Lines Matching refs:port
80 #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase)) argument
85 static irqreturn_t mpc5xxx_uart_process_int(struct uart_port *port);
92 void (*fifo_init)(struct uart_port *port);
93 int (*raw_rx_rdy)(struct uart_port *port);
94 int (*raw_tx_rdy)(struct uart_port *port);
95 int (*rx_rdy)(struct uart_port *port);
96 int (*tx_rdy)(struct uart_port *port);
97 int (*tx_empty)(struct uart_port *port);
98 void (*stop_rx)(struct uart_port *port);
99 void (*start_tx)(struct uart_port *port);
100 void (*stop_tx)(struct uart_port *port);
101 void (*rx_clr_irq)(struct uart_port *port);
102 void (*tx_clr_irq)(struct uart_port *port);
103 void (*write_char)(struct uart_port *port, unsigned char c);
104 unsigned char (*read_char)(struct uart_port *port);
105 void (*cw_disable_ints)(struct uart_port *port);
106 void (*cw_restore_ints)(struct uart_port *port);
107 unsigned int (*set_baudrate)(struct uart_port *port,
110 int (*clock_alloc)(struct uart_port *port);
111 void (*clock_relse)(struct uart_port *port);
112 int (*clock)(struct uart_port *port, int enable);
116 irqreturn_t (*handle_irq)(struct uart_port *port);
117 u16 (*get_status)(struct uart_port *port);
118 u8 (*get_ipcr)(struct uart_port *port);
119 void (*command)(struct uart_port *port, u8 cmd);
120 void (*set_mode)(struct uart_port *port, u8 mr1, u8 mr2);
121 void (*set_rts)(struct uart_port *port, int state);
122 void (*enable_ms)(struct uart_port *port);
123 void (*set_sicr)(struct uart_port *port, u32 val);
124 void (*set_imr)(struct uart_port *port, u16 val);
125 u8 (*get_mr1)(struct uart_port *port);
138 static u16 mpc52xx_psc_get_status(struct uart_port *port) in mpc52xx_psc_get_status() argument
140 return in_be16(&PSC(port)->mpc52xx_psc_status); in mpc52xx_psc_get_status()
143 static u8 mpc52xx_psc_get_ipcr(struct uart_port *port) in mpc52xx_psc_get_ipcr() argument
145 return in_8(&PSC(port)->mpc52xx_psc_ipcr); in mpc52xx_psc_get_ipcr()
148 static void mpc52xx_psc_command(struct uart_port *port, u8 cmd) in mpc52xx_psc_command() argument
150 out_8(&PSC(port)->command, cmd); in mpc52xx_psc_command()
153 static void mpc52xx_psc_set_mode(struct uart_port *port, u8 mr1, u8 mr2) in mpc52xx_psc_set_mode() argument
155 out_8(&PSC(port)->command, MPC52xx_PSC_SEL_MODE_REG_1); in mpc52xx_psc_set_mode()
156 out_8(&PSC(port)->mode, mr1); in mpc52xx_psc_set_mode()
157 out_8(&PSC(port)->mode, mr2); in mpc52xx_psc_set_mode()
160 static void mpc52xx_psc_set_rts(struct uart_port *port, int state) in mpc52xx_psc_set_rts() argument
163 out_8(&PSC(port)->op1, MPC52xx_PSC_OP_RTS); in mpc52xx_psc_set_rts()
165 out_8(&PSC(port)->op0, MPC52xx_PSC_OP_RTS); in mpc52xx_psc_set_rts()
168 static void mpc52xx_psc_enable_ms(struct uart_port *port) in mpc52xx_psc_enable_ms() argument
170 struct mpc52xx_psc __iomem *psc = PSC(port); in mpc52xx_psc_enable_ms()
177 port->read_status_mask |= MPC52xx_PSC_IMR_IPC; in mpc52xx_psc_enable_ms()
178 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_enable_ms()
181 static void mpc52xx_psc_set_sicr(struct uart_port *port, u32 val) in mpc52xx_psc_set_sicr() argument
183 out_be32(&PSC(port)->sicr, val); in mpc52xx_psc_set_sicr()
186 static void mpc52xx_psc_set_imr(struct uart_port *port, u16 val) in mpc52xx_psc_set_imr() argument
188 out_be16(&PSC(port)->mpc52xx_psc_imr, val); in mpc52xx_psc_set_imr()
191 static u8 mpc52xx_psc_get_mr1(struct uart_port *port) in mpc52xx_psc_get_mr1() argument
193 out_8(&PSC(port)->command, MPC52xx_PSC_SEL_MODE_REG_1); in mpc52xx_psc_get_mr1()
194 return in_8(&PSC(port)->mode); in mpc52xx_psc_get_mr1()
198 #define FIFO_52xx(port) ((struct mpc52xx_psc_fifo __iomem *)(PSC(port)+1)) argument
199 static void mpc52xx_psc_fifo_init(struct uart_port *port) in mpc52xx_psc_fifo_init() argument
201 struct mpc52xx_psc __iomem *psc = PSC(port); in mpc52xx_psc_fifo_init()
202 struct mpc52xx_psc_fifo __iomem *fifo = FIFO_52xx(port); in mpc52xx_psc_fifo_init()
209 port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_fifo_init()
210 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_fifo_init()
213 static int mpc52xx_psc_raw_rx_rdy(struct uart_port *port) in mpc52xx_psc_raw_rx_rdy() argument
215 return in_be16(&PSC(port)->mpc52xx_psc_status) in mpc52xx_psc_raw_rx_rdy()
219 static int mpc52xx_psc_raw_tx_rdy(struct uart_port *port) in mpc52xx_psc_raw_tx_rdy() argument
221 return in_be16(&PSC(port)->mpc52xx_psc_status) in mpc52xx_psc_raw_tx_rdy()
226 static int mpc52xx_psc_rx_rdy(struct uart_port *port) in mpc52xx_psc_rx_rdy() argument
228 return in_be16(&PSC(port)->mpc52xx_psc_isr) in mpc52xx_psc_rx_rdy()
229 & port->read_status_mask in mpc52xx_psc_rx_rdy()
233 static int mpc52xx_psc_tx_rdy(struct uart_port *port) in mpc52xx_psc_tx_rdy() argument
235 return in_be16(&PSC(port)->mpc52xx_psc_isr) in mpc52xx_psc_tx_rdy()
236 & port->read_status_mask in mpc52xx_psc_tx_rdy()
240 static int mpc52xx_psc_tx_empty(struct uart_port *port) in mpc52xx_psc_tx_empty() argument
242 return in_be16(&PSC(port)->mpc52xx_psc_status) in mpc52xx_psc_tx_empty()
246 static void mpc52xx_psc_start_tx(struct uart_port *port) in mpc52xx_psc_start_tx() argument
248 port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_start_tx()
249 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_start_tx()
252 static void mpc52xx_psc_stop_tx(struct uart_port *port) in mpc52xx_psc_stop_tx() argument
254 port->read_status_mask &= ~MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_stop_tx()
255 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_stop_tx()
258 static void mpc52xx_psc_stop_rx(struct uart_port *port) in mpc52xx_psc_stop_rx() argument
260 port->read_status_mask &= ~MPC52xx_PSC_IMR_RXRDY; in mpc52xx_psc_stop_rx()
261 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_stop_rx()
264 static void mpc52xx_psc_rx_clr_irq(struct uart_port *port) in mpc52xx_psc_rx_clr_irq() argument
268 static void mpc52xx_psc_tx_clr_irq(struct uart_port *port) in mpc52xx_psc_tx_clr_irq() argument
272 static void mpc52xx_psc_write_char(struct uart_port *port, unsigned char c) in mpc52xx_psc_write_char() argument
274 out_8(&PSC(port)->mpc52xx_psc_buffer_8, c); in mpc52xx_psc_write_char()
277 static unsigned char mpc52xx_psc_read_char(struct uart_port *port) in mpc52xx_psc_read_char() argument
279 return in_8(&PSC(port)->mpc52xx_psc_buffer_8); in mpc52xx_psc_read_char()
282 static void mpc52xx_psc_cw_disable_ints(struct uart_port *port) in mpc52xx_psc_cw_disable_ints() argument
284 out_be16(&PSC(port)->mpc52xx_psc_imr, 0); in mpc52xx_psc_cw_disable_ints()
287 static void mpc52xx_psc_cw_restore_ints(struct uart_port *port) in mpc52xx_psc_cw_restore_ints() argument
289 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_cw_restore_ints()
292 static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port, in mpc5200_psc_set_baudrate() argument
300 baud = uart_get_baud_rate(port, new, old, in mpc5200_psc_set_baudrate()
301 port->uartclk / (32 * 0xffff) + 1, in mpc5200_psc_set_baudrate()
302 port->uartclk / 32); in mpc5200_psc_set_baudrate()
303 divisor = (port->uartclk + 16 * baud) / (32 * baud); in mpc5200_psc_set_baudrate()
306 mpc52xx_set_divisor(PSC(port), 0xdd00, divisor); in mpc5200_psc_set_baudrate()
310 static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port, in mpc5200b_psc_set_baudrate() argument
320 baud = uart_get_baud_rate(port, new, old, in mpc5200b_psc_set_baudrate()
321 port->uartclk / (32 * 0xffff) + 1, in mpc5200b_psc_set_baudrate()
322 port->uartclk / 4); in mpc5200b_psc_set_baudrate()
323 divisor = (port->uartclk + 2 * baud) / (4 * baud); in mpc5200b_psc_set_baudrate()
332 mpc52xx_set_divisor(PSC(port), prescaler, divisor); in mpc5200b_psc_set_baudrate()
336 static void mpc52xx_psc_get_irq(struct uart_port *port, struct device_node *np) in mpc52xx_psc_get_irq() argument
338 port->irqflags = 0; in mpc52xx_psc_get_irq()
339 port->irq = irq_of_parse_and_map(np, 0); in mpc52xx_psc_get_irq()
343 static irqreturn_t mpc52xx_psc_handle_irq(struct uart_port *port) in mpc52xx_psc_handle_irq() argument
345 return mpc5xxx_uart_process_int(port); in mpc52xx_psc_handle_irq()
411 #define FIFO_512x(port) ((struct mpc512x_psc_fifo __iomem *)(PSC(port)+1)) argument
426 static void mpc512x_psc_fifo_init(struct uart_port *port) in mpc512x_psc_fifo_init() argument
429 out_be16(&PSC(port)->mpc52xx_psc_clock_select, 0xdd00); in mpc512x_psc_fifo_init()
431 out_be32(&FIFO_512x(port)->txcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc512x_psc_fifo_init()
432 out_be32(&FIFO_512x(port)->txcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc512x_psc_fifo_init()
433 out_be32(&FIFO_512x(port)->txalarm, 1); in mpc512x_psc_fifo_init()
434 out_be32(&FIFO_512x(port)->tximr, 0); in mpc512x_psc_fifo_init()
436 out_be32(&FIFO_512x(port)->rxcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc512x_psc_fifo_init()
437 out_be32(&FIFO_512x(port)->rxcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc512x_psc_fifo_init()
438 out_be32(&FIFO_512x(port)->rxalarm, 1); in mpc512x_psc_fifo_init()
439 out_be32(&FIFO_512x(port)->rximr, 0); in mpc512x_psc_fifo_init()
441 out_be32(&FIFO_512x(port)->tximr, MPC512x_PSC_FIFO_ALARM); in mpc512x_psc_fifo_init()
442 out_be32(&FIFO_512x(port)->rximr, MPC512x_PSC_FIFO_ALARM); in mpc512x_psc_fifo_init()
445 static int mpc512x_psc_raw_rx_rdy(struct uart_port *port) in mpc512x_psc_raw_rx_rdy() argument
447 return !(in_be32(&FIFO_512x(port)->rxsr) & MPC512x_PSC_FIFO_EMPTY); in mpc512x_psc_raw_rx_rdy()
450 static int mpc512x_psc_raw_tx_rdy(struct uart_port *port) in mpc512x_psc_raw_tx_rdy() argument
452 return !(in_be32(&FIFO_512x(port)->txsr) & MPC512x_PSC_FIFO_FULL); in mpc512x_psc_raw_tx_rdy()
455 static int mpc512x_psc_rx_rdy(struct uart_port *port) in mpc512x_psc_rx_rdy() argument
457 return in_be32(&FIFO_512x(port)->rxsr) in mpc512x_psc_rx_rdy()
458 & in_be32(&FIFO_512x(port)->rximr) in mpc512x_psc_rx_rdy()
462 static int mpc512x_psc_tx_rdy(struct uart_port *port) in mpc512x_psc_tx_rdy() argument
464 return in_be32(&FIFO_512x(port)->txsr) in mpc512x_psc_tx_rdy()
465 & in_be32(&FIFO_512x(port)->tximr) in mpc512x_psc_tx_rdy()
469 static int mpc512x_psc_tx_empty(struct uart_port *port) in mpc512x_psc_tx_empty() argument
471 return in_be32(&FIFO_512x(port)->txsr) in mpc512x_psc_tx_empty()
475 static void mpc512x_psc_stop_rx(struct uart_port *port) in mpc512x_psc_stop_rx() argument
479 rx_fifo_imr = in_be32(&FIFO_512x(port)->rximr); in mpc512x_psc_stop_rx()
481 out_be32(&FIFO_512x(port)->rximr, rx_fifo_imr); in mpc512x_psc_stop_rx()
484 static void mpc512x_psc_start_tx(struct uart_port *port) in mpc512x_psc_start_tx() argument
488 tx_fifo_imr = in_be32(&FIFO_512x(port)->tximr); in mpc512x_psc_start_tx()
490 out_be32(&FIFO_512x(port)->tximr, tx_fifo_imr); in mpc512x_psc_start_tx()
493 static void mpc512x_psc_stop_tx(struct uart_port *port) in mpc512x_psc_stop_tx() argument
497 tx_fifo_imr = in_be32(&FIFO_512x(port)->tximr); in mpc512x_psc_stop_tx()
499 out_be32(&FIFO_512x(port)->tximr, tx_fifo_imr); in mpc512x_psc_stop_tx()
502 static void mpc512x_psc_rx_clr_irq(struct uart_port *port) in mpc512x_psc_rx_clr_irq() argument
504 out_be32(&FIFO_512x(port)->rxisr, in_be32(&FIFO_512x(port)->rxisr)); in mpc512x_psc_rx_clr_irq()
507 static void mpc512x_psc_tx_clr_irq(struct uart_port *port) in mpc512x_psc_tx_clr_irq() argument
509 out_be32(&FIFO_512x(port)->txisr, in_be32(&FIFO_512x(port)->txisr)); in mpc512x_psc_tx_clr_irq()
512 static void mpc512x_psc_write_char(struct uart_port *port, unsigned char c) in mpc512x_psc_write_char() argument
514 out_8(&FIFO_512x(port)->txdata_8, c); in mpc512x_psc_write_char()
517 static unsigned char mpc512x_psc_read_char(struct uart_port *port) in mpc512x_psc_read_char() argument
519 return in_8(&FIFO_512x(port)->rxdata_8); in mpc512x_psc_read_char()
522 static void mpc512x_psc_cw_disable_ints(struct uart_port *port) in mpc512x_psc_cw_disable_ints() argument
524 port->read_status_mask = in mpc512x_psc_cw_disable_ints()
525 in_be32(&FIFO_512x(port)->tximr) << 16 | in mpc512x_psc_cw_disable_ints()
526 in_be32(&FIFO_512x(port)->rximr); in mpc512x_psc_cw_disable_ints()
527 out_be32(&FIFO_512x(port)->tximr, 0); in mpc512x_psc_cw_disable_ints()
528 out_be32(&FIFO_512x(port)->rximr, 0); in mpc512x_psc_cw_disable_ints()
531 static void mpc512x_psc_cw_restore_ints(struct uart_port *port) in mpc512x_psc_cw_restore_ints() argument
533 out_be32(&FIFO_512x(port)->tximr, in mpc512x_psc_cw_restore_ints()
534 (port->read_status_mask >> 16) & 0x7f); in mpc512x_psc_cw_restore_ints()
535 out_be32(&FIFO_512x(port)->rximr, port->read_status_mask & 0x7f); in mpc512x_psc_cw_restore_ints()
538 static unsigned int mpc512x_psc_set_baudrate(struct uart_port *port, in mpc512x_psc_set_baudrate() argument
559 baud = uart_get_baud_rate(port, new, old, in mpc512x_psc_set_baudrate()
560 port->uartclk / (16 * 0xffff) + 1, in mpc512x_psc_set_baudrate()
561 port->uartclk / 16); in mpc512x_psc_set_baudrate()
562 divisor = (port->uartclk + 8 * baud) / (16 * baud); in mpc512x_psc_set_baudrate()
565 mpc52xx_set_divisor(PSC(port), 0xdd00, divisor); in mpc512x_psc_set_baudrate()
642 static irqreturn_t mpc512x_psc_handle_irq(struct uart_port *port) in mpc512x_psc_handle_irq() argument
651 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_handle_irq()
654 return mpc5xxx_uart_process_int(port); in mpc512x_psc_handle_irq()
663 static int mpc512x_psc_alloc_clock(struct uart_port *port) in mpc512x_psc_alloc_clock() argument
669 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_alloc_clock()
671 clk = devm_clk_get(port->dev, "mclk"); in mpc512x_psc_alloc_clock()
673 dev_err(port->dev, "Failed to get MCLK!\n"); in mpc512x_psc_alloc_clock()
679 dev_err(port->dev, "Failed to enable MCLK!\n"); in mpc512x_psc_alloc_clock()
684 clk = devm_clk_get(port->dev, "ipg"); in mpc512x_psc_alloc_clock()
686 dev_err(port->dev, "Failed to get IPG clock!\n"); in mpc512x_psc_alloc_clock()
692 dev_err(port->dev, "Failed to enable IPG clock!\n"); in mpc512x_psc_alloc_clock()
712 static void mpc512x_psc_relse_clock(struct uart_port *port) in mpc512x_psc_relse_clock() argument
717 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_relse_clock()
730 static int mpc512x_psc_endis_clock(struct uart_port *port, int enable) in mpc512x_psc_endis_clock() argument
736 if (uart_console(port)) in mpc512x_psc_endis_clock()
739 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_endis_clock()
742 dev_err(port->dev, "Failed to get PSC clock entry!\n"); in mpc512x_psc_endis_clock()
746 dev_dbg(port->dev, "mclk %sable\n", enable ? "en" : "dis"); in mpc512x_psc_endis_clock()
750 dev_err(port->dev, "Failed to enable MCLK!\n"); in mpc512x_psc_endis_clock()
758 static void mpc512x_psc_get_irq(struct uart_port *port, struct device_node *np) in mpc512x_psc_get_irq() argument
760 port->irqflags = IRQF_SHARED; in mpc512x_psc_get_irq()
761 port->irq = psc_fifoc_irq; in mpc512x_psc_get_irq()
767 #define PSC_5125(port) ((struct mpc5125_psc __iomem *)((port)->membase)) argument
768 #define FIFO_5125(port) ((struct mpc512x_psc_fifo __iomem *)(PSC_5125(port)+1)) argument
770 static void mpc5125_psc_fifo_init(struct uart_port *port) in mpc5125_psc_fifo_init() argument
773 out_8(&PSC_5125(port)->mpc52xx_psc_clock_select, 0xdd); in mpc5125_psc_fifo_init()
775 out_be32(&FIFO_5125(port)->txcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc5125_psc_fifo_init()
776 out_be32(&FIFO_5125(port)->txcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc5125_psc_fifo_init()
777 out_be32(&FIFO_5125(port)->txalarm, 1); in mpc5125_psc_fifo_init()
778 out_be32(&FIFO_5125(port)->tximr, 0); in mpc5125_psc_fifo_init()
780 out_be32(&FIFO_5125(port)->rxcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc5125_psc_fifo_init()
781 out_be32(&FIFO_5125(port)->rxcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc5125_psc_fifo_init()
782 out_be32(&FIFO_5125(port)->rxalarm, 1); in mpc5125_psc_fifo_init()
783 out_be32(&FIFO_5125(port)->rximr, 0); in mpc5125_psc_fifo_init()
785 out_be32(&FIFO_5125(port)->tximr, MPC512x_PSC_FIFO_ALARM); in mpc5125_psc_fifo_init()
786 out_be32(&FIFO_5125(port)->rximr, MPC512x_PSC_FIFO_ALARM); in mpc5125_psc_fifo_init()
789 static int mpc5125_psc_raw_rx_rdy(struct uart_port *port) in mpc5125_psc_raw_rx_rdy() argument
791 return !(in_be32(&FIFO_5125(port)->rxsr) & MPC512x_PSC_FIFO_EMPTY); in mpc5125_psc_raw_rx_rdy()
794 static int mpc5125_psc_raw_tx_rdy(struct uart_port *port) in mpc5125_psc_raw_tx_rdy() argument
796 return !(in_be32(&FIFO_5125(port)->txsr) & MPC512x_PSC_FIFO_FULL); in mpc5125_psc_raw_tx_rdy()
799 static int mpc5125_psc_rx_rdy(struct uart_port *port) in mpc5125_psc_rx_rdy() argument
801 return in_be32(&FIFO_5125(port)->rxsr) & in mpc5125_psc_rx_rdy()
802 in_be32(&FIFO_5125(port)->rximr) & MPC512x_PSC_FIFO_ALARM; in mpc5125_psc_rx_rdy()
805 static int mpc5125_psc_tx_rdy(struct uart_port *port) in mpc5125_psc_tx_rdy() argument
807 return in_be32(&FIFO_5125(port)->txsr) & in mpc5125_psc_tx_rdy()
808 in_be32(&FIFO_5125(port)->tximr) & MPC512x_PSC_FIFO_ALARM; in mpc5125_psc_tx_rdy()
811 static int mpc5125_psc_tx_empty(struct uart_port *port) in mpc5125_psc_tx_empty() argument
813 return in_be32(&FIFO_5125(port)->txsr) & MPC512x_PSC_FIFO_EMPTY; in mpc5125_psc_tx_empty()
816 static void mpc5125_psc_stop_rx(struct uart_port *port) in mpc5125_psc_stop_rx() argument
820 rx_fifo_imr = in_be32(&FIFO_5125(port)->rximr); in mpc5125_psc_stop_rx()
822 out_be32(&FIFO_5125(port)->rximr, rx_fifo_imr); in mpc5125_psc_stop_rx()
825 static void mpc5125_psc_start_tx(struct uart_port *port) in mpc5125_psc_start_tx() argument
829 tx_fifo_imr = in_be32(&FIFO_5125(port)->tximr); in mpc5125_psc_start_tx()
831 out_be32(&FIFO_5125(port)->tximr, tx_fifo_imr); in mpc5125_psc_start_tx()
834 static void mpc5125_psc_stop_tx(struct uart_port *port) in mpc5125_psc_stop_tx() argument
838 tx_fifo_imr = in_be32(&FIFO_5125(port)->tximr); in mpc5125_psc_stop_tx()
840 out_be32(&FIFO_5125(port)->tximr, tx_fifo_imr); in mpc5125_psc_stop_tx()
843 static void mpc5125_psc_rx_clr_irq(struct uart_port *port) in mpc5125_psc_rx_clr_irq() argument
845 out_be32(&FIFO_5125(port)->rxisr, in_be32(&FIFO_5125(port)->rxisr)); in mpc5125_psc_rx_clr_irq()
848 static void mpc5125_psc_tx_clr_irq(struct uart_port *port) in mpc5125_psc_tx_clr_irq() argument
850 out_be32(&FIFO_5125(port)->txisr, in_be32(&FIFO_5125(port)->txisr)); in mpc5125_psc_tx_clr_irq()
853 static void mpc5125_psc_write_char(struct uart_port *port, unsigned char c) in mpc5125_psc_write_char() argument
855 out_8(&FIFO_5125(port)->txdata_8, c); in mpc5125_psc_write_char()
858 static unsigned char mpc5125_psc_read_char(struct uart_port *port) in mpc5125_psc_read_char() argument
860 return in_8(&FIFO_5125(port)->rxdata_8); in mpc5125_psc_read_char()
863 static void mpc5125_psc_cw_disable_ints(struct uart_port *port) in mpc5125_psc_cw_disable_ints() argument
865 port->read_status_mask = in mpc5125_psc_cw_disable_ints()
866 in_be32(&FIFO_5125(port)->tximr) << 16 | in mpc5125_psc_cw_disable_ints()
867 in_be32(&FIFO_5125(port)->rximr); in mpc5125_psc_cw_disable_ints()
868 out_be32(&FIFO_5125(port)->tximr, 0); in mpc5125_psc_cw_disable_ints()
869 out_be32(&FIFO_5125(port)->rximr, 0); in mpc5125_psc_cw_disable_ints()
872 static void mpc5125_psc_cw_restore_ints(struct uart_port *port) in mpc5125_psc_cw_restore_ints() argument
874 out_be32(&FIFO_5125(port)->tximr, in mpc5125_psc_cw_restore_ints()
875 (port->read_status_mask >> 16) & 0x7f); in mpc5125_psc_cw_restore_ints()
876 out_be32(&FIFO_5125(port)->rximr, port->read_status_mask & 0x7f); in mpc5125_psc_cw_restore_ints()
888 static unsigned int mpc5125_psc_set_baudrate(struct uart_port *port, in mpc5125_psc_set_baudrate() argument
900 baud = uart_get_baud_rate(port, new, old, in mpc5125_psc_set_baudrate()
901 port->uartclk / (16 * 0xffff) + 1, in mpc5125_psc_set_baudrate()
902 port->uartclk / 16); in mpc5125_psc_set_baudrate()
903 divisor = (port->uartclk + 8 * baud) / (16 * baud); in mpc5125_psc_set_baudrate()
906 mpc5125_set_divisor(PSC_5125(port), 0xdd, divisor); in mpc5125_psc_set_baudrate()
914 static u16 mpc5125_psc_get_status(struct uart_port *port) in mpc5125_psc_get_status() argument
916 return in_be16(&PSC_5125(port)->mpc52xx_psc_status); in mpc5125_psc_get_status()
919 static u8 mpc5125_psc_get_ipcr(struct uart_port *port) in mpc5125_psc_get_ipcr() argument
921 return in_8(&PSC_5125(port)->mpc52xx_psc_ipcr); in mpc5125_psc_get_ipcr()
924 static void mpc5125_psc_command(struct uart_port *port, u8 cmd) in mpc5125_psc_command() argument
926 out_8(&PSC_5125(port)->command, cmd); in mpc5125_psc_command()
929 static void mpc5125_psc_set_mode(struct uart_port *port, u8 mr1, u8 mr2) in mpc5125_psc_set_mode() argument
931 out_8(&PSC_5125(port)->mr1, mr1); in mpc5125_psc_set_mode()
932 out_8(&PSC_5125(port)->mr2, mr2); in mpc5125_psc_set_mode()
935 static void mpc5125_psc_set_rts(struct uart_port *port, int state) in mpc5125_psc_set_rts() argument
938 out_8(&PSC_5125(port)->op1, MPC52xx_PSC_OP_RTS); in mpc5125_psc_set_rts()
940 out_8(&PSC_5125(port)->op0, MPC52xx_PSC_OP_RTS); in mpc5125_psc_set_rts()
943 static void mpc5125_psc_enable_ms(struct uart_port *port) in mpc5125_psc_enable_ms() argument
945 struct mpc5125_psc __iomem *psc = PSC_5125(port); in mpc5125_psc_enable_ms()
952 port->read_status_mask |= MPC52xx_PSC_IMR_IPC; in mpc5125_psc_enable_ms()
953 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc5125_psc_enable_ms()
956 static void mpc5125_psc_set_sicr(struct uart_port *port, u32 val) in mpc5125_psc_set_sicr() argument
958 out_be32(&PSC_5125(port)->sicr, val); in mpc5125_psc_set_sicr()
961 static void mpc5125_psc_set_imr(struct uart_port *port, u16 val) in mpc5125_psc_set_imr() argument
963 out_be16(&PSC_5125(port)->mpc52xx_psc_imr, val); in mpc5125_psc_set_imr()
966 static u8 mpc5125_psc_get_mr1(struct uart_port *port) in mpc5125_psc_get_mr1() argument
968 return in_8(&PSC_5125(port)->mr1); in mpc5125_psc_get_mr1()
1050 mpc52xx_uart_tx_empty(struct uart_port *port) in mpc52xx_uart_tx_empty() argument
1052 return psc_ops->tx_empty(port) ? TIOCSER_TEMT : 0; in mpc52xx_uart_tx_empty()
1056 mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) in mpc52xx_uart_set_mctrl() argument
1058 psc_ops->set_rts(port, mctrl & TIOCM_RTS); in mpc52xx_uart_set_mctrl()
1062 mpc52xx_uart_get_mctrl(struct uart_port *port) in mpc52xx_uart_get_mctrl() argument
1065 u8 status = psc_ops->get_ipcr(port); in mpc52xx_uart_get_mctrl()
1076 mpc52xx_uart_stop_tx(struct uart_port *port) in mpc52xx_uart_stop_tx() argument
1079 psc_ops->stop_tx(port); in mpc52xx_uart_stop_tx()
1083 mpc52xx_uart_start_tx(struct uart_port *port) in mpc52xx_uart_start_tx() argument
1086 psc_ops->start_tx(port); in mpc52xx_uart_start_tx()
1090 mpc52xx_uart_stop_rx(struct uart_port *port) in mpc52xx_uart_stop_rx() argument
1093 psc_ops->stop_rx(port); in mpc52xx_uart_stop_rx()
1097 mpc52xx_uart_enable_ms(struct uart_port *port) in mpc52xx_uart_enable_ms() argument
1099 psc_ops->enable_ms(port); in mpc52xx_uart_enable_ms()
1103 mpc52xx_uart_break_ctl(struct uart_port *port, int ctl) in mpc52xx_uart_break_ctl() argument
1106 spin_lock_irqsave(&port->lock, flags); in mpc52xx_uart_break_ctl()
1109 psc_ops->command(port, MPC52xx_PSC_START_BRK); in mpc52xx_uart_break_ctl()
1111 psc_ops->command(port, MPC52xx_PSC_STOP_BRK); in mpc52xx_uart_break_ctl()
1113 spin_unlock_irqrestore(&port->lock, flags); in mpc52xx_uart_break_ctl()
1117 mpc52xx_uart_startup(struct uart_port *port) in mpc52xx_uart_startup() argument
1122 ret = psc_ops->clock(port, 1); in mpc52xx_uart_startup()
1128 ret = request_irq(port->irq, mpc52xx_uart_int, in mpc52xx_uart_startup()
1129 port->irqflags, "mpc52xx_psc_uart", port); in mpc52xx_uart_startup()
1134 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_startup()
1135 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_startup()
1137 psc_ops->set_sicr(port, 0); /* UART mode DCD ignored */ in mpc52xx_uart_startup()
1139 psc_ops->fifo_init(port); in mpc52xx_uart_startup()
1141 psc_ops->command(port, MPC52xx_PSC_TX_ENABLE); in mpc52xx_uart_startup()
1142 psc_ops->command(port, MPC52xx_PSC_RX_ENABLE); in mpc52xx_uart_startup()
1148 mpc52xx_uart_shutdown(struct uart_port *port) in mpc52xx_uart_shutdown() argument
1151 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_shutdown()
1152 if (!uart_console(port)) in mpc52xx_uart_shutdown()
1153 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_shutdown()
1155 port->read_status_mask = 0; in mpc52xx_uart_shutdown()
1156 psc_ops->set_imr(port, port->read_status_mask); in mpc52xx_uart_shutdown()
1159 psc_ops->clock(port, 0); in mpc52xx_uart_shutdown()
1162 psc_ops->cw_disable_ints(port); in mpc52xx_uart_shutdown()
1165 free_irq(port->irq, port); in mpc52xx_uart_shutdown()
1169 mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new, in mpc52xx_uart_set_termios() argument
1217 spin_lock_irqsave(&port->lock, flags); in mpc52xx_uart_set_termios()
1226 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_uart_set_termios()
1235 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_set_termios()
1236 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_set_termios()
1239 psc_ops->set_mode(port, mr1, mr2); in mpc52xx_uart_set_termios()
1240 baud = psc_ops->set_baudrate(port, new, old); in mpc52xx_uart_set_termios()
1243 uart_update_timeout(port, new->c_cflag, baud); in mpc52xx_uart_set_termios()
1245 if (UART_ENABLE_MS(port, new->c_cflag)) in mpc52xx_uart_set_termios()
1246 mpc52xx_uart_enable_ms(port); in mpc52xx_uart_set_termios()
1249 psc_ops->command(port, MPC52xx_PSC_TX_ENABLE); in mpc52xx_uart_set_termios()
1250 psc_ops->command(port, MPC52xx_PSC_RX_ENABLE); in mpc52xx_uart_set_termios()
1253 spin_unlock_irqrestore(&port->lock, flags); in mpc52xx_uart_set_termios()
1257 mpc52xx_uart_type(struct uart_port *port) in mpc52xx_uart_type() argument
1263 return port->type == PORT_MPC52xx ? "MPC5xxx PSC" : NULL; in mpc52xx_uart_type()
1267 mpc52xx_uart_release_port(struct uart_port *port) in mpc52xx_uart_release_port() argument
1270 psc_ops->clock_relse(port); in mpc52xx_uart_release_port()
1273 if (port->flags & UPF_IOREMAP) { in mpc52xx_uart_release_port()
1274 iounmap(port->membase); in mpc52xx_uart_release_port()
1275 port->membase = NULL; in mpc52xx_uart_release_port()
1278 release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); in mpc52xx_uart_release_port()
1282 mpc52xx_uart_request_port(struct uart_port *port) in mpc52xx_uart_request_port() argument
1286 if (port->flags & UPF_IOREMAP) /* Need to remap ? */ in mpc52xx_uart_request_port()
1287 port->membase = ioremap(port->mapbase, in mpc52xx_uart_request_port()
1290 if (!port->membase) in mpc52xx_uart_request_port()
1293 err = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc), in mpc52xx_uart_request_port()
1300 err = psc_ops->clock_alloc(port); in mpc52xx_uart_request_port()
1308 release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); in mpc52xx_uart_request_port()
1310 if (port->flags & UPF_IOREMAP) { in mpc52xx_uart_request_port()
1311 iounmap(port->membase); in mpc52xx_uart_request_port()
1312 port->membase = NULL; in mpc52xx_uart_request_port()
1318 mpc52xx_uart_config_port(struct uart_port *port, int flags) in mpc52xx_uart_config_port() argument
1321 && (mpc52xx_uart_request_port(port) == 0)) in mpc52xx_uart_config_port()
1322 port->type = PORT_MPC52xx; in mpc52xx_uart_config_port()
1326 mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) in mpc52xx_uart_verify_port() argument
1331 if ((ser->irq != port->irq) || in mpc52xx_uart_verify_port()
1333 (ser->baud_base != port->uartclk) || in mpc52xx_uart_verify_port()
1334 (ser->iomem_base != (void *)port->mapbase) || in mpc52xx_uart_verify_port()
1368 mpc52xx_uart_int_rx_chars(struct uart_port *port) in mpc52xx_uart_int_rx_chars() argument
1370 struct tty_port *tport = &port->state->port; in mpc52xx_uart_int_rx_chars()
1375 while (psc_ops->raw_rx_rdy(port)) { in mpc52xx_uart_int_rx_chars()
1377 ch = psc_ops->read_char(port); in mpc52xx_uart_int_rx_chars()
1381 if (uart_handle_sysrq_char(port, ch)) { in mpc52xx_uart_int_rx_chars()
1382 port->sysrq = 0; in mpc52xx_uart_int_rx_chars()
1390 port->icount.rx++; in mpc52xx_uart_int_rx_chars()
1392 status = psc_ops->get_status(port); in mpc52xx_uart_int_rx_chars()
1400 uart_handle_break(port); in mpc52xx_uart_int_rx_chars()
1401 port->icount.brk++; in mpc52xx_uart_int_rx_chars()
1404 port->icount.parity++; in mpc52xx_uart_int_rx_chars()
1408 port->icount.frame++; in mpc52xx_uart_int_rx_chars()
1412 psc_ops->command(port, MPC52xx_PSC_RST_ERR_STAT); in mpc52xx_uart_int_rx_chars()
1423 port->icount.overrun++; in mpc52xx_uart_int_rx_chars()
1427 spin_unlock(&port->lock); in mpc52xx_uart_int_rx_chars()
1429 spin_lock(&port->lock); in mpc52xx_uart_int_rx_chars()
1431 return psc_ops->raw_rx_rdy(port); in mpc52xx_uart_int_rx_chars()
1435 mpc52xx_uart_int_tx_chars(struct uart_port *port) in mpc52xx_uart_int_tx_chars() argument
1437 struct circ_buf *xmit = &port->state->xmit; in mpc52xx_uart_int_tx_chars()
1440 if (port->x_char) { in mpc52xx_uart_int_tx_chars()
1441 psc_ops->write_char(port, port->x_char); in mpc52xx_uart_int_tx_chars()
1442 port->icount.tx++; in mpc52xx_uart_int_tx_chars()
1443 port->x_char = 0; in mpc52xx_uart_int_tx_chars()
1448 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { in mpc52xx_uart_int_tx_chars()
1449 mpc52xx_uart_stop_tx(port); in mpc52xx_uart_int_tx_chars()
1454 while (psc_ops->raw_tx_rdy(port)) { in mpc52xx_uart_int_tx_chars()
1455 psc_ops->write_char(port, xmit->buf[xmit->tail]); in mpc52xx_uart_int_tx_chars()
1457 port->icount.tx++; in mpc52xx_uart_int_tx_chars()
1464 uart_write_wakeup(port); in mpc52xx_uart_int_tx_chars()
1468 mpc52xx_uart_stop_tx(port); in mpc52xx_uart_int_tx_chars()
1476 mpc5xxx_uart_process_int(struct uart_port *port) in mpc5xxx_uart_process_int() argument
1487 psc_ops->rx_clr_irq(port); in mpc5xxx_uart_process_int()
1488 if (psc_ops->rx_rdy(port)) in mpc5xxx_uart_process_int()
1489 keepgoing |= mpc52xx_uart_int_rx_chars(port); in mpc5xxx_uart_process_int()
1491 psc_ops->tx_clr_irq(port); in mpc5xxx_uart_process_int()
1492 if (psc_ops->tx_rdy(port)) in mpc5xxx_uart_process_int()
1493 keepgoing |= mpc52xx_uart_int_tx_chars(port); in mpc5xxx_uart_process_int()
1495 status = psc_ops->get_ipcr(port); in mpc5xxx_uart_process_int()
1497 uart_handle_dcd_change(port, !(status & MPC52xx_PSC_DCD)); in mpc5xxx_uart_process_int()
1500 uart_handle_cts_change(port, !(status & MPC52xx_PSC_CTS)); in mpc5xxx_uart_process_int()
1514 struct uart_port *port = dev_id; in mpc52xx_uart_int() local
1517 spin_lock(&port->lock); in mpc52xx_uart_int()
1519 ret = psc_ops->handle_irq(port); in mpc52xx_uart_int()
1521 spin_unlock(&port->lock); in mpc52xx_uart_int()
1533 mpc52xx_console_get_options(struct uart_port *port, in mpc52xx_console_get_options() argument
1538 pr_debug("mpc52xx_console_get_options(port=%p)\n", port); in mpc52xx_console_get_options()
1541 mr1 = psc_ops->get_mr1(port); in mpc52xx_console_get_options()
1571 struct uart_port *port = &mpc52xx_uart_ports[co->index]; in mpc52xx_console_write() local
1575 psc_ops->cw_disable_ints(port); in mpc52xx_console_write()
1579 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_console_write()
1586 psc_ops->write_char(port, '\r'); in mpc52xx_console_write()
1589 psc_ops->write_char(port, *s); in mpc52xx_console_write()
1593 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_console_write()
1598 psc_ops->cw_restore_ints(port); in mpc52xx_console_write()
1605 struct uart_port *port = &mpc52xx_uart_ports[co->index]; in mpc52xx_console_setup() local
1647 spin_lock_init(&port->lock); in mpc52xx_console_setup()
1648 port->uartclk = uartclk; in mpc52xx_console_setup()
1649 port->ops = &mpc52xx_uart_ops; in mpc52xx_console_setup()
1650 port->mapbase = res.start; in mpc52xx_console_setup()
1651 port->membase = ioremap(res.start, sizeof(struct mpc52xx_psc)); in mpc52xx_console_setup()
1652 port->irq = irq_of_parse_and_map(np, 0); in mpc52xx_console_setup()
1654 if (port->membase == NULL) in mpc52xx_console_setup()
1658 (void *)port->mapbase, port->membase, in mpc52xx_console_setup()
1659 port->irq, port->uartclk); in mpc52xx_console_setup()
1665 mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow); in mpc52xx_console_setup()
1670 return uart_set_options(port, co, baud, parity, bits, flow); in mpc52xx_console_setup()
1740 struct uart_port *port = NULL; in mpc52xx_uart_of_probe() local
1763 port = &mpc52xx_uart_ports[idx]; in mpc52xx_uart_of_probe()
1765 spin_lock_init(&port->lock); in mpc52xx_uart_of_probe()
1766 port->uartclk = uartclk; in mpc52xx_uart_of_probe()
1767 port->fifosize = 512; in mpc52xx_uart_of_probe()
1768 port->iotype = UPIO_MEM; in mpc52xx_uart_of_probe()
1769 port->flags = UPF_BOOT_AUTOCONF | in mpc52xx_uart_of_probe()
1770 (uart_console(port) ? 0 : UPF_IOREMAP); in mpc52xx_uart_of_probe()
1771 port->line = idx; in mpc52xx_uart_of_probe()
1772 port->ops = &mpc52xx_uart_ops; in mpc52xx_uart_of_probe()
1773 port->dev = &op->dev; in mpc52xx_uart_of_probe()
1780 port->mapbase = res.start; in mpc52xx_uart_of_probe()
1781 if (!port->mapbase) { in mpc52xx_uart_of_probe()
1786 psc_ops->get_irq(port, op->dev.of_node); in mpc52xx_uart_of_probe()
1787 if (port->irq == 0) { in mpc52xx_uart_of_probe()
1793 (void *)port->mapbase, port->irq, port->uartclk); in mpc52xx_uart_of_probe()
1796 ret = uart_add_one_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_probe()
1800 platform_set_drvdata(op, (void *)port); in mpc52xx_uart_of_probe()
1807 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_remove() local
1809 if (port) in mpc52xx_uart_of_remove()
1810 uart_remove_one_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_remove()
1819 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_suspend() local
1821 if (port) in mpc52xx_uart_of_suspend()
1822 uart_suspend_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_suspend()
1830 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_resume() local
1832 if (port) in mpc52xx_uart_of_resume()
1833 uart_resume_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_resume()