spi: fsl_qspi: Fix issues on arm64

The address value and size value get from dts "reg" property have
type of u64 on arm64. If we assign those values to "u32" variables,
driver can't work correctly. Converting the type of those variables
to fdt_xxx_t.

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>

drivers/spi/fsl_qspi.c

@@ -92,9 +92,9 @@ DECLARE_GLOBAL_DATA_PTR;
 struct fsl_qspi_platdata {
 	u32 flags;
 	u32 speed_hz;
-	u32 reg_base;
-	u32 amba_base;
-	u32 amba_total_size;
+	fdt_addr_t reg_base;
+	fdt_addr_t amba_base;
+	fdt_size_t amba_total_size;
 	u32 flash_num;
 	u32 num_chipselect;
 };
@@ -940,8 +940,13 @@ static int fsl_qspi_probe(struct udevice *bus)
 	priv->flags = plat->flags;
 
 	priv->speed_hz = plat->speed_hz;
-	priv->amba_base[0] = plat->amba_base;
-	priv->amba_total_size = plat->amba_total_size;
+	/*
+	 * QSPI SFADR width is 32bits, the max dest addr is 4GB-1.
+	 * AMBA memory zone should be located on the 0~4GB space
+	 * even on a 64bits cpu.
+	 */
+	priv->amba_base[0] = (u32)plat->amba_base;
+	priv->amba_total_size = (u32)plat->amba_total_size;
 	priv->flash_num = plat->flash_num;
 	priv->num_chipselect = plat->num_chipselect;
 
@@ -984,10 +989,7 @@ static int fsl_qspi_probe(struct udevice *bus)
 
 static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
 {
-	struct reg_data {
-		u32 addr;
-		u32 size;
-	} regs_data[2];
+	struct fdt_resource res_regs, res_mem;
 	struct fsl_qspi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
 	int node = bus->of_offset;
@@ -996,10 +998,16 @@ static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
 	if (fdtdec_get_bool(blob, node, "big-endian"))
 		plat->flags |= QSPI_FLAG_REGMAP_ENDIAN_BIG;
 
-	ret = fdtdec_get_int_array(blob, node, "reg", (u32 *)regs_data,
-				   sizeof(regs_data)/sizeof(u32));
+	ret = fdt_get_named_resource(blob, node, "reg", "reg-names",
+				     "QuadSPI", &res_regs);
+	if (ret) {
+		debug("Error: can't get regs base addresses(ret = %d)!\n", ret);
+		return -ENOMEM;
+	}
+	ret = fdt_get_named_resource(blob, node, "reg", "reg-names",
+				     "QuadSPI-memory", &res_mem);
 	if (ret) {
-		debug("Error: can't get base addresses (ret = %d)!\n", ret);
+		debug("Error: can't get AMBA base addresses(ret = %d)!\n", ret);
 		return -ENOMEM;
 	}
 
@@ -1017,16 +1025,16 @@ static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
 	plat->num_chipselect = fdtdec_get_int(blob, node, "num-cs",
 					      FSL_QSPI_MAX_CHIPSELECT_NUM);
 
-	plat->reg_base = regs_data[0].addr;
-	plat->amba_base = regs_data[1].addr;
-	plat->amba_total_size = regs_data[1].size;
+	plat->reg_base = res_regs.start;
+	plat->amba_base = res_mem.start;
+	plat->amba_total_size = res_mem.end - res_mem.start + 1;
 	plat->flash_num = flash_num;
 
-	debug("%s: regs=<0x%x> <0x%x, 0x%x>, max-frequency=%d, endianess=%s\n",
+	debug("%s: regs=<0x%llx> <0x%llx, 0x%llx>, max-frequency=%d, endianess=%s\n",
 	      __func__,
-	      plat->reg_base,
-	      plat->amba_base,
-	      plat->amba_total_size,
+	      (u64)plat->reg_base,
+	      (u64)plat->amba_base,
+	      (u64)plat->amba_total_size,
 	      plat->speed_hz,
 	      plat->flags & QSPI_FLAG_REGMAP_ENDIAN_BIG ? "be" : "le"
 	      );