/* * OMAP clocks. * * Copyright (C) 2006-2007 Andrzej Zaborowski  <balrog@zabor.org> * * Clocks data comes in part from arch/arm/mach-omap1/clock.h in Linux. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */#include "hw.h"#include "omap.h"struct clk {    const char *name;    const char *alias;    struct clk *parent;    struct clk *child1;    struct clk *sibling;#define ALWAYS_ENABLED		(1 << 0)#define CLOCK_IN_OMAP310	(1 << 10)#define CLOCK_IN_OMAP730	(1 << 11)#define CLOCK_IN_OMAP1510	(1 << 12)#define CLOCK_IN_OMAP16XX	(1 << 13)    uint32_t flags;    int id;    int running;		/* Is currently ticking */    int enabled;		/* Is enabled, regardless of its input clk */    unsigned long rate;		/* Current rate (if .running) */    unsigned int divisor;	/* Rate relative to input (if .enabled) */    unsigned int multiplier;	/* Rate relative to input (if .enabled) */    qemu_irq users[16];		/* Who to notify on change */    int usecount;		/* Automatically idle when unused */};static struct clk xtal_osc12m = {    .name	= "xtal_osc_12m",    .rate	= 12000000,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk xtal_osc32k = {    .name	= "xtal_osc_32k",    .rate	= 32768,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk ck_ref = {    .name	= "ck_ref",    .alias	= "clkin",    .parent	= &xtal_osc12m,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};/* If a dpll is disabled it becomes a bypass, child clocks don't stop */static struct clk dpll1 = {    .name	= "dpll1",    .parent	= &ck_ref,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk dpll2 = {    .name	= "dpll2",    .parent	= &ck_ref,    .flags	= CLOCK_IN_OMAP310 | ALWAYS_ENABLED,};static struct clk dpll3 = {    .name	= "dpll3",    .parent	= &ck_ref,    .flags	= CLOCK_IN_OMAP310 | ALWAYS_ENABLED,};static struct clk dpll4 = {    .name	= "dpll4",    .parent	= &ck_ref,    .multiplier	= 4,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk apll = {    .name	= "apll",    .parent	= &ck_ref,    .multiplier	= 48,    .divisor	= 12,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk ck_48m = {    .name	= "ck_48m",    .parent	= &dpll4,	/* either dpll4 or apll */    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk ck_dpll1out = {    .name	= "ck_dpll1out",    .parent	= &dpll1,    .flags	= CLOCK_IN_OMAP16XX,};static struct clk sossi_ck = {    .name	= "ck_sossi",    .parent	= &ck_dpll1out,    .flags	= CLOCK_IN_OMAP16XX,};static struct clk clkm1 = {    .name	= "clkm1",    .alias	= "ck_gen1",    .parent	= &dpll1,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk clkm2 = {    .name	= "clkm2",    .alias	= "ck_gen2",    .parent	= &dpll1,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk clkm3 = {    .name	= "clkm3",    .alias	= "ck_gen3",    .parent	= &dpll1,	/* either dpll1 or ck_ref */    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk arm_ck = {    .name	= "arm_ck",    .alias	= "mpu_ck",    .parent	= &clkm1,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk armper_ck = {    .name	= "armper_ck",    .alias	= "mpuper_ck",    .parent	= &clkm1,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk arm_gpio_ck = {    .name	= "arm_gpio_ck",    .alias	= "mpu_gpio_ck",    .parent	= &clkm1,    .divisor	= 1,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,};static struct clk armxor_ck = {    .name	= "armxor_ck",    .alias	= "mpuxor_ck",    .parent	= &ck_ref,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk armtim_ck = {    .name	= "armtim_ck",    .alias	= "mputim_ck",    .parent	= &ck_ref,	/* either CLKIN or DPLL1 */    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk armwdt_ck = {    .name	= "armwdt_ck",    .alias	= "mpuwd_ck",    .parent	= &clkm1,    .divisor	= 14,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk arminth_ck16xx = {    .name	= "arminth_ck",    .parent	= &arm_ck,    .flags	= CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,    /* Note: On 16xx the frequency can be divided by 2 by programming     * ARM_CKCTL:ARM_INTHCK_SEL(14) to 1     *     * 1510 version is in TC clocks.     */};static struct clk dsp_ck = {    .name	= "dsp_ck",    .parent	= &clkm2,    .flags	= CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,};static struct clk dspmmu_ck = {    .name	= "dspmmu_ck",    .parent	= &clkm2,    .flags	= CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |            ALWAYS_ENABLED,};static struct clk dspper_ck = {    .name	= "dspper_ck",    .parent	= &clkm2,    .flags	= CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,};static struct clk dspxor_ck = {    .name	= "dspxor_ck",    .parent	= &ck_ref,    .flags	= CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,};static struct clk dsptim_ck = {    .name	= "dsptim_ck",    .parent	= &ck_ref,    .flags	= CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,};static struct clk tc_ck = {    .name	= "tc_ck",    .parent	= &clkm3,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |            CLOCK_IN_OMAP730 | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk arminth_ck15xx = {    .name	= "arminth_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,    /* Note: On 1510 the frequency follows TC_CK     *     * 16xx version is in MPU clocks.     */};static struct clk tipb_ck = {    /* No-idle controlled by "tc_ck" */    .name	= "tipb_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,};static struct clk l3_ocpi_ck = {    /* No-idle controlled by "tc_ck" */    .name	= "l3_ocpi_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP16XX,};static struct clk tc1_ck = {    .name	= "tc1_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP16XX,};static struct clk tc2_ck = {    .name	= "tc2_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP16XX,};static struct clk dma_ck = {    /* No-idle controlled by "tc_ck" */    .name	= "dma_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk dma_lcdfree_ck = {    .name	= "dma_lcdfree_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,};static struct clk api_ck = {    .name	= "api_ck",    .alias	= "mpui_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,};static struct clk lb_ck = {    .name	= "lb_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,};static struct clk lbfree_ck = {    .name	= "lbfree_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,};static struct clk hsab_ck = {    .name	= "hsab_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,};static struct clk rhea1_ck = {    .name	= "rhea1_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,};static struct clk rhea2_ck = {    .name	= "rhea2_ck",    .parent	= &tc_ck,    .flags	= CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,};static struct clk lcd_ck_16xx = {    .name	= "lcd_ck",    .parent	= &clkm3,    .flags	= CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP730,};static struct clk lcd_ck_1510 = {    .name	= "lcd_ck",    .parent	= &clkm3,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,};static struct clk uart1_1510 = {    .name	= "uart1_ck",    /* Direct from ULPD, no real parent */    .parent	= &armper_ck,	/* either armper_ck or dpll4 */    .rate	= 12000000,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,};static struct clk uart1_16xx = {    .name	= "uart1_ck",    /* Direct from ULPD, no real parent */    .parent	= &armper_ck,    .rate	= 48000000,    .flags	= CLOCK_IN_OMAP16XX,};static struct clk uart2_ck = {    .name	= "uart2_ck",    /* Direct from ULPD, no real parent */    .parent	= &armper_ck,	/* either armper_ck or dpll4 */    .rate	= 12000000,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |            ALWAYS_ENABLED,};static struct clk uart3_1510 = {    .name	= "uart3_ck",    /* Direct from ULPD, no real parent */    .parent	= &armper_ck,	/* either armper_ck or dpll4 */    .rate	= 12000000,    .flags	= CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,};static struct clk uart3_16xx = {    .name	= "uart3_ck",    /* Direct from ULPD, no real parent */    .parent	= &armper_ck,    .rate	= 48000000,    .flags	= CLOCK_IN_OMAP16XX,};