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Message-Id: <20240426-th1520-clk-v2-v2-1-96b829e6fcee@tenstorrent.com>
Date: Fri, 26 Apr 2024 17:10:34 -0700
From: Drew Fustini <dfustini@...storrent.com>
To: Jisheng Zhang <jszhang@...nel.org>, Guo Ren <guoren@...nel.org>,
Fu Wei <wefu@...hat.com>, Yangtao Li <frank.li@...o.com>,
Thomas Bonnefille <thomas.bonnefille@...tlin.com>,
Emil Renner Berthing <emil.renner.berthing@...onical.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Drew Fustini <dfustini@...storrent.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>
Cc: linux-riscv@...ts.infradead.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH RFC v2 1/4] dt-bindings: clock: Document T-Head TH1520
AP_SUBSYS controller
Document bindings for the T-Head TH1520 AP sub-system clock controller.
Link: https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf
Co-developed-by: Yangtao Li <frank.li@...o.com>
Signed-off-by: Yangtao Li <frank.li@...o.com>
Signed-off-by: Drew Fustini <dfustini@...storrent.com>
---
.../bindings/clock/thead,th1520-clk-ap.yaml | 65 +++++++++++++++
MAINTAINERS | 2 +
include/dt-bindings/clock/thead,th1520-clk-ap.h | 96 ++++++++++++++++++++++
3 files changed, 163 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml b/Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
new file mode 100644
index 000000000000..611edc90f7b3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/thead,th1520-clk-ap.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: T-HEAD TH1520 AP sub-system clock controller
+
+description: |
+ The T-HEAD TH1520 AP sub-system clock controller configures the
+ CPU, DPU, GMAC and TEE PLLs.
+
+ SoC reference manual
+ https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf
+
+maintainers:
+ - Jisheng Zhang <jszhang@...nel.org>
+ - Wei Fu <wefu@...hat.com>
+ - Drew Fustini <dfustini@...storrent.com>
+
+properties:
+ compatible:
+ const: thead,th1520-clk-ap
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: main oscillator (24MHz)
+
+ clock-names:
+ items:
+ - const: osc
+
+ "#clock-cells":
+ const: 1
+ description:
+ See <dt-bindings/clock/thead,th1520-clk-ap.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/thead,th1520-clk-ap.h>
+ soc {
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clk: clock-controller@...f010000 {
+ compatible = "thead,th1520-clk-ap";
+ reg = <0xff 0xef010000 0x0 0x1000>;
+ clocks = <&osc>;
+ clock-names = "osc";
+ #clock-cells = <1>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index ebf03f5f0619..51d550cb1329 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19023,7 +19023,9 @@ M: Guo Ren <guoren@...nel.org>
M: Fu Wei <wefu@...hat.com>
L: linux-riscv@...ts.infradead.org
S: Maintained
+F: Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
F: arch/riscv/boot/dts/thead/
+F: include/dt-bindings/clock/thead,th1520-clk-ap.h
RNBD BLOCK DRIVERS
M: Md. Haris Iqbal <haris.iqbal@...os.com>
diff --git a/include/dt-bindings/clock/thead,th1520-clk-ap.h b/include/dt-bindings/clock/thead,th1520-clk-ap.h
new file mode 100644
index 000000000000..d0d1ab1e672a
--- /dev/null
+++ b/include/dt-bindings/clock/thead,th1520-clk-ap.h
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2023 Vivo Communication Technology Co. Ltd.
+ * Authors: Yangtao Li <frank.li@...o.com>
+ */
+
+#ifndef _DT_BINDINGS_CLK_TH1520_H_
+#define _DT_BINDINGS_CLK_TH1520_H_
+
+#define CLK_CPU_PLL0 0
+#define CLK_CPU_PLL1 1
+#define CLK_GMAC_PLL 2
+#define CLK_VIDEO_PLL 3
+#define CLK_DPU0_PLL 4
+#define CLK_DPU1_PLL 5
+#define CLK_TEE_PLL 6
+#define CLK_C910_I0 7
+#define CLK_C910 8
+#define CLK_BROM 9
+#define CLK_BMU 10
+#define CLK_AHB2_CPUSYS_HCLK 11
+#define CLK_APB3_CPUSYS_PCLK 12
+#define CLK_AXI4_CPUSYS2_ACLK 13
+#define CLK_AON2CPU_A2X 14
+#define CLK_X2X_CPUSYS 15
+#define CLK_AXI_ACLK 16
+#define CLK_CPU2AON_X2H 17
+#define CLK_PERI_AHB_HCLK 18
+#define CLK_CPU2PERI_X2H 19
+#define CLK_PERI_APB_PCLK 20
+#define CLK_PERI2APB_PCLK 21
+#define CLK_PERI_APB1_HCLK 22
+#define CLK_PERI_APB2_HCLK 23
+#define CLK_PERI_APB3_HCLK 24
+#define CLK_PERI_APB4_HCLK 25
+#define CLK_OSC12M 26
+#define CLK_OUT1 27
+#define CLK_OUT2 28
+#define CLK_OUT3 29
+#define CLK_OUT4 30
+#define CLK_APB_PCLK 31
+#define CLK_NPU 32
+#define CLK_NPU_AXI 33
+#define CLK_VI 34
+#define CLK_VI_AHB 35
+#define CLK_VO_AXI 36
+#define CLK_VP_APB 37
+#define CLK_VP_AXI 38
+#define CLK_CPU2VP 39
+#define CLK_VENC 40
+#define CLK_DPU0 41
+#define CLK_DPU1 42
+#define CLK_EMMC_SDIO 43
+#define CLK_GMAC1 44
+#define CLK_PADCTRL1 45
+#define CLK_DSMART 46
+#define CLK_PADCTRL0 47
+#define CLK_GMAC_AXI 48
+#define CLK_GPIO3 49
+#define CLK_GMAC0 50
+#define CLK_PWM 51
+#define CLK_QSPI0 52
+#define CLK_QSPI1 53
+#define CLK_SPI 54
+#define CLK_UART0_PCLK 55
+#define CLK_UART1_PCLK 56
+#define CLK_UART2_PCLK 57
+#define CLK_UART3_PCLK 58
+#define CLK_UART4_PCLK 59
+#define CLK_UART5_PCLK 60
+#define CLK_GPIO0 61
+#define CLK_GPIO1 62
+#define CLK_GPIO2 63
+#define CLK_I2C0 64
+#define CLK_I2C1 65
+#define CLK_I2C2 66
+#define CLK_I2C3 67
+#define CLK_I2C4 68
+#define CLK_I2C5 69
+#define CLK_SPINLOCK 70
+#define CLK_DMA 71
+#define CLK_MBOX0 72
+#define CLK_MBOX1 73
+#define CLK_MBOX2 74
+#define CLK_MBOX3 75
+#define CLK_WDT0 76
+#define CLK_WDT1 77
+#define CLK_TIMER0 78
+#define CLK_TIMER1 79
+#define CLK_SRAM0 80
+#define CLK_SRAM1 81
+#define CLK_SRAM2 82
+#define CLK_SRAM3 83
+#define CLK_PLL_GMAC_100M 84
+#define CLK_UART_SCLK 85
+#endif
--
2.34.1
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