diff options
Diffstat (limited to 'arch/arm/mach-mx3/mx31ads.c')
-rw-r--r-- | arch/arm/mach-mx3/mx31ads.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mx31ads.c b/arch/arm/mach-mx3/mx31ads.c new file mode 100644 index 00000000000..7e89bdc23a9 --- /dev/null +++ b/arch/arm/mach-mx3/mx31ads.c | |||
@@ -0,0 +1,142 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2000 Deep Blue Solutions Ltd | ||
3 | * Copyright (C) 2002 Shane Nay (shane@minirl.com) | ||
4 | * Copyright 2005-2007 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/types.h> | ||
22 | #include <linux/init.h> | ||
23 | #include <linux/clk.h> | ||
24 | #include <linux/serial_8250.h> | ||
25 | |||
26 | #include <asm/hardware.h> | ||
27 | #include <asm/mach-types.h> | ||
28 | #include <asm/mach/arch.h> | ||
29 | #include <asm/memory.h> | ||
30 | #include <asm/mach/map.h> | ||
31 | #include <asm/arch/common.h> | ||
32 | |||
33 | /*! | ||
34 | * @file mx31ads.c | ||
35 | * | ||
36 | * @brief This file contains the board-specific initialization routines. | ||
37 | * | ||
38 | * @ingroup System | ||
39 | */ | ||
40 | |||
41 | #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) | ||
42 | /*! | ||
43 | * The serial port definition structure. | ||
44 | */ | ||
45 | static struct plat_serial8250_port serial_platform_data[] = { | ||
46 | { | ||
47 | .membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA), | ||
48 | .mapbase = (unsigned long)(CS4_BASE_ADDR + PBC_SC16C652_UARTA), | ||
49 | .irq = EXPIO_INT_XUART_INTA, | ||
50 | .uartclk = 14745600, | ||
51 | .regshift = 0, | ||
52 | .iotype = UPIO_MEM, | ||
53 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ, | ||
54 | }, { | ||
55 | .membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB), | ||
56 | .mapbase = (unsigned long)(CS4_BASE_ADDR + PBC_SC16C652_UARTB), | ||
57 | .irq = EXPIO_INT_XUART_INTB, | ||
58 | .uartclk = 14745600, | ||
59 | .regshift = 0, | ||
60 | .iotype = UPIO_MEM, | ||
61 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ, | ||
62 | }, | ||
63 | {}, | ||
64 | }; | ||
65 | |||
66 | static struct platform_device serial_device = { | ||
67 | .name = "serial8250", | ||
68 | .id = 0, | ||
69 | .dev = { | ||
70 | .platform_data = serial_platform_data, | ||
71 | }, | ||
72 | }; | ||
73 | |||
74 | static int __init mxc_init_extuart(void) | ||
75 | { | ||
76 | return platform_device_register(&serial_device); | ||
77 | } | ||
78 | #else | ||
79 | static inline int mxc_init_extuart(void) | ||
80 | { | ||
81 | return 0; | ||
82 | } | ||
83 | #endif | ||
84 | |||
85 | /*! | ||
86 | * This structure defines static mappings for the i.MX31ADS board. | ||
87 | */ | ||
88 | static struct map_desc mx31ads_io_desc[] __initdata = { | ||
89 | { | ||
90 | .virtual = AIPS1_BASE_ADDR_VIRT, | ||
91 | .pfn = __phys_to_pfn(AIPS1_BASE_ADDR), | ||
92 | .length = AIPS1_SIZE, | ||
93 | .type = MT_NONSHARED_DEVICE | ||
94 | }, { | ||
95 | .virtual = SPBA0_BASE_ADDR_VIRT, | ||
96 | .pfn = __phys_to_pfn(SPBA0_BASE_ADDR), | ||
97 | .length = SPBA0_SIZE, | ||
98 | .type = MT_NONSHARED_DEVICE | ||
99 | }, { | ||
100 | .virtual = AIPS2_BASE_ADDR_VIRT, | ||
101 | .pfn = __phys_to_pfn(AIPS2_BASE_ADDR), | ||
102 | .length = AIPS2_SIZE, | ||
103 | .type = MT_NONSHARED_DEVICE | ||
104 | }, { | ||
105 | .virtual = CS4_BASE_ADDR_VIRT, | ||
106 | .pfn = __phys_to_pfn(CS4_BASE_ADDR), | ||
107 | .length = CS4_SIZE / 2, | ||
108 | .type = MT_DEVICE | ||
109 | }, | ||
110 | }; | ||
111 | |||
112 | /*! | ||
113 | * Set up static virtual mappings. | ||
114 | */ | ||
115 | void __init mx31ads_map_io(void) | ||
116 | { | ||
117 | mxc_map_io(); | ||
118 | iotable_init(mx31ads_io_desc, ARRAY_SIZE(mx31ads_io_desc)); | ||
119 | } | ||
120 | |||
121 | /*! | ||
122 | * Board specific initialization. | ||
123 | */ | ||
124 | static void __init mxc_board_init(void) | ||
125 | { | ||
126 | mxc_init_extuart(); | ||
127 | } | ||
128 | |||
129 | /* | ||
130 | * The following uses standard kernel macros defined in arch.h in order to | ||
131 | * initialize __mach_desc_MX31ADS data structure. | ||
132 | */ | ||
133 | MACHINE_START(MX31ADS, "Freescale MX31ADS") | ||
134 | /* Maintainer: Freescale Semiconductor, Inc. */ | ||
135 | .phys_io = AIPS1_BASE_ADDR, | ||
136 | .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc, | ||
137 | .boot_params = PHYS_OFFSET + 0x100, | ||
138 | .map_io = mx31ads_map_io, | ||
139 | .init_irq = mxc_init_irq, | ||
140 | .init_machine = mxc_board_init, | ||
141 | .timer = &mxc_timer, | ||
142 | MACHINE_END | ||