Commit 12bf3f24 authored by Manuel Lauss's avatar Manuel Lauss Committed by Ralf Baechle
Browse files

SERIAL: 8250: Remove SERIAL_8250_AU1X00 



Remove the SERIAL_8250_AU1X00 config symbol.  Instead, use the MIPS_ALCHEMY
one which is always defined when building an Au1x00-based platform.

Signed-off-by: default avatarManuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Linux-serial <linux-serial@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/1461/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>

This one depends on a previous patch (which removes SOC_AU1X00 and changes
MACH_ALCHEMY) to apply cleanly (and then actually work), so I'd love for
this to go in via the mips tree.
parent 42a4f17d

arch/mips/alchemy/common/platform.c

+0 −2
Original line number Diff line number Diff line
@@ -33,7 +33,6 @@ 
	}



static struct plat_serial8250_port au1x00_uart_data[] = {

#if defined(CONFIG_SERIAL_8250_AU1X00)

#if defined(CONFIG_SOC_AU1000)

	PORT(UART0_PHYS_ADDR, AU1000_UART0_INT),

	PORT(UART1_PHYS_ADDR, AU1000_UART1_INT),
@@ -54,7 +53,6 @@ static struct plat_serial8250_port au1x00_uart_data[] = { 
	PORT(UART0_PHYS_ADDR, AU1200_UART0_INT),

	PORT(UART1_PHYS_ADDR, AU1200_UART1_INT),

#endif

#endif	/* CONFIG_SERIAL_8250_AU1X00 */

	{ },

};

drivers/serial/8250.c

+3 −10
Original line number Diff line number Diff line
@@ -302,7 +302,7 @@ static const struct serial8250_config uart_config[] = { 
	},

};



#if defined (CONFIG_SERIAL_8250_AU1X00)

#if defined(CONFIG_MIPS_ALCHEMY)



/* Au1x00 UART hardware has a weird register layout */

static const u8 au_io_in_map[] = {
@@ -422,7 +422,6 @@ static unsigned int mem32_serial_in(struct uart_port *p, int offset) 
	return readl(p->membase + offset);

}



#ifdef CONFIG_SERIAL_8250_AU1X00

static unsigned int au_serial_in(struct uart_port *p, int offset)

{

	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) 
	offset = map_8250_out_reg(p, offset) << p->regshift;

	__raw_writel(value, p->membase + offset);

}

#endif



static unsigned int tsi_serial_in(struct uart_port *p, int offset)

{
@@ -503,12 +501,11 @@ static void set_io_from_upio(struct uart_port *p) 
		p->serial_out = mem32_serial_out;

		break;



#ifdef CONFIG_SERIAL_8250_AU1X00

	case UPIO_AU:

		p->serial_in = au_serial_in;

		p->serial_out = au_serial_out;

		break;

#endif



	case UPIO_TSI:

		p->serial_in = tsi_serial_in;

		p->serial_out = tsi_serial_out;
@@ -535,9 +532,7 @@ serial_out_sync(struct uart_8250_port *up, int offset, int value) 
	switch (p->iotype) {

	case UPIO_MEM:

	case UPIO_MEM32:

#ifdef CONFIG_SERIAL_8250_AU1X00

	case UPIO_AU:

#endif

	case UPIO_DWAPB:

		p->serial_out(p, offset, value);

		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) 
	serial_outp(up, UART_DLM, value >> 8 & 0xff);

}



#if defined(CONFIG_SERIAL_8250_AU1X00)

#if defined(CONFIG_MIPS_ALCHEMY)

/* Au1x00 haven't got a standard divisor latch */

static int serial_dl_read(struct uart_8250_port *up)

{
@@ -2596,11 +2591,9 @@ static void serial8250_config_port(struct uart_port *port, int flags) 
	if (flags & UART_CONFIG_TYPE)

		autoconfig(up, probeflags);



#ifdef CONFIG_SERIAL_8250_AU1X00

	/* if access method is AU, it is a 16550 with a quirk */

	if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU)

		up->bugs |= UART_BUG_NOMSR;

#endif



	if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)

		autoconfig_irq(up);

drivers/serial/Kconfig

+0 −8
Original line number Diff line number Diff line
@@ -258,14 +258,6 @@ config SERIAL_8250_ACORN 
	  system, say Y to this option.  The driver can handle 1, 2, or 3 port

	  cards.  If unsure, say N.



config SERIAL_8250_AU1X00

	bool "Au1x00 serial port support"

	depends on SERIAL_8250 != n && MIPS_ALCHEMY

	help

	  If you have an Au1x00 SOC based board and want to use the serial port,

	  say Y to this option. The driver can handle up to 4 serial ports,

	  depending on the SOC. If unsure, say N.



config SERIAL_8250_RM9K

	bool "Support for MIPS RM9xxx integrated serial port"

	depends on SERIAL_8250 != n && SERIAL_RM9000

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