rockchip: rk3308: Generate ethaddr based on cpu id
Like other Rockchip SoCs the RK3308 has cpu id programmed into OTP
memory. The rockchip_otp driver already support the RK3308 variant.
However, the device tree is missing a node to enable use of OTP.
Add the missing otp node to soc u-boot.dtsi, enable the rockchip_otp
driver and enable use of misc_init_r() to set ethaddr based on cpu id.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3308-u-boot.dtsi b/arch/arm/dts/rk3308-u-boot.dtsi
index db2c20a..436f66d 100644
--- a/arch/arm/dts/rk3308-u-boot.dtsi
+++ b/arch/arm/dts/rk3308-u-boot.dtsi
@@ -10,6 +10,22 @@
mmc0 = &emmc;
mmc1 = &sdmmc;
};
+
+ otp: nvmem@ff210000 {
+ compatible = "rockchip,rk3308-otp";
+ reg = <0x0 0xff210000 0x0 0x4000>;
+ clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>,
+ <&cru PCLK_OTP_PHY>;
+ clock-names = "otp", "apb_pclk", "phy";
+ resets = <&cru SRST_OTP_PHY>;
+ reset-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpu_id: id@7 {
+ reg = <0x07 0x10>;
+ };
+ };
};
&cru {
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 0902eb28..2707d3f 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -163,7 +163,10 @@
imply ARMV8_CRYPTO
imply ARMV8_SET_SMPEN
imply LEGACY_IMAGE_FORMAT
+ imply MISC
+ imply MISC_INIT_R
imply ROCKCHIP_COMMON_BOARD
+ imply ROCKCHIP_OTP
imply SPL_CLK
imply SPL_FIT_SIGNATURE
imply SPL_RAM