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[~andy/linux] / arch / arm / mach-mx2 / mx27ads.c
1 /*
2  *  Copyright (C) 2000 Deep Blue Solutions Ltd
3  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
4  *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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 as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20
21 #include <linux/platform_device.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/map.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/physmap.h>
26 #include <mach/common.h>
27 #include <mach/hardware.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/time.h>
31 #include <asm/mach/map.h>
32 #include <mach/gpio.h>
33 #include <mach/imx-uart.h>
34 #include <mach/iomux.h>
35 #include <mach/board-mx27ads.h>
36
37 #include "devices.h"
38
39 static unsigned int mx27ads_pins[] = {
40         /* UART0 */
41         PE12_PF_UART1_TXD,
42         PE13_PF_UART1_RXD,
43         PE14_PF_UART1_CTS,
44         PE15_PF_UART1_RTS,
45         /* UART1 */
46         PE3_PF_UART2_CTS,
47         PE4_PF_UART2_RTS,
48         PE6_PF_UART2_TXD,
49         PE7_PF_UART2_RXD,
50         /* UART2 */
51         PE8_PF_UART3_TXD,
52         PE9_PF_UART3_RXD,
53         PE10_PF_UART3_CTS,
54         PE11_PF_UART3_RTS,
55         /* UART3 */
56         PB26_AF_UART4_RTS,
57         PB28_AF_UART4_TXD,
58         PB29_AF_UART4_CTS,
59         PB31_AF_UART4_RXD,
60         /* UART4 */
61         PB18_AF_UART5_TXD,
62         PB19_AF_UART5_RXD,
63         PB20_AF_UART5_CTS,
64         PB21_AF_UART5_RTS,
65         /* UART5 */
66         PB10_AF_UART6_TXD,
67         PB12_AF_UART6_CTS,
68         PB11_AF_UART6_RXD,
69         PB13_AF_UART6_RTS,
70         /* FEC */
71         PD0_AIN_FEC_TXD0,
72         PD1_AIN_FEC_TXD1,
73         PD2_AIN_FEC_TXD2,
74         PD3_AIN_FEC_TXD3,
75         PD4_AOUT_FEC_RX_ER,
76         PD5_AOUT_FEC_RXD1,
77         PD6_AOUT_FEC_RXD2,
78         PD7_AOUT_FEC_RXD3,
79         PD8_AF_FEC_MDIO,
80         PD9_AIN_FEC_MDC,
81         PD10_AOUT_FEC_CRS,
82         PD11_AOUT_FEC_TX_CLK,
83         PD12_AOUT_FEC_RXD0,
84         PD13_AOUT_FEC_RX_DV,
85         PD14_AOUT_FEC_RX_CLK,
86         PD15_AOUT_FEC_COL,
87         PD16_AIN_FEC_TX_ER,
88         PF23_AIN_FEC_TX_EN,
89 };
90
91 /* ADS's NOR flash */
92 static struct physmap_flash_data mx27ads_flash_data = {
93         .width = 2,
94 };
95
96 static struct resource mx27ads_flash_resource = {
97         .start = 0xc0000000,
98         .end = 0xc0000000 + 0x02000000 - 1,
99         .flags = IORESOURCE_MEM,
100
101 };
102
103 static struct platform_device mx27ads_nor_mtd_device = {
104         .name = "physmap-flash",
105         .id = 0,
106         .dev = {
107                 .platform_data = &mx27ads_flash_data,
108         },
109         .num_resources = 1,
110         .resource = &mx27ads_flash_resource,
111 };
112
113 static struct platform_device *platform_devices[] __initdata = {
114         &mx27ads_nor_mtd_device,
115         &mxc_fec_device,
116 };
117
118 static struct imxuart_platform_data uart_pdata[] = {
119         {
120                 .flags = IMXUART_HAVE_RTSCTS,
121         }, {
122                 .flags = IMXUART_HAVE_RTSCTS,
123         }, {
124                 .flags = IMXUART_HAVE_RTSCTS,
125         }, {
126                 .flags = IMXUART_HAVE_RTSCTS,
127         }, {
128                 .flags = IMXUART_HAVE_RTSCTS,
129         }, {
130                 .flags = IMXUART_HAVE_RTSCTS,
131         },
132 };
133
134 static void __init mx27ads_board_init(void)
135 {
136         mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
137                         "mx27ads");
138
139         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
140         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
141         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
142         mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
143         mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
144         mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
145
146         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
147 }
148
149 static void __init mx27ads_timer_init(void)
150 {
151         unsigned long fref = 26000000;
152
153         if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
154                 fref = 27000000;
155
156         mx27_clocks_init(fref);
157 }
158
159 static struct sys_timer mx27ads_timer = {
160         .init   = mx27ads_timer_init,
161 };
162
163 static struct map_desc mx27ads_io_desc[] __initdata = {
164         {
165                 .virtual = PBC_BASE_ADDRESS,
166                 .pfn = __phys_to_pfn(CS4_BASE_ADDR),
167                 .length = SZ_1M,
168                 .type = MT_DEVICE,
169         },
170 };
171
172 static void __init mx27ads_map_io(void)
173 {
174         mx27_map_io();
175         iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
176 }
177
178 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
179         /* maintainer: Freescale Semiconductor, Inc. */
180         .phys_io        = AIPI_BASE_ADDR,
181         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
182         .boot_params    = PHYS_OFFSET + 0x100,
183         .map_io         = mx27ads_map_io,
184         .init_irq       = mxc_init_irq,
185         .init_machine   = mx27ads_board_init,
186         .timer          = &mx27ads_timer,
187 MACHINE_END
188