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path: root/drivers/serial/8250.c
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Diffstat (limited to 'drivers/serial/8250.c')
-rw-r--r--drivers/serial/8250.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 891e1dd65f24..09ef57034c9c 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -302,7 +302,7 @@ static const struct serial8250_config uart_config[] = {
302 }, 302 },
303}; 303};
304 304
305#if defined (CONFIG_SERIAL_8250_AU1X00) 305#if defined(CONFIG_MIPS_ALCHEMY)
306 306
307/* Au1x00 UART hardware has a weird register layout */ 307/* Au1x00 UART hardware has a weird register layout */
308static const u8 au_io_in_map[] = { 308static const u8 au_io_in_map[] = {
@@ -422,7 +422,6 @@ static unsigned int mem32_serial_in(struct uart_port *p, int offset)
422 return readl(p->membase + offset); 422 return readl(p->membase + offset);
423} 423}
424 424
425#ifdef CONFIG_SERIAL_8250_AU1X00
426static unsigned int au_serial_in(struct uart_port *p, int offset) 425static unsigned int au_serial_in(struct uart_port *p, int offset)
427{ 426{
428 offset = map_8250_in_reg(p, offset) << p->regshift; 427 offset = map_8250_in_reg(p, offset) << p->regshift;
@@ -434,7 +433,6 @@ static void au_serial_out(struct uart_port *p, int offset, int value)
434 offset = map_8250_out_reg(p, offset) << p->regshift; 433 offset = map_8250_out_reg(p, offset) << p->regshift;
435 __raw_writel(value, p->membase + offset); 434 __raw_writel(value, p->membase + offset);
436} 435}
437#endif
438 436
439static unsigned int tsi_serial_in(struct uart_port *p, int offset) 437static unsigned int tsi_serial_in(struct uart_port *p, int offset)
440{ 438{
@@ -503,12 +501,11 @@ static void set_io_from_upio(struct uart_port *p)
503 p->serial_out = mem32_serial_out; 501 p->serial_out = mem32_serial_out;
504 break; 502 break;
505 503
506#ifdef CONFIG_SERIAL_8250_AU1X00
507 case UPIO_AU: 504 case UPIO_AU:
508 p->serial_in = au_serial_in; 505 p->serial_in = au_serial_in;
509 p->serial_out = au_serial_out; 506 p->serial_out = au_serial_out;
510 break; 507 break;
511#endif 508
512 case UPIO_TSI: 509 case UPIO_TSI:
513 p->serial_in = tsi_serial_in; 510 p->serial_in = tsi_serial_in;
514 p->serial_out = tsi_serial_out; 511 p->serial_out = tsi_serial_out;
@@ -535,9 +532,7 @@ serial_out_sync(struct uart_8250_port *up, int offset, int value)
535 switch (p->iotype) { 532 switch (p->iotype) {
536 case UPIO_MEM: 533 case UPIO_MEM:
537 case UPIO_MEM32: 534 case UPIO_MEM32:
538#ifdef CONFIG_SERIAL_8250_AU1X00
539 case UPIO_AU: 535 case UPIO_AU:
540#endif
541 case UPIO_DWAPB: 536 case UPIO_DWAPB:
542 p->serial_out(p, offset, value); 537 p->serial_out(p, offset, value);
543 p->serial_in(p, UART_LCR); /* safe, no side-effects */ 538 p->serial_in(p, UART_LCR); /* safe, no side-effects */
@@ -573,7 +568,7 @@ static inline void _serial_dl_write(struct uart_8250_port *up, int value)
573 serial_outp(up, UART_DLM, value >> 8 & 0xff); 568 serial_outp(up, UART_DLM, value >> 8 & 0xff);
574} 569}
575 570
576#if defined(CONFIG_SERIAL_8250_AU1X00) 571#if defined(CONFIG_MIPS_ALCHEMY)
577/* Au1x00 haven't got a standard divisor latch */ 572/* Au1x00 haven't got a standard divisor latch */
578static int serial_dl_read(struct uart_8250_port *up) 573static int serial_dl_read(struct uart_8250_port *up)
579{ 574{
@@ -2596,11 +2591,9 @@ static void serial8250_config_port(struct uart_port *port, int flags)
2596 if (flags & UART_CONFIG_TYPE) 2591 if (flags & UART_CONFIG_TYPE)
2597 autoconfig(up, probeflags); 2592 autoconfig(up, probeflags);
2598 2593
2599#ifdef CONFIG_SERIAL_8250_AU1X00
2600 /* if access method is AU, it is a 16550 with a quirk */ 2594 /* if access method is AU, it is a 16550 with a quirk */
2601 if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU) 2595 if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU)
2602 up->bugs |= UART_BUG_NOMSR; 2596 up->bugs |= UART_BUG_NOMSR;
2603#endif
2604 2597
2605 if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ) 2598 if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
2606 autoconfig_irq(up); 2599 autoconfig_irq(up);