[MIPS] TXx9: Unify serial_txx9 setup
* Unify calling of early_serial_txx9_setup.
* Use dedicated serial clock on RBTX4938.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index b136c66..94ce1a5 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -21,6 +21,7 @@
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
+#include <linux/serial_core.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/reboot.h>
@@ -247,6 +248,29 @@
platform_device_put(pdev);
}
+void __init txx9_sio_init(unsigned long baseaddr, int irq,
+ unsigned int line, unsigned int sclk, int nocts)
+{
+#ifdef CONFIG_SERIAL_TXX9
+ struct uart_port req;
+
+ memset(&req, 0, sizeof(req));
+ req.line = line;
+ req.iotype = UPIO_MEM;
+ req.membase = ioremap(baseaddr, 0x24);
+ req.mapbase = baseaddr;
+ req.irq = irq;
+ if (!nocts)
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ if (sclk) {
+ req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/;
+ req.uartclk = sclk;
+ } else
+ req.uartclk = TXX9_IMCLK;
+ early_serial_txx9_setup(&req);
+#endif /* CONFIG_SERIAL_TXX9 */
+}
+
/* wrappers */
void __init plat_mem_setup(void)
{
diff --git a/arch/mips/txx9/generic/setup_tx3927.c b/arch/mips/txx9/generic/setup_tx3927.c
index 0d09a0f..7bd963d 100644
--- a/arch/mips/txx9/generic/setup_tx3927.c
+++ b/arch/mips/txx9/generic/setup_tx3927.c
@@ -13,8 +13,8 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <linux/serial_core.h>
#include <linux/param.h>
+#include <linux/io.h>
#include <asm/mipsregs.h>
#include <asm/txx9irq.h>
#include <asm/txx9tmr.h>
@@ -119,23 +119,12 @@
txx9_clocksource_init(TX3927_TMR_REG(src_tmrnr), TXX9_IMCLK);
}
-void __init tx3927_setup_serial(unsigned int cts_mask)
+void __init tx3927_sio_init(unsigned int sclk, unsigned int cts_mask)
{
-#ifdef CONFIG_SERIAL_TXX9
int i;
- struct uart_port req;
- for (i = 0; i < 2; i++) {
- memset(&req, 0, sizeof(req));
- req.line = i;
- req.iotype = UPIO_MEM;
- req.membase = (unsigned char __iomem *)TX3927_SIO_REG(i);
- req.mapbase = TX3927_SIO_REG(i);
- req.irq = TXX9_IRQ_BASE + TX3927_IR_SIO(i);
- if (!((1 << i) & cts_mask))
- req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
- req.uartclk = TXX9_IMCLK;
- early_serial_txx9_setup(&req);
- }
-#endif /* CONFIG_SERIAL_TXX9 */
+ for (i = 0; i < 2; i++)
+ txx9_sio_init(TX3927_SIO_REG(i),
+ TXX9_IRQ_BASE + TX3927_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
}
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
index b42c855..f80d4b7 100644
--- a/arch/mips/txx9/generic/setup_tx4927.c
+++ b/arch/mips/txx9/generic/setup_tx4927.c
@@ -13,7 +13,6 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <linux/serial_core.h>
#include <linux/param.h>
#include <asm/txx9irq.h>
#include <asm/txx9tmr.h>
@@ -178,22 +177,12 @@
TXX9_IMCLK);
}
-void __init tx4927_setup_serial(void)
+void __init tx4927_sio_init(unsigned int sclk, unsigned int cts_mask)
{
-#ifdef CONFIG_SERIAL_TXX9
int i;
- struct uart_port req;
- for (i = 0; i < 2; i++) {
- memset(&req, 0, sizeof(req));
- req.line = i;
- req.iotype = UPIO_MEM;
- req.membase = (unsigned char __iomem *)TX4927_SIO_REG(i);
- req.mapbase = TX4927_SIO_REG(i) & 0xfffffffffULL;
- req.irq = TXX9_IRQ_BASE + TX4927_IR_SIO(i);
- req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
- req.uartclk = TXX9_IMCLK;
- early_serial_txx9_setup(&req);
- }
-#endif /* CONFIG_SERIAL_TXX9 */
+ for (i = 0; i < 2; i++)
+ txx9_sio_init(TX4927_SIO_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
}
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
index 1ceace4..f3040b9 100644
--- a/arch/mips/txx9/generic/setup_tx4938.c
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -13,7 +13,6 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <linux/serial_core.h>
#include <linux/param.h>
#include <asm/txx9irq.h>
#include <asm/txx9tmr.h>
@@ -238,11 +237,9 @@
TXX9_IMCLK);
}
-void __init tx4938_setup_serial(void)
+void __init tx4938_sio_init(unsigned int sclk, unsigned int cts_mask)
{
-#ifdef CONFIG_SERIAL_TXX9
int i;
- struct uart_port req;
unsigned int ch_mask = 0;
if (__raw_readq(&tx4938_ccfgptr->pcfg) & TX4938_PCFG_ETH0_SEL)
@@ -250,17 +247,10 @@
for (i = 0; i < 2; i++) {
if ((1 << i) & ch_mask)
continue;
- memset(&req, 0, sizeof(req));
- req.line = i;
- req.iotype = UPIO_MEM;
- req.membase = (unsigned char __iomem *)TX4938_SIO_REG(i);
- req.mapbase = TX4938_SIO_REG(i) & 0xfffffffffULL;
- req.irq = TXX9_IRQ_BASE + TX4938_IR_SIO(i);
- req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
- req.uartclk = TXX9_IMCLK;
- early_serial_txx9_setup(&req);
+ txx9_sio_init(TX4938_SIO_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
}
-#endif /* CONFIG_SERIAL_TXX9 */
}
void __init tx4938_spi_init(int busid)
diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
index cf7513d..87db41b 100644
--- a/arch/mips/txx9/jmr3927/setup.c
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -105,7 +105,7 @@
/* initialize board */
jmr3927_board_init();
- tx3927_setup_serial(1 << 1); /* ch1: noCTS */
+ tx3927_sio_init(0, 1 << 1); /* ch1: noCTS */
#ifdef CONFIG_SERIAL_TXX9_CONSOLE
argptr = prom_getcmdline();
if (!strstr(argptr, "console="))
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
index 962ada5..0d39baf 100644
--- a/arch/mips/txx9/rbtx4927/setup.c
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -212,7 +212,7 @@
set_io_port_base(KSEG1 + RBTX4927_ISA_IO_OFFSET);
#endif
- tx4927_setup_serial();
+ tx4927_sio_init(0, 0);
#ifdef CONFIG_SERIAL_TXX9_CONSOLE
argptr = prom_getcmdline();
if (!strstr(argptr, "console="))
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index 5c05a21..9ab48de 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -165,7 +165,7 @@
set_io_port_base(RBTX4938_ETHER_BASE);
#endif
- tx4938_setup_serial();
+ tx4938_sio_init(7372800, 0);
#ifdef CONFIG_SERIAL_TXX9_CONSOLE
argptr = prom_getcmdline();
if (!strstr(argptr, "console="))