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8d747cdb DW |
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 | */ | |
2f8163ba | 17 | #include <linux/gpio.h> |
8d747cdb DW |
18 | #include <linux/kernel.h> |
19 | #include <linux/irq.h> | |
8d747cdb DW |
20 | #include <linux/platform_device.h> |
21 | #include <linux/delay.h> | |
8d747cdb DW |
22 | #include <linux/io.h> |
23 | #include <linux/smsc911x.h> | |
5155e2c7 | 24 | #include <linux/usb/msm_hsusb.h> |
bd32344a | 25 | #include <linux/clkdev.h> |
9e775ad1 | 26 | #include <linux/memblock.h> |
8d747cdb DW |
27 | |
28 | #include <asm/mach-types.h> | |
29 | #include <asm/mach/arch.h> | |
f4117ac9 | 30 | #include <asm/memory.h> |
8d747cdb DW |
31 | #include <asm/setup.h> |
32 | ||
5146d771 | 33 | #include <mach/clk.h> |
8d747cdb | 34 | #include <mach/msm_iomap.h> |
8d747cdb DW |
35 | #include <mach/dma.h> |
36 | ||
37 | #include <mach/vreg.h> | |
8d747cdb | 38 | #include "devices.h" |
ba5499eb | 39 | #include "gpiomux.h" |
90e37c57 | 40 | #include "proc_comm.h" |
4312a7ef | 41 | #include "common.h" |
8d747cdb | 42 | |
1c2f87c2 | 43 | static void __init msm7x30_fixup(struct tag *tag, char **cmdline) |
9e775ad1 SB |
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 | ||
52 | static void __init msm7x30_reserve(void) | |
53 | { | |
54 | memblock_remove(0x0, SZ_2M); | |
55 | } | |
56 | ||
5155e2c7 PK |
57 | static 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 | ||
5146d771 II |
63 | static 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 | ||
79 | static 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 | ||
5155e2c7 PK |
95 | static struct msm_otg_platform_data msm_otg_pdata = { |
96 | .phy_init_seq = hsusb_phy_init_seq, | |
971232cf | 97 | .mode = USB_DR_MODE_PERIPHERAL, |
5155e2c7 | 98 | .otg_control = OTG_PHY_CONTROL, |
5146d771 II |
99 | .link_clk_reset = hsusb_link_clk_reset, |
100 | .phy_clk_reset = hsusb_phy_clk_reset, | |
5155e2c7 PK |
101 | }; |
102 | ||
ba5499eb DZ |
103 | struct 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 | ||
8d747cdb | 124 | static struct platform_device *devices[] __initdata = { |
421faca0 | 125 | &msm_clock_7x30, |
7bce696b | 126 | &msm_device_gpio_7x30, |
90e37c57 DW |
127 | #if defined(CONFIG_SERIAL_MSM) || defined(CONFIG_MSM_SERIAL_DEBUGGER) |
128 | &msm_device_uart2, | |
129 | #endif | |
a8855e9c | 130 | &msm_device_smd, |
5155e2c7 PK |
131 | &msm_device_otg, |
132 | &msm_device_hsusb, | |
133 | &msm_device_hsusb_host, | |
8d747cdb DW |
134 | }; |
135 | ||
136 | static void __init msm7x30_init_irq(void) | |
137 | { | |
138 | msm_init_irq(); | |
139 | } | |
140 | ||
8d747cdb DW |
141 | static void __init msm7x30_init(void) |
142 | { | |
5155e2c7 PK |
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 | ||
8d747cdb | 147 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
8d747cdb DW |
148 | } |
149 | ||
150 | static void __init msm7x30_map_io(void) | |
151 | { | |
8d747cdb | 152 | msm_map_msm7x30_io(); |
8d747cdb DW |
153 | } |
154 | ||
c633c531 SG |
155 | static void __init msm7x30_init_late(void) |
156 | { | |
157 | smd_debugfs_init(); | |
158 | } | |
159 | ||
8d747cdb | 160 | MACHINE_START(MSM7X30_SURF, "QCT MSM7X30 SURF") |
f631dd41 | 161 | .atag_offset = 0x100, |
9e775ad1 SB |
162 | .fixup = msm7x30_fixup, |
163 | .reserve = msm7x30_reserve, | |
8d747cdb DW |
164 | .map_io = msm7x30_map_io, |
165 | .init_irq = msm7x30_init_irq, | |
166 | .init_machine = msm7x30_init, | |
c633c531 | 167 | .init_late = msm7x30_init_late, |
6bb27d73 | 168 | .init_time = msm7x30_timer_init, |
8d747cdb DW |
169 | MACHINE_END |
170 | ||
171 | MACHINE_START(MSM7X30_FFA, "QCT MSM7X30 FFA") | |
f631dd41 | 172 | .atag_offset = 0x100, |
9e775ad1 SB |
173 | .fixup = msm7x30_fixup, |
174 | .reserve = msm7x30_reserve, | |
8d747cdb DW |
175 | .map_io = msm7x30_map_io, |
176 | .init_irq = msm7x30_init_irq, | |
177 | .init_machine = msm7x30_init, | |
c633c531 | 178 | .init_late = msm7x30_init_late, |
6bb27d73 | 179 | .init_time = msm7x30_timer_init, |
8d747cdb DW |
180 | MACHINE_END |
181 | ||
182 | MACHINE_START(MSM7X30_FLUID, "QCT MSM7X30 FLUID") | |
f631dd41 | 183 | .atag_offset = 0x100, |
9e775ad1 SB |
184 | .fixup = msm7x30_fixup, |
185 | .reserve = msm7x30_reserve, | |
8d747cdb DW |
186 | .map_io = msm7x30_map_io, |
187 | .init_irq = msm7x30_init_irq, | |
188 | .init_machine = msm7x30_init, | |
c633c531 | 189 | .init_late = msm7x30_init_late, |
6bb27d73 | 190 | .init_time = msm7x30_timer_init, |
8d747cdb | 191 | MACHINE_END |