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authorTom Rini <trini@konsulko.com>2020-08-04 11:07:38 -0400
committerTom Rini <trini@konsulko.com>2020-08-04 11:07:38 -0400
commit4d23857abd1f31b32d9c130697a821556916aec9 (patch)
treee4e13165c6df05883fc740b98ed34d8be2d97208 /arch
parentbb3694d5b14c891032864dcd44ae261fe595bb0c (diff)
parented50d3fae49b9dad58674b6609913beeac824e42 (diff)
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Merge https://gitlab.denx.de/u-boot/custodians/u-boot-riscv
- add DM based reset driver for SiFive SoC's.
Diffstat (limited to 'arch')
-rw-r--r--arch/riscv/dts/fu540-c000-u-boot.dtsi12
-rw-r--r--arch/riscv/include/asm/arch-fu540/reset.h13
2 files changed, 25 insertions, 0 deletions
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@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@100b0000 {
compatible = "sifive,fu540-c000-ddr";
reg = <0x0 0x100b0000 0x0 0x0800
diff --git a/arch/riscv/include/asm/arch-fu540/reset.h b/arch/riscv/include/asm/arch-fu540/reset.h
new file mode 100644
index 0000000..e42797a
--- /dev/null
+++ b/arch/riscv/include/asm/arch-fu540/reset.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2020 SiFive, Inc.
+ *
+ * Author: Sagar Kadam <sagar.kadam@sifive.com>
+ */
+
+#ifndef __RESET_SIFIVE_H
+#define __RESET_SIFIVE_H
+
+int sifive_reset_bind(struct udevice *dev, ulong count);
+
+#endif