For full SPL support, including DRAM initialisation, we need a few nodes from the DTS: this commit adds the DMC (DRAM controller) node, the service_msch (memory scheduler) node and marks GRF, PMUGRF and CRU as 'u-boot,dm-pre-reloc'. In addition to this, we also include the dt-binding for the DMC to allow DTS files including this DTSI to refer to the symbolic constants for the DDR3 bin and for the memory-schedule.
Note that the DMC contains both the memory regions for the (Designware) protocol controller as well as the DDR PHY.
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com
---
Changes in v3: None Changes in v2: - removes a 'u-boot,dm-pre-reloc' from dmc-node in rk3368.dtsi
arch/arm/dts/rk3368.dtsi | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/arch/arm/dts/rk3368.dtsi b/arch/arm/dts/rk3368.dtsi index 59c20da..0dad34d 100644 --- a/arch/arm/dts/rk3368.dtsi +++ b/arch/arm/dts/rk3368.dtsi @@ -46,6 +46,7 @@ #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/pinctrl/rockchip.h> #include <dt-bindings/thermal/thermal.h> +#include <dt-bindings/memory/rk3368-dmc.h>
/ { compatible = "rockchip,rk3368"; @@ -227,6 +228,22 @@ #clock-cells = <0>; };
+ dmc: dmc@ff610000 { + compatible = "rockchip,rk3368-dmc", "syscon"; + rockchip,cru = <&cru>; + rockchip,grf = <&grf>; + rockchip,msch = <&service_msch>; + reg = <0 0xff610000 0 0x400 + 0 0xff620000 0 0x400>; + }; + + service_msch: syscon@ffac0000 { + u-boot,dm-pre-reloc; + compatible = "rockchip,rk3368-msch", "syscon"; + reg = <0x0 0xffac0000 0x0 0x2000>; + status = "okay"; + }; + sdmmc: dwmmc@ff0c0000 { compatible = "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc"; reg = <0x0 0xff0c0000 0x0 0x4000>; @@ -546,12 +563,6 @@ status = "disabled"; };
- dmc: dmc@ff610000 { - u-boot,dm-pre-reloc; - compatible = "rockchip,rk3368-dmc", "syscon"; - reg = <0x0 0xff610000 0x0 0x1000>; - }; - i2c0: i2c@ff650000 { compatible = "rockchip,rk3368-i2c", "rockchip,rk3288-i2c"; reg = <0x0 0xff650000 0x0 0x1000>; @@ -658,6 +669,7 @@ };
cru: clock-controller@ff760000 { + u-boot,dm-pre-reloc; compatible = "rockchip,rk3368-cru"; reg = <0x0 0xff760000 0x0 0x1000>; rockchip,grf = <&grf>; @@ -666,6 +678,7 @@ };
grf: syscon@ff770000 { + u-boot,dm-pre-reloc; compatible = "rockchip,rk3368-grf", "syscon"; reg = <0x0 0xff770000 0x0 0x1000>; };