board-harmony.c revision 2123552d12168e744271aaf206e5826760fbd857 
1/*
2 * arch/arm/mach-tegra/board-harmony.c
3 *
4 * Copyright (C) 2010 Google, Inc.
5 * Copyright (C) 2011 NVIDIA, Inc.
6 *
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
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 */
17
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/platform_device.h>
21#include <linux/serial_8250.h>
22#include <linux/clk.h>
23#include <linux/dma-mapping.h>
24#include <linux/pda_power.h>
25#include <linux/io.h>
26#include <linux/gpio.h>
27#include <linux/i2c.h>
28
29#include <sound/wm8903.h>
30
31#include <asm/mach-types.h>
32#include <asm/mach/arch.h>
33#include <asm/mach/time.h>
34#include <asm/hardware/gic.h>
35#include <asm/setup.h>
36
37#include <mach/tegra_wm8903_pdata.h>
38#include <mach/iomap.h>
39#include <mach/irqs.h>
40#include <mach/sdhci.h>
41
42#include "board.h"
43#include "board-harmony.h"
44#include "clock.h"
45#include "devices.h"
46#include "gpio-names.h"
47
48static struct plat_serial8250_port debug_uart_platform_data[] = {
49	{
50		.membase	= IO_ADDRESS(TEGRA_UARTD_BASE),
51		.mapbase	= TEGRA_UARTD_BASE,
52		.irq		= INT_UARTD,
53		.flags		= UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
54		.type		= PORT_TEGRA,
55		.iotype		= UPIO_MEM,
56		.regshift	= 2,
57		.uartclk	= 216000000,
58	}, {
59		.flags		= 0
60	}
61};
62
63static struct platform_device debug_uart = {
64	.name = "serial8250",
65	.id = PLAT8250_DEV_PLATFORM,
66	.dev = {
67		.platform_data = debug_uart_platform_data,
68	},
69};
70
71static struct tegra_wm8903_platform_data harmony_audio_pdata = {
72	.gpio_spkr_en		= TEGRA_GPIO_SPKR_EN,
73	.gpio_hp_det		= TEGRA_GPIO_HP_DET,
74	.gpio_hp_mute		= -1,
75	.gpio_int_mic_en	= TEGRA_GPIO_INT_MIC_EN,
76	.gpio_ext_mic_en	= TEGRA_GPIO_EXT_MIC_EN,
77};
78
79static struct platform_device harmony_audio_device = {
80	.name	= "tegra-snd-wm8903",
81	.id	= 0,
82	.dev	= {
83		.platform_data  = &harmony_audio_pdata,
84	},
85};
86
87static struct wm8903_platform_data harmony_wm8903_pdata = {
88	.irq_active_low = 0,
89	.micdet_cfg = 0,
90	.micdet_delay = 100,
91	.gpio_base = HARMONY_GPIO_WM8903(0),
92	.gpio_cfg = {
93		0,
94		0,
95		WM8903_GPIO_CONFIG_ZERO,
96		0,
97		0,
98	},
99};
100
101static struct i2c_board_info __initdata wm8903_board_info = {
102	I2C_BOARD_INFO("wm8903", 0x1a),
103	.platform_data = &harmony_wm8903_pdata,
104};
105
106static void __init harmony_i2c_init(void)
107{
108	platform_device_register(&tegra_i2c_device1);
109	platform_device_register(&tegra_i2c_device2);
110	platform_device_register(&tegra_i2c_device3);
111	platform_device_register(&tegra_i2c_device4);
112
113	wm8903_board_info.irq = gpio_to_irq(TEGRA_GPIO_CDC_IRQ);
114	i2c_register_board_info(0, &wm8903_board_info, 1);
115}
116
117static struct platform_device *harmony_devices[] __initdata = {
118	&debug_uart,
119	&tegra_sdhci_device1,
120	&tegra_sdhci_device2,
121	&tegra_sdhci_device4,
122	&tegra_ehci3_device,
123	&tegra_i2s_device1,
124	&tegra_das_device,
125	&tegra_pcm_device,
126	&harmony_audio_device,
127};
128
129static void __init tegra_harmony_fixup(struct tag *tags, char **cmdline,
130	struct meminfo *mi)
131{
132	mi->nr_banks = 2;
133	mi->bank[0].start = PHYS_OFFSET;
134	mi->bank[0].size = 448 * SZ_1M;
135	mi->bank[1].start = SZ_512M;
136	mi->bank[1].size = SZ_512M;
137}
138
139static __initdata struct tegra_clk_init_table harmony_clk_init_table[] = {
140	/* name		parent		rate		enabled */
141	{ "uartd",	"pll_p",	216000000,	true },
142	{ "pll_a",	"pll_p_out1",	56448000,	true },
143	{ "pll_a_out0",	"pll_a",	11289600,	true },
144	{ "cdev1",	NULL,		0,		true },
145	{ "i2s1",	"pll_a_out0",	11289600,	false},
146	{ "usb3",	"clk_m",	12000000,	true },
147	{ NULL,		NULL,		0,		0},
148};
149
150
151static struct tegra_sdhci_platform_data sdhci_pdata1 = {
152	.cd_gpio	= -1,
153	.wp_gpio	= -1,
154	.power_gpio	= -1,
155};
156
157static struct tegra_sdhci_platform_data sdhci_pdata2 = {
158	.cd_gpio	= TEGRA_GPIO_SD2_CD,
159	.wp_gpio	= TEGRA_GPIO_SD2_WP,
160	.power_gpio	= TEGRA_GPIO_SD2_POWER,
161};
162
163static struct tegra_sdhci_platform_data sdhci_pdata4 = {
164	.cd_gpio	= TEGRA_GPIO_SD4_CD,
165	.wp_gpio	= TEGRA_GPIO_SD4_WP,
166	.power_gpio	= TEGRA_GPIO_SD4_POWER,
167	.is_8bit	= 1,
168};
169
170static void __init tegra_harmony_init(void)
171{
172	tegra_clk_init_from_table(harmony_clk_init_table);
173
174	harmony_pinmux_init();
175
176	tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1;
177	tegra_sdhci_device2.dev.platform_data = &sdhci_pdata2;
178	tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;
179
180	platform_add_devices(harmony_devices, ARRAY_SIZE(harmony_devices));
181	harmony_i2c_init();
182	harmony_regulator_init();
183}
184
185MACHINE_START(HARMONY, "harmony")
186	.atag_offset	= 0x100,
187	.fixup		= tegra_harmony_fixup,
188	.map_io         = tegra_map_common_io,
189	.init_early	= tegra20_init_early,
190	.init_irq       = tegra_init_irq,
191	.handle_irq	= gic_handle_irq,
192	.timer          = &tegra_timer,
193	.init_machine   = tegra_harmony_init,
194	.restart	= tegra_assert_system_reset,
195MACHINE_END
196