m68knommu: platform code merge for 68000 core cpus
This patch merges all 68000 core cpus into one directory.
There is a lot of common code in the 68328, 68EZ328 and 68VZ328 directories.
This will also facilitate easy development of support for original stand
alone MC68000 CPU machines.
Signed-off-by: Luis Alves <ljalvs@gmail.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68k/platform/68000/m68VZ328.c b/arch/m68k/platform/68000/m68VZ328.c
new file mode 100644
index 0000000..eb6964f
--- /dev/null
+++ b/arch/m68k/platform/68000/m68VZ328.c
@@ -0,0 +1,188 @@
+/***************************************************************************/
+
+/*
+ * 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/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 <asm/pgtable.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+#include <asm/bootstd.h>
+
+#ifdef CONFIG_INIT_LCD
+#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_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
+}
+
+/***************************************************************************/
+/* Init RT-Control uCdimm hardware */
+/***************************************************************************/
+#elif defined(CONFIG_UCDIMM)
+
+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"
+ );
+}
+
+unsigned char *cs8900a_hwaddr;
+static int errno;
+
+_bsc0(char *, getserialnum)
+_bsc1(unsigned char *, gethwaddr, int, a)
+_bsc1(char *, getbenv, char *, a)
+
+static void init_hardware(char *command, int size)
+{
+ char *p;
+
+ printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum());
+ p = cs8900a_hwaddr = gethwaddr(0);
+ printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ p[0], p[1], p[2], p[3], p[4], p[5]);
+ p = getbenv("APPEND");
+ if (p)
+ strcpy(p, command);
+ else
+ command[0] = 0;
+}
+
+/***************************************************************************/
+#else
+
+static void m68vz328_reset(void)
+{
+}
+
+static void init_hardware(char *command, int size)
+{
+}
+
+/***************************************************************************/
+#endif
+/***************************************************************************/
+
+void config_BSP(char *command, int size)
+{
+ printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
+
+ init_hardware(command, size);
+
+ mach_hwclk = m68328_hwclk;
+ mach_reset = m68vz328_reset;
+}
+
+/***************************************************************************/