SHA_REG_CTRL
omap_sham_write_mask(dd, SHA_REG_CTRL, 0, SHA_REG_CTRL_LENGTH);
omap_sham_write_mask(dd, SHA_REG_CTRL, SHA_REG_CTRL_OUTPUT_READY,
omap_sham_read(dd, SHA_REG_CTRL);
omap_sham_write_mask(dd, SHA_REG_CTRL, val, mask);
return omap_sham_wait(dd, SHA_REG_CTRL, SHA_REG_CTRL_INPUT_READY);