baudrate_to_regv[ic].reg_val;
}
+ set_baud = baud_rate;
+ if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
+ if (unlikely(clk_div_reg == 0))
+ clk_div_reg = sirfsoc_uart_calc_sample_div(baud_rate,
+ ioclk_rate, &set_baud);
+ wr_regl(port, ureg->sirfsoc_divisor, clk_div_reg);
+ }
+ if (sirfport->uart_reg->uart_type == SIRF_USP_UART) {
+ clk_div_reg = sirfsoc_usp_calc_sample_div(baud_rate,
+ ioclk_rate, &sample_div_reg);
+ sample_div_reg--;
+ set_baud = ((ioclk_rate / (clk_div_reg+1) - 1) /
+ (sample_div_reg + 1));
+ /* setting usp mode 2 */
+ len_val = ((1 << 0) | (1 << 8));
+ len_val |= ((clk_div_reg & 0x3ff) << 21);
+ wr_regl(port, ureg->sirfsoc_mode2,
+ len_val);
- setted_baud = baud_rate;
- /* arbitary rate setting */
- if (unlikely(clk_div_reg == 0))
- clk_div_reg = sirfsoc_calc_sample_div(baud_rate, port->uartclk,
- &setted_baud);
- wr_regl(port, SIRFUART_DIVISOR, clk_div_reg);
-
+ }
if (tty_termios_baud_rate(termios))
- tty_termios_encode_baud_rate(termios, setted_baud, setted_baud);
-
- /* set receive timeout */
- rx_time_out = SIRFSOC_UART_RX_TIMEOUT(baud_rate, 20000);
- rx_time_out = (rx_time_out > 0xFFFF) ? 0xFFFF : rx_time_out;
- config_reg |= SIRFUART_RECV_TIMEOUT(rx_time_out);
- temp_reg_val = rd_regl(port, SIRFUART_TX_FIFO_OP);
- wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
- wr_regl(port, SIRFUART_TX_FIFO_OP,
- temp_reg_val & ~SIRFUART_TX_FIFO_START);
- wr_regl(port, SIRFUART_TX_DMA_IO_CTRL, SIRFUART_TX_MODE_IO);
- wr_regl(port, SIRFUART_RX_DMA_IO_CTRL, SIRFUART_RX_MODE_IO);
- wr_regl(port, SIRFUART_LINE_CTRL, config_reg);
-
+ tty_termios_encode_baud_rate(termios, set_baud, set_baud);
+ /* set receive timeout && data bits len */
+ rx_time_out = SIRFSOC_UART_RX_TIMEOUT(set_baud, 20000);
+ rx_time_out = SIRFUART_RECV_TIMEOUT_VALUE(rx_time_out);
+ temp_reg_val = rd_regl(port, ureg->sirfsoc_tx_fifo_op);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, 0);
+ wr_regl(port, ureg->sirfsoc_tx_fifo_op,
+ (temp_reg_val & ~SIRFUART_FIFO_START));
+ if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
+ config_reg |= SIRFUART_RECV_TIMEOUT(port, rx_time_out);
+ wr_regl(port, ureg->sirfsoc_line_ctrl, config_reg);
+ }
+ if (sirfport->uart_reg->uart_type == SIRF_USP_UART) {
+ /*tx frame ctrl*/
+ len_val = (data_bit_len - 1) << 0;
+ len_val |= (data_bit_len + 1 + stop_bit_len - 1) << 16;
+ len_val |= ((data_bit_len - 1) << 24);
+ len_val |= (((clk_div_reg & 0xc00) >> 10) << 30);
+ wr_regl(port, ureg->sirfsoc_tx_frame_ctrl, len_val);
+ /*rx frame ctrl*/
+ len_val = (data_bit_len - 1) << 0;
+ len_val |= (data_bit_len + 1 + stop_bit_len - 1) << 8;
+ len_val |= (data_bit_len - 1) << 16;
+ len_val |= (((clk_div_reg & 0xf000) >> 12) << 24);
+ wr_regl(port, ureg->sirfsoc_rx_frame_ctrl, len_val);
+ /*async param*/
+ wr_regl(port, ureg->sirfsoc_async_param_reg,
+ (SIRFUART_RECV_TIMEOUT(port, rx_time_out)) |
+ (sample_div_reg & 0x3f) << 16);
+ }
+ wr_regl(port, ureg->sirfsoc_tx_dma_io_ctrl, SIRFUART_IO_MODE);
+ wr_regl(port, ureg->sirfsoc_rx_dma_io_ctrl, SIRFUART_IO_MODE);
/* Reset Rx/Tx FIFO Threshold level for proper baudrate */
- if (baud_rate < 1000000)
+ if (set_baud < 1000000)
threshold_div = 1;
else
threshold_div = 2;
- temp = port->line == 1 ? 16 : 64;
- wr_regl(port, SIRFUART_TX_FIFO_CTRL, temp / threshold_div);
- wr_regl(port, SIRFUART_RX_FIFO_CTRL, temp / threshold_div);
- temp_reg_val |= SIRFUART_TX_FIFO_START;
- wr_regl(port, SIRFUART_TX_FIFO_OP, temp_reg_val);
- uart_update_timeout(port, termios->c_cflag, baud_rate);
+ temp = SIRFUART_FIFO_THD(port);
+ wr_regl(port, ureg->sirfsoc_tx_fifo_ctrl, temp / threshold_div);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_ctrl, temp / threshold_div);
+ temp_reg_val |= SIRFUART_FIFO_START;
+ wr_regl(port, ureg->sirfsoc_tx_fifo_op, temp_reg_val);
+ uart_update_timeout(port, termios->c_cflag, set_baud);
sirfsoc_uart_start_rx(port);
- wr_regl(port, SIRFUART_TX_RX_EN, SIRFUART_TX_EN | SIRFUART_RX_EN);
+ wr_regl(port, ureg->sirfsoc_tx_rx_en, SIRFUART_TX_EN | SIRFUART_RX_EN);
spin_unlock_irqrestore(&port->lock, flags);
}
static void startup_uart_controller(struct uart_port *port)
{
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
unsigned long temp_regv;
int temp;
- temp_regv = rd_regl(port, SIRFUART_TX_DMA_IO_CTRL);
- wr_regl(port, SIRFUART_TX_DMA_IO_CTRL, temp_regv | SIRFUART_TX_MODE_IO);
- temp_regv = rd_regl(port, SIRFUART_RX_DMA_IO_CTRL);
- wr_regl(port, SIRFUART_RX_DMA_IO_CTRL, temp_regv | SIRFUART_RX_MODE_IO);
- wr_regl(port, SIRFUART_TX_DMA_IO_LEN, 0);
- wr_regl(port, SIRFUART_RX_DMA_IO_LEN, 0);
- wr_regl(port, SIRFUART_TX_RX_EN, SIRFUART_RX_EN | SIRFUART_TX_EN);
- wr_regl(port, SIRFUART_TX_FIFO_OP, SIRFUART_TX_FIFO_RESET);
- wr_regl(port, SIRFUART_TX_FIFO_OP, 0);
- wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_RESET);
- wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
- temp = port->line == 1 ? 16 : 64;
- wr_regl(port, SIRFUART_TX_FIFO_CTRL, temp);
- wr_regl(port, SIRFUART_RX_FIFO_CTRL, temp);
+ temp_regv = rd_regl(port, ureg->sirfsoc_tx_dma_io_ctrl);
+ wr_regl(port, ureg->sirfsoc_tx_dma_io_ctrl, temp_regv |
+ SIRFUART_IO_MODE);
+ temp_regv = rd_regl(port, ureg->sirfsoc_rx_dma_io_ctrl);
+ wr_regl(port, ureg->sirfsoc_rx_dma_io_ctrl, temp_regv |
+ SIRFUART_IO_MODE);
+ wr_regl(port, ureg->sirfsoc_tx_dma_io_len, 0);
+ wr_regl(port, ureg->sirfsoc_rx_dma_io_len, 0);
+ wr_regl(port, ureg->sirfsoc_tx_rx_en, SIRFUART_RX_EN | SIRFUART_TX_EN);
+ if (sirfport->uart_reg->uart_type == SIRF_USP_UART)
+ wr_regl(port, ureg->sirfsoc_mode1,
+ SIRFSOC_USP_ENDIAN_CTRL_LSBF |
+ SIRFSOC_USP_EN);
+ wr_regl(port, ureg->sirfsoc_tx_fifo_op, SIRFUART_FIFO_RESET);
+ wr_regl(port, ureg->sirfsoc_tx_fifo_op, 0);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_RESET);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_op, 0);
+ temp = SIRFUART_FIFO_THD(port);
+ wr_regl(port, ureg->sirfsoc_tx_fifo_ctrl, temp);
+ wr_regl(port, ureg->sirfsoc_rx_fifo_ctrl, temp);
}
static int sirfsoc_uart_startup(struct uart_port *port)
static void sirfsoc_uart_shutdown(struct uart_port *port)
{
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
-
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
if (!sirfport->is_marco)
- wr_regl(port, SIRFUART_INT_EN, 0);
+ wr_regl(port, ureg->sirfsoc_int_en_reg, 0);
else
wr_regl(port, SIRFUART_INT_EN_CLR, ~0UL);
static int sirfsoc_uart_request_port(struct uart_port *port)
{
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_uart_param *uart_param = &sirfport->uart_reg->uart_param;
void *ret;
ret = request_mem_region(port->mapbase,
- SIRFUART_MAP_SIZE, SIRFUART_PORT_NAME);
+ SIRFUART_MAP_SIZE, uart_param->port_name);
return ret ? 0 : -EBUSY;
}
};
#ifdef CONFIG_SERIAL_SIRFSOC_CONSOLE
-static int __init sirfsoc_uart_console_setup(struct console *co, char *options)
+static int __init
+sirfsoc_uart_console_setup(struct console *co, char *options)
{
unsigned int baud = 115200;
unsigned int bits = 8;
unsigned int parity = 'n';
unsigned int flow = 'n';
struct uart_port *port = &sirfsoc_uart_ports[co->index].port;
-
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
if (co->index < 0 || co->index >= SIRFSOC_UART_NR)
return -EINVAL;
if (!port->mapbase)
return -ENODEV;
+ /* enable usp in mode1 register */
+ if (sirfport->uart_reg->uart_type == SIRF_USP_UART)
+ wr_regl(port, ureg->sirfsoc_mode1, SIRFSOC_USP_EN |
+ SIRFSOC_USP_ENDIAN_CTRL_LSBF);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
port->cons = co;
+
return uart_set_options(port, co, baud, parity, bits, flow);
}
static void sirfsoc_uart_console_putchar(struct uart_port *port, int ch)
{
+ struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_fifo_status *ufifo_st = &sirfport->uart_reg->fifo_status;
while (rd_regl(port,
- SIRFUART_TX_FIFO_STATUS) & SIRFUART_FIFOFULL_MASK(port))
+ ureg->sirfsoc_tx_fifo_status) & ufifo_st->ff_full(port->line))
cpu_relax();
- wr_regb(port, SIRFUART_TX_FIFO_DATA, ch);
+ wr_regb(port, ureg->sirfsoc_tx_fifo_data, ch);
}
static void sirfsoc_uart_console_write(struct console *co, const char *s,
#endif
};
+static struct of_device_id sirfsoc_uart_ids[] = {
+ { .compatible = "sirf,prima2-uart", .data = &sirfsoc_uart,},
+ { .compatible = "sirf,marco-uart", .data = &sirfsoc_uart},
+ { .compatible = "sirf,prima2-usp-uart", .data = &sirfsoc_usp},
+ {}
+};
+MODULE_DEVICE_TABLE(of, sirfsoc_uart_ids);
+
int sirfsoc_uart_probe(struct platform_device *pdev)
{
struct sirfsoc_uart_port *sirfport;
struct uart_port *port;
struct resource *res;
int ret;
+ const struct of_device_id *match;
+ match = of_match_node(sirfsoc_uart_ids, pdev->dev.of_node);
if (of_property_read_u32(pdev->dev.of_node, "cell-index", &pdev->id)) {
dev_err(&pdev->dev,
"Unable to find cell-index in uart node.\n");
ret = -EFAULT;
goto err;
}
-
+ if (of_device_is_compatible(pdev->dev.of_node, "sirf,prima2-usp-uart"))
+ pdev->id += ((struct sirfsoc_uart_register *)
+ match->data)->uart_param.register_uart_nr;
sirfport = &sirfsoc_uart_ports[pdev->id];
port = &sirfport->port;
port->dev = &pdev->dev;
port->private_data = sirfport;
+ sirfport->uart_reg = (struct sirfsoc_uart_register *)match->data;
+ if (of_device_is_compatible(pdev->dev.of_node, "sirf,prima2-uart"))
+ sirfport->uart_reg->uart_type = SIRF_REAL_UART;
+ if (of_device_is_compatible(pdev->dev.of_node, "sirf,prima2-usp-uart"))
+ sirfport->uart_reg->uart_type = SIRF_USP_UART;
if (of_device_is_compatible(pdev->dev.of_node, "sirf,marco-uart"))
sirfport->is_marco = true;
if (sirfport->hw_flow_ctrl) {
sirfport->p = pinctrl_get_select_default(&pdev->dev);
- if (IS_ERR(sirfport->p)) {
- ret = PTR_ERR(sirfport->p);
+ ret = IS_ERR(sirfport->p);
+ if (ret)
goto err;
- }
}
sirfport->clk = clk_get(&pdev->dev, NULL);
return 0;
}
-static struct of_device_id sirfsoc_uart_ids[] = {
- { .compatible = "sirf,prima2-uart", },
- { .compatible = "sirf,marco-uart", },
- {}
-};
-MODULE_DEVICE_TABLE(of, sirfsoc_uart_ids);
-
static struct platform_driver sirfsoc_uart_driver = {
.probe = sirfsoc_uart_probe,
.remove = sirfsoc_uart_remove,
* Licensed under GPLv2 or later.
*/
#include <linux/bitops.h>
+struct sirfsoc_uart_param {
+ const char *uart_name;
+ const char *port_name;
+ u32 uart_nr;
+ u32 register_uart_nr;
+};
+
+struct sirfsoc_register {
+ /* hardware uart specific */
+ u32 sirfsoc_line_ctrl;
+ u32 sirfsoc_divisor;
+ /* uart - usp common */
+ u32 sirfsoc_tx_rx_en;
+ u32 sirfsoc_int_en_reg;
+ u32 sirfsoc_int_st_reg;
+ u32 sirfsoc_tx_dma_io_ctrl;
+ u32 sirfsoc_tx_dma_io_len;
+ u32 sirfsoc_tx_fifo_ctrl;
+ u32 sirfsoc_tx_fifo_level_chk;
+ u32 sirfsoc_tx_fifo_op;
+ u32 sirfsoc_tx_fifo_status;
+ u32 sirfsoc_tx_fifo_data;
+ u32 sirfsoc_rx_dma_io_ctrl;
+ u32 sirfsoc_rx_dma_io_len;
+ u32 sirfsoc_rx_fifo_ctrl;
+ u32 sirfsoc_rx_fifo_level_chk;
+ u32 sirfsoc_rx_fifo_op;
+ u32 sirfsoc_rx_fifo_status;
+ u32 sirfsoc_rx_fifo_data;
+ u32 sirfsoc_afc_ctrl;
+ u32 sirfsoc_swh_dma_io;
+ /* hardware usp specific */
+ u32 sirfsoc_mode1;
+ u32 sirfsoc_mode2;
+ u32 sirfsoc_tx_frame_ctrl;
+ u32 sirfsoc_rx_frame_ctrl;
+ u32 sirfsoc_async_param_reg;
+};
+
+typedef u32 (*fifo_full_mask)(int line);
+typedef u32 (*fifo_empty_mask)(int line);
+
+struct sirfsoc_fifo_status {
+ fifo_full_mask ff_full;
+ fifo_empty_mask ff_empty;
+};
+
+struct sirfsoc_int_en {
+ u32 sirfsoc_rx_done_en;
+ u32 sirfsoc_tx_done_en;
+ u32 sirfsoc_rx_oflow_en;
+ u32 sirfsoc_tx_allout_en;
+ u32 sirfsoc_rx_io_dma_en;
+ u32 sirfsoc_tx_io_dma_en;
+ u32 sirfsoc_rxfifo_full_en;
+ u32 sirfsoc_txfifo_empty_en;
+ u32 sirfsoc_rxfifo_thd_en;
+ u32 sirfsoc_txfifo_thd_en;
+ u32 sirfsoc_frm_err_en;
+ u32 sirfsoc_rxd_brk_en;
+ u32 sirfsoc_rx_timeout_en;
+ u32 sirfsoc_parity_err_en;
+ u32 sirfsoc_cts_en;
+ u32 sirfsoc_rts_en;
+};
+
+struct sirfsoc_int_status {
+ u32 sirfsoc_rx_done;
+ u32 sirfsoc_tx_done;
+ u32 sirfsoc_rx_oflow;
+ u32 sirfsoc_tx_allout;
+ u32 sirfsoc_rx_io_dma;
+ u32 sirfsoc_tx_io_dma;
+ u32 sirfsoc_rxfifo_full;
+ u32 sirfsoc_txfifo_empty;
+ u32 sirfsoc_rxfifo_thd;
+ u32 sirfsoc_txfifo_thd;
+ u32 sirfsoc_frm_err;
+ u32 sirfsoc_rxd_brk;
+ u32 sirfsoc_rx_timeout;
+ u32 sirfsoc_parity_err;
+ u32 sirfsoc_cts;
+ u32 sirfsoc_rts;
+};
+
+enum sirfsoc_uart_type {
+ SIRF_REAL_UART,
+ SIRF_USP_UART,
+};
+
+struct sirfsoc_uart_register {
+ struct sirfsoc_register uart_reg;
+ struct sirfsoc_int_en uart_int_en;
+ struct sirfsoc_int_status uart_int_st;
+ struct sirfsoc_fifo_status fifo_status;
+ struct sirfsoc_uart_param uart_param;
+ enum sirfsoc_uart_type uart_type;
+};
-/* UART Register Offset Define */
-#define SIRFUART_LINE_CTRL 0x0040
-#define SIRFUART_TX_RX_EN 0x004c
-#define SIRFUART_DIVISOR 0x0050
-#define SIRFUART_INT_EN 0x0054
-#define SIRFUART_INT_STATUS 0x0058
-#define SIRFUART_INT_EN_CLR 0x0060
-#define SIRFUART_TX_DMA_IO_CTRL 0x0100
-#define SIRFUART_TX_DMA_IO_LEN 0x0104
-#define SIRFUART_TX_FIFO_CTRL 0x0108
-#define SIRFUART_TX_FIFO_LEVEL_CHK 0x010C
-#define SIRFUART_TX_FIFO_OP 0x0110
-#define SIRFUART_TX_FIFO_STATUS 0x0114
-#define SIRFUART_TX_FIFO_DATA 0x0118
-#define SIRFUART_RX_DMA_IO_CTRL 0x0120
-#define SIRFUART_RX_DMA_IO_LEN 0x0124
-#define SIRFUART_RX_FIFO_CTRL 0x0128
-#define SIRFUART_RX_FIFO_LEVEL_CHK 0x012C
-#define SIRFUART_RX_FIFO_OP 0x0130
-#define SIRFUART_RX_FIFO_STATUS 0x0134
-#define SIRFUART_RX_FIFO_DATA 0x0138
-#define SIRFUART_AFC_CTRL 0x0140
-#define SIRFUART_SWH_DMA_IO 0x0148
-
-/* UART Line Control Register */
+u32 usp_ff_full(int line)
+{
+ return 0x80;
+}
+u32 usp_ff_empty(int line)
+{
+ return 0x100;
+}
+u32 uart_ff_full(int line)
+{
+ return (line == 1) ? (0x20) : (0x80);
+}
+u32 uart_ff_empty(int line)
+{
+ return (line == 1) ? (0x40) : (0x100);
+}
+struct sirfsoc_uart_register sirfsoc_usp = {
+ .uart_reg = {
+ .sirfsoc_mode1 = 0x0000,
+ .sirfsoc_mode2 = 0x0004,
+ .sirfsoc_tx_frame_ctrl = 0x0008,
+ .sirfsoc_rx_frame_ctrl = 0x000c,
+ .sirfsoc_tx_rx_en = 0x0010,
+ .sirfsoc_int_en_reg = 0x0014,
+ .sirfsoc_int_st_reg = 0x0018,
+ .sirfsoc_async_param_reg = 0x0024,
+ .sirfsoc_tx_dma_io_ctrl = 0x0100,
+ .sirfsoc_tx_dma_io_len = 0x0104,
+ .sirfsoc_tx_fifo_ctrl = 0x0108,
+ .sirfsoc_tx_fifo_level_chk = 0x010c,
+ .sirfsoc_tx_fifo_op = 0x0110,
+ .sirfsoc_tx_fifo_status = 0x0114,
+ .sirfsoc_tx_fifo_data = 0x0118,
+ .sirfsoc_rx_dma_io_ctrl = 0x0120,
+ .sirfsoc_rx_dma_io_len = 0x0124,
+ .sirfsoc_rx_fifo_ctrl = 0x0128,
+ .sirfsoc_rx_fifo_level_chk = 0x012c,
+ .sirfsoc_rx_fifo_op = 0x0130,
+ .sirfsoc_rx_fifo_status = 0x0134,
+ .sirfsoc_rx_fifo_data = 0x0138,
+ },
+ .uart_int_en = {
+ .sirfsoc_rx_done_en = BIT(0),
+ .sirfsoc_tx_done_en = BIT(1),
+ .sirfsoc_rx_oflow_en = BIT(2),
+ .sirfsoc_tx_allout_en = BIT(3),
+ .sirfsoc_rx_io_dma_en = BIT(4),
+ .sirfsoc_tx_io_dma_en = BIT(5),
+ .sirfsoc_rxfifo_full_en = BIT(6),
+ .sirfsoc_txfifo_empty_en = BIT(7),
+ .sirfsoc_rxfifo_thd_en = BIT(8),
+ .sirfsoc_txfifo_thd_en = BIT(9),
+ .sirfsoc_frm_err_en = BIT(10),
+ .sirfsoc_rx_timeout_en = BIT(11),
+ .sirfsoc_rxd_brk_en = BIT(15),
+ },
+ .uart_int_st = {
+ .sirfsoc_rx_done = BIT(0),
+ .sirfsoc_tx_done = BIT(1),
+ .sirfsoc_rx_oflow = BIT(2),
+ .sirfsoc_tx_allout = BIT(3),
+ .sirfsoc_rx_io_dma = BIT(4),
+ .sirfsoc_tx_io_dma = BIT(5),
+ .sirfsoc_rxfifo_full = BIT(6),
+ .sirfsoc_txfifo_empty = BIT(7),
+ .sirfsoc_rxfifo_thd = BIT(8),
+ .sirfsoc_txfifo_thd = BIT(9),
+ .sirfsoc_frm_err = BIT(10),
+ .sirfsoc_rx_timeout = BIT(11),
+ .sirfsoc_rxd_brk = BIT(15),
+ },
+ .fifo_status = {
+ .ff_full = usp_ff_full,
+ .ff_empty = usp_ff_empty,
+ },
+ .uart_param = {
+ .uart_name = "ttySiRF",
+ .port_name = "sirfsoc-uart",
+ .uart_nr = 2,
+ .register_uart_nr = 3,
+ },
+};
+
+struct sirfsoc_uart_register sirfsoc_uart = {
+ .uart_reg = {
+ .sirfsoc_line_ctrl = 0x0040,
+ .sirfsoc_tx_rx_en = 0x004c,
+ .sirfsoc_divisor = 0x0050,
+ .sirfsoc_int_en_reg = 0x0054,
+ .sirfsoc_int_st_reg = 0x0058,
+ .sirfsoc_tx_dma_io_ctrl = 0x0100,
+ .sirfsoc_tx_dma_io_len = 0x0104,
+ .sirfsoc_tx_fifo_ctrl = 0x0108,
+ .sirfsoc_tx_fifo_level_chk = 0x010c,
+ .sirfsoc_tx_fifo_op = 0x0110,
+ .sirfsoc_tx_fifo_status = 0x0114,
+ .sirfsoc_tx_fifo_data = 0x0118,
+ .sirfsoc_rx_dma_io_ctrl = 0x0120,
+ .sirfsoc_rx_dma_io_len = 0x0124,
+ .sirfsoc_rx_fifo_ctrl = 0x0128,
+ .sirfsoc_rx_fifo_level_chk = 0x012c,
+ .sirfsoc_rx_fifo_op = 0x0130,
+ .sirfsoc_rx_fifo_status = 0x0134,
+ .sirfsoc_rx_fifo_data = 0x0138,
+ .sirfsoc_afc_ctrl = 0x0140,
+ .sirfsoc_swh_dma_io = 0x0148,
+ },
+ .uart_int_en = {
+ .sirfsoc_rx_done_en = BIT(0),
+ .sirfsoc_tx_done_en = BIT(1),
+ .sirfsoc_rx_oflow_en = BIT(2),
+ .sirfsoc_tx_allout_en = BIT(3),
+ .sirfsoc_rx_io_dma_en = BIT(4),
+ .sirfsoc_tx_io_dma_en = BIT(5),
+ .sirfsoc_rxfifo_full_en = BIT(6),
+ .sirfsoc_txfifo_empty_en = BIT(7),
+ .sirfsoc_rxfifo_thd_en = BIT(8),
+ .sirfsoc_txfifo_thd_en = BIT(9),
+ .sirfsoc_frm_err_en = BIT(10),
+ .sirfsoc_rxd_brk_en = BIT(11),
+ .sirfsoc_rx_timeout_en = BIT(12),
+ .sirfsoc_parity_err_en = BIT(13),
+ .sirfsoc_cts_en = BIT(14),
+ .sirfsoc_rts_en = BIT(15),
+ },
+ .uart_int_st = {
+ .sirfsoc_rx_done = BIT(0),
+ .sirfsoc_tx_done = BIT(1),
+ .sirfsoc_rx_oflow = BIT(2),
+ .sirfsoc_tx_allout = BIT(3),
+ .sirfsoc_rx_io_dma = BIT(4),
+ .sirfsoc_tx_io_dma = BIT(5),
+ .sirfsoc_rxfifo_full = BIT(6),
+ .sirfsoc_txfifo_empty = BIT(7),
+ .sirfsoc_rxfifo_thd = BIT(8),
+ .sirfsoc_txfifo_thd = BIT(9),
+ .sirfsoc_frm_err = BIT(10),
+ .sirfsoc_rxd_brk = BIT(11),
+ .sirfsoc_rx_timeout = BIT(12),
+ .sirfsoc_parity_err = BIT(13),
+ .sirfsoc_cts = BIT(14),
+ .sirfsoc_rts = BIT(15),
+ },
+ .fifo_status = {
+ .ff_full = uart_ff_full,
+ .ff_empty = uart_ff_empty,
+ },
+ .uart_param = {
+ .uart_name = "ttySiRF",
+ .port_name = "sirfsoc_uart",
+ .uart_nr = 3,
+ .register_uart_nr = 0,
+ },
+};
+/* uart io ctrl */
#define SIRFUART_DATA_BIT_LEN_MASK 0x3
#define SIRFUART_DATA_BIT_LEN_5 BIT(0)
#define SIRFUART_DATA_BIT_LEN_6 1
#define SIRFUART_LOOP_BACK BIT(7)
#define SIRFUART_PARITY_MASK (7 << 3)
#define SIRFUART_DUMMY_READ BIT(16)
-
-#define SIRFSOC_UART_RX_TIMEOUT(br, to) (((br) * (((to) + 999) / 1000)) / 1000)
-#define SIRFUART_RECV_TIMEOUT_MASK (0xFFFF << 16)
-#define SIRFUART_RECV_TIMEOUT(x) (((x) & 0xFFFF) << 16)
-
-/* UART Auto Flow Control */
-#define SIRFUART_AFC_RX_THD_MASK 0x000000FF
+#define SIRFUART_AFC_CTRL_RX_THD 0x70
#define SIRFUART_AFC_RX_EN BIT(8)
#define SIRFUART_AFC_TX_EN BIT(9)
-#define SIRFUART_CTS_CTRL BIT(10)
-#define SIRFUART_RTS_CTRL BIT(11)
-#define SIRFUART_CTS_IN_STATUS BIT(12)
-#define SIRFUART_RTS_OUT_STATUS BIT(13)
-
-/* UART Interrupt Enable Register */
-#define SIRFUART_RX_DONE_INT BIT(0)
-#define SIRFUART_TX_DONE_INT BIT(1)
-#define SIRFUART_RX_OFLOW_INT BIT(2)
-#define SIRFUART_TX_ALLOUT_INT BIT(3)
-#define SIRFUART_RX_IO_DMA_INT BIT(4)
-#define SIRFUART_TX_IO_DMA_INT BIT(5)
-#define SIRFUART_RXFIFO_FULL_INT BIT(6)
-#define SIRFUART_TXFIFO_EMPTY_INT BIT(7)
-#define SIRFUART_RXFIFO_THD_INT BIT(8)
-#define SIRFUART_TXFIFO_THD_INT BIT(9)
-#define SIRFUART_FRM_ERR_INT BIT(10)
-#define SIRFUART_RXD_BREAK_INT BIT(11)
-#define SIRFUART_RX_TIMEOUT_INT BIT(12)
-#define SIRFUART_PARITY_ERR_INT BIT(13)
-#define SIRFUART_CTS_INT_EN BIT(14)
-#define SIRFUART_RTS_INT_EN BIT(15)
-
-/* UART Interrupt Status Register */
-#define SIRFUART_RX_DONE BIT(0)
-#define SIRFUART_TX_DONE BIT(1)
-#define SIRFUART_RX_OFLOW BIT(2)
-#define SIRFUART_TX_ALL_EMPTY BIT(3)
-#define SIRFUART_DMA_IO_RX_DONE BIT(4)
-#define SIRFUART_DMA_IO_TX_DONE BIT(5)
-#define SIRFUART_RXFIFO_FULL BIT(6)
-#define SIRFUART_TXFIFO_EMPTY BIT(7)
-#define SIRFUART_RXFIFO_THD_REACH BIT(8)
-#define SIRFUART_TXFIFO_THD_REACH BIT(9)
-#define SIRFUART_FRM_ERR BIT(10)
-#define SIRFUART_RXD_BREAK BIT(11)
-#define SIRFUART_RX_TIMEOUT BIT(12)
-#define SIRFUART_PARITY_ERR BIT(13)
-#define SIRFUART_CTS_CHANGE BIT(14)
-#define SIRFUART_RTS_CHANGE BIT(15)
-#define SIRFUART_PLUG_IN BIT(16)
-
-#define SIRFUART_ERR_INT_STAT \
- (SIRFUART_RX_OFLOW | \
- SIRFUART_FRM_ERR | \
- SIRFUART_RXD_BREAK | \
- SIRFUART_PARITY_ERR)
-#define SIRFUART_ERR_INT_EN \
- (SIRFUART_RX_OFLOW_INT | \
- SIRFUART_FRM_ERR_INT | \
- SIRFUART_RXD_BREAK_INT | \
- SIRFUART_PARITY_ERR_INT)
-#define SIRFUART_TX_INT_EN SIRFUART_TXFIFO_EMPTY_INT
-#define SIRFUART_RX_IO_INT_EN \
- (SIRFUART_RX_TIMEOUT_INT | \
- SIRFUART_RXFIFO_THD_INT | \
- SIRFUART_RXFIFO_FULL_INT | \
- SIRFUART_ERR_INT_EN)
-
+#define SIRFUART_AFC_CTS_CTRL BIT(10)
+#define SIRFUART_AFC_RTS_CTRL BIT(11)
+#define SIRFUART_AFC_CTS_STATUS BIT(12)
+#define SIRFUART_AFC_RTS_STATUS BIT(13)
/* UART FIFO Register */
-#define SIRFUART_TX_FIFO_STOP 0x0
-#define SIRFUART_TX_FIFO_RESET 0x1
-#define SIRFUART_TX_FIFO_START 0x2
-#define SIRFUART_RX_FIFO_STOP 0x0
-#define SIRFUART_RX_FIFO_RESET 0x1
-#define SIRFUART_RX_FIFO_START 0x2
-#define SIRFUART_TX_MODE_DMA 0
-#define SIRFUART_TX_MODE_IO 1
-#define SIRFUART_RX_MODE_DMA 0
-#define SIRFUART_RX_MODE_IO 1
-
-#define SIRFUART_RX_EN 0x1
-#define SIRFUART_TX_EN 0x2
+#define SIRFUART_FIFO_STOP 0x0
+#define SIRFUART_FIFO_RESET BIT(0)
+#define SIRFUART_FIFO_START BIT(1)
+
+#define SIRFUART_RX_EN BIT(0)
+#define SIRFUART_TX_EN BIT(1)
+
+#define SIRFUART_IO_MODE BIT(0)
+#define SIRFUART_DMA_MODE 0x0
+
+/* Macro Specific*/
+#define SIRFUART_INT_EN_CLR 0x0060
+/* Baud Rate Calculation */
+#define SIRF_MIN_SAMPLE_DIV 0xf
+#define SIRF_MAX_SAMPLE_DIV 0x3f
+#define SIRF_IOCLK_DIV_MAX 0xffff
+#define SIRF_SAMPLE_DIV_SHIFT 16
+#define SIRF_IOCLK_DIV_MASK 0xffff
+#define SIRF_SAMPLE_DIV_MASK 0x3f0000
+#define SIRF_BAUD_RATE_SUPPORT_NR 18
+
+/* USP SPEC */
+#define SIRFSOC_USP_ENDIAN_CTRL_LSBF BIT(4)
+#define SIRFSOC_USP_EN BIT(5)
+
+/* USP-UART Common */
+#define SIRFSOC_UART_RX_TIMEOUT(br, to) (((br) * (((to) + 999) / 1000)) / 1000)
+#define SIRFUART_RECV_TIMEOUT_VALUE(x) \
+ (((x) > 0xFFFF) ? 0xFFFF : ((x) & 0xFFFF))
+#define SIRFUART_RECV_TIMEOUT(port, x) \
+ (((port)->line > 2) ? (x & 0xFFFF) : ((x) & 0xFFFF) << 16)
+#define SIRFUART_FIFO_THD(port) ((port->line) == 1 ? 16 : 64)
+#define SIRFUART_ERR_INT_STAT(port, unit_st) \
+ (uint_st->sirfsoc_rx_oflow | \
+ uint_st->sirfsoc_frm_err | \
+ uint_st->sirfsoc_rxd_brk | \
+ ((port->line > 2) ? 0 : uint_st->sirfsoc_parity_err))
+#define SIRFUART_RX_IO_INT_EN(port, uint_en) \
+ (uint_en->sirfsoc_rx_timeout_en |\
+ uint_en->sirfsoc_rxfifo_thd_en |\
+ uint_en->sirfsoc_rxfifo_full_en |\
+ uint_en->sirfsoc_frm_err_en |\
+ uint_en->sirfsoc_rx_oflow_en |\
+ uint_en->sirfsoc_rxd_brk_en |\
+ ((port->line > 2) ? 0 : uint_en->sirfsoc_parity_err_en))
+#define SIRFUART_RX_IO_INT_ST(uint_st) \
+ (uint_st->sirfsoc_rx_timeout |\
+ uint_st->sirfsoc_rxfifo_thd |\
+ uint_st->sirfsoc_rxfifo_full)
+#define SIRFUART_CTS_INT_ST(uint_st) (uint_st->sirfsoc_cts)
/* Generic Definitions */
#define SIRFSOC_UART_NAME "ttySiRF"
#define SIRFSOC_UART_MAJOR 0
struct clk *clk;
/* for SiRFmarco, there are SET/CLR for UART_INT_EN */
bool is_marco;
+ struct sirfsoc_uart_register *uart_reg;
};
/* Hardware Flow Control */
projects / users / willy / linux.git / commitdiff