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
119