]> git.karo-electronics.de Git - karo-tx-linux.git/commitdiff
ARM: OMAP2: convert sys_ck and osc_ck to standard clock types
authorTero Kristo <t-kristo@ti.com>
Thu, 20 Feb 2014 17:09:18 +0000 (19:09 +0200)
committerTero Kristo <t-kristo@ti.com>
Wed, 2 Jul 2014 11:26:06 +0000 (14:26 +0300)
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>
arch/arm/mach-omap2/Makefile
arch/arm/mach-omap2/cclock2420_data.c
arch/arm/mach-omap2/cclock2430_data.c
arch/arm/mach-omap2/clkt2xxx_osc.c [deleted file]
arch/arm/mach-omap2/clkt2xxx_sys.c [deleted file]
arch/arm/mach-omap2/clock2xxx.h
arch/arm/mach-omap2/cm-regbits-24xx.h
arch/arm/mach-omap2/pm24xx.c

index 8421f38cf445355f2ad84ef5077f4b89523b21fb..b5dc4b5aaac3b9d475d04f24eb05a5a9ca70656f 100644 (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
index 3662f4d4c8eac876b5b951f045f105bec0ce438a..3e46ac188533792c6f956e6dc9ee21e5cf0891d6 100644 (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);
 
-static struct clk_hw_omap osc_ck_hw = {
-       .hw = {
-               .clk = &osc_ck,
-       },
-};
+DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0);
+
+DEFINE_CLK_FIXED_RATE(virt_26m_ck, CLK_IS_ROOT, 26000000, 0x0);
 
-static struct clk osc_ck = {
-       .name   = "osc_ck",
-       .ops    = &osc_ck_ops,
-       .hw     = &osc_ck_hw.hw,
-       .flags  = CLK_IS_ROOT,
+/* 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",
 };
 
+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;
 
index 5e4b037bb24cb66236c9f0bfe502d6b844e7d11e..582abc221ece623edc105e3f5865e9e3cb7fca0f 100644 (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);
 
-static struct clk_hw_omap osc_ck_hw = {
-       .hw = {
-               .clk = &osc_ck,
-       },
-};
+DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0);
 
-static struct clk osc_ck = {
-       .name   = "osc_ck",
-       .ops    = &osc_ck_ops,
-       .hw     = &osc_ck_hw.hw,
-       .flags  = CLK_IS_ROOT,
+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",
 };
 
+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;
 
diff --git a/arch/arm/mach-omap2/clkt2xxx_osc.c b/arch/arm/mach-omap2/clkt2xxx_osc.c
deleted file mode 100644 (file)
index 0717dff..0000000
+++ /dev/null
@@ -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();
-}
diff --git a/arch/arm/mach-omap2/clkt2xxx_sys.c b/arch/arm/mach-omap2/clkt2xxx_sys.c
deleted file mode 100644 (file)
index 58dd3a9..0000000
+++ /dev/null
@@ -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();
-}
index 45f41a4116031be4cbb722bc2db63cc33841c31f..a090225ceeba9d1f09a79b34c5b763da363ae4a0 100644 (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);
index 8538669cc2ad71d132540a9463d8c1e3b02dcb28..d7a5d11cbcbfa1df1086fd84bbb5a855d6a0cd76 100644 (file)
 #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)
index a5ea988ff340a217481289a1e9626949a7c9d2fd..d7ac05c6e5e280841e92542ec065752324e21844 100644 (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)