From 46b3af27894a3b414712bef313c4aacb605fccf7 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Sun, 23 Sep 2012 17:28:20 -0600 Subject: [PATCH] ARM: OMAP4: hwmod: flag hwmods/modules not supporting module level context status 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 [paul@pwsan.com: add flag bit rather than overloading .context_offs; update changelog message] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 46 ++++++++++++++++++++ arch/arm/plat-omap/include/plat/omap_hwmod.h | 12 ++++- 2 files changed, 57 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index d3f045bf810a..0d9f1fe0534e 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -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, + }, + }, }; /* diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 86b6a4e70824..09e14ce3ec57 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -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; };