diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-sx1-mmc.c')
-rw-r--r-- | arch/arm/mach-omap1/board-sx1-mmc.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-sx1-mmc.c b/arch/arm/mach-omap1/board-sx1-mmc.c new file mode 100644 index 000000000000..8c93d47719e8 --- /dev/null +++ b/arch/arm/mach-omap1/board-sx1-mmc.c | |||
@@ -0,0 +1,124 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-omap1/board-sx1-mmc.c | ||
3 | * | ||
4 | * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT | ||
5 | * Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br> | ||
6 | * | ||
7 | * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is: | ||
8 | * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License version 2 as | ||
12 | * published by the Free Software Foundation. | ||
13 | */ | ||
14 | |||
15 | #include <asm/arch/hardware.h> | ||
16 | #include <asm/arch/mmc.h> | ||
17 | #include <asm/arch/gpio.h> | ||
18 | |||
19 | #ifdef CONFIG_MMC_OMAP | ||
20 | static int slot_cover_open; | ||
21 | static struct device *mmc_device; | ||
22 | |||
23 | static int sx1_mmc_set_power(struct device *dev, int slot, int power_on, | ||
24 | int vdd) | ||
25 | { | ||
26 | int err; | ||
27 | u8 dat = 0; | ||
28 | |||
29 | #ifdef CONFIG_MMC_DEBUG | ||
30 | dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, | ||
31 | power_on ? "on" : "off", vdd); | ||
32 | #endif | ||
33 | |||
34 | if (slot != 0) { | ||
35 | dev_err(dev, "No such slot %d\n", slot + 1); | ||
36 | return -ENODEV; | ||
37 | } | ||
38 | |||
39 | err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); | ||
40 | if (err < 0) | ||
41 | return err; | ||
42 | |||
43 | if (power_on) | ||
44 | dat |= SOFIA_MMC_POWER; | ||
45 | else | ||
46 | dat &= ~SOFIA_MMC_POWER; | ||
47 | |||
48 | return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); | ||
49 | } | ||
50 | |||
51 | static int sx1_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) | ||
52 | { | ||
53 | #ifdef CONFIG_MMC_DEBUG | ||
54 | dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1, | ||
55 | bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); | ||
56 | #endif | ||
57 | if (slot != 0) { | ||
58 | dev_err(dev, "No such slot %d\n", slot + 1); | ||
59 | return -ENODEV; | ||
60 | } | ||
61 | |||
62 | return 0; | ||
63 | } | ||
64 | |||
65 | static int sx1_mmc_get_cover_state(struct device *dev, int slot) | ||
66 | { | ||
67 | BUG_ON(slot != 0); | ||
68 | |||
69 | return slot_cover_open; | ||
70 | } | ||
71 | |||
72 | void sx1_mmc_slot_cover_handler(void *arg, int state) | ||
73 | { | ||
74 | if (mmc_device == NULL) | ||
75 | return; | ||
76 | |||
77 | slot_cover_open = state; | ||
78 | omap_mmc_notify_cover_event(mmc_device, 0, state); | ||
79 | } | ||
80 | |||
81 | static int sx1_mmc_late_init(struct device *dev) | ||
82 | { | ||
83 | int ret = 0; | ||
84 | |||
85 | mmc_device = dev; | ||
86 | |||
87 | return ret; | ||
88 | } | ||
89 | |||
90 | static void sx1_mmc_cleanup(struct device *dev) | ||
91 | { | ||
92 | } | ||
93 | |||
94 | static struct omap_mmc_platform_data sx1_mmc_data = { | ||
95 | .nr_slots = 1, | ||
96 | .switch_slot = NULL, | ||
97 | .init = sx1_mmc_late_init, | ||
98 | .cleanup = sx1_mmc_cleanup, | ||
99 | .slots[0] = { | ||
100 | .set_power = sx1_mmc_set_power, | ||
101 | .set_bus_mode = sx1_mmc_set_bus_mode, | ||
102 | .get_ro = NULL, | ||
103 | .get_cover_state = sx1_mmc_get_cover_state, | ||
104 | .ocr_mask = MMC_VDD_28_29 | MMC_VDD_30_31 | | ||
105 | MMC_VDD_32_33 | MMC_VDD_33_34, | ||
106 | .name = "mmcblk", | ||
107 | }, | ||
108 | }; | ||
109 | |||
110 | void __init sx1_mmc_init(void) | ||
111 | { | ||
112 | omap_set_mmc_info(1, &sx1_mmc_data); | ||
113 | } | ||
114 | |||
115 | #else | ||
116 | |||
117 | void __init sx1_mmc_init(void) | ||
118 | { | ||
119 | } | ||
120 | |||
121 | void sx1_mmc_slot_cover_handler(void *arg, int state) | ||
122 | { | ||
123 | } | ||
124 | #endif | ||