[PATCH] ARM: OMAP: Add support for Amstrad Delta (E3) Videophone

This patch adds support for the Amstrad Delta (E3) Videophone. This is
an OMAP5910 based device, which you can find more details about at:

http://www.amstrad.com/products/emailers/e3.html
http://www.earth.li/~noodles/hardware-e3.html

Patch is against latest git://source.mvista.com/git/linux-omap-2.6 and
adds the bare minimum of support for the device; I have a handful of
other patches to sort out the NAND, LCD, keymap and USB but they all
depend on this one.
Signed-Off-By: Jonathan McDowell <noodles@earth.li>
Signed-Off-By: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/Kconfig

@@ -87,6 +87,13 @@ config MACH_NOKIA770
 	  Support for the Nokia 770 Internet Tablet. Say Y here if you
 	  have such a device.
 
+config MACH_AMS_DELTA
+	bool "Amstrad E3 (Delta)"
+	depends on ARCH_OMAP1 && ARCH_OMAP15XX
+	help
+	  Support for the Amstrad E3 (codename Delta) videophone. Say Y here
+	  if you have such a device.
+
 config MACH_OMAP_GENERIC
 	bool "Generic OMAP board"
 	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX)

arch/arm/mach-omap1/Makefile

@@ -22,6 +22,7 @@ obj-$(CONFIG_MACH_OMAP_H3)		+= board-h3.o
 obj-$(CONFIG_MACH_VOICEBLUE)		+= board-voiceblue.o
 obj-$(CONFIG_MACH_OMAP_PALMTE)		+= board-palmte.o
 obj-$(CONFIG_MACH_NOKIA770)		+= board-nokia770.o
+obj-$(CONFIG_MACH_AMS_DELTA)		+= board-ams-delta.o
 
 ifeq ($(CONFIG_ARCH_OMAP15XX),y)
 # Innovator-1510 FPGA

arch/arm/mach-omap1/board-ams-delta.c

+/*
+ * linux/arch/arm/mach-omap1/board-ams-delta.c
+ *
+ * Modified from board-generic.c
+ *
+ * Board specific inits for the Amstrad E3 (codename Delta) videophone
+ *
+ * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/board-ams-delta.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/usb.h>
+#include <asm/arch/board.h>
+#include <asm/arch/common.h>
+
+static u8 ams_delta_latch1_reg;
+static u16 ams_delta_latch2_reg;
+
+void ams_delta_latch1_write(u8 mask, u8 value)
+{
+	ams_delta_latch1_reg &= ~mask;
+	ams_delta_latch1_reg |= value;
+	*(volatile __u8 *) AMS_DELTA_LATCH1_VIRT = ams_delta_latch1_reg;
+}
+
+void ams_delta_latch2_write(u16 mask, u16 value)
+{
+	ams_delta_latch2_reg &= ~mask;
+	ams_delta_latch2_reg |= value;
+	*(volatile __u16 *) AMS_DELTA_LATCH2_VIRT = ams_delta_latch2_reg;
+}
+
+static void __init ams_delta_init_irq(void)
+{
+	omap1_init_common_hw();
+	omap_init_irq();
+	omap_gpio_init();
+}
+
+static struct map_desc ams_delta_io_desc[] __initdata = {
+	// AMS_DELTA_LATCH1
+	{
+		.virtual	= AMS_DELTA_LATCH1_VIRT,
+		.pfn		= __phys_to_pfn(AMS_DELTA_LATCH1_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	},
+	// AMS_DELTA_LATCH2
+	{
+		.virtual	= AMS_DELTA_LATCH2_VIRT,
+		.pfn		= __phys_to_pfn(AMS_DELTA_LATCH2_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	},
+	// AMS_DELTA_MODEM
+	{
+		.virtual	= AMS_DELTA_MODEM_VIRT,
+		.pfn		= __phys_to_pfn(AMS_DELTA_MODEM_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	}
+};
+
+static struct omap_uart_config ams_delta_uart_config __initdata = {
+	.enabled_uarts = 1,
+};
+
+static struct omap_board_config_kernel ams_delta_config[] = {
+	{ OMAP_TAG_UART,	&ams_delta_uart_config },
+};
+
+static void __init ams_delta_init(void)
+{
+	iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
+
+	omap_board_config = ams_delta_config;
+	omap_board_config_size = ARRAY_SIZE(ams_delta_config);
+	omap_serial_init();
+
+	/* Clear latch2 (NAND, LCD, modem enable) */
+	ams_delta_latch2_write(~0, 0);
+}
+
+static void __init ams_delta_map_io(void)
+{
+	omap1_map_common_io();
+}
+
+MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
+	/* Maintainer: Jonathan McDowell <noodles@earth.li> */
+	.phys_io	= 0xfff00000,
+	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
+	.boot_params	= 0x10000100,
+	.map_io		= ams_delta_map_io,
+	.init_irq	= ams_delta_init_irq,
+	.init_machine	= ams_delta_init,
+	.timer		= &omap_timer,
+MACHINE_END
+
+EXPORT_SYMBOL(ams_delta_latch1_write);
+EXPORT_SYMBOL(ams_delta_latch2_write);

include/asm-arm/arch-omap/board-ams-delta.h

+/*
+ * linux/include/asm-arm/arch-omap/board-ams-delta.h
+ *
+ * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 THE AUTHOR 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.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef __ASM_ARCH_OMAP_AMS_DELTA_H
+#define __ASM_ARCH_OMAP_AMS_DELTA_H
+
+#if defined (CONFIG_MACH_AMS_DELTA)
+
+#define AMS_DELTA_LATCH1_PHYS		0x01000000
+#define AMS_DELTA_LATCH1_VIRT		0xEA000000
+#define AMS_DELTA_MODEM_PHYS		0x04000000
+#define AMS_DELTA_MODEM_VIRT		0xEB000000
+#define AMS_DELTA_LATCH2_PHYS		0x08000000
+#define AMS_DELTA_LATCH2_VIRT		0xEC000000
+
+#define AMS_DELTA_LATCH1_LED_CAMERA	0x01
+#define AMS_DELTA_LATCH1_LED_ADVERT	0x02
+#define AMS_DELTA_LATCH1_LED_EMAIL	0x04
+#define AMS_DELTA_LATCH1_LED_HANDSFREE	0x08
+#define AMS_DELTA_LATCH1_LED_VOICEMAIL	0x10
+#define AMS_DELTA_LATCH1_LED_VOICE	0x20
+
+#define AMS_DELTA_LATCH2_LCD_VBLEN	0x0001
+#define AMS_DELTA_LATCH2_LCD_NDISP	0x0002
+#define AMS_DELTA_LATCH2_NAND_NCE	0x0004
+#define AMS_DELTA_LATCH2_NAND_NRE	0x0008
+#define AMS_DELTA_LATCH2_NAND_NWP	0x0010
+#define AMS_DELTA_LATCH2_NAND_NWE	0x0020
+#define AMS_DELTA_LATCH2_NAND_ALE	0x0040
+#define AMS_DELTA_LATCH2_NAND_CLE	0x0080
+#define AMS_DELTA_LATCH2_MODEM_NRESET	0x1000
+#define AMS_DELTA_LATCH2_MODEM_CODEC	0x2000
+
+#define AMS_DELTA_GPIO_PIN_NAND_RB	12
+
+#ifndef __ASSEMBLY__
+void ams_delta_latch1_write(u8 mask, u8 value);
+void ams_delta_latch2_write(u16 mask, u16 value);
+#endif
+
+#endif /* CONFIG_MACH_AMS_DELTA */
+
+#endif /* __ASM_ARCH_OMAP_AMS_DELTA_H */