RE: [RFC PATCH 4/4] ARM: at91/dt: sama5d2: add nand0 and nfc0 nodes
From: Yang, Wenyou <hidden>
Date: 2016-01-13 06:06:16
quoted hunk
-----Original Message----- From: linux-mtd [mailto:linux-mtd-bounces@lists.infradead.org] On Behalf Of Romain Izard Sent: 2016年1月12日 22:34 To: linux-mtd@lists.infradead.org; devicetree@vger.kernel.org Cc: Wu, Josh <redacted>; Romain Izard [off-list ref]; Ferre, Nicolas [off-list ref] Subject: [RFC PATCH 4/4] ARM: at91/dt: sama5d2: add nand0 and nfc0 nodes Both nodes are required to access NAND Flash memory. Additional settings will be necessary at the board level to use it. Signed-off-by: Romain Izard <redacted> --- arch/arm/boot/dts/sama5d2.dtsi | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+)diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi indexaee571448342..80420177ec1a 100644--- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi@@ -265,6 +265,44 @@ cache-level = <2>; }; + nand0: nand@80000000 { + compatible = "atmel,sama5d2-nand"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + reg = < /* EBI CS3 */ + 0x80000000 0x08000000 + /* SMC PMECC regs */ + 0xf8014070 0x00000490 + /* SMC PMECC Error Location regs */ + 0xf8014500 0x00000200 + /* ROM Galois tables */ + 0x00040000 0x00018000
As there is no PMECC lookup table in ROM exported, remove this line.
+ >; + interrupts = <17 IRQ_TYPE_LEVEL_HIGH 6>; + atmel,nand-addr-offset = <21>; + atmel,nand-cmd-offset = <22>; + atmel,nand-has-dma; + atmel,has-pmecc; + atmel,pmecc-lookup-table-offset = <0x0 0x8000>;
Ditto, remove this line.
+ status = "disabled";
+
+ nfc@90000000 {
+ compatible = "atmel,sama5d4-nfc";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = < /* NFC Command Registers */
+ 0xC0000000 0x08000000
+ /* NFC HSMC regs */
+ 0xf8014000 0x00000070
+ /* NFC SRAM banks */
+ 0x00100000 0x00100000
+ >;
+ clocks = <&hsmc_clk>;
+ atmel,write-by-sram;
+ };
+ };
+
sdmmc0: sdio-host@a0000000 {
compatible = "atmel,sama5d2-sdhci";
reg = <0xa0000000 0x300>;
--
2.5.0
Best Regards,
Wenyou Yang
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