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dmitry pervushin45d91082009-04-22 23:57:05 +01001/*
2 * Freescale STMP37XX development board support
3 *
4 * Embedded Alley Solutions, Inc <source@embeddedalley.com>
5 *
6 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
7 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
8 */
9
10/*
11 * The code contained herein is licensed under the GNU General Public
12 * License. You may obtain a copy of the GNU General Public License
13 * Version 2 or later at the following locations:
14 *
15 * http://www.opensource.org/licenses/gpl-license.html
16 * http://www.gnu.org/copyleft/gpl.html
17 */
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/device.h>
21#include <linux/platform_device.h>
22#include <asm/setup.h>
23#include <asm/mach-types.h>
24#include <asm/mach/arch.h>
25
26#include <mach/stmp3xxx.h>
27#include <mach/pins.h>
28#include <mach/pinmux.h>
29#include "stmp37xx.h"
30
31/*
32 * List of STMP37xx development board specific devices
33 */
34static struct platform_device *stmp37xx_devb_devices[] = {
35 &stmp3xxx_dbguart,
dmitry pervushinc11c2212009-06-04 13:51:05 +010036 &stmp3xxx_appuart,
dmitry pervushin45d91082009-04-22 23:57:05 +010037};
38
39static struct pin_desc dbguart_pins_0[] = {
40 { PINID_PWM0, PIN_FUN3, },
41 { PINID_PWM1, PIN_FUN3, },
42};
43
dmitry pervushinc11c2212009-06-04 13:51:05 +010044struct pin_desc appuart_pins_0[] = {
45 { PINID_UART2_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
46 { PINID_UART2_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
47 { PINID_UART2_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
48 { PINID_UART2_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
49};
50
51static struct pin_group appuart_pins[] = {
52 [0] = {
53 .pins = appuart_pins_0,
54 .nr_pins = ARRAY_SIZE(appuart_pins_0),
55 },
56 /* 37xx has the only app uart */
57};
58
dmitry pervushin45d91082009-04-22 23:57:05 +010059static struct pin_group dbguart_pins[] = {
60 [0] = {
61 .pins = dbguart_pins_0,
62 .nr_pins = ARRAY_SIZE(dbguart_pins_0),
63 },
64};
65
66static int dbguart_pins_control(int id, int request)
67{
68 int r = 0;
69
70 if (request)
71 r = stmp3xxx_request_pin_group(&dbguart_pins[id], "debug uart");
72 else
73 stmp3xxx_release_pin_group(&dbguart_pins[id], "debug uart");
74 return r;
75}
76
77
78static void __init stmp37xx_devb_init(void)
79{
80 stmp3xxx_pinmux_init(NR_REAL_IRQS);
81
82 /* Init STMP3xxx platform */
83 stmp3xxx_init();
84
85 stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control;
dmitry pervushinc11c2212009-06-04 13:51:05 +010086 stmp3xxx_appuart.dev.platform_data = appuart_pins;
87
dmitry pervushin45d91082009-04-22 23:57:05 +010088 /* Add STMP37xx development board devices */
89 platform_add_devices(stmp37xx_devb_devices,
90 ARRAY_SIZE(stmp37xx_devb_devices));
91}
92
93MACHINE_START(STMP37XX, "STMP37XX")
94 .phys_io = 0x80000000,
95 .io_pg_offst = ((0xf0000000) >> 18) & 0xfffc,
96 .boot_params = 0x40000100,
97 .map_io = stmp37xx_map_io,
98 .init_irq = stmp37xx_init_irq,
99 .timer = &stmp3xxx_timer,
100 .init_machine = stmp37xx_devb_init,
101MACHINE_END