[PATCH v2 1/6] dt-bindings: clock: Add bindings for versal clock driver

Rajan Vaja
2019-11-22T09:45:43Z

Add documentation to describe Xilinx Versal clock driver
bindings.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
---
Changes in v2:
- Correct description.
- Add "select: false" field to avoid failing when firmware schema is
available.
- Remove "_clk" from clock names.
- Remove minItems and maxItems fields.

NOTE: firmware dt-bindings in yaml format will be added in a separate
change and $ref of this yaml to firmware will be added.
---
.../devicetree/bindings/clock/xlnx,versal-clk.yaml | 64 +++++++++++
include/dt-bindings/clock/xlnx-versal-clk.h | 123 +++++++++++++++++++++
2 files changed, 187 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
create mode 100644 include/dt-bindings/clock/xlnx-versal-clk.h

diff --git a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
new file mode 100644
index 0000000..a1f47cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/clock/xlnx,versal-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Versal clock controller
+
+maintainers:
+ - Michal Simek <michal.simek@xilinx.com>
+ - Jolly Shah <jolly.shah@xilinx.com>
+ - Rajan Vaja <rajan.vaja@xilinx.com>
+
+description: |
+ The clock controller is a hardware block of Xilinx versal clock tree. It
+ reads required input clock frequencies from the devicetree and acts as clock
+ provider for all clock consumers of PS clocks.
+
+select: false
+
+properties:
+ compatible:
+ const: xlnx,versal-clk
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ description: List of clock specifiers which are external input
+ clocks to the given clock controller.
+ items:
+ - description: reference clock
+ - description: alternate reference clock
+ - description: alternate reference clock for programmable logic
+
+ clock-names:
+ items:
+ - const: ref
+ - const: alt_ref
+ - const: pl_alt_ref
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ firmware {
+ zynqmp_firmware: zynqmp-firmware {
+ compatible = "xlnx,zynqmp-firmware";
+ method = "smc";
+ versal_clk: clock-controller {
+ #clock-cells = <1>;
+ compatible = "xlnx,versal-clk";
+ clocks = <&ref>, <&alt_ref>, <&pl_alt_ref>;
+ clock-names = "ref", "alt_ref", "pl_alt_ref";
+ };
+ };
+ };
+...
diff --git a/include/dt-bindings/clock/xlnx-versal-clk.h b/include/dt-bindings/clock/xlnx-versal-clk.h
new file mode 100644
index 0000000..264d634
--- /dev/null
+++ b/include/dt-bindings/clock/xlnx-versal-clk.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 Xilinx Inc.
+ *
+ */
+
+#ifndef _DT_BINDINGS_CLK_VERSAL_H
+#define _DT_BINDINGS_CLK_VERSAL_H
+
+#define PMC_PLL 1
+#define APU_PLL 2
+#define RPU_PLL 3
+#define CPM_PLL 4
+#define NOC_PLL 5
+#define PLL_MAX 6
+#define PMC_PRESRC 7
+#define PMC_POSTCLK 8
+#define PMC_PLL_OUT 9
+#define PPLL 10
+#define NOC_PRESRC 11
+#define NOC_POSTCLK 12
+#define NOC_PLL_OUT 13
+#define NPLL 14
+#define APU_PRESRC 15
+#define APU_POSTCLK 16
+#define APU_PLL_OUT 17
+#define APLL 18
+#define RPU_PRESRC 19
+#define RPU_POSTCLK 20
+#define RPU_PLL_OUT 21
+#define RPLL 22
+#define CPM_PRESRC 23
+#define CPM_POSTCLK 24
+#define CPM_PLL_OUT 25
+#define CPLL 26
+#define PPLL_TO_XPD 27
+#define NPLL_TO_XPD 28
+#define APLL_TO_XPD 29
+#define RPLL_TO_XPD 30
+#define EFUSE_REF 31
+#define SYSMON_REF 32
+#define IRO_SUSPEND_REF 33
+#define USB_SUSPEND 34
+#define SWITCH_TIMEOUT 35
+#define RCLK_PMC 36
+#define RCLK_LPD 37
+#define WDT 38
+#define TTC0 39
+#define TTC1 40
+#define TTC2 41
+#define TTC3 42
+#define GEM_TSU 43
+#define GEM_TSU_LB 44
+#define MUXED_IRO_DIV2 45
+#define MUXED_IRO_DIV4 46
+#define PSM_REF 47
+#define GEM0_RX 48
+#define GEM0_TX 49
+#define GEM1_RX 50
+#define GEM1_TX 51
+#define CPM_CORE_REF 52
+#define CPM_LSBUS_REF 53
+#define CPM_DBG_REF 54
+#define CPM_AUX0_REF 55
+#define CPM_AUX1_REF 56
+#define QSPI_REF 57
+#define OSPI_REF 58
+#define SDIO0_REF 59
+#define SDIO1_REF 60
+#define PMC_LSBUS_REF 61
+#define I2C_REF 62
+#define TEST_PATTERN_REF 63
+#define DFT_OSC_REF 64
+#define PMC_PL0_REF 65
+#define PMC_PL1_REF 66
+#define PMC_PL2_REF 67
+#define PMC_PL3_REF 68
+#define CFU_REF 69
+#define SPARE_REF 70
+#define NPI_REF 71
+#define HSM0_REF 72
+#define HSM1_REF 73
+#define SD_DLL_REF 74
+#define FPD_TOP_SWITCH 75
+#define FPD_LSBUS 76
+#define ACPU 77
+#define DBG_TRACE 78
+#define DBG_FPD 79
+#define LPD_TOP_SWITCH 80
+#define ADMA 81
+#define LPD_LSBUS 82
+#define CPU_R5 83
+#define CPU_R5_CORE 84
+#define CPU_R5_OCM 85
+#define CPU_R5_OCM2 86
+#define IOU_SWITCH 87
+#define GEM0_REF 88
+#define GEM1_REF 89
+#define GEM_TSU_REF 90
+#define USB0_BUS_REF 91
+#define UART0_REF 92
+#define UART1_REF 93
+#define SPI0_REF 94
+#define SPI1_REF 95
+#define CAN0_REF 96
+#define CAN1_REF 97
+#define I2C0_REF 98
+#define I2C1_REF 99
+#define DBG_LPD 100
+#define TIMESTAMP_REF 101
+#define DBG_TSTMP 102
+#define CPM_TOPSW_REF 103
+#define USB3_DUAL_REF 104
+#define OUTCLK_MAX 105
+#define REF_CLK 106
+#define PL_ALT_REF_CLK 107
+#define MUXED_IRO 108
+#define PL_EXT 109
+#define PL_LB 110
+#define MIO_50_OR_51 111
+#define MIO_24_OR_25 112
+
+#endif
--
2.7.4