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From: Paul Mackerras <paulus@ozlabs.org>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH v2 2/9] powerpc: Add Microwatt device tree
Date: Fri, 18 Jun 2021 13:44:16 +1000	[thread overview]
Message-ID: <YMwWkPcXlGDSQ9Q3@thinks.paulus.ozlabs.org> (raw)
In-Reply-To: <YMwWPcsaWzMlDPqQ@thinks.paulus.ozlabs.org>

Microwatt currently runs with MSR[HV] = 0, hence the usable-privilege
properties don't have bit 2 (for HV support) set, and we need the
/chosen/ibm,architecture-vec-5 property.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
 arch/powerpc/boot/dts/microwatt.dts | 98 +++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 arch/powerpc/boot/dts/microwatt.dts

diff --git a/arch/powerpc/boot/dts/microwatt.dts b/arch/powerpc/boot/dts/microwatt.dts
new file mode 100644
index 000000000000..ac264ad3faaf
--- /dev/null
+++ b/arch/powerpc/boot/dts/microwatt.dts
@@ -0,0 +1,98 @@
+/dts-v1/;
+
+/ {
+	#size-cells = <0x02>;
+	#address-cells = <0x02>;
+	model-name = "microwatt";
+	compatible = "microwatt-soc";
+
+	reserved-memory {
+		#size-cells = <0x02>;
+		#address-cells = <0x02>;
+		ranges;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x00000000 0x10000000>;
+	};
+
+	cpus {
+		#size-cells = <0x00>;
+		#address-cells = <0x01>;
+
+		ibm,powerpc-cpu-features {
+			display-name = "Microwatt";
+			isa = <3000>;
+			device_type = "cpu-features";
+			compatible = "ibm,powerpc-cpu-features";
+
+			mmu-radix {
+				isa = <3000>;
+				usable-privilege = <2>;
+			};
+
+			little-endian {
+				isa = <2050>;
+				usable-privilege = <3>;
+				hwcap-bit-nr = <1>;
+			};
+
+			cache-inhibited-large-page {
+				isa = <2040>;
+				usable-privilege = <2>;
+			};
+
+			fixed-point-v3 {
+				isa = <3000>;
+				usable-privilege = <3>;
+			};
+
+			no-execute {
+				isa = <2010>;
+				usable-privilege = <2>;
+			};
+
+			floating-point {
+				hwcap-bit-nr = <27>;
+				isa = <0>;
+				usable-privilege = <3>;
+			};
+		};
+
+		PowerPC,Microwatt@0 {
+			i-cache-sets = <2>;
+			ibm,dec-bits = <64>;
+			reservation-granule-size = <64>;
+			clock-frequency = <100000000>;
+			timebase-frequency = <100000000>;
+			i-tlb-sets = <1>;
+			ibm,ppc-interrupt-server#s = <0>;
+			i-cache-block-size = <64>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <2>;
+			i-tlb-size = <64>;
+			cpu-version = <0x990000>;
+			status = "okay";
+			i-cache-size = <0x1000>;
+			ibm,processor-radix-AP-encodings = <0x0c 0xa0000010 0x20000015 0x4000001e>;
+			tlb-size = <0>;
+			tlb-sets = <0>;
+			device_type = "cpu";
+			d-tlb-size = <128>;
+			d-tlb-sets = <2>;
+			reg = <0>;
+			general-purpose;
+			64-bit;
+			d-cache-size = <0x1000>;
+			ibm,chip-id = <0>;
+		};
+	};
+
+	chosen {
+		bootargs = "";
+		ibm,architecture-vec-5 = [19 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00
+					  00 00 00 00 00 00 00 00 40 00 40];
+	};
+
+};
-- 
2.31.1


  parent reply	other threads:[~2021-06-18  3:53 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-18  3:42 [PATCH v2 0/9] powerpc: Add support for Microwatt soft-core Paul Mackerras
2021-06-18  3:43 ` [PATCH v2 1/9] powerpc: Add Microwatt platform Paul Mackerras
2021-06-19  3:03   ` Nicholas Piggin
2021-06-18  3:44 ` Paul Mackerras [this message]
2021-06-19 14:26   ` [PATCH v2 2/9] powerpc: Add Microwatt device tree Segher Boessenkool
2021-06-20 12:08     ` Paul Mackerras
2021-06-21 13:54       ` Segher Boessenkool
2021-06-18  3:45 ` [PATCH v2 3/9] powerpc/microwatt: Populate platform bus from device-tree Paul Mackerras
2021-06-18  3:45 ` [PATCH v2 4/9] powerpc/xics: Add a native ICS backend for microwatt Paul Mackerras
2021-06-18  3:46 ` [PATCH v2 5/9] powerpc/microwatt: Use standard 16550 UART for console Paul Mackerras
2021-06-18  7:40   ` Nicholas Piggin
2021-06-18 12:12     ` Paul Mackerras
2021-06-19  2:58       ` Nicholas Piggin
2021-08-12 13:14   ` Christophe Leroy
2021-08-12 16:09     ` Segher Boessenkool
2021-06-18  3:47 ` [PATCH v2 6/9] powerpc/microwatt: Add support for hardware random number generator Paul Mackerras
2021-06-19  3:08   ` Nicholas Piggin
2021-06-19 14:36     ` Segher Boessenkool
2021-06-20  8:19       ` Nicholas Piggin
2021-06-18  3:48 ` [PATCH v2 7/9] powerpc/microwatt: Add microwatt_defconfig Paul Mackerras
2021-06-18  3:49 ` [PATCH v2 8/9] powerpc/boot: Fixup device-tree on little endian Paul Mackerras
2021-06-19  3:14   ` Nicholas Piggin
2021-06-18  3:49 ` [PATCH v2 9/9] powerpc/boot: Add a boot wrapper for Microwatt Paul Mackerras
2021-06-19  3:16   ` Nicholas Piggin
2021-06-19 14:45 ` [PATCH v2 0/9] powerpc: Add support for Microwatt soft-core Segher Boessenkool
2021-06-24 14:03 ` Michael Ellerman

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