 3f0ea7645a
			
		
	
	
	3f0ea7645a
	
	
	
		
			
			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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| 
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| #include <linux/kernel.h>
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| #include <linux/init.h>
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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