[PATCH v2 1/2] m68k: m68328: move platform code to separate files

From: Arnd Bergmann
Date: Fri Oct 30 2020 - 10:27:03 EST

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From: Arnd Bergmann <arnd@xxxxxxxx>

The dragen2 and ucsimm/ucdimm files require a bit of
custom code compared to the other dragonball platforms,
move them into separate files as a preparation for a
build fix.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
Just a small cleanup after I ran into some issue during build
testing my timer patches, the second patch contains the
actual bugfix but relies on this preparation patch.
---
arch/m68k/68000/Makefile | 4 ++
arch/m68k/68000/dragen2.c | 100 +++++++++++++++++++++++++++
arch/m68k/68000/m68328.c | 3 +-
arch/m68k/68000/m68328.h | 5 ++
arch/m68k/68000/m68EZ328.c | 23 +------
arch/m68k/68000/m68VZ328.c | 136 ++-----------------------------------
arch/m68k/68000/ucsimm.c | 38 +++++++++++
7 files changed, 158 insertions(+), 151 deletions(-)
create mode 100644 arch/m68k/68000/dragen2.c
create mode 100644 arch/m68k/68000/m68328.h
create mode 100644 arch/m68k/68000/ucsimm.c

diff --git a/arch/m68k/68000/Makefile b/arch/m68k/68000/Makefile
index 4f7d4b45a46f..ce0b26d6580d 100644
--- a/arch/m68k/68000/Makefile
+++ b/arch/m68k/68000/Makefile
@@ -16,4 +16,8 @@ obj-$(CONFIG_M68EZ328) += m68EZ328.o
obj-$(CONFIG_M68VZ328) += m68VZ328.o
obj-$(CONFIG_ROM) += romvec.o

+obj-$(CONFIG_DRAGEN2) += dragen2.o
+obj-$(CONFIG_UCSIMM) += ucsimm.o
+obj-$(CONFIG_UCDIMM) += ucsimm.o
+
extra-y := head.o
diff --git a/arch/m68k/68000/dragen2.c b/arch/m68k/68000/dragen2.c
new file mode 100644
index 000000000000..584893c57c37
--- /dev/null
+++ b/arch/m68k/68000/dragen2.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * 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 <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+
+/***************************************************************************/
+/* Init Drangon Engine hardware */
+/***************************************************************************/
+
+static void dragen2_reset(void)
+{
+ local_irq_disable();
+
+#ifdef CONFIG_INIT_LCD
+ PBDATA |= 0x20; /* disable CCFL light */
+ PKDATA |= 0x4; /* disable LCD controller */
+ LCKCON = 0;
+#endif
+
+ __asm__ __volatile__(
+ "reset\n\t"
+ "moveal #0x04000000, %a0\n\t"
+ "moveal 0(%a0), %sp\n\t"
+ "moveal 4(%a0), %a0\n\t"
+ "jmp (%a0)"
+ );
+}
+
+void __init init_dragen2(char *command, int size)
+{
+ mach_reset = dragen2_reset;
+
+#ifdef CONFIG_DIRECT_IO_ACCESS
+ SCR = 0x10; /* allow user access to internal registers */
+#endif
+
+ /* CSGB Init */
+ CSGBB = 0x4000;
+ CSB = 0x1a1;
+
+ /* CS8900 init */
+ /* PK3: hardware sleep function pin, active low */
+ PKSEL |= PK(3); /* select pin as I/O */
+ PKDIR |= PK(3); /* select pin as output */
+ PKDATA |= PK(3); /* set pin high */
+
+ /* PF5: hardware reset function pin, active high */
+ PFSEL |= PF(5); /* select pin as I/O */
+ PFDIR |= PF(5); /* select pin as output */
+ PFDATA &= ~PF(5); /* set pin low */
+
+ /* cs8900 hardware reset */
+ PFDATA |= PF(5);
+ { int i; for (i = 0; i < 32000; ++i); }
+ PFDATA &= ~PF(5);
+
+ /* INT1 enable (cs8900 IRQ) */
+ PDPOL &= ~PD(1); /* active high signal */
+ PDIQEG &= ~PD(1);
+ PDIRQEN |= PD(1); /* IRQ enabled */
+
+#ifdef CONFIG_INIT_LCD
+ /* initialize LCD controller */
+ LSSA = (long) screen_bits;
+ LVPW = 0x14;
+ LXMAX = 0x140;
+ LYMAX = 0xef;
+ LRRA = 0;
+ LPXCD = 3;
+ LPICF = 0x08;
+ LPOLCF = 0;
+ LCKCON = 0x80;
+ PCPDEN = 0xff;
+ PCSEL = 0;
+
+ /* Enable LCD controller */
+ PKDIR |= 0x4;
+ PKSEL |= 0x4;
+ PKDATA &= ~0x4;
+
+ /* Enable CCFL backlighting circuit */
+ PBDIR |= 0x20;
+ PBSEL |= 0x20;
+ PBDATA &= ~0x20;
+
+ /* contrast control register */
+ PFDIR |= 0x1;
+ PFSEL &= ~0x1;
+ PWMR = 0x037F;
+#endif
+}
diff --git a/arch/m68k/68000/m68328.c b/arch/m68k/68000/m68328.c
index 419751b15ec8..6a5cfc977150 100644
--- a/arch/m68k/68000/m68328.c
+++ b/arch/m68k/68000/m68328.c
@@ -25,9 +25,10 @@
#include "bootlogo.h"
#endif

+#include "m68328.h"
+
/***************************************************************************/

-int m68328_hwclk(int set, struct rtc_time *t);

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

diff --git a/arch/m68k/68000/m68328.h b/arch/m68k/68000/m68328.h
new file mode 100644
index 000000000000..f6047c3168d4
--- /dev/null
+++ b/arch/m68k/68000/m68328.h
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+void init_dragen2(char *command, int size);
+void init_ucsimm(char *command, int size);
+struct rtc_time;
+int m68328_hwclk(int set, struct rtc_time *t);
diff --git a/arch/m68k/68000/m68EZ328.c b/arch/m68k/68000/m68EZ328.c
index 05f137dc257e..65bd112285ef 100644
--- a/arch/m68k/68000/m68EZ328.c
+++ b/arch/m68k/68000/m68EZ328.c
@@ -24,9 +24,7 @@
#include <asm/bootstd.h>
#endif

-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
+#include "m68328.h"

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

@@ -44,29 +42,12 @@ void m68ez328_reset(void)

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

-unsigned char *cs8900a_hwaddr;
-static int errno;
-
-#ifdef CONFIG_UCSIMM
-_bsc0(char *, getserialnum)
-_bsc1(unsigned char *, gethwaddr, int, a)
-_bsc1(char *, getbenv, char *, a)
-#endif
-
void __init config_BSP(char *command, int len)
{
- unsigned char *p;
-
pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");

#ifdef CONFIG_UCSIMM
- pr_info("uCsimm serial string [%s]\n", getserialnum());
- p = cs8900a_hwaddr = gethwaddr(0);
- pr_info("uCsimm hwaddr %pM\n", p);
-
- p = getbenv("APPEND");
- if (p) strcpy(p,command);
- else command[0] = 0;
+ init_ucsimm(command, len);
#endif

mach_sched_init = hw_timer_init;
diff --git a/arch/m68k/68000/m68VZ328.c b/arch/m68k/68000/m68VZ328.c
index ada87b23afdc..025da5552f1c 100644
--- a/arch/m68k/68000/m68VZ328.c
+++ b/arch/m68k/68000/m68VZ328.c
@@ -32,101 +32,9 @@
#include "bootlogo-vz.h"
#endif

-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
-
-/***************************************************************************/
-/* Init Drangon Engine hardware */
-/***************************************************************************/
-#if defined(CONFIG_DRAGEN2)
-
-static void m68vz328_reset(void)
-{
- local_irq_disable();
-
-#ifdef CONFIG_INIT_LCD
- PBDATA |= 0x20; /* disable CCFL light */
- PKDATA |= 0x4; /* disable LCD controller */
- LCKCON = 0;
-#endif
-
- __asm__ __volatile__(
- "reset\n\t"
- "moveal #0x04000000, %a0\n\t"
- "moveal 0(%a0), %sp\n\t"
- "moveal 4(%a0), %a0\n\t"
- "jmp (%a0)"
- );
-}
-
-static void __init init_hardware(char *command, int size)
-{
-#ifdef CONFIG_DIRECT_IO_ACCESS
- SCR = 0x10; /* allow user access to internal registers */
-#endif
-
- /* CSGB Init */
- CSGBB = 0x4000;
- CSB = 0x1a1;
-
- /* CS8900 init */
- /* PK3: hardware sleep function pin, active low */
- PKSEL |= PK(3); /* select pin as I/O */
- PKDIR |= PK(3); /* select pin as output */
- PKDATA |= PK(3); /* set pin high */
-
- /* PF5: hardware reset function pin, active high */
- PFSEL |= PF(5); /* select pin as I/O */
- PFDIR |= PF(5); /* select pin as output */
- PFDATA &= ~PF(5); /* set pin low */
-
- /* cs8900 hardware reset */
- PFDATA |= PF(5);
- { int i; for (i = 0; i < 32000; ++i); }
- PFDATA &= ~PF(5);
-
- /* INT1 enable (cs8900 IRQ) */
- PDPOL &= ~PD(1); /* active high signal */
- PDIQEG &= ~PD(1);
- PDIRQEN |= PD(1); /* IRQ enabled */
-
-#ifdef CONFIG_INIT_LCD
- /* initialize LCD controller */
- LSSA = (long) screen_bits;
- LVPW = 0x14;
- LXMAX = 0x140;
- LYMAX = 0xef;
- LRRA = 0;
- LPXCD = 3;
- LPICF = 0x08;
- LPOLCF = 0;
- LCKCON = 0x80;
- PCPDEN = 0xff;
- PCSEL = 0;
-
- /* Enable LCD controller */
- PKDIR |= 0x4;
- PKSEL |= 0x4;
- PKDATA &= ~0x4;
-
- /* Enable CCFL backlighting circuit */
- PBDIR |= 0x20;
- PBSEL |= 0x20;
- PBDATA &= ~0x20;
-
- /* contrast control register */
- PFDIR |= 0x1;
- PFSEL &= ~0x1;
- PWMR = 0x037F;
-#endif
-}
+#include "m68328.h"

/***************************************************************************/
-/* Init RT-Control uCdimm hardware */
-/***************************************************************************/
-#elif defined(CONFIG_UCDIMM)
-
static void m68vz328_reset(void)
{
local_irq_disable();
@@ -139,51 +47,21 @@ static void m68vz328_reset(void)
);
}

-unsigned char *cs8900a_hwaddr;
-static int errno;
-
-_bsc0(char *, getserialnum)
-_bsc1(unsigned char *, gethwaddr, int, a)
-_bsc1(char *, getbenv, char *, a)
-
-static void __init init_hardware(char *command, int size)
-{
- char *p;
-
- pr_info("uCdimm serial string [%s]\n", getserialnum());
- p = cs8900a_hwaddr = gethwaddr(0);
- pr_info("uCdimm hwaddr %pM\n", p);
- p = getbenv("APPEND");
- if (p)
- strcpy(p, command);
- else
- command[0] = 0;
-}
-
-/***************************************************************************/
-#else
-
-static void m68vz328_reset(void)
-{
-}
-
-static void __init init_hardware(char *command, int size)
-{
-}
-
-/***************************************************************************/
-#endif
/***************************************************************************/

void __init config_BSP(char *command, int size)
{
pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");

- init_hardware(command, size);
-
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/68000/ucsimm.c b/arch/m68k/68000/ucsimm.c
new file mode 100644
index 000000000000..7c6cbf643712
--- /dev/null
+++ b/arch/m68k/68000/ucsimm.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * 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 <asm/bootstd.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+
+
+#include "m68328.h"
+
+unsigned char *cs8900a_hwaddr;
+static int errno;
+
+_bsc0(char *, getserialnum)
+_bsc1(unsigned char *, gethwaddr, int, a)
+_bsc1(char *, getbenv, char *, a)
+
+void __init init_ucsimm(char *command, int size)
+{
+ char *p;
+
+ pr_info("uCsimm/uCdimm serial string [%s]\n", getserialnum());
+ p = cs8900a_hwaddr = gethwaddr(0);
+ pr_info("uCsimm/uCdimm hwaddr %pM\n", p);
+ p = getbenv("APPEND");
+ if (p)
+ strcpy(p, command);
+ else
+ command[0] = 0;
+}
--
2.27.0

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