+/*
+ * Read and write ptds. 'ptd_offset' should be one of ISO_PTD_OFFSET,
+ * INT_PTD_OFFSET, and ATL_PTD_OFFSET. 'slot' should be less than 32.
+ */
+static void ptd_read(void __iomem *base, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
+{
+ reg_write32(base, HC_MEMORY_REG,
+ ISP_BANK(0) + ptd_offset + slot*sizeof(*ptd));
+ ndelay(90);
+ bank_reads8(base, ptd_offset + slot*sizeof(*ptd), ISP_BANK(0),
+ (void *) ptd, sizeof(*ptd));
+}
+
+static void ptd_write(void __iomem *base, u32 ptd_offset, u32 slot,
+ struct ptd *ptd)
+{
+ mem_writes8(base, ptd_offset + slot*sizeof(*ptd) + sizeof(ptd->dw0),
+ &ptd->dw1, 7*sizeof(ptd->dw1));
+ /* Make sure dw0 gets written last (after other dw's and after payload)
+ since it contains the enable bit */
+ wmb();
+ mem_writes8(base, ptd_offset + slot*sizeof(*ptd), &ptd->dw0,
+ sizeof(ptd->dw0));
+}
+
+