@@ -216,6 +216,30 @@ u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
return v;
}
+/* Read a PRM register, AND it, and shift the result down to bit 0 */
+u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask)
+{
+ u32 v;
+
+ v = __raw_readl(reg);
+ v &= mask;
+ v >>= __ffs(mask);
+
+ return v;
+}
+
+/* Read-modify-write a register in a PRM module. Caller must lock */
+u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg)
+{
+ u32 v;
+
+ v = __raw_readl(reg);
+ v &= ~mask;
+ v |= bits;
+ __raw_writel(v, reg);
+
+ return v;
+}
/* Read a register in a CM module */
u32 cm_read_mod_reg(s16 module, u16 idx)
{
@@ -38,6 +38,8 @@ u32 prm_read_mod_reg(s16 module, u16 idx);
void prm_write_mod_reg(u32 val, s16 module, u16 idx);
u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask);
+u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask);
+u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg);
u32 cm_read_mod_reg(s16 module, u16 idx);
void cm_write_mod_reg(u32 val, s16 module, u16 idx);
u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);