[PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[Wu Zhangjin]

This patch fixes the following warning with RTC_LIB on MIPS:

drivers/rtc/rtc-cmos.c:697:2: warning: #warning Assuming 128 bytes of
RTC+NVRAM address space, not 64 bytes.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
---
 drivers/rtc/rtc-cmos.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index f7a4701..21e48f7 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -691,7 +691,8 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	 */
 #if	defined(CONFIG_ATARI)
 	address_space = 64;
-#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__sparc__)
+#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) \
+			|| defined(__sparc__) || defined(__mips__)
 	address_space = 128;
 #else
 #warning Assuming 128 bytes of RTC+NVRAM address space, not 64 bytes.
-- 
1.6.2.1

[PATCH v1 2/3] RTC: rtc-cmos.c: enable RTC_DM_BINARY of RTC_LIB for fuloong2e and fuloong2f

[Wu Zhangjin]

This patch enables the RTC_DM_BINARY support for RTC_LIB of fuloong2e
and fuloong2f. without it, RTC_LIB not work on those machines.

The platform RTC device driver is coming in the next patch.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
---
 drivers/rtc/rtc-cmos.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 21e48f7..820bdad 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -757,9 +757,8 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	/* FIXME teach the alarm code how to handle binary mode;
 	 * <asm-generic/rtc.h> doesn't know 12-hour mode either.
 	 */
-	if (is_valid_irq(rtc_irq) &&
-	    (!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY)))) {
-		dev_dbg(dev, "only 24-hr BCD mode supported\n");
+	if (is_valid_irq(rtc_irq) && !(rtc_control & RTC_24H)) {
+		dev_dbg(dev, "only 24-hr supported\n");
 		retval = -ENXIO;
 		goto cleanup1;
 	}
-- 
1.6.2.1

[PATCH v1 3/3] [loongson] RTC: Registration of Loongson RTC platform device

[Wu Zhangjin]

This patch add the RTC_LIB support for fuloong2e,fuloong2f.

To make hwclock work with it normally, please do:

kernel configuration:

Device Drivers --->
<*> Real Time Clock --->
	<*>   PC-style 'CMOS'

user-space configuration:

$ mknod /dev/rtc0 c 254 0

/dev/rtc0 is the default RTC device file.

Of course, if udevd installed, ignore the above user-space
configuration.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
---
 arch/mips/loongson/common/Makefile |    6 +++++
 arch/mips/loongson/common/rtc.c    |   43 ++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/loongson/common/rtc.c

diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index d21d116..d1bd38c 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -10,3 +10,9 @@ obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
 #
 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
 obj-$(CONFIG_SERIAL_8250) += serial.o
+
+# Enable RTC Class support
+#
+# please enable CONFIG_RTC_DRV_CMOS
+#
+obj-$(CONFIG_RTC_DRV_CMOS) += rtc.o
diff --git a/arch/mips/loongson/common/rtc.c b/arch/mips/loongson/common/rtc.c
new file mode 100644
index 0000000..1f88791
--- /dev/null
+++ b/arch/mips/loongson/common/rtc.c
@@ -0,0 +1,43 @@
+/*
+ *  Registration of Loongson RTC platform device.
+ *
+ *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2009  Wu Zhangjin <wuzj@lemote.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/mc146818rtc.h>
+#include <linux/platform_device.h>
+
+static struct resource rtc_cmos_resource[] = {
+	{
+		.start	= RTC_PORT(0),
+		.end	= RTC_PORT(1),
+		.flags	= IORESOURCE_IO,
+	},
+	{
+		.start	= RTC_IRQ,
+		.end	= RTC_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtc_cmos_device = {
+	.name		= "rtc_cmos",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtc_cmos_resource),
+	.resource	= rtc_cmos_resource
+};
+
+static __init int rtc_cmos_init(void)
+{
+	return platform_device_register(&rtc_cmos_device);
+}
+
+device_initcall(rtc_cmos_init);
-- 
1.6.2.1

Re: [PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[Ralf Baechle]

On Thu, Nov 05, 2009 at 09:21:54AM +0800, Wu Zhangjin wrote:

> This patch fixes the following warning with RTC_LIB on MIPS:
> 
> drivers/rtc/rtc-cmos.c:697:2: warning: #warning Assuming 128 bytes of
> RTC+NVRAM address space, not 64 bytes.
> 
> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf

Re: [PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[Wu Zhangjin]

On Thu, 2009-11-05 at 08:41 +0100, Ralf Baechle wrote:
> On Thu, Nov 05, 2009 at 09:21:54AM +0800, Wu Zhangjin wrote:
> 
> > This patch fixes the following warning with RTC_LIB on MIPS:
> > 
> > drivers/rtc/rtc-cmos.c:697:2: warning: #warning Assuming 128 bytes of
> > RTC+NVRAM address space, not 64 bytes.
> > 
> > Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
> 
> Acked-by: Ralf Baechle <ralf@linux-mips.org>
> 
>
>   Ralf

Hi, Paul or Alessandro

Could you please apply this pathset?

thanks!

Regards,
	Wu Zhangjin

Re: [PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[Ralf Baechle]

On Thu, Nov 05, 2009 at 09:21:54AM +0800, Wu Zhangjin wrote:

> This patch fixes the following warning with RTC_LIB on MIPS:
> 
> drivers/rtc/rtc-cmos.c:697:2: warning: #warning Assuming 128 bytes of
> RTC+NVRAM address space, not 64 bytes.
> 
> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
> ---
>  drivers/rtc/rtc-cmos.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
> index f7a4701..21e48f7 100644
> --- a/drivers/rtc/rtc-cmos.c
> +++ b/drivers/rtc/rtc-cmos.c
> @@ -691,7 +691,8 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
>  	 */
>  #if	defined(CONFIG_ATARI)
>  	address_space = 64;
> -#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__sparc__)
> +#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) \
> +			|| defined(__sparc__) || defined(__mips__)
>  	address_space = 128;
>  #else
>  #warning Assuming 128 bytes of RTC+NVRAM address space, not 64 bytes.

Ping.

This patch is now nearly a month old and I haven't yet heared anything.
This was actually meant to be 2.6.32 material.

  Ralf

Re: [rtc-linux] Re: [PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[Alessandro Zummo]

On Thu, 3 Dec 2009 15:56:04 +0000
Ralf Baechle <ralf@linux-mips.org> wrote:

> Ping.
> 
> This patch is now nearly a month old and I haven't yet heared anything.
> This was actually meant to be 2.6.32 material.

 I supposed MIPS things were handled by the MIPS tree. If there's
 urgency a submitter should specify the intended delivery path
 (trivial, mips, rtc, directly to Andrew) and kernel release.
 
 Acked-by: Alessandro Zummo <a.zummo@towertech.it>


-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

Re: [rtc-linux] [PATCH v1 3/3] [loongson] RTC: Registration of Loongson RTC platform device

[Alessandro Zummo]

On Thu,  5 Nov 2009 09:24:10 +0800
Wu Zhangjin <wuzhangjin@gmail.com> wrote:

> user-space configuration:
> 
> $ mknod /dev/rtc0 c 254 0

 That's not guaranteed. 

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

Re: [rtc-linux] Re: [PATCH v1 1/3] RTC: rtc-cmos.c: fix warning for MIPS

[Wu Zhangjin]

On Thu, 2009-12-03 at 17:14 +0100, Alessandro Zummo wrote:
> On Thu, 3 Dec 2009 15:56:04 +0000
> Ralf Baechle <ralf@linux-mips.org> wrote:
> 
> > Ping.
> > 
> > This patch is now nearly a month old and I haven't yet heared anything.
> > This was actually meant to be 2.6.32 material.
> 
>  I supposed MIPS things were handled by the MIPS tree. If there's
>  urgency a submitter should specify the intended delivery path
>  (trivial, mips, rtc, directly to Andrew) and kernel release.
>  
>  Acked-by: Alessandro Zummo <a.zummo@towertech.it>

Hi, Alessandro Zummo

Could you please review the left two(only patch 2/3 for rtc tree) for
2.6.33 in http://patchwork.linux-mips.org/bundle/ralf/rtc/ ?

[v1,2/3] RTC: rtc-cmos.c: enable RTC_DM_BINARY of RTC_LIB for fuloong2e
and fuloong2f
[v1,3/3,loongson] RTC: Registration of Loongson RTC platform device

(Sorry, I can not find them in my Email client currently, so can not
reply the old Email thread directly, If necessary, I will resend them,
thanks!)

Best Regards,
	Wu Zhangjin

Re: [rtc-linux] [PATCH v1 2/3] RTC: rtc-cmos.c: enable RTC_DM_BINARY of RTC_LIB for fuloong2e and fuloong2f

[Alessandro Zummo]

On Thu,  5 Nov 2009 09:22:09 +0800
Wu Zhangjin <wuzhangjin@gmail.com> wrote:

>  	 */
> -	if (is_valid_irq(rtc_irq) &&
> -	    (!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY)))) {
> -		dev_dbg(dev, "only 24-hr BCD mode supported\n");
> +	if (is_valid_irq(rtc_irq) && !(rtc_control & RTC_24H)) {
> +		dev_dbg(dev, "only 24-hr supported\n");

 If this check was there it's probably because there are problems
 in some other parts of the driver. I'm not keen to add this without
 some feedback by the original author or porter.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

Re: [rtc-linux] [PATCH v1 2/3] RTC: rtc-cmos.c: enable RTC_DM_BINARY of RTC_LIB for fuloong2e and fuloong2f

[Wu Zhangjin]

On Thu, 2009-12-03 at 17:27 +0100, Alessandro Zummo wrote:
> On Thu,  5 Nov 2009 09:22:09 +0800
> Wu Zhangjin <wuzhangjin@gmail.com> wrote:
> 
> >  	 */
> > -	if (is_valid_irq(rtc_irq) &&
> > -	    (!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY)))) {
> > -		dev_dbg(dev, "only 24-hr BCD mode supported\n");
> > +	if (is_valid_irq(rtc_irq) && !(rtc_control & RTC_24H)) {
> > +		dev_dbg(dev, "only 24-hr supported\n");
> 
>  If this check was there it's probably because there are problems
>  in some other parts of the driver. I'm not keen to add this without
>  some feedback by the original author or porter.
> 

Just found two authors or porters from the file: drivers/rtc/rtc-cmos.c

/*
 * RTC class driver for "CMOS RTC":  PCs, ACPI, etc
 *
 * Copyright (C) 1996 Paul Gortmaker (drivers/char/rtc.c)
 * Copyright (C) 2006 David Brownell (convert to new framework)
[...]

and found out their names in MAINTAINERS and put them in the CC list ;)

Regards,
	Wu Zhangjin

Re: [rtc-linux] [PATCH v1 3/3] [loongson] RTC: Registration of Loongson RTC platform device

[Ralf Baechle]

On Thu, Dec 03, 2009 at 05:21:10PM +0100, Alessandro Zummo wrote:

> > user-space configuration:
> > 
> > $ mknod /dev/rtc0 c 254 0
> 
>  That's not guaranteed. 

Thanks, I've fixed that comment.

  Ralf

Re: [rtc-linux] [PATCH v1 2/3] RTC: rtc-cmos.c: enable RTC_DM_BINARY of RTC_LIB for fuloong2e and fuloong2f

[David Brownell]

On Thursday 03 December 2009, Wu Zhangjin wrote:
> On Thu, 2009-12-03 at 17:27 +0100, Alessandro Zummo wrote:
> > On Thu,  5 Nov 2009 09:22:09 +0800
> > Wu Zhangjin <wuzhangjin@gmail.com> wrote:
> > 
> > >  	 */
> > > -	if (is_valid_irq(rtc_irq) &&
> > > -	    (!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY)))) {
> > > -		dev_dbg(dev, "only 24-hr BCD mode supported\n");
> > > +	if (is_valid_irq(rtc_irq) && !(rtc_control & RTC_24H)) {
> > > +		dev_dbg(dev, "only 24-hr supported\n");
> > 
> >  If this check was there it's probably because there are problems
> >  in some other parts of the driver. I'm not keen to add this without
> >  some feedback by the original author or porter.

As *already* noted in the code:  <asm-generic/rtc.h> only handles BCD.
And that's what's used to access most of those registers.