arch: remove frv port

The Fujitsu FRV kernel port has been around for a long time, but has not
seen regular updates in several years and instead was marked 'Orphaned'
in 2016 by long-time maintainer David Howells.

The SoC product line apparently is apparently still around in the form
of the Socionext Milbeaut image processor, but this one no longer uses
the FRV CPU cores.

This removes all FRV specific files from the kernel.

Link: http://www.socionext.com/en/products/assp/milbeaut/
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 118 deletions

diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
deleted file mode 100644
index e7130abc0dae..000000000000
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/* pci-dma.c: Dynamic DMA mapping support for the FRV CPUs that have MMUs
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/types.h>
-#include <linux/dma-mapping.h>
-#include <linux/list.h>
-#include <linux/pci.h>
-#include <linux/export.h>
-#include <linux/highmem.h>
-#include <linux/scatterlist.h>
-#include <asm/io.h>
-
-static void *frv_dma_alloc(struct device *hwdev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
-{
-	void *ret;
-
-	ret = consistent_alloc(gfp, size, dma_handle);
-	if (ret)
-		memset(ret, 0, size);
-
-	return ret;
-}
-
-static void frv_dma_free(struct device *hwdev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, unsigned long attrs)
-{
-	consistent_free(vaddr);
-}
-
-static int frv_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	struct scatterlist *sg;
-	unsigned long dampr2;
-	void *vaddr;
-	int i;
-
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return nents;
-
-	dampr2 = __get_DAMPR(2);
-
-	for_each_sg(sglist, sg, nents, i) {
-		vaddr = kmap_atomic_primary(sg_page(sg));
-
-		frv_dcache_writeback((unsigned long) vaddr,
-				     (unsigned long) vaddr + PAGE_SIZE);
-
-	}
-
-	kunmap_atomic_primary(vaddr);
-	if (dampr2) {
-		__set_DAMPR(2, dampr2);
-		__set_IAMPR(2, dampr2);
-	}
-
-	return nents;
-}
-
-static dma_addr_t frv_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		flush_dcache_page(page);
-
-	return (dma_addr_t) page_to_phys(page) + offset;
-}
-
-static void frv_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	flush_write_buffers();
-}
-
-static void frv_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	flush_write_buffers();
-}
-
-
-static int frv_dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if (mask < 0x00ffffff)
-                return 0;
-	return 1;
-}
-
-const struct dma_map_ops frv_dma_ops = {
-	.alloc			= frv_dma_alloc,
-	.free			= frv_dma_free,
-	.map_page		= frv_dma_map_page,
-	.map_sg			= frv_dma_map_sg,
-	.sync_single_for_device	= frv_dma_sync_single_for_device,
-	.sync_sg_for_device	= frv_dma_sync_sg_for_device,
-	.dma_supported		= frv_dma_supported,
-};
-EXPORT_SYMBOL(frv_dma_ops);