1/*
  2 * Common devices definition for Gemini
  3 *
  4 * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
  5 *
  6 * This program is free software; you can redistribute it and/or modify
  7 * it under the terms of the GNU General Public License version 2 as
  8 * published by the Free Software Foundation.
  9 */
 10#include <linux/kernel.h>
 11#include <linux/init.h>
 12#include <linux/io.h>
 13#include <linux/platform_device.h>
 14#include <linux/serial_8250.h>
 15#include <linux/mtd/physmap.h>
 16
 17#include <mach/irqs.h>
 18#include <mach/hardware.h>
 19#include <mach/global_reg.h>
 20
 21static struct plat_serial8250_port serial_platform_data[] = {
 22	{
 23		.membase	= (void *)IO_ADDRESS(GEMINI_UART_BASE),
 24		.mapbase	= GEMINI_UART_BASE,
 25		.irq		= IRQ_UART,
 26		.uartclk	= UART_CLK,
 27		.regshift	= 2,
 28		.iotype		= UPIO_MEM,
 29		.type		= PORT_16550A,
 30		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_FIXED_TYPE,
 31	},
 32	{},
 33};
 34
 35static struct platform_device serial_device = {
 36	.name	= "serial8250",
 37	.id	= PLAT8250_DEV_PLATFORM,
 38	.dev	= {
 39		.platform_data = serial_platform_data,
 40	},
 41};
 42
 43int platform_register_uart(void)
 44{
 45	return platform_device_register(&serial_device);
 46}
 47
 48static struct resource flash_resource = {
 49	.start	= GEMINI_FLASH_BASE,
 50	.flags	= IORESOURCE_MEM,
 51};
 52
 53static struct physmap_flash_data pflash_platform_data = {};
 54
 55static struct platform_device pflash_device = {
 56	.name	= "physmap-flash",
 57	.id	= 0,
 58	.dev 	= {
 59		.platform_data = &pflash_platform_data,
 60	},
 61	.resource = &flash_resource,
 62	.num_resources = 1,
 63};
 64
 65int platform_register_pflash(unsigned int size, struct mtd_partition *parts,
 66			     unsigned int nr_parts)
 67{
 68	unsigned int reg;
 69
 70	reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_STATUS);
 71
 72	if ((reg & FLASH_TYPE_MASK) != FLASH_TYPE_PARALLEL)
 73		return -ENXIO;
 74
 75	if (reg & FLASH_WIDTH_16BIT)
 76		pflash_platform_data.width = 2;
 77	else
 78		pflash_platform_data.width = 1;
 79
 80	/* enable parallel flash pins and disable others */
 81	reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL);
 82	reg &= ~PFLASH_PADS_DISABLE;
 83	reg |= SFLASH_PADS_DISABLE | NAND_PADS_DISABLE;
 84	__raw_writel(reg, IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL);
 85
 86	flash_resource.end = flash_resource.start + size - 1;
 87
 88	pflash_platform_data.parts = parts;
 89	pflash_platform_data.nr_parts = nr_parts;
 90
 91	return platform_device_register(&pflash_device);
 92}
 93
 94static struct resource gemini_rtc_resources[] = {
 95	[0] = {
 96		.start  = GEMINI_RTC_BASE,
 97		.end    = GEMINI_RTC_BASE + 0x24,
 98		.flags  = IORESOURCE_MEM,
 99	},
100	[1] = {
101		.start  = IRQ_RTC,
102		.end    = IRQ_RTC,
103		.flags  = IORESOURCE_IRQ,
104	},
105};
106
107static struct platform_device gemini_rtc_device = {
108	.name		= "rtc-gemini",
109	.id		= 0,
110	.num_resources	= ARRAY_SIZE(gemini_rtc_resources),
111	.resource	= gemini_rtc_resources,
112};
113
114int __init platform_register_rtc(void)
115{
116	return platform_device_register(&gemini_rtc_device);
117}
118