diff options
Diffstat (limited to 'arch/arm/mach-msm/board-trout-mmc.c')
-rw-r--r-- | arch/arm/mach-msm/board-trout-mmc.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/arch/arm/mach-msm/board-trout-mmc.c b/arch/arm/mach-msm/board-trout-mmc.c deleted file mode 100644 index 3723e55819d6..000000000000 --- a/arch/arm/mach-msm/board-trout-mmc.c +++ /dev/null | |||
@@ -1,185 +0,0 @@ | |||
1 | /* linux/arch/arm/mach-msm/board-trout-mmc.c | ||
2 | ** Author: Brian Swetland <swetland@google.com> | ||
3 | */ | ||
4 | #include <linux/gpio.h> | ||
5 | #include <linux/kernel.h> | ||
6 | #include <linux/init.h> | ||
7 | #include <linux/platform_device.h> | ||
8 | #include <linux/delay.h> | ||
9 | #include <linux/mmc/host.h> | ||
10 | #include <linux/mmc/sdio_ids.h> | ||
11 | #include <linux/err.h> | ||
12 | #include <linux/debugfs.h> | ||
13 | |||
14 | #include <asm/io.h> | ||
15 | |||
16 | #include <mach/vreg.h> | ||
17 | |||
18 | #include <linux/platform_data/mmc-msm_sdcc.h> | ||
19 | |||
20 | #include "devices.h" | ||
21 | |||
22 | #include "board-trout.h" | ||
23 | |||
24 | #include "proc_comm.h" | ||
25 | |||
26 | #define DEBUG_SDSLOT_VDD 1 | ||
27 | |||
28 | /* ---- COMMON ---- */ | ||
29 | static void config_gpio_table(uint32_t *table, int len) | ||
30 | { | ||
31 | int n; | ||
32 | unsigned id; | ||
33 | for(n = 0; n < len; n++) { | ||
34 | id = table[n]; | ||
35 | msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0); | ||
36 | } | ||
37 | } | ||
38 | |||
39 | /* ---- SDCARD ---- */ | ||
40 | |||
41 | static uint32_t sdcard_on_gpio_table[] = { | ||
42 | PCOM_GPIO_CFG(62, 2, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */ | ||
43 | PCOM_GPIO_CFG(63, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */ | ||
44 | PCOM_GPIO_CFG(64, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT3 */ | ||
45 | PCOM_GPIO_CFG(65, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT2 */ | ||
46 | PCOM_GPIO_CFG(66, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */ | ||
47 | PCOM_GPIO_CFG(67, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */ | ||
48 | }; | ||
49 | |||
50 | static uint32_t sdcard_off_gpio_table[] = { | ||
51 | PCOM_GPIO_CFG(62, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */ | ||
52 | PCOM_GPIO_CFG(63, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */ | ||
53 | PCOM_GPIO_CFG(64, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */ | ||
54 | PCOM_GPIO_CFG(65, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */ | ||
55 | PCOM_GPIO_CFG(66, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */ | ||
56 | PCOM_GPIO_CFG(67, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */ | ||
57 | }; | ||
58 | |||
59 | static uint opt_disable_sdcard; | ||
60 | |||
61 | static int __init trout_disablesdcard_setup(char *str) | ||
62 | { | ||
63 | int cal = simple_strtol(str, NULL, 0); | ||
64 | |||
65 | opt_disable_sdcard = cal; | ||
66 | return 1; | ||
67 | } | ||
68 | |||
69 | __setup("board_trout.disable_sdcard=", trout_disablesdcard_setup); | ||
70 | |||
71 | static struct vreg *vreg_sdslot; /* SD slot power */ | ||
72 | |||
73 | struct mmc_vdd_xlat { | ||
74 | int mask; | ||
75 | int level; | ||
76 | }; | ||
77 | |||
78 | static struct mmc_vdd_xlat mmc_vdd_table[] = { | ||
79 | { MMC_VDD_165_195, 1800 }, | ||
80 | { MMC_VDD_20_21, 2050 }, | ||
81 | { MMC_VDD_21_22, 2150 }, | ||
82 | { MMC_VDD_22_23, 2250 }, | ||
83 | { MMC_VDD_23_24, 2350 }, | ||
84 | { MMC_VDD_24_25, 2450 }, | ||
85 | { MMC_VDD_25_26, 2550 }, | ||
86 | { MMC_VDD_26_27, 2650 }, | ||
87 | { MMC_VDD_27_28, 2750 }, | ||
88 | { MMC_VDD_28_29, 2850 }, | ||
89 | { MMC_VDD_29_30, 2950 }, | ||
90 | }; | ||
91 | |||
92 | static unsigned int sdslot_vdd = 0xffffffff; | ||
93 | static unsigned int sdslot_vreg_enabled; | ||
94 | |||
95 | static uint32_t trout_sdslot_switchvdd(struct device *dev, unsigned int vdd) | ||
96 | { | ||
97 | int i, rc; | ||
98 | |||
99 | BUG_ON(!vreg_sdslot); | ||
100 | |||
101 | if (vdd == sdslot_vdd) | ||
102 | return 0; | ||
103 | |||
104 | sdslot_vdd = vdd; | ||
105 | |||
106 | if (vdd == 0) { | ||
107 | #if DEBUG_SDSLOT_VDD | ||
108 | printk("%s: Disabling SD slot power\n", __func__); | ||
109 | #endif | ||
110 | config_gpio_table(sdcard_off_gpio_table, | ||
111 | ARRAY_SIZE(sdcard_off_gpio_table)); | ||
112 | vreg_disable(vreg_sdslot); | ||
113 | sdslot_vreg_enabled = 0; | ||
114 | return 0; | ||
115 | } | ||
116 | |||
117 | if (!sdslot_vreg_enabled) { | ||
118 | rc = vreg_enable(vreg_sdslot); | ||
119 | if (rc) { | ||
120 | printk(KERN_ERR "%s: Error enabling vreg (%d)\n", | ||
121 | __func__, rc); | ||
122 | } | ||
123 | config_gpio_table(sdcard_on_gpio_table, | ||
124 | ARRAY_SIZE(sdcard_on_gpio_table)); | ||
125 | sdslot_vreg_enabled = 1; | ||
126 | } | ||
127 | |||
128 | for (i = 0; i < ARRAY_SIZE(mmc_vdd_table); i++) { | ||
129 | if (mmc_vdd_table[i].mask == (1 << vdd)) { | ||
130 | #if DEBUG_SDSLOT_VDD | ||
131 | printk("%s: Setting level to %u\n", | ||
132 | __func__, mmc_vdd_table[i].level); | ||
133 | #endif | ||
134 | rc = vreg_set_level(vreg_sdslot, | ||
135 | mmc_vdd_table[i].level); | ||
136 | if (rc) { | ||
137 | printk(KERN_ERR | ||
138 | "%s: Error setting vreg level (%d)\n", | ||
139 | __func__, rc); | ||
140 | } | ||
141 | return 0; | ||
142 | } | ||
143 | } | ||
144 | |||
145 | printk(KERN_ERR "%s: Invalid VDD %d specified\n", __func__, vdd); | ||
146 | return 0; | ||
147 | } | ||
148 | |||
149 | static unsigned int trout_sdslot_status(struct device *dev) | ||
150 | { | ||
151 | unsigned int status; | ||
152 | |||
153 | status = (unsigned int) gpio_get_value(TROUT_GPIO_SDMC_CD_N); | ||
154 | return (!status); | ||
155 | } | ||
156 | |||
157 | #define TROUT_MMC_VDD MMC_VDD_165_195 | MMC_VDD_20_21 | MMC_VDD_21_22 \ | ||
158 | | MMC_VDD_22_23 | MMC_VDD_23_24 | MMC_VDD_24_25 \ | ||
159 | | MMC_VDD_25_26 | MMC_VDD_26_27 | MMC_VDD_27_28 \ | ||
160 | | MMC_VDD_28_29 | MMC_VDD_29_30 | ||
161 | |||
162 | static struct msm_mmc_platform_data trout_sdslot_data = { | ||
163 | .ocr_mask = TROUT_MMC_VDD, | ||
164 | .status = trout_sdslot_status, | ||
165 | .translate_vdd = trout_sdslot_switchvdd, | ||
166 | }; | ||
167 | |||
168 | int __init trout_init_mmc(unsigned int sys_rev) | ||
169 | { | ||
170 | sdslot_vreg_enabled = 0; | ||
171 | |||
172 | vreg_sdslot = vreg_get(0, "gp6"); | ||
173 | if (IS_ERR(vreg_sdslot)) | ||
174 | return PTR_ERR(vreg_sdslot); | ||
175 | |||
176 | irq_set_irq_wake(TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 1); | ||
177 | |||
178 | if (!opt_disable_sdcard) | ||
179 | msm_add_sdcc(2, &trout_sdslot_data, | ||
180 | TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 0); | ||
181 | else | ||
182 | printk(KERN_INFO "trout: SD-Card interface disabled\n"); | ||
183 | return 0; | ||
184 | } | ||
185 | |||