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 <catalin.marinas@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm64/boot/dts/arm/juno-motherboard.dtsi b/arch/arm64/boot/dts/arm/juno-motherboard.dtsi
index 637e046f0e367dd23fbe391dc1542dd97a315504..c7c99a42e2e997684449482535965a0570598044 100644 (file)
--- 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>;