[PATCH v3 3/5] fu540: dtsi: add reset producer and consumer entries
Sagar Shrikant Kadam
sagar.kadam at sifive.com
Fri Jul 10 10:38:26 CEST 2020
The resets to DDR and ethernet sub-system are connected to
PRCI device reset control register, these reset signals
are active low and are held low at power-up. Add these reset
producer and consumer details needed by the reset driver.
Signed-off-by: Sagar Shrikant Kadam <sagar.kadam at sifive.com>
---
arch/riscv/dts/fu540-c000-u-boot.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/riscv/dts/fu540-c000-u-boot.dtsi b/arch/riscv/dts/fu540-c000-u-boot.dtsi
index afdb4f4..5302677 100644
--- a/arch/riscv/dts/fu540-c000-u-boot.dtsi
+++ b/arch/riscv/dts/fu540-c000-u-boot.dtsi
@@ -3,6 +3,8 @@
* (C) Copyright 2019 SiFive, Inc
*/
+#include <dt-bindings/reset/sifive-fu540-prci.h>
+
/ {
cpus {
assigned-clocks = <&prci PRCI_CLK_COREPLL>;
@@ -59,6 +61,16 @@
reg = <0x0 0x2000000 0x0 0xc0000>;
u-boot,dm-spl;
};
+ prci: clock-controller at 10000000 {
+ #reset-cells = <1>;
+ resets = <&prci PRCI_RST_DDR_CTRL_N>,
+ <&prci PRCI_RST_DDR_AXI_N>,
+ <&prci PRCI_RST_DDR_AHB_N>,
+ <&prci PRCI_RST_DDR_PHY_N>,
+ <&prci PRCI_RST_GEMGXL_N>;
+ reset-names = "ddr_ctrl", "ddr_axi", "ddr_ahb",
+ "ddr_phy", "gemgxl_reset";
+ };
dmc: dmc at 100b0000 {
compatible = "sifive,fu540-c000-ddr";
reg = <0x0 0x100b0000 0x0 0x0800
--
2.7.4
More information about the U-Boot
mailing list