[ARM] 3369/1: ep93xx: add core cirrus ep93xx support

Patch from Lennert Buytenhek

This patch adds support for the Cirrus ep93xx series of CPUs.  The
ep93xx is an ARM920T based CPU with two VICs, PL010 based UARTs,
IrDA, MaverickCrunch floating point coprocessor, between 24 and 64
GPIOs, ethernet, OHCI USB and, depending on the model, pcmcia, raster
engine, graphics accelerator, IDE controller and a bunch of other
stuff.

This patch adds the core ep93xx support code, and support for the
Glomation GESBC-9312-sx and the Technologic Systems TS-72xx SBCs.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 118 insertions, 0 deletions

diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
new file mode 100644
index 0000000000000..777e75daa8a54
--- /dev/null
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -0,0 +1,118 @@
+/*
+ * arch/arm/mach-ep93xx/ts72xx.c
+ * Technologic Systems TS72xx SBC support.
+ *
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * 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/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/physmap.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+static struct map_desc ts72xx_io_desc[] __initdata = {
+	{
+		.virtual	= TS72XX_MODEL_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
+		.length		= TS72XX_MODEL_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= TS72XX_OPTIONS_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE),
+		.length		= TS72XX_OPTIONS_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= TS72XX_OPTIONS2_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
+		.length		= TS72XX_OPTIONS2_SIZE,
+		.type		= MT_DEVICE,
+	}
+};
+
+static struct map_desc ts72xx_nand_io_desc[] __initdata = {
+	{
+		.virtual	= TS72XX_NAND_DATA_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_NAND1_DATA_PHYS_BASE),
+		.length		= TS72XX_NAND_DATA_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= TS72XX_NAND_CONTROL_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_NAND1_CONTROL_PHYS_BASE),
+		.length		= TS72XX_NAND_CONTROL_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= TS72XX_NAND_BUSY_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_NAND1_BUSY_PHYS_BASE),
+		.length		= TS72XX_NAND_BUSY_SIZE,
+		.type		= MT_DEVICE,
+	}
+};
+
+static struct map_desc ts72xx_alternate_nand_io_desc[] __initdata = {
+	{
+		.virtual	= TS72XX_NAND_DATA_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_NAND2_DATA_PHYS_BASE),
+		.length		= TS72XX_NAND_DATA_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= TS72XX_NAND_CONTROL_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_NAND2_CONTROL_PHYS_BASE),
+		.length		= TS72XX_NAND_CONTROL_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= TS72XX_NAND_BUSY_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_NAND2_BUSY_PHYS_BASE),
+		.length		= TS72XX_NAND_BUSY_SIZE,
+		.type		= MT_DEVICE,
+	}
+};
+
+static void __init ts72xx_map_io(void)
+{
+	ep93xx_map_io();
+	iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
+
+	/*
+	 * The TS-7200 has NOR flash, the other models have NAND flash.
+	 */
+	if (!board_is_ts7200()) {
+		if (is_ts9420_installed()) {
+			iotable_init(ts72xx_alternate_nand_io_desc,
+				ARRAY_SIZE(ts72xx_alternate_nand_io_desc));
+		} else {
+			iotable_init(ts72xx_nand_io_desc,
+				ARRAY_SIZE(ts72xx_nand_io_desc));
+		}
+	}
+}
+
+static void __init ts72xx_init_machine(void)
+{
+	ep93xx_init_devices();
+	if (board_is_ts7200())
+		physmap_configure(TS72XX_NOR_PHYS_BASE, 0x01000000, 1, NULL);
+}
+
+MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
+	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+	.phys_io	= EP93XX_APB_PHYS_BASE,
+	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.map_io		= ts72xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.timer		= &ep93xx_timer,
+	.init_machine	= ts72xx_init_machine,
+MACHINE_END