Add a new port for ARM based products from a variety of vendors, typically

using Redboot as a loader and using pci, that have a variety of fairly minor
hardware differences between them.

1 files changed, 230 insertions, 0 deletions

diff --git a/sys/arch/armish/dev/obio_space.c b/sys/arch/armish/dev/obio_space.c
new file mode 100644
index 00000000000..4949a32b76a
--- /dev/null
+++ b/sys/arch/armish/dev/obio_space.c
@@ -0,0 +1,230 @@
+/*	$NetBSD: obio_space.c,v 1.9 2005/11/24 13:08:33 yamt Exp $	*/
+
+
+/*
+ * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * bus_space functions for IQ80321 on-board devices
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <machine/bus.h>
+
+/* Prototypes for all the bus_space structure functions */
+bs_protos(obio);
+bs_protos(generic);
+bs_protos(generic_armv4);
+bs_protos(bs_notimpl);
+
+/*
+ * The obio bus space tag.  This is constant for all instances, so
+ * we never have to explicitly "create" it.
+ */
+struct bus_space obio_bs_tag = {
+	/* cookie */
+	(void *) 0,
+
+	/* mapping/unmapping */
+	obio_bs_map,
+	obio_bs_unmap,
+	obio_bs_subregion,
+
+	/* allocation/deallocation */
+	obio_bs_alloc,
+	obio_bs_free,
+
+	/* get kernel virtual address */
+	obio_bs_vaddr,
+
+	/* mmap */
+	bs_notimpl_bs_mmap,
+
+	/* barrier */
+	obio_bs_barrier,
+
+	/* read (single) */
+	generic_bs_r_1,
+	generic_armv4_bs_r_2,
+	generic_bs_r_4,
+	bs_notimpl_bs_r_8,
+
+	/* read multiple */
+	generic_bs_rm_1,
+	generic_armv4_bs_rm_2,
+	bs_notimpl_bs_rm_4,
+	bs_notimpl_bs_rm_8,
+
+	/* read region */
+	generic_bs_rr_1,
+	bs_notimpl_bs_rr_2,
+	bs_notimpl_bs_rr_4,
+	bs_notimpl_bs_rr_8,
+
+	/* write (single) */
+	generic_bs_w_1,
+	generic_armv4_bs_w_2,
+	generic_bs_w_4,
+	bs_notimpl_bs_w_8,
+
+	/* write multiple */
+	generic_bs_wm_1,
+	generic_armv4_bs_wm_2,
+	bs_notimpl_bs_wm_4,
+	bs_notimpl_bs_wm_8,
+
+	/* write region */
+	bs_notimpl_bs_wr_1,
+	bs_notimpl_bs_wr_2,
+	bs_notimpl_bs_wr_4,
+	bs_notimpl_bs_wr_8,
+
+	/* set multiple */
+	bs_notimpl_bs_sm_1,
+	bs_notimpl_bs_sm_2,
+	bs_notimpl_bs_sm_4,
+	bs_notimpl_bs_sm_8,
+
+	/* set region */
+	bs_notimpl_bs_sr_1,
+	bs_notimpl_bs_sr_2,
+	bs_notimpl_bs_sr_4,
+	bs_notimpl_bs_sr_8,
+
+	/* copy */
+	bs_notimpl_bs_c_1,
+	bs_notimpl_bs_c_2,
+	bs_notimpl_bs_c_4,
+	bs_notimpl_bs_c_8,
+};
+
+int
+obio_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flag,
+    bus_space_handle_t *bshp)
+{
+	const struct pmap_devmap *pd;
+	paddr_t startpa, endpa, pa;
+	vaddr_t va;
+	pt_entry_t *pte;
+
+	if ((pd = pmap_devmap_find_pa(bpa, size)) != NULL) {
+		/* Device was statically mapped. */
+		*bshp = pd->pd_va + (bpa - pd->pd_pa);
+		return (0);
+	}
+
+	endpa = round_page(bpa + size);
+	startpa = trunc_page(bpa);
+
+	va = uvm_km_valloc(kernel_map, endpa - startpa);
+	if (va == 0)
+		return(ENOMEM);
+
+	*bshp = (bus_space_handle_t)(va + (bpa - startpa));
+
+	for (pa = startpa; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) {
+		pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE);
+		if ((flag & BUS_SPACE_MAP_CACHEABLE) == 0) {
+			pte = vtopte(va);
+			*pte &= ~L2_S_CACHE_MASK;
+			PTE_SYNC(pte);
+		}
+	}
+	pmap_update(pmap_kernel());
+
+	return (0);
+}
+
+int
+obio_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, bus_size_t size,
+    bus_size_t alignment, bus_size_t boundary, int flags, bus_addr_t *bpap,
+    bus_space_handle_t *bshp)
+{
+
+	panic("obio_bs_alloc(): not implemented");
+}
+
+
+void
+obio_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
+{
+	vaddr_t va, endva;
+
+	if (pmap_devmap_find_va(bsh, size) != NULL) {
+		/* Device was statically mapped; nothing to do. */
+		return;
+	}
+
+	endva = round_page(bsh + size);
+	va = trunc_page(bsh);
+
+	pmap_kremove(va, endva - va);
+	uvm_km_free(kernel_map, va, endva - va);
+}
+
+void    
+obio_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size)
+{
+
+	panic("obio_bs_free(): not implemented");
+}
+
+int
+obio_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
+    bus_size_t size, bus_space_handle_t *nbshp)
+{
+
+	*nbshp = bsh + offset;
+	return (0);
+}
+
+void *
+obio_bs_vaddr(void *t, bus_space_handle_t bsh)
+{
+
+	return ((void *)bsh);
+}
+
+void
+obio_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset,
+    bus_size_t len, int flags)
+{
+
+	/* Nothing to do. */
+}