blob: d464d068a4a606386707226cd2f4c8e89c1cf28d [file] [log] [blame]
Fabio Estevam1553a1e2008-11-12 15:38:39 +01001/*
2 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
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#include <linux/clk.h>
22#include <linux/irq.h>
23
24#include <mach/hardware.h>
25#include <asm/mach-types.h>
26#include <asm/mach/arch.h>
27#include <asm/mach/time.h>
28#include <asm/memory.h>
29#include <asm/mach/map.h>
30#include <mach/common.h>
31#include <mach/board-mx31pdk.h>
32#include <mach/imx-uart.h>
33#include <mach/iomux-mx3.h>
34#include "devices.h"
35
36/*!
37 * @file mx31pdk.c
38 *
39 * @brief This file contains the board-specific initialization routines.
40 *
41 * @ingroup System
42 */
43
44static struct imxuart_platform_data uart_pdata = {
45 .flags = IMXUART_HAVE_RTSCTS,
46};
47
48static inline void mxc_init_imx_uart(void)
49{
50 mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
51 mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
52 mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
53 mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
54
55 mxc_register_device(&mxc_uart_device0, &uart_pdata);
56}
57
58/*!
59 * This structure defines static mappings for the i.MX31PDK board.
60 */
61static struct map_desc mx31pdk_io_desc[] __initdata = {
62 {
63 .virtual = AIPS1_BASE_ADDR_VIRT,
64 .pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
65 .length = AIPS1_SIZE,
66 .type = MT_DEVICE_NONSHARED
67 }, {
68 .virtual = AIPS2_BASE_ADDR_VIRT,
69 .pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
70 .length = AIPS2_SIZE,
71 .type = MT_DEVICE_NONSHARED
72 },
73};
74
75/*!
76 * Set up static virtual mappings.
77 */
78static void __init mx31pdk_map_io(void)
79{
80 mxc_map_io();
81 iotable_init(mx31pdk_io_desc, ARRAY_SIZE(mx31pdk_io_desc));
82}
83
84/*!
85 * Board specific initialization.
86 */
87static void __init mxc_board_init(void)
88{
89 mxc_init_imx_uart();
90}
91
92static void __init mx31pdk_timer_init(void)
93{
94 mxc_clocks_init(26000000);
95 mxc_timer_init("ipg_clk.0");
96}
97
98static struct sys_timer mx31pdk_timer = {
99 .init = mx31pdk_timer_init,
100};
101
102/*
103 * The following uses standard kernel macros defined in arch.h in order to
104 * initialize __mach_desc_MX31PDK data structure.
105 */
106MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
107 /* Maintainer: Freescale Semiconductor, Inc. */
108 .phys_io = AIPS1_BASE_ADDR,
109 .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
110 .boot_params = PHYS_OFFSET + 0x100,
111 .map_io = mx31pdk_map_io,
112 .init_irq = mxc_init_irq,
113 .init_machine = mxc_board_init,
114 .timer = &mx31pdk_timer,
115MACHINE_END