ARM64: juno: add NOR flash to device tree

The Juno motherboard has a NOR flash on the motherboard, enable this to be accessed with the CFI flash driver. Results after enabling MTD, MTD_CFI, MTD_PHYSMAP, MTD_PHYSMAP_OF, MTD_CFI_INTELEXT: 8000000.flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000089 Chip ID 0x008919 Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Intel/Sharp Extended Query Table at 0x010A Using buffer write method Using auto-unlock on power-up/resume cfi_cmdset_0001: Erase suspend on write enabled erase region 0: offset=0x0,size=0x40000,blocks=255 erase region 1: offset=0x3fc0000,size=0x10000,blocks=4 Cc: Catalin Marinas <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Acked-by: Liviu Dudau <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
hanshu830 · Oct 15, 2015 · 5078f77 · 5078f77
1 parent e3d0558
commit 5078f77
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/arch/arm64/boot/dts/arm/juno-motherboard.dtsi b/arch/arm64/boot/dts/arm/juno-motherboard.dtsi
@@ -103,6 +103,14 @@
 				};
 			};
 
+			flash@0,00000000 {
+				/* 2 * 32MiB NOR Flash memory mounted on CS0 */
+				compatible = "arm,vexpress-flash", "cfi-flash";
+				linux,part-probe = "afs";
+				reg = <0 0x00000000 0x04000000>;
+				bank-width = <4>;
+			};
+
 			ethernet@2,00000000 {
 				compatible = "smsc,lan9118", "smsc,lan9115";
 				reg = <2 0x00000000 0x10000>;