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![Vaibhav Hiremath](/assets/img/avatar_default.png)
Add offset & mask fields to struct powerdomain In case of AM33xx family of devices, there is no consistency between PWRSTCTRL & PWRSTST register offsers in PRM space, for example - PRM_XXX PWRSTCTRL PWRSTST ======================================= PRM_PER_MOD: 0x0C, 0x08 PRM_WKUP_MOD: 0x04, 0x08 PRM_MPU_MOD: 0x00, 0x04 PRM_DEVICE_MOD: NA, NA And also, there is no consistency between bit-offsets inside PWRSTCTRL & PWRSTST register, for example - PRM_XXX LOGICRET MEMON MEMRET ======================================= GFX_PWRCTRL: 2, 17, 6 PER_PWRCTRL: 3, 25, 29 MPU_PWRCTRL: 2, 18, 22 WKUP_PWRCTRL: 3, NA, NA This means, we need to maintain and pass on all this information in powerdomain handle; so adding fields for, - PWRSTCTRL/ST register offset - Logic retention state mask - mem_on/ret/pwrst/retst mask Currently, this fields is only applicable and used for AM33XX devices. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: this patch is a combination of "Add offset & mask fields to struct powerdomain" and the powerdomain portions of "ARM: OMAP3+: am33xx: Add powerdomain & PRM support"; updated for 3.5] Signed-off-by: Paul Walmsley <paul@pwsan.com>
185 lines
5.6 KiB
C
185 lines
5.6 KiB
C
/*
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* AM33XX Power domain data
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*
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* Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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 "powerdomain.h"
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#include "prcm-common.h"
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#include "prm-regbits-33xx.h"
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#include "prm33xx.h"
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static struct powerdomain gfx_33xx_pwrdm = {
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.name = "gfx_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM33XX_PRM_GFX_MOD,
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.pwrstctrl_offs = AM33XX_PM_GFX_PWRSTCTRL_OFFSET,
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.pwrstst_offs = AM33XX_PM_GFX_PWRSTST_OFFSET,
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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_LOWPOWERSTATECHANGE,
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.banks = 1,
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.logicretstate_mask = AM33XX_LOGICRETSTATE_MASK,
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.mem_on_mask = {
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[0] = AM33XX_GFX_MEM_ONSTATE_MASK, /* gfx_mem */
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},
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.mem_ret_mask = {
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[0] = AM33XX_GFX_MEM_RETSTATE_MASK, /* gfx_mem */
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},
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.mem_pwrst_mask = {
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[0] = AM33XX_GFX_MEM_STATEST_MASK, /* gfx_mem */
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},
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.mem_retst_mask = {
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[0] = AM33XX_GFX_MEM_RETSTATE_MASK, /* gfx_mem */
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},
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* gfx_mem */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* gfx_mem */
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},
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};
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static struct powerdomain rtc_33xx_pwrdm = {
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.name = "rtc_pwrdm",
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.voltdm = { .name = "rtc" },
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.prcm_offs = AM33XX_PRM_RTC_MOD,
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.pwrstctrl_offs = AM33XX_PM_RTC_PWRSTCTRL_OFFSET,
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.pwrstst_offs = AM33XX_PM_RTC_PWRSTST_OFFSET,
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.pwrsts = PWRSTS_ON,
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.logicretstate_mask = AM33XX_LOGICRETSTATE_MASK,
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};
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static struct powerdomain wkup_33xx_pwrdm = {
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.name = "wkup_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM33XX_PRM_WKUP_MOD,
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.pwrstctrl_offs = AM33XX_PM_WKUP_PWRSTCTRL_OFFSET,
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.pwrstst_offs = AM33XX_PM_WKUP_PWRSTST_OFFSET,
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.pwrsts = PWRSTS_ON,
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.logicretstate_mask = AM33XX_LOGICRETSTATE_3_3_MASK,
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};
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static struct powerdomain per_33xx_pwrdm = {
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.name = "per_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM33XX_PRM_PER_MOD,
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.pwrstctrl_offs = AM33XX_PM_PER_PWRSTCTRL_OFFSET,
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.pwrstst_offs = AM33XX_PM_PER_PWRSTST_OFFSET,
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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_LOWPOWERSTATECHANGE,
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.banks = 3,
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.logicretstate_mask = AM33XX_LOGICRETSTATE_3_3_MASK,
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.mem_on_mask = {
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[0] = AM33XX_PRUSS_MEM_ONSTATE_MASK, /* pruss_mem */
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[1] = AM33XX_PER_MEM_ONSTATE_MASK, /* per_mem */
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[2] = AM33XX_RAM_MEM_ONSTATE_MASK, /* ram_mem */
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},
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.mem_ret_mask = {
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[0] = AM33XX_PRUSS_MEM_RETSTATE_MASK, /* pruss_mem */
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[1] = AM33XX_PER_MEM_RETSTATE_MASK, /* per_mem */
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[2] = AM33XX_RAM_MEM_RETSTATE_MASK, /* ram_mem */
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},
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.mem_pwrst_mask = {
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[0] = AM33XX_PRUSS_MEM_STATEST_MASK, /* pruss_mem */
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[1] = AM33XX_PER_MEM_STATEST_MASK, /* per_mem */
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[2] = AM33XX_RAM_MEM_STATEST_MASK, /* ram_mem */
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},
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.mem_retst_mask = {
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[0] = AM33XX_PRUSS_MEM_RETSTATE_MASK, /* pruss_mem */
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[1] = AM33XX_PER_MEM_RETSTATE_MASK, /* per_mem */
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[2] = AM33XX_RAM_MEM_RETSTATE_MASK, /* ram_mem */
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},
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* pruss_mem */
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[1] = PWRSTS_OFF_RET, /* per_mem */
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[2] = PWRSTS_OFF_RET, /* ram_mem */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* pruss_mem */
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[1] = PWRSTS_ON, /* per_mem */
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[2] = PWRSTS_ON, /* ram_mem */
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},
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};
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static struct powerdomain mpu_33xx_pwrdm = {
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.name = "mpu_pwrdm",
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.voltdm = { .name = "mpu" },
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.prcm_offs = AM33XX_PRM_MPU_MOD,
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.pwrstctrl_offs = AM33XX_PM_MPU_PWRSTCTRL_OFFSET,
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.pwrstst_offs = AM33XX_PM_MPU_PWRSTST_OFFSET,
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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_LOWPOWERSTATECHANGE,
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.banks = 3,
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.logicretstate_mask = AM33XX_LOGICRETSTATE_MASK,
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.mem_on_mask = {
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[0] = AM33XX_MPU_L1_ONSTATE_MASK, /* mpu_l1 */
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[1] = AM33XX_MPU_L2_ONSTATE_MASK, /* mpu_l2 */
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[2] = AM33XX_MPU_RAM_ONSTATE_MASK, /* mpu_ram */
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},
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.mem_ret_mask = {
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[0] = AM33XX_MPU_L1_RETSTATE_MASK, /* mpu_l1 */
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[1] = AM33XX_MPU_L2_RETSTATE_MASK, /* mpu_l2 */
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[2] = AM33XX_MPU_RAM_RETSTATE_MASK, /* mpu_ram */
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},
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.mem_pwrst_mask = {
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[0] = AM33XX_MPU_L1_STATEST_MASK, /* mpu_l1 */
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[1] = AM33XX_MPU_L2_STATEST_MASK, /* mpu_l2 */
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[2] = AM33XX_MPU_RAM_STATEST_MASK, /* mpu_ram */
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},
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.mem_retst_mask = {
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[0] = AM33XX_MPU_L1_RETSTATE_MASK, /* mpu_l1 */
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[1] = AM33XX_MPU_L2_RETSTATE_MASK, /* mpu_l2 */
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[2] = AM33XX_MPU_RAM_RETSTATE_MASK, /* mpu_ram */
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},
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* mpu_l1 */
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[1] = PWRSTS_OFF_RET, /* mpu_l2 */
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[2] = PWRSTS_OFF_RET, /* mpu_ram */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* mpu_l1 */
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[1] = PWRSTS_ON, /* mpu_l2 */
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[2] = PWRSTS_ON, /* mpu_ram */
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},
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};
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static struct powerdomain cefuse_33xx_pwrdm = {
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.name = "cefuse_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM33XX_PRM_CEFUSE_MOD,
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.pwrstctrl_offs = AM33XX_PM_CEFUSE_PWRSTCTRL_OFFSET,
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.pwrstst_offs = AM33XX_PM_CEFUSE_PWRSTST_OFFSET,
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.pwrsts = PWRSTS_OFF_ON,
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};
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static struct powerdomain *powerdomains_am33xx[] __initdata = {
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&gfx_33xx_pwrdm,
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&rtc_33xx_pwrdm,
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&wkup_33xx_pwrdm,
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&per_33xx_pwrdm,
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&mpu_33xx_pwrdm,
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&cefuse_33xx_pwrdm,
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NULL,
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};
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void __init am33xx_powerdomains_init(void)
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{
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pwrdm_register_platform_funcs(&am33xx_pwrdm_operations);
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pwrdm_register_pwrdms(powerdomains_am33xx);
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pwrdm_complete_init();
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}
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