| /* |
| * OMAP2/3 interface clock control |
| * |
| * Copyright (C) 2011 Nokia Corporation |
| * 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. |
| */ |
| #undef DEBUG |
| |
| #include <linux/kernel.h> |
| #include <linux/clk.h> |
| #include <linux/io.h> |
| |
| #include <plat/prcm.h> |
| |
| #include "clock.h" |
| #include "clock2xxx.h" |
| #include "cm2xxx_3xxx.h" |
| #include "cm-regbits-24xx.h" |
| |
| /* Private functions */ |
| |
| /* XXX */ |
| void omap2_clkt_iclk_allow_idle(struct clk *clk) |
| { |
| u32 v, r; |
| |
| r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); |
| |
| v = __raw_readl((__force void __iomem *)r); |
| v |= (1 << clk->enable_bit); |
| __raw_writel(v, (__force void __iomem *)r); |
| } |
| |
| /* XXX */ |
| void omap2_clkt_iclk_deny_idle(struct clk *clk) |
| { |
| u32 v, r; |
| |
| r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); |
| |
| v = __raw_readl((__force void __iomem *)r); |
| v &= ~(1 << clk->enable_bit); |
| __raw_writel(v, (__force void __iomem *)r); |
| } |
| |
| /* Public data */ |
| |
| const struct clkops clkops_omap2_iclk_dflt_wait = { |
| .enable = omap2_dflt_clk_enable, |
| .disable = omap2_dflt_clk_disable, |
| .find_companion = omap2_clk_dflt_find_companion, |
| .find_idlest = omap2_clk_dflt_find_idlest, |
| .allow_idle = omap2_clkt_iclk_allow_idle, |
| .deny_idle = omap2_clkt_iclk_deny_idle, |
| }; |
| |
| const struct clkops clkops_omap2_iclk_dflt = { |
| .enable = omap2_dflt_clk_enable, |
| .disable = omap2_dflt_clk_disable, |
| .allow_idle = omap2_clkt_iclk_allow_idle, |
| .deny_idle = omap2_clkt_iclk_deny_idle, |
| }; |
| |
| const struct clkops clkops_omap2_iclk_idle_only = { |
| .allow_idle = omap2_clkt_iclk_allow_idle, |
| .deny_idle = omap2_clkt_iclk_deny_idle, |
| }; |
| |
| const struct clkops clkops_omap2_mdmclk_dflt_wait = { |
| .enable = omap2_dflt_clk_enable, |
| .disable = omap2_dflt_clk_disable, |
| .find_companion = omap2_clk_dflt_find_companion, |
| .find_idlest = omap2_clk_dflt_find_idlest, |
| .allow_idle = omap2_clkt_iclk_allow_idle, |
| .deny_idle = omap2_clkt_iclk_deny_idle, |
| }; |
| |