diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 313 |
1 files changed, 159 insertions, 154 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 2a8f5281..e7c337d 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -88,37 +88,6 @@ static void atmel_stop_rx(struct uart_port *port); #define ATMEL_ISR_PASS_LIMIT 256 -/* UART registers. CR is write-only, hence no GET macro */ -#define UART_PUT_CR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_CR) -#define UART_GET_MR(port) __raw_readl((port)->membase + ATMEL_US_MR) -#define UART_PUT_MR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_MR) -#define UART_PUT_IER(port,v) __raw_writel(v, (port)->membase + ATMEL_US_IER) -#define UART_PUT_IDR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_IDR) -#define UART_GET_IMR(port) __raw_readl((port)->membase + ATMEL_US_IMR) -#define UART_GET_CSR(port) __raw_readl((port)->membase + ATMEL_US_CSR) -#define UART_GET_CHAR(port) __raw_readl((port)->membase + ATMEL_US_RHR) -#define UART_PUT_CHAR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_THR) -#define UART_GET_BRGR(port) __raw_readl((port)->membase + ATMEL_US_BRGR) -#define UART_PUT_BRGR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_BRGR) -#define UART_PUT_RTOR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_RTOR) -#define UART_PUT_TTGR(port, v) __raw_writel(v, (port)->membase + ATMEL_US_TTGR) -#define UART_GET_IP_NAME(port) __raw_readl((port)->membase + ATMEL_US_NAME) -#define UART_GET_IP_VERSION(port) __raw_readl((port)->membase + ATMEL_US_VERSION) - - /* PDC registers */ -#define UART_PUT_PTCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_PTCR) -#define UART_GET_PTSR(port) __raw_readl((port)->membase + ATMEL_PDC_PTSR) - -#define UART_PUT_RPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RPR) -#define UART_GET_RPR(port) __raw_readl((port)->membase + ATMEL_PDC_RPR) -#define UART_PUT_RCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RCR) -#define UART_PUT_RNPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RNPR) -#define UART_PUT_RNCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RNCR) - -#define UART_PUT_TPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_TPR) -#define UART_PUT_TCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_TCR) -#define UART_GET_TCR(port) __raw_readl((port)->membase + ATMEL_PDC_TCR) - struct atmel_dma_buffer { unsigned char *buf; dma_addr_t dma_addr; @@ -212,6 +181,16 @@ to_atmel_uart_port(struct uart_port *uart) return container_of(uart, struct atmel_uart_port, uart); } +static inline u32 atmel_uart_readl(struct uart_port *port, u32 reg) +{ + return __raw_readl(port->membase + reg); +} + +static inline void atmel_uart_writel(struct uart_port *port, u32 reg, u32 value) +{ + __raw_writel(value, port->membase + reg); +} + #ifdef CONFIG_SERIAL_ATMEL_PDC static bool atmel_use_pdc_rx(struct uart_port *port) { @@ -257,7 +236,7 @@ static unsigned int atmel_get_lines_status(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status, ret = 0; - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); mctrl_gpio_get(atmel_port->gpios, &ret); @@ -304,9 +283,9 @@ static int atmel_config_rs485(struct uart_port *port, unsigned int mode; /* Disable interrupts */ - UART_PUT_IDR(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); - mode = UART_GET_MR(port); + mode = atmel_uart_readl(port, ATMEL_US_MR); /* Resetting serial mode to RS232 (0x0) */ mode &= ~ATMEL_US_USMODE; @@ -316,7 +295,8 @@ static int atmel_config_rs485(struct uart_port *port, if (rs485conf->flags & SER_RS485_ENABLED) { dev_dbg(port->dev, "Setting UART to RS485\n"); atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; - UART_PUT_TTGR(port, rs485conf->delay_rts_after_send); + atmel_uart_writel(port, ATMEL_US_TTGR, + rs485conf->delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else { dev_dbg(port->dev, "Setting UART to RS232\n"); @@ -326,10 +306,10 @@ static int atmel_config_rs485(struct uart_port *port, else atmel_port->tx_done_mask = ATMEL_US_TXRDY; } - UART_PUT_MR(port, mode); + atmel_uart_writel(port, ATMEL_US_MR, mode); /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); return 0; } @@ -339,7 +319,9 @@ static int atmel_config_rs485(struct uart_port *port, */ static u_int atmel_tx_empty(struct uart_port *port) { - return (UART_GET_CSR(port) & ATMEL_US_TXEMPTY) ? TIOCSER_TEMT : 0; + return (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXEMPTY) ? + TIOCSER_TEMT : + 0; } /* @@ -348,13 +330,14 @@ static u_int atmel_tx_empty(struct uart_port *port) static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) { unsigned int control = 0; - unsigned int mode = UART_GET_MR(port); + unsigned int mode = atmel_uart_readl(port, ATMEL_US_MR); unsigned int rts_paused, rts_ready; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); /* override mode to RS485 if needed, otherwise keep the current mode */ if (port->rs485.flags & SER_RS485_ENABLED) { - UART_PUT_TTGR(port, port->rs485.delay_rts_after_send); + atmel_uart_writel(port, ATMEL_US_TTGR, + port->rs485.delay_rts_after_send); mode &= ~ATMEL_US_USMODE; mode |= ATMEL_US_USMODE_RS485; } @@ -384,7 +367,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) else control |= ATMEL_US_DTRDIS; - UART_PUT_CR(port, control); + atmel_uart_writel(port, ATMEL_US_CR, control); mctrl_gpio_set(atmel_port->gpios, mctrl); @@ -395,7 +378,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) else mode |= ATMEL_US_CHMODE_NORMAL; - UART_PUT_MR(port, mode); + atmel_uart_writel(port, ATMEL_US_MR, mode); } /* @@ -406,7 +389,7 @@ static u_int atmel_get_mctrl(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int ret = 0, status; - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); /* * The control signals are active low. @@ -432,10 +415,10 @@ static void atmel_stop_tx(struct uart_port *port) if (atmel_use_pdc_tx(port)) { /* disable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); } /* Disable interrupts */ - UART_PUT_IDR(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) @@ -450,7 +433,7 @@ static void atmel_start_tx(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (atmel_use_pdc_tx(port)) { - if (UART_GET_PTSR(port) & ATMEL_PDC_TXTEN) + if (atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN) /* The transmitter is already running. Yes, we really need this.*/ return; @@ -460,10 +443,10 @@ static void atmel_start_tx(struct uart_port *port) atmel_stop_rx(port); /* re-enable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); } /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); } /* @@ -471,17 +454,19 @@ static void atmel_start_tx(struct uart_port *port) */ static void atmel_start_rx(struct uart_port *port) { - UART_PUT_CR(port, ATMEL_US_RSTSTA); /* reset status and receiver */ + /* reset status and receiver */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); - UART_PUT_CR(port, ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXEN); if (atmel_use_pdc_rx(port)) { /* enable PDC controller */ - UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | - port->read_status_mask); - UART_PUT_PTCR(port, ATMEL_PDC_RXTEN); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | + port->read_status_mask); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN); } else { - UART_PUT_IER(port, ATMEL_US_RXRDY); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY); } } @@ -490,15 +475,16 @@ static void atmel_start_rx(struct uart_port *port) */ static void atmel_stop_rx(struct uart_port *port) { - UART_PUT_CR(port, ATMEL_US_RXDIS); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXDIS); if (atmel_use_pdc_rx(port)) { /* disable PDC receive */ - UART_PUT_PTCR(port, ATMEL_PDC_RXTDIS); - UART_PUT_IDR(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | - port->read_status_mask); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | + port->read_status_mask); } else { - UART_PUT_IDR(port, ATMEL_US_RXRDY); + atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXRDY); } } @@ -538,7 +524,7 @@ static void atmel_enable_ms(struct uart_port *port) else ier |= ATMEL_US_DCDIC; - UART_PUT_IER(port, ier); + atmel_uart_writel(port, ATMEL_US_IER, ier); } /* @@ -577,7 +563,7 @@ static void atmel_disable_ms(struct uart_port *port) else idr |= ATMEL_US_DCDIC; - UART_PUT_IDR(port, idr); + atmel_uart_writel(port, ATMEL_US_IDR, idr); } /* @@ -586,9 +572,11 @@ static void atmel_disable_ms(struct uart_port *port) static void atmel_break_ctl(struct uart_port *port, int break_state) { if (break_state != 0) - UART_PUT_CR(port, ATMEL_US_STTBRK); /* start break */ + /* start break */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTBRK); else - UART_PUT_CR(port, ATMEL_US_STPBRK); /* stop break */ + /* stop break */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STPBRK); } /* @@ -622,7 +610,7 @@ atmel_buffer_rx_char(struct uart_port *port, unsigned int status, static void atmel_pdc_rxerr(struct uart_port *port, unsigned int status) { /* clear error */ - UART_PUT_CR(port, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); if (status & ATMEL_US_RXBRK) { /* ignore side-effect */ @@ -645,9 +633,9 @@ static void atmel_rx_chars(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status, ch; - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); while (status & ATMEL_US_RXRDY) { - ch = UART_GET_CHAR(port); + ch = atmel_uart_readl(port, ATMEL_US_RHR); /* * note that the error handling code is @@ -658,12 +646,13 @@ static void atmel_rx_chars(struct uart_port *port) || atmel_port->break_active)) { /* clear error */ - UART_PUT_CR(port, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); if (status & ATMEL_US_RXBRK && !atmel_port->break_active) { atmel_port->break_active = 1; - UART_PUT_IER(port, ATMEL_US_RXBRK); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_RXBRK); } else { /* * This is either the end-of-break @@ -672,14 +661,15 @@ static void atmel_rx_chars(struct uart_port *port) * being set. In both cases, the next * RXBRK will indicate start-of-break. */ - UART_PUT_IDR(port, ATMEL_US_RXBRK); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_RXBRK); status &= ~ATMEL_US_RXBRK; atmel_port->break_active = 0; } } atmel_buffer_rx_char(port, status, ch); - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); } tasklet_schedule(&atmel_port->tasklet); @@ -694,16 +684,18 @@ static void atmel_tx_chars(struct uart_port *port) struct circ_buf *xmit = &port->state->xmit; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (port->x_char && UART_GET_CSR(port) & atmel_port->tx_done_mask) { - UART_PUT_CHAR(port, port->x_char); + if (port->x_char && + (atmel_uart_readl(port, ATMEL_US_CSR) & atmel_port->tx_done_mask)) { + atmel_uart_writel(port, ATMEL_US_THR, port->x_char); port->icount.tx++; port->x_char = 0; } if (uart_circ_empty(xmit) || uart_tx_stopped(port)) return; - while (UART_GET_CSR(port) & atmel_port->tx_done_mask) { - UART_PUT_CHAR(port, xmit->buf[xmit->tail]); + while (atmel_uart_readl(port, ATMEL_US_CSR) & + atmel_port->tx_done_mask) { + atmel_uart_writel(port, ATMEL_US_THR, xmit->buf[xmit->tail]); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; if (uart_circ_empty(xmit)) @@ -715,7 +707,8 @@ static void atmel_tx_chars(struct uart_port *port) if (!uart_circ_empty(xmit)) /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, + atmel_port->tx_done_mask); } static void atmel_complete_tx_dma(void *arg) @@ -935,14 +928,14 @@ static void atmel_rx_from_dma(struct uart_port *port) /* Reset the UART timeout early so that we don't miss one */ - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); dmastat = dmaengine_tx_status(chan, atmel_port->cookie_rx, &state); /* Restart a new tasklet if DMA status is error */ if (dmastat == DMA_ERROR) { dev_dbg(port->dev, "Get residue error, restart tasklet\n"); - UART_PUT_IER(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); tasklet_schedule(&atmel_port->tasklet); return; } @@ -1008,7 +1001,7 @@ static void atmel_rx_from_dma(struct uart_port *port) tty_flip_buffer_push(tport); spin_lock(&port->lock); - UART_PUT_IER(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); } static int atmel_prepare_rx_dma(struct uart_port *port) @@ -1118,8 +1111,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) * the moment. */ if (pending & (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)) { - UART_PUT_IDR(port, (ATMEL_US_ENDRX - | ATMEL_US_TIMEOUT)); + atmel_uart_writel(port, ATMEL_US_IDR, + (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)); tasklet_schedule(&atmel_port->tasklet); } @@ -1130,7 +1123,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) if (atmel_use_dma_rx(port)) { if (pending & ATMEL_US_TIMEOUT) { - UART_PUT_IDR(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_TIMEOUT); tasklet_schedule(&atmel_port->tasklet); } } @@ -1143,8 +1137,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) * End of break detected. If it came along with a * character, atmel_rx_chars will handle it. */ - UART_PUT_CR(port, ATMEL_US_RSTSTA); - UART_PUT_IDR(port, ATMEL_US_RXBRK); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXBRK); atmel_port->break_active = 0; } } @@ -1159,7 +1153,8 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending) if (pending & atmel_port->tx_done_mask) { /* Either PDC or interrupt transmission */ - UART_PUT_IDR(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IDR, + atmel_port->tx_done_mask); tasklet_schedule(&atmel_port->tasklet); } } @@ -1197,7 +1192,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id) do { status = atmel_get_lines_status(port); - mask = UART_GET_IMR(port); + mask = atmel_uart_readl(port, ATMEL_US_IMR); pending = status & mask; if (!gpio_handled) { /* @@ -1223,7 +1218,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id) if (atmel_port->suspended) { atmel_port->pending |= pending; atmel_port->pending_status = status; - UART_PUT_IDR(port, mask); + atmel_uart_writel(port, ATMEL_US_IDR, mask); pm_system_wakeup(); break; } @@ -1260,7 +1255,7 @@ static void atmel_tx_pdc(struct uart_port *port) int count; /* nothing left to transmit? */ - if (UART_GET_TCR(port)) + if (atmel_uart_readl(port, ATMEL_PDC_TCR)) return; xmit->tail += pdc->ofs; @@ -1272,7 +1267,7 @@ static void atmel_tx_pdc(struct uart_port *port) /* more to transmit - setup next transfer */ /* disable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) { dma_sync_single_for_device(port->dev, @@ -1283,12 +1278,14 @@ static void atmel_tx_pdc(struct uart_port *port) count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); pdc->ofs = count; - UART_PUT_TPR(port, pdc->dma_addr + xmit->tail); - UART_PUT_TCR(port, count); + atmel_uart_writel(port, ATMEL_PDC_TPR, + pdc->dma_addr + xmit->tail); + atmel_uart_writel(port, ATMEL_PDC_TCR, count); /* re-enable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, + atmel_port->tx_done_mask); } else { if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) { @@ -1414,10 +1411,10 @@ static void atmel_rx_from_pdc(struct uart_port *port) do { /* Reset the UART timeout early so that we don't miss one */ - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); pdc = &atmel_port->pdc_rx[rx_idx]; - head = UART_GET_RPR(port) - pdc->dma_addr; + head = atmel_uart_readl(port, ATMEL_PDC_RPR) - pdc->dma_addr; tail = pdc->ofs; /* If the PDC has switched buffers, RPR won't contain @@ -1460,8 +1457,8 @@ static void atmel_rx_from_pdc(struct uart_port *port) */ if (head >= pdc->dma_size) { pdc->ofs = 0; - UART_PUT_RNPR(port, pdc->dma_addr); - UART_PUT_RNCR(port, pdc->dma_size); + atmel_uart_writel(port, ATMEL_PDC_RNPR, pdc->dma_addr); + atmel_uart_writel(port, ATMEL_PDC_RNCR, pdc->dma_size); rx_idx = !rx_idx; atmel_port->pdc_rx_idx = rx_idx; @@ -1476,7 +1473,8 @@ static void atmel_rx_from_pdc(struct uart_port *port) tty_flip_buffer_push(tport); spin_lock(&port->lock); - UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); } static int atmel_prepare_rx_pdc(struct uart_port *port) @@ -1509,11 +1507,12 @@ static int atmel_prepare_rx_pdc(struct uart_port *port) atmel_port->pdc_rx_idx = 0; - UART_PUT_RPR(port, atmel_port->pdc_rx[0].dma_addr); - UART_PUT_RCR(port, PDC_BUFFER_SIZE); + atmel_uart_writel(port, ATMEL_PDC_RPR, atmel_port->pdc_rx[0].dma_addr); + atmel_uart_writel(port, ATMEL_PDC_RCR, PDC_BUFFER_SIZE); - UART_PUT_RNPR(port, atmel_port->pdc_rx[1].dma_addr); - UART_PUT_RNCR(port, PDC_BUFFER_SIZE); + atmel_uart_writel(port, ATMEL_PDC_RNPR, + atmel_port->pdc_rx[1].dma_addr); + atmel_uart_writel(port, ATMEL_PDC_RNCR, PDC_BUFFER_SIZE); return 0; } @@ -1667,7 +1666,7 @@ static void atmel_set_ops(struct uart_port *port) static void atmel_get_ip_name(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - int name = UART_GET_IP_NAME(port); + int name = atmel_uart_readl(port, ATMEL_US_NAME); u32 version; int usart, uart; /* usart and uart ascii */ @@ -1684,7 +1683,7 @@ static void atmel_get_ip_name(struct uart_port *port) atmel_port->is_usart = false; } else { /* fallback for older SoCs: use version field */ - version = UART_GET_IP_VERSION(port); + version = atmel_uart_readl(port, ATMEL_US_VERSION); switch (version) { case 0x302: case 0x10213: @@ -1756,7 +1755,7 @@ static int atmel_startup(struct uart_port *port) * request_irq() is called we could get stuck trying to * handle an unexpected interrupt */ - UART_PUT_IDR(port, -1); + atmel_uart_writel(port, ATMEL_US_IDR, -1); atmel_port->ms_irq_enabled = false; /* @@ -1804,9 +1803,9 @@ static int atmel_startup(struct uart_port *port) /* * Finally, enable the serial port */ - UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); /* enable xmit & rcvr */ - UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); setup_timer(&atmel_port->uart_timer, atmel_uart_timer_callback, @@ -1819,13 +1818,14 @@ static int atmel_startup(struct uart_port *port) jiffies + uart_poll_timeout(port)); /* set USART timeout */ } else { - UART_PUT_RTOR(port, PDC_RX_TIMEOUT); - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_RTOR, PDC_RX_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); - UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); } /* enable PDC controller */ - UART_PUT_PTCR(port, ATMEL_PDC_RXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN); } else if (atmel_use_dma_rx(port)) { /* set UART timeout */ if (!atmel_port->is_usart) { @@ -1833,14 +1833,15 @@ static int atmel_startup(struct uart_port *port) jiffies + uart_poll_timeout(port)); /* set USART timeout */ } else { - UART_PUT_RTOR(port, PDC_RX_TIMEOUT); - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_RTOR, PDC_RX_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); - UART_PUT_IER(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_TIMEOUT); } } else { /* enable receive only */ - UART_PUT_IER(port, ATMEL_US_RXRDY); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY); } return 0; @@ -1860,7 +1861,7 @@ static void atmel_flush_buffer(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (atmel_use_pdc_tx(port)) { - UART_PUT_TCR(port, 0); + atmel_uart_writel(port, ATMEL_PDC_TCR, 0); atmel_port->pdc_tx.ofs = 0; } } @@ -1892,8 +1893,8 @@ static void atmel_shutdown(struct uart_port *port) atmel_stop_rx(port); atmel_stop_tx(port); - UART_PUT_CR(port, ATMEL_US_RSTSTA); - UART_PUT_IDR(port, -1); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_IDR, -1); /* @@ -1938,12 +1939,12 @@ static void atmel_serial_pm(struct uart_port *port, unsigned int state, clk_prepare_enable(atmel_port->clk); /* re-enable interrupts if we disabled some on suspend */ - UART_PUT_IER(port, atmel_port->backup_imr); + atmel_uart_writel(port, ATMEL_US_IER, atmel_port->backup_imr); break; case 3: /* Back up the interrupt mask and disable all interrupts */ - atmel_port->backup_imr = UART_GET_IMR(port); - UART_PUT_IDR(port, -1); + atmel_port->backup_imr = atmel_uart_readl(port, ATMEL_US_IMR); + atmel_uart_writel(port, ATMEL_US_IDR, -1); /* * Disable the peripheral clock for this serial port. @@ -1966,7 +1967,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, unsigned int old_mode, mode, imr, quot, baud; /* save the current mode register */ - mode = old_mode = UART_GET_MR(port); + mode = old_mode = atmel_uart_readl(port, ATMEL_US_MR); /* reset the mode, clock divisor, parity, stop bits and data size */ mode &= ~(ATMEL_US_USCLKS | ATMEL_US_CHRL | ATMEL_US_NBSTOP | @@ -2025,7 +2026,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, if (atmel_use_pdc_rx(port)) /* need to enable error interrupts */ - UART_PUT_IER(port, port->read_status_mask); + atmel_uart_writel(port, ATMEL_US_IER, port->read_status_mask); /* * Characters to ignore @@ -2052,15 +2053,16 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, * transmitter is empty if requested by the caller, so there's * no need to wait for it here. */ - imr = UART_GET_IMR(port); - UART_PUT_IDR(port, -1); + imr = atmel_uart_readl(port, ATMEL_US_IMR); + atmel_uart_writel(port, ATMEL_US_IDR, -1); /* disable receiver and transmitter */ - UART_PUT_CR(port, ATMEL_US_TXDIS | ATMEL_US_RXDIS); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXDIS); /* mode */ if (port->rs485.flags & SER_RS485_ENABLED) { - UART_PUT_TTGR(port, port->rs485.delay_rts_after_send); + atmel_uart_writel(port, ATMEL_US_TTGR, + port->rs485.delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else if (termios->c_cflag & CRTSCTS) { /* RS232 with hardware handshake (RTS/CTS) */ @@ -2071,7 +2073,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, } /* set the mode, clock divisor, parity, stop bits and data size */ - UART_PUT_MR(port, mode); + atmel_uart_writel(port, ATMEL_US_MR, mode); /* * when switching the mode, set the RTS line state according to the @@ -2088,16 +2090,16 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, rts_state = ATMEL_US_RTSEN; } - UART_PUT_CR(port, rts_state); + atmel_uart_writel(port, ATMEL_US_CR, rts_state); } /* set the baud rate */ - UART_PUT_BRGR(port, quot); - UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); - UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_BRGR, quot); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); /* restore interrupts */ - UART_PUT_IER(port, imr); + atmel_uart_writel(port, ATMEL_US_IER, imr); /* CTS flow-control and modem-status interrupts */ if (UART_ENABLE_MS(port, termios->c_cflag)) @@ -2208,18 +2210,18 @@ static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser) #ifdef CONFIG_CONSOLE_POLL static int atmel_poll_get_char(struct uart_port *port) { - while (!(UART_GET_CSR(port) & ATMEL_US_RXRDY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_RXRDY)) cpu_relax(); - return UART_GET_CHAR(port); + return atmel_uart_readl(port, ATMEL_US_RHR); } static void atmel_poll_put_char(struct uart_port *port, unsigned char ch) { - while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) cpu_relax(); - UART_PUT_CHAR(port, ch); + atmel_uart_writel(port, ATMEL_US_THR, ch); } #endif @@ -2324,9 +2326,9 @@ struct platform_device *atmel_default_console_device; /* the serial console devi #ifdef CONFIG_SERIAL_ATMEL_CONSOLE static void atmel_console_putchar(struct uart_port *port, int ch) { - while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) cpu_relax(); - UART_PUT_CHAR(port, ch); + atmel_uart_writel(port, ATMEL_US_THR, ch); } /* @@ -2342,12 +2344,13 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) /* * First, save IMR and then disable interrupts */ - imr = UART_GET_IMR(port); - UART_PUT_IDR(port, ATMEL_US_RXRDY | atmel_port->tx_done_mask); + imr = atmel_uart_readl(port, ATMEL_US_IMR); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_RXRDY | atmel_port->tx_done_mask); /* Store PDC transmit status and disable it */ - pdc_tx = UART_GET_PTSR(port) & ATMEL_PDC_TXTEN; - UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); + pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN; + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); uart_console_write(port, s, count, atmel_console_putchar); @@ -2356,15 +2359,15 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) * and restore IMR */ do { - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); } while (!(status & ATMEL_US_TXRDY)); /* Restore PDC transmit status */ if (pdc_tx) - UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); /* set interrupts back the way they were */ - UART_PUT_IER(port, imr); + atmel_uart_writel(port, ATMEL_US_IER, imr); } /* @@ -2380,17 +2383,17 @@ static void __init atmel_console_get_options(struct uart_port *port, int *baud, * If the baud rate generator isn't running, the port wasn't * initialized by the boot loader. */ - quot = UART_GET_BRGR(port) & ATMEL_US_CD; + quot = atmel_uart_readl(port, ATMEL_US_BRGR) & ATMEL_US_CD; if (!quot) return; - mr = UART_GET_MR(port) & ATMEL_US_CHRL; + mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_CHRL; if (mr == ATMEL_US_CHRL_8) *bits = 8; else *bits = 7; - mr = UART_GET_MR(port) & ATMEL_US_PAR; + mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_PAR; if (mr == ATMEL_US_PAR_EVEN) *parity = 'e'; else if (mr == ATMEL_US_PAR_ODD) @@ -2423,9 +2426,9 @@ static int __init atmel_console_setup(struct console *co, char *options) if (ret) return ret; - UART_PUT_IDR(port, -1); - UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); - UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_IDR, -1); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); @@ -2532,7 +2535,8 @@ static int atmel_serial_suspend(struct platform_device *pdev, if (atmel_is_console_port(port) && console_suspend_enabled) { /* Drain the TX shifter */ - while (!(UART_GET_CSR(port) & ATMEL_US_TXEMPTY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & + ATMEL_US_TXEMPTY)) cpu_relax(); } @@ -2684,8 +2688,9 @@ static int atmel_serial_probe(struct platform_device *pdev) clk_prepare_enable(port->clk); if (rs485_enabled) { - UART_PUT_MR(&port->uart, ATMEL_US_USMODE_NORMAL); - UART_PUT_CR(&port->uart, ATMEL_US_RTSEN); + atmel_uart_writel(&port->uart, ATMEL_US_MR, + ATMEL_US_USMODE_NORMAL); + atmel_uart_writel(&port->uart, ATMEL_US_CR, ATMEL_US_RTSEN); } /* |