linux/arch/arm/mach-vt8500/devices-vt8500.c
Alexey Charkov 21f47fbc5b 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 <alchark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 15:07:01 +00:00

91 lines
2.6 KiB
C

/* linux/arch/arm/mach-vt8500/devices-vt8500.c
*
* Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
*
* 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();
}