// SPDX-License-Identifier: GPL-2.0-only
/*
* OMAP3 powerdomain definitions
*
* Copyright (C) 2007-2008, 2011 Texas Instruments, Inc.
* Copyright (C) 2007-2011 Nokia Corporation
*
* Paul Walmsley, Jouni Högander
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/bug.h>
#include "soc.h"
#include "powerdomain.h"
#include "powerdomains2xxx_3xxx_data.h"
#include "prcm-common.h"
#include "prm2xxx_3xxx.h"
#include "prm-regbits-34xx.h"
#include "cm2xxx_3xxx.h"
#include "cm-regbits-34xx.h"
/*
* 34XX-specific powerdomains, dependencies
*/
/*
* Powerdomains
*/
static struct powerdomain iva2_pwrdm = {
.name = "iva2_pwrdm",
.prcm_offs = OMAP3430_IVA2_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.banks = 4,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET,
[1] = PWRSTS_OFF_RET,
[2] = PWRSTS_OFF_RET,
[3] = PWRSTS_OFF_RET,
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON,
[1] = PWRSTS_ON,
[2] = PWRSTS_OFF_ON,
[3] = PWRSTS_ON,
},
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain mpu_3xxx_pwrdm = {
.name = "mpu_pwrdm",
.prcm_offs = MPU_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.flags = PWRDM_HAS_MPU_QUIRK,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET,
},
.pwrsts_mem_on = {
[0] = PWRSTS_OFF_ON,
},
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain mpu_am35x_pwrdm = {
.name = "mpu_pwrdm",
.prcm_offs = MPU_MOD,
.pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_ON,
.flags = PWRDM_HAS_MPU_QUIRK,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_ON,
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON,
},
.voltdm = { .name = "mpu_iva" },
};
/*
* The USBTLL Save-and-Restore mechanism is broken on
* 3430s up to ES3.0 and 3630ES1.0. Hence this feature
* needs to be disabled on these chips.
* Refer: 3430 errata ID i459 and 3630 errata ID i579
*
* Note: setting the SAR flag could help for errata ID i478
* which applies to 3430 <= ES3.1, but since the SAR feature
* is broken, do not use it.
*/
static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
.name = "core_pwrdm",
.prcm_offs = CORE_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.banks = 2,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
[1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain core_3xxx_es3_1_pwrdm = {
.name = "core_pwrdm",
.prcm_offs = CORE_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
/*
* Setting the SAR flag for errata ID i478 which applies
* to 3430 <= ES3.1
*/
.flags = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
.banks = 2,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
[1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain core_am35x_pwrdm = {
.name = "core_pwrdm",
.prcm_offs = CORE_MOD,
.pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_ON,
.banks = 2,
.pwrsts_mem_ret = {
[0] = PWRSTS_ON, /* MEM1RETSTATE */
[1] = PWRSTS_ON, /* MEM2RETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEM1ONSTATE */
[1] = PWRSTS_ON, /* MEM2ONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain dss_pwrdm = {
.name = "dss_pwrdm",
.prcm_offs = OMAP3430_DSS_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_RET,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain dss_am35x_pwrdm = {
.name = "dss_pwrdm",
.prcm_offs = OMAP3430_DSS_MOD,
.pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_ON,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_ON, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
/*
* Although the 34XX TRM Rev K Table 4-371 notes that retention is a
* possible SGX powerstate, the SGX device itself does not support
* retention.
*/
static struct powerdomain sgx_pwrdm = {
.name = "sgx_pwrdm",
.prcm_offs = OMAP3430ES2_SGX_MOD,
/* XXX This is accurate for 3430 SGX, but what about GFX? */
.pwrsts = PWRSTS_OFF_ON,
.pwrsts_logic_ret = PWRSTS_RET,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain sgx_am35x_pwrdm = {
.name = "sgx_pwrdm",
.prcm_offs = OMAP3430ES2_SGX_MOD,
.pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_ON,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_ON, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain cam_pwrdm = {
.name = "cam_pwrdm",
.prcm_offs = OMAP3430_CAM_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_RET,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain per_pwrdm = {
.name = "per_pwrdm",
.prcm_offs = OMAP3430_PER_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain per_am35x_pwrdm = {
.name = "per_pwrdm",
.prcm_offs = OMAP3430_PER_MOD,
.pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_ON,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_ON, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain emu_pwrdm = {
.name = "emu_pwrdm",
.prcm_offs = OMAP3430_EMU_MOD,
.voltdm = { .name = "core" },
};
static struct powerdomain neon_pwrdm = {
.name = "neon_pwrdm",
.prcm_offs = OMAP3430_NEON_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_RET,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain neon_am35x_pwrdm = {
.name = "neon_pwrdm",
.prcm_offs = OMAP3430_NEON_MOD,
.pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_ON,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain usbhost_pwrdm = {
.name = "usbhost_pwrdm",
.prcm_offs = OMAP3430ES2_USBHOST_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_RET,
/*
* REVISIT: Enabling usb host save and restore mechanism seems to
* leave the usb host domain permanently in ACTIVE mode after
* changing the usb host power domain state from OFF to active once.
* Disabling for now.
*/
/*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */
},
.pwrsts_mem_on = {
[0] = PWRSTS_ON, /* MEMONSTATE */
},
.voltdm = { .name = "core" },
};
static struct powerdomain dpll1_pwrdm = {
.name = "dpll1_pwrdm",
.prcm_offs = MPU_MOD,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain dpll2_pwrdm = {
.name = "dpll2_pwrdm",
.prcm_offs = OMAP3430_IVA2_MOD,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain dpll3_pwrdm = {
.name = "dpll3_pwrdm",
.prcm_offs = PLL_MOD,
.voltdm = { .name = "core" },
};
static struct powerdomain dpll4_pwrdm = {
.name = "dpll4_pwrdm",
.prcm_offs = PLL_MOD,
.voltdm = { .name = "core" },
};
static struct powerdomain dpll5_pwrdm = {
.name = "dpll5_pwrdm",
.prcm_offs = PLL_MOD,
.voltdm = { .name = "core" },
};
static struct powerdomain alwon_81xx_pwrdm = {
.name = "alwon_pwrdm",
.prcm_offs = TI81XX_PRM_ALWON_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "core" },
};
static struct powerdomain device_81xx_pwrdm = {
.name = "device_pwrdm",
.prcm_offs = TI81XX_PRM_DEVICE_MOD,
.voltdm = { .name = "core" },
};
static struct powerdomain gem_814x_pwrdm = {
.name = "gem_pwrdm",
.prcm_offs = TI814X_PRM_DSP_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "dsp" },
};
static struct powerdomain ivahd_814x_pwrdm = {
.name = "ivahd_pwrdm",
.prcm_offs = TI814X_PRM_HDVICP_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "iva" },
};
static struct powerdomain hdvpss_814x_pwrdm = {
.name = "hdvpss_pwrdm",
.prcm_offs = TI814X_PRM_HDVPSS_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "dsp" },
};
static struct powerdomain sgx_814x_pwrdm = {
.name = "sgx_pwrdm",
.prcm_offs = TI814X_PRM_GFX_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "core" },
};
static struct powerdomain isp_814x_pwrdm = {
.name = "isp_pwrdm",
.prcm_offs = TI814X_PRM_ISP_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "core" },
};
static struct powerdomain active_81xx_pwrdm = {
.name = "active_pwrdm",
.prcm_offs = TI816X_PRM_ACTIVE_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "core" },
};
static struct powerdomain default_81xx_pwrdm = {
.name = "default_pwrdm",
.prcm_offs = TI81XX_PRM_DEFAULT_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "core" },
};
static struct powerdomain ivahd0_816x_pwrdm = {
.name = "ivahd0_pwrdm",
.prcm_offs = TI816X_PRM_IVAHD0_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain ivahd1_816x_pwrdm = {
.name = "ivahd1_pwrdm",
.prcm_offs = TI816X_PRM_IVAHD1_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain ivahd2_816x_pwrdm = {
.name = "ivahd2_pwrdm",
.prcm_offs = TI816X_PRM_IVAHD2_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "mpu_iva" },
};
static struct powerdomain sgx_816x_pwrdm = {
.name = "sgx_pwrdm",
.prcm_offs = TI816X_PRM_SGX_MOD,
.pwrsts = PWRSTS_OFF_ON,
.voltdm = { .name = "core" },
};
/* As powerdomains are added or removed above, this list must also be changed */
static struct powerdomain *powerdomains_omap3430_common[] __initdata = {
&wkup_omap2_pwrdm,
&iva2_pwrdm,
&mpu_3xxx_pwrdm,
&neon_pwrdm,
&cam_pwrdm,
&dss_pwrdm,
&per_pwrdm,
&emu_pwrdm,
&dpll1_pwrdm,
&dpll2_pwrdm,
&dpll3_pwrdm,
&dpll4_pwrdm,
NULL
};
static struct powerdomain *powerdomains_omap3430es1[] __initdata = {
&gfx_omap2_pwrdm,
&core_3xxx_pre_es3_1_pwrdm,
NULL
};
/* also includes 3630ES1.0 */
static struct powerdomain *powerdomains_omap3430es2_es3_0[] __initdata = {
&core_3xxx_pre_es3_1_pwrdm,
&sgx_pwrdm,
&usbhost_pwrdm,
&dpll5_pwrdm,
NULL
};
/* also includes 3630ES1.1+ */
static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = {
&core_3xxx_es3_1_pwrdm,
&sgx_pwrdm,
&usbhost_pwrdm,
&dpll5_pwrdm,
NULL
};
static struct powerdomain *powerdomains_am35x[] __initdata = {
&wkup_omap2_pwrdm,
&mpu_am35x_pwrdm,
&neon_am35x_pwrdm,
&core_am35x_pwrdm,
&sgx_am35x_pwrdm,
&dss_am35x_pwrdm,
&per_am35x_pwrdm,
&emu_pwrdm,
&dpll1_pwrdm,
&dpll3_pwrdm,
&dpll4_pwrdm,
&dpll5_pwrdm,
NULL
};
static struct powerdomain *powerdomains_ti814x[] __initdata = {
&alwon_81xx_pwrdm,
&device_81xx_pwrdm,
&active_81xx_pwrdm,
&default_81xx_pwrdm,
&gem_814x_pwrdm,
&ivahd_814x_pwrdm,
&hdvpss_814x_pwrdm,
&sgx_814x_pwrdm,
&isp_814x_pwrdm,
NULL
};
static struct powerdomain *powerdomains_ti816x[] __initdata = {
&alwon_81xx_pwrdm,
&device_81xx_pwrdm,
&active_81xx_pwrdm,
&default_81xx_pwrdm,
&ivahd0_816x_pwrdm,
&ivahd1_816x_pwrdm,
&ivahd2_816x_pwrdm,
&sgx_816x_pwrdm,
NULL
};
/* TI81XX specific ops */
#define TI81XX_PM_PWSTCTRL 0x0000
#define TI81XX_RM_RSTCTRL 0x0010
#define TI81XX_PM_PWSTST 0x0004
static int ti81xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
{
omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK,
(pwrst << OMAP_POWERSTATE_SHIFT),
pwrdm->prcm_offs, TI81XX_PM_PWSTCTRL);
return 0;
}
static int ti81xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm)
{
return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
TI81XX_PM_PWSTCTRL,
OMAP_POWERSTATE_MASK);
}
static int ti81xx_pwrdm_read_pwrst(struct powerdomain *pwrdm)
{
return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
TI81XX_PM_PWSTST,
OMAP_POWERSTATEST_MASK);
}
static int ti81xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
{
return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
TI81XX_PM_PWSTST,
OMAP3430_LOGICSTATEST_MASK);
}
static int ti81xx_pwrdm_wait_transition(struct powerdomain *pwrdm)
{
u32 c = 0;
while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs,
(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
TI81XX_PM_PWSTST) &
OMAP_INTRANSITION_MASK) &&
(c++ < PWRDM_TRANSITION_BAILOUT))
udelay(1);
if (c > PWRDM_TRANSITION_BAILOUT) {
pr_err("powerdomain: %s timeout waiting for transition\n",
pwrdm->name);
return -EAGAIN;
}
pr_debug("powerdomain: completed transition in %d loops\n", c);
return 0;
}
/* For dm814x we need to fix up fix GFX pwstst and rstctrl reg offsets */
static struct pwrdm_ops ti81xx_pwrdm_operations = {
.pwrdm_set_next_pwrst = ti81xx_pwrdm_set_next_pwrst,
.pwrdm_read_next_pwrst = ti81xx_pwrdm_read_next_pwrst,
.pwrdm_read_pwrst = ti81xx_pwrdm_read_pwrst,
.pwrdm_read_logic_pwrst = ti81xx_pwrdm_read_logic_pwrst,
.pwrdm_wait_transition = ti81xx_pwrdm_wait_transition,
};
void __init omap3xxx_powerdomains_init(void)
{
unsigned int rev;
if (!cpu_is_omap34xx() && !cpu_is_ti81xx())
return;
/* Only 81xx needs custom pwrdm_operations */
if (!cpu_is_ti81xx())
pwrdm_register_platform_funcs(&omap3_pwrdm_operations);
rev = omap_rev();
if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) {
pwrdm_register_pwrdms(powerdomains_am35x);
} else if (rev == TI8148_REV_ES1_0 || rev == TI8148_REV_ES2_0 ||
rev == TI8148_REV_ES2_1) {
pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations);
pwrdm_register_pwrdms(powerdomains_ti814x);
} else if (rev == TI8168_REV_ES1_0 || rev == TI8168_REV_ES1_1
|| rev == TI8168_REV_ES2_0 || rev == TI8168_REV_ES2_1) {
pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations);
pwrdm_register_pwrdms(powerdomains_ti816x);
} else {
pwrdm_register_pwrdms(powerdomains_omap3430_common);
switch (rev) {
case OMAP3430_REV_ES1_0:
pwrdm_register_pwrdms(powerdomains_omap3430es1);
break;
case OMAP3430_REV_ES2_0:
case OMAP3430_REV_ES2_1:
case OMAP3430_REV_ES3_0:
case OMAP3630_REV_ES1_0:
pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
break;
case OMAP3430_REV_ES3_1:
case OMAP3430_REV_ES3_1_2:
case OMAP3630_REV_ES1_1:
case OMAP3630_REV_ES1_2:
pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
break;
default:
WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
}
}
pwrdm_complete_init();
}
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