[PATCH v2 2/2] m68k: m68328: remove duplicate code

From: Arnd Bergmann
Date: Fri Oct 30 2020 - 10:27:12 EST

From: Arnd Bergmann <arnd@xxxxxxxx>

Building a kernel with multiple dragonball based boards
enabled needlessly causes a link failure because of duplicate
config_BSP() functions between the CPU versions.

Avoid that merging the three almost identical files into one,
and hiding the CPU configuration behind the board config.
The pr_info() lines are consolidated in one place.

It is still not possible to run a kernel configured for
more than one board, but at least configurations that can
be selected can also be built now.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
arch/m68k/68000/Makefile | 5 +--
arch/m68k/68000/m68328.c | 31 ++++++++++-------
arch/m68k/68000/m68EZ328.c | 58 --------------------------------
arch/m68k/68000/m68VZ328.c | 67 -------------------------------------
arch/m68k/Kconfig.cpu | 8 ++---
arch/m68k/Kconfig.machine | 16 +++++----
arch/m68k/kernel/setup_no.c | 9 +++++
7 files changed, 43 insertions(+), 151 deletions(-)
delete mode 100644 arch/m68k/68000/m68EZ328.c
delete mode 100644 arch/m68k/68000/m68VZ328.c

diff --git a/arch/m68k/68000/Makefile b/arch/m68k/68000/Makefile
index ce0b26d6580d..674541fdf5b8 100644
--- a/arch/m68k/68000/Makefile
+++ b/arch/m68k/68000/Makefile
@@ -10,10 +10,7 @@

# 68328, 68EZ328, 68VZ328

-obj-y += entry.o ints.o timers.o
-obj-$(CONFIG_M68328) += m68328.o
-obj-$(CONFIG_M68EZ328) += m68EZ328.o
-obj-$(CONFIG_M68VZ328) += m68VZ328.o
+obj-y += entry.o ints.o timers.o m68328.o
obj-$(CONFIG_ROM) += romvec.o

obj-$(CONFIG_DRAGEN2) += dragen2.o
diff --git a/arch/m68k/68000/m68328.c b/arch/m68k/68000/m68328.c
index 6a5cfc977150..eab08da058c6 100644
--- a/arch/m68k/68000/m68328.c
+++ b/arch/m68k/68000/m68328.c
@@ -1,10 +1,11 @@
/***************************************************************************/

/*
- * m68328.c - 68328 specific config
+ * m68328.c - 68328/68EZ328/68VZ328 specific config
*
* Copyright (C) 1993 Hamish Macdonald
* Copyright (C) 1999 D. Jeff Dionne
+ * Copyright (C) 2001 Georges Menie, Ken Desmet
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
@@ -20,8 +21,10 @@
#include <linux/kernel.h>
#include <linux/rtc.h>
#include <asm/machdep.h>
-#include <asm/MC68328.h>
-#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD)
+
+#if defined(CONFIG_INIT_LCD) && defined(CONFIG_M68VZ328)
+#include "bootlogo-vz.h"
+#elif defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD)
#include "bootlogo.h"
#endif

@@ -29,10 +32,7 @@

/***************************************************************************/

-
-/***************************************************************************/
-
-void m68328_reset (void)
+static void m68328_reset(void)
{
local_irq_disable();
asm volatile ("moveal #0x10c00000, %a0;\n\t"
@@ -46,12 +46,19 @@ void m68328_reset (void)

void __init config_BSP(char *command, int len)
{
- pr_info("68328 support D. Jeff Dionne <jeff@xxxxxxxxxxx>\n");
- pr_info("68328 support Kenneth Albanowski <kjahds@xxxxxxxxxx>\n");
- pr_info("68328/Pilot support Bernhard Kuhn <kuhn@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>\n");
+ mach_sched_init = hw_timer_init;
+ mach_hwclk = m68328_hwclk;
+ mach_reset = m68328_reset;

- mach_hwclk = m68328_hwclk;
- mach_reset = m68328_reset;
+#if defined(CONFIG_PILOT) && defined(CONFIG_M68328)
+ mach_sched_init = NULL;
+#elif defined(CONFIG_UCSIMM)
+ init_ucsimm(command, len);
+#elif defined(CONFIG_UCDIMM)
+ init_ucsimm(command, len);
+#elif defined(CONFIG_DRAGEN2)
+ init_dragen2(command, len);
+#endif
}

/***************************************************************************/
diff --git a/arch/m68k/68000/m68EZ328.c b/arch/m68k/68000/m68EZ328.c
deleted file mode 100644
index 65bd112285ef..000000000000
--- a/arch/m68k/68000/m68EZ328.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/***************************************************************************/
-
-/*
- * m68EZ328.c - 68EZ328 specific config
- *
- * Copyright (C) 1993 Hamish Macdonald
- * Copyright (C) 1999 D. Jeff Dionne
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-/***************************************************************************/
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/rtc.h>
-#include <linux/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/MC68EZ328.h>
-#ifdef CONFIG_UCSIMM
-#include <asm/bootstd.h>
-#endif
-
-#include "m68328.h"
-
-/***************************************************************************/
-
-void m68ez328_reset(void)
-{
- local_irq_disable();
- asm volatile (
- "moveal #0x10c00000, %a0;\n"
- "moveb #0, 0xFFFFF300;\n"
- "moveal 0(%a0), %sp;\n"
- "moveal 4(%a0), %a0;\n"
- "jmp (%a0);\n"
- );
-}
-
-/***************************************************************************/
-
-void __init config_BSP(char *command, int len)
-{
- pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
-
-#ifdef CONFIG_UCSIMM
- init_ucsimm(command, len);
-#endif
-
- mach_sched_init = hw_timer_init;
- mach_hwclk = m68328_hwclk;
- mach_reset = m68ez328_reset;
-}
-
-/***************************************************************************/
diff --git a/arch/m68k/68000/m68VZ328.c b/arch/m68k/68000/m68VZ328.c
deleted file mode 100644
index 025da5552f1c..000000000000
--- a/arch/m68k/68000/m68VZ328.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/***************************************************************************/
-
-/*
- * m68VZ328.c - 68VZ328 specific config
- *
- * Copyright (C) 1993 Hamish Macdonald
- * Copyright (C) 1999 D. Jeff Dionne
- * Copyright (C) 2001 Georges Menie, Ken Desmet
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-/***************************************************************************/
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/kd.h>
-#include <linux/netdevice.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/rtc.h>
-#include <linux/pgtable.h>
-
-#include <asm/machdep.h>
-#include <asm/MC68VZ328.h>
-#include <asm/bootstd.h>
-
-#ifdef CONFIG_INIT_LCD
-#include "bootlogo-vz.h"
-#endif
-
-#include "m68328.h"
-
-/***************************************************************************/
-static void m68vz328_reset(void)
-{
- local_irq_disable();
- asm volatile (
- "moveal #0x10c00000, %a0;\n\t"
- "moveb #0, 0xFFFFF300;\n\t"
- "moveal 0(%a0), %sp;\n\t"
- "moveal 4(%a0), %a0;\n\t"
- "jmp (%a0);\n"
- );
-}
-
-/***************************************************************************/
-
-void __init config_BSP(char *command, int size)
-{
- pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
-
- mach_sched_init = hw_timer_init;
- mach_hwclk = m68328_hwclk;
- mach_reset = m68vz328_reset;
-
-#ifdef CONFIG_UCDIMM
- init_ucsimm(command, len);
-#elif defined(CONFIG_DRAGEN2)
- init_dragen2(command, len);
-#endif
-}
-
-/***************************************************************************/
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 694c4fca9f5d..a65ce7618232 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -35,7 +35,7 @@ endchoice
if M68KCLASSIC

config M68000
- bool "MC68000"
+ bool
depends on !MMU
select CPU_HAS_NO_BITFIELDS
select CPU_HAS_NO_MULDIV64
@@ -102,21 +102,21 @@ config M68060
processor, say Y. Otherwise, say N.

config M68328
- bool "MC68328"
+ bool
depends on !MMU
select M68000
help
Motorola 68328 processor support.

config M68EZ328
- bool "MC68EZ328"
+ bool
depends on !MMU
select M68000
help
Motorola 68EX328 processor support.

config M68VZ328
- bool "MC68VZ328"
+ bool
depends on !MMU
select M68000
help
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index 17e8c3a292d7..1851c66e8667 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -136,14 +136,13 @@ config SUN3

If you don't want to compile a kernel exclusively for a Sun 3, say N.

-endif # M68KCLASSIC
-
config PILOT
bool

config PILOT3
bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support"
- depends on M68328
+ depends on !MMU
+ select M68328
select PILOT
help
Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII.
@@ -156,19 +155,22 @@ config XCOPILOT_BUGS

config UCSIMM
bool "uCsimm module support"
- depends on M68EZ328
+ depends on !MMU
+ select M68EZ328
help
Support for the Arcturus Networks uCsimm module.

config UCDIMM
bool "uDsimm module support"
- depends on M68VZ328
+ depends on !MMU
+ select M68VZ328
help
Support for the Arcturus Networks uDsimm module.

config DRAGEN2
bool "DragenEngine II board support"
- depends on M68VZ328
+ depends on !MMU
+ select M68VZ328
help
Support for the DragenEngine II board.

@@ -191,6 +193,8 @@ config MEMORY_RESERVE
help
Reserve certain memory regions on 68x328 based boards.

+endif # M68KCLASSIC
+
config ARN5206
bool "Arnewsh 5206 board support"
depends on M5206
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index f66f4b1d062e..58dbe10ccf56 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -106,8 +106,16 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_UCDIMM
pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n");
#endif
+#ifdef CONFIG_M68328
+ pr_info("68328 support D. Jeff Dionne <jeff@xxxxxxxxxxx>\n");
+ pr_info("68328 support Kenneth Albanowski <kjahds@xxxxxxxxxx>\n");
+#endif
+#ifdef CONFIG_M68EZ328
+ pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
+#endif
#ifdef CONFIG_M68VZ328
pr_info("M68VZ328 support by Evan Stawnyczy <e@xxxxxxxx>\n");
+ pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
#endif
#ifdef CONFIG_COLDFIRE
pr_info("COLDFIRE port done by Greg Ungerer, gerg@xxxxxxxxxxxx\n");
@@ -121,6 +129,7 @@ void __init setup_arch(char **cmdline_p)
pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");

#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
+ pr_info("68328/Pilot support Bernhard Kuhn <kuhn@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>\n");
pr_info("TRG SuperPilot FLASH card support <info@xxxxxxxxxx>\n");
#endif
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
--
2.27.0