omap_sham_read
omap_sham_read(dd, SHA_REG_CTRL);
rev = omap_sham_read(dd, SHA_REG_REV(dd));
val = omap_sham_read(dd, address);
while (!(omap_sham_read(dd, offset) & bit)) {
hash[i] = omap_sham_read(dd, SHA_REG_IDIGEST(dd, i));
opad[i] = omap_sham_read(dd,