projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 81b34fbe PW |
1 | /* |
| 2 | * clock2430.c - OMAP2430-specific clock integration code | |
| 3 | * | |
| 4 | * Copyright (C) 2005-2008 Texas Instruments, Inc. | |
| 5 | * Copyright (C) 2004-2010 Nokia Corporation | |
| 6 | * | |
| 7 | * Contacts: | |
| 8 | * Richard Woodruff <r-woodruff2@ti.com> | |
| 9 | * Paul Walmsley | |
| 10 | * | |
| 11 | * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, | |
| 12 | * Gordon McNutt and RidgeRun, Inc. | |
| 13 | * | |
| 14 | * This program is free software; you can redistribute it and/or modify | |
| 15 | * it under the terms of the GNU General Public License version 2 as | |
| 16 | * published by the Free Software Foundation. | |
| 17 | */ | |
| 18 | #undef DEBUG | |
| 19 | ||
| 20 | #include <linux/kernel.h> | |
| 21 | #include <linux/clk.h> | |
| 22 | #include <linux/io.h> | |
| 23 | ||
| 24 | #include <plat/clock.h> | |
| 25 | ||
| ee0839c2 | 26 | #include "iomap.h" |
| 81b34fbe PW |
27 | #include "clock.h" |
| 28 | #include "clock2xxx.h" | |
| 59fb659b | 29 | #include "cm2xxx_3xxx.h" |
| 81b34fbe PW |
30 | #include "cm-regbits-24xx.h" |
| 31 | ||
| 32 | /** | |
| 33 | * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS | |
| 34 | * @clk: struct clk * being enabled | |
| 35 | * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into | |
| 36 | * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into | |
| 37 | * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator | |
| 38 | * | |
| 39 | * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the | |
| 40 | * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function | |
| 41 | * passes back the correct CM_IDLEST register address for I2CHS | |
| 42 | * modules. No return value. | |
| 43 | */ | |
| 44 | static void omap2430_clk_i2chs_find_idlest(struct clk *clk, | |
| 45 | void __iomem **idlest_reg, | |
| 46 | u8 *idlest_bit, | |
| 47 | u8 *idlest_val) | |
| 48 | { | |
| 49 | *idlest_reg = OMAP2430_CM_REGADDR(CORE_MOD, CM_IDLEST); | |
| 50 | *idlest_bit = clk->enable_bit; | |
| 51 | *idlest_val = OMAP24XX_CM_IDLEST_VAL; | |
| 52 | } | |
| 53 | ||
| 54 | /* 2430 I2CHS has non-standard IDLEST register */ | |
| 55 | const struct clkops clkops_omap2430_i2chs_wait = { | |
| 56 | .enable = omap2_dflt_clk_enable, | |
| 57 | .disable = omap2_dflt_clk_disable, | |
| 58 | .find_idlest = omap2430_clk_i2chs_find_idlest, | |
| 59 | .find_companion = omap2_clk_dflt_find_companion, | |
| 60 | }; |