arch: remove m32r port

The Mitsubishi/Renesas m32r architecture has been around for many years,
but the Linux port has been obsolete for a very long time as well, with
the last significant updates done for linux-2.6.14.

While some m32r microcontrollers are still being marketed by Renesas,
those are apparently no longer possible to support, mainly due to the
lack of an external memory interface.

Hirokazu Takata was the maintainer until the architecture got marked
Orphaned in 2014.

Link: http://www.linux-m32r.org/
Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 66 deletions

diff --git a/arch/m32r/include/asm/rtc.h b/arch/m32r/include/asm/rtc.h
deleted file mode 100644
index a94cf1edc60f..000000000000
--- a/arch/m32r/include/asm/rtc.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __RTC_H__
-#define __RTC_H__
-
-   /* Dallas DS1302 clock/calendar register numbers. */
-#  define RTC_SECONDS      0
-#  define RTC_MINUTES      1
-#  define RTC_HOURS        2
-#  define RTC_DAY_OF_MONTH 3
-#  define RTC_MONTH        4
-#  define RTC_WEEKDAY      5
-#  define RTC_YEAR         6
-#  define RTC_CONTROL      7
-
-   /* Bits in CONTROL register. */
-#  define RTC_CONTROL_WRITEPROTECT 	0x80
-#  define RTC_TRICKLECHARGER 		8
-
-  /* Bits in TRICKLECHARGER register TCS TCS TCS TCS DS DS RS RS. */
-#  define RTC_TCR_PATTERN 	0xA0	/* 1010xxxx */
-#  define RTC_TCR_1DIOD 	0x04	/* xxxx01xx */
-#  define RTC_TCR_2DIOD 	0x08	/* xxxx10xx */
-#  define RTC_TCR_DISABLED 	0x00	/* xxxxxx00 Disabled */
-#  define RTC_TCR_2KOHM 	0x01	/* xxxxxx01 2KOhm */
-#  define RTC_TCR_4KOHM 	0x02	/* xxxxxx10 4kOhm */
-#  define RTC_TCR_8KOHM 	0x03	/* xxxxxx11 8kOhm */
-
-#ifdef CONFIG_DS1302
-extern unsigned char ds1302_readreg(int reg);
-extern void ds1302_writereg(int reg, unsigned char val);
-extern int ds1302_init(void);
-#  define CMOS_READ(x) ds1302_readreg(x)
-#  define CMOS_WRITE(val,reg) ds1302_writereg(reg,val)
-#  define RTC_INIT() ds1302_init()
-#else
-  /* No RTC configured so we shouldn't try to access any. */
-#  define CMOS_READ(x) 42
-#  define CMOS_WRITE(x,y)
-#  define RTC_INIT() (-1)
-#endif
-
-/*
- * The struct used to pass data via the following ioctl. Similar to the
- * struct tm in <time.h>, but it needs to be here so that the kernel
- * source is self contained, allowing cross-compiles, etc. etc.
- */
-struct rtc_time {
-	int tm_sec;
-	int tm_min;
-	int tm_hour;
-	int tm_mday;
-	int tm_mon;
-	int tm_year;
-	int tm_wday;
-	int tm_yday;
-	int tm_isdst;
-};
-
-/* ioctl() calls that are permitted to the /dev/rtc interface. */
-#define RTC_MAGIC 'p'
-#define RTC_RD_TIME		_IOR(RTC_MAGIC, 0x09, struct rtc_time)	/* Read RTC time. */
-#define RTC_SET_TIME		_IOW(RTC_MAGIC, 0x0a, struct rtc_time)	/* Set RTC time. */
-#define RTC_SET_CHARGE  	_IOW(RTC_MAGIC, 0x0b, int)
-#define RTC_MAX_IOCTL 0x0b
-
-#endif /* __RTC_H__ */