OMAP2/3: PRM: add module hard reset support

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>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index bc7e6e6099d5..7be040b2fdab 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -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);