From 46b3af27894a3b414712bef313c4aacb605fccf7 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Sun, 23 Sep 2012 17:28:20 -0600 Subject: 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/plat-omap/include/plat/omap_hwmod.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'arch/arm/plat-omap') diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 86b6a4e7082..09e14ce3ec5 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; }; -- cgit v1.2.3-18-g5258