[ARM] 4331/3: Support for Micrel/Kendin KS8695 processor

Add core support for the Kendin/Micrel KS8695 processor family.

It is an ARM922-T based SoC with integrated USART, 4-port Ethernet
Switch, WAN Ethernet port, and optional PCI Host bridge, etc.
 http://www.micrel.com/page.do?page=product-info/sys_on_chip.jsp

This patch is based on earlier patches from Lennert Buytenhek, Ben
Dooks and Greg Ungerer posted to the arm-linux-kernel mailing list in
March 2006;  and Micrel's 2.6.9 port.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 49 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ks8695/memory.h b/include/asm-arm/arch-ks8695/memory.h
new file mode 100644
index 000000000000..24f6a6e4a302
--- /dev/null
+++ b/include/asm-arm/arch-ks8695/memory.h
@@ -0,0 +1,49 @@
+/*
+ * include/asm-arm/arch-ks8695/memory.h
+ *
+ * Copyright (C) 2006 Andrew Victor
+ *
+ * KS8695 Memory definitions
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/hardware.h>
+
+/*
+ * Physical SRAM offset.
+ */
+#define PHYS_OFFSET             KS8695_SDRAM_PA
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PCI
+
+/* PCI mappings */
+#define __virt_to_bus(x)        ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA)
+#define __bus_to_virt(x)        ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET)
+
+/* Platform-bus mapping */
+extern struct bus_type platform_bus_type;
+#define is_lbus_device(dev)             (dev && dev->bus == &platform_bus_type)
+#define __arch_dma_to_virt(dev, x)      ({ is_lbus_device(dev) ? \
+                                        __phys_to_virt(x) : __bus_to_virt(x); })
+#define __arch_virt_to_dma(dev, x)      ({ is_lbus_device(dev) ? \
+                                        (dma_addr_t)__virt_to_phys(x) : (dma_addr_t)__virt_to_bus(x); })
+#define __arch_page_to_dma(dev, x)      __arch_virt_to_dma(dev, page_address(x))
+
+#else
+
+#define __virt_to_bus(x)        __virt_to_phys(x)
+#define __bus_to_virt(x)        __phys_to_virt(x)
+
+#endif
+
+#endif
+
+#endif