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, 77 deletions

diff --git a/arch/m32r/boot/compressed/m32r_sio.c b/arch/m32r/boot/compressed/m32r_sio.c
deleted file mode 100644
index 9d34bd063c31..000000000000
--- a/arch/m32r/boot/compressed/m32r_sio.c
+++ /dev/null
@@ -1,77 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * arch/m32r/boot/compressed/m32r_sio.c
- *
- * 2003-02-12:  Takeo Takahashi
- * 2006-11-30:  OPSPUT support by Kazuhiro Inaoka
- *
- */
-
-#include <asm/processor.h>
-
-static void m32r_putc(char c);
-
-static int puts(const char *s)
-{
-        char c;
-        while ((c = *s++))
-                m32r_putc(c);
-        return 0;
-}
-
-#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT)
-#include <asm/m32r.h>
-#include <asm/io.h>
-
-#define USE_FPGA_MAP    0
-
-#if USE_FPGA_MAP
-/*
- * fpga configuration program uses MMU, and define map as same as
- * M32104 uT-Engine board.
- */
-#define BOOT_SIO0STS    (volatile unsigned short *)(0x02c00000 + 0x20006)
-#define BOOT_SIO0TXB    (volatile unsigned short *)(0x02c00000 + 0x2000c)
-#else
-#undef PLD_BASE
-#if defined(CONFIG_PLAT_OPSPUT)
-#define PLD_BASE        0x1cc00000
-#else
-#define PLD_BASE        0xa4c00000
-#endif
-#define BOOT_SIO0STS    PLD_ESIO0STS
-#define BOOT_SIO0TXB    PLD_ESIO0TXB
-#endif
-
-static void m32r_putc(char c)
-{
-        while ((*BOOT_SIO0STS & 0x3) != 0x3)
-                cpu_relax();
-        if (c == '\n') {
-                *BOOT_SIO0TXB = '\r';
-                while ((*BOOT_SIO0STS & 0x3) != 0x3)
-                        cpu_relax();
-        }
-        *BOOT_SIO0TXB = c;
-}
-#else /* !(CONFIG_PLAT_M32700UT) */
-#if defined(CONFIG_PLAT_MAPPI2)
-#define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14)
-#define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30)
-#else
-#define SIO0STS (volatile unsigned short *)(0x00efd000 + 14)
-#define SIO0TXB (volatile unsigned short *)(0x00efd000 + 30)
-#endif
-
-static void m32r_putc(char c)
-{
-        while ((*SIO0STS & 0x1) == 0)
-                cpu_relax();
-        if (c == '\n') {
-                *SIO0TXB = '\r';
-                while ((*SIO0STS & 0x1) == 0)
-                        cpu_relax();
-        }
-        *SIO0TXB = c;
-}
-#endif