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authorGreg Ungerer <gerg@snapgear.com>2005-09-02 10:42:52 +1000
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-02 00:57:29 -0700
commitb5aaf3f71cf5a6115cf76671b011de0209223fc2 (patch)
tree29a2f997df94da3de8dc43903f1f89661c3a33c1 /arch/m68knommu/platform
parent138307b475286a5bcc985b06b3e71fcd33dd5e2c (diff)
[PATCH] m68knommu: 523x ColdFire processor init code
Low level initialization code for the 523x ColdFire processor family. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m68knommu/platform')
-rw-r--r--arch/m68knommu/platform/523x/config.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68knommu/platform/523x/config.c
new file mode 100644
index 00000000000..22767ce506e
--- /dev/null
+++ b/arch/m68knommu/platform/523x/config.c
@@ -0,0 +1,82 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/523x/config.c
+ *
+ * Sub-architcture dependant initialization code for the Freescale
+ * 523x CPUs.
+ *
+ * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
+ * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/dma.h>
+#include <asm/traps.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfdma.h>
+
+/***************************************************************************/
+
+void coldfire_pit_tick(void);
+void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
+unsigned long coldfire_pit_offset(void);
+void coldfire_trap_init(void);
+void coldfire_reset(void);
+
+/***************************************************************************/
+
+/*
+ * DMA channel base address table.
+ */
+unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
+ MCF_MBAR + MCFDMA_BASE0,
+};
+
+unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
+
+/***************************************************************************/
+
+void mcf_disableall(void)
+{
+ *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff;
+ *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff;
+}
+
+/***************************************************************************/
+
+void mcf_autovector(unsigned int vec)
+{
+ /* Everything is auto-vectored on the 5272 */
+}
+
+/***************************************************************************/
+
+void config_BSP(char *commandp, int size)
+{
+ mcf_disableall();
+
+#ifdef CONFIG_BOOTPARAM
+ strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
+ commandp[size-1] = 0;
+#else
+ memset(commandp, 0, size);
+#endif
+
+ mach_sched_init = coldfire_pit_init;
+ mach_tick = coldfire_pit_tick;
+ mach_gettimeoffset = coldfire_pit_offset;
+ mach_trap_init = coldfire_trap_init;
+ mach_reset = coldfire_reset;
+}
+
+/***************************************************************************/