[ARM] MXC: rework timer/clock initialisation
[linux-2.6.git] / arch / arm / mach-mx3 / pcm037.c
1 /*
2  *  Copyright (C) 2008 Sascha Hauer, Pengutronix
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17  */
18
19 #include <linux/types.h>
20 #include <linux/init.h>
21
22 #include <linux/platform_device.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/mtd/plat-ram.h>
25 #include <linux/memory.h>
26 #include <linux/gpio.h>
27 #include <linux/smc911x.h>
28 #include <linux/interrupt.h>
29
30 #include <mach/hardware.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/time.h>
34 #include <asm/mach/map.h>
35 #include <mach/common.h>
36 #include <mach/imx-uart.h>
37 #include <mach/iomux-mx3.h>
38 #include <mach/board-pcm037.h>
39 #include <mach/mxc_nand.h>
40
41 #include "devices.h"
42
43 static struct physmap_flash_data pcm037_flash_data = {
44         .width  = 2,
45 };
46
47 static struct resource pcm037_flash_resource = {
48         .start  = 0xa0000000,
49         .end    = 0xa1ffffff,
50         .flags  = IORESOURCE_MEM,
51 };
52
53 static struct platform_device pcm037_flash = {
54         .name   = "physmap-flash",
55         .id     = 0,
56         .dev    = {
57                 .platform_data  = &pcm037_flash_data,
58         },
59         .resource = &pcm037_flash_resource,
60         .num_resources = 1,
61 };
62
63 static struct imxuart_platform_data uart_pdata = {
64         .flags = IMXUART_HAVE_RTSCTS,
65 };
66
67 static struct resource smc911x_resources[] = {
68         [0] = {
69                 .start          = CS1_BASE_ADDR + 0x300,
70                 .end            = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
71                 .flags          = IORESOURCE_MEM,
72         },
73         [1] = {
74                 .start          = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
75                 .end            = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
76                 .flags          = IORESOURCE_IRQ,
77         },
78 };
79
80 static struct smc911x_platdata smc911x_info = {
81         .flags          = SMC911X_USE_32BIT,
82         .irq_flags      = IRQF_SHARED | IRQF_TRIGGER_LOW,
83 };
84
85 static struct platform_device pcm037_eth = {
86         .name           = "smc911x",
87         .id             = -1,
88         .num_resources  = ARRAY_SIZE(smc911x_resources),
89         .resource       = smc911x_resources,
90         .dev            = {
91                 .platform_data = &smc911x_info,
92         },
93 };
94
95 static struct platdata_mtd_ram pcm038_sram_data = {
96         .bankwidth = 2,
97 };
98
99 static struct resource pcm038_sram_resource = {
100         .start = CS4_BASE_ADDR,
101         .end   = CS4_BASE_ADDR + 512 * 1024 - 1,
102         .flags = IORESOURCE_MEM,
103 };
104
105 static struct platform_device pcm037_sram_device = {
106         .name = "mtd-ram",
107         .id = 0,
108         .dev = {
109                 .platform_data = &pcm038_sram_data,
110         },
111         .num_resources = 1,
112         .resource = &pcm038_sram_resource,
113 };
114
115 static struct mxc_nand_platform_data pcm037_nand_board_info = {
116         .width = 1,
117         .hw_ecc = 1,
118 };
119
120 static struct platform_device *devices[] __initdata = {
121         &pcm037_flash,
122         &pcm037_eth,
123         &pcm037_sram_device,
124 };
125
126 /*
127  * Board specific initialization.
128  */
129 static void __init mxc_board_init(void)
130 {
131         platform_add_devices(devices, ARRAY_SIZE(devices));
132
133         mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
134         mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
135         mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
136         mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
137
138         mxc_register_device(&mxc_uart_device0, &uart_pdata);
139
140         mxc_iomux_mode(MX31_PIN_CSPI3_MOSI__RXD3);
141         mxc_iomux_mode(MX31_PIN_CSPI3_MISO__TXD3);
142
143         mxc_register_device(&mxc_uart_device2, &uart_pdata);
144
145         mxc_iomux_mode(MX31_PIN_BATT_LINE__OWIRE);
146         mxc_register_device(&mxc_w1_master_device, NULL);
147
148         /* SMSC9215 IRQ pin */
149         mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO));
150         if (!gpio_request(MX31_PIN_GPIO3_1, "pcm037-eth"))
151                 gpio_direction_input(MX31_PIN_GPIO3_1);
152
153         mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
154 }
155
156 /*
157  * This structure defines static mappings for the pcm037 board.
158  */
159 static struct map_desc pcm037_io_desc[] __initdata = {
160         {
161                 .virtual        = AIPS1_BASE_ADDR_VIRT,
162                 .pfn            = __phys_to_pfn(AIPS1_BASE_ADDR),
163                 .length         = AIPS1_SIZE,
164                 .type           = MT_DEVICE_NONSHARED
165         }, {
166                 .virtual        = AIPS2_BASE_ADDR_VIRT,
167                 .pfn            = __phys_to_pfn(AIPS2_BASE_ADDR),
168                 .length         = AIPS2_SIZE,
169                 .type           = MT_DEVICE_NONSHARED
170         },
171 };
172
173 /*
174  * Set up static virtual mappings.
175  */
176 void __init pcm037_map_io(void)
177 {
178         mxc_map_io();
179         iotable_init(pcm037_io_desc, ARRAY_SIZE(pcm037_io_desc));
180 }
181
182 static void __init pcm037_timer_init(void)
183 {
184         mx31_clocks_init(26000000);
185 }
186
187 struct sys_timer pcm037_timer = {
188         .init   = pcm037_timer_init,
189 };
190
191 MACHINE_START(PCM037, "Phytec Phycore pcm037")
192         /* Maintainer: Pengutronix */
193         .phys_io        = AIPS1_BASE_ADDR,
194         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
195         .boot_params    = PHYS_OFFSET + 0x100,
196         .map_io         = pcm037_map_io,
197         .init_irq       = mxc_init_irq,
198         .init_machine   = mxc_board_init,
199         .timer          = &pcm037_timer,
200 MACHINE_END
201