ARM: OMAP2: Powerdomain: Add OMAP2/3 common powerdomains
Add powerdomains common to both OMAP2 and OMAP3 (WKUP and GFX/SGX). Modify mach-omap2/io.c to initialize the powerdomain code on boot. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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Paul Walmsley
Tony Lindgren
parent
ad67ef6848
commit
9717100f77
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@ -24,6 +24,10 @@
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#include <mach/mux.h>
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#include <mach/omapfb.h>
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#include <mach/powerdomain.h>
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#include "powerdomains.h"
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extern void omap_sram_init(void);
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extern int omap2_clk_init(void);
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extern void omap2_check_revision(void);
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@ -101,6 +105,7 @@ void __init omap2_map_common_io(void)
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void __init omap2_init_common_hw(void)
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{
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omap2_mux_init();
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pwrdm_init(powerdomains_omap);
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omap2_clk_init();
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/*
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* Need to Fix this for 2430
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@ -0,0 +1,147 @@
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/*
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* OMAP2/3 common powerdomain definitions
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*
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* Copyright (C) 2007-8 Texas Instruments, Inc.
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* Copyright (C) 2007-8 Nokia Corporation
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*
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* Written by Paul Walmsley
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* Debugging and integration fixes by 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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#ifndef ARCH_ARM_MACH_OMAP2_POWERDOMAINS
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#define ARCH_ARM_MACH_OMAP2_POWERDOMAINS
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/*
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* This file contains all of the powerdomains that have some element
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* of software control for the OMAP24xx and OMAP34XX chips.
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*
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* A few notes:
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*
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* This is not an exhaustive listing of powerdomains on the chips; only
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* powerdomains that can be controlled in software.
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*
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* A useful validation rule for struct powerdomain:
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* Any powerdomain referenced by a wkdep_srcs or sleepdep_srcs array
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* must have a dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really
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* just software-controllable dependencies. Non-software-controllable
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* dependencies do exist, but they are not encoded below (yet).
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*
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* 24xx does not support programmable sleep dependencies (SLEEPDEP)
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*
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*/
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/*
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* The names for the DSP/IVA2 powerdomains are confusing.
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*
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* Most OMAP chips have an on-board DSP.
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*
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* On the 2420, this is a 'C55 DSP called, simply, the DSP. Its
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* powerdomain is called the "DSP power domain." On the 2430, the
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* on-board DSP is a 'C64 DSP, now called the IVA2 or IVA2.1. Its
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* powerdomain is still called the "DSP power domain." On the 3430,
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* the DSP is a 'C64 DSP like the 2430, also known as the IVA2; but
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* its powerdomain is now called the "IVA2 power domain."
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*
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* The 2420 also has something called the IVA, which is a separate ARM
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* core, and has nothing to do with the DSP/IVA2.
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*
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* Ideally the DSP/IVA2 could just be the same powerdomain, but the PRCM
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* address offset is different between the C55 and C64 DSPs.
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*
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* The overly-specific dep_bit names are due to a bit name collision
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* with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
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* value are the same for all powerdomains: 2
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*/
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/*
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* XXX should dep_bit be a mask, so we can test to see if it is 0 as a
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* sanity check?
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* XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
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*/
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#include <mach/powerdomain.h>
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#include "prcm-common.h"
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#include "prm.h"
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#include "cm.h"
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/* OMAP2/3-common powerdomains and wakeup dependencies */
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/*
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* 2420/2430 PM_WKDEP_GFX: CORE, MPU, WKUP
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* 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
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* 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
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*/
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static struct pwrdm_dep gfx_sgx_wkdeps[] = {
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{
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.pwrdm_name = "core_pwrdm",
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.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
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},
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{
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.pwrdm_name = "iva2_pwrdm",
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.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
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},
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{
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.pwrdm_name = "mpu_pwrdm",
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.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
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CHIP_IS_OMAP3430)
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},
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{
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.pwrdm_name = "wkup_pwrdm",
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.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
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CHIP_IS_OMAP3430)
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},
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{ NULL },
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};
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/*
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* OMAP2/3 common powerdomains
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*/
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/* XXX add sleepdeps for this powerdomain : 3430 */
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/*
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* The GFX powerdomain is not present on 3430ES2, but currently we do not
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* have a macro to filter it out at compile-time.
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*/
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static struct powerdomain gfx_pwrdm = {
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.name = "gfx_pwrdm",
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.prcm_offs = GFX_MOD,
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.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
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CHIP_IS_OMAP3430ES1),
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.wkdep_srcs = gfx_sgx_wkdeps,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRDM_POWER_RET,
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.banks = 1,
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.pwrsts_mem_ret = {
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[0] = PWRDM_POWER_RET, /* MEMRETSTATE */
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},
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.pwrsts_mem_on = {
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[0] = PWRDM_POWER_ON, /* MEMONSTATE */
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},
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};
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static struct powerdomain wkup_pwrdm = {
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.name = "wkup_pwrdm",
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.prcm_offs = WKUP_MOD,
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.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
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.dep_bit = OMAP_EN_WKUP_SHIFT,
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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_omap[] __initdata = {
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&gfx_pwrdm,
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&wkup_pwrdm,
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NULL
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};
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#endif
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@ -305,7 +305,8 @@ static inline u32 prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
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* 3430: PM_WKDEP_IVA2, PM_WKDEP_GFX, PM_WKDEP_DSS, PM_WKDEP_CAM,
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* PM_WKDEP_PER
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*/
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#define OMAP_EN_WKUP (1 << 4)
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#define OMAP_EN_WKUP_SHIFT 4
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#define OMAP_EN_WKUP_MASK (1 << 4)
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/*
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* 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
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