Merge https://gitlab.denx.de/u-boot/custodians/u-boot-cfi-flash

- Fix devicetree address determination seen on QEMU ARM64
- Use DMA for reads is available

drivers/dma/dma-uclass.c

@@ -219,8 +219,8 @@ int dma_get_device(u32 transfer_type, struct udevice **devp)
 	}
 
 	if (!dev) {
-		pr_err("No DMA device found that supports %x type\n",
-		      transfer_type);
+		pr_debug("No DMA device found that supports %x type\n",
+			 transfer_type);
 		return -EPROTONOSUPPORT;
 	}
 

drivers/mtd/cfi_flash.c

@@ -2468,29 +2468,17 @@ unsigned long flash_init(void)
 #ifdef CONFIG_CFI_FLASH /* for driver model */
 static int cfi_flash_probe(struct udevice *dev)
 {
-	const fdt32_t *cell;
-	int addrc, sizec;
-	int len, idx;
+	fdt_addr_t addr;
+	int idx;
 
-	addrc = dev_read_addr_cells(dev);
-	sizec = dev_read_size_cells(dev);
-
-	/* decode regs; there may be multiple reg tuples. */
-	cell = dev_read_prop(dev, "reg", &len);
-	if (!cell)
-		return -ENOENT;
-	idx = 0;
-	len /= sizeof(fdt32_t);
-	while (idx < len) {
-		phys_addr_t addr;
-
-		addr = dev_translate_address(dev, cell + idx);
+	for (idx = 0; idx < CFI_MAX_FLASH_BANKS; idx++) {
+		addr = dev_read_addr_index(dev, idx);
+		if (addr == FDT_ADDR_T_NONE)
+			break;
 
 		flash_info[cfi_flash_num_flash_banks].dev = dev;
 		flash_info[cfi_flash_num_flash_banks].base = addr;
 		cfi_flash_num_flash_banks++;
-
-		idx += addrc + sizec;
 	}
 	gd->bd->bi_flashstart = flash_info[0].base;
 

drivers/mtd/cfi_mtd.c

@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <flash.h>
 #include <malloc.h>
 
@@ -70,7 +71,8 @@ static int cfi_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
 	flash_info_t *fi = mtd->priv;
 	u_char *f = (u_char*)(fi->start[0]) + from;
 
-	memcpy(buf, f, len);
+	if (dma_memcpy(buf, f, len) < 0)
+		memcpy(buf, f, len);
 	*retlen = len;
 
 	return 0;