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8a453cac PM |
1 | /* |
2 | * ALPHAPROJECT AP-SH4AD-0A Support. | |
3 | * | |
4 | * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd. | |
5 | * Copyright (C) 2010 Matt Fleming | |
6 | * Copyright (C) 2010 Paul Mundt | |
7 | * | |
8 | * This file is subject to the terms and conditions of the GNU General Public | |
9 | * License. See the file "COPYING" in the main directory of this archive | |
10 | * for more details. | |
11 | */ | |
12 | #include <linux/init.h> | |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/io.h> | |
1f8eca12 GL |
15 | #include <linux/regulator/fixed.h> |
16 | #include <linux/regulator/machine.h> | |
8a453cac PM |
17 | #include <linux/smsc911x.h> |
18 | #include <linux/irq.h> | |
19 | #include <linux/clk.h> | |
20 | #include <asm/machvec.h> | |
21 | #include <asm/sizes.h> | |
22 | ||
1f8eca12 GL |
23 | /* Dummy supplies, where voltage doesn't matter */ |
24 | static struct regulator_consumer_supply dummy_supplies[] = { | |
25 | REGULATOR_SUPPLY("vddvario", "smsc911x"), | |
26 | REGULATOR_SUPPLY("vdd33a", "smsc911x"), | |
27 | }; | |
28 | ||
8a453cac PM |
29 | static struct resource smsc911x_resources[] = { |
30 | [0] = { | |
31 | .name = "smsc911x-memory", | |
32 | .start = 0xA4000000, | |
33 | .end = 0xA4000000 + SZ_256 - 1, | |
34 | .flags = IORESOURCE_MEM, | |
35 | }, | |
36 | [1] = { | |
37 | .name = "smsc911x-irq", | |
38 | .start = evt2irq(0x200), | |
39 | .end = evt2irq(0x200), | |
40 | .flags = IORESOURCE_IRQ, | |
41 | }, | |
42 | }; | |
43 | ||
44 | static struct smsc911x_platform_config smsc911x_config = { | |
45 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, | |
46 | .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, | |
47 | .flags = SMSC911X_USE_16BIT, | |
48 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
49 | }; | |
50 | ||
51 | static struct platform_device smsc911x_device = { | |
52 | .name = "smsc911x", | |
53 | .id = -1, | |
54 | .num_resources = ARRAY_SIZE(smsc911x_resources), | |
55 | .resource = smsc911x_resources, | |
56 | .dev = { | |
57 | .platform_data = &smsc911x_config, | |
58 | }, | |
59 | }; | |
60 | ||
61 | static struct platform_device *apsh4ad0a_devices[] __initdata = { | |
62 | &smsc911x_device, | |
63 | }; | |
64 | ||
65 | static int __init apsh4ad0a_devices_setup(void) | |
66 | { | |
1f8eca12 GL |
67 | regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); |
68 | ||
8a453cac PM |
69 | return platform_add_devices(apsh4ad0a_devices, |
70 | ARRAY_SIZE(apsh4ad0a_devices)); | |
71 | } | |
72 | device_initcall(apsh4ad0a_devices_setup); | |
73 | ||
74 | static int apsh4ad0a_mode_pins(void) | |
75 | { | |
76 | int value = 0; | |
77 | ||
78 | /* These are the factory default settings of SW1 and SW2. | |
79 | * If you change these dip switches then you will need to | |
80 | * adjust the values below as well. | |
81 | */ | |
82 | value |= MODE_PIN0; /* Clock Mode 3 */ | |
83 | value |= MODE_PIN1; | |
84 | value &= ~MODE_PIN2; | |
85 | value &= ~MODE_PIN3; | |
86 | value &= ~MODE_PIN4; /* 16-bit Area0 bus width */ | |
87 | value |= MODE_PIN5; | |
88 | value |= MODE_PIN6; | |
89 | value |= MODE_PIN7; /* Normal mode */ | |
90 | value |= MODE_PIN8; /* Little Endian */ | |
91 | value |= MODE_PIN9; /* Crystal resonator */ | |
92 | value &= ~MODE_PIN10; /* 29-bit address mode */ | |
93 | value &= ~MODE_PIN11; /* PCI-E Root port */ | |
94 | value &= ~MODE_PIN12; /* 4 lane + 1 lane */ | |
95 | value |= MODE_PIN13; /* AUD Enable */ | |
96 | value &= ~MODE_PIN14; /* Normal Operation */ | |
97 | ||
98 | return value; | |
99 | } | |
100 | ||
101 | static int apsh4ad0a_clk_init(void) | |
102 | { | |
103 | struct clk *clk; | |
104 | int ret; | |
105 | ||
106 | clk = clk_get(NULL, "extal"); | |
7912825d | 107 | if (IS_ERR(clk)) |
8a453cac PM |
108 | return PTR_ERR(clk); |
109 | ret = clk_set_rate(clk, 33333000); | |
110 | clk_put(clk); | |
111 | ||
112 | return ret; | |
113 | } | |
114 | ||
115 | /* Initialize the board */ | |
116 | static void __init apsh4ad0a_setup(char **cmdline_p) | |
117 | { | |
118 | pr_info("Alpha Project AP-SH4AD-0A support:\n"); | |
119 | } | |
120 | ||
121 | static void __init apsh4ad0a_init_irq(void) | |
122 | { | |
123 | plat_irq_setup_pins(IRQ_MODE_IRQ3210); | |
124 | } | |
125 | ||
126 | /* | |
127 | * The Machine Vector | |
128 | */ | |
129 | static struct sh_machine_vector mv_apsh4ad0a __initmv = { | |
130 | .mv_name = "AP-SH4AD-0A", | |
131 | .mv_setup = apsh4ad0a_setup, | |
132 | .mv_mode_pins = apsh4ad0a_mode_pins, | |
133 | .mv_clk_init = apsh4ad0a_clk_init, | |
134 | .mv_init_irq = apsh4ad0a_init_irq, | |
135 | }; |