projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 530e544f PW |
1 | /* |
| 2 | * OMAP2/3 interface clock control | |
| 3 | * | |
| 4 | * Copyright (C) 2011 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 | #undef DEBUG | |
| 12 | ||
| 13 | #include <linux/kernel.h> | |
| 14 | #include <linux/clk.h> | |
| 15 | #include <linux/io.h> | |
| 16 | ||
| 530e544f PW |
17 | #include <plat/prcm.h> |
| 18 | ||
| 19 | #include "clock.h" | |
| 20 | #include "clock2xxx.h" | |
| 21 | #include "cm2xxx_3xxx.h" | |
| 22 | #include "cm-regbits-24xx.h" | |
| 23 | ||
| 24 | /* Private functions */ | |
| 25 | ||
| 26 | /* XXX */ | |
| 27 | void omap2_clkt_iclk_allow_idle(struct clk *clk) | |
| 28 | { | |
| 29 | u32 v, r; | |
| 30 | ||
| 31 | r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); | |
| 32 | ||
| 33 | v = __raw_readl((__force void __iomem *)r); | |
| 34 | v |= (1 << clk->enable_bit); | |
| 35 | __raw_writel(v, (__force void __iomem *)r); | |
| 36 | } | |
| 37 | ||
| 38 | /* XXX */ | |
| 39 | void omap2_clkt_iclk_deny_idle(struct clk *clk) | |
| 40 | { | |
| 41 | u32 v, r; | |
| 42 | ||
| 43 | r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); | |
| 44 | ||
| 45 | v = __raw_readl((__force void __iomem *)r); | |
| 46 | v &= ~(1 << clk->enable_bit); | |
| 47 | __raw_writel(v, (__force void __iomem *)r); | |
| 48 | } | |
| 49 | ||
| 50 | /* Public data */ | |
| 51 | ||
| 52 | const struct clkops clkops_omap2_iclk_dflt_wait = { | |
| 53 | .enable = omap2_dflt_clk_enable, | |
| 54 | .disable = omap2_dflt_clk_disable, | |
| 55 | .find_companion = omap2_clk_dflt_find_companion, | |
| 56 | .find_idlest = omap2_clk_dflt_find_idlest, | |
| 57 | .allow_idle = omap2_clkt_iclk_allow_idle, | |
| 58 | .deny_idle = omap2_clkt_iclk_deny_idle, | |
| 59 | }; | |
| 60 | ||
| 61 | const struct clkops clkops_omap2_iclk_dflt = { | |
| 62 | .enable = omap2_dflt_clk_enable, | |
| 63 | .disable = omap2_dflt_clk_disable, | |
| 64 | .allow_idle = omap2_clkt_iclk_allow_idle, | |
| 65 | .deny_idle = omap2_clkt_iclk_deny_idle, | |
| 66 | }; | |
| 67 | ||
| 68 | const struct clkops clkops_omap2_iclk_idle_only = { | |
| 69 | .allow_idle = omap2_clkt_iclk_allow_idle, | |
| 70 | .deny_idle = omap2_clkt_iclk_deny_idle, | |
| 71 | }; | |
| 72 | ||
| e892b252 PW |
73 | const struct clkops clkops_omap2_mdmclk_dflt_wait = { |
| 74 | .enable = omap2_dflt_clk_enable, | |
| 75 | .disable = omap2_dflt_clk_disable, | |
| 76 | .find_companion = omap2_clk_dflt_find_companion, | |
| 77 | .find_idlest = omap2_clk_dflt_find_idlest, | |
| 78 | .allow_idle = omap2_clkt_iclk_allow_idle, | |
| 79 | .deny_idle = omap2_clkt_iclk_deny_idle, | |
| 80 | }; | |
| 81 |