[PATCH] m68knommu: 523x ColdFire processor init code
Greg Ungerer [Fri, 2 Sep 2005 00:42:52 +0000 (10:42 +1000)]
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>

arch/m68knommu/platform/523x/config.c [new file with mode: 0644]

diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68knommu/platform/523x/config.c
new file mode 100644 (file)
index 0000000..22767ce
--- /dev/null
@@ -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;
+}
+
+/***************************************************************************/