[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>

arch/arm/mach-ks8695/devices.c

@@ -0,0 +1,191 @@
+/*
+ * arch/arm/mach-ks8695/devices.c
+ *
+ * Copyright (C) 2006 Andrew Victor
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <linux/platform_device.h>
+
+#include <asm/arch/regs-wan.h>
+#include <asm/arch/regs-lan.h>
+#include <asm/arch/regs-hpna.h>
+
+
+/* --------------------------------------------------------------------
+ *  Ethernet
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ARM_KS8695_ETHER) || defined(CONFIG_ARM_KS8695_ETHER_MODULE)
+static u64 eth_dmamask = 0xffffffffUL;
+
+static struct resource ks8695_wan_resources[] = {
+	[0] = {
+		.start	= KS8695_WAN_VA,
+		.end	= KS8695_WAN_VA + 0x00ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "WAN RX",
+		.start	= KS8695_IRQ_WAN_RX_STATUS,
+		.end	= KS8695_IRQ_WAN_RX_STATUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.name	= "WAN TX",
+		.start	= KS8695_IRQ_WAN_TX_STATUS,
+		.end	= KS8695_IRQ_WAN_TX_STATUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.name	= "WAN Link",
+		.start	= KS8695_IRQ_WAN_LINK,
+		.end	= KS8695_IRQ_WAN_LINK,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ks8695_wan_device = {
+	.name		= "ks8695_ether",
+	.id		= 0,
+	.dev		= {
+				.dma_mask		= &eth_dmamask,
+				.coherent_dma_mask	= 0xffffffff,
+	},
+	.resource	= ks8695_wan_resources,
+	.num_resources	= ARRAY_SIZE(ks8695_wan_resources),
+};
+
+
+static struct resource ks8695_lan_resources[] = {
+	[0] = {
+		.start	= KS8695_LAN_VA,
+		.end	= KS8695_LAN_VA + 0x00ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "LAN RX",
+		.start	= KS8695_IRQ_LAN_RX_STATUS,
+		.end	= KS8695_IRQ_LAN_RX_STATUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.name	= "LAN TX",
+		.start	= KS8695_IRQ_LAN_TX_STATUS,
+		.end	= KS8695_IRQ_LAN_TX_STATUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ks8695_lan_device = {
+	.name		= "ks8695_ether",
+	.id		= 1,
+	.dev		= {
+				.dma_mask		= &eth_dmamask,
+				.coherent_dma_mask	= 0xffffffff,
+	},
+	.resource	= ks8695_lan_resources,
+	.num_resources	= ARRAY_SIZE(ks8695_lan_resources),
+};
+
+
+static struct resource ks8695_hpna_resources[] = {
+	[0] = {
+		.start	= KS8695_HPNA_VA,
+		.end	= KS8695_HPNA_VA + 0x00ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "HPNA RX",
+		.start	= KS8695_IRQ_HPNA_RX_STATUS,
+		.end	= KS8695_IRQ_HPNA_RX_STATUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.name	= "HPNA TX",
+		.start	= KS8695_IRQ_HPNA_TX_STATUS,
+		.end	= KS8695_IRQ_HPNA_TX_STATUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ks8695_hpna_device = {
+	.name		= "ks8695_ether",
+	.id		= 2,
+	.dev		= {
+				.dma_mask		= &eth_dmamask,
+				.coherent_dma_mask	= 0xffffffff,
+	},
+	.resource	= ks8695_hpna_resources,
+	.num_resources	= ARRAY_SIZE(ks8695_hpna_resources),
+};
+
+void __init ks8695_add_device_wan(void)
+{
+	platform_device_register(&ks8695_wan_device);
+}
+
+void __init ks8695_add_device_lan(void)
+{
+	platform_device_register(&ks8695_lan_device);
+}
+
+void __init ks8696_add_device_hpna(void)
+{
+	platform_device_register(&ks8695_hpna_device);
+}
+#else
+void __init ks8695_add_device_wan(void) {}
+void __init ks8695_add_device_lan(void) {}
+void __init ks8696_add_device_hpna(void) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  Watchdog
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_KS8695_WATCHDOG) || defined(CONFIG_KS8695_WATCHDOG_MODULE)
+static struct platform_device ks8695_wdt_device = {
+	.name		= "ks8695_wdt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init ks8695_add_device_watchdog(void)
+{
+	platform_device_register(&ks8695_wdt_device);
+}
+#else
+static void __init ks8695_add_device_watchdog(void) {}
+#endif
+
+
+/* -------------------------------------------------------------------- */
+
+/*
+ * These devices are always present and don't need any board-specific
+ * setup.
+ */
+static int __init ks8695_add_standard_devices(void)
+{
+	ks8695_add_device_watchdog();
+	return 0;
+}
+
+arch_initcall(ks8695_add_standard_devices);