OMAP2 clock: convert clock24xx.h to clock2xxx_data.c, opp2xxx*

The OMAP2 clock code currently #includes a large .h file full of static
data structures.  Instead, define the data in a .c file.

Russell King <linux@arm.linux.org.uk> proposed this new arrangement:

    http://marc.info/?l=linux-omap&m=125967425908895&w=2

This patch also deals with most of the flagrant checkpatch violations.

While here, separate the prcm_config data structures out into their own
files, opp2xxx.h and opp24{2,3}0_data.c, and only build in the OPP tables
for the target device.  This should save some memory.  In the long run,
these prcm_config tables should be replaced with OPP code.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Nishanth Menon <nm@ti.com>

1 files changed, 0 insertions, 796 deletions

diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
deleted file mode 100644
index a4221741808e..000000000000
--- a/arch/arm/mach-omap2/clock24xx.c
+++ /dev/null
@@ -1,796 +0,0 @@
-/*
- *  linux/arch/arm/mach-omap2/clock.c
- *
- *  Copyright (C) 2005-2008 Texas Instruments, Inc.
- *  Copyright (C) 2004-2008 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/device.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/cpufreq.h>
-#include <linux/bitops.h>
-
-#include <plat/clock.h>
-#include <plat/sram.h>
-#include <plat/prcm.h>
-#include <plat/clkdev_omap.h>
-#include <asm/div64.h>
-#include <asm/clkdev.h>
-
-#include <plat/sdrc.h>
-#include "clock.h"
-#include "prm.h"
-#include "prm-regbits-24xx.h"
-#include "cm.h"
-#include "cm-regbits-24xx.h"
-
-static const struct clkops clkops_oscck;
-static const struct clkops clkops_apll96;
-static const struct clkops clkops_apll54;
-
-static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
-					   void __iomem **idlest_reg,
-					   u8 *idlest_bit);
-
-/* 2430 I2CHS has non-standard IDLEST register */
-static const struct clkops clkops_omap2430_i2chs_wait = {
-	.enable		= omap2_dflt_clk_enable,
-	.disable	= omap2_dflt_clk_disable,
-	.find_idlest	= omap2430_clk_i2chs_find_idlest,
-	.find_companion = omap2_clk_dflt_find_companion,
-};
-
-#include "clock24xx.h"
-
-static struct omap_clk omap24xx_clks[] = {
-	/* external root sources */
-	CLK(NULL,	"func_32k_ck",	&func_32k_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"secure_32k_ck", &secure_32k_ck, CK_243X | CK_242X),
-	CLK(NULL,	"osc_ck",	&osc_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"sys_ck",	&sys_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"alt_ck",	&alt_ck,	CK_243X | CK_242X),
-	/* internal analog sources */
-	CLK(NULL,	"dpll_ck",	&dpll_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"apll96_ck",	&apll96_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"apll54_ck",	&apll54_ck,	CK_243X | CK_242X),
-	/* internal prcm root sources */
-	CLK(NULL,	"func_54m_ck",	&func_54m_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"core_ck",	&core_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"func_96m_ck",	&func_96m_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"func_48m_ck",	&func_48m_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"func_12m_ck",	&func_12m_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"ck_wdt1_osc",	&wdt1_osc_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"sys_clkout_src", &sys_clkout_src, CK_243X | CK_242X),
-	CLK(NULL,	"sys_clkout",	&sys_clkout,	CK_243X | CK_242X),
-	CLK(NULL,	"sys_clkout2_src", &sys_clkout2_src, CK_242X),
-	CLK(NULL,	"sys_clkout2",	&sys_clkout2,	CK_242X),
-	CLK(NULL,	"emul_ck",	&emul_ck,	CK_242X),
-	/* mpu domain clocks */
-	CLK(NULL,	"mpu_ck",	&mpu_ck,	CK_243X | CK_242X),
-	/* dsp domain clocks */
-	CLK(NULL,	"dsp_fck",	&dsp_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"dsp_irate_ick", &dsp_irate_ick, CK_243X | CK_242X),
-	CLK(NULL,	"dsp_ick",	&dsp_ick,	CK_242X),
-	CLK(NULL,	"iva2_1_ick",	&iva2_1_ick,	CK_243X),
-	CLK(NULL,	"iva1_ifck",	&iva1_ifck,	CK_242X),
-	CLK(NULL,	"iva1_mpu_int_ifck", &iva1_mpu_int_ifck, CK_242X),
-	/* GFX domain clocks */
-	CLK(NULL,	"gfx_3d_fck",	&gfx_3d_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gfx_2d_fck",	&gfx_2d_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gfx_ick",	&gfx_ick,	CK_243X | CK_242X),
-	/* Modem domain clocks */
-	CLK(NULL,	"mdm_ick",	&mdm_ick,	CK_243X),
-	CLK(NULL,	"mdm_osc_ck",	&mdm_osc_ck,	CK_243X),
-	/* DSS domain clocks */
-	CLK("omapdss",	"ick",		&dss_ick,	CK_243X | CK_242X),
-	CLK("omapdss",	"dss1_fck",	&dss1_fck,	CK_243X | CK_242X),
-	CLK("omapdss",	"dss2_fck",	&dss2_fck,	CK_243X | CK_242X),
-	CLK("omapdss",	"tv_fck",	&dss_54m_fck,	CK_243X | CK_242X),
-	/* L3 domain clocks */
-	CLK(NULL,	"core_l3_ck",	&core_l3_ck,	CK_243X | CK_242X),
-	CLK(NULL,	"ssi_fck",	&ssi_ssr_sst_fck, CK_243X | CK_242X),
-	CLK(NULL,	"usb_l4_ick",	&usb_l4_ick,	CK_243X | CK_242X),
-	/* L4 domain clocks */
-	CLK(NULL,	"l4_ck",	&l4_ck,		CK_243X | CK_242X),
-	CLK(NULL,	"ssi_l4_ick",	&ssi_l4_ick,	CK_243X | CK_242X),
-	/* virtual meta-group clock */
-	CLK(NULL,	"virt_prcm_set", &virt_prcm_set, CK_243X | CK_242X),
-	/* general l4 interface ck, multi-parent functional clk */
-	CLK(NULL,	"gpt1_ick",	&gpt1_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt1_fck",	&gpt1_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt2_ick",	&gpt2_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt2_fck",	&gpt2_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt3_ick",	&gpt3_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt3_fck",	&gpt3_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt4_ick",	&gpt4_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt4_fck",	&gpt4_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt5_ick",	&gpt5_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt5_fck",	&gpt5_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt6_ick",	&gpt6_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt6_fck",	&gpt6_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt7_ick",	&gpt7_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt7_fck",	&gpt7_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt8_ick",	&gpt8_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt8_fck",	&gpt8_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt9_ick",	&gpt9_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt9_fck",	&gpt9_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt10_ick",	&gpt10_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt10_fck",	&gpt10_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt11_ick",	&gpt11_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt11_fck",	&gpt11_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt12_ick",	&gpt12_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpt12_fck",	&gpt12_fck,	CK_243X | CK_242X),
-	CLK("omap-mcbsp.1", "ick",	&mcbsp1_ick,	CK_243X | CK_242X),
-	CLK("omap-mcbsp.1", "fck",	&mcbsp1_fck,	CK_243X | CK_242X),
-	CLK("omap-mcbsp.2", "ick",	&mcbsp2_ick,	CK_243X | CK_242X),
-	CLK("omap-mcbsp.2", "fck",	&mcbsp2_fck,	CK_243X | CK_242X),
-	CLK("omap-mcbsp.3", "ick",	&mcbsp3_ick,	CK_243X),
-	CLK("omap-mcbsp.3", "fck",	&mcbsp3_fck,	CK_243X),
-	CLK("omap-mcbsp.4", "ick",	&mcbsp4_ick,	CK_243X),
-	CLK("omap-mcbsp.4", "fck",	&mcbsp4_fck,	CK_243X),
-	CLK("omap-mcbsp.5", "ick",	&mcbsp5_ick,	CK_243X),
-	CLK("omap-mcbsp.5", "fck",	&mcbsp5_fck,	CK_243X),
-	CLK("omap2_mcspi.1", "ick",	&mcspi1_ick,	CK_243X | CK_242X),
-	CLK("omap2_mcspi.1", "fck",	&mcspi1_fck,	CK_243X | CK_242X),
-	CLK("omap2_mcspi.2", "ick",	&mcspi2_ick,	CK_243X | CK_242X),
-	CLK("omap2_mcspi.2", "fck",	&mcspi2_fck,	CK_243X | CK_242X),
-	CLK("omap2_mcspi.3", "ick",	&mcspi3_ick,	CK_243X),
-	CLK("omap2_mcspi.3", "fck",	&mcspi3_fck,	CK_243X),
-	CLK(NULL,	"uart1_ick",	&uart1_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"uart1_fck",	&uart1_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"uart2_ick",	&uart2_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"uart2_fck",	&uart2_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"uart3_ick",	&uart3_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"uart3_fck",	&uart3_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"gpios_ick",	&gpios_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"gpios_fck",	&gpios_fck,	CK_243X | CK_242X),
-	CLK("omap_wdt",	"ick",		&mpu_wdt_ick,	CK_243X | CK_242X),
-	CLK("omap_wdt",	"fck",		&mpu_wdt_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"sync_32k_ick",	&sync_32k_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"wdt1_ick",	&wdt1_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"omapctrl_ick",	&omapctrl_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"icr_ick",	&icr_ick,	CK_243X),
-	CLK("omap24xxcam", "fck",	&cam_fck,	CK_243X | CK_242X),
-	CLK("omap24xxcam", "ick",	&cam_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"mailboxes_ick", &mailboxes_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"wdt4_ick",	&wdt4_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"wdt4_fck",	&wdt4_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"wdt3_ick",	&wdt3_ick,	CK_242X),
-	CLK(NULL,	"wdt3_fck",	&wdt3_fck,	CK_242X),
-	CLK(NULL,	"mspro_ick",	&mspro_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"mspro_fck",	&mspro_fck,	CK_243X | CK_242X),
-	CLK("mmci-omap.0", "ick",	&mmc_ick,	CK_242X),
-	CLK("mmci-omap.0", "fck",	&mmc_fck,	CK_242X),
-	CLK(NULL,	"fac_ick",	&fac_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"fac_fck",	&fac_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"eac_ick",	&eac_ick,	CK_242X),
-	CLK(NULL,	"eac_fck",	&eac_fck,	CK_242X),
-	CLK("omap_hdq.0", "ick",	&hdq_ick,	CK_243X | CK_242X),
-	CLK("omap_hdq.1", "fck",	&hdq_fck,	CK_243X | CK_242X),
-	CLK("i2c_omap.1", "ick",	&i2c1_ick,	CK_243X | CK_242X),
-	CLK("i2c_omap.1", "fck",	&i2c1_fck,	CK_242X),
-	CLK("i2c_omap.1", "fck",	&i2chs1_fck,	CK_243X),
-	CLK("i2c_omap.2", "ick",	&i2c2_ick,	CK_243X | CK_242X),
-	CLK("i2c_omap.2", "fck",	&i2c2_fck,	CK_242X),
-	CLK("i2c_omap.2", "fck",	&i2chs2_fck,	CK_243X),
-	CLK(NULL,	"gpmc_fck",	&gpmc_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"sdma_fck",	&sdma_fck,	CK_243X | CK_242X),
-	CLK(NULL,	"sdma_ick",	&sdma_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"vlynq_ick",	&vlynq_ick,	CK_242X),
-	CLK(NULL,	"vlynq_fck",	&vlynq_fck,	CK_242X),
-	CLK(NULL,	"sdrc_ick",	&sdrc_ick,	CK_243X),
-	CLK(NULL,	"des_ick",	&des_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"sha_ick",	&sha_ick,	CK_243X | CK_242X),
-	CLK("omap_rng",	"ick",		&rng_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"aes_ick",	&aes_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"pka_ick",	&pka_ick,	CK_243X | CK_242X),
-	CLK(NULL,	"usb_fck",	&usb_fck,	CK_243X | CK_242X),
-	CLK("musb_hdrc",	"ick",	&usbhs_ick,	CK_243X),
-	CLK("mmci-omap-hs.0", "ick",	&mmchs1_ick,	CK_243X),
-	CLK("mmci-omap-hs.0", "fck",	&mmchs1_fck,	CK_243X),
-	CLK("mmci-omap-hs.1", "ick",	&mmchs2_ick,	CK_243X),
-	CLK("mmci-omap-hs.1", "fck",	&mmchs2_fck,	CK_243X),
-	CLK(NULL,	"gpio5_ick",	&gpio5_ick,	CK_243X),
-	CLK(NULL,	"gpio5_fck",	&gpio5_fck,	CK_243X),
-	CLK(NULL,	"mdm_intc_ick",	&mdm_intc_ick,	CK_243X),
-	CLK("mmci-omap-hs.0", "mmchsdb_fck",	&mmchsdb1_fck,	CK_243X),
-	CLK("mmci-omap-hs.1", "mmchsdb_fck", 	&mmchsdb2_fck,	CK_243X),
-};
-
-/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
-#define EN_APLL_STOPPED			0
-#define EN_APLL_LOCKED			3
-
-/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
-#define APLLS_CLKIN_19_2MHZ		0
-#define APLLS_CLKIN_13MHZ		2
-#define APLLS_CLKIN_12MHZ		3
-
-/* #define DOWN_VARIABLE_DPLL 1 */		/* Experimental */
-
-static struct prcm_config *curr_prcm_set;
-static struct clk *vclk;
-static struct clk *sclk;
-
-static void __iomem *prcm_clksrc_ctrl;
-
-/*-------------------------------------------------------------------------
- * Omap24xx specific clock functions
- *-------------------------------------------------------------------------*/
-
-/**
- * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS
- * @clk: struct clk * being enabled
- * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
- * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
- *
- * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the
- * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE.  This custom function
- * passes back the correct CM_IDLEST register address for I2CHS
- * modules.  No return value.
- */
-static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
-					   void __iomem **idlest_reg,
-					   u8 *idlest_bit)
-{
-	*idlest_reg = OMAP_CM_REGADDR(CORE_MOD, CM_IDLEST);
-	*idlest_bit = clk->enable_bit;
-}
-
-
-/**
- * omap2xxx_clk_get_core_rate - return the CORE_CLK rate
- * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck")
- *
- * Returns the CORE_CLK rate.  CORE_CLK can have one of three rate
- * sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz
- * (the latter is unusual).  This currently should be called with
- * struct clk *dpll_ck, which is a composite clock of dpll_ck and
- * core_ck.
- */
-static unsigned long omap2xxx_clk_get_core_rate(struct clk *clk)
-{
-	long long core_clk;
-	u32 v;
-
-	core_clk = omap2_get_dpll_rate(clk);
-
-	v = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	v &= OMAP24XX_CORE_CLK_SRC_MASK;
-
-	if (v == CORE_CLK_SRC_32K)
-		core_clk = 32768;
-	else
-		core_clk *= v;
-
-	return core_clk;
-}
-
-static int omap2_enable_osc_ck(struct clk *clk)
-{
-	u32 pcc;
-
-	pcc = __raw_readl(prcm_clksrc_ctrl);
-
-	__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-
-	return 0;
-}
-
-static void omap2_disable_osc_ck(struct clk *clk)
-{
-	u32 pcc;
-
-	pcc = __raw_readl(prcm_clksrc_ctrl);
-
-	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-}
-
-static const struct clkops clkops_oscck = {
-	.enable		= &omap2_enable_osc_ck,
-	.disable	= &omap2_disable_osc_ck,
-};
-
-#ifdef OLD_CK
-/* Recalculate SYST_CLK */
-static void omap2_sys_clk_recalc(struct clk * clk)
-{
-	u32 div = PRCM_CLKSRC_CTRL;
-	div &= (1 << 7) | (1 << 6);	/* Test if ext clk divided by 1 or 2 */
-	div >>= clk->rate_offset;
-	clk->rate = (clk->parent->rate / div);
-	propagate_rate(clk);
-}
-#endif	/* OLD_CK */
-
-/* Enable an APLL if off */
-static int omap2_clk_apll_enable(struct clk *clk, u32 status_mask)
-{
-	u32 cval, apll_mask;
-
-	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
-
-	cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-
-	if ((cval & apll_mask) == apll_mask)
-		return 0;   /* apll already enabled */
-
-	cval &= ~apll_mask;
-	cval |= apll_mask;
-	cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
-
-	omap2_cm_wait_idlest(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), status_mask,
-			     clk->name);
-
-	/*
-	 * REVISIT: Should we return an error code if omap2_wait_clock_ready()
-	 * fails?
-	 */
-	return 0;
-}
-
-static int omap2_clk_apll96_enable(struct clk *clk)
-{
-	return omap2_clk_apll_enable(clk, OMAP24XX_ST_96M_APLL);
-}
-
-static int omap2_clk_apll54_enable(struct clk *clk)
-{
-	return omap2_clk_apll_enable(clk, OMAP24XX_ST_54M_APLL);
-}
-
-/* Stop APLL */
-static void omap2_clk_apll_disable(struct clk *clk)
-{
-	u32 cval;
-
-	cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-	cval &= ~(EN_APLL_LOCKED << clk->enable_bit);
-	cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
-}
-
-static const struct clkops clkops_apll96 = {
-	.enable		= &omap2_clk_apll96_enable,
-	.disable	= &omap2_clk_apll_disable,
-};
-
-static const struct clkops clkops_apll54 = {
-	.enable		= &omap2_clk_apll54_enable,
-	.disable	= &omap2_clk_apll_disable,
-};
-
-/*
- * Uses the current prcm set to tell if a rate is valid.
- * You can go slower, but not faster within a given rate set.
- */
-static long omap2_dpllcore_round_rate(unsigned long target_rate)
-{
-	u32 high, low, core_clk_src;
-
-	core_clk_src = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	core_clk_src &= OMAP24XX_CORE_CLK_SRC_MASK;
-
-	if (core_clk_src == CORE_CLK_SRC_DPLL) {	/* DPLL clockout */
-		high = curr_prcm_set->dpll_speed * 2;
-		low = curr_prcm_set->dpll_speed;
-	} else {				/* DPLL clockout x 2 */
-		high = curr_prcm_set->dpll_speed;
-		low = curr_prcm_set->dpll_speed / 2;
-	}
-
-#ifdef DOWN_VARIABLE_DPLL
-	if (target_rate > high)
-		return high;
-	else
-		return target_rate;
-#else
-	if (target_rate > low)
-		return high;
-	else
-		return low;
-#endif
-
-}
-
-static unsigned long omap2_dpllcore_recalc(struct clk *clk)
-{
-	return omap2xxx_clk_get_core_rate(clk);
-}
-
-static int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
-{
-	u32 cur_rate, low, mult, div, valid_rate, done_rate;
-	u32 bypass = 0;
-	struct prcm_config tmpset;
-	const struct dpll_data *dd;
-
-	cur_rate = omap2xxx_clk_get_core_rate(&dpll_ck);
-	mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	mult &= OMAP24XX_CORE_CLK_SRC_MASK;
-
-	if ((rate == (cur_rate / 2)) && (mult == 2)) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
-	} else if ((rate == (cur_rate * 2)) && (mult == 1)) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-	} else if (rate != cur_rate) {
-		valid_rate = omap2_dpllcore_round_rate(rate);
-		if (valid_rate != rate)
-			return -EINVAL;
-
-		if (mult == 1)
-			low = curr_prcm_set->dpll_speed;
-		else
-			low = curr_prcm_set->dpll_speed / 2;
-
-		dd = clk->dpll_data;
-		if (!dd)
-			return -EINVAL;
-
-		tmpset.cm_clksel1_pll = __raw_readl(dd->mult_div1_reg);
-		tmpset.cm_clksel1_pll &= ~(dd->mult_mask |
-					   dd->div1_mask);
-		div = ((curr_prcm_set->xtal_speed / 1000000) - 1);
-		tmpset.cm_clksel2_pll = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-		tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK;
-		if (rate > low) {
-			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2;
-			mult = ((rate / 2) / 1000000);
-			done_rate = CORE_CLK_SRC_DPLL_X2;
-		} else {
-			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL;
-			mult = (rate / 1000000);
-			done_rate = CORE_CLK_SRC_DPLL;
-		}
-		tmpset.cm_clksel1_pll |= (div << __ffs(dd->mult_mask));
-		tmpset.cm_clksel1_pll |= (mult << __ffs(dd->div1_mask));
-
-		/* Worst case */
-		tmpset.base_sdrc_rfr = SDRC_RFR_CTRL_BYPASS;
-
-		if (rate == curr_prcm_set->xtal_speed)	/* If asking for 1-1 */
-			bypass = 1;
-
-		/* For omap2xxx_sdrc_init_params() */
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-
-		/* Force dll lock mode */
-		omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr,
-			       bypass);
-
-		/* Errata: ret dll entry state */
-		omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
-		omap2xxx_sdrc_reprogram(done_rate, 0);
-	}
-
-	return 0;
-}
-
-/**
- * omap2_table_mpu_recalc - just return the MPU speed
- * @clk: virt_prcm_set struct clk
- *
- * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set.
- */
-static unsigned long omap2_table_mpu_recalc(struct clk *clk)
-{
-	return curr_prcm_set->mpu_speed;
-}
-
-/*
- * Look for a rate equal or less than the target rate given a configuration set.
- *
- * What's not entirely clear is "which" field represents the key field.
- * Some might argue L3-DDR, others ARM, others IVA. This code is simple and
- * just uses the ARM rates.
- */
-static long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
-{
-	struct prcm_config *ptr;
-	long highest_rate;
-
-	highest_rate = -EINVAL;
-
-	for (ptr = rate_table; ptr->mpu_speed; ptr++) {
-		if (!(ptr->flags & cpu_mask))
-			continue;
-		if (ptr->xtal_speed != sys_ck.rate)
-			continue;
-
-		highest_rate = ptr->mpu_speed;
-
-		/* Can check only after xtal frequency check */
-		if (ptr->mpu_speed <= rate)
-			break;
-	}
-	return highest_rate;
-}
-
-/* Sets basic clocks based on the specified rate */
-static int omap2_select_table_rate(struct clk *clk, unsigned long rate)
-{
-	u32 cur_rate, done_rate, bypass = 0, tmp;
-	struct prcm_config *prcm;
-	unsigned long found_speed = 0;
-	unsigned long flags;
-
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-
-		if (prcm->xtal_speed != sys_ck.rate)
-			continue;
-
-		if (prcm->mpu_speed <= rate) {
-			found_speed = prcm->mpu_speed;
-			break;
-		}
-	}
-
-	if (!found_speed) {
-		printk(KERN_INFO "Could not set MPU rate to %luMHz\n",
-		       rate / 1000000);
-		return -EINVAL;
-	}
-
-	curr_prcm_set = prcm;
-	cur_rate = omap2xxx_clk_get_core_rate(&dpll_ck);
-
-	if (prcm->dpll_speed == cur_rate / 2) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
-	} else if (prcm->dpll_speed == cur_rate * 2) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-	} else if (prcm->dpll_speed != cur_rate) {
-		local_irq_save(flags);
-
-		if (prcm->dpll_speed == prcm->xtal_speed)
-			bypass = 1;
-
-		if ((prcm->cm_clksel2_pll & OMAP24XX_CORE_CLK_SRC_MASK) ==
-		    CORE_CLK_SRC_DPLL_X2)
-			done_rate = CORE_CLK_SRC_DPLL_X2;
-		else
-			done_rate = CORE_CLK_SRC_DPLL;
-
-		/* MPU divider */
-		cm_write_mod_reg(prcm->cm_clksel_mpu, MPU_MOD, CM_CLKSEL);
-
-		/* dsp + iva1 div(2420), iva2.1(2430) */
-		cm_write_mod_reg(prcm->cm_clksel_dsp,
-				 OMAP24XX_DSP_MOD, CM_CLKSEL);
-
-		cm_write_mod_reg(prcm->cm_clksel_gfx, GFX_MOD, CM_CLKSEL);
-
-		/* Major subsystem dividers */
-		tmp = cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK;
-		cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD,
-				 CM_CLKSEL1);
-
-		if (cpu_is_omap2430())
-			cm_write_mod_reg(prcm->cm_clksel_mdm,
-					 OMAP2430_MDM_MOD, CM_CLKSEL);
-
-		/* x2 to enter omap2xxx_sdrc_init_params() */
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-
-		omap2_set_prcm(prcm->cm_clksel1_pll, prcm->base_sdrc_rfr,
-			       bypass);
-
-		omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
-		omap2xxx_sdrc_reprogram(done_rate, 0);
-
-		local_irq_restore(flags);
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_CPU_FREQ
-/*
- * Walk PRCM rate table and fillout cpufreq freq_table
- */
-static struct cpufreq_frequency_table freq_table[ARRAY_SIZE(rate_table)];
-
-void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-	struct prcm_config *prcm;
-	int i = 0;
-
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-		if (prcm->xtal_speed != sys_ck.rate)
-			continue;
-
-		/* don't put bypass rates in table */
-		if (prcm->dpll_speed == prcm->xtal_speed)
-			continue;
-
-		freq_table[i].index = i;
-		freq_table[i].frequency = prcm->mpu_speed / 1000;
-		i++;
-	}
-
-	if (i == 0) {
-		printk(KERN_WARNING "%s: failed to initialize frequency "
-		       "table\n", __func__);
-		return;
-	}
-
-	freq_table[i].index = i;
-	freq_table[i].frequency = CPUFREQ_TABLE_END;
-
-	*table = &freq_table[0];
-}
-#endif
-
-struct clk_functions omap2_clk_functions = {
-	.clk_enable		= omap2_clk_enable,
-	.clk_disable		= omap2_clk_disable,
-	.clk_round_rate		= omap2_clk_round_rate,
-	.clk_set_rate		= omap2_clk_set_rate,
-	.clk_set_parent		= omap2_clk_set_parent,
-	.clk_disable_unused	= omap2_clk_disable_unused,
-#ifdef	CONFIG_CPU_FREQ
-	.clk_init_cpufreq_table	= omap2_clk_init_cpufreq_table,
-#endif
-};
-
-static u32 omap2_get_apll_clkin(void)
-{
-	u32 aplls, srate = 0;
-
-	aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
-	aplls &= OMAP24XX_APLLS_CLKIN_MASK;
-	aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
-
-	if (aplls == APLLS_CLKIN_19_2MHZ)
-		srate = 19200000;
-	else if (aplls == APLLS_CLKIN_13MHZ)
-		srate = 13000000;
-	else if (aplls == APLLS_CLKIN_12MHZ)
-		srate = 12000000;
-
-	return srate;
-}
-
-static u32 omap2_get_sysclkdiv(void)
-{
-	u32 div;
-
-	div = __raw_readl(prcm_clksrc_ctrl);
-	div &= OMAP_SYSCLKDIV_MASK;
-	div >>= OMAP_SYSCLKDIV_SHIFT;
-
-	return div;
-}
-
-static unsigned long omap2_osc_clk_recalc(struct clk *clk)
-{
-	return omap2_get_apll_clkin() * omap2_get_sysclkdiv();
-}
-
-static unsigned long omap2_sys_clk_recalc(struct clk *clk)
-{
-	return clk->parent->rate / omap2_get_sysclkdiv();
-}
-
-/*
- * Set clocks for bypass mode for reboot to work.
- */
-void omap2_clk_prepare_for_reboot(void)
-{
-	u32 rate;
-
-	if (vclk == NULL || sclk == NULL)
-		return;
-
-	rate = clk_get_rate(sclk);
-	clk_set_rate(vclk, rate);
-}
-
-/*
- * Switch the MPU rate if specified on cmdline.
- * We cannot do this early until cmdline is parsed.
- */
-static int __init omap2_clk_arch_init(void)
-{
-	if (!mpurate)
-		return -EINVAL;
-
-	if (clk_set_rate(&virt_prcm_set, mpurate))
-		printk(KERN_ERR "Could not find matching MPU rate\n");
-
-	recalculate_root_clocks();
-
-	printk(KERN_INFO "Switched to new clocking rate (Crystal/DPLL/MPU): "
-	       "%ld.%01ld/%ld/%ld MHz\n",
-	       (sys_ck.rate / 1000000), (sys_ck.rate / 100000) % 10,
-	       (dpll_ck.rate / 1000000), (mpu_ck.rate / 1000000)) ;
-
-	return 0;
-}
-arch_initcall(omap2_clk_arch_init);
-
-int __init omap2_clk_init(void)
-{
-	struct prcm_config *prcm;
-	struct omap_clk *c;
-	u32 clkrate;
-	u16 cpu_clkflg;
-
-	if (cpu_is_omap242x()) {
-		prcm_clksrc_ctrl = OMAP2420_PRCM_CLKSRC_CTRL;
-		cpu_mask = RATE_IN_242X;
-		cpu_clkflg = CK_242X;
-	} else if (cpu_is_omap2430()) {
-		prcm_clksrc_ctrl = OMAP2430_PRCM_CLKSRC_CTRL;
-		cpu_mask = RATE_IN_243X;
-		cpu_clkflg = CK_243X;
-	}
-
-	clk_init(&omap2_clk_functions);
-
-	for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
-		clk_preinit(c->lk.clk);
-
-	osc_ck.rate = omap2_osc_clk_recalc(&osc_ck);
-	propagate_rate(&osc_ck);
-	sys_ck.rate = omap2_sys_clk_recalc(&sys_ck);
-	propagate_rate(&sys_ck);
-
-	for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
-		if (c->cpu & cpu_clkflg) {
-			clkdev_add(&c->lk);
-			clk_register(c->lk.clk);
-			omap2_init_clk_clkdm(c->lk.clk);
-		}
-
-	/* Check the MPU rate set by bootloader */
-	clkrate = omap2xxx_clk_get_core_rate(&dpll_ck);
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-		if (prcm->xtal_speed != sys_ck.rate)
-			continue;
-		if (prcm->dpll_speed <= clkrate)
-			 break;
-	}
-	curr_prcm_set = prcm;
-
-	recalculate_root_clocks();
-
-	printk(KERN_INFO "Clocking rate (Crystal/DPLL/MPU): "
-	       "%ld.%01ld/%ld/%ld MHz\n",
-	       (sys_ck.rate / 1000000), (sys_ck.rate / 100000) % 10,
-	       (dpll_ck.rate / 1000000), (mpu_ck.rate / 1000000)) ;
-
-	/*
-	 * Only enable those clocks we will need, let the drivers
-	 * enable other clocks as necessary
-	 */
-	clk_enable_init_clocks();
-
-	/* Avoid sleeping sleeping during omap2_clk_prepare_for_reboot() */
-	vclk = clk_get(NULL, "virt_prcm_set");
-	sclk = clk_get(NULL, "sys_ck");
-
-	return 0;
-}