clk->rate = clk->parent->rate / new_div;
- omap2xxx_clk_commit(clk);
-
return 0;
}
__raw_writel(v, clk->clksel_reg);
v = __raw_readl(clk->clksel_reg); /* OCP barrier */
- omap2xxx_clk_commit(clk);
-
clk_reparent(clk, new_parent);
/* CLKSEL clocks follow their parents' rates, divided by a divisor */
* linux/arch/arm/mach-omap2/clock.c
*
* Copyright (C) 2005-2008 Texas Instruments, Inc.
- * Copyright (C) 2004-2008 Nokia Corporation
+ * Copyright (C) 2004-2010 Nokia Corporation
*
* Contacts:
* Richard Woodruff <r-woodruff2@ti.com>
*/
#undef DEBUG
-#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/device.h>
#include <linux/list.h>
#include <linux/errno.h>
-#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/bitops.h>
/* Public functions */
/**
- * omap2xxx_clk_commit - commit clock parent/rate changes in hardware
- * @clk: struct clk *
- *
- * If @clk has the DELAYED_APP flag set, meaning that parent/rate changes
- * don't take effect until the VALID_CONFIG bit is written, write the
- * VALID_CONFIG bit and wait for the write to complete. No return value.
- */
-void omap2xxx_clk_commit(struct clk *clk)
-{
- if (!cpu_is_omap24xx())
- return;
-
- if (!(clk->flags & DELAYED_APP))
- return;
-
- prm_write_mod_reg(OMAP24XX_VALID_CONFIG, OMAP24XX_GR_MOD,
- OMAP2_PRCM_CLKCFG_CTRL_OFFSET);
- /* OCP barrier */
- prm_read_mod_reg(OMAP24XX_GR_MOD, OMAP2_PRCM_CLKCFG_CTRL_OFFSET);
-}
-
-/**
* omap2_init_clk_clkdm - look up a clockdomain name, store pointer in clk
* @clk: OMAP clock struct ptr to use
*
u8 *other_bit);
void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
-void omap2xxx_clk_commit(struct clk *clk);
extern u8 cpu_mask;
.name = "mpu_ck",
.ops = &clkops_null,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "mpu_clkdm",
.init = &omap2_init_clksel_parent,
.clksel_reg = OMAP_CM_REGADDR(MPU_MOD, CM_CLKSEL),
.name = "dsp_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "dsp_clkdm",
.enable_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_FCLKEN),
.enable_bit = OMAP24XX_CM_FCLKEN_DSP_EN_DSP_SHIFT,
.name = "dsp_irate_ick",
.ops = &clkops_null,
.parent = &dsp_fck,
- .flags = DELAYED_APP,
.clksel_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_CLKSEL),
.clksel_mask = OMAP24XX_CLKSEL_DSP_IF_MASK,
.clksel = dsp_irate_ick_clksel,
.name = "iva1_ifck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "iva1_clkdm",
.enable_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_FCLKEN),
.enable_bit = OMAP2420_EN_IVA_COP_SHIFT,
.name = "core_l3_ck",
.ops = &clkops_null,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l3_clkdm",
.clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL1),
.clksel_mask = OMAP24XX_CLKSEL_L3_MASK,
.name = "usb_l4_ick",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_l3_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l4_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN2),
.enable_bit = OMAP24XX_EN_USB_SHIFT,
.name = "l4_ck",
.ops = &clkops_null,
.parent = &core_l3_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l4_clkdm",
.clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL1),
.clksel_mask = OMAP24XX_CLKSEL_L4_MASK,
.clksel = l4_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
/*
.name = "ssi_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l3_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP24XX_CM_FCLKEN2),
.enable_bit = OMAP24XX_EN_SSI_SHIFT,
.clksel_mask = OMAP24XX_CLKSEL_SSI_MASK,
.clksel = ssi_ssr_sst_fck_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
/*
.name = "gfx_2d_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_l3_ck,
- .flags = DELAYED_APP,
.clkdm_name = "gfx_clkdm",
.enable_reg = OMAP_CM_REGADDR(GFX_MOD, CM_FCLKEN),
.enable_bit = OMAP24XX_EN_2D_SHIFT,
.name = "dss1_fck",
.ops = &clkops_omap2_dflt,
.parent = &core_ck, /* Core or sys */
- .flags = DELAYED_APP,
.clkdm_name = "dss_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
.enable_bit = OMAP24XX_EN_DSS1_SHIFT,
.clksel_mask = OMAP24XX_CLKSEL_DSS1_MASK,
.clksel = dss1_fck_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
static const struct clksel_rate dss2_fck_sys_rates[] = {
.name = "dss2_fck",
.ops = &clkops_omap2_dflt,
.parent = &sys_ck, /* fixed at sys_ck or 48MHz */
- .flags = DELAYED_APP,
.clkdm_name = "dss_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
.enable_bit = OMAP24XX_EN_DSS2_SHIFT,
.name = "vlynq_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &func_96m_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l3_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
.enable_bit = OMAP2420_EN_VLYNQ_SHIFT,
.clksel_mask = OMAP2420_CLKSEL_VLYNQ_MASK,
.clksel = vlynq_fck_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
static struct clk des_ick = {
.name = "mpu_ck",
.ops = &clkops_null,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "mpu_clkdm",
.init = &omap2_init_clksel_parent,
.clksel_reg = OMAP_CM_REGADDR(MPU_MOD, CM_CLKSEL),
.name = "dsp_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "dsp_clkdm",
.enable_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_FCLKEN),
.enable_bit = OMAP24XX_CM_FCLKEN_DSP_EN_DSP_SHIFT,
.name = "dsp_irate_ick",
.ops = &clkops_null,
.parent = &dsp_fck,
- .flags = DELAYED_APP,
.clksel_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_CLKSEL),
.clksel_mask = OMAP24XX_CLKSEL_DSP_IF_MASK,
.clksel = dsp_irate_ick_clksel,
.name = "core_l3_ck",
.ops = &clkops_null,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l3_clkdm",
.clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL1),
.clksel_mask = OMAP24XX_CLKSEL_L3_MASK,
.name = "usb_l4_ick",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_l3_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l4_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN2),
.enable_bit = OMAP24XX_EN_USB_SHIFT,
.name = "l4_ck",
.ops = &clkops_null,
.parent = &core_l3_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l4_clkdm",
.clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL1),
.clksel_mask = OMAP24XX_CLKSEL_L4_MASK,
.clksel = l4_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
/*
.name = "ssi_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "core_l3_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP24XX_CM_FCLKEN2),
.enable_bit = OMAP24XX_EN_SSI_SHIFT,
.clksel_mask = OMAP24XX_CLKSEL_SSI_MASK,
.clksel = ssi_ssr_sst_fck_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
/*
.name = "gfx_2d_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_l3_ck,
- .flags = DELAYED_APP,
.clkdm_name = "gfx_clkdm",
.enable_reg = OMAP_CM_REGADDR(GFX_MOD, CM_FCLKEN),
.enable_bit = OMAP24XX_EN_2D_SHIFT,
.name = "mdm_ick",
.ops = &clkops_omap2_dflt_wait,
.parent = &core_ck,
- .flags = DELAYED_APP,
.clkdm_name = "mdm_clkdm",
.enable_reg = OMAP_CM_REGADDR(OMAP2430_MDM_MOD, CM_ICLKEN),
.enable_bit = OMAP2430_CM_ICLKEN_MDM_EN_MDM_SHIFT,
.name = "dss1_fck",
.ops = &clkops_omap2_dflt,
.parent = &core_ck, /* Core or sys */
- .flags = DELAYED_APP,
.clkdm_name = "dss_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
.enable_bit = OMAP24XX_EN_DSS1_SHIFT,
.clksel_mask = OMAP24XX_CLKSEL_DSS1_MASK,
.clksel = dss1_fck_clksel,
.recalc = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
- .set_rate = &omap2_clksel_set_rate
};
static const struct clksel_rate dss2_fck_sys_rates[] = {
.name = "dss2_fck",
.ops = &clkops_omap2_dflt,
.parent = &sys_ck, /* fixed at sys_ck or 48MHz */
- .flags = DELAYED_APP,
.clkdm_name = "dss_clkdm",
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
.enable_bit = OMAP24XX_EN_DSS2_SHIFT,
#define ENABLE_REG_32BIT (1 << 1) /* Use 32-bit access */
#define CLOCK_IDLE_CONTROL (1 << 2)
#define CLOCK_NO_IDLE_PARENT (1 << 3)
-#define DELAYED_APP (1 << 4) /* Delay application of clock */
-#define ENABLE_ON_INIT (1 << 5) /* Enable upon framework init */
-#define INVERT_ENABLE (1 << 6) /* 0 enables, 1 disables */
-#define ALWAYS_ENABLED (1 << 7)
+#define ENABLE_ON_INIT (1 << 4) /* Enable upon framework init */
+#define INVERT_ENABLE (1 << 5) /* 0 enables, 1 disables */
+#define ALWAYS_ENABLED (1 << 6)
/* Clksel_rate flags */
#define DEFAULT_RATE (1 << 0)