diff options
author | Michael Williamson <michael.williamson@criticallink.com> | 2010-09-05 13:29:39 -0400 |
---|---|---|
committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-09-24 10:40:29 -0400 |
commit | 8774882394190fe52d1df449b1e1c6cff9c3088c (patch) | |
tree | d5af8c6b974617863901ec56e28f376d2f6bed13 /arch | |
parent | b41547c153436712daef544c0f18547fcb70f4ac (diff) |
davinci: Add I2C0 devices to MityDSP-L138/MityARM-1808 platform
This patch adds the i2c0 bus and attached devices to the MityDSP-L138
and MityARM-1808 davinci SoM. Included is a TPS65023 voltage regulator
needed for power management and a small 24c02 EPROM that contains
factory configuration data.
Signed-off-by: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-davinci/board-mityomapl138.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c index 7146916fa498..84d5aff50de4 100644 --- a/arch/arm/mach-davinci/board-mityomapl138.c +++ b/arch/arm/mach-davinci/board-mityomapl138.c | |||
@@ -13,6 +13,8 @@ | |||
13 | #include <linux/console.h> | 13 | #include <linux/console.h> |
14 | #include <linux/platform_device.h> | 14 | #include <linux/platform_device.h> |
15 | #include <linux/mtd/partitions.h> | 15 | #include <linux/mtd/partitions.h> |
16 | #include <linux/regulator/machine.h> | ||
17 | #include <linux/i2c.h> | ||
16 | 18 | ||
17 | #include <asm/mach-types.h> | 19 | #include <asm/mach-types.h> |
18 | #include <asm/mach/arch.h> | 20 | #include <asm/mach/arch.h> |
@@ -25,6 +27,141 @@ | |||
25 | #define MITYOMAPL138_PHY_MASK 0x08 /* hardcoded for now */ | 27 | #define MITYOMAPL138_PHY_MASK 0x08 /* hardcoded for now */ |
26 | #define MITYOMAPL138_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ | 28 | #define MITYOMAPL138_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ |
27 | 29 | ||
30 | static struct davinci_i2c_platform_data mityomap_i2c_0_pdata = { | ||
31 | .bus_freq = 100, /* kHz */ | ||
32 | .bus_delay = 0, /* usec */ | ||
33 | }; | ||
34 | |||
35 | /* TPS65023 voltage regulator support */ | ||
36 | /* 1.2V Core */ | ||
37 | struct regulator_consumer_supply tps65023_dcdc1_consumers[] = { | ||
38 | { | ||
39 | .supply = "cvdd", | ||
40 | }, | ||
41 | }; | ||
42 | |||
43 | /* 1.8V */ | ||
44 | struct regulator_consumer_supply tps65023_dcdc2_consumers[] = { | ||
45 | { | ||
46 | .supply = "usb0_vdda18", | ||
47 | }, | ||
48 | { | ||
49 | .supply = "usb1_vdda18", | ||
50 | }, | ||
51 | { | ||
52 | .supply = "ddr_dvdd18", | ||
53 | }, | ||
54 | { | ||
55 | .supply = "sata_vddr", | ||
56 | }, | ||
57 | }; | ||
58 | |||
59 | /* 1.2V */ | ||
60 | struct regulator_consumer_supply tps65023_dcdc3_consumers[] = { | ||
61 | { | ||
62 | .supply = "sata_vdd", | ||
63 | }, | ||
64 | { | ||
65 | .supply = "usb_cvdd", | ||
66 | }, | ||
67 | { | ||
68 | .supply = "pll0_vdda", | ||
69 | }, | ||
70 | { | ||
71 | .supply = "pll1_vdda", | ||
72 | }, | ||
73 | }; | ||
74 | |||
75 | /* 1.8V Aux LDO, not used */ | ||
76 | struct regulator_consumer_supply tps65023_ldo1_consumers[] = { | ||
77 | { | ||
78 | .supply = "1.8v_aux", | ||
79 | }, | ||
80 | }; | ||
81 | |||
82 | /* FPGA VCC Aux (2.5 or 3.3) LDO */ | ||
83 | struct regulator_consumer_supply tps65023_ldo2_consumers[] = { | ||
84 | { | ||
85 | .supply = "vccaux", | ||
86 | }, | ||
87 | }; | ||
88 | |||
89 | struct regulator_init_data tps65023_regulator_data[] = { | ||
90 | /* dcdc1 */ | ||
91 | { | ||
92 | .constraints = { | ||
93 | .min_uV = 1150000, | ||
94 | .max_uV = 1350000, | ||
95 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | | ||
96 | REGULATOR_CHANGE_STATUS, | ||
97 | .boot_on = 1, | ||
98 | }, | ||
99 | .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc1_consumers), | ||
100 | .consumer_supplies = tps65023_dcdc1_consumers, | ||
101 | }, | ||
102 | /* dcdc2 */ | ||
103 | { | ||
104 | .constraints = { | ||
105 | .min_uV = 1800000, | ||
106 | .max_uV = 1800000, | ||
107 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, | ||
108 | .boot_on = 1, | ||
109 | }, | ||
110 | .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc2_consumers), | ||
111 | .consumer_supplies = tps65023_dcdc2_consumers, | ||
112 | }, | ||
113 | /* dcdc3 */ | ||
114 | { | ||
115 | .constraints = { | ||
116 | .min_uV = 1200000, | ||
117 | .max_uV = 1200000, | ||
118 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, | ||
119 | .boot_on = 1, | ||
120 | }, | ||
121 | .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc3_consumers), | ||
122 | .consumer_supplies = tps65023_dcdc3_consumers, | ||
123 | }, | ||
124 | /* ldo1 */ | ||
125 | { | ||
126 | .constraints = { | ||
127 | .min_uV = 1800000, | ||
128 | .max_uV = 1800000, | ||
129 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, | ||
130 | .boot_on = 1, | ||
131 | }, | ||
132 | .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo1_consumers), | ||
133 | .consumer_supplies = tps65023_ldo1_consumers, | ||
134 | }, | ||
135 | /* ldo2 */ | ||
136 | { | ||
137 | .constraints = { | ||
138 | .min_uV = 2500000, | ||
139 | .max_uV = 3300000, | ||
140 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | | ||
141 | REGULATOR_CHANGE_STATUS, | ||
142 | .boot_on = 1, | ||
143 | }, | ||
144 | .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo2_consumers), | ||
145 | .consumer_supplies = tps65023_ldo2_consumers, | ||
146 | }, | ||
147 | }; | ||
148 | |||
149 | static struct i2c_board_info __initdata mityomap_tps65023_info[] = { | ||
150 | { | ||
151 | I2C_BOARD_INFO("tps65023", 0x48), | ||
152 | .platform_data = &tps65023_regulator_data[0], | ||
153 | }, | ||
154 | { | ||
155 | I2C_BOARD_INFO("24c02", 0x50), | ||
156 | }, | ||
157 | }; | ||
158 | |||
159 | static int __init pmic_tps65023_init(void) | ||
160 | { | ||
161 | return i2c_register_board_info(1, mityomap_tps65023_info, | ||
162 | ARRAY_SIZE(mityomap_tps65023_info)); | ||
163 | } | ||
164 | |||
28 | /* | 165 | /* |
29 | * MityDSP-L138 includes a 256 MByte large-page NAND flash | 166 | * MityDSP-L138 includes a 256 MByte large-page NAND flash |
30 | * (128K blocks). | 167 | * (128K blocks). |
@@ -172,6 +309,14 @@ static void __init mityomapl138_init(void) | |||
172 | 309 | ||
173 | davinci_serial_init(&mityomapl138_uart_config); | 310 | davinci_serial_init(&mityomapl138_uart_config); |
174 | 311 | ||
312 | ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata); | ||
313 | if (ret) | ||
314 | pr_warning("i2c0 registration failed: %d\n", ret); | ||
315 | |||
316 | ret = pmic_tps65023_init(); | ||
317 | if (ret) | ||
318 | pr_warning("TPS65023 PMIC init failed: %d\n", ret); | ||
319 | |||
175 | mityomapl138_setup_nand(); | 320 | mityomapl138_setup_nand(); |
176 | 321 | ||
177 | mityomapl138_config_emac(); | 322 | mityomapl138_config_emac(); |