tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved.
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15 * 02110-1301, USA.
16 */
17#include <linux/gpio.h>
18#include <linux/kernel.h>
19#include <linux/irq.h>
20#include <linux/platform_device.h>
21#include <linux/delay.h>
22#include <linux/io.h>
23#include <linux/smsc911x.h>
24#include <linux/usb/msm_hsusb.h>
25#include <linux/clkdev.h>
26#include <linux/memblock.h>
27
28#include <asm/mach-types.h>
29#include <asm/mach/arch.h>
30#include <asm/memory.h>
31#include <asm/setup.h>
32
33#include <mach/clk.h>
34#include <mach/msm_iomap.h>
35#include <mach/dma.h>
36
37#include <mach/vreg.h>
38#include "devices.h"
39#include "gpiomux.h"
40#include "proc_comm.h"
41#include "common.h"
42
43static void __init msm7x30_fixup(struct tag *tag, char **cmdline)
44{
45 for (; tag->hdr.size; tag = tag_next(tag))
46 if (tag->hdr.tag == ATAG_MEM && tag->u.mem.start == 0x200000) {
47 tag->u.mem.start = 0;
48 tag->u.mem.size += SZ_2M;
49 }
50}
51
52static void __init msm7x30_reserve(void)
53{
54 memblock_remove(0x0, SZ_2M);
55}
56
57static int hsusb_phy_init_seq[] = {
58 0x30, 0x32, /* Enable and set Pre-Emphasis Depth to 20% */
59 0x02, 0x36, /* Disable CDR Auto Reset feature */
60 -1
61};
62
63static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
64{
65 int ret;
66
67 if (assert) {
68 ret = clk_reset(link_clk, CLK_RESET_ASSERT);
69 if (ret)
70 pr_err("usb hs_clk assert failed\n");
71 } else {
72 ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
73 if (ret)
74 pr_err("usb hs_clk deassert failed\n");
75 }
76 return ret;
77}
78
79static int hsusb_phy_clk_reset(struct clk *phy_clk)
80{
81 int ret;
82
83 ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
84 if (ret) {
85 pr_err("usb phy clk assert failed\n");
86 return ret;
87 }
88 usleep_range(10000, 12000);
89 ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
90 if (ret)
91 pr_err("usb phy clk deassert failed\n");
92 return ret;
93}
94
95static struct msm_otg_platform_data msm_otg_pdata = {
96 .phy_init_seq = hsusb_phy_init_seq,
97 .mode = USB_DR_MODE_PERIPHERAL,
98 .otg_control = OTG_PHY_CONTROL,
99 .link_clk_reset = hsusb_link_clk_reset,
100 .phy_clk_reset = hsusb_phy_clk_reset,
101};
102
103struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
104#ifdef CONFIG_SERIAL_MSM_CONSOLE
105 [49] = { /* UART2 RFR */
106 .suspended = GPIOMUX_DRV_2MA | GPIOMUX_PULL_DOWN |
107 GPIOMUX_FUNC_2 | GPIOMUX_VALID,
108 },
109 [50] = { /* UART2 CTS */
110 .suspended = GPIOMUX_DRV_2MA | GPIOMUX_PULL_DOWN |
111 GPIOMUX_FUNC_2 | GPIOMUX_VALID,
112 },
113 [51] = { /* UART2 RX */
114 .suspended = GPIOMUX_DRV_2MA | GPIOMUX_PULL_DOWN |
115 GPIOMUX_FUNC_2 | GPIOMUX_VALID,
116 },
117 [52] = { /* UART2 TX */
118 .suspended = GPIOMUX_DRV_2MA | GPIOMUX_PULL_DOWN |
119 GPIOMUX_FUNC_2 | GPIOMUX_VALID,
120 },
121#endif
122};
123
124static struct platform_device *devices[] __initdata = {
125 &msm_clock_7x30,
126 &msm_device_gpio_7x30,
127#if defined(CONFIG_SERIAL_MSM)
128 &msm_device_uart2,
129#endif
130 &msm_device_smd,
131 &msm_device_otg,
132 &msm_device_hsusb,
133 &msm_device_hsusb_host,
134};
135
136static void __init msm7x30_init_irq(void)
137{
138 msm_init_irq();
139}
140
141static void __init msm7x30_init(void)
142{
143 msm_device_otg.dev.platform_data = &msm_otg_pdata;
144 msm_device_hsusb.dev.parent = &msm_device_otg.dev;
145 msm_device_hsusb_host.dev.parent = &msm_device_otg.dev;
146
147 platform_add_devices(devices, ARRAY_SIZE(devices));
148}
149
150static void __init msm7x30_map_io(void)
151{
152 msm_map_msm7x30_io();
153}
154
155static void __init msm7x30_init_late(void)
156{
157 smd_debugfs_init();
158}
159
160MACHINE_START(MSM7X30_SURF, "QCT MSM7X30 SURF")
161 .atag_offset = 0x100,
162 .fixup = msm7x30_fixup,
163 .reserve = msm7x30_reserve,
164 .map_io = msm7x30_map_io,
165 .init_irq = msm7x30_init_irq,
166 .init_machine = msm7x30_init,
167 .init_late = msm7x30_init_late,
168 .init_time = msm7x30_timer_init,
169MACHINE_END
170
171MACHINE_START(MSM7X30_FFA, "QCT MSM7X30 FFA")
172 .atag_offset = 0x100,
173 .fixup = msm7x30_fixup,
174 .reserve = msm7x30_reserve,
175 .map_io = msm7x30_map_io,
176 .init_irq = msm7x30_init_irq,
177 .init_machine = msm7x30_init,
178 .init_late = msm7x30_init_late,
179 .init_time = msm7x30_timer_init,
180MACHINE_END
181
182MACHINE_START(MSM7X30_FLUID, "QCT MSM7X30 FLUID")
183 .atag_offset = 0x100,
184 .fixup = msm7x30_fixup,
185 .reserve = msm7x30_reserve,
186 .map_io = msm7x30_map_io,
187 .init_irq = msm7x30_init_irq,
188 .init_machine = msm7x30_init,
189 .init_late = msm7x30_init_late,
190 .init_time = msm7x30_timer_init,
191MACHINE_END