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ARM: OMAP4: hwmod: flag hwmods/modules not supporting module level context status

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On OMAP4 most modules/hwmods support module level context status. On
OMAP3 and earlier, we relied on the power domain level context status.
Identify all modules that don't support 'context_offs' by adding a
flag bit, HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT.  Rest have a valid
'context_offs' populated in .prcm structure already.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
[paul@pwsan.com: add flag bit rather than overloading .context_offs;
 update changelog message]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Tero Kristo 2012-09-23 17:28:20 -06:00 committed by Paul Walmsley
parent ce80979aed
commit 46b3af2789
2 changed files with 57 additions and 1 deletions
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46
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View File

@ -204,6 +204,7 @@ static struct omap_hwmod omap44xx_l4_abe_hwmod = {
.clkctrl_offs = OMAP4_CM1_ABE_L4ABE_CLKCTRL_OFFSET,
.context_offs = OMAP4_RM_ABE_AESS_CONTEXT_OFFSET,
.lostcontext_mask = OMAP4430_LOSTMEM_AESSMEM_MASK,
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
@ -260,6 +261,11 @@ static struct omap_hwmod omap44xx_mpu_private_hwmod = {
.name = "mpu_private",
.class = &omap44xx_mpu_bus_hwmod_class,
.clkdm_name = "mpuss_clkdm",
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/*
@ -449,6 +455,11 @@ static struct omap_hwmod omap44xx_ctrl_module_core_hwmod = {
.class = &omap44xx_ctrl_module_hwmod_class,
.clkdm_name = "l4_cfg_clkdm",
.mpu_irqs = omap44xx_ctrl_module_core_irqs,
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/* ctrl_module_pad_core */
@ -456,6 +467,11 @@ static struct omap_hwmod omap44xx_ctrl_module_pad_core_hwmod = {
.name = "ctrl_module_pad_core",
.class = &omap44xx_ctrl_module_hwmod_class,
.clkdm_name = "l4_cfg_clkdm",
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/* ctrl_module_wkup */
@ -463,6 +479,11 @@ static struct omap_hwmod omap44xx_ctrl_module_wkup_hwmod = {
.name = "ctrl_module_wkup",
.class = &omap44xx_ctrl_module_hwmod_class,
.clkdm_name = "l4_wkup_clkdm",
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/* ctrl_module_pad_wkup */
@ -470,6 +491,11 @@ static struct omap_hwmod omap44xx_ctrl_module_pad_wkup_hwmod = {
.name = "ctrl_module_pad_wkup",
.class = &omap44xx_ctrl_module_hwmod_class,
.clkdm_name = "l4_wkup_clkdm",
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/*
@ -2539,18 +2565,33 @@ static struct omap_hwmod omap44xx_prcm_mpu_hwmod = {
.name = "prcm_mpu",
.class = &omap44xx_prcm_hwmod_class,
.clkdm_name = "l4_wkup_clkdm",
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/* cm_core_aon */
static struct omap_hwmod omap44xx_cm_core_aon_hwmod = {
.name = "cm_core_aon",
.class = &omap44xx_prcm_hwmod_class,
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/* cm_core */
static struct omap_hwmod omap44xx_cm_core_hwmod = {
.name = "cm_core",
.class = &omap44xx_prcm_hwmod_class,
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/* prm */
@ -2586,6 +2627,11 @@ static struct omap_hwmod omap44xx_scrm_hwmod = {
.name = "scrm",
.class = &omap44xx_scrm_hwmod_class,
.clkdm_name = "l4_wkup_clkdm",
.prcm = {
.omap4 = {
.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
},
},
};
/*

12
arch/arm/plat-omap/include/plat/omap_hwmod.h
View File

@ -2,7 +2,7 @@
* omap_hwmod macros, structures
*
* Copyright (C) 2009-2011 Nokia Corporation
* Copyright (C) 2011 Texas Instruments, Inc.
* Copyright (C) 2012 Texas Instruments, Inc.
* Paul Walmsley
*
* Created in collaboration with (alphabetical order): Benoît Cousson,
@ -384,6 +384,14 @@ struct omap_hwmod_omap2_prcm {
u8 idlest_stdby_bit;
};
/*
* Possible values for struct omap_hwmod_omap4_prcm.flags
*
* HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT: Some IP blocks don't have a PRCM
* module-level context loss register associated with them; this
* flag bit should be set in those cases
*/
#define HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT (1 << 0)
/**
* struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data
@ -392,6 +400,7 @@ struct omap_hwmod_omap2_prcm {
* @lostcontext_mask: bitmask for selecting bits from RM_*_CONTEXT register
* @rstst_reg: (AM33XX only) address of the XXX_RSTST register in the PRM
* @submodule_wkdep_bit: bit shift of the WKDEP range
* @flags: PRCM register capabilities for this IP block
*
* If @lostcontext_mask is not defined, context loss check code uses
* whole register without masking. @lostcontext_mask should only be
@ -406,6 +415,7 @@ struct omap_hwmod_omap4_prcm {
u32 lostcontext_mask;
u8 submodule_wkdep_bit;
u8 modulemode;
u8 flags;
};