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OMAP2/3: PRM: add module hard reset support

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This patch adds hard-reset support for processor modules (e.g., DSP, IVA)
on OMAP2/3 platforms.  It's based on the OMAP4 hard-reset support that Benoît
developed in the previous patch.

This patch is a collaboration between Benoît Cousson <b-cousson@ti.com>
and Paul Walmsley <paul@pwsan.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
This commit is contained in:
Paul Walmsley
2010-09-21 10:34:10 -06:00
parent 0be1621a74
commit cf21405fd5
3 changed files with 116 additions and 1 deletions
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5
arch/arm/mach-omap2/prm.h
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@@ -246,6 +246,11 @@ static inline u32 prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
return prm_rmw_mod_reg_bits(bits, 0x0, module, idx);
}
/* These omap2_ PRM functions apply to both OMAP2 and 3 */
int omap2_prm_is_hardreset_asserted(s16 prm_mod, u8 shift);
int omap2_prm_assert_hardreset(s16 prm_mod, u8 shift);
int omap2_prm_deassert_hardreset(s16 prm_mod, u8 shift);
int omap4_prm_is_hardreset_asserted(void __iomem *rstctrl_reg, u8 shift);
int omap4_prm_assert_hardreset(void __iomem *rstctrl_reg, u8 shift);
int omap4_prm_deassert_hardreset(void __iomem *rstctrl_reg, u8 shift);