+ /* AT91C_EFC_FCMD_EPA
+ * According to the datasheet FARG[15:2] defines the page from which
+ * the erase will start.This page must be modulo 4, 8, 16 or 32
+ * according to the number of pages to erase. FARG[1:0] defines the
+ * number of pages to be erased. Previously (firstpage << 2) was used
+ * to conform to this, seems it should not be shifted...
+ */