322 lines
7.9 KiB
C
322 lines
7.9 KiB
C
/*
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* OMAP3 powerdomain definitions
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*
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* Copyright (C) 2007-2008, 2011 Texas Instruments, Inc.
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* Copyright (C) 2007-2011 Nokia Corporation
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*
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* Paul Walmsley, Jouni Högander
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/bug.h>
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#include <plat/cpu.h>
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#include "powerdomain.h"
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#include "powerdomains2xxx_3xxx_data.h"
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#include "prcm-common.h"
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#include "prm2xxx_3xxx.h"
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#include "prm-regbits-34xx.h"
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#include "cm2xxx_3xxx.h"
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#include "cm-regbits-34xx.h"
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/*
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* 34XX-specific powerdomains, dependencies
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*/
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/*
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* Powerdomains
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*/
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static struct powerdomain iva2_pwrdm = {
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.name = "iva2_pwrdm",
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.prcm_offs = OMAP3430_IVA2_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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.banks = 4,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET,
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[1] = PWRSTS_OFF_RET,
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[2] = PWRSTS_OFF_RET,
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[3] = PWRSTS_OFF_RET,
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON,
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[1] = PWRSTS_ON,
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[2] = PWRSTS_OFF_ON,
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[3] = PWRSTS_ON,
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},
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.voltdm = { .name = "mpu_iva" },
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};
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static struct powerdomain mpu_3xxx_pwrdm = {
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.name = "mpu_pwrdm",
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.prcm_offs = MPU_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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.flags = PWRDM_HAS_MPU_QUIRK,
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET,
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_OFF_ON,
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},
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.voltdm = { .name = "mpu_iva" },
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};
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/*
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* The USBTLL Save-and-Restore mechanism is broken on
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* 3430s up to ES3.0 and 3630ES1.0. Hence this feature
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* needs to be disabled on these chips.
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* Refer: 3430 errata ID i459 and 3630 errata ID i579
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*
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* Note: setting the SAR flag could help for errata ID i478
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* which applies to 3430 <= ES3.1, but since the SAR feature
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* is broken, do not use it.
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*/
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static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
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.name = "core_pwrdm",
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.prcm_offs = CORE_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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.banks = 2,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
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[1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
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[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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static struct powerdomain core_3xxx_es3_1_pwrdm = {
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.name = "core_pwrdm",
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.prcm_offs = CORE_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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/*
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* Setting the SAR flag for errata ID i478 which applies
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* to 3430 <= ES3.1
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*/
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.flags = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
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.banks = 2,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
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[1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
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[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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static struct powerdomain dss_pwrdm = {
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.name = "dss_pwrdm",
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.prcm_offs = OMAP3430_DSS_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_RET,
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_RET, /* MEMRETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* MEMONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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/*
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* Although the 34XX TRM Rev K Table 4-371 notes that retention is a
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* possible SGX powerstate, the SGX device itself does not support
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* retention.
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*/
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static struct powerdomain sgx_pwrdm = {
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.name = "sgx_pwrdm",
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.prcm_offs = OMAP3430ES2_SGX_MOD,
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/* XXX This is accurate for 3430 SGX, but what about GFX? */
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.pwrsts = PWRSTS_OFF_ON,
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.pwrsts_logic_ret = PWRSTS_RET,
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_RET, /* MEMRETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* MEMONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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static struct powerdomain cam_pwrdm = {
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.name = "cam_pwrdm",
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.prcm_offs = OMAP3430_CAM_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_RET,
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_RET, /* MEMRETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* MEMONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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static struct powerdomain per_pwrdm = {
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.name = "per_pwrdm",
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.prcm_offs = OMAP3430_PER_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_RET, /* MEMRETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* MEMONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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static struct powerdomain emu_pwrdm = {
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.name = "emu_pwrdm",
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.prcm_offs = OMAP3430_EMU_MOD,
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.voltdm = { .name = "core" },
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};
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static struct powerdomain neon_pwrdm = {
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.name = "neon_pwrdm",
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.prcm_offs = OMAP3430_NEON_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_RET,
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.voltdm = { .name = "mpu_iva" },
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};
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static struct powerdomain usbhost_pwrdm = {
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.name = "usbhost_pwrdm",
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.prcm_offs = OMAP3430ES2_USBHOST_MOD,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_RET,
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/*
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* REVISIT: Enabling usb host save and restore mechanism seems to
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* leave the usb host domain permanently in ACTIVE mode after
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* changing the usb host power domain state from OFF to active once.
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* Disabling for now.
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*/
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/*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_RET, /* MEMRETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* MEMONSTATE */
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},
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.voltdm = { .name = "core" },
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};
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static struct powerdomain dpll1_pwrdm = {
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.name = "dpll1_pwrdm",
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.prcm_offs = MPU_MOD,
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.voltdm = { .name = "mpu_iva" },
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};
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static struct powerdomain dpll2_pwrdm = {
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.name = "dpll2_pwrdm",
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.prcm_offs = OMAP3430_IVA2_MOD,
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.voltdm = { .name = "mpu_iva" },
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};
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static struct powerdomain dpll3_pwrdm = {
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.name = "dpll3_pwrdm",
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.prcm_offs = PLL_MOD,
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.voltdm = { .name = "core" },
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};
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static struct powerdomain dpll4_pwrdm = {
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.name = "dpll4_pwrdm",
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.prcm_offs = PLL_MOD,
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.voltdm = { .name = "core" },
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};
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static struct powerdomain dpll5_pwrdm = {
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.name = "dpll5_pwrdm",
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.prcm_offs = PLL_MOD,
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.voltdm = { .name = "core" },
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};
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/* As powerdomains are added or removed above, this list must also be changed */
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static struct powerdomain *powerdomains_omap3430_common[] __initdata = {
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&wkup_omap2_pwrdm,
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&iva2_pwrdm,
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&mpu_3xxx_pwrdm,
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&neon_pwrdm,
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&cam_pwrdm,
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&dss_pwrdm,
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&per_pwrdm,
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&emu_pwrdm,
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&dpll1_pwrdm,
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&dpll2_pwrdm,
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&dpll3_pwrdm,
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&dpll4_pwrdm,
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NULL
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};
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static struct powerdomain *powerdomains_omap3430es1[] __initdata = {
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&gfx_omap2_pwrdm,
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&core_3xxx_pre_es3_1_pwrdm,
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NULL
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};
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/* also includes 3630ES1.0 */
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static struct powerdomain *powerdomains_omap3430es2_es3_0[] __initdata = {
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&core_3xxx_pre_es3_1_pwrdm,
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&sgx_pwrdm,
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&usbhost_pwrdm,
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&dpll5_pwrdm,
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NULL
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};
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/* also includes 3630ES1.1+ */
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static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = {
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&core_3xxx_es3_1_pwrdm,
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&sgx_pwrdm,
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&usbhost_pwrdm,
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&dpll5_pwrdm,
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NULL
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};
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void __init omap3xxx_powerdomains_init(void)
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{
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unsigned int rev;
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if (!cpu_is_omap34xx())
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return;
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pwrdm_register_platform_funcs(&omap3_pwrdm_operations);
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pwrdm_register_pwrdms(powerdomains_omap3430_common);
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rev = omap_rev();
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if (rev == OMAP3430_REV_ES1_0)
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pwrdm_register_pwrdms(powerdomains_omap3430es1);
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else if (rev == OMAP3430_REV_ES2_0 || rev == OMAP3430_REV_ES2_1 ||
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rev == OMAP3430_REV_ES3_0 || rev == OMAP3630_REV_ES1_0)
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pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
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else if (rev == OMAP3430_REV_ES3_1 || rev == OMAP3430_REV_ES3_1_2 ||
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rev == OMAP3517_REV_ES1_0 || rev == OMAP3517_REV_ES1_1 ||
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rev == OMAP3630_REV_ES1_1 || rev == OMAP3630_REV_ES1_2)
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pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
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else
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WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
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pwrdm_complete_init();
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}
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