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| author | Rajendra Nayak <rnayak@ti.com> | 2010-10-08 10:23:22 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-10-08 10:23:22 -0700 |
| commit | cc7a1d2a540a780066aa562c651a88dd28b6fc8a (patch) | |
| tree | bd9fba3d4d4ccb2a0277b383c190d1c898440961 /arch/arm/plat-omap | |
| parent | c710e19222794f45f2376ba6f00dc675dc4279d6 (diff) | |
| download | blackbird-op-linux-cc7a1d2a540a780066aa562c651a88dd28b6fc8a.tar.gz blackbird-op-linux-cc7a1d2a540a780066aa562c651a88dd28b6fc8a.zip | |
omap: hwmod: Handle modules with 16bit registers
Some modules which have 16bit registers can cause imprecise
aborts if a __raw_readl/writel is used to read/write 32 bits.
Add an additional flag to identify modules which have such
hard requirement, and handle it in the hwmod framework.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap_hwmod.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index c1835afc238d..7eaa8edf3b14 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -370,6 +370,7 @@ struct omap_hwmod_omap4_prcm { * This is needed for devices like DSS that require optional clocks enabled * in order to complete the reset. Optional clocks will be disabled * again after the reset. + * HWMOD_16BIT_REG: Module has 16bit registers */ #define HWMOD_SWSUP_SIDLE (1 << 0) #define HWMOD_SWSUP_MSTANDBY (1 << 1) @@ -379,6 +380,7 @@ struct omap_hwmod_omap4_prcm { #define HWMOD_SET_DEFAULT_CLOCKACT (1 << 5) #define HWMOD_NO_IDLEST (1 << 6) #define HWMOD_CONTROL_OPT_CLKS_IN_RESET (1 << 7) +#define HWMOD_16BIT_REG (1 << 8) /* * omap_hwmod._int_flags definitions @@ -527,8 +529,8 @@ int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode); int omap_hwmod_reset(struct omap_hwmod *oh); void omap_hwmod_ocp_barrier(struct omap_hwmod *oh); -void omap_hwmod_writel(u32 v, struct omap_hwmod *oh, u16 reg_offs); -u32 omap_hwmod_readl(struct omap_hwmod *oh, u16 reg_offs); +void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs); +u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs); int omap_hwmod_count_resources(struct omap_hwmod *oh); int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res); |
