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qemu/hw/misc/omap_clk.c

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/*
* OMAP clocks.
*
* Copyright (C) 2006-2008 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, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/irq.h"
#include "hw/arm/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)
#define CLOCK_IN_OMAP242X (1 << 14)
#define CLOCK_IN_OMAP243X (1 << 15)
#define CLOCK_IN_OMAP343X (1 << 16)
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 |
CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
};
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,
};
static struct clk usb_clk0 = { /* 6 MHz output on W4_USB_CLK0 */
.name = "usb_clk0",
.alias = "usb.clko",
/* Direct from ULPD, no parent */
.rate = 6000000,
.flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
};
static struct clk usb_hhc_ck1510 = {
.name = "usb_hhc_ck",
/* Direct from ULPD, no parent */
.rate = 48000000, /* Actually 2 clocks, 12MHz and 48MHz */
.flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
};
static struct clk usb_hhc_ck16xx = {
.name = "usb_hhc_ck",
/* Direct from ULPD, no parent */
.rate = 48000000,
/* OTG_SYSCON_2.OTG_PADEN == 0 (not 1510-compatible) */
.flags = CLOCK_IN_OMAP16XX,
};
static struct clk usb_w2fc_mclk = {
.name = "usb_w2fc_mclk",
.alias = "usb_w2fc_ck",
.parent = &ck_48m,
.rate = 48000000,
.flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
};
static struct clk mclk_1510 = {
.name = "mclk",
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.rate = 12000000,
.flags = CLOCK_IN_OMAP1510,
};
static struct clk bclk_310 = {
.name = "bt_mclk_out", /* Alias midi_mclk_out? */
.parent = &armper_ck,
.flags = CLOCK_IN_OMAP310,
};
static struct clk mclk_310 = {
.name = "com_mclk_out",
.parent = &armper_ck,
.flags = CLOCK_IN_OMAP310,
};
static struct clk mclk_16xx = {
.name = "mclk",
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.flags = CLOCK_IN_OMAP16XX,
};
static struct clk bclk_1510 = {
.name = "bclk",
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.rate = 12000000,
.flags = CLOCK_IN_OMAP1510,
};
static struct clk bclk_16xx = {
.name = "bclk",
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.flags = CLOCK_IN_OMAP16XX,
};
static struct clk mmc1_ck = {
.name = "mmc_ck",
.id = 1,
/* Functional clock is direct from ULPD, interface clock is ARMPER */
.parent = &armper_ck, /* either armper_ck or dpll4 */
.rate = 48000000,
.flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
};
static struct clk mmc2_ck = {
.name = "mmc_ck",
.id = 2,
/* Functional clock is direct from ULPD, interface clock is ARMPER */
.parent = &armper_ck,
.rate = 48000000,
.flags = CLOCK_IN_OMAP16XX,
};
static struct clk cam_mclk = {
.name = "cam.mclk",
.flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
.rate = 12000000,
};
static struct clk cam_exclk = {
.name = "cam.exclk",
.flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
/* Either 12M from cam.mclk or 48M from dpll4 */
.parent = &cam_mclk,
};
static struct clk cam_lclk = {
.name = "cam.lclk",
.flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
};
static struct clk i2c_fck = {
.name = "i2c_fck",
.id = 1,
.flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
ALWAYS_ENABLED,
.parent = &armxor_ck,
};
static struct clk i2c_ick = {
.name = "i2c_ick",
.id = 1,
.flags = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
.parent = &armper_ck,
};
static struct clk clk32k = {
.name = "clk32-kHz",
.flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.parent = &xtal_osc32k,
};
static struct clk ref_clk = {
.name = "ref_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.rate = 12000000, /* 12 MHz or 13 MHz or 19.2 MHz */
/*.parent = sys.xtalin */
};
static struct clk apll_96m = {
.name = "apll_96m",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.rate = 96000000,
/*.parent = ref_clk */
};
static struct clk apll_54m = {
.name = "apll_54m",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.rate = 54000000,
/*.parent = ref_clk */
};
static struct clk sys_clk = {
.name = "sys_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.rate = 32768,
/*.parent = sys.xtalin */
};
static struct clk sleep_clk = {
.name = "sleep_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.rate = 32768,
/*.parent = sys.xtalin */
};
static struct clk dpll_ck = {
.name = "dpll",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.parent = &ref_clk,
};
static struct clk dpll_x2_ck = {
.name = "dpll_x2",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.parent = &ref_clk,
};
static struct clk wdt1_sys_clk = {
.name = "wdt1_sys_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
.rate = 32768,
/*.parent = sys.xtalin */
};
static struct clk func_96m_clk = {
.name = "func_96m_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.divisor = 1,
.parent = &apll_96m,
};
static struct clk func_48m_clk = {
.name = "func_48m_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.divisor = 2,
.parent = &apll_96m,
};
static struct clk func_12m_clk = {
.name = "func_12m_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.divisor = 8,
.parent = &apll_96m,
};
static struct clk func_54m_clk = {
.name = "func_54m_clk",
.flags = CLOCK_IN_OMAP242X,
.divisor = 1,
.parent = &apll_54m,
};
static struct clk sys_clkout = {
.name = "clkout",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk sys_clkout2 = {
.name = "clkout2",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_clk = {
.name = "core_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &dpll_x2_ck, /* Switchable between dpll_ck and clk32k */
};
static struct clk l3_clk = {
.name = "l3_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
};
static struct clk core_l4_iclk = {
.name = "core_l4_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &l3_clk,
};
static struct clk wu_l4_iclk = {
.name = "wu_l4_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &l3_clk,
};
static struct clk core_l3_iclk = {
.name = "core_l3_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
};
static struct clk core_l4_usb_clk = {
.name = "core_l4_usb_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &l3_clk,
};
static struct clk wu_gpt1_clk = {
.name = "wu_gpt1_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk wu_32k_clk = {
.name = "wu_32k_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk uart1_fclk = {
.name = "uart1_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_48m_clk,
};
static struct clk uart1_iclk = {
.name = "uart1_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
};
static struct clk uart2_fclk = {
.name = "uart2_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_48m_clk,
};
static struct clk uart2_iclk = {
.name = "uart2_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
};
static struct clk uart3_fclk = {
.name = "uart3_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_48m_clk,
};
static struct clk uart3_iclk = {
.name = "uart3_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
};
static struct clk mpu_fclk = {
.name = "mpu_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
};
static struct clk mpu_iclk = {
.name = "mpu_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
};
static struct clk int_m_fclk = {
.name = "int_m_fclk",
.alias = "mpu_intc_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
};
static struct clk int_m_iclk = {
.name = "int_m_iclk",
.alias = "mpu_intc_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
};
static struct clk core_gpt2_clk = {
.name = "core_gpt2_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt3_clk = {
.name = "core_gpt3_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt4_clk = {
.name = "core_gpt4_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt5_clk = {
.name = "core_gpt5_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt6_clk = {
.name = "core_gpt6_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt7_clk = {
.name = "core_gpt7_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt8_clk = {
.name = "core_gpt8_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt9_clk = {
.name = "core_gpt9_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt10_clk = {
.name = "core_gpt10_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt11_clk = {
.name = "core_gpt11_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk core_gpt12_clk = {
.name = "core_gpt12_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
};
static struct clk mcbsp1_clk = {
.name = "mcbsp1_cg",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.divisor = 2,
.parent = &func_96m_clk,
};
static struct clk mcbsp2_clk = {
.name = "mcbsp2_cg",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.divisor = 2,
.parent = &func_96m_clk,
};
static struct clk emul_clk = {
.name = "emul_ck",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_54m_clk,
};
static struct clk sdma_fclk = {
.name = "sdma_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &l3_clk,
};
static struct clk sdma_iclk = {
.name = "sdma_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l3_iclk, /* core_l4_iclk for the configuration port */
};
static struct clk i2c1_fclk = {
.name = "i2c1.fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_12m_clk,
.divisor = 1,
};
static struct clk i2c1_iclk = {
.name = "i2c1.iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
};
static struct clk i2c2_fclk = {
.name = "i2c2.fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_12m_clk,
.divisor = 1,
};
static struct clk i2c2_iclk = {
.name = "i2c2.iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
};
static struct clk gpio_dbclk[5] = {
{
.name = "gpio1_dbclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &wu_32k_clk,
}, {
.name = "gpio2_dbclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &wu_32k_clk,
}, {
.name = "gpio3_dbclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &wu_32k_clk,
}, {
.name = "gpio4_dbclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &wu_32k_clk,
}, {
.name = "gpio5_dbclk",
.flags = CLOCK_IN_OMAP243X,
.parent = &wu_32k_clk,
},
};
static struct clk gpio_iclk = {
.name = "gpio_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &wu_l4_iclk,
};
static struct clk mmc_fck = {
.name = "mmc_fclk",
.flags = CLOCK_IN_OMAP242X,
.parent = &func_96m_clk,
};
static struct clk mmc_ick = {
.name = "mmc_iclk",
.flags = CLOCK_IN_OMAP242X,
.parent = &core_l4_iclk,
};
static struct clk spi_fclk[3] = {
{
.name = "spi1_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_48m_clk,
}, {
.name = "spi2_fclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_48m_clk,
}, {
.name = "spi3_fclk",
.flags = CLOCK_IN_OMAP243X,
.parent = &func_48m_clk,
},
};
static struct clk dss_clk[2] = {
{
.name = "dss_clk1",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_clk,
}, {
.name = "dss_clk2",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &sys_clk,
},
};
static struct clk dss_54m_clk = {
.name = "dss_54m_clk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &func_54m_clk,
};
static struct clk dss_l3_iclk = {
.name = "dss_l3_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l3_iclk,
};
static struct clk dss_l4_iclk = {
.name = "dss_l4_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
};
static struct clk spi_iclk[3] = {
{
.name = "spi1_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
}, {
.name = "spi2_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
}, {
.name = "spi3_iclk",
.flags = CLOCK_IN_OMAP243X,
.parent = &core_l4_iclk,
},
};
static struct clk omapctrl_clk = {
.name = "omapctrl_iclk",
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
/* XXX Should be in WKUP domain */
.parent = &core_l4_iclk,
};
static struct clk *onchip_clks[] = {
/* OMAP 1 */
/* non-ULPD clocks */
&xtal_osc12m,
&xtal_osc32k,
&ck_ref,
&dpll1,
&dpll2,
&dpll3,
&dpll4,
&apll,
&ck_48m,
/* CK_GEN1 clocks */
&clkm1,
&ck_dpll1out,
&sossi_ck,
&arm_ck,
&armper_ck,
&arm_gpio_ck,
&armxor_ck,
&armtim_ck,
&armwdt_ck,
&arminth_ck15xx, &arminth_ck16xx,
/* CK_GEN2 clocks */
&clkm2,
&dsp_ck,
&dspmmu_ck,
&dspper_ck,
&dspxor_ck,
&dsptim_ck,
/* CK_GEN3 clocks */
&clkm3,
&tc_ck,
&tipb_ck,
&l3_ocpi_ck,
&tc1_ck,
&tc2_ck,
&dma_ck,
&dma_lcdfree_ck,
&api_ck,
&lb_ck,
&lbfree_ck,
&hsab_ck,
&rhea1_ck,
&rhea2_ck,
&lcd_ck_16xx,
&lcd_ck_1510,
/* ULPD clocks */
&uart1_1510,
&uart1_16xx,
&uart2_ck,
&uart3_1510,
&uart3_16xx,
&usb_clk0,
&usb_hhc_ck1510, &usb_hhc_ck16xx,
&mclk_1510, &mclk_16xx, &mclk_310,
&bclk_1510, &bclk_16xx, &bclk_310,
&mmc1_ck,
&mmc2_ck,
&cam_mclk,
&cam_exclk,
&cam_lclk,
&clk32k,
&usb_w2fc_mclk,
/* Virtual clocks */
&i2c_fck,
&i2c_ick,
/* OMAP 2 */
&ref_clk,
&apll_96m,
&apll_54m,
&sys_clk,
&sleep_clk,
&dpll_ck,
&dpll_x2_ck,
&wdt1_sys_clk,
&func_96m_clk,
&func_48m_clk,
&func_12m_clk,
&func_54m_clk,
&sys_clkout,
&sys_clkout2,
&core_clk,
&l3_clk,
&core_l4_iclk,
&wu_l4_iclk,
&core_l3_iclk,
&core_l4_usb_clk,
&wu_gpt1_clk,
&wu_32k_clk,
&uart1_fclk,
&uart1_iclk,
&uart2_fclk,
&uart2_iclk,
&uart3_fclk,
&uart3_iclk,
&mpu_fclk,
&mpu_iclk,
&int_m_fclk,
&int_m_iclk,
&core_gpt2_clk,
&core_gpt3_clk,
&core_gpt4_clk,
&core_gpt5_clk,
&core_gpt6_clk,
&core_gpt7_clk,
&core_gpt8_clk,
&core_gpt9_clk,
&core_gpt10_clk,
&core_gpt11_clk,
&core_gpt12_clk,
&mcbsp1_clk,
&mcbsp2_clk,
&emul_clk,
&sdma_fclk,
&sdma_iclk,
&i2c1_fclk,
&i2c1_iclk,
&i2c2_fclk,
&i2c2_iclk,
&gpio_dbclk[0],
&gpio_dbclk[1],
&gpio_dbclk[2],
&gpio_dbclk[3],
&gpio_iclk,
&mmc_fck,
&mmc_ick,
&spi_fclk[0],
&spi_iclk[0],
&spi_fclk[1],
&spi_iclk[1],
&spi_fclk[2],
&spi_iclk[2],
&dss_clk[0],
&dss_clk[1],
&dss_54m_clk,
&dss_l3_iclk,
&dss_l4_iclk,
&omapctrl_clk,
NULL
};
void omap_clk_adduser(struct clk *clk, qemu_irq user)
{
qemu_irq *i;
for (i = clk->users; *i; i ++);
*i = user;
}
struct clk *omap_findclk(struct omap_mpu_state_s *mpu, const char *name)
{
struct clk *i;
for (i = mpu->clks; i->name; i ++)
if (!strcmp(i->name, name) || (i->alias && !strcmp(i->alias, name)))
return i;
hw_error("%s: %s not found\n", __func__, name);
}
void omap_clk_get(struct clk *clk)
{
clk->usecount ++;
}
void omap_clk_put(struct clk *clk)
{
if (!(clk->usecount --))
hw_error("%s: %s is not in use\n", __func__, clk->name);
}
static void omap_clk_update(struct clk *clk)
{
int parent, running;
qemu_irq *user;
struct clk *i;
if (clk->parent)
parent = clk->parent->running;
else
parent = 1;
running = parent && (clk->enabled ||
((clk->flags & ALWAYS_ENABLED) && clk->usecount));
if (clk->running != running) {
clk->running = running;
for (user = clk->users; *user; user ++)
qemu_set_irq(*user, running);
for (i = clk->child1; i; i = i->sibling)
omap_clk_update(i);
}
}
static void omap_clk_rate_update_full(struct clk *clk, unsigned long int rate,
unsigned long int div, unsigned long int mult)
{
struct clk *i;
qemu_irq *user;
clk->rate = muldiv64(rate, mult, div);
if (clk->running)
for (user = clk->users; *user; user ++)
qemu_irq_raise(*user);
for (i = clk->child1; i; i = i->sibling)
omap_clk_rate_update_full(i, rate,
div * i->divisor, mult * i->multiplier);
}
static void omap_clk_rate_update(struct clk *clk)
{
struct clk *i;
unsigned long int div, mult = div = 1;
for (i = clk; i->parent; i = i->parent) {
div *= i->divisor;
mult *= i->multiplier;
}
omap_clk_rate_update_full(clk, i->rate, div, mult);
}
void omap_clk_reparent(struct clk *clk, struct clk *parent)
{
struct clk **p;
if (clk->parent) {
for (p = &clk->parent->child1; *p != clk; p = &(*p)->sibling);
*p = clk->sibling;
}
clk->parent = parent;
if (parent) {
clk->sibling = parent->child1;
parent->child1 = clk;
omap_clk_update(clk);
omap_clk_rate_update(clk);
} else
clk->sibling = NULL;
}
void omap_clk_onoff(struct clk *clk, int on)
{
clk->enabled = on;
omap_clk_update(clk);
}
void omap_clk_canidle(struct clk *clk, int can)
{
if (can)
omap_clk_put(clk);
else
omap_clk_get(clk);
}
void omap_clk_setrate(struct clk *clk, int divide, int multiply)
{
clk->divisor = divide;
clk->multiplier = multiply;
omap_clk_rate_update(clk);
}
int64_t omap_clk_getrate(omap_clk clk)
{
return clk->rate;
}
void omap_clk_init(struct omap_mpu_state_s *mpu)
{
struct clk **i, *j, *k;
int count;
int flag;
if (cpu_is_omap310(mpu))
flag = CLOCK_IN_OMAP310;
else if (cpu_is_omap1510(mpu))
flag = CLOCK_IN_OMAP1510;
else if (cpu_is_omap2410(mpu) || cpu_is_omap2420(mpu))
flag = CLOCK_IN_OMAP242X;
else if (cpu_is_omap2430(mpu))
flag = CLOCK_IN_OMAP243X;
else if (cpu_is_omap3430(mpu))
flag = CLOCK_IN_OMAP243X;
else
return;
for (i = onchip_clks, count = 0; *i; i ++)
if ((*i)->flags & flag)
count ++;
mpu->clks = g_new0(struct clk, count + 1);
for (i = onchip_clks, j = mpu->clks; *i; i ++)
if ((*i)->flags & flag) {
memcpy(j, *i, sizeof(struct clk));
for (k = mpu->clks; k < j; k ++)
if (j->parent && !strcmp(j->parent->name, k->name)) {
j->parent = k;
j->sibling = k->child1;
k->child1 = j;
} else if (k->parent && !strcmp(k->parent->name, j->name)) {
k->parent = j;
k->sibling = j->child1;
j->child1 = k;
}
j->divisor = j->divisor ?: 1;
j->multiplier = j->multiplier ?: 1;
j ++;
}
for (j = mpu->clks; count --; j ++) {
omap_clk_update(j);
omap_clk_rate_update(j);
}
}
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