diff options
Diffstat (limited to 'package/boot/uboot-sifiveu/patches/0008-riscv-dts-Add-few-PMU-events.patch')
| -rw-r--r-- | package/boot/uboot-sifiveu/patches/0008-riscv-dts-Add-few-PMU-events.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/package/boot/uboot-sifiveu/patches/0008-riscv-dts-Add-few-PMU-events.patch b/package/boot/uboot-sifiveu/patches/0008-riscv-dts-Add-few-PMU-events.patch new file mode 100644 index 00000000000..3f3feb9da70 --- /dev/null +++ b/package/boot/uboot-sifiveu/patches/0008-riscv-dts-Add-few-PMU-events.patch @@ -0,0 +1,36 @@ +From c29e4d84cfa17ab96eff2a9044f486ba3c8b5c43 Mon Sep 17 00:00:00 2001 +From: Atish Patra <atish.patra@wdc.com> +Date: Mon, 25 Oct 2021 11:35:41 -0700 +Subject: [PATCH] riscv: dts: Add few PMU events + +fu740 has 2 HPM counters and many HPM events defined in the fu740 manual[1]. +This patch adds some of these events and their mapping as per the +OpenSBI PMU DT binding for now. + +[1]https://sifive.cdn.prismic.io/sifive/de1491e5-077c-461d-9605-e8a0ce57337d_fu740-c000-manual-v1p3.pdf + +Signed-off-by: Atish Patra <atish.patra@wdc.com> +--- + arch/riscv/dts/fu740-c000.dtsi | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +--- a/arch/riscv/dts/fu740-c000.dtsi ++++ b/arch/riscv/dts/fu740-c000.dtsi +@@ -140,6 +140,17 @@ + #size-cells = <2>; + compatible = "simple-bus"; + ranges; ++ pmu { ++ compatible = "riscv,pmu"; ++ riscv,raw-event-to-mhpmcounters = <0x00000000 0x200 0x18 ++ 0x00000000 0x400 0x18 ++ 0x00000000 0x800 0x18>; ++ riscv,event-to-mhpmcounters = <0x05 0x06 0x18 ++ 0x10009 0x10009 0x18>; ++ riscv,event-to-mhpmevent = <0x05 0x00000000 0x4000 ++ 0x06 0x00000000 0x4001 ++ 0x10008 0x00000000 0x102>; ++ }; + plic0: interrupt-controller@c000000 { + #interrupt-cells = <1>; + #address-cells = <0>; |