-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
yaml --- r: 339683 b: refs/heads/master c: ff4ae5d h: refs/heads/master i: 339681: 95aca3d 339679: 7af1c11 v: v3
- Loading branch information
Paul Walmsley
committed
Oct 21, 2012
1 parent
9c916b7
commit 0fe024c
Showing
25 changed files
with
441 additions
and
271 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 498153995b9ff41279be54fc56facb92f5cad793 | ||
| refs/heads/master: ff4ae5d9319b86f940e410e92659c50f9879ff46 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| /* | ||
| * OMAP2xxx CM module functions | ||
| * | ||
| * Copyright (C) 2009 Nokia Corporation | ||
| * Copyright (C) 2012 Texas Instruments, Inc. | ||
| * Paul Walmsley | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 as | ||
| * published by the Free Software Foundation. | ||
| */ | ||
|
|
||
| #include <linux/kernel.h> | ||
| #include <linux/types.h> | ||
| #include <linux/delay.h> | ||
| #include <linux/errno.h> | ||
| #include <linux/err.h> | ||
| #include <linux/io.h> | ||
|
|
||
| #include "soc.h" | ||
| #include "iomap.h" | ||
| #include "common.h" | ||
| #include "cm.h" | ||
| #include "cm2xxx.h" | ||
| #include "cm-regbits-24xx.h" | ||
|
|
||
| /* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */ | ||
| #define DPLL_AUTOIDLE_DISABLE 0x0 | ||
| #define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP 0x3 | ||
|
|
||
| /* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */ | ||
| #define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0 | ||
| #define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3 | ||
|
|
||
| static const u8 omap2xxx_cm_idlest_offs[] = { | ||
| CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3, OMAP24XX_CM_IDLEST4 | ||
| }; | ||
|
|
||
| /* | ||
| * | ||
| */ | ||
|
|
||
| static void _write_clktrctrl(u8 c, s16 module, u32 mask) | ||
| { | ||
| u32 v; | ||
|
|
||
| v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); | ||
| v &= ~mask; | ||
| v |= c << __ffs(mask); | ||
| omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL); | ||
| } | ||
|
|
||
| bool omap2xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask) | ||
| { | ||
| u32 v; | ||
|
|
||
| v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); | ||
| v &= mask; | ||
| v >>= __ffs(mask); | ||
|
|
||
| return (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; | ||
| } | ||
|
|
||
| void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) | ||
| { | ||
| _write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask); | ||
| } | ||
|
|
||
| void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask) | ||
| { | ||
| _write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask); | ||
| } | ||
|
|
||
| /* | ||
| * DPLL autoidle control | ||
| */ | ||
|
|
||
| static void _omap2xxx_set_dpll_autoidle(u8 m) | ||
| { | ||
| u32 v; | ||
|
|
||
| v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); | ||
| v &= ~OMAP24XX_AUTO_DPLL_MASK; | ||
| v |= m << OMAP24XX_AUTO_DPLL_SHIFT; | ||
| omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); | ||
| } | ||
|
|
||
| void omap2xxx_cm_set_dpll_disable_autoidle(void) | ||
| { | ||
| _omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP); | ||
| } | ||
|
|
||
| void omap2xxx_cm_set_dpll_auto_low_power_stop(void) | ||
| { | ||
| _omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE); | ||
| } | ||
|
|
||
| /* | ||
| * APLL autoidle control | ||
| */ | ||
|
|
||
| static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask) | ||
| { | ||
| u32 v; | ||
|
|
||
| v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); | ||
| v &= ~mask; | ||
| v |= m << __ffs(mask); | ||
| omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); | ||
| } | ||
|
|
||
| void omap2xxx_cm_set_apll54_disable_autoidle(void) | ||
| { | ||
| _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP, | ||
| OMAP24XX_AUTO_54M_MASK); | ||
| } | ||
|
|
||
| void omap2xxx_cm_set_apll54_auto_low_power_stop(void) | ||
| { | ||
| _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE, | ||
| OMAP24XX_AUTO_54M_MASK); | ||
| } | ||
|
|
||
| void omap2xxx_cm_set_apll96_disable_autoidle(void) | ||
| { | ||
| _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP, | ||
| OMAP24XX_AUTO_96M_MASK); | ||
| } | ||
|
|
||
| void omap2xxx_cm_set_apll96_auto_low_power_stop(void) | ||
| { | ||
| _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE, | ||
| OMAP24XX_AUTO_96M_MASK); | ||
| } | ||
|
|
||
| /* | ||
| * | ||
| */ | ||
|
|
||
| /** | ||
| * omap2xxx_cm_wait_module_ready - wait for a module to leave idle or standby | ||
| * @prcm_mod: PRCM module offset | ||
| * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) | ||
| * @idlest_shift: shift of the bit in the CM_IDLEST* register to check | ||
| * | ||
| * Wait for the PRCM to indicate that the module identified by | ||
| * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon | ||
| * success or -EBUSY if the module doesn't enable in time. | ||
| */ | ||
| int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift) | ||
| { | ||
| int ena = 0, i = 0; | ||
| u8 cm_idlest_reg; | ||
| u32 mask; | ||
|
|
||
| if (!idlest_id || (idlest_id > ARRAY_SIZE(omap2xxx_cm_idlest_offs))) | ||
| return -EINVAL; | ||
|
|
||
| cm_idlest_reg = omap2xxx_cm_idlest_offs[idlest_id - 1]; | ||
|
|
||
| mask = 1 << idlest_shift; | ||
| ena = mask; | ||
|
|
||
| omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & | ||
| mask) == ena), MAX_MODULE_READY_TIME, i); | ||
|
|
||
| return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; | ||
| } |
Oops, something went wrong.