• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * OMAP2xxx Clock Management (CM) register definitions
3  *
4  * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
5  * Copyright (C) 2007-2010 Nokia Corporation
6  * Paul Walmsley
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12  * The CM hardware modules on the OMAP2/3 are quite similar to each
13  * other.  The CM modules/instances on OMAP4 are quite different, so
14  * they are handled in a separate file.
15  */
16 #ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_H
17 #define __ARCH_ASM_MACH_OMAP2_CM2XXX_H
18 
19 #include "prcm-common.h"
20 #include "cm2xxx_3xxx.h"
21 
22 #define OMAP2420_CM_REGADDR(module, reg)				\
23 			OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
24 #define OMAP2430_CM_REGADDR(module, reg)				\
25 			OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
26 
27 /*
28  * Module specific CM register offsets from CM_BASE + domain offset
29  * Use cm_{read,write}_mod_reg() with these registers.
30  * These register offsets generally appear in more than one PRCM submodule.
31  */
32 
33 /* OMAP2-specific register offsets */
34 
35 #define OMAP24XX_CM_FCLKEN2				0x0004
36 #define OMAP24XX_CM_ICLKEN4				0x001c
37 #define OMAP24XX_CM_AUTOIDLE4				0x003c
38 #define OMAP24XX_CM_IDLEST4				0x002c
39 
40 /* CM_IDLEST bit field values to indicate deasserted IdleReq */
41 
42 #define OMAP24XX_CM_IDLEST_VAL				0
43 
44 
45 /* Clock management domain register get/set */
46 
47 #ifndef __ASSEMBLER__
48 
49 extern void omap2xxx_cm_set_dpll_disable_autoidle(void);
50 extern void omap2xxx_cm_set_dpll_auto_low_power_stop(void);
51 
52 extern void omap2xxx_cm_set_apll54_disable_autoidle(void);
53 extern void omap2xxx_cm_set_apll54_auto_low_power_stop(void);
54 extern void omap2xxx_cm_set_apll96_disable_autoidle(void);
55 extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void);
56 
57 int omap2xxx_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_id,
58 				  u8 idlest_shift);
59 extern int omap2xxx_cm_fclks_active(void);
60 extern int omap2xxx_cm_mpu_retention_allowed(void);
61 extern u32 omap2xxx_cm_get_core_clk_src(void);
62 extern u32 omap2xxx_cm_get_core_pll_config(void);
63 extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core,
64 					 u32 mdm);
65 
66 int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data);
67 
68 #endif
69 
70 #endif
71