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 u16 sts = in_be16(&PSC(port)->mpc52xx_psc_status); in mpc52xx_psc_tx_empty()
247 static void mpc52xx_psc_start_tx(struct uart_port *port) in mpc52xx_psc_start_tx() argument
249 port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_start_tx()
250 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_start_tx()
253 static void mpc52xx_psc_stop_tx(struct uart_port *port) in mpc52xx_psc_stop_tx() argument
255 port->read_status_mask &= ~MPC52xx_PSC_IMR_TXRDY; in mpc52xx_psc_stop_tx()
256 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_stop_tx()
259 static void mpc52xx_psc_stop_rx(struct uart_port *port) in mpc52xx_psc_stop_rx() argument
261 port->read_status_mask &= ~MPC52xx_PSC_IMR_RXRDY; in mpc52xx_psc_stop_rx()
262 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_stop_rx()
265 static void mpc52xx_psc_rx_clr_irq(struct uart_port *port) in mpc52xx_psc_rx_clr_irq() argument
269 static void mpc52xx_psc_tx_clr_irq(struct uart_port *port) in mpc52xx_psc_tx_clr_irq() argument
273 static void mpc52xx_psc_write_char(struct uart_port *port, unsigned char c) in mpc52xx_psc_write_char() argument
275 out_8(&PSC(port)->mpc52xx_psc_buffer_8, c); in mpc52xx_psc_write_char()
278 static unsigned char mpc52xx_psc_read_char(struct uart_port *port) in mpc52xx_psc_read_char() argument
280 return in_8(&PSC(port)->mpc52xx_psc_buffer_8); in mpc52xx_psc_read_char()
283 static void mpc52xx_psc_cw_disable_ints(struct uart_port *port) in mpc52xx_psc_cw_disable_ints() argument
285 out_be16(&PSC(port)->mpc52xx_psc_imr, 0); in mpc52xx_psc_cw_disable_ints()
288 static void mpc52xx_psc_cw_restore_ints(struct uart_port *port) in mpc52xx_psc_cw_restore_ints() argument
290 out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); in mpc52xx_psc_cw_restore_ints()
293 static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port, in mpc5200_psc_set_baudrate() argument
301 baud = uart_get_baud_rate(port, new, old, in mpc5200_psc_set_baudrate()
302 port->uartclk / (32 * 0xffff) + 1, in mpc5200_psc_set_baudrate()
303 port->uartclk / 32); in mpc5200_psc_set_baudrate()
304 divisor = (port->uartclk + 16 * baud) / (32 * baud); in mpc5200_psc_set_baudrate()
307 mpc52xx_set_divisor(PSC(port), 0xdd00, divisor); in mpc5200_psc_set_baudrate()
311 static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port, in mpc5200b_psc_set_baudrate() argument
321 baud = uart_get_baud_rate(port, new, old, in mpc5200b_psc_set_baudrate()
322 port->uartclk / (32 * 0xffff) + 1, in mpc5200b_psc_set_baudrate()
323 port->uartclk / 4); in mpc5200b_psc_set_baudrate()
324 divisor = (port->uartclk + 2 * baud) / (4 * baud); in mpc5200b_psc_set_baudrate()
333 mpc52xx_set_divisor(PSC(port), prescaler, divisor); in mpc5200b_psc_set_baudrate()
337 static void mpc52xx_psc_get_irq(struct uart_port *port, struct device_node *np) in mpc52xx_psc_get_irq() argument
339 port->irqflags = 0; in mpc52xx_psc_get_irq()
340 port->irq = irq_of_parse_and_map(np, 0); in mpc52xx_psc_get_irq()
344 static irqreturn_t mpc52xx_psc_handle_irq(struct uart_port *port) in mpc52xx_psc_handle_irq() argument
346 return mpc5xxx_uart_process_int(port); in mpc52xx_psc_handle_irq()
412 #define FIFO_512x(port) ((struct mpc512x_psc_fifo __iomem *)(PSC(port)+1)) argument
427 static void mpc512x_psc_fifo_init(struct uart_port *port) in mpc512x_psc_fifo_init() argument
430 out_be16(&PSC(port)->mpc52xx_psc_clock_select, 0xdd00); in mpc512x_psc_fifo_init()
432 out_be32(&FIFO_512x(port)->txcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc512x_psc_fifo_init()
433 out_be32(&FIFO_512x(port)->txcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc512x_psc_fifo_init()
434 out_be32(&FIFO_512x(port)->txalarm, 1); in mpc512x_psc_fifo_init()
435 out_be32(&FIFO_512x(port)->tximr, 0); in mpc512x_psc_fifo_init()
437 out_be32(&FIFO_512x(port)->rxcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc512x_psc_fifo_init()
438 out_be32(&FIFO_512x(port)->rxcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc512x_psc_fifo_init()
439 out_be32(&FIFO_512x(port)->rxalarm, 1); in mpc512x_psc_fifo_init()
440 out_be32(&FIFO_512x(port)->rximr, 0); in mpc512x_psc_fifo_init()
442 out_be32(&FIFO_512x(port)->tximr, MPC512x_PSC_FIFO_ALARM); in mpc512x_psc_fifo_init()
443 out_be32(&FIFO_512x(port)->rximr, MPC512x_PSC_FIFO_ALARM); in mpc512x_psc_fifo_init()
446 static int mpc512x_psc_raw_rx_rdy(struct uart_port *port) in mpc512x_psc_raw_rx_rdy() argument
448 return !(in_be32(&FIFO_512x(port)->rxsr) & MPC512x_PSC_FIFO_EMPTY); in mpc512x_psc_raw_rx_rdy()
451 static int mpc512x_psc_raw_tx_rdy(struct uart_port *port) in mpc512x_psc_raw_tx_rdy() argument
453 return !(in_be32(&FIFO_512x(port)->txsr) & MPC512x_PSC_FIFO_FULL); in mpc512x_psc_raw_tx_rdy()
456 static int mpc512x_psc_rx_rdy(struct uart_port *port) in mpc512x_psc_rx_rdy() argument
458 return in_be32(&FIFO_512x(port)->rxsr) in mpc512x_psc_rx_rdy()
459 & in_be32(&FIFO_512x(port)->rximr) in mpc512x_psc_rx_rdy()
463 static int mpc512x_psc_tx_rdy(struct uart_port *port) in mpc512x_psc_tx_rdy() argument
465 return in_be32(&FIFO_512x(port)->txsr) in mpc512x_psc_tx_rdy()
466 & in_be32(&FIFO_512x(port)->tximr) in mpc512x_psc_tx_rdy()
470 static int mpc512x_psc_tx_empty(struct uart_port *port) in mpc512x_psc_tx_empty() argument
472 return in_be32(&FIFO_512x(port)->txsr) in mpc512x_psc_tx_empty()
476 static void mpc512x_psc_stop_rx(struct uart_port *port) in mpc512x_psc_stop_rx() argument
480 rx_fifo_imr = in_be32(&FIFO_512x(port)->rximr); in mpc512x_psc_stop_rx()
482 out_be32(&FIFO_512x(port)->rximr, rx_fifo_imr); in mpc512x_psc_stop_rx()
485 static void mpc512x_psc_start_tx(struct uart_port *port) in mpc512x_psc_start_tx() argument
489 tx_fifo_imr = in_be32(&FIFO_512x(port)->tximr); in mpc512x_psc_start_tx()
491 out_be32(&FIFO_512x(port)->tximr, tx_fifo_imr); in mpc512x_psc_start_tx()
494 static void mpc512x_psc_stop_tx(struct uart_port *port) in mpc512x_psc_stop_tx() argument
498 tx_fifo_imr = in_be32(&FIFO_512x(port)->tximr); in mpc512x_psc_stop_tx()
500 out_be32(&FIFO_512x(port)->tximr, tx_fifo_imr); in mpc512x_psc_stop_tx()
503 static void mpc512x_psc_rx_clr_irq(struct uart_port *port) in mpc512x_psc_rx_clr_irq() argument
505 out_be32(&FIFO_512x(port)->rxisr, in_be32(&FIFO_512x(port)->rxisr)); in mpc512x_psc_rx_clr_irq()
508 static void mpc512x_psc_tx_clr_irq(struct uart_port *port) in mpc512x_psc_tx_clr_irq() argument
510 out_be32(&FIFO_512x(port)->txisr, in_be32(&FIFO_512x(port)->txisr)); in mpc512x_psc_tx_clr_irq()
513 static void mpc512x_psc_write_char(struct uart_port *port, unsigned char c) in mpc512x_psc_write_char() argument
515 out_8(&FIFO_512x(port)->txdata_8, c); in mpc512x_psc_write_char()
518 static unsigned char mpc512x_psc_read_char(struct uart_port *port) in mpc512x_psc_read_char() argument
520 return in_8(&FIFO_512x(port)->rxdata_8); in mpc512x_psc_read_char()
523 static void mpc512x_psc_cw_disable_ints(struct uart_port *port) in mpc512x_psc_cw_disable_ints() argument
525 port->read_status_mask = in mpc512x_psc_cw_disable_ints()
526 in_be32(&FIFO_512x(port)->tximr) << 16 | in mpc512x_psc_cw_disable_ints()
527 in_be32(&FIFO_512x(port)->rximr); in mpc512x_psc_cw_disable_ints()
528 out_be32(&FIFO_512x(port)->tximr, 0); in mpc512x_psc_cw_disable_ints()
529 out_be32(&FIFO_512x(port)->rximr, 0); in mpc512x_psc_cw_disable_ints()
532 static void mpc512x_psc_cw_restore_ints(struct uart_port *port) in mpc512x_psc_cw_restore_ints() argument
534 out_be32(&FIFO_512x(port)->tximr, in mpc512x_psc_cw_restore_ints()
535 (port->read_status_mask >> 16) & 0x7f); in mpc512x_psc_cw_restore_ints()
536 out_be32(&FIFO_512x(port)->rximr, port->read_status_mask & 0x7f); in mpc512x_psc_cw_restore_ints()
539 static unsigned int mpc512x_psc_set_baudrate(struct uart_port *port, in mpc512x_psc_set_baudrate() argument
560 baud = uart_get_baud_rate(port, new, old, in mpc512x_psc_set_baudrate()
561 port->uartclk / (16 * 0xffff) + 1, in mpc512x_psc_set_baudrate()
562 port->uartclk / 16); in mpc512x_psc_set_baudrate()
563 divisor = (port->uartclk + 8 * baud) / (16 * baud); in mpc512x_psc_set_baudrate()
566 mpc52xx_set_divisor(PSC(port), 0xdd00, divisor); in mpc512x_psc_set_baudrate()
643 static irqreturn_t mpc512x_psc_handle_irq(struct uart_port *port) in mpc512x_psc_handle_irq() argument
652 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_handle_irq()
655 return mpc5xxx_uart_process_int(port); in mpc512x_psc_handle_irq()
664 static int mpc512x_psc_alloc_clock(struct uart_port *port) in mpc512x_psc_alloc_clock() argument
670 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_alloc_clock()
672 clk = devm_clk_get(port->dev, "mclk"); in mpc512x_psc_alloc_clock()
674 dev_err(port->dev, "Failed to get MCLK!\n"); in mpc512x_psc_alloc_clock()
680 dev_err(port->dev, "Failed to enable MCLK!\n"); in mpc512x_psc_alloc_clock()
685 clk = devm_clk_get(port->dev, "ipg"); in mpc512x_psc_alloc_clock()
687 dev_err(port->dev, "Failed to get IPG clock!\n"); in mpc512x_psc_alloc_clock()
693 dev_err(port->dev, "Failed to enable IPG clock!\n"); in mpc512x_psc_alloc_clock()
713 static void mpc512x_psc_relse_clock(struct uart_port *port) in mpc512x_psc_relse_clock() argument
718 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_relse_clock()
731 static int mpc512x_psc_endis_clock(struct uart_port *port, int enable) in mpc512x_psc_endis_clock() argument
737 if (uart_console(port)) in mpc512x_psc_endis_clock()
740 psc_num = (port->mapbase & 0xf00) >> 8; in mpc512x_psc_endis_clock()
743 dev_err(port->dev, "Failed to get PSC clock entry!\n"); in mpc512x_psc_endis_clock()
747 dev_dbg(port->dev, "mclk %sable\n", enable ? "en" : "dis"); in mpc512x_psc_endis_clock()
751 dev_err(port->dev, "Failed to enable MCLK!\n"); in mpc512x_psc_endis_clock()
759 static void mpc512x_psc_get_irq(struct uart_port *port, struct device_node *np) in mpc512x_psc_get_irq() argument
761 port->irqflags = IRQF_SHARED; in mpc512x_psc_get_irq()
762 port->irq = psc_fifoc_irq; in mpc512x_psc_get_irq()
768 #define PSC_5125(port) ((struct mpc5125_psc __iomem *)((port)->membase)) argument
769 #define FIFO_5125(port) ((struct mpc512x_psc_fifo __iomem *)(PSC_5125(port)+1)) argument
771 static void mpc5125_psc_fifo_init(struct uart_port *port) in mpc5125_psc_fifo_init() argument
774 out_8(&PSC_5125(port)->mpc52xx_psc_clock_select, 0xdd); in mpc5125_psc_fifo_init()
776 out_be32(&FIFO_5125(port)->txcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc5125_psc_fifo_init()
777 out_be32(&FIFO_5125(port)->txcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc5125_psc_fifo_init()
778 out_be32(&FIFO_5125(port)->txalarm, 1); in mpc5125_psc_fifo_init()
779 out_be32(&FIFO_5125(port)->tximr, 0); in mpc5125_psc_fifo_init()
781 out_be32(&FIFO_5125(port)->rxcmd, MPC512x_PSC_FIFO_RESET_SLICE); in mpc5125_psc_fifo_init()
782 out_be32(&FIFO_5125(port)->rxcmd, MPC512x_PSC_FIFO_ENABLE_SLICE); in mpc5125_psc_fifo_init()
783 out_be32(&FIFO_5125(port)->rxalarm, 1); in mpc5125_psc_fifo_init()
784 out_be32(&FIFO_5125(port)->rximr, 0); in mpc5125_psc_fifo_init()
786 out_be32(&FIFO_5125(port)->tximr, MPC512x_PSC_FIFO_ALARM); in mpc5125_psc_fifo_init()
787 out_be32(&FIFO_5125(port)->rximr, MPC512x_PSC_FIFO_ALARM); in mpc5125_psc_fifo_init()
790 static int mpc5125_psc_raw_rx_rdy(struct uart_port *port) in mpc5125_psc_raw_rx_rdy() argument
792 return !(in_be32(&FIFO_5125(port)->rxsr) & MPC512x_PSC_FIFO_EMPTY); in mpc5125_psc_raw_rx_rdy()
795 static int mpc5125_psc_raw_tx_rdy(struct uart_port *port) in mpc5125_psc_raw_tx_rdy() argument
797 return !(in_be32(&FIFO_5125(port)->txsr) & MPC512x_PSC_FIFO_FULL); in mpc5125_psc_raw_tx_rdy()
800 static int mpc5125_psc_rx_rdy(struct uart_port *port) in mpc5125_psc_rx_rdy() argument
802 return in_be32(&FIFO_5125(port)->rxsr) & in mpc5125_psc_rx_rdy()
803 in_be32(&FIFO_5125(port)->rximr) & MPC512x_PSC_FIFO_ALARM; in mpc5125_psc_rx_rdy()
806 static int mpc5125_psc_tx_rdy(struct uart_port *port) in mpc5125_psc_tx_rdy() argument
808 return in_be32(&FIFO_5125(port)->txsr) & in mpc5125_psc_tx_rdy()
809 in_be32(&FIFO_5125(port)->tximr) & MPC512x_PSC_FIFO_ALARM; in mpc5125_psc_tx_rdy()
812 static int mpc5125_psc_tx_empty(struct uart_port *port) in mpc5125_psc_tx_empty() argument
814 return in_be32(&FIFO_5125(port)->txsr) & MPC512x_PSC_FIFO_EMPTY; in mpc5125_psc_tx_empty()
817 static void mpc5125_psc_stop_rx(struct uart_port *port) in mpc5125_psc_stop_rx() argument
821 rx_fifo_imr = in_be32(&FIFO_5125(port)->rximr); in mpc5125_psc_stop_rx()
823 out_be32(&FIFO_5125(port)->rximr, rx_fifo_imr); in mpc5125_psc_stop_rx()
826 static void mpc5125_psc_start_tx(struct uart_port *port) in mpc5125_psc_start_tx() argument
830 tx_fifo_imr = in_be32(&FIFO_5125(port)->tximr); in mpc5125_psc_start_tx()
832 out_be32(&FIFO_5125(port)->tximr, tx_fifo_imr); in mpc5125_psc_start_tx()
835 static void mpc5125_psc_stop_tx(struct uart_port *port) in mpc5125_psc_stop_tx() argument
839 tx_fifo_imr = in_be32(&FIFO_5125(port)->tximr); in mpc5125_psc_stop_tx()
841 out_be32(&FIFO_5125(port)->tximr, tx_fifo_imr); in mpc5125_psc_stop_tx()
844 static void mpc5125_psc_rx_clr_irq(struct uart_port *port) in mpc5125_psc_rx_clr_irq() argument
846 out_be32(&FIFO_5125(port)->rxisr, in_be32(&FIFO_5125(port)->rxisr)); in mpc5125_psc_rx_clr_irq()
849 static void mpc5125_psc_tx_clr_irq(struct uart_port *port) in mpc5125_psc_tx_clr_irq() argument
851 out_be32(&FIFO_5125(port)->txisr, in_be32(&FIFO_5125(port)->txisr)); in mpc5125_psc_tx_clr_irq()
854 static void mpc5125_psc_write_char(struct uart_port *port, unsigned char c) in mpc5125_psc_write_char() argument
856 out_8(&FIFO_5125(port)->txdata_8, c); in mpc5125_psc_write_char()
859 static unsigned char mpc5125_psc_read_char(struct uart_port *port) in mpc5125_psc_read_char() argument
861 return in_8(&FIFO_5125(port)->rxdata_8); in mpc5125_psc_read_char()
864 static void mpc5125_psc_cw_disable_ints(struct uart_port *port) in mpc5125_psc_cw_disable_ints() argument
866 port->read_status_mask = in mpc5125_psc_cw_disable_ints()
867 in_be32(&FIFO_5125(port)->tximr) << 16 | in mpc5125_psc_cw_disable_ints()
868 in_be32(&FIFO_5125(port)->rximr); in mpc5125_psc_cw_disable_ints()
869 out_be32(&FIFO_5125(port)->tximr, 0); in mpc5125_psc_cw_disable_ints()
870 out_be32(&FIFO_5125(port)->rximr, 0); in mpc5125_psc_cw_disable_ints()
873 static void mpc5125_psc_cw_restore_ints(struct uart_port *port) in mpc5125_psc_cw_restore_ints() argument
875 out_be32(&FIFO_5125(port)->tximr, in mpc5125_psc_cw_restore_ints()
876 (port->read_status_mask >> 16) & 0x7f); in mpc5125_psc_cw_restore_ints()
877 out_be32(&FIFO_5125(port)->rximr, port->read_status_mask & 0x7f); in mpc5125_psc_cw_restore_ints()
889 static unsigned int mpc5125_psc_set_baudrate(struct uart_port *port, in mpc5125_psc_set_baudrate() argument
901 baud = uart_get_baud_rate(port, new, old, in mpc5125_psc_set_baudrate()
902 port->uartclk / (16 * 0xffff) + 1, in mpc5125_psc_set_baudrate()
903 port->uartclk / 16); in mpc5125_psc_set_baudrate()
904 divisor = (port->uartclk + 8 * baud) / (16 * baud); in mpc5125_psc_set_baudrate()
907 mpc5125_set_divisor(PSC_5125(port), 0xdd, divisor); in mpc5125_psc_set_baudrate()
915 static u16 mpc5125_psc_get_status(struct uart_port *port) in mpc5125_psc_get_status() argument
917 return in_be16(&PSC_5125(port)->mpc52xx_psc_status); in mpc5125_psc_get_status()
920 static u8 mpc5125_psc_get_ipcr(struct uart_port *port) in mpc5125_psc_get_ipcr() argument
922 return in_8(&PSC_5125(port)->mpc52xx_psc_ipcr); in mpc5125_psc_get_ipcr()
925 static void mpc5125_psc_command(struct uart_port *port, u8 cmd) in mpc5125_psc_command() argument
927 out_8(&PSC_5125(port)->command, cmd); in mpc5125_psc_command()
930 static void mpc5125_psc_set_mode(struct uart_port *port, u8 mr1, u8 mr2) in mpc5125_psc_set_mode() argument
932 out_8(&PSC_5125(port)->mr1, mr1); in mpc5125_psc_set_mode()
933 out_8(&PSC_5125(port)->mr2, mr2); in mpc5125_psc_set_mode()
936 static void mpc5125_psc_set_rts(struct uart_port *port, int state) in mpc5125_psc_set_rts() argument
939 out_8(&PSC_5125(port)->op1, MPC52xx_PSC_OP_RTS); in mpc5125_psc_set_rts()
941 out_8(&PSC_5125(port)->op0, MPC52xx_PSC_OP_RTS); in mpc5125_psc_set_rts()
944 static void mpc5125_psc_enable_ms(struct uart_port *port) in mpc5125_psc_enable_ms() argument
946 struct mpc5125_psc __iomem *psc = PSC_5125(port); in mpc5125_psc_enable_ms()
953 port->read_status_mask |= MPC52xx_PSC_IMR_IPC; in mpc5125_psc_enable_ms()
954 out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); in mpc5125_psc_enable_ms()
957 static void mpc5125_psc_set_sicr(struct uart_port *port, u32 val) in mpc5125_psc_set_sicr() argument
959 out_be32(&PSC_5125(port)->sicr, val); in mpc5125_psc_set_sicr()
962 static void mpc5125_psc_set_imr(struct uart_port *port, u16 val) in mpc5125_psc_set_imr() argument
964 out_be16(&PSC_5125(port)->mpc52xx_psc_imr, val); in mpc5125_psc_set_imr()
967 static u8 mpc5125_psc_get_mr1(struct uart_port *port) in mpc5125_psc_get_mr1() argument
969 return in_8(&PSC_5125(port)->mr1); in mpc5125_psc_get_mr1()
1051 mpc52xx_uart_tx_empty(struct uart_port *port) in mpc52xx_uart_tx_empty() argument
1053 return psc_ops->tx_empty(port) ? TIOCSER_TEMT : 0; in mpc52xx_uart_tx_empty()
1057 mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) in mpc52xx_uart_set_mctrl() argument
1059 psc_ops->set_rts(port, mctrl & TIOCM_RTS); in mpc52xx_uart_set_mctrl()
1063 mpc52xx_uart_get_mctrl(struct uart_port *port) in mpc52xx_uart_get_mctrl() argument
1066 u8 status = psc_ops->get_ipcr(port); in mpc52xx_uart_get_mctrl()
1077 mpc52xx_uart_stop_tx(struct uart_port *port) in mpc52xx_uart_stop_tx() argument
1080 psc_ops->stop_tx(port); in mpc52xx_uart_stop_tx()
1084 mpc52xx_uart_start_tx(struct uart_port *port) in mpc52xx_uart_start_tx() argument
1087 psc_ops->start_tx(port); in mpc52xx_uart_start_tx()
1091 mpc52xx_uart_stop_rx(struct uart_port *port) in mpc52xx_uart_stop_rx() argument
1094 psc_ops->stop_rx(port); in mpc52xx_uart_stop_rx()
1098 mpc52xx_uart_enable_ms(struct uart_port *port) in mpc52xx_uart_enable_ms() argument
1100 psc_ops->enable_ms(port); in mpc52xx_uart_enable_ms()
1104 mpc52xx_uart_break_ctl(struct uart_port *port, int ctl) in mpc52xx_uart_break_ctl() argument
1107 spin_lock_irqsave(&port->lock, flags); in mpc52xx_uart_break_ctl()
1110 psc_ops->command(port, MPC52xx_PSC_START_BRK); in mpc52xx_uart_break_ctl()
1112 psc_ops->command(port, MPC52xx_PSC_STOP_BRK); in mpc52xx_uart_break_ctl()
1114 spin_unlock_irqrestore(&port->lock, flags); in mpc52xx_uart_break_ctl()
1118 mpc52xx_uart_startup(struct uart_port *port) in mpc52xx_uart_startup() argument
1123 ret = psc_ops->clock(port, 1); in mpc52xx_uart_startup()
1129 ret = request_irq(port->irq, mpc52xx_uart_int, in mpc52xx_uart_startup()
1130 port->irqflags, "mpc52xx_psc_uart", port); in mpc52xx_uart_startup()
1135 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_startup()
1136 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_startup()
1145 psc_ops->set_sicr(port, 0); /* UART mode DCD ignored */ in mpc52xx_uart_startup()
1147 psc_ops->fifo_init(port); in mpc52xx_uart_startup()
1149 psc_ops->command(port, MPC52xx_PSC_TX_ENABLE); in mpc52xx_uart_startup()
1150 psc_ops->command(port, MPC52xx_PSC_RX_ENABLE); in mpc52xx_uart_startup()
1156 mpc52xx_uart_shutdown(struct uart_port *port) in mpc52xx_uart_shutdown() argument
1159 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_shutdown()
1160 if (!uart_console(port)) in mpc52xx_uart_shutdown()
1161 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_shutdown()
1163 port->read_status_mask = 0; in mpc52xx_uart_shutdown()
1164 psc_ops->set_imr(port, port->read_status_mask); in mpc52xx_uart_shutdown()
1167 psc_ops->clock(port, 0); in mpc52xx_uart_shutdown()
1170 psc_ops->cw_disable_ints(port); in mpc52xx_uart_shutdown()
1173 free_irq(port->irq, port); in mpc52xx_uart_shutdown()
1177 mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new, in mpc52xx_uart_set_termios() argument
1225 spin_lock_irqsave(&port->lock, flags); in mpc52xx_uart_set_termios()
1234 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_uart_set_termios()
1243 psc_ops->command(port, MPC52xx_PSC_RST_RX); in mpc52xx_uart_set_termios()
1244 psc_ops->command(port, MPC52xx_PSC_RST_TX); in mpc52xx_uart_set_termios()
1247 psc_ops->set_mode(port, mr1, mr2); in mpc52xx_uart_set_termios()
1248 baud = psc_ops->set_baudrate(port, new, old); in mpc52xx_uart_set_termios()
1251 uart_update_timeout(port, new->c_cflag, baud); in mpc52xx_uart_set_termios()
1253 if (UART_ENABLE_MS(port, new->c_cflag)) in mpc52xx_uart_set_termios()
1254 mpc52xx_uart_enable_ms(port); in mpc52xx_uart_set_termios()
1257 psc_ops->command(port, MPC52xx_PSC_TX_ENABLE); in mpc52xx_uart_set_termios()
1258 psc_ops->command(port, MPC52xx_PSC_RX_ENABLE); in mpc52xx_uart_set_termios()
1261 spin_unlock_irqrestore(&port->lock, flags); in mpc52xx_uart_set_termios()
1265 mpc52xx_uart_type(struct uart_port *port) in mpc52xx_uart_type() argument
1271 return port->type == PORT_MPC52xx ? "MPC5xxx PSC" : NULL; in mpc52xx_uart_type()
1275 mpc52xx_uart_release_port(struct uart_port *port) in mpc52xx_uart_release_port() argument
1278 psc_ops->clock_relse(port); in mpc52xx_uart_release_port()
1281 if (port->flags & UPF_IOREMAP) { in mpc52xx_uart_release_port()
1282 iounmap(port->membase); in mpc52xx_uart_release_port()
1283 port->membase = NULL; in mpc52xx_uart_release_port()
1286 release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); in mpc52xx_uart_release_port()
1290 mpc52xx_uart_request_port(struct uart_port *port) in mpc52xx_uart_request_port() argument
1294 if (port->flags & UPF_IOREMAP) /* Need to remap ? */ in mpc52xx_uart_request_port()
1295 port->membase = ioremap(port->mapbase, in mpc52xx_uart_request_port()
1298 if (!port->membase) in mpc52xx_uart_request_port()
1301 err = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc), in mpc52xx_uart_request_port()
1308 err = psc_ops->clock_alloc(port); in mpc52xx_uart_request_port()
1316 release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); in mpc52xx_uart_request_port()
1318 if (port->flags & UPF_IOREMAP) { in mpc52xx_uart_request_port()
1319 iounmap(port->membase); in mpc52xx_uart_request_port()
1320 port->membase = NULL; in mpc52xx_uart_request_port()
1326 mpc52xx_uart_config_port(struct uart_port *port, int flags) in mpc52xx_uart_config_port() argument
1329 && (mpc52xx_uart_request_port(port) == 0)) in mpc52xx_uart_config_port()
1330 port->type = PORT_MPC52xx; in mpc52xx_uart_config_port()
1334 mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) in mpc52xx_uart_verify_port() argument
1339 if ((ser->irq != port->irq) || in mpc52xx_uart_verify_port()
1341 (ser->baud_base != port->uartclk) || in mpc52xx_uart_verify_port()
1342 (ser->iomem_base != (void *)port->mapbase) || in mpc52xx_uart_verify_port()
1376 mpc52xx_uart_int_rx_chars(struct uart_port *port) in mpc52xx_uart_int_rx_chars() argument
1378 struct tty_port *tport = &port->state->port; in mpc52xx_uart_int_rx_chars()
1383 while (psc_ops->raw_rx_rdy(port)) { in mpc52xx_uart_int_rx_chars()
1385 ch = psc_ops->read_char(port); in mpc52xx_uart_int_rx_chars()
1389 if (uart_handle_sysrq_char(port, ch)) { in mpc52xx_uart_int_rx_chars()
1390 port->sysrq = 0; in mpc52xx_uart_int_rx_chars()
1398 port->icount.rx++; in mpc52xx_uart_int_rx_chars()
1400 status = psc_ops->get_status(port); in mpc52xx_uart_int_rx_chars()
1408 uart_handle_break(port); in mpc52xx_uart_int_rx_chars()
1409 port->icount.brk++; in mpc52xx_uart_int_rx_chars()
1412 port->icount.parity++; in mpc52xx_uart_int_rx_chars()
1416 port->icount.frame++; in mpc52xx_uart_int_rx_chars()
1420 psc_ops->command(port, MPC52xx_PSC_RST_ERR_STAT); in mpc52xx_uart_int_rx_chars()
1431 port->icount.overrun++; in mpc52xx_uart_int_rx_chars()
1435 spin_unlock(&port->lock); in mpc52xx_uart_int_rx_chars()
1437 spin_lock(&port->lock); in mpc52xx_uart_int_rx_chars()
1439 return psc_ops->raw_rx_rdy(port); in mpc52xx_uart_int_rx_chars()
1443 mpc52xx_uart_int_tx_chars(struct uart_port *port) in mpc52xx_uart_int_tx_chars() argument
1445 struct circ_buf *xmit = &port->state->xmit; in mpc52xx_uart_int_tx_chars()
1448 if (port->x_char) { in mpc52xx_uart_int_tx_chars()
1449 psc_ops->write_char(port, port->x_char); in mpc52xx_uart_int_tx_chars()
1450 port->icount.tx++; in mpc52xx_uart_int_tx_chars()
1451 port->x_char = 0; in mpc52xx_uart_int_tx_chars()
1456 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { in mpc52xx_uart_int_tx_chars()
1457 mpc52xx_uart_stop_tx(port); in mpc52xx_uart_int_tx_chars()
1462 while (psc_ops->raw_tx_rdy(port)) { in mpc52xx_uart_int_tx_chars()
1463 psc_ops->write_char(port, xmit->buf[xmit->tail]); in mpc52xx_uart_int_tx_chars()
1465 port->icount.tx++; in mpc52xx_uart_int_tx_chars()
1472 uart_write_wakeup(port); in mpc52xx_uart_int_tx_chars()
1476 mpc52xx_uart_stop_tx(port); in mpc52xx_uart_int_tx_chars()
1484 mpc5xxx_uart_process_int(struct uart_port *port) in mpc5xxx_uart_process_int() argument
1495 psc_ops->rx_clr_irq(port); in mpc5xxx_uart_process_int()
1496 if (psc_ops->rx_rdy(port)) in mpc5xxx_uart_process_int()
1497 keepgoing |= mpc52xx_uart_int_rx_chars(port); in mpc5xxx_uart_process_int()
1499 psc_ops->tx_clr_irq(port); in mpc5xxx_uart_process_int()
1500 if (psc_ops->tx_rdy(port)) in mpc5xxx_uart_process_int()
1501 keepgoing |= mpc52xx_uart_int_tx_chars(port); in mpc5xxx_uart_process_int()
1503 status = psc_ops->get_ipcr(port); in mpc5xxx_uart_process_int()
1505 uart_handle_dcd_change(port, !(status & MPC52xx_PSC_DCD)); in mpc5xxx_uart_process_int()
1508 uart_handle_cts_change(port, !(status & MPC52xx_PSC_CTS)); in mpc5xxx_uart_process_int()
1522 struct uart_port *port = dev_id; in mpc52xx_uart_int() local
1525 spin_lock(&port->lock); in mpc52xx_uart_int()
1527 ret = psc_ops->handle_irq(port); in mpc52xx_uart_int()
1529 spin_unlock(&port->lock); in mpc52xx_uart_int()
1541 mpc52xx_console_get_options(struct uart_port *port, in mpc52xx_console_get_options() argument
1546 pr_debug("mpc52xx_console_get_options(port=%p)\n", port); in mpc52xx_console_get_options()
1549 mr1 = psc_ops->get_mr1(port); in mpc52xx_console_get_options()
1579 struct uart_port *port = &mpc52xx_uart_ports[co->index]; in mpc52xx_console_write() local
1583 psc_ops->cw_disable_ints(port); in mpc52xx_console_write()
1587 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_console_write()
1594 psc_ops->write_char(port, '\r'); in mpc52xx_console_write()
1597 psc_ops->write_char(port, *s); in mpc52xx_console_write()
1601 while (!mpc52xx_uart_tx_empty(port) && --j) in mpc52xx_console_write()
1606 psc_ops->cw_restore_ints(port); in mpc52xx_console_write()
1613 struct uart_port *port = &mpc52xx_uart_ports[co->index]; in mpc52xx_console_setup() local
1655 spin_lock_init(&port->lock); in mpc52xx_console_setup()
1656 port->uartclk = uartclk; in mpc52xx_console_setup()
1657 port->ops = &mpc52xx_uart_ops; in mpc52xx_console_setup()
1658 port->mapbase = res.start; in mpc52xx_console_setup()
1659 port->membase = ioremap(res.start, sizeof(struct mpc52xx_psc)); in mpc52xx_console_setup()
1660 port->irq = irq_of_parse_and_map(np, 0); in mpc52xx_console_setup()
1662 if (port->membase == NULL) in mpc52xx_console_setup()
1666 (void *)port->mapbase, port->membase, in mpc52xx_console_setup()
1667 port->irq, port->uartclk); in mpc52xx_console_setup()
1673 mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow); in mpc52xx_console_setup()
1678 return uart_set_options(port, co, baud, parity, bits, flow); in mpc52xx_console_setup()
1748 struct uart_port *port = NULL; in mpc52xx_uart_of_probe() local
1771 port = &mpc52xx_uart_ports[idx]; in mpc52xx_uart_of_probe()
1773 spin_lock_init(&port->lock); in mpc52xx_uart_of_probe()
1774 port->uartclk = uartclk; in mpc52xx_uart_of_probe()
1775 port->fifosize = 512; in mpc52xx_uart_of_probe()
1776 port->iotype = UPIO_MEM; in mpc52xx_uart_of_probe()
1777 port->flags = UPF_BOOT_AUTOCONF | in mpc52xx_uart_of_probe()
1778 (uart_console(port) ? 0 : UPF_IOREMAP); in mpc52xx_uart_of_probe()
1779 port->line = idx; in mpc52xx_uart_of_probe()
1780 port->ops = &mpc52xx_uart_ops; in mpc52xx_uart_of_probe()
1781 port->dev = &op->dev; in mpc52xx_uart_of_probe()
1788 port->mapbase = res.start; in mpc52xx_uart_of_probe()
1789 if (!port->mapbase) { in mpc52xx_uart_of_probe()
1794 psc_ops->get_irq(port, op->dev.of_node); in mpc52xx_uart_of_probe()
1795 if (port->irq == 0) { in mpc52xx_uart_of_probe()
1801 (void *)port->mapbase, port->irq, port->uartclk); in mpc52xx_uart_of_probe()
1804 ret = uart_add_one_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_probe()
1808 platform_set_drvdata(op, (void *)port); in mpc52xx_uart_of_probe()
1815 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_remove() local
1817 if (port) in mpc52xx_uart_of_remove()
1818 uart_remove_one_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_remove()
1827 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_suspend() local
1829 if (port) in mpc52xx_uart_of_suspend()
1830 uart_suspend_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_suspend()
1838 struct uart_port *port = platform_get_drvdata(op); in mpc52xx_uart_of_resume() local
1840 if (port) in mpc52xx_uart_of_resume()
1841 uart_resume_port(&mpc52xx_uart_driver, port); in mpc52xx_uart_of_resume()