@@ -29,3 +29,12 @@
&uart0 {
status = "okay";
};
+
+&dramc {
+ dram_type = <0>;
+ channel_cnt = <2>;
+ rank_cnt = <2>;
+ rank_size = <0x0 0x0>;
+ mr_cnt = <1>;
+ mr = <0x5 0xff>;
+};
@@ -206,6 +206,24 @@
clock-names = "devapc-infra-clock";
};
+ dramc: dramc@10230000 {
+ compatible = "mediatek,mt6779-dramc";
+ reg = <0 0x10230000 0 0x2000>, /* DRAMC AO CHA */
+ <0 0x10240000 0 0x2000>, /* DRAMC AO CHB */
+ <0 0x10234000 0 0x1000>, /* DRAMC NAO CHA */
+ <0 0x10244000 0 0x1000>, /* DRAMC NAO CHB */
+ <0 0x10238000 0 0x2000>, /* DDRPHY AO CHA */
+ <0 0x10248000 0 0x2000>; /* DDRPHY AO CHB */
+ support_channel_cnt = <2>;
+ freq_cnt = <6>;
+ freq_step = <3718 3733>,
+ <3094 3200>,
+ <2392 2400>,
+ <1534 1600>,
+ <1196 1200>,
+ <754 800>;
+ };
+
uart0: serial@11002000 {
compatible = "mediatek,mt6779-uart",
"mediatek,mt6577-uart";
Add the DRAMC node for the DRAMC kernel driver. Properties are divided into three categories: - Platform DTS: MediaTek DRAMC platform common part. - Project DTS: Runtime filled in by bootloader according to the board hardware configuration. - Driver level: Hardware-specific register settings, encapsulated as compatible data for better DTS compatibility. Signed-off-by: Po-Kai Chi <pk.chi@mediatek.com> --- arch/arm64/boot/dts/mediatek/mt6779-evb.dts | 9 +++++++++ arch/arm64/boot/dts/mediatek/mt6779.dtsi | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+)