diff options
Diffstat (limited to 'arch/arm/mach-omap2/cm.c')
-rw-r--r-- | arch/arm/mach-omap2/cm.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/arm/mach-omap2/cm.c b/arch/arm/mach-omap2/cm.c deleted file mode 100644 index 721c3b66740a..000000000000 --- a/arch/arm/mach-omap2/cm.c +++ /dev/null | |||
@@ -1,68 +0,0 @@ | |||
1 | /* | ||
2 | * OMAP2/3 CM module functions | ||
3 | * | ||
4 | * Copyright (C) 2009 Nokia Corporation | ||
5 | * Paul Walmsley | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License version 2 as | ||
9 | * published by the Free Software Foundation. | ||
10 | */ | ||
11 | |||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/module.h> | ||
14 | #include <linux/types.h> | ||
15 | #include <linux/delay.h> | ||
16 | #include <linux/spinlock.h> | ||
17 | #include <linux/list.h> | ||
18 | #include <linux/errno.h> | ||
19 | #include <linux/err.h> | ||
20 | #include <linux/io.h> | ||
21 | |||
22 | #include <asm/atomic.h> | ||
23 | |||
24 | #include <plat/common.h> | ||
25 | |||
26 | #include "cm.h" | ||
27 | #include "cm-regbits-24xx.h" | ||
28 | #include "cm-regbits-34xx.h" | ||
29 | |||
30 | static const u8 cm_idlest_offs[] = { | ||
31 | CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3 | ||
32 | }; | ||
33 | |||
34 | /** | ||
35 | * omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby | ||
36 | * @prcm_mod: PRCM module offset | ||
37 | * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) | ||
38 | * @idlest_shift: shift of the bit in the CM_IDLEST* register to check | ||
39 | * | ||
40 | * XXX document | ||
41 | */ | ||
42 | int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift) | ||
43 | { | ||
44 | int ena = 0, i = 0; | ||
45 | u8 cm_idlest_reg; | ||
46 | u32 mask; | ||
47 | |||
48 | if (!idlest_id || (idlest_id > ARRAY_SIZE(cm_idlest_offs))) | ||
49 | return -EINVAL; | ||
50 | |||
51 | cm_idlest_reg = cm_idlest_offs[idlest_id - 1]; | ||
52 | |||
53 | mask = 1 << idlest_shift; | ||
54 | |||
55 | if (cpu_is_omap24xx()) | ||
56 | ena = mask; | ||
57 | else if (cpu_is_omap34xx()) | ||
58 | ena = 0; | ||
59 | else | ||
60 | BUG(); | ||
61 | |||
62 | /* XXX should be OMAP2 CM */ | ||
63 | omap_test_timeout(((cm_read_mod_reg(prcm_mod, cm_idlest_reg) & mask) == ena), | ||
64 | MAX_MODULE_READY_TIME, i); | ||
65 | |||
66 | return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; | ||
67 | } | ||
68 | |||