summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-nomadik/board-nhk8815.c
blob: f6f74adbe8c40ea7861abf8f3ed87297c3a56472 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
/*
 *  linux/arch/arm/mach-nomadik/board-8815nhk.c
 *
 *  Copyright (C) STMicroelectronics
 *
 * 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.
 *
 *  NHK15 board specifc driver definition
 */
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/amba/bus.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/partitions.h>
#include <linux/io.h>
#include <asm/hardware/vic.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>

#include <plat/gpio-nomadik.h>
#include <plat/mtu.h>

#include <mach/setup.h>
#include <mach/nand.h>
#include <mach/fsmc.h>

#include "cpu-8815.h"

/* Initial value for SRC control register: all timers use MXTAL/8 source */
#define SRC_CR_INIT_MASK	0x00007fff
#define SRC_CR_INIT_VAL		0x2aaa8000

/* These addresses span 16MB, so use three individual pages */
static struct resource nhk8815_nand_resources[] = {
	{
		.name = "nand_addr",
		.start = NAND_IO_ADDR,
		.end = NAND_IO_ADDR + 0xfff,
		.flags = IORESOURCE_MEM,
	}, {
		.name = "nand_cmd",
		.start = NAND_IO_CMD,
		.end = NAND_IO_CMD + 0xfff,
		.flags = IORESOURCE_MEM,
	}, {
		.name = "nand_data",
		.start = NAND_IO_DATA,
		.end = NAND_IO_DATA + 0xfff,
		.flags = IORESOURCE_MEM,
	}
};

static int nhk8815_nand_init(void)
{
	/* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
	writel(0x0000000E, FSMC_PCR(0));
	writel(0x000D0A00, FSMC_PMEM(0));
	writel(0x00100A00, FSMC_PATT(0));

	/* enable access to the chip select area */
	writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));

	return 0;
}

/*
 * These partitions are the same as those used in the 2.6.20 release
 * shipped by the vendor; the first two partitions are mandated
 * by the boot ROM, and the bootloader area is somehow oversized...
 */
static struct mtd_partition nhk8815_partitions[] = {
	{
		.name	= "X-Loader(NAND)",
		.offset = 0,
		.size	= SZ_256K,
	}, {
		.name	= "MemInit(NAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= SZ_256K,
	}, {
		.name	= "BootLoader(NAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= SZ_2M,
	}, {
		.name	= "Kernel zImage(NAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= 3 * SZ_1M,
	}, {
		.name	= "Root Filesystem(NAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= 22 * SZ_1M,
	}, {
		.name	= "User Filesystem(NAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= MTDPART_SIZ_FULL,
	}
};

static struct nomadik_nand_platform_data nhk8815_nand_data = {
	.parts		= nhk8815_partitions,
	.nparts		= ARRAY_SIZE(nhk8815_partitions),
	.options	= NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \
			| NAND_NO_READRDY | NAND_NO_AUTOINCR,
	.init		= nhk8815_nand_init,
};

static struct platform_device nhk8815_nand_device = {
	.name		= "nomadik_nand",
	.dev		= {
		.platform_data = &nhk8815_nand_data,
	},
	.resource	= nhk8815_nand_resources,
	.num_resources	= ARRAY_SIZE(nhk8815_nand_resources),
};

/* These are the partitions for the OneNand device, different from above */
static struct mtd_partition nhk8815_onenand_partitions[] = {
	{
		.name	= "X-Loader(OneNAND)",
		.offset = 0,
		.size	= SZ_256K,
	}, {
		.name	= "MemInit(OneNAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= SZ_256K,
	}, {
		.name	= "BootLoader(OneNAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= SZ_2M-SZ_256K,
	}, {
		.name	= "SysImage(OneNAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= 4 * SZ_1M,
	}, {
		.name	= "Root Filesystem(OneNAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= 22 * SZ_1M,
	}, {
		.name	= "User Filesystem(OneNAND)",
		.offset	= MTDPART_OFS_APPEND,
		.size	= MTDPART_SIZ_FULL,
	}
};

static struct onenand_platform_data nhk8815_onenand_data = {
	.parts		= nhk8815_onenand_partitions,
	.nr_parts	= ARRAY_SIZE(nhk8815_onenand_partitions),
};

static struct resource nhk8815_onenand_resource[] = {
	{
		.start		= 0x30000000,
		.end		= 0x30000000 + SZ_128K - 1,
		.flags		= IORESOURCE_MEM,
	},
};

static struct platform_device nhk8815_onenand_device = {
	.name		= "onenand-flash",
	.id		= -1,
	.dev		= {
		.platform_data	= &nhk8815_onenand_data,
	},
	.resource	= nhk8815_onenand_resource,
	.num_resources	= ARRAY_SIZE(nhk8815_onenand_resource),
};

static void __init nhk8815_onenand_init(void)
{
#ifdef CONFIG_MTD_ONENAND
       /* Set up SMCS0 for OneNand */
	writel(0x000030db, FSMC_BCR(0));
	writel(0x02100551, FSMC_BTR(0));
#endif
}

static AMBA_APB_DEVICE(uart0, "uart0", 0, NOMADIK_UART0_BASE,
	{ IRQ_UART0 }, NULL);

static AMBA_APB_DEVICE(uart1, "uart1", 0, NOMADIK_UART1_BASE,
	{ IRQ_UART1 }, NULL);

static struct amba_device *amba_devs[] __initdata = {
	&uart0_device,
	&uart1_device,
};

static struct resource nhk8815_eth_resources[] = {
	{
		.name = "smc91x-regs",
		.start = 0x34000000 + 0x300,
		.end = 0x34000000 + SZ_64K - 1,
		.flags = IORESOURCE_MEM,
	}, {
		.start = NOMADIK_GPIO_TO_IRQ(115),
		.end = NOMADIK_GPIO_TO_IRQ(115),
		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
	}
};

static struct platform_device nhk8815_eth_device = {
	.name = "smc91x",
	.resource = nhk8815_eth_resources,
	.num_resources = ARRAY_SIZE(nhk8815_eth_resources),
};

static int __init nhk8815_eth_init(void)
{
	int gpio_nr = 115; /* hardwired in the board */
	int err;

	err = gpio_request(gpio_nr, "eth_irq");
	if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
	if (!err) err = gpio_direction_input(gpio_nr);
	if (err)
		pr_err("Error %i in %s\n", err, __func__);
	return err;
}
device_initcall(nhk8815_eth_init);

static struct platform_device *nhk8815_platform_devices[] __initdata = {
	&nhk8815_nand_device,
	&nhk8815_onenand_device,
	&nhk8815_eth_device,
	/* will add more devices */
};

static void __init nomadik_timer_init(void)
{
	u32 src_cr;

	/* Configure timer sources in "system reset controller" ctrl reg */
	src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
	src_cr &= SRC_CR_INIT_MASK;
	src_cr |= SRC_CR_INIT_VAL;
	writel(src_cr, io_p2v(NOMADIK_SRC_BASE));

	/* Save global pointer to mtu, used by platform timer code */
	mtu_base = io_p2v(NOMADIK_MTU0_BASE);

	nmdk_timer_init();
}

static struct sys_timer nomadik_timer = {
	.init	= nomadik_timer_init,
};

static void __init nhk8815_platform_init(void)
{
	int i;

	cpu8815_platform_init();
	nhk8815_onenand_init();
	platform_add_devices(nhk8815_platform_devices,
			     ARRAY_SIZE(nhk8815_platform_devices));

	for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
		amba_device_register(amba_devs[i], &iomem_resource);
}

MACHINE_START(NOMADIK, "NHK8815")
	/* Maintainer: ST MicroElectronics */
	.atag_offset	= 0x100,
	.map_io		= cpu8815_map_io,
	.init_irq	= cpu8815_init_irq,
	.handle_irq	= vic_handle_irq,
	.timer		= &nomadik_timer,
	.init_machine	= nhk8815_platform_init,
	.restart	= cpu8815_restart,
MACHINE_END