ARM: 6597/1: Add basic architecture support for VIA/WonderMedia 85xx SoC's

This adds support for the family of Systems-on-Chip produced initially
by VIA and now its subsidiary WonderMedia that have recently become
widespread in lower-end Chinese ARM-based tablets and netbooks.

Support is included for both VT8500 and WM8505, selectable by a
configuration switch at kernel build time.

Included are basic machine initialization files, register and
interrupt definitions, support for the on-chip interrupt controller,
high-precision OS timer, GPIO lines, necessary macros for early debug,
pulse-width-modulated outputs control, as well as platform device
configurations for the specific drivers implemented elsewhere.

Signed-off-by: Alexey Charkov <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/Kconfig

···
 	help
 	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
 
+config ARCH_VT8500
+	bool "VIA/WonderMedia 85xx"
+	select CPU_ARM926T
+	select GENERIC_GPIO
+	select ARCH_HAS_CPUFREQ
+	select GENERIC_CLOCKEVENTS
+	select ARCH_REQUIRE_GPIOLIB
+	select HAVE_PWM
+	help
+	  Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
 endchoice
 
 #
···
 source "arch/arm/mach-versatile/Kconfig"
 
 source "arch/arm/mach-vexpress/Kconfig"
+
+source "arch/arm/mach-vt8500/Kconfig"
 
 source "arch/arm/mach-w90x900/Kconfig"
 

arch/arm/Makefile

···
 machine-$(CONFIG_ARCH_U8500)		:= ux500
 machine-$(CONFIG_ARCH_VERSATILE)	:= versatile
 machine-$(CONFIG_ARCH_VEXPRESS)		:= vexpress
+machine-$(CONFIG_ARCH_VT8500)		:= vt8500
 machine-$(CONFIG_ARCH_W90X900)		:= w90x900
 machine-$(CONFIG_ARCH_NUC93X)		:= nuc93x
 machine-$(CONFIG_FOOTBRIDGE)		:= footbridge

arch/arm/boot/compressed/Makefile

···
 OBJS		+= head-sa1100.o
 endif
 
+ifeq ($(CONFIG_ARCH_VT8500),y)
+OBJS		+= head-vt8500.o
+endif
+
 ifeq ($(CONFIG_CPU_XSCALE),y)
 OBJS		+= head-xscale.o
 endif

arch/arm/boot/compressed/head-vt8500.S

···
+/*
+ * linux/arch/arm/boot/compressed/head-vt8500.S
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * VIA VT8500 specific tweaks. This is merged into head.S by the linker.
+ *
+ */
+
+#include <linux/linkage.h>
+#include <asm/mach-types.h>
+
+		.section        ".start", "ax"
+
+__VT8500_start:
+	@ Compare the SCC ID register against a list of known values
+	ldr	r1, .SCCID
+	ldr	r3, [r1]
+
+	@ VT8500 override
+	ldr	r4, .VT8500SCC
+	cmp	r3, r4
+	ldreq	r7, .ID_BV07
+	beq	.Lendvt8500
+
+	@ WM8505 override
+	ldr	r4, .WM8505SCC
+	cmp	r3, r4
+	ldreq	r7, .ID_8505
+	beq	.Lendvt8500
+
+	@ Otherwise, leave the bootloader's machine id untouched
+
+.SCCID:
+	.word	0xd8120000
+.VT8500SCC:
+	.word	0x34000102
+.WM8505SCC:
+	.word	0x34260103
+
+.ID_BV07:
+	.word	MACH_TYPE_BV07
+.ID_8505:
+	.word	MACH_TYPE_WM8505_7IN_NETBOOK
+
+.Lendvt8500:

arch/arm/mach-vt8500/Kconfig

···
+if ARCH_VT8500
+
+config VTWM_VERSION_VT8500
+	bool
+
+config VTWM_VERSION_WM8505
+	bool
+
+config MACH_BV07
+	bool "Benign BV07-8500 Mini Netbook"
+	depends on ARCH_VT8500
+	select VTWM_VERSION_VT8500
+	help
+	  Add support for the inexpensive 7-inch netbooks sold by many
+	  Chinese distributors under various names. Note that there are
+	  many hardware implementations in identical exterior, make sure
+	  that yours is indeed based on a VIA VT8500 chip.
+
+config MACH_WM8505_7IN_NETBOOK
+	bool "WM8505 7-inch generic netbook"
+	depends on ARCH_VT8500
+	select VTWM_VERSION_WM8505
+	help
+	  Add support for the inexpensive 7-inch netbooks sold by many
+	  Chinese distributors under various names. Note that there are
+	  many hardware implementations in identical exterior, make sure
+	  that yours is indeed based on a WonderMedia WM8505 chip.
+
+comment "LCD panel size"
+
+config WMT_PANEL_800X480
+	bool "7-inch with 800x480 resolution"
+	depends on (FB_VT8500 || FB_WM8505)
+	default y
+	help
+	  These are found in most of the netbooks in generic cases, as
+	  well as in Eken M001 tablets and possibly elsewhere.
+
+	  To select this panel at runtime, say y here and append
+	  'panel=800x480' to your kernel command line. Otherwise, the
+	  largest one available will be used.
+
+config WMT_PANEL_800X600
+	bool "8-inch with 800x600 resolution"
+	depends on (FB_VT8500 || FB_WM8505)
+	help
+	  These are found in Eken M003 tablets and possibly elsewhere.
+
+	  To select this panel at runtime, say y here and append
+	  'panel=800x600' to your kernel command line. Otherwise, the
+	  largest one available will be used.
+
+config WMT_PANEL_1024X576
+	bool "10-inch with 1024x576 resolution"
+	depends on (FB_VT8500 || FB_WM8505)
+	help
+	  These are found in CherryPal netbooks and possibly elsewhere.
+
+	  To select this panel at runtime, say y here and append
+	  'panel=1024x576' to your kernel command line. Otherwise, the
+	  largest one available will be used.
+
+config WMT_PANEL_1024X600
+	bool "10-inch with 1024x600 resolution"
+	depends on (FB_VT8500 || FB_WM8505)
+	help
+	  These are found in Eken M006 tablets and possibly elsewhere.
+
+	  To select this panel at runtime, say y here and append
+	  'panel=1024x600' to your kernel command line. Otherwise, the
+	  largest one available will be used.
+
+endif

arch/arm/mach-vt8500/Makefile

···
+obj-y += devices.o gpio.o irq.o timer.o
+
+obj-$(CONFIG_VTWM_VERSION_VT8500) += devices-vt8500.o
+obj-$(CONFIG_VTWM_VERSION_WM8505) += devices-wm8505.o
+
+obj-$(CONFIG_MACH_BV07) += bv07.o
+obj-$(CONFIG_MACH_WM8505_7IN_NETBOOK) += wm8505_7in.o
+
+obj-$(CONFIG_HAVE_PWM) += pwm.o

arch/arm/mach-vt8500/Makefile.boot

···
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x01000000

arch/arm/mach-vt8500/bv07.c

···
+/*
+ *  arch/arm/mach-vt8500/bv07.c
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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 <linux/io.h>
+#include <linux/pm.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include "devices.h"
+
+static void __iomem *pmc_hiber;
+
+static struct platform_device *devices[] __initdata = {
+	&vt8500_device_uart0,
+	&vt8500_device_lcdc,
+	&vt8500_device_ehci,
+	&vt8500_device_ge_rops,
+	&vt8500_device_pwm,
+	&vt8500_device_pwmbl,
+	&vt8500_device_rtc,
+};
+
+static void vt8500_power_off(void)
+{
+	local_irq_disable();
+	writew(5, pmc_hiber);
+	asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0));
+}
+
+void __init bv07_init(void)
+{
+#ifdef CONFIG_FB_VT8500
+	void __iomem *gpio_mux_reg = ioremap(wmt_gpio_base + 0x200, 4);
+	if (gpio_mux_reg) {
+		writel(readl(gpio_mux_reg) | 1, gpio_mux_reg);
+		iounmap(gpio_mux_reg);
+	} else {
+		printk(KERN_ERR "Could not remap the GPIO mux register, display may not work properly!\n");
+	}
+#endif
+	pmc_hiber = ioremap(wmt_pmc_base + 0x12, 2);
+	if (pmc_hiber)
+		pm_power_off = &vt8500_power_off;
+	else
+		printk(KERN_ERR "PMC Hibernation register could not be remapped, not enabling power off!\n");
+
+	vt8500_set_resources();
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	vt8500_gpio_init();
+}
+
+MACHINE_START(BV07, "Benign BV07 Mini Netbook")
+	.boot_params	= 0x00000100,
+	.reserve	= vt8500_reserve_mem,
+	.map_io		= vt8500_map_io,
+	.init_irq	= vt8500_init_irq,
+	.timer		= &vt8500_timer,
+	.init_machine	= bv07_init,
+MACHINE_END

arch/arm/mach-vt8500/devices-vt8500.c

···
+/* linux/arch/arm/mach-vt8500/devices-vt8500.c
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/platform_device.h>
+
+#include <mach/vt8500_regs.h>
+#include <mach/vt8500_irqs.h>
+#include <mach/i8042.h>
+#include "devices.h"
+
+void __init vt8500_set_resources(void)
+{
+	struct resource tmp[3];
+
+	tmp[0] = wmt_mmio_res(VT8500_LCDC_BASE, SZ_1K);
+	tmp[1] = wmt_irq_res(IRQ_LCDC);
+	wmt_res_add(&vt8500_device_lcdc, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(VT8500_UART0_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART0);
+	wmt_res_add(&vt8500_device_uart0, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(VT8500_UART1_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART1);
+	wmt_res_add(&vt8500_device_uart1, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(VT8500_UART2_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART2);
+	wmt_res_add(&vt8500_device_uart2, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(VT8500_UART3_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART3);
+	wmt_res_add(&vt8500_device_uart3, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(VT8500_EHCI_BASE, SZ_512);
+	tmp[1] = wmt_irq_res(IRQ_EHCI);
+	wmt_res_add(&vt8500_device_ehci, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(VT8500_GEGEA_BASE, SZ_256);
+	wmt_res_add(&vt8500_device_ge_rops, tmp, 1);
+
+	tmp[0] = wmt_mmio_res(VT8500_PWM_BASE, 0x44);
+	wmt_res_add(&vt8500_device_pwm, tmp, 1);
+
+	tmp[0] = wmt_mmio_res(VT8500_RTC_BASE, 0x2c);
+	tmp[1] = wmt_irq_res(IRQ_RTC);
+	tmp[2] = wmt_irq_res(IRQ_RTCSM);
+	wmt_res_add(&vt8500_device_rtc, tmp, 3);
+}
+
+static void __init vt8500_set_externs(void)
+{
+	/* Non-resource-aware stuff */
+	wmt_ic_base = VT8500_IC_BASE;
+	wmt_gpio_base = VT8500_GPIO_BASE;
+	wmt_pmc_base = VT8500_PMC_BASE;
+	wmt_i8042_base = VT8500_PS2_BASE;
+
+	wmt_nr_irqs = VT8500_NR_IRQS;
+	wmt_timer_irq = IRQ_PMCOS0;
+	wmt_gpio_ext_irq[0] = IRQ_EXT0;
+	wmt_gpio_ext_irq[1] = IRQ_EXT1;
+	wmt_gpio_ext_irq[2] = IRQ_EXT2;
+	wmt_gpio_ext_irq[3] = IRQ_EXT3;
+	wmt_gpio_ext_irq[4] = IRQ_EXT4;
+	wmt_gpio_ext_irq[5] = IRQ_EXT5;
+	wmt_gpio_ext_irq[6] = IRQ_EXT6;
+	wmt_gpio_ext_irq[7] = IRQ_EXT7;
+	wmt_i8042_kbd_irq = IRQ_PS2KBD;
+	wmt_i8042_aux_irq = IRQ_PS2MOUSE;
+}
+
+void __init vt8500_map_io(void)
+{
+	iotable_init(wmt_io_desc, ARRAY_SIZE(wmt_io_desc));
+
+	/* Should be done before interrupts and timers are initialized */
+	vt8500_set_externs();
+}

arch/arm/mach-vt8500/devices-wm8505.c

···
+/* linux/arch/arm/mach-vt8500/devices-wm8505.c
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/platform_device.h>
+
+#include <mach/wm8505_regs.h>
+#include <mach/wm8505_irqs.h>
+#include <mach/i8042.h>
+#include "devices.h"
+
+void __init wm8505_set_resources(void)
+{
+	struct resource tmp[3];
+
+	tmp[0] = wmt_mmio_res(WM8505_GOVR_BASE, SZ_512);
+	wmt_res_add(&vt8500_device_wm8505_fb, tmp, 1);
+
+	tmp[0] = wmt_mmio_res(WM8505_UART0_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART0);
+	wmt_res_add(&vt8500_device_uart0, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_UART1_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART1);
+	wmt_res_add(&vt8500_device_uart1, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_UART2_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART2);
+	wmt_res_add(&vt8500_device_uart2, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_UART3_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART3);
+	wmt_res_add(&vt8500_device_uart3, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_UART4_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART4);
+	wmt_res_add(&vt8500_device_uart4, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_UART5_BASE, 0x1040);
+	tmp[1] = wmt_irq_res(IRQ_UART5);
+	wmt_res_add(&vt8500_device_uart5, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_EHCI_BASE, SZ_512);
+	tmp[1] = wmt_irq_res(IRQ_EHCI);
+	wmt_res_add(&vt8500_device_ehci, tmp, 2);
+
+	tmp[0] = wmt_mmio_res(WM8505_GEGEA_BASE, SZ_256);
+	wmt_res_add(&vt8500_device_ge_rops, tmp, 1);
+
+	tmp[0] = wmt_mmio_res(WM8505_PWM_BASE, 0x44);
+	wmt_res_add(&vt8500_device_pwm, tmp, 1);
+
+	tmp[0] = wmt_mmio_res(WM8505_RTC_BASE, 0x2c);
+	tmp[1] = wmt_irq_res(IRQ_RTC);
+	tmp[2] = wmt_irq_res(IRQ_RTCSM);
+	wmt_res_add(&vt8500_device_rtc, tmp, 3);
+}
+
+static void __init wm8505_set_externs(void)
+{
+	/* Non-resource-aware stuff */
+	wmt_ic_base = WM8505_IC_BASE;
+	wmt_sic_base = WM8505_SIC_BASE;
+	wmt_gpio_base = WM8505_GPIO_BASE;
+	wmt_pmc_base = WM8505_PMC_BASE;
+	wmt_i8042_base = WM8505_PS2_BASE;
+
+	wmt_nr_irqs = WM8505_NR_IRQS;
+	wmt_timer_irq = IRQ_PMCOS0;
+	wmt_gpio_ext_irq[0] = IRQ_EXT0;
+	wmt_gpio_ext_irq[1] = IRQ_EXT1;
+	wmt_gpio_ext_irq[2] = IRQ_EXT2;
+	wmt_gpio_ext_irq[3] = IRQ_EXT3;
+	wmt_gpio_ext_irq[4] = IRQ_EXT4;
+	wmt_gpio_ext_irq[5] = IRQ_EXT5;
+	wmt_gpio_ext_irq[6] = IRQ_EXT6;
+	wmt_gpio_ext_irq[7] = IRQ_EXT7;
+	wmt_i8042_kbd_irq = IRQ_PS2KBD;
+	wmt_i8042_aux_irq = IRQ_PS2MOUSE;
+}
+
+void __init wm8505_map_io(void)
+{
+	iotable_init(wmt_io_desc, ARRAY_SIZE(wmt_io_desc));
+
+	/* Should be done before interrupts and timers are initialized */
+	wm8505_set_externs();
+}

arch/arm/mach-vt8500/devices.c

···
+/* linux/arch/arm/mach-vt8500/devices.c
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/pwm_backlight.h>
+#include <linux/memblock.h>
+
+#include <asm/mach/arch.h>
+
+#include <mach/vt8500fb.h>
+#include <mach/i8042.h>
+#include "devices.h"
+
+/* These can't use resources currently */
+unsigned long wmt_ic_base __initdata;
+unsigned long wmt_sic_base __initdata;
+unsigned long wmt_gpio_base __initdata;
+unsigned long wmt_pmc_base __initdata;
+unsigned long wmt_i8042_base __initdata;
+
+int wmt_nr_irqs __initdata;
+int wmt_timer_irq __initdata;
+int wmt_gpio_ext_irq[8] __initdata;
+
+/* Should remain accessible after init.
+ * i8042 driver desperately calls for attention...
+ */
+int wmt_i8042_kbd_irq;
+int wmt_i8042_aux_irq;
+
+static u64 fb_dma_mask = DMA_BIT_MASK(32);
+
+struct platform_device vt8500_device_lcdc = {
+	.name           = "vt8500-lcd",
+	.id             = 0,
+	.dev		= {
+		.dma_mask	= &fb_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+struct platform_device vt8500_device_wm8505_fb = {
+	.name           = "wm8505-fb",
+	.id             = 0,
+};
+
+/* Smallest to largest */
+static struct vt8500fb_platform_data panels[] = {
+#ifdef CONFIG_WMT_PANEL_800X480
+{
+	.xres_virtual	= 800,
+	.yres_virtual	= 480 * 2,
+	.mode		= {
+		.name		= "800x480",
+		.xres		= 800,
+		.yres		= 480,
+		.left_margin	= 88,
+		.right_margin	= 40,
+		.upper_margin	= 32,
+		.lower_margin	= 11,
+		.hsync_len	= 0,
+		.vsync_len	= 1,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+},
+#endif
+#ifdef CONFIG_WMT_PANEL_800X600
+{
+	.xres_virtual	= 800,
+	.yres_virtual	= 600 * 2,
+	.mode		= {
+		.name		= "800x600",
+		.xres		= 800,
+		.yres		= 600,
+		.left_margin	= 88,
+		.right_margin	= 40,
+		.upper_margin	= 32,
+		.lower_margin	= 11,
+		.hsync_len	= 0,
+		.vsync_len	= 1,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+},
+#endif
+#ifdef CONFIG_WMT_PANEL_1024X576
+{
+	.xres_virtual	= 1024,
+	.yres_virtual	= 576 * 2,
+	.mode		= {
+		.name		= "1024x576",
+		.xres		= 1024,
+		.yres		= 576,
+		.left_margin	= 40,
+		.right_margin	= 24,
+		.upper_margin	= 32,
+		.lower_margin	= 11,
+		.hsync_len	= 96,
+		.vsync_len	= 2,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+},
+#endif
+#ifdef CONFIG_WMT_PANEL_1024X600
+{
+	.xres_virtual	= 1024,
+	.yres_virtual	= 600 * 2,
+	.mode		= {
+		.name		= "1024x600",
+		.xres		= 1024,
+		.yres		= 600,
+		.left_margin	= 66,
+		.right_margin	= 2,
+		.upper_margin	= 19,
+		.lower_margin	= 1,
+		.hsync_len	= 23,
+		.vsync_len	= 8,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+},
+#endif
+};
+
+static int current_panel_idx __initdata = ARRAY_SIZE(panels) - 1;
+
+static int __init panel_setup(char *str)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(panels); i++) {
+		if (strcmp(panels[i].mode.name, str) == 0) {
+			current_panel_idx = i;
+			break;
+		}
+	}
+	return 0;
+}
+
+early_param("panel", panel_setup);
+
+static inline void preallocate_fb(struct vt8500fb_platform_data *p,
+				  unsigned long align) {
+	p->video_mem_len = (p->xres_virtual * p->yres_virtual * 4) >>
+			(p->bpp > 16 ? 0 : (p->bpp > 8 ? 1 :
+					(8 / p->bpp) + 1));
+	p->video_mem_phys = (unsigned long)memblock_alloc(p->video_mem_len,
+							  align);
+	p->video_mem_virt = phys_to_virt(p->video_mem_phys);
+}
+
+struct platform_device vt8500_device_uart0 = {
+	.name		= "vt8500_serial",
+	.id		= 0,
+};
+
+struct platform_device vt8500_device_uart1 = {
+	.name		= "vt8500_serial",
+	.id		= 1,
+};
+
+struct platform_device vt8500_device_uart2 = {
+	.name		= "vt8500_serial",
+	.id		= 2,
+};
+
+struct platform_device vt8500_device_uart3 = {
+	.name		= "vt8500_serial",
+	.id		= 3,
+};
+
+struct platform_device vt8500_device_uart4 = {
+	.name		= "vt8500_serial",
+	.id		= 4,
+};
+
+struct platform_device vt8500_device_uart5 = {
+	.name		= "vt8500_serial",
+	.id		= 5,
+};
+
+static u64 ehci_dma_mask = DMA_BIT_MASK(32);
+
+struct platform_device vt8500_device_ehci = {
+	.name		= "vt8500-ehci",
+	.id		= 0,
+	.dev		= {
+		.dma_mask	= &ehci_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+struct platform_device vt8500_device_ge_rops = {
+	.name		= "wmt_ge_rops",
+	.id		= -1,
+};
+
+struct platform_device vt8500_device_pwm = {
+	.name		= "vt8500-pwm",
+	.id		= 0,
+};
+
+static struct platform_pwm_backlight_data vt8500_pwmbl_data = {
+	.pwm_id		= 0,
+	.max_brightness	= 128,
+	.dft_brightness = 70,
+	.pwm_period_ns	= 250000, /* revisit when clocks are implemented */
+};
+
+struct platform_device vt8500_device_pwmbl = {
+	.name		= "pwm-backlight",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &vt8500_pwmbl_data,
+	},
+};
+
+struct platform_device vt8500_device_rtc = {
+	.name		= "vt8500-rtc",
+	.id		= 0,
+};
+
+struct map_desc wmt_io_desc[] __initdata = {
+	/* SoC MMIO registers */
+	[0] = {
+		.virtual	= 0xf8000000,
+		.pfn		= __phys_to_pfn(0xd8000000),
+		.length		= 0x00390000, /* max of all chip variants */
+		.type		= MT_DEVICE
+	},
+	/* PCI I/O space, numbers tied to those in <mach/io.h> */
+	[1] = {
+		.virtual	= 0xf0000000,
+		.pfn		= __phys_to_pfn(0xc0000000),
+		.length		= SZ_64K,
+		.type		= MT_DEVICE
+	},
+};
+
+void __init vt8500_reserve_mem(void)
+{
+#ifdef CONFIG_FB_VT8500
+	panels[current_panel_idx].bpp = 16; /* Always use RGB565 */
+	preallocate_fb(&panels[current_panel_idx], SZ_4M);
+	vt8500_device_lcdc.dev.platform_data = &panels[current_panel_idx];
+#endif
+}
+
+void __init wm8505_reserve_mem(void)
+{
+#if defined CONFIG_FB_WM8505
+	panels[current_panel_idx].bpp = 32; /* Always use RGB888 */
+	preallocate_fb(&panels[current_panel_idx], 32);
+	vt8500_device_wm8505_fb.dev.platform_data = &panels[current_panel_idx];
+#endif
+}

arch/arm/mach-vt8500/devices.h

···
+/* linux/arch/arm/mach-vt8500/devices.h
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef __ARCH_ARM_MACH_VT8500_DEVICES_H
+#define __ARCH_ARM_MACH_VT8500_DEVICES_H
+
+#include <linux/platform_device.h>
+#include <asm/mach/map.h>
+
+void __init vt8500_init_irq(void);
+void __init wm8505_init_irq(void);
+void __init vt8500_map_io(void);
+void __init wm8505_map_io(void);
+void __init vt8500_reserve_mem(void);
+void __init wm8505_reserve_mem(void);
+void __init vt8500_gpio_init(void);
+void __init vt8500_set_resources(void);
+void __init wm8505_set_resources(void);
+
+extern unsigned long wmt_ic_base __initdata;
+extern unsigned long wmt_sic_base __initdata;
+extern unsigned long wmt_gpio_base __initdata;
+extern unsigned long wmt_pmc_base __initdata;
+
+extern int wmt_nr_irqs __initdata;
+extern int wmt_timer_irq __initdata;
+extern int wmt_gpio_ext_irq[8] __initdata;
+
+extern struct map_desc wmt_io_desc[2] __initdata;
+
+static inline struct resource wmt_mmio_res(u32 start, u32 size)
+{
+	struct resource tmp = {
+		.flags = IORESOURCE_MEM,
+		.start = start,
+		.end = start + size - 1,
+	};
+
+	return tmp;
+}
+
+static inline struct resource wmt_irq_res(int irq)
+{
+	struct resource tmp = {
+		.flags = IORESOURCE_IRQ,
+		.start = irq,
+		.end = irq,
+	};
+
+	return tmp;
+}
+
+static inline void wmt_res_add(struct platform_device *pdev,
+			       const struct resource *res, unsigned int num)
+{
+	if (unlikely(platform_device_add_resources(pdev, res, num)))
+		pr_err("Failed to assign resources\n");
+}
+
+extern struct sys_timer vt8500_timer;
+
+extern struct platform_device vt8500_device_uart0;
+extern struct platform_device vt8500_device_uart1;
+extern struct platform_device vt8500_device_uart2;
+extern struct platform_device vt8500_device_uart3;
+extern struct platform_device vt8500_device_uart4;
+extern struct platform_device vt8500_device_uart5;
+
+extern struct platform_device vt8500_device_lcdc;
+extern struct platform_device vt8500_device_wm8505_fb;
+extern struct platform_device vt8500_device_ehci;
+extern struct platform_device vt8500_device_ge_rops;
+extern struct platform_device vt8500_device_pwm;
+extern struct platform_device vt8500_device_pwmbl;
+extern struct platform_device vt8500_device_rtc;
+#endif

arch/arm/mach-vt8500/gpio.c

···
+/* linux/arch/arm/mach-vt8500/gpio.c
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include "devices.h"
+
+#define to_vt8500(__chip) container_of(__chip, struct vt8500_gpio_chip, chip)
+
+#define ENABLE_REGS	0x0
+#define DIRECTION_REGS	0x20
+#define OUTVALUE_REGS	0x40
+#define INVALUE_REGS	0x60
+
+#define EXT_REGOFF	0x1c
+
+static void __iomem *regbase;
+
+struct vt8500_gpio_chip {
+	struct gpio_chip	chip;
+	unsigned int		shift;
+	unsigned int		regoff;
+};
+
+static int gpio_to_irq_map[8];
+
+static int vt8500_muxed_gpio_request(struct gpio_chip *chip,
+				     unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+	unsigned val = readl(regbase + ENABLE_REGS + vt8500_chip->regoff);
+
+	val |= (1 << vt8500_chip->shift << offset);
+	writel(val, regbase + ENABLE_REGS + vt8500_chip->regoff);
+
+	return 0;
+}
+
+static void vt8500_muxed_gpio_free(struct gpio_chip *chip,
+				   unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+	unsigned val = readl(regbase + ENABLE_REGS + vt8500_chip->regoff);
+
+	val &= ~(1 << vt8500_chip->shift << offset);
+	writel(val, regbase + ENABLE_REGS + vt8500_chip->regoff);
+}
+
+static int vt8500_muxed_gpio_direction_input(struct gpio_chip *chip,
+				       unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+	unsigned val = readl(regbase + DIRECTION_REGS + vt8500_chip->regoff);
+
+	val &= ~(1 << vt8500_chip->shift << offset);
+	writel(val, regbase + DIRECTION_REGS + vt8500_chip->regoff);
+
+	return 0;
+}
+
+static int vt8500_muxed_gpio_direction_output(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+	unsigned val = readl(regbase + DIRECTION_REGS + vt8500_chip->regoff);
+
+	val |= (1 << vt8500_chip->shift << offset);
+	writel(val, regbase + DIRECTION_REGS + vt8500_chip->regoff);
+
+	if (value) {
+		val = readl(regbase + OUTVALUE_REGS + vt8500_chip->regoff);
+		val |= (1 << vt8500_chip->shift << offset);
+		writel(val, regbase + OUTVALUE_REGS + vt8500_chip->regoff);
+	}
+	return 0;
+}
+
+static int vt8500_muxed_gpio_get_value(struct gpio_chip *chip,
+				       unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+
+	return (readl(regbase + INVALUE_REGS + vt8500_chip->regoff)
+		>> vt8500_chip->shift >> offset) & 1;
+}
+
+static void vt8500_muxed_gpio_set_value(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+	unsigned val = readl(regbase + INVALUE_REGS + vt8500_chip->regoff);
+
+	if (value)
+		val |= (1 << vt8500_chip->shift << offset);
+	else
+		val &= ~(1 << vt8500_chip->shift << offset);
+
+	writel(val, regbase + INVALUE_REGS + vt8500_chip->regoff);
+}
+
+#define VT8500_GPIO_BANK(__name, __shift, __off, __base, __num)		\
+{									\
+	.chip = {							\
+		.label			= __name,			\
+		.request		= vt8500_muxed_gpio_request,	\
+		.free			= vt8500_muxed_gpio_free,	\
+		.direction_input  = vt8500_muxed_gpio_direction_input,	\
+		.direction_output = vt8500_muxed_gpio_direction_output,	\
+		.get			= vt8500_muxed_gpio_get_value,	\
+		.set			= vt8500_muxed_gpio_set_value,	\
+		.can_sleep		= 0,				\
+		.base			= __base,			\
+		.ngpio			= __num,			\
+	},								\
+	.shift		= __shift,					\
+	.regoff		= __off,					\
+}
+
+static struct vt8500_gpio_chip vt8500_muxed_gpios[] = {
+	VT8500_GPIO_BANK("uart0",	0,	0x0,	8,	4),
+	VT8500_GPIO_BANK("uart1",	4,	0x0,	12,	4),
+	VT8500_GPIO_BANK("spi0",	8,	0x0,	16,	4),
+	VT8500_GPIO_BANK("spi1",	12,	0x0,	20,	4),
+	VT8500_GPIO_BANK("spi2",	16,	0x0,	24,	4),
+	VT8500_GPIO_BANK("pwmout",	24,	0x0,	28,	2),
+
+	VT8500_GPIO_BANK("sdmmc",	0,	0x4,	30,	11),
+	VT8500_GPIO_BANK("ms",		16,	0x4,	41,	7),
+	VT8500_GPIO_BANK("i2c0",	24,	0x4,	48,	2),
+	VT8500_GPIO_BANK("i2c1",	26,	0x4,	50,	2),
+
+	VT8500_GPIO_BANK("mii",		0,	0x8,	52,	20),
+	VT8500_GPIO_BANK("see",		20,	0x8,	72,	4),
+	VT8500_GPIO_BANK("ide",		24,	0x8,	76,	7),
+
+	VT8500_GPIO_BANK("ccir",	0,	0xc,	83,	19),
+
+	VT8500_GPIO_BANK("ts",		8,	0x10,	102,	11),
+
+	VT8500_GPIO_BANK("lcd",		0,	0x14,	113,	23),
+};
+
+static int vt8500_gpio_direction_input(struct gpio_chip *chip,
+				       unsigned offset)
+{
+	unsigned val = readl(regbase + DIRECTION_REGS + EXT_REGOFF);
+
+	val &= ~(1 << offset);
+	writel(val, regbase + DIRECTION_REGS + EXT_REGOFF);
+	return 0;
+}
+
+static int vt8500_gpio_direction_output(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	unsigned val = readl(regbase + DIRECTION_REGS + EXT_REGOFF);
+
+	val |= (1 << offset);
+	writel(val, regbase + DIRECTION_REGS + EXT_REGOFF);
+
+	if (value) {
+		val = readl(regbase + OUTVALUE_REGS + EXT_REGOFF);
+		val |= (1 << offset);
+		writel(val, regbase + OUTVALUE_REGS + EXT_REGOFF);
+	}
+	return 0;
+}
+
+static int vt8500_gpio_get_value(struct gpio_chip *chip,
+				       unsigned offset)
+{
+	return (readl(regbase + INVALUE_REGS + EXT_REGOFF) >> offset) & 1;
+}
+
+static void vt8500_gpio_set_value(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	unsigned val = readl(regbase + OUTVALUE_REGS + EXT_REGOFF);
+
+	if (value)
+		val |= (1 << offset);
+	else
+		val &= ~(1 << offset);
+
+	writel(val, regbase + OUTVALUE_REGS + EXT_REGOFF);
+}
+
+static int vt8500_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	if (offset > 7)
+		return -EINVAL;
+
+	return gpio_to_irq_map[offset];
+}
+
+static struct gpio_chip vt8500_external_gpios = {
+	.label			= "extgpio",
+	.direction_input	= vt8500_gpio_direction_input,
+	.direction_output	= vt8500_gpio_direction_output,
+	.get			= vt8500_gpio_get_value,
+	.set			= vt8500_gpio_set_value,
+	.to_irq			= vt8500_gpio_to_irq,
+	.can_sleep		= 0,
+	.base			= 0,
+	.ngpio			= 8,
+};
+
+void __init vt8500_gpio_init(void)
+{
+	int i;
+
+	for (i = 0; i < 8; i++)
+		gpio_to_irq_map[i] = wmt_gpio_ext_irq[i];
+
+	regbase = ioremap(wmt_gpio_base, SZ_64K);
+	if (!regbase) {
+		printk(KERN_ERR "Failed to map MMIO registers for GPIO\n");
+		return;
+	}
+
+	gpiochip_add(&vt8500_external_gpios);
+
+	for (i = 0; i < ARRAY_SIZE(vt8500_muxed_gpios); i++)
+		gpiochip_add(&vt8500_muxed_gpios[i].chip);
+}

arch/arm/mach-vt8500/include/mach/debug-macro.S

···
+/*
+ * arch/arm/mach-vt8500/include/mach/debug-macro.S
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * Debugging macro include header
+ *
+ * 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.
+ *
+*/
+
+	.macro	addruart, rp, rv
+	mov	\rp,      #0x00200000
+	orr	\rv, \rp, #0xf8000000
+	orr	\rp, \rp, #0xd8000000
+	.endm
+
+	.macro	senduart,rd,rx
+	strb	\rd, [\rx, #0]
+	.endm
+
+	.macro	busyuart,rd,rx
+1001:	ldr	\rd, [\rx, #0x1c]
+	ands	\rd, \rd, #0x2
+	bne	1001b
+	.endm
+
+	.macro	waituart,rd,rx
+	.endm

arch/arm/mach-vt8500/include/mach/entry-macro.S

···
+/*
+ * arch/arm/mach-vt8500/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for VIA VT8500
+ *
+ * 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.
+ */
+
+	.macro	disable_fiq
+	.endm
+
+	.macro  get_irqnr_preamble, base, tmp
+	@ physical 0xd8140000 is virtual 0xf8140000
+	mov	\base, #0xf8000000
+	orr	\base, \base, #0x00140000
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+	ldr	\irqnr, [\base]
+	cmp	\irqnr, #63 @ may be false positive, check interrupt status
+	bne	1001f
+	ldr	\irqstat, [\base, #0x84]
+	ands	\irqstat, #0x80000000
+	moveq	\irqnr, #0
+1001:
+	.endm
+

arch/arm/mach-vt8500/include/mach/gpio.h

···
+#include <asm-generic/gpio.h>
+
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+#define gpio_to_irq	__gpio_to_irq

arch/arm/mach-vt8500/include/mach/hardware.h

···
+/* arch/arm/mach-vt8500/include/mach/hardware.h
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */

arch/arm/mach-vt8500/include/mach/i8042.h

···
+/* arch/arm/mach-vt8500/include/mach/i8042.h
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+extern unsigned long wmt_i8042_base __initdata;
+extern int wmt_i8042_kbd_irq;
+extern int wmt_i8042_aux_irq;

arch/arm/mach-vt8500/include/mach/io.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/io.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov
+ *
+ * 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 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
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffff
+
+#define __io(a)		__typesafe_io((a) + 0xf0000000)
+#define __mem_pci(a)	(a)
+
+#endif

arch/arm/mach-vt8500/include/mach/irqs.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/irqs.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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
+ */
+
+/* This value is just to make the core happy, never used otherwise */
+#define NR_IRQS 128

arch/arm/mach-vt8500/include/mach/memory.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/memory.h
+ *
+ *  Copyright (C) 2003 ARM Limited
+ *
+ * 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 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
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET	UL(0x00000000)
+
+#endif

arch/arm/mach-vt8500/include/mach/system.h

···
+/*
+ * arch/arm/mach-vt8500/include/mach/system.h
+ *
+ */
+#include <asm/io.h>
+
+/* PM Software Reset request register */
+#define VT8500_PMSR_VIRT	0xf8130060
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode, const char *cmd)
+{
+	writel(1, VT8500_PMSR_VIRT);
+}

arch/arm/mach-vt8500/include/mach/timex.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/timex.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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
+ */
+
+#ifndef MACH_TIMEX_H
+#define MACH_TIMEX_H
+
+#define CLOCK_TICK_RATE		(3000000)
+
+#endif /* MACH_TIMEX_H */

arch/arm/mach-vt8500/include/mach/uncompress.h

···
+/* arch/arm/mach-vt8500/include/mach/uncompress.h
+ *
+ * Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * Based on arch/arm/mach-dove/include/mach/uncompress.h
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#define UART0_PHYS 0xd8200000
+#include <asm/io.h>
+
+static void putc(const char c)
+{
+	while (readb(UART0_PHYS + 0x1c) & 0x2)
+		/* Tx busy, wait and poll */;
+
+	writeb(c, UART0_PHYS);
+}
+
+static void flush(void)
+{
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()

arch/arm/mach-vt8500/include/mach/vmalloc.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/vmalloc.h
+ *
+ *  Copyright (C) 2000 Russell King.
+ *
+ * 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 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
+ */
+#define VMALLOC_END	0xd0000000UL

arch/arm/mach-vt8500/include/mach/vt8500_irqs.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/vt8500_irqs.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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
+ */
+
+/* VT8500 Interrupt Sources */
+
+#define IRQ_JPEGENC	0	/* JPEG Encoder */
+#define IRQ_JPEGDEC	1	/* JPEG Decoder */
+				/* Reserved */
+#define IRQ_PATA	3	/* PATA Controller */
+				/* Reserved */
+#define IRQ_DMA		5	/* DMA Controller */
+#define IRQ_EXT0	6	/* External Interrupt 0 */
+#define IRQ_EXT1	7	/* External Interrupt 1 */
+#define IRQ_GE		8	/* Graphic Engine */
+#define IRQ_GOV		9	/* Graphic Overlay Engine */
+#define IRQ_ETHER	10	/* Ethernet MAC */
+#define IRQ_MPEGTS	11	/* Transport Stream Interface */
+#define IRQ_LCDC	12	/* LCD Controller */
+#define IRQ_EXT2	13	/* External Interrupt 2 */
+#define IRQ_EXT3	14	/* External Interrupt 3 */
+#define IRQ_EXT4	15	/* External Interrupt 4 */
+#define IRQ_CIPHER	16	/* Cipher */
+#define IRQ_VPP		17	/* Video Post-Processor */
+#define IRQ_I2C1	18	/* I2C 1 */
+#define IRQ_I2C0	19	/* I2C 0 */
+#define IRQ_SDMMC	20	/* SD/MMC Controller */
+#define IRQ_SDMMC_DMA	21	/* SD/MMC Controller DMA */
+#define IRQ_PMC_WU	22	/* Power Management Controller Wakeup */
+				/* Reserved */
+#define IRQ_SPI0	24	/* SPI 0 */
+#define IRQ_SPI1	25	/* SPI 1 */
+#define IRQ_SPI2	26	/* SPI 2 */
+#define IRQ_LCDDF	27	/* LCD Data Formatter */
+#define IRQ_NAND	28	/* NAND Flash Controller */
+#define IRQ_NAND_DMA	29	/* NAND Flash Controller DMA */
+#define IRQ_MS		30	/* MemoryStick Controller */
+#define IRQ_MS_DMA	31	/* MemoryStick Controller DMA */
+#define IRQ_UART0	32	/* UART 0 */
+#define IRQ_UART1	33	/* UART 1 */
+#define IRQ_I2S		34	/* I2S */
+#define IRQ_PCM		35	/* PCM */
+#define IRQ_PMCOS0	36	/* PMC OS Timer 0 */
+#define IRQ_PMCOS1	37	/* PMC OS Timer 1 */
+#define IRQ_PMCOS2	38	/* PMC OS Timer 2 */
+#define IRQ_PMCOS3	39	/* PMC OS Timer 3 */
+#define IRQ_VPU		40	/* Video Processing Unit */
+#define IRQ_VID		41	/* Video Digital Input Interface */
+#define IRQ_AC97	42	/* AC97 Interface */
+#define IRQ_EHCI	43	/* USB */
+#define IRQ_NOR		44	/* NOR Flash Controller */
+#define IRQ_PS2MOUSE	45	/* PS/2 Mouse */
+#define IRQ_PS2KBD	46	/* PS/2 Keyboard */
+#define IRQ_UART2	47	/* UART 2 */
+#define IRQ_RTC		48	/* RTC Interrupt */
+#define IRQ_RTCSM	49	/* RTC Second/Minute Update Interrupt */
+#define IRQ_UART3	50	/* UART 3 */
+#define IRQ_ADC		51	/* ADC */
+#define IRQ_EXT5	52	/* External Interrupt 5 */
+#define IRQ_EXT6	53	/* External Interrupt 6 */
+#define IRQ_EXT7	54	/* External Interrupt 7 */
+#define IRQ_CIR		55	/* CIR */
+#define IRQ_DMA0	56	/* DMA Channel 0 */
+#define IRQ_DMA1	57	/* DMA Channel 1 */
+#define IRQ_DMA2	58	/* DMA Channel 2 */
+#define IRQ_DMA3	59	/* DMA Channel 3 */
+#define IRQ_DMA4	60	/* DMA Channel 4 */
+#define IRQ_DMA5	61	/* DMA Channel 5 */
+#define IRQ_DMA6	62	/* DMA Channel 6 */
+#define IRQ_DMA7	63	/* DMA Channel 7 */
+
+#define VT8500_NR_IRQS		64

arch/arm/mach-vt8500/include/mach/vt8500_regs.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/vt8500_regs.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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
+ */
+#ifndef __ASM_ARM_ARCH_VT8500_REGS_H
+#define __ASM_ARM_ARCH_VT8500_REGS_H
+
+/* VT8500 Registers Map */
+
+#define VT8500_REGS_START_PHYS	0xd8000000	/* Start of MMIO registers */
+#define VT8500_REGS_START_VIRT	0xf8000000	/* Virtual mapping start */
+
+#define VT8500_DDR_BASE		0xd8000000	/* 1k	DDR/DDR2 Memory
+							Controller */
+#define VT8500_DMA_BASE		0xd8001000	/* 1k	DMA Controller */
+#define VT8500_SFLASH_BASE	0xd8002000	/* 1k	Serial Flash Memory
+							Controller */
+#define VT8500_ETHER_BASE	0xd8004000	/* 1k	Ethernet MAC 0 */
+#define VT8500_CIPHER_BASE	0xd8006000	/* 4k	Cipher */
+#define VT8500_USB_BASE		0xd8007800	/* 2k	USB OTG */
+# define VT8500_EHCI_BASE	0xd8007900	/*	EHCI */
+# define VT8500_UHCI_BASE	0xd8007b01	/*	UHCI */
+#define VT8500_PATA_BASE	0xd8008000	/* 512	PATA */
+#define VT8500_PS2_BASE		0xd8008800	/* 1k	PS/2 */
+#define VT8500_NAND_BASE	0xd8009000	/* 1k	NAND Controller */
+#define VT8500_NOR_BASE		0xd8009400	/* 1k	NOR Controller */
+#define VT8500_SDMMC_BASE	0xd800a000	/* 1k	SD/MMC Controller */
+#define VT8500_MS_BASE		0xd800b000	/* 1k	MS/MSPRO Controller */
+#define VT8500_LCDC_BASE	0xd800e400	/* 1k	LCD Controller */
+#define VT8500_VPU_BASE		0xd8050000	/* 256	VPU */
+#define VT8500_GOV_BASE		0xd8050300	/* 256	GOV */
+#define VT8500_GEGEA_BASE	0xd8050400	/* 768	GE/GE Alpha Mixing */
+#define VT8500_LCDF_BASE	0xd8050900	/* 256	LCD Formatter */
+#define VT8500_VID_BASE		0xd8050a00	/* 256	VID */
+#define VT8500_VPP_BASE		0xd8050b00	/* 256	VPP */
+#define VT8500_TSBK_BASE	0xd80f4000	/* 4k	TSBK */
+#define VT8500_JPEGDEC_BASE	0xd80fe000	/* 4k	JPEG Decoder */
+#define VT8500_JPEGENC_BASE	0xd80ff000	/* 4k	JPEG Encoder */
+#define VT8500_RTC_BASE		0xd8100000	/* 64k	RTC */
+#define VT8500_GPIO_BASE	0xd8110000	/* 64k	GPIO Configuration */
+#define VT8500_SCC_BASE		0xd8120000	/* 64k	System Configuration*/
+#define VT8500_PMC_BASE		0xd8130000	/* 64k	PMC Configuration */
+#define VT8500_IC_BASE		0xd8140000	/* 64k	Interrupt Controller*/
+#define VT8500_UART0_BASE	0xd8200000	/* 64k	UART 0 */
+#define VT8500_UART2_BASE	0xd8210000	/* 64k	UART 2 */
+#define VT8500_PWM_BASE		0xd8220000	/* 64k	PWM Configuration */
+#define VT8500_SPI0_BASE	0xd8240000	/* 64k	SPI 0 */
+#define VT8500_SPI1_BASE	0xd8250000	/* 64k	SPI 1 */
+#define VT8500_CIR_BASE		0xd8270000	/* 64k	CIR */
+#define VT8500_I2C0_BASE	0xd8280000	/* 64k	I2C 0 */
+#define VT8500_AC97_BASE	0xd8290000	/* 64k	AC97 */
+#define VT8500_SPI2_BASE	0xd82a0000	/* 64k	SPI 2 */
+#define VT8500_UART1_BASE	0xd82b0000	/* 64k	UART 1 */
+#define VT8500_UART3_BASE	0xd82c0000	/* 64k	UART 3 */
+#define VT8500_PCM_BASE		0xd82d0000	/* 64k	PCM */
+#define VT8500_I2C1_BASE	0xd8320000	/* 64k	I2C 1 */
+#define VT8500_I2S_BASE		0xd8330000	/* 64k	I2S */
+#define VT8500_ADC_BASE		0xd8340000	/* 64k	ADC */
+
+#define VT8500_REGS_END_PHYS	0xd834ffff	/* End of MMIO registers */
+#define VT8500_REGS_LENGTH	(VT8500_REGS_END_PHYS \
+				- VT8500_REGS_START_PHYS + 1)
+
+#endif

arch/arm/mach-vt8500/include/mach/vt8500fb.h

···
+/*
+ *  VT8500/WM8505 Frame Buffer platform data definitions
+ *
+ *  Copyright (C) 2010 Ed Spiridonov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#ifndef _VT8500FB_H
+#define _VT8500FB_H
+
+#include <linux/fb.h>
+
+struct vt8500fb_platform_data {
+	struct fb_videomode	mode;
+	u32			xres_virtual;
+	u32			yres_virtual;
+	u32			bpp;
+	unsigned long		video_mem_phys;
+	void			*video_mem_virt;
+	unsigned long		video_mem_len;
+};
+
+#endif /* _VT8500FB_H */

arch/arm/mach-vt8500/include/mach/wm8505_irqs.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/wm8505_irqs.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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
+ */
+
+/* WM8505 Interrupt Sources */
+
+#define IRQ_UHCI	0	/* UHC FS (UHCI?) */
+#define IRQ_EHCI	1	/* UHC HS */
+#define IRQ_UDCDMA	2	/* UDC DMA */
+				/* Reserved */
+#define IRQ_PS2MOUSE	4	/* PS/2 Mouse */
+#define IRQ_UDC		5	/* UDC */
+#define IRQ_EXT0	6	/* External Interrupt 0 */
+#define IRQ_EXT1	7	/* External Interrupt 1 */
+#define IRQ_KEYPAD	8	/* Keypad */
+#define IRQ_DMA		9	/* DMA Controller */
+#define IRQ_ETHER	10	/* Ethernet MAC */
+				/* Reserved */
+				/* Reserved */
+#define IRQ_EXT2	13	/* External Interrupt 2 */
+#define IRQ_EXT3	14	/* External Interrupt 3 */
+#define IRQ_EXT4	15	/* External Interrupt 4 */
+#define IRQ_APB		16	/* APB Bridge */
+#define IRQ_DMA0	17	/* DMA Channel 0 */
+#define IRQ_I2C1	18	/* I2C 1 */
+#define IRQ_I2C0	19	/* I2C 0 */
+#define IRQ_SDMMC	20	/* SD/MMC Controller */
+#define IRQ_SDMMC_DMA	21	/* SD/MMC Controller DMA */
+#define IRQ_PMC_WU	22	/* Power Management Controller Wakeup */
+#define IRQ_PS2KBD	23	/* PS/2 Keyboard */
+#define IRQ_SPI0	24	/* SPI 0 */
+#define IRQ_SPI1	25	/* SPI 1 */
+#define IRQ_SPI2	26	/* SPI 2 */
+#define IRQ_DMA1	27	/* DMA Channel 1 */
+#define IRQ_NAND	28	/* NAND Flash Controller */
+#define IRQ_NAND_DMA	29	/* NAND Flash Controller DMA */
+#define IRQ_UART5	30	/* UART 5 */
+#define IRQ_UART4	31	/* UART 4 */
+#define IRQ_UART0	32	/* UART 0 */
+#define IRQ_UART1	33	/* UART 1 */
+#define IRQ_DMA2	34	/* DMA Channel 2 */
+#define IRQ_I2S		35	/* I2S */
+#define IRQ_PMCOS0	36	/* PMC OS Timer 0 */
+#define IRQ_PMCOS1	37	/* PMC OS Timer 1 */
+#define IRQ_PMCOS2	38	/* PMC OS Timer 2 */
+#define IRQ_PMCOS3	39	/* PMC OS Timer 3 */
+#define IRQ_DMA3	40	/* DMA Channel 3 */
+#define IRQ_DMA4	41	/* DMA Channel 4 */
+#define IRQ_AC97	42	/* AC97 Interface */
+				/* Reserved */
+#define IRQ_NOR		44	/* NOR Flash Controller */
+#define IRQ_DMA5	45	/* DMA Channel 5 */
+#define IRQ_DMA6	46	/* DMA Channel 6 */
+#define IRQ_UART2	47	/* UART 2 */
+#define IRQ_RTC		48	/* RTC Interrupt */
+#define IRQ_RTCSM	49	/* RTC Second/Minute Update Interrupt */
+#define IRQ_UART3	50	/* UART 3 */
+#define IRQ_DMA7	51	/* DMA Channel 7 */
+#define IRQ_EXT5	52	/* External Interrupt 5 */
+#define IRQ_EXT6	53	/* External Interrupt 6 */
+#define IRQ_EXT7	54	/* External Interrupt 7 */
+#define IRQ_CIR		55	/* CIR */
+#define IRQ_SIC0	56	/* SIC IRQ0 */
+#define IRQ_SIC1	57	/* SIC IRQ1 */
+#define IRQ_SIC2	58	/* SIC IRQ2 */
+#define IRQ_SIC3	59	/* SIC IRQ3 */
+#define IRQ_SIC4	60	/* SIC IRQ4 */
+#define IRQ_SIC5	61	/* SIC IRQ5 */
+#define IRQ_SIC6	62	/* SIC IRQ6 */
+#define IRQ_SIC7	63	/* SIC IRQ7 */
+				/* Reserved */
+#define IRQ_JPEGDEC	65	/* JPEG Decoder */
+#define IRQ_SAE		66	/* SAE (?) */
+				/* Reserved */
+#define IRQ_VPU		79	/* Video Processing Unit */
+#define IRQ_VPP		80	/* Video Post-Processor */
+#define IRQ_VID		81	/* Video Digital Input Interface */
+#define IRQ_SPU		82	/* SPU (?) */
+#define IRQ_PIP		83	/* PIP Error */
+#define IRQ_GE		84	/* Graphic Engine */
+#define IRQ_GOV		85	/* Graphic Overlay Engine */
+#define IRQ_DVO		86	/* Digital Video Output */
+				/* Reserved */
+#define IRQ_DMA8	92	/* DMA Channel 8 */
+#define IRQ_DMA9	93	/* DMA Channel 9 */
+#define IRQ_DMA10	94	/* DMA Channel 10 */
+#define IRQ_DMA11	95	/* DMA Channel 11 */
+#define IRQ_DMA12	96	/* DMA Channel 12 */
+#define IRQ_DMA13	97	/* DMA Channel 13 */
+#define IRQ_DMA14	98	/* DMA Channel 14 */
+#define IRQ_DMA15	99	/* DMA Channel 15 */
+				/* Reserved */
+#define IRQ_GOVW	111	/* GOVW (?) */
+#define IRQ_GOVRSDSCD	112	/* GOVR SDSCD (?) */
+#define IRQ_GOVRSDMIF	113	/* GOVR SDMIF (?) */
+#define IRQ_GOVRHDSCD	114	/* GOVR HDSCD (?) */
+#define IRQ_GOVRHDMIF	115	/* GOVR HDMIF (?) */
+
+#define WM8505_NR_IRQS		116

arch/arm/mach-vt8500/include/mach/wm8505_regs.h

···
+/*
+ *  arch/arm/mach-vt8500/include/mach/wm8505_regs.h
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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
+ */
+#ifndef __ASM_ARM_ARCH_WM8505_REGS_H
+#define __ASM_ARM_ARCH_WM8505_REGS_H
+
+/* WM8505 Registers Map */
+
+#define WM8505_REGS_START_PHYS	0xd8000000	/* Start of MMIO registers */
+#define WM8505_REGS_START_VIRT	0xf8000000	/* Virtual mapping start */
+
+#define WM8505_DDR_BASE		0xd8000400	/* 1k	DDR/DDR2 Memory
+							Controller */
+#define WM8505_DMA_BASE		0xd8001800	/* 1k	DMA Controller */
+#define WM8505_VDMA_BASE	0xd8001c00	/* 1k	VDMA */
+#define WM8505_SFLASH_BASE	0xd8002000	/* 1k	Serial Flash Memory
+							Controller */
+#define WM8505_ETHER_BASE	0xd8004000	/* 1k	Ethernet MAC 0 */
+#define WM8505_CIPHER_BASE	0xd8006000	/* 4k	Cipher */
+#define WM8505_USB_BASE		0xd8007000	/* 2k	USB 2.0 Host */
+# define WM8505_EHCI_BASE	0xd8007100	/*	EHCI */
+# define WM8505_UHCI_BASE	0xd8007301	/*	UHCI */
+#define WM8505_PS2_BASE		0xd8008800	/* 1k	PS/2 */
+#define WM8505_NAND_BASE	0xd8009000	/* 1k	NAND Controller */
+#define WM8505_NOR_BASE		0xd8009400	/* 1k	NOR Controller */
+#define WM8505_SDMMC_BASE	0xd800a000	/* 1k	SD/MMC Controller */
+#define WM8505_VPU_BASE		0xd8050000	/* 256	VPU */
+#define WM8505_GOV_BASE		0xd8050300	/* 256	GOV */
+#define WM8505_GEGEA_BASE	0xd8050400	/* 768	GE/GE Alpha Mixing */
+#define WM8505_GOVR_BASE	0xd8050800	/* 512	GOVR (frambuffer) */
+#define WM8505_VID_BASE		0xd8050a00	/* 256	VID */
+#define WM8505_SCL_BASE		0xd8050d00	/* 256	SCL */
+#define WM8505_VPP_BASE		0xd8050f00	/* 256	VPP */
+#define WM8505_JPEGDEC_BASE	0xd80fe000	/* 4k	JPEG Decoder */
+#define WM8505_RTC_BASE		0xd8100000	/* 64k	RTC */
+#define WM8505_GPIO_BASE	0xd8110000	/* 64k	GPIO Configuration */
+#define WM8505_SCC_BASE		0xd8120000	/* 64k	System Configuration*/
+#define WM8505_PMC_BASE		0xd8130000	/* 64k	PMC Configuration */
+#define WM8505_IC_BASE		0xd8140000	/* 64k	Interrupt Controller*/
+#define WM8505_SIC_BASE		0xd8150000	/* 64k	Secondary IC */
+#define WM8505_UART0_BASE	0xd8200000	/* 64k	UART 0 */
+#define WM8505_UART2_BASE	0xd8210000	/* 64k	UART 2 */
+#define WM8505_PWM_BASE		0xd8220000	/* 64k	PWM Configuration */
+#define WM8505_SPI0_BASE	0xd8240000	/* 64k	SPI 0 */
+#define WM8505_SPI1_BASE	0xd8250000	/* 64k	SPI 1 */
+#define WM8505_KEYPAD_BASE	0xd8260000	/* 64k	Keypad control */
+#define WM8505_CIR_BASE		0xd8270000	/* 64k	CIR */
+#define WM8505_I2C0_BASE	0xd8280000	/* 64k	I2C 0 */
+#define WM8505_AC97_BASE	0xd8290000	/* 64k	AC97 */
+#define WM8505_SPI2_BASE	0xd82a0000	/* 64k	SPI 2 */
+#define WM8505_UART1_BASE	0xd82b0000	/* 64k	UART 1 */
+#define WM8505_UART3_BASE	0xd82c0000	/* 64k	UART 3 */
+#define WM8505_I2C1_BASE	0xd8320000	/* 64k	I2C 1 */
+#define WM8505_I2S_BASE		0xd8330000	/* 64k	I2S */
+#define WM8505_UART4_BASE	0xd8370000	/* 64k	UART 4 */
+#define WM8505_UART5_BASE	0xd8380000	/* 64k	UART 5 */
+
+#define WM8505_REGS_END_PHYS	0xd838ffff	/* End of MMIO registers */
+#define WM8505_REGS_LENGTH	(WM8505_REGS_END_PHYS \
+				- WM8505_REGS_START_PHYS + 1)
+
+#endif

arch/arm/mach-vt8500/irq.c

···
+/*
+ *  arch/arm/mach-vt8500/irq.c
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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 <linux/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+#include <asm/irq.h>
+
+#include "devices.h"
+
+#define VT8500_IC_DCTR		0x40		/* Destination control
+						register, 64*u8 */
+#define VT8500_INT_ENABLE	(1 << 3)
+#define VT8500_TRIGGER_HIGH	(0 << 4)
+#define VT8500_TRIGGER_RISING	(1 << 4)
+#define VT8500_TRIGGER_FALLING	(2 << 4)
+#define VT8500_EDGE		( VT8500_TRIGGER_RISING \
+				| VT8500_TRIGGER_FALLING)
+#define VT8500_IC_STATUS	0x80		/* Interrupt status, 2*u32 */
+
+static void __iomem *ic_regbase;
+static void __iomem *sic_regbase;
+
+static void vt8500_irq_mask(unsigned int irq)
+{
+	void __iomem *base = ic_regbase;
+	u8 edge;
+
+	if (irq >= 64) {
+		base = sic_regbase;
+		irq -= 64;
+	}
+	edge = readb(base + VT8500_IC_DCTR + irq) & VT8500_EDGE;
+	if (edge) {
+		void __iomem *stat_reg = base + VT8500_IC_STATUS
+						+ (irq < 32 ? 0 : 4);
+		unsigned status = readl(stat_reg);
+
+		status |= (1 << (irq & 0x1f));
+		writel(status, stat_reg);
+	} else {
+		u8 dctr = readb(base + VT8500_IC_DCTR + irq);
+
+		dctr &= ~VT8500_INT_ENABLE;
+		writeb(dctr, base + VT8500_IC_DCTR + irq);
+	}
+}
+
+static void vt8500_irq_unmask(unsigned int irq)
+{
+	void __iomem *base = ic_regbase;
+	u8 dctr;
+
+	if (irq >= 64) {
+		base = sic_regbase;
+		irq -= 64;
+	}
+	dctr = readb(base + VT8500_IC_DCTR + irq);
+	dctr |= VT8500_INT_ENABLE;
+	writeb(dctr, base + VT8500_IC_DCTR + irq);
+}
+
+static int vt8500_irq_set_type(unsigned int irq, unsigned int flow_type)
+{
+	void __iomem *base = ic_regbase;
+	unsigned int orig_irq = irq;
+	u8 dctr;
+
+	if (irq >= 64) {
+		base = sic_regbase;
+		irq -= 64;
+	}
+
+	dctr = readb(base + VT8500_IC_DCTR + irq);
+	dctr &= ~VT8500_EDGE;
+
+	switch (flow_type) {
+	case IRQF_TRIGGER_LOW:
+		return -EINVAL;
+	case IRQF_TRIGGER_HIGH:
+		dctr |= VT8500_TRIGGER_HIGH;
+		irq_desc[orig_irq].handle_irq = handle_level_irq;
+		break;
+	case IRQF_TRIGGER_FALLING:
+		dctr |= VT8500_TRIGGER_FALLING;
+		irq_desc[orig_irq].handle_irq = handle_edge_irq;
+		break;
+	case IRQF_TRIGGER_RISING:
+		dctr |= VT8500_TRIGGER_RISING;
+		irq_desc[orig_irq].handle_irq = handle_edge_irq;
+		break;
+	}
+	writeb(dctr, base + VT8500_IC_DCTR + irq);
+
+	return 0;
+}
+
+static struct irq_chip vt8500_irq_chip = {
+	.name      = "vt8500",
+	.ack       = vt8500_irq_mask,
+	.mask      = vt8500_irq_mask,
+	.unmask    = vt8500_irq_unmask,
+	.set_type  = vt8500_irq_set_type,
+};
+
+void __init vt8500_init_irq(void)
+{
+	unsigned int i;
+
+	ic_regbase = ioremap(wmt_ic_base, SZ_64K);
+
+	if (ic_regbase) {
+		/* Enable rotating priority for IRQ */
+		writel((1 << 6), ic_regbase + 0x20);
+		writel(0, ic_regbase + 0x24);
+
+		for (i = 0; i < wmt_nr_irqs; i++) {
+			/* Disable all interrupts and route them to IRQ */
+			writeb(0x00, ic_regbase + VT8500_IC_DCTR + i);
+
+			set_irq_chip(i, &vt8500_irq_chip);
+			set_irq_handler(i, handle_level_irq);
+			set_irq_flags(i, IRQF_VALID);
+		}
+	} else {
+		printk(KERN_ERR "Unable to remap the Interrupt Controller registers, not enabling IRQs!\n");
+	}
+}
+
+void __init wm8505_init_irq(void)
+{
+	unsigned int i;
+
+	ic_regbase = ioremap(wmt_ic_base, SZ_64K);
+	sic_regbase = ioremap(wmt_sic_base, SZ_64K);
+
+	if (ic_regbase && sic_regbase) {
+		/* Enable rotating priority for IRQ */
+		writel((1 << 6), ic_regbase + 0x20);
+		writel(0, ic_regbase + 0x24);
+		writel((1 << 6), sic_regbase + 0x20);
+		writel(0, sic_regbase + 0x24);
+
+		for (i = 0; i < wmt_nr_irqs; i++) {
+			/* Disable all interrupts and route them to IRQ */
+			if (i < 64)
+				writeb(0x00, ic_regbase + VT8500_IC_DCTR + i);
+			else
+				writeb(0x00, sic_regbase + VT8500_IC_DCTR
+								+ i - 64);
+
+			set_irq_chip(i, &vt8500_irq_chip);
+			set_irq_handler(i, handle_level_irq);
+			set_irq_flags(i, IRQF_VALID);
+		}
+	} else {
+		printk(KERN_ERR "Unable to remap the Interrupt Controller registers, not enabling IRQs!\n");
+	}
+}

arch/arm/mach-vt8500/pwm.c

···
+/*
+ * arch/arm/mach-vt8500/pwm.c
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/pwm.h>
+#include <linux/delay.h>
+
+#include <asm/div64.h>
+
+#define VT8500_NR_PWMS 4
+
+static DEFINE_MUTEX(pwm_lock);
+static LIST_HEAD(pwm_list);
+
+struct pwm_device {
+	struct list_head	node;
+	struct platform_device	*pdev;
+
+	const char	*label;
+
+	void __iomem	*regbase;
+
+	unsigned int	use_count;
+	unsigned int	pwm_id;
+};
+
+#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+static inline void pwm_busy_wait(void __iomem *reg, u8 bitmask)
+{
+	int loops = msecs_to_loops(10);
+	while ((readb(reg) & bitmask) && --loops)
+		cpu_relax();
+
+	if (unlikely(!loops))
+		pr_warning("Waiting for status bits 0x%x to clear timed out\n",
+			   bitmask);
+}
+
+int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
+{
+	unsigned long long c;
+	unsigned long period_cycles, prescale, pv, dc;
+
+	if (pwm == NULL || period_ns == 0 || duty_ns > period_ns)
+		return -EINVAL;
+
+	c = 25000000/2; /* wild guess --- need to implement clocks */
+	c = c * period_ns;
+	do_div(c, 1000000000);
+	period_cycles = c;
+
+	if (period_cycles < 1)
+		period_cycles = 1;
+	prescale = (period_cycles - 1) / 4096;
+	pv = period_cycles / (prescale + 1) - 1;
+	if (pv > 4095)
+		pv = 4095;
+
+	if (prescale > 1023)
+		return -EINVAL;
+
+	c = (unsigned long long)pv * duty_ns;
+	do_div(c, period_ns);
+	dc = c;
+
+	pwm_busy_wait(pwm->regbase + 0x40 + pwm->pwm_id, (1 << 1));
+	writel(prescale, pwm->regbase + 0x4 + (pwm->pwm_id << 4));
+
+	pwm_busy_wait(pwm->regbase + 0x40 + pwm->pwm_id, (1 << 2));
+	writel(pv, pwm->regbase + 0x8 + (pwm->pwm_id << 4));
+
+	pwm_busy_wait(pwm->regbase + 0x40 + pwm->pwm_id, (1 << 3));
+	writel(dc, pwm->regbase + 0xc + (pwm->pwm_id << 4));
+
+	return 0;
+}
+EXPORT_SYMBOL(pwm_config);
+
+int pwm_enable(struct pwm_device *pwm)
+{
+	pwm_busy_wait(pwm->regbase + 0x40 + pwm->pwm_id, (1 << 0));
+	writel(5, pwm->regbase + (pwm->pwm_id << 4));
+	return 0;
+}
+EXPORT_SYMBOL(pwm_enable);
+
+void pwm_disable(struct pwm_device *pwm)
+{
+	pwm_busy_wait(pwm->regbase + 0x40 + pwm->pwm_id, (1 << 0));
+	writel(0, pwm->regbase + (pwm->pwm_id << 4));
+}
+EXPORT_SYMBOL(pwm_disable);
+
+struct pwm_device *pwm_request(int pwm_id, const char *label)
+{
+	struct pwm_device *pwm;
+	int found = 0;
+
+	mutex_lock(&pwm_lock);
+
+	list_for_each_entry(pwm, &pwm_list, node) {
+		if (pwm->pwm_id == pwm_id) {
+			found = 1;
+			break;
+		}
+	}
+
+	if (found) {
+		if (pwm->use_count == 0) {
+			pwm->use_count++;
+			pwm->label = label;
+		} else {
+			pwm = ERR_PTR(-EBUSY);
+		}
+	} else {
+		pwm = ERR_PTR(-ENOENT);
+	}
+
+	mutex_unlock(&pwm_lock);
+	return pwm;
+}
+EXPORT_SYMBOL(pwm_request);
+
+void pwm_free(struct pwm_device *pwm)
+{
+	mutex_lock(&pwm_lock);
+
+	if (pwm->use_count) {
+		pwm->use_count--;
+		pwm->label = NULL;
+	} else {
+		pr_warning("PWM device already freed\n");
+	}
+
+	mutex_unlock(&pwm_lock);
+}
+EXPORT_SYMBOL(pwm_free);
+
+static inline void __add_pwm(struct pwm_device *pwm)
+{
+	mutex_lock(&pwm_lock);
+	list_add_tail(&pwm->node, &pwm_list);
+	mutex_unlock(&pwm_lock);
+}
+
+static int __devinit pwm_probe(struct platform_device *pdev)
+{
+	struct pwm_device *pwms;
+	struct resource *r;
+	int ret = 0;
+	int i;
+
+	pwms = kzalloc(sizeof(struct pwm_device) * VT8500_NR_PWMS, GFP_KERNEL);
+	if (pwms == NULL) {
+		dev_err(&pdev->dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < VT8500_NR_PWMS; i++) {
+		pwms[i].use_count = 0;
+		pwms[i].pwm_id = i;
+		pwms[i].pdev = pdev;
+	}
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (r == NULL) {
+		dev_err(&pdev->dev, "no memory resource defined\n");
+		ret = -ENODEV;
+		goto err_free;
+	}
+
+	r = request_mem_region(r->start, resource_size(r), pdev->name);
+	if (r == NULL) {
+		dev_err(&pdev->dev, "failed to request memory resource\n");
+		ret = -EBUSY;
+		goto err_free;
+	}
+
+	pwms[0].regbase = ioremap(r->start, resource_size(r));
+	if (pwms[0].regbase == NULL) {
+		dev_err(&pdev->dev, "failed to ioremap() registers\n");
+		ret = -ENODEV;
+		goto err_free_mem;
+	}
+
+	for (i = 1; i < VT8500_NR_PWMS; i++)
+		pwms[i].regbase = pwms[0].regbase;
+
+	for (i = 0; i < VT8500_NR_PWMS; i++)
+		__add_pwm(&pwms[i]);
+
+	platform_set_drvdata(pdev, pwms);
+	return 0;
+
+err_free_mem:
+	release_mem_region(r->start, resource_size(r));
+err_free:
+	kfree(pwms);
+	return ret;
+}
+
+static int __devexit pwm_remove(struct platform_device *pdev)
+{
+	struct pwm_device *pwms;
+	struct resource *r;
+	int i;
+
+	pwms = platform_get_drvdata(pdev);
+	if (pwms == NULL)
+		return -ENODEV;
+
+	mutex_lock(&pwm_lock);
+
+	for (i = 0; i < VT8500_NR_PWMS; i++)
+		list_del(&pwms[i].node);
+	mutex_unlock(&pwm_lock);
+
+	iounmap(pwms[0].regbase);
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	release_mem_region(r->start, resource_size(r));
+
+	kfree(pwms);
+	return 0;
+}
+
+static struct platform_driver pwm_driver = {
+	.driver		= {
+		.name	= "vt8500-pwm",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= pwm_probe,
+	.remove		= __devexit_p(pwm_remove),
+};
+
+static int __init pwm_init(void)
+{
+	return platform_driver_register(&pwm_driver);
+}
+arch_initcall(pwm_init);
+
+static void __exit pwm_exit(void)
+{
+	platform_driver_unregister(&pwm_driver);
+}
+module_exit(pwm_exit);
+
+MODULE_LICENSE("GPL");

arch/arm/mach-vt8500/timer.c

···
+/*
+ *  arch/arm/mach-vt8500/timer.c
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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 <linux/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/delay.h>
+
+#include <asm/mach/time.h>
+
+#include "devices.h"
+
+#define VT8500_TIMER_OFFSET	0x0100
+#define TIMER_MATCH_VAL		0x0000
+#define TIMER_COUNT_VAL		0x0010
+#define TIMER_STATUS_VAL	0x0014
+#define TIMER_IER_VAL		0x001c		/* interrupt enable */
+#define TIMER_CTRL_VAL		0x0020
+#define TIMER_AS_VAL		0x0024		/* access status */
+#define TIMER_COUNT_R_ACTIVE	(1 << 5)	/* not ready for read */
+#define TIMER_COUNT_W_ACTIVE	(1 << 4)	/* not ready for write */
+#define TIMER_MATCH_W_ACTIVE	(1 << 0)	/* not ready for write */
+#define VT8500_TIMER_HZ		3000000
+
+#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+
+static void __iomem *regbase;
+
+static cycle_t vt8500_timer_read(struct clocksource *cs)
+{
+	int loops = msecs_to_loops(10);
+	writel(3, regbase + TIMER_CTRL_VAL);
+	while ((readl((regbase + TIMER_AS_VAL)) & TIMER_COUNT_R_ACTIVE)
+						&& --loops)
+		cpu_relax();
+	return readl(regbase + TIMER_COUNT_VAL);
+}
+
+struct clocksource clocksource = {
+	.name           = "vt8500_timer",
+	.rating         = 200,
+	.read           = vt8500_timer_read,
+	.mask           = CLOCKSOURCE_MASK(32),
+	.flags          = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int vt8500_timer_set_next_event(unsigned long cycles,
+				    struct clock_event_device *evt)
+{
+	int loops = msecs_to_loops(10);
+	cycle_t alarm = clocksource.read(&clocksource) + cycles;
+	while ((readl(regbase + TIMER_AS_VAL) & TIMER_MATCH_W_ACTIVE)
+						&& --loops)
+		cpu_relax();
+	writel((unsigned long)alarm, regbase + TIMER_MATCH_VAL);
+
+	if ((signed)(alarm - clocksource.read(&clocksource)) <= 16)
+		return -ETIME;
+
+	writel(1, regbase + TIMER_IER_VAL);
+
+	return 0;
+}
+
+static void vt8500_timer_set_mode(enum clock_event_mode mode,
+			      struct clock_event_device *evt)
+{
+	switch (mode) {
+	case CLOCK_EVT_MODE_RESUME:
+	case CLOCK_EVT_MODE_PERIODIC:
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		writel(readl(regbase + TIMER_CTRL_VAL) | 1,
+			regbase + TIMER_CTRL_VAL);
+		writel(0, regbase + TIMER_IER_VAL);
+		break;
+	}
+}
+
+struct clock_event_device clockevent = {
+	.name           = "vt8500_timer",
+	.features       = CLOCK_EVT_FEAT_ONESHOT,
+	.rating         = 200,
+	.set_next_event = vt8500_timer_set_next_event,
+	.set_mode       = vt8500_timer_set_mode,
+};
+
+static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = dev_id;
+	writel(0xf, regbase + TIMER_STATUS_VAL);
+	evt->event_handler(evt);
+
+	return IRQ_HANDLED;
+}
+
+struct irqaction irq = {
+	.name    = "vt8500_timer",
+	.flags   = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.handler = vt8500_timer_interrupt,
+	.dev_id  = &clockevent,
+};
+
+static void __init vt8500_timer_init(void)
+{
+	regbase = ioremap(wmt_pmc_base + VT8500_TIMER_OFFSET, 0x28);
+	if (!regbase)
+		printk(KERN_ERR "vt8500_timer_init: failed to map MMIO registers\n");
+
+	writel(1, regbase + TIMER_CTRL_VAL);
+	writel(0xf, regbase + TIMER_STATUS_VAL);
+	writel(~0, regbase + TIMER_MATCH_VAL);
+
+	if (clocksource_register_hz(&clocksource, VT8500_TIMER_HZ))
+		printk(KERN_ERR "vt8500_timer_init: clocksource_register failed for %s\n",
+					clocksource.name);
+
+	clockevents_calc_mult_shift(&clockevent, VT8500_TIMER_HZ, 4);
+
+	/* copy-pasted from mach-msm; no idea */
+	clockevent.max_delta_ns =
+		clockevent_delta2ns(0xf0000000, &clockevent);
+	clockevent.min_delta_ns = clockevent_delta2ns(4, &clockevent);
+	clockevent.cpumask = cpumask_of(0);
+
+	if (setup_irq(wmt_timer_irq, &irq))
+		printk(KERN_ERR "vt8500_timer_init: setup_irq failed for %s\n",
+					clockevent.name);
+	clockevents_register_device(&clockevent);
+}
+
+struct sys_timer vt8500_timer = {
+	.init = vt8500_timer_init
+};

arch/arm/mach-vt8500/wm8505_7in.c

···
+/*
+ *  arch/arm/mach-vt8500/wm8505_7in.c
+ *
+ *  Copyright (C) 2010 Alexey Charkov <[e-mail]>
+ *
+ * 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 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 <linux/io.h>
+#include <linux/pm.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include "devices.h"
+
+static void __iomem *pmc_hiber;
+
+static struct platform_device *devices[] __initdata = {
+	&vt8500_device_uart0,
+	&vt8500_device_ehci,
+	&vt8500_device_wm8505_fb,
+	&vt8500_device_ge_rops,
+	&vt8500_device_pwm,
+	&vt8500_device_pwmbl,
+	&vt8500_device_rtc,
+};
+
+static void vt8500_power_off(void)
+{
+	local_irq_disable();
+	writew(5, pmc_hiber);
+	asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0));
+}
+
+void __init wm8505_7in_init(void)
+{
+#ifdef CONFIG_FB_WM8505
+	void __iomem *gpio_mux_reg = ioremap(wmt_gpio_base + 0x200, 4);
+	if (gpio_mux_reg) {
+		writel(readl(gpio_mux_reg) | 0x80000000, gpio_mux_reg);
+		iounmap(gpio_mux_reg);
+	} else {
+		printk(KERN_ERR "Could not remap the GPIO mux register, display may not work properly!\n");
+	}
+#endif
+	pmc_hiber = ioremap(wmt_pmc_base + 0x12, 2);
+	if (pmc_hiber)
+		pm_power_off = &vt8500_power_off;
+	else
+		printk(KERN_ERR "PMC Hibernation register could not be remapped, not enabling power off!\n");
+
+	wm8505_set_resources();
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	vt8500_gpio_init();
+}
+
+MACHINE_START(WM8505_7IN_NETBOOK, "WM8505 7-inch generic netbook")
+	.boot_params	= 0x00000100,
+	.reserve	= wm8505_reserve_mem,
+	.map_io		= wm8505_map_io,
+	.init_irq	= wm8505_init_irq,
+	.timer		= &vt8500_timer,
+	.init_machine	= wm8505_7in_init,
+MACHINE_END