sunxi_nand_spl: Add proper cache flusing
[karo-tx-uboot.git] / drivers / mtd / nand / sunxi_nand_spl.c
index 147d476..663c03e 100644 (file)
@@ -266,6 +266,10 @@ static void nand_read_page(unsigned int real_addr, dma_addr_t dst,
                writel(oob_offset, SUNXI_NFC_BASE + NFC_SPARE_AREA);
        }
 
+       flush_dcache_range(dst,
+                          ALIGN(dst + CONFIG_NAND_SUNXI_SPL_ECC_PAGE_SIZE,
+                                ARCH_DMA_MINALIGN));
+
        /* SUNXI_DMA */
        writel(0x0, SUNXI_DMA_BASE + SUNXI_DMA_CFG_REG0); /* clr dma cmd */
        /* read from REG_IO_DATA */
@@ -311,6 +315,10 @@ static void nand_read_page(unsigned int real_addr, dma_addr_t dst,
                return;
        }
 
+       invalidate_dcache_range(dst,
+                       ALIGN(dst + CONFIG_NAND_SUNXI_SPL_ECC_PAGE_SIZE,
+                             ARCH_DMA_MINALIGN));
+
        if (readl(SUNXI_NFC_BASE + NFC_ECC_ST))
                (*ecc_errors)++;
 }