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ARM: OMAP2: convert sys_ck and osc_ck to standard clock types

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osc_ck can be simply defined as a multiplexer clock, and the sys_ck
can be a simple divider.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Tero Kristo 2014-02-20 19:09:18 +02:00
parent 7171511eae
commit 944ee5dc15
8 changed files with 69 additions and 173 deletions
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3
arch/arm/mach-omap2/Makefile
View file

@ -174,10 +174,9 @@ obj-$(CONFIG_SOC_DRA7XX) += clockdomains7xx_data.o
# Clock framework
obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o
obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_sys.o
obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpllcore.o
obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_virt_prcm_set.o
obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_apll.o clkt2xxx_osc.o
obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_apll.o
obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpll.o clkt_iclk.o
obj-$(CONFIG_SOC_OMAP2420) += cclock2420_data.o
obj-$(CONFIG_SOC_OMAP2430) += clock2430.o cclock2430_data.o

54
arch/arm/mach-omap2/cclock2420_data.c
View file

@ -57,40 +57,39 @@ DEFINE_CLK_FIXED_RATE(func_32k_ck, CLK_IS_ROOT, 32768, 0x0);
DEFINE_CLK_FIXED_RATE(mcbsp_clks, CLK_IS_ROOT, 0x0, 0x0);
static struct clk osc_ck;
DEFINE_CLK_FIXED_RATE(virt_12m_ck, CLK_IS_ROOT, 12000000, 0x0);
static const struct clk_ops osc_ck_ops = {
.recalc_rate = &omap2_osc_clk_recalc,
DEFINE_CLK_FIXED_RATE(virt_13m_ck, CLK_IS_ROOT, 13000000, 0x0);
DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0);
DEFINE_CLK_FIXED_RATE(virt_26m_ck, CLK_IS_ROOT, 26000000, 0x0);
/* 26M ck is a dummy, added to fill the hole in the aplls_clkin parent list */
static const char *aplls_clkin_ck_parent_names[] = {
"virt_19200000_ck", "virt_26m_ck", "virt_13m_ck", "virt_12m_ck",
};
static struct clk_hw_omap osc_ck_hw = {
.hw = {
.clk = &osc_ck,
},
};
static struct clk osc_ck = {
.name = "osc_ck",
.ops = &osc_ck_ops,
.hw = &osc_ck_hw.hw,
.flags = CLK_IS_ROOT,
};
DEFINE_CLK_MUX(aplls_clkin_ck, aplls_clkin_ck_parent_names, NULL, 0x0,
OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1), OMAP24XX_APLLS_CLKIN_SHIFT,
OMAP24XX_APLLS_CLKIN_WIDTH, 0x0, NULL);
DEFINE_CLK_FIXED_RATE(secure_32k_ck, CLK_IS_ROOT, 32768, 0x0);
static struct clk sys_ck;
DEFINE_CLK_FIXED_FACTOR(aplls_clkin_x2_ck, "aplls_clkin_ck", &aplls_clkin_ck,
0x0, 2, 1);
static const char *sys_ck_parent_names[] = {
"osc_ck",
static const char *osc_ck_parent_names[] = {
"aplls_clkin_ck", "aplls_clkin_x2_ck",
};
static const struct clk_ops sys_ck_ops = {
.init = &omap2_init_clk_clkdm,
.recalc_rate = &omap2xxx_sys_clk_recalc,
};
DEFINE_CLK_MUX(osc_ck, osc_ck_parent_names, NULL, 0x0,
OMAP2420_PRCM_CLKSRC_CTRL, OMAP_SYSCLKDIV_SHIFT,
OMAP_SYSCLKDIV_WIDTH, CLK_MUX_INDEX_ONE, NULL);
DEFINE_STRUCT_CLK_HW_OMAP(sys_ck, "wkup_clkdm");
DEFINE_STRUCT_CLK(sys_ck, sys_ck_parent_names, sys_ck_ops);
DEFINE_CLK_DIVIDER(sys_ck, "osc_ck", &osc_ck, 0x0, OMAP2420_PRCM_CLKSRC_CTRL,
OMAP_SYSCLKDIV_SHIFT, OMAP_SYSCLKDIV_WIDTH,
CLK_DIVIDER_ONE_BASED, NULL);
static struct dpll_data dpll_dd = {
.mult_div1_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1),
@ -1741,6 +1740,12 @@ static struct omap_clk omap2420_clks[] = {
/* external root sources */
CLK(NULL, "func_32k_ck", &func_32k_ck),
CLK(NULL, "secure_32k_ck", &secure_32k_ck),
CLK(NULL, "virt_12m_ck", &virt_12m_ck),
CLK(NULL, "virt_13m_ck", &virt_13m_ck),
CLK(NULL, "virt_19200000_ck", &virt_19200000_ck),
CLK(NULL, "virt_26m_ck", &virt_26m_ck),
CLK(NULL, "aplls_clkin_ck", &aplls_clkin_ck),
CLK(NULL, "aplls_clkin_x2_ck", &aplls_clkin_x2_ck),
CLK(NULL, "osc_ck", &osc_ck),
CLK(NULL, "sys_ck", &sys_ck),
CLK(NULL, "alt_ck", &alt_ck),
@ -1904,7 +1909,6 @@ static const char *enable_init_clks[] = {
int __init omap2420_clk_init(void)
{
prcm_clksrc_ctrl = OMAP2420_PRCM_CLKSRC_CTRL;
cpu_mask = RATE_IN_242X;
rate_table = omap2420_rate_table;

62
arch/arm/mach-omap2/cclock2430_data.c
View file

@ -55,42 +55,39 @@ DEFINE_CLK_FIXED_RATE(func_32k_ck, CLK_IS_ROOT, 32768, 0x0);
DEFINE_CLK_FIXED_RATE(mcbsp_clks, CLK_IS_ROOT, 0x0, 0x0);
static struct clk osc_ck;
DEFINE_CLK_FIXED_RATE(virt_12m_ck, CLK_IS_ROOT, 12000000, 0x0);
static const struct clk_ops osc_ck_ops = {
.enable = &omap2_enable_osc_ck,
.disable = omap2_disable_osc_ck,
.recalc_rate = &omap2_osc_clk_recalc,
DEFINE_CLK_FIXED_RATE(virt_13m_ck, CLK_IS_ROOT, 13000000, 0x0);
DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0);
DEFINE_CLK_FIXED_RATE(virt_26m_ck, CLK_IS_ROOT, 26000000, 0x0);
/* 26M ck is a dummy, added to filla hole in the aplls_clkin parent list */
static const char *aplls_clkin_ck_parent_names[] = {
"virt_19200000_ck", "virt_26m_ck", "virt_13m_ck", "virt_12m_ck",
};
static struct clk_hw_omap osc_ck_hw = {
.hw = {
.clk = &osc_ck,
},
};
static struct clk osc_ck = {
.name = "osc_ck",
.ops = &osc_ck_ops,
.hw = &osc_ck_hw.hw,
.flags = CLK_IS_ROOT,
};
DEFINE_CLK_MUX(aplls_clkin_ck, aplls_clkin_ck_parent_names, NULL, 0x0,
OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1), OMAP24XX_APLLS_CLKIN_SHIFT,
OMAP24XX_APLLS_CLKIN_WIDTH, 0x0, NULL);
DEFINE_CLK_FIXED_RATE(secure_32k_ck, CLK_IS_ROOT, 32768, 0x0);
static struct clk sys_ck;
DEFINE_CLK_FIXED_FACTOR(aplls_clkin_x2_ck, "aplls_clkin_ck", &aplls_clkin_ck,
0x0, 2, 1);
static const char *sys_ck_parent_names[] = {
"osc_ck",
static const char *osc_ck_parent_names[] = {
"aplls_clkin_ck", "aplls_clkin_x2_ck",
};
static const struct clk_ops sys_ck_ops = {
.init = &omap2_init_clk_clkdm,
.recalc_rate = &omap2xxx_sys_clk_recalc,
};
DEFINE_CLK_MUX(osc_ck, osc_ck_parent_names, NULL, 0x0,
OMAP2430_PRCM_CLKSRC_CTRL, OMAP_SYSCLKDIV_SHIFT,
OMAP_SYSCLKDIV_WIDTH, CLK_MUX_INDEX_ONE, NULL);
DEFINE_STRUCT_CLK_HW_OMAP(sys_ck, "wkup_clkdm");
DEFINE_STRUCT_CLK(sys_ck, sys_ck_parent_names, sys_ck_ops);
DEFINE_CLK_DIVIDER(sys_ck, "osc_ck", &osc_ck, 0x0, OMAP2430_PRCM_CLKSRC_CTRL,
OMAP_SYSCLKDIV_SHIFT, OMAP_SYSCLKDIV_WIDTH,
CLK_DIVIDER_ONE_BASED, NULL);
static struct dpll_data dpll_dd = {
.mult_div1_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1),
@ -1308,7 +1305,11 @@ static struct clk_hw_omap mdm_osc_ck_hw = {
.clkdm_name = "mdm_clkdm",
};
DEFINE_STRUCT_CLK(mdm_osc_ck, sys_ck_parent_names, aes_ick_ops);
static const char *mdm_osc_ck_parent_names[] = {
"osc_ck",
};
DEFINE_STRUCT_CLK(mdm_osc_ck, mdm_osc_ck_parent_names, aes_ick_ops);
static struct clk mmchs1_fck;
@ -1842,6 +1843,12 @@ static struct omap_clk omap2430_clks[] = {
/* external root sources */
CLK(NULL, "func_32k_ck", &func_32k_ck),
CLK(NULL, "secure_32k_ck", &secure_32k_ck),
CLK(NULL, "virt_12m_ck", &virt_12m_ck),
CLK(NULL, "virt_13m_ck", &virt_13m_ck),
CLK(NULL, "virt_19200000_ck", &virt_19200000_ck),
CLK(NULL, "virt_26m_ck", &virt_26m_ck),
CLK(NULL, "aplls_clkin_ck", &aplls_clkin_ck),
CLK(NULL, "aplls_clkin_x2_ck", &aplls_clkin_x2_ck),
CLK(NULL, "osc_ck", &osc_ck),
CLK("twl", "fck", &osc_ck),
CLK(NULL, "sys_ck", &sys_ck),
@ -2021,7 +2028,6 @@ static const char *enable_init_clks[] = {
int __init omap2430_clk_init(void)
{
prcm_clksrc_ctrl = OMAP2430_PRCM_CLKSRC_CTRL;
cpu_mask = RATE_IN_243X;
rate_table = omap2430_rate_table;

69
arch/arm/mach-omap2/clkt2xxx_osc.c
View file

@ -1,69 +0,0 @@
/*
* OMAP2xxx osc_clk-specific clock code
*
* Copyright (C) 2005-2008 Texas Instruments, Inc.
* Copyright (C) 2004-2010 Nokia Corporation
*
* Contacts:
* Richard Woodruff <r-woodruff2@ti.com>
* Paul Walmsley
*
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
* Gordon McNutt and RidgeRun, Inc.
*
* 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/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/clk.h>
#include <linux/io.h>
#include "clock.h"
#include "clock2xxx.h"
#include "prm2xxx_3xxx.h"
#include "prm-regbits-24xx.h"
/*
* XXX This does not actually enable the osc_ck, since the osc_ck must
* be running for this function to be called. Instead, this function
* is used to disable an autoidle mode on the osc_ck. The existing
* clk_enable/clk_disable()-based usecounting for osc_ck should be
* replaced with autoidle-based usecounting.
*/
int omap2_enable_osc_ck(struct clk_hw *clk)
{
u32 pcc;
pcc = readl_relaxed(prcm_clksrc_ctrl);
writel_relaxed(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
return 0;
}
/*
* XXX This does not actually disable the osc_ck, since doing so would
* immediately halt the system. Instead, this function is used to
* enable an autoidle mode on the osc_ck. The existing
* clk_enable/clk_disable()-based usecounting for osc_ck should be
* replaced with autoidle-based usecounting.
*/
void omap2_disable_osc_ck(struct clk_hw *clk)
{
u32 pcc;
pcc = readl_relaxed(prcm_clksrc_ctrl);
writel_relaxed(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
}
unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate)
{
return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv();
}

47
arch/arm/mach-omap2/clkt2xxx_sys.c
View file

@ -1,47 +0,0 @@
/*
* OMAP2xxx sys_clk-specific clock code
*
* Copyright (C) 2005-2008 Texas Instruments, Inc.
* Copyright (C) 2004-2010 Nokia Corporation
*
* Contacts:
* Richard Woodruff <r-woodruff2@ti.com>
* Paul Walmsley
*
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
* Gordon McNutt and RidgeRun, Inc.
*
* 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/errno.h>
#include <linux/clk.h>
#include <linux/io.h>
#include "clock.h"
#include "clock2xxx.h"
#include "prm2xxx_3xxx.h"
#include "prm-regbits-24xx.h"
void __iomem *prcm_clksrc_ctrl;
u32 omap2xxx_get_sysclkdiv(void)
{
u32 div;
div = readl_relaxed(prcm_clksrc_ctrl);
div &= OMAP_SYSCLKDIV_MASK;
div >>= OMAP_SYSCLKDIV_SHIFT;
return div;
}
unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate)
{
return parent_rate / omap2xxx_get_sysclkdiv();
}

2
arch/arm/mach-omap2/clock2xxx.h
View file

@ -45,8 +45,6 @@ int omap2430_clk_init(void);
#define omap2430_clk_init() do { } while(0)
#endif
extern void __iomem *prcm_clksrc_ctrl;
extern struct clk_hw *dclk_hw;
int omap2_enable_osc_ck(struct clk_hw *hw);
void omap2_disable_osc_ck(struct clk_hw *hw);

1
arch/arm/mach-omap2/cm-regbits-24xx.h
View file

@ -107,6 +107,7 @@
#define OMAP24XX_AUTO_DPLL_SHIFT 0
#define OMAP24XX_AUTO_DPLL_MASK (0x3 << 0)
#define OMAP24XX_APLLS_CLKIN_SHIFT 23
#define OMAP24XX_APLLS_CLKIN_WIDTH 3
#define OMAP24XX_APLLS_CLKIN_MASK (0x7 << 23)
#define OMAP24XX_DPLL_MULT_MASK (0x3ff << 12)
#define OMAP24XX_DPLL_DIV_MASK (0xf << 8)

4
arch/arm/mach-omap2/pm24xx.c
View file

@ -249,6 +249,10 @@ static void __init prcm_setup_regs(void)
/* Enable wake-up events */
omap2_prm_write_mod_reg(OMAP24XX_EN_GPIOS_MASK | OMAP24XX_EN_GPT1_MASK,
WKUP_MOD, PM_WKEN);
/* Enable SYS_CLKEN control when all domains idle */
omap2_prm_set_mod_reg_bits(OMAP_AUTOEXTCLKMODE_MASK, OMAP24XX_GR_MOD,
OMAP2_PRCM_CLKSRC_CTRL_OFFSET);
}
int __init omap2_pm_init(void)