Lines Matching refs:port
77 #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase)) argument
82 static irqreturn_t mpc5xxx_uart_process_int(struct uart_port *port);
89 void (*fifo_init)(struct uart_port *port);
90 int (*raw_rx_rdy)(struct uart_port *port);
91 int (*raw_tx_rdy)(struct uart_port *port);
92 int (*rx_rdy)(struct uart_port *port);
93 int (*tx_rdy)(struct uart_port *port);
94 int (*tx_empty)(struct uart_port *port);
95 void (*stop_rx)(struct uart_port *port);
96 void (*start_tx)(struct uart_port *port);
97 void (*stop_tx)(struct uart_port *port);
98 void (*rx_clr_irq)(struct uart_port *port);
99 void (*tx_clr_irq)(struct uart_port *port);
100 void (*write_char)(struct uart_port *port, unsigned char c);
101 unsigned char (*read_char)(struct uart_port *port);
102 void (*cw_disable_ints)(struct uart_port *port);
103 void (*cw_restore_ints)(struct uart_port *port);
104 unsigned int (*set_baudrate)(struct uart_port *port,
107 int (*clock_alloc)(struct uart_port *port);
108 void (*clock_relse)(struct uart_port *port);
109 int (*clock)(struct uart_port *port, int enable);
113 irqreturn_t (*handle_irq)(struct uart_port *port);
114 u16 (*get_status)(struct uart_port *port);
115 u8 (*get_ipcr)(struct uart_port *port);
116 void (*command)(struct uart_port *port, u8 cmd);
117 void (*set_mode)(struct uart_port *port, u8 mr1, u8 mr2);
118 void (*set_rts)(struct uart_port *port, int state);
119 void (*enable_ms)(struct uart_port *port);
120 void (*set_sicr)(struct uart_port *port, u32 val);
121 void (*set_imr)(struct uart_port *port, u16 val);
122 u8 (*get_mr1)(struct uart_port *port);
135 static u16 mpc52xx_psc_get_status(struct uart_port *port) in mpc52xx_psc_get_status() argument
137 return in_be16(&PSC(port)->mpc52xx_psc_status); in mpc52xx_psc_get_status()
140 static u8 mpc52xx_psc_get_ipcr(struct uart_port *port) in mpc52xx_psc_get_ipcr() argument
142 return in_8(&PSC(port)->mpc52xx_psc_ipcr); in mpc52xx_psc_get_ipcr()
145 static void mpc52xx_psc_command(struct uart_port *port, u8 cmd) in mpc52xx_psc_command() argument
147 out_8(&PSC(port)->command, cmd); in mpc52xx_psc_command()
150 static void mpc52xx_psc_set_mode(struct uart_port *port, u8 mr1, u8 mr2) in mpc52xx_psc_set_mode() argument
152 out_8(&PSC(port)->command, MPC52xx_PSC_SEL_MODE_REG_1); in mpc52xx_psc_set_mode()
153 out_8(&PSC(port)->mode, mr1); in mpc52xx_psc_set_mode()
154 out_8(&PSC(port)->mode, mr2); in mpc52xx_psc_set_mode()
157 static void mpc52xx_psc_set_rts(struct uart_port *port, int state) in mpc52xx_psc_set_rts() argument
160 out_8(&PSC(port)->op1, MPC52xx_PSC_OP_RTS); in mpc52xx_psc_set_rts()
162 out_8(&PSC(port)->op0, MPC52xx_PSC_OP_RTS); in mpc52xx_psc_set_rts()
165 static void mpc52xx_psc_enable_ms(struct uart_port *port) in mpc52xx_psc_enable_ms() argument
167 struct mpc52xx_psc __iomem *psc = PSC(port); in mpc52xx_psc_enable_ms()
174 port->read_status_mask |= MPC52xx_PSC_IMR_IPC; in mpc52xx_psc_enable_ms()
175 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_enable_ms()
178 static void mpc52xx_psc_set_sicr(struct uart_port *port, u32 val) in mpc52xx_psc_set_sicr() argument
180 out_be32(&PSC(port)->sicr, val); in mpc52xx_psc_set_sicr()
183 static void mpc52xx_psc_set_imr(struct uart_port *port, u16 val) in mpc52xx_psc_set_imr() argument
185 out_be16(&PSC(port)->mpc52xx_psc_imr, val); in mpc52xx_psc_set_imr()
188 static u8 mpc52xx_psc_get_mr1(struct uart_port *port) in mpc52xx_psc_get_mr1() argument
190 out_8(&PSC(port)->command, MPC52xx_PSC_SEL_MODE_REG_1); in mpc52xx_psc_get_mr1()
191 return in_8(&PSC(port)->mode); in mpc52xx_psc_get_mr1()
195 #define FIFO_52xx(port) ((struct mpc52xx_psc_fifo __iomem *)(PSC(port)+1)) argument
196 static void mpc52xx_psc_fifo_init(struct uart_port *port) in mpc52xx_psc_fifo_init() argument
198 struct mpc52xx_psc __iomem *psc = PSC(port); in mpc52xx_psc_fifo_init()
199 struct mpc52xx_psc_fifo __iomem *fifo = FIFO_52xx(port); in mpc52xx_psc_fifo_init()
206 port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_fifo_init()
207 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_fifo_init()
210 static int mpc52xx_psc_raw_rx_rdy(struct uart_port *port) in mpc52xx_psc_raw_rx_rdy() argument
212 return in_be16(&PSC(port)->mpc52xx_psc_status) in mpc52xx_psc_raw_rx_rdy()
216 static int mpc52xx_psc_raw_tx_rdy(struct uart_port *port) in mpc52xx_psc_raw_tx_rdy() argument
218 return in_be16(&PSC(port)->mpc52xx_psc_status) in mpc52xx_psc_raw_tx_rdy()
223 static int mpc52xx_psc_rx_rdy(struct uart_port *port) in mpc52xx_psc_rx_rdy() argument
225 return in_be16(&PSC(port)->mpc52xx_psc_isr) in mpc52xx_psc_rx_rdy()
226 & port->read_status_mask in mpc52xx_psc_rx_rdy()
230 static int mpc52xx_psc_tx_rdy(struct uart_port *port) in mpc52xx_psc_tx_rdy() argument
232 return in_be16(&PSC(port)->mpc52xx_psc_isr) in mpc52xx_psc_tx_rdy()
233 & port->read_status_mask in mpc52xx_psc_tx_rdy()
237 static int mpc52xx_psc_tx_empty(struct uart_port *port) in mpc52xx_psc_tx_empty() argument
239 u16 sts = in_be16(&PSC(port)->mpc52xx_psc_status); in mpc52xx_psc_tx_empty()
244 static void mpc52xx_psc_start_tx(struct uart_port *port) in mpc52xx_psc_start_tx() argument
246 port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_start_tx()
247 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_start_tx()
250 static void mpc52xx_psc_stop_tx(struct uart_port *port) in mpc52xx_psc_stop_tx() argument
252 port->read_status_mask &= ~MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_stop_tx()
253 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_stop_tx()
256 static void mpc52xx_psc_stop_rx(struct uart_port *port) in mpc52xx_psc_stop_rx() argument
258 port->read_status_mask &= ~MPC52xx_PSC_IMR_RXRDY; in mpc52xx_psc_stop_rx()
259 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_stop_rx()
262 static void mpc52xx_psc_rx_clr_irq(struct uart_port *port) in mpc52xx_psc_rx_clr_irq() argument
266 static void mpc52xx_psc_tx_clr_irq(struct uart_port *port) in mpc52xx_psc_tx_clr_irq() argument
270 static void mpc52xx_psc_write_char(struct uart_port *port, unsigned char c) in mpc52xx_psc_write_char() argument
272 out_8(&PSC(port)->mpc52xx_psc_buffer_8, c); in mpc52xx_psc_write_char()
275 static unsigned char mpc52xx_psc_read_char(struct uart_port *port) in mpc52xx_psc_read_char() argument
277 return in_8(&PSC(port)->mpc52xx_psc_buffer_8); in mpc52xx_psc_read_char()
280 static void mpc52xx_psc_cw_disable_ints(struct uart_port *port) in mpc52xx_psc_cw_disable_ints() argument
282 out_be16(&PSC(port)->mpc52xx_psc_imr, 0); in mpc52xx_psc_cw_disable_ints()
285 static void mpc52xx_psc_cw_restore_ints(struct uart_port *port) in mpc52xx_psc_cw_restore_ints() argument
287 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_cw_restore_ints()
290 static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port, in mpc5200_psc_set_baudrate() argument
298 baud = uart_get_baud_rate(port, new, old, in mpc5200_psc_set_baudrate()
299 port->uartclk / (32 * 0xffff) + 1, in mpc5200_psc_set_baudrate()
300 port->uartclk / 32); in mpc5200_psc_set_baudrate()
301 divisor = (port->uartclk + 16 * baud) / (32 * baud); in mpc5200_psc_set_baudrate()
304 mpc52xx_set_divisor(PSC(port), 0xdd00, divisor); in mpc5200_psc_set_baudrate()
308 static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port, in mpc5200b_psc_set_baudrate() argument
318 baud = uart_get_baud_rate(port, new, old, in mpc5200b_psc_set_baudrate()
319 port->uartclk / (32 * 0xffff) + 1, in mpc5200b_psc_set_baudrate()
320 port->uartclk / 4); in mpc5200b_psc_set_baudrate()
321 divisor = (port->uartclk + 2 * baud) / (4 * baud); in mpc5200b_psc_set_baudrate()
330 mpc52xx_set_divisor(PSC(port), prescaler, divisor); in mpc5200b_psc_set_baudrate()
334 static void mpc52xx_psc_get_irq(struct uart_port *port, struct device_node *np) in mpc52xx_psc_get_irq() argument
336 port->irqflags = 0; in mpc52xx_psc_get_irq()
337 port->irq = irq_of_parse_and_map(np, 0); in mpc52xx_psc_get_irq()
341 static irqreturn_t mpc52xx_psc_handle_irq(struct uart_port *port) in mpc52xx_psc_handle_irq() argument
343 return mpc5xxx_uart_process_int(port); in mpc52xx_psc_handle_irq()
409 #define FIFO_512x(port) ((struct mpc512x_psc_fifo __iomem *)(PSC(port)+1)) argument
424 static void mpc512x_psc_fifo_init(struct uart_port *port) in mpc512x_psc_fifo_init() argument
427 out_be16(&PSC(port)->mpc52xx_psc_clock_select, 0xdd00); in mpc512x_psc_fifo_init()
429 out_be32(&FIFO_512x(port)->txcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc512x_psc_fifo_init()
430 out_be32(&FIFO_512x(port)->txcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc512x_psc_fifo_init()
431 out_be32(&FIFO_512x(port)->txalarm, 1); in mpc512x_psc_fifo_init()
432 out_be32(&FIFO_512x(port)->tximr, 0); in mpc512x_psc_fifo_init()
434 out_be32(&FIFO_512x(port)->rxcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc512x_psc_fifo_init()
435 out_be32(&FIFO_512x(port)->rxcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc512x_psc_fifo_init()
436 out_be32(&FIFO_512x(port)->rxalarm, 1); in mpc512x_psc_fifo_init()
437 out_be32(&FIFO_512x(port)->rximr, 0); in mpc512x_psc_fifo_init()
439 out_be32(&FIFO_512x(port)->tximr, MPC512x_PSC_FIFO_ALARM); in mpc512x_psc_fifo_init()
440 out_be32(&FIFO_512x(port)->rximr, MPC512x_PSC_FIFO_ALARM); in mpc512x_psc_fifo_init()
443 static int mpc512x_psc_raw_rx_rdy(struct uart_port *port) in mpc512x_psc_raw_rx_rdy() argument
445 return !(in_be32(&FIFO_512x(port)->rxsr) & MPC512x_PSC_FIFO_EMPTY); in mpc512x_psc_raw_rx_rdy()
448 static int mpc512x_psc_raw_tx_rdy(struct uart_port *port) in mpc512x_psc_raw_tx_rdy() argument
450 return !(in_be32(&FIFO_512x(port)->txsr) & MPC512x_PSC_FIFO_FULL); in mpc512x_psc_raw_tx_rdy()
453 static int mpc512x_psc_rx_rdy(struct uart_port *port) in mpc512x_psc_rx_rdy() argument
455 return in_be32(&FIFO_512x(port)->rxsr) in mpc512x_psc_rx_rdy()
456 & in_be32(&FIFO_512x(port)->rximr) in mpc512x_psc_rx_rdy()
460 static int mpc512x_psc_tx_rdy(struct uart_port *port) in mpc512x_psc_tx_rdy() argument
462 return in_be32(&FIFO_512x(port)->txsr) in mpc512x_psc_tx_rdy()
463 & in_be32(&FIFO_512x(port)->tximr) in mpc512x_psc_tx_rdy()
467 static int mpc512x_psc_tx_empty(struct uart_port *port) in mpc512x_psc_tx_empty() argument
469 return in_be32(&FIFO_512x(port)->txsr) in mpc512x_psc_tx_empty()
473 static void mpc512x_psc_stop_rx(struct uart_port *port) in mpc512x_psc_stop_rx() argument
477 rx_fifo_imr = in_be32(&FIFO_512x(port)->rximr); in mpc512x_psc_stop_rx()
479 out_be32(&FIFO_512x(port)->rximr, rx_fifo_imr); in mpc512x_psc_stop_rx()
482 static void mpc512x_psc_start_tx(struct uart_port *port) in mpc512x_psc_start_tx() argument
486 tx_fifo_imr = in_be32(&FIFO_512x(port)->tximr); in mpc512x_psc_start_tx()
488 out_be32(&FIFO_512x(port)->tximr, tx_fifo_imr); in mpc512x_psc_start_tx()
491 static void mpc512x_psc_stop_tx(struct uart_port *port) in mpc512x_psc_stop_tx() argument
495 tx_fifo_imr = in_be32(&FIFO_512x(port)->tximr); in mpc512x_psc_stop_tx()
497 out_be32(&FIFO_512x(port)->tximr, tx_fifo_imr); in mpc512x_psc_stop_tx()
500 static void mpc512x_psc_rx_clr_irq(struct uart_port *port) in mpc512x_psc_rx_clr_irq() argument
502 out_be32(&FIFO_512x(port)->rxisr, in_be32(&FIFO_512x(port)->rxisr)); in mpc512x_psc_rx_clr_irq()
505 static void mpc512x_psc_tx_clr_irq(struct uart_port *port) in mpc512x_psc_tx_clr_irq() argument
507 out_be32(&FIFO_512x(port)->txisr, in_be32(&FIFO_512x(port)->txisr)); in mpc512x_psc_tx_clr_irq()
510 static void mpc512x_psc_write_char(struct uart_port *port, unsigned char c) in mpc512x_psc_write_char() argument
512 out_8(&FIFO_512x(port)->txdata_8, c); in mpc512x_psc_write_char()
515 static unsigned char mpc512x_psc_read_char(struct uart_port *port) in mpc512x_psc_read_char() argument
517 return in_8(&FIFO_512x(port)->rxdata_8); in mpc512x_psc_read_char()
520 static void mpc512x_psc_cw_disable_ints(struct uart_port *port) in mpc512x_psc_cw_disable_ints() argument
522 port->read_status_mask = in mpc512x_psc_cw_disable_ints()
523 in_be32(&FIFO_512x(port)->tximr) << 16 | in mpc512x_psc_cw_disable_ints()
524 in_be32(&FIFO_512x(port)->rximr); in mpc512x_psc_cw_disable_ints()
525 out_be32(&FIFO_512x(port)->tximr, 0); in mpc512x_psc_cw_disable_ints()
526 out_be32(&FIFO_512x(port)->rximr, 0); in mpc512x_psc_cw_disable_ints()
529 static void mpc512x_psc_cw_restore_ints(struct uart_port *port) in mpc512x_psc_cw_restore_ints() argument
531 out_be32(&FIFO_512x(port)->tximr, in mpc512x_psc_cw_restore_ints()
532 (port->read_status_mask >> 16) & 0x7f); in mpc512x_psc_cw_restore_ints()
533 out_be32(&FIFO_512x(port)->rximr, port->read_status_mask & 0x7f); in mpc512x_psc_cw_restore_ints()
536 static unsigned int mpc512x_psc_set_baudrate(struct uart_port *port, in mpc512x_psc_set_baudrate() argument
557 baud = uart_get_baud_rate(port, new, old, in mpc512x_psc_set_baudrate()
558 port->uartclk / (16 * 0xffff) + 1, in mpc512x_psc_set_baudrate()
559 port->uartclk / 16); in mpc512x_psc_set_baudrate()
560 divisor = (port->uartclk + 8 * baud) / (16 * baud); in mpc512x_psc_set_baudrate()
563 mpc52xx_set_divisor(PSC(port), 0xdd00, divisor); in mpc512x_psc_set_baudrate()
640 static irqreturn_t mpc512x_psc_handle_irq(struct uart_port *port) in mpc512x_psc_handle_irq() argument
649 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_handle_irq()
652 return mpc5xxx_uart_process_int(port); in mpc512x_psc_handle_irq()
661 static int mpc512x_psc_alloc_clock(struct uart_port *port) in mpc512x_psc_alloc_clock() argument
667 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_alloc_clock()
669 clk = devm_clk_get(port->dev, "mclk"); in mpc512x_psc_alloc_clock()
671 dev_err(port->dev, "Failed to get MCLK!\n"); in mpc512x_psc_alloc_clock()
677 dev_err(port->dev, "Failed to enable MCLK!\n"); in mpc512x_psc_alloc_clock()
682 clk = devm_clk_get(port->dev, "ipg"); in mpc512x_psc_alloc_clock()
684 dev_err(port->dev, "Failed to get IPG clock!\n"); in mpc512x_psc_alloc_clock()
690 dev_err(port->dev, "Failed to enable IPG clock!\n"); in mpc512x_psc_alloc_clock()
710 static void mpc512x_psc_relse_clock(struct uart_port *port) in mpc512x_psc_relse_clock() argument
715 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_relse_clock()
728 static int mpc512x_psc_endis_clock(struct uart_port *port, int enable) in mpc512x_psc_endis_clock() argument
734 if (uart_console(port)) in mpc512x_psc_endis_clock()
737 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_endis_clock()
740 dev_err(port->dev, "Failed to get PSC clock entry!\n"); in mpc512x_psc_endis_clock()
744 dev_dbg(port->dev, "mclk %sable\n", enable ? "en" : "dis"); in mpc512x_psc_endis_clock()
748 dev_err(port->dev, "Failed to enable MCLK!\n"); in mpc512x_psc_endis_clock()
756 static void mpc512x_psc_get_irq(struct uart_port *port, struct device_node *np) in mpc512x_psc_get_irq() argument
758 port->irqflags = IRQF_SHARED; in mpc512x_psc_get_irq()
759 port->irq = psc_fifoc_irq; in mpc512x_psc_get_irq()
765 #define PSC_5125(port) ((struct mpc5125_psc __iomem *)((port)->membase)) argument
766 #define FIFO_5125(port) ((struct mpc512x_psc_fifo __iomem *)(PSC_5125(port)+1)) argument
768 static void mpc5125_psc_fifo_init(struct uart_port *port) in mpc5125_psc_fifo_init() argument
771 out_8(&PSC_5125(port)->mpc52xx_psc_clock_select, 0xdd); in mpc5125_psc_fifo_init()
773 out_be32(&FIFO_5125(port)->txcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc5125_psc_fifo_init()
774 out_be32(&FIFO_5125(port)->txcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc5125_psc_fifo_init()
775 out_be32(&FIFO_5125(port)->txalarm, 1); in mpc5125_psc_fifo_init()
776 out_be32(&FIFO_5125(port)->tximr, 0); in mpc5125_psc_fifo_init()
778 out_be32(&FIFO_5125(port)->rxcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc5125_psc_fifo_init()
779 out_be32(&FIFO_5125(port)->rxcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc5125_psc_fifo_init()
780 out_be32(&FIFO_5125(port)->rxalarm, 1); in mpc5125_psc_fifo_init()
781 out_be32(&FIFO_5125(port)->rximr, 0); in mpc5125_psc_fifo_init()
783 out_be32(&FIFO_5125(port)->tximr, MPC512x_PSC_FIFO_ALARM); in mpc5125_psc_fifo_init()
784 out_be32(&FIFO_5125(port)->rximr, MPC512x_PSC_FIFO_ALARM); in mpc5125_psc_fifo_init()
787 static int mpc5125_psc_raw_rx_rdy(struct uart_port *port) in mpc5125_psc_raw_rx_rdy() argument
789 return !(in_be32(&FIFO_5125(port)->rxsr) & MPC512x_PSC_FIFO_EMPTY); in mpc5125_psc_raw_rx_rdy()
792 static int mpc5125_psc_raw_tx_rdy(struct uart_port *port) in mpc5125_psc_raw_tx_rdy() argument
794 return !(in_be32(&FIFO_5125(port)->txsr) & MPC512x_PSC_FIFO_FULL); in mpc5125_psc_raw_tx_rdy()
797 static int mpc5125_psc_rx_rdy(struct uart_port *port) in mpc5125_psc_rx_rdy() argument
799 return in_be32(&FIFO_5125(port)->rxsr) & in mpc5125_psc_rx_rdy()
800 in_be32(&FIFO_5125(port)->rximr) & MPC512x_PSC_FIFO_ALARM; in mpc5125_psc_rx_rdy()
803 static int mpc5125_psc_tx_rdy(struct uart_port *port) in mpc5125_psc_tx_rdy() argument
805 return in_be32(&FIFO_5125(port)->txsr) & in mpc5125_psc_tx_rdy()
806 in_be32(&FIFO_5125(port)->tximr) & MPC512x_PSC_FIFO_ALARM; in mpc5125_psc_tx_rdy()
809 static int mpc5125_psc_tx_empty(struct uart_port *port) in mpc5125_psc_tx_empty() argument
811 return in_be32(&FIFO_5125(port)->txsr) & MPC512x_PSC_FIFO_EMPTY; in mpc5125_psc_tx_empty()
814 static void mpc5125_psc_stop_rx(struct uart_port *port) in mpc5125_psc_stop_rx() argument
818 rx_fifo_imr = in_be32(&FIFO_5125(port)->rximr); in mpc5125_psc_stop_rx()
820 out_be32(&FIFO_5125(port)->rximr, rx_fifo_imr); in mpc5125_psc_stop_rx()
823 static void mpc5125_psc_start_tx(struct uart_port *port) in mpc5125_psc_start_tx() argument
827 tx_fifo_imr = in_be32(&FIFO_5125(port)->tximr); in mpc5125_psc_start_tx()
829 out_be32(&FIFO_5125(port)->tximr, tx_fifo_imr); in mpc5125_psc_start_tx()
832 static void mpc5125_psc_stop_tx(struct uart_port *port) in mpc5125_psc_stop_tx() argument
836 tx_fifo_imr = in_be32(&FIFO_5125(port)->tximr); in mpc5125_psc_stop_tx()
838 out_be32(&FIFO_5125(port)->tximr, tx_fifo_imr); in mpc5125_psc_stop_tx()
841 static void mpc5125_psc_rx_clr_irq(struct uart_port *port) in mpc5125_psc_rx_clr_irq() argument
843 out_be32(&FIFO_5125(port)->rxisr, in_be32(&FIFO_5125(port)->rxisr)); in mpc5125_psc_rx_clr_irq()
846 static void mpc5125_psc_tx_clr_irq(struct uart_port *port) in mpc5125_psc_tx_clr_irq() argument
848 out_be32(&FIFO_5125(port)->txisr, in_be32(&FIFO_5125(port)->txisr)); in mpc5125_psc_tx_clr_irq()
851 static void mpc5125_psc_write_char(struct uart_port *port, unsigned char c) in mpc5125_psc_write_char() argument
853 out_8(&FIFO_5125(port)->txdata_8, c); in mpc5125_psc_write_char()
856 static unsigned char mpc5125_psc_read_char(struct uart_port *port) in mpc5125_psc_read_char() argument
858 return in_8(&FIFO_5125(port)->rxdata_8); in mpc5125_psc_read_char()
861 static void mpc5125_psc_cw_disable_ints(struct uart_port *port) in mpc5125_psc_cw_disable_ints() argument
863 port->read_status_mask = in mpc5125_psc_cw_disable_ints()
864 in_be32(&FIFO_5125(port)->tximr) << 16 | in mpc5125_psc_cw_disable_ints()
865 in_be32(&FIFO_5125(port)->rximr); in mpc5125_psc_cw_disable_ints()
866 out_be32(&FIFO_5125(port)->tximr, 0); in mpc5125_psc_cw_disable_ints()
867 out_be32(&FIFO_5125(port)->rximr, 0); in mpc5125_psc_cw_disable_ints()
870 static void mpc5125_psc_cw_restore_ints(struct uart_port *port) in mpc5125_psc_cw_restore_ints() argument
872 out_be32(&FIFO_5125(port)->tximr, in mpc5125_psc_cw_restore_ints()
873 (port->read_status_mask >> 16) & 0x7f); in mpc5125_psc_cw_restore_ints()
874 out_be32(&FIFO_5125(port)->rximr, port->read_status_mask & 0x7f); in mpc5125_psc_cw_restore_ints()
886 static unsigned int mpc5125_psc_set_baudrate(struct uart_port *port, in mpc5125_psc_set_baudrate() argument
898 baud = uart_get_baud_rate(port, new, old, in mpc5125_psc_set_baudrate()
899 port->uartclk / (16 * 0xffff) + 1, in mpc5125_psc_set_baudrate()
900 port->uartclk / 16); in mpc5125_psc_set_baudrate()
901 divisor = (port->uartclk + 8 * baud) / (16 * baud); in mpc5125_psc_set_baudrate()
904 mpc5125_set_divisor(PSC_5125(port), 0xdd, divisor); in mpc5125_psc_set_baudrate()
912 static u16 mpc5125_psc_get_status(struct uart_port *port) in mpc5125_psc_get_status() argument
914 return in_be16(&PSC_5125(port)->mpc52xx_psc_status); in mpc5125_psc_get_status()
917 static u8 mpc5125_psc_get_ipcr(struct uart_port *port) in mpc5125_psc_get_ipcr() argument
919 return in_8(&PSC_5125(port)->mpc52xx_psc_ipcr); in mpc5125_psc_get_ipcr()
922 static void mpc5125_psc_command(struct uart_port *port, u8 cmd) in mpc5125_psc_command() argument
924 out_8(&PSC_5125(port)->command, cmd); in mpc5125_psc_command()
927 static void mpc5125_psc_set_mode(struct uart_port *port, u8 mr1, u8 mr2) in mpc5125_psc_set_mode() argument
929 out_8(&PSC_5125(port)->mr1, mr1); in mpc5125_psc_set_mode()
930 out_8(&PSC_5125(port)->mr2, mr2); in mpc5125_psc_set_mode()
933 static void mpc5125_psc_set_rts(struct uart_port *port, int state) in mpc5125_psc_set_rts() argument
936 out_8(&PSC_5125(port)->op1, MPC52xx_PSC_OP_RTS); in mpc5125_psc_set_rts()
938 out_8(&PSC_5125(port)->op0, MPC52xx_PSC_OP_RTS); in mpc5125_psc_set_rts()
941 static void mpc5125_psc_enable_ms(struct uart_port *port) in mpc5125_psc_enable_ms() argument
943 struct mpc5125_psc __iomem *psc = PSC_5125(port); in mpc5125_psc_enable_ms()
950 port->read_status_mask |= MPC52xx_PSC_IMR_IPC; in mpc5125_psc_enable_ms()
951 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc5125_psc_enable_ms()
954 static void mpc5125_psc_set_sicr(struct uart_port *port, u32 val) in mpc5125_psc_set_sicr() argument
956 out_be32(&PSC_5125(port)->sicr, val); in mpc5125_psc_set_sicr()
959 static void mpc5125_psc_set_imr(struct uart_port *port, u16 val) in mpc5125_psc_set_imr() argument
961 out_be16(&PSC_5125(port)->mpc52xx_psc_imr, val); in mpc5125_psc_set_imr()
964 static u8 mpc5125_psc_get_mr1(struct uart_port *port) in mpc5125_psc_get_mr1() argument
966 return in_8(&PSC_5125(port)->mr1); in mpc5125_psc_get_mr1()
1048 mpc52xx_uart_tx_empty(struct uart_port *port) in mpc52xx_uart_tx_empty() argument
1050 return psc_ops->tx_empty(port) ? TIOCSER_TEMT : 0; in mpc52xx_uart_tx_empty()
1054 mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) in mpc52xx_uart_set_mctrl() argument
1056 psc_ops->set_rts(port, mctrl & TIOCM_RTS); in mpc52xx_uart_set_mctrl()
1060 mpc52xx_uart_get_mctrl(struct uart_port *port) in mpc52xx_uart_get_mctrl() argument
1063 u8 status = psc_ops->get_ipcr(port); in mpc52xx_uart_get_mctrl()
1074 mpc52xx_uart_stop_tx(struct uart_port *port) in mpc52xx_uart_stop_tx() argument
1077 psc_ops->stop_tx(port); in mpc52xx_uart_stop_tx()
1081 mpc52xx_uart_start_tx(struct uart_port *port) in mpc52xx_uart_start_tx() argument
1084 psc_ops->start_tx(port); in mpc52xx_uart_start_tx()
1088 mpc52xx_uart_stop_rx(struct uart_port *port) in mpc52xx_uart_stop_rx() argument
1091 psc_ops->stop_rx(port); in mpc52xx_uart_stop_rx()
1095 mpc52xx_uart_enable_ms(struct uart_port *port) in mpc52xx_uart_enable_ms() argument
1097 psc_ops->enable_ms(port); in mpc52xx_uart_enable_ms()
1101 mpc52xx_uart_break_ctl(struct uart_port *port, int ctl) in mpc52xx_uart_break_ctl() argument
1104 spin_lock_irqsave(&port->lock, flags); in mpc52xx_uart_break_ctl()
1107 psc_ops->command(port, MPC52xx_PSC_START_BRK); in mpc52xx_uart_break_ctl()
1109 psc_ops->command(port, MPC52xx_PSC_STOP_BRK); in mpc52xx_uart_break_ctl()
1111 spin_unlock_irqrestore(&port->lock, flags); in mpc52xx_uart_break_ctl()
1115 mpc52xx_uart_startup(struct uart_port *port) in mpc52xx_uart_startup() argument
1120 ret = psc_ops->clock(port, 1); in mpc52xx_uart_startup()
1126 ret = request_irq(port->irq, mpc52xx_uart_int, in mpc52xx_uart_startup()
1127 port->irqflags, "mpc52xx_psc_uart", port); in mpc52xx_uart_startup()
1132 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_startup()
1133 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_startup()
1142 psc_ops->set_sicr(port, 0); /* UART mode DCD ignored */ in mpc52xx_uart_startup()
1144 psc_ops->fifo_init(port); in mpc52xx_uart_startup()
1146 psc_ops->command(port, MPC52xx_PSC_TX_ENABLE); in mpc52xx_uart_startup()
1147 psc_ops->command(port, MPC52xx_PSC_RX_ENABLE); in mpc52xx_uart_startup()
1153 mpc52xx_uart_shutdown(struct uart_port *port) in mpc52xx_uart_shutdown() argument
1156 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_shutdown()
1157 if (!uart_console(port)) in mpc52xx_uart_shutdown()
1158 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_shutdown()
1160 port->read_status_mask = 0; in mpc52xx_uart_shutdown()
1161 psc_ops->set_imr(port, port->read_status_mask); in mpc52xx_uart_shutdown()
1164 psc_ops->clock(port, 0); in mpc52xx_uart_shutdown()
1167 psc_ops->cw_disable_ints(port); in mpc52xx_uart_shutdown()
1170 free_irq(port->irq, port); in mpc52xx_uart_shutdown()
1174 mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new, in mpc52xx_uart_set_termios() argument
1222 spin_lock_irqsave(&port->lock, flags); in mpc52xx_uart_set_termios()
1231 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_uart_set_termios()
1240 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_set_termios()
1241 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_set_termios()
1244 psc_ops->set_mode(port, mr1, mr2); in mpc52xx_uart_set_termios()
1245 baud = psc_ops->set_baudrate(port, new, old); in mpc52xx_uart_set_termios()
1248 uart_update_timeout(port, new->c_cflag, baud); in mpc52xx_uart_set_termios()
1250 if (UART_ENABLE_MS(port, new->c_cflag)) in mpc52xx_uart_set_termios()
1251 mpc52xx_uart_enable_ms(port); in mpc52xx_uart_set_termios()
1254 psc_ops->command(port, MPC52xx_PSC_TX_ENABLE); in mpc52xx_uart_set_termios()
1255 psc_ops->command(port, MPC52xx_PSC_RX_ENABLE); in mpc52xx_uart_set_termios()
1258 spin_unlock_irqrestore(&port->lock, flags); in mpc52xx_uart_set_termios()
1262 mpc52xx_uart_type(struct uart_port *port) in mpc52xx_uart_type() argument
1268 return port->type == PORT_MPC52xx ? "MPC5xxx PSC" : NULL; in mpc52xx_uart_type()
1272 mpc52xx_uart_release_port(struct uart_port *port) in mpc52xx_uart_release_port() argument
1275 psc_ops->clock_relse(port); in mpc52xx_uart_release_port()
1278 if (port->flags & UPF_IOREMAP) { in mpc52xx_uart_release_port()
1279 iounmap(port->membase); in mpc52xx_uart_release_port()
1280 port->membase = NULL; in mpc52xx_uart_release_port()
1283 release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); in mpc52xx_uart_release_port()
1287 mpc52xx_uart_request_port(struct uart_port *port) in mpc52xx_uart_request_port() argument
1291 if (port->flags & UPF_IOREMAP) /* Need to remap ? */ in mpc52xx_uart_request_port()
1292 port->membase = ioremap(port->mapbase, in mpc52xx_uart_request_port()
1295 if (!port->membase) in mpc52xx_uart_request_port()
1298 err = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc), in mpc52xx_uart_request_port()
1305 err = psc_ops->clock_alloc(port); in mpc52xx_uart_request_port()
1313 release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); in mpc52xx_uart_request_port()
1315 if (port->flags & UPF_IOREMAP) { in mpc52xx_uart_request_port()
1316 iounmap(port->membase); in mpc52xx_uart_request_port()
1317 port->membase = NULL; in mpc52xx_uart_request_port()
1323 mpc52xx_uart_config_port(struct uart_port *port, int flags) in mpc52xx_uart_config_port() argument
1326 && (mpc52xx_uart_request_port(port) == 0)) in mpc52xx_uart_config_port()
1327 port->type = PORT_MPC52xx; in mpc52xx_uart_config_port()
1331 mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) in mpc52xx_uart_verify_port() argument
1336 if ((ser->irq != port->irq) || in mpc52xx_uart_verify_port()
1338 (ser->baud_base != port->uartclk) || in mpc52xx_uart_verify_port()
1339 (ser->iomem_base != (void *)port->mapbase) || in mpc52xx_uart_verify_port()
1373 mpc52xx_uart_int_rx_chars(struct uart_port *port) in mpc52xx_uart_int_rx_chars() argument
1375 struct tty_port *tport = &port->state->port; in mpc52xx_uart_int_rx_chars()
1380 while (psc_ops->raw_rx_rdy(port)) { in mpc52xx_uart_int_rx_chars()
1382 ch = psc_ops->read_char(port); in mpc52xx_uart_int_rx_chars()
1386 if (uart_handle_sysrq_char(port, ch)) { in mpc52xx_uart_int_rx_chars()
1387 port->sysrq = 0; in mpc52xx_uart_int_rx_chars()
1395 port->icount.rx++; in mpc52xx_uart_int_rx_chars()
1397 status = psc_ops->get_status(port); in mpc52xx_uart_int_rx_chars()
1405 uart_handle_break(port); in mpc52xx_uart_int_rx_chars()
1406 port->icount.brk++; in mpc52xx_uart_int_rx_chars()
1409 port->icount.parity++; in mpc52xx_uart_int_rx_chars()
1413 port->icount.frame++; in mpc52xx_uart_int_rx_chars()
1417 psc_ops->command(port, MPC52xx_PSC_RST_ERR_STAT); in mpc52xx_uart_int_rx_chars()
1428 port->icount.overrun++; in mpc52xx_uart_int_rx_chars()
1432 spin_unlock(&port->lock); in mpc52xx_uart_int_rx_chars()
1434 spin_lock(&port->lock); in mpc52xx_uart_int_rx_chars()
1436 return psc_ops->raw_rx_rdy(port); in mpc52xx_uart_int_rx_chars()
1440 mpc52xx_uart_int_tx_chars(struct uart_port *port) in mpc52xx_uart_int_tx_chars() argument
1442 struct circ_buf *xmit = &port->state->xmit; in mpc52xx_uart_int_tx_chars()
1445 if (port->x_char) { in mpc52xx_uart_int_tx_chars()
1446 psc_ops->write_char(port, port->x_char); in mpc52xx_uart_int_tx_chars()
1447 port->icount.tx++; in mpc52xx_uart_int_tx_chars()
1448 port->x_char = 0; in mpc52xx_uart_int_tx_chars()
1453 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { in mpc52xx_uart_int_tx_chars()
1454 mpc52xx_uart_stop_tx(port); in mpc52xx_uart_int_tx_chars()
1459 while (psc_ops->raw_tx_rdy(port)) { in mpc52xx_uart_int_tx_chars()
1460 psc_ops->write_char(port, xmit->buf[xmit->tail]); in mpc52xx_uart_int_tx_chars()
1462 port->icount.tx++; in mpc52xx_uart_int_tx_chars()
1469 uart_write_wakeup(port); in mpc52xx_uart_int_tx_chars()
1473 mpc52xx_uart_stop_tx(port); in mpc52xx_uart_int_tx_chars()
1481 mpc5xxx_uart_process_int(struct uart_port *port) in mpc5xxx_uart_process_int() argument
1492 psc_ops->rx_clr_irq(port); in mpc5xxx_uart_process_int()
1493 if (psc_ops->rx_rdy(port)) in mpc5xxx_uart_process_int()
1494 keepgoing |= mpc52xx_uart_int_rx_chars(port); in mpc5xxx_uart_process_int()
1496 psc_ops->tx_clr_irq(port); in mpc5xxx_uart_process_int()
1497 if (psc_ops->tx_rdy(port)) in mpc5xxx_uart_process_int()
1498 keepgoing |= mpc52xx_uart_int_tx_chars(port); in mpc5xxx_uart_process_int()
1500 status = psc_ops->get_ipcr(port); in mpc5xxx_uart_process_int()
1502 uart_handle_dcd_change(port, !(status & MPC52xx_PSC_DCD)); in mpc5xxx_uart_process_int()
1505 uart_handle_cts_change(port, !(status & MPC52xx_PSC_CTS)); in mpc5xxx_uart_process_int()
1519 struct uart_port *port = dev_id; in mpc52xx_uart_int() local
1522 spin_lock(&port->lock); in mpc52xx_uart_int()
1524 ret = psc_ops->handle_irq(port); in mpc52xx_uart_int()
1526 spin_unlock(&port->lock); in mpc52xx_uart_int()
1538 mpc52xx_console_get_options(struct uart_port *port, in mpc52xx_console_get_options() argument
1543 pr_debug("mpc52xx_console_get_options(port=%p)\n", port); in mpc52xx_console_get_options()
1546 mr1 = psc_ops->get_mr1(port); in mpc52xx_console_get_options()
1576 struct uart_port *port = &mpc52xx_uart_ports[co->index]; in mpc52xx_console_write() local
1580 psc_ops->cw_disable_ints(port); in mpc52xx_console_write()
1584 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_console_write()
1591 psc_ops->write_char(port, '\r'); in mpc52xx_console_write()
1594 psc_ops->write_char(port, *s); in mpc52xx_console_write()
1598 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_console_write()
1603 psc_ops->cw_restore_ints(port); in mpc52xx_console_write()
1610 struct uart_port *port = &mpc52xx_uart_ports[co->index]; in mpc52xx_console_setup() local
1652 spin_lock_init(&port->lock); in mpc52xx_console_setup()
1653 port->uartclk = uartclk; in mpc52xx_console_setup()
1654 port->ops = &mpc52xx_uart_ops; in mpc52xx_console_setup()
1655 port->mapbase = res.start; in mpc52xx_console_setup()
1656 port->membase = ioremap(res.start, sizeof(struct mpc52xx_psc)); in mpc52xx_console_setup()
1657 port->irq = irq_of_parse_and_map(np, 0); in mpc52xx_console_setup()
1659 if (port->membase == NULL) in mpc52xx_console_setup()
1663 (void *)port->mapbase, port->membase, in mpc52xx_console_setup()
1664 port->irq, port->uartclk); in mpc52xx_console_setup()
1670 mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow); in mpc52xx_console_setup()
1675 return uart_set_options(port, co, baud, parity, bits, flow); in mpc52xx_console_setup()
1745 struct uart_port *port = NULL; in mpc52xx_uart_of_probe() local
1768 port = &mpc52xx_uart_ports[idx]; in mpc52xx_uart_of_probe()
1770 spin_lock_init(&port->lock); in mpc52xx_uart_of_probe()
1771 port->uartclk = uartclk; in mpc52xx_uart_of_probe()
1772 port->fifosize = 512; in mpc52xx_uart_of_probe()
1773 port->iotype = UPIO_MEM; in mpc52xx_uart_of_probe()
1774 port->flags = UPF_BOOT_AUTOCONF | in mpc52xx_uart_of_probe()
1775 (uart_console(port) ? 0 : UPF_IOREMAP); in mpc52xx_uart_of_probe()
1776 port->line = idx; in mpc52xx_uart_of_probe()
1777 port->ops = &mpc52xx_uart_ops; in mpc52xx_uart_of_probe()
1778 port->dev = &op->dev; in mpc52xx_uart_of_probe()
1785 port->mapbase = res.start; in mpc52xx_uart_of_probe()
1786 if (!port->mapbase) { in mpc52xx_uart_of_probe()
1791 psc_ops->get_irq(port, op->dev.of_node); in mpc52xx_uart_of_probe()
1792 if (port->irq == 0) { in mpc52xx_uart_of_probe()
1798 (void *)port->mapbase, port->irq, port->uartclk); in mpc52xx_uart_of_probe()
1801 ret = uart_add_one_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_probe()
1805 platform_set_drvdata(op, (void *)port); in mpc52xx_uart_of_probe()
1812 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_remove() local
1814 if (port) in mpc52xx_uart_of_remove()
1815 uart_remove_one_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_remove()
1824 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_suspend() local
1826 if (port) in mpc52xx_uart_of_suspend()
1827 uart_suspend_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_suspend()
1835 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_resume() local
1837 if (port) in mpc52xx_uart_of_resume()
1838 uart_resume_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_resume()