* [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs
@ 2017-04-04 9:50 Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs Icenowy Zheng
` (5 more replies)
0 siblings, 6 replies; 11+ messages in thread
From: Icenowy Zheng @ 2017-04-04 9:50 UTC (permalink / raw)
To: Maxime Ripard, Chen-Yu Tsai, Rob Herring
Cc: linux-clk, devicetree, linux-arm-kernel, linux-kernel,
linux-sunxi, Icenowy Zheng
Allwinner SoCs after sun6i-a31 nearly all have a R_CCU in PRCM part.
(V3s and R40 do not have it, as they have even no PRCM)
This patch adds support for the ones on H3/A64.
Some clock/reset values are reserved for easier extending the support to
A31/A23, but for this I think some changes to the PRCM MFD should be made,
see [1] (Although this is only a sketch).
The r_pio device node is also added for A64, as the driver is already
merged, and its depends (r_ccu) is now met.
[1] https://github.com/wens/linux/commits/sunxi-ng-prcm
Icenowy Zheng (5):
dt-bindings: update device tree binding for Allwinner PRCM CCUs
clk: sunxi-ng: add support for PRCM CCUs
arm64: allwinner: a64: add r_ccu node
ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu
arm64: allwinner: a64: add R_PIO pinctrl node
.../devicetree/bindings/clock/sunxi-ccu.txt | 17 +-
arch/arm/boot/dts/sunxi-h3-h5.dtsi | 45 ++---
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 29 +++
drivers/clk/sunxi-ng/Kconfig | 6 +
drivers/clk/sunxi-ng/Makefile | 1 +
drivers/clk/sunxi-ng/ccu-sun8i-r.c | 213 +++++++++++++++++++++
drivers/clk/sunxi-ng/ccu-sun8i-r.h | 27 +++
include/dt-bindings/clock/sun8i-r-ccu.h | 59 ++++++
include/dt-bindings/reset/sun8i-r-ccu.h | 53 +++++
9 files changed, 418 insertions(+), 32 deletions(-)
create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-r.c
create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-r.h
create mode 100644 include/dt-bindings/clock/sun8i-r-ccu.h
create mode 100644 include/dt-bindings/reset/sun8i-r-ccu.h
--
2.12.2
^ permalink raw reply [flat|nested] 11+ messages in thread* [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs 2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng @ 2017-04-04 9:50 ` Icenowy Zheng 2017-04-04 9:50 ` [PATCH v4 2/5] clk: sunxi-ng: add support for " Icenowy Zheng ` (4 subsequent siblings) 5 siblings, 0 replies; 11+ messages in thread From: Icenowy Zheng @ 2017-04-04 9:50 UTC (permalink / raw) To: Maxime Ripard, Chen-Yu Tsai, Rob Herring Cc: devicetree, linux-kernel, linux-sunxi, Icenowy Zheng, linux-clk, linux-arm-kernel From: Icenowy Zheng <icenowy@aosc.xyz> Many Allwinner SoCs after A31 have a CCU in PRCM block. Give the ones on H3 and A64 compatible strings. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Rob Herring <robh@kernel.org> --- Changes in v4: - Add Rob's ACK. Changes in v3: - Removed frequency info of iosc in this device tree binding document. Changes in v2: - Add iosc for R_CCU's on H3/A64. Documentation/devicetree/bindings/clock/sunxi-ccu.txt | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt index 68512aa398a9..e9c5a1d9834a 100644 --- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt +++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt @@ -7,9 +7,11 @@ Required properties : - "allwinner,sun8i-a23-ccu" - "allwinner,sun8i-a33-ccu" - "allwinner,sun8i-h3-ccu" + - "allwinner,sun8i-h3-r-ccu" - "allwinner,sun8i-v3s-ccu" - "allwinner,sun9i-a80-ccu" - "allwinner,sun50i-a64-ccu" + - "allwinner,sun50i-a64-r-ccu" - "allwinner,sun50i-h5-ccu" - reg: Must contain the registers base address and length @@ -20,7 +22,10 @@ Required properties : - #clock-cells : must contain 1 - #reset-cells : must contain 1 -Example: +For the PRCM CCUs on H3/A64, one more clock is needed: +- "iosc": the SoC's internal frequency oscillator + +Example for generic CCU: ccu: clock@01c20000 { compatible = "allwinner,sun8i-h3-ccu"; reg = <0x01c20000 0x400>; @@ -29,3 +34,13 @@ ccu: clock@01c20000 { #clock-cells = <1>; #reset-cells = <1>; }; + +Example for PRCM CCU: +r_ccu: clock@01f01400 { + compatible = "allwinner,sun50i-a64-r-ccu"; + reg = <0x01f01400 0x100>; + clocks = <&osc24M>, <&osc32k>, <&iosc>; + clock-names = "hosc", "losc", "iosc"; + #clock-cells = <1>; + #reset-cells = <1>; +}; -- 2.12.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v4 2/5] clk: sunxi-ng: add support for PRCM CCUs 2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng 2017-04-04 9:50 ` [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs Icenowy Zheng @ 2017-04-04 9:50 ` Icenowy Zheng 2017-04-04 9:50 ` [PATCH v4 3/5] arm64: allwinner: a64: add r_ccu node Icenowy Zheng ` (3 subsequent siblings) 5 siblings, 0 replies; 11+ messages in thread From: Icenowy Zheng @ 2017-04-04 9:50 UTC (permalink / raw) To: Maxime Ripard, Chen-Yu Tsai, Rob Herring Cc: devicetree, linux-kernel, linux-sunxi, Icenowy Zheng, linux-clk, linux-arm-kernel From: Icenowy Zheng <icenowy@aosc.xyz> SoCs after A31 has a clock controller module in the PRCM part. Support the clock controller module on H3/5 and A64 now. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> --- Changes in v4: - Add missing twd items in *_ccu_clks. Changes in v3: - Change osc32000 mux to iosc, as its frequency varies between SoCs. (And none of them is really 32000Hz) Changes in v2: - Replace all sun6i to sun8i, as this driver currently doesn't really support sun6i(A31). - Add osc32000 mux for ar100 clk. (Note: the frequency is proven to be wrong during the development of PATCH v3). - Rename some clocks. - Add gate of TWD (Trusted Watchdog). There's no reset for TWD. - Removed reset of PIO, which doesn't exist really. drivers/clk/sunxi-ng/Kconfig | 6 + drivers/clk/sunxi-ng/Makefile | 1 + drivers/clk/sunxi-ng/ccu-sun8i-r.c | 213 ++++++++++++++++++++++++++++++++ drivers/clk/sunxi-ng/ccu-sun8i-r.h | 27 ++++ include/dt-bindings/clock/sun8i-r-ccu.h | 59 +++++++++ include/dt-bindings/reset/sun8i-r-ccu.h | 53 ++++++++ 6 files changed, 359 insertions(+) create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-r.c create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-r.h create mode 100644 include/dt-bindings/clock/sun8i-r-ccu.h create mode 100644 include/dt-bindings/reset/sun8i-r-ccu.h diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig index 8af8f4be8e3b..fbd3f8cd5c22 100644 --- a/drivers/clk/sunxi-ng/Kconfig +++ b/drivers/clk/sunxi-ng/Kconfig @@ -151,4 +151,10 @@ config SUN9I_A80_CCU default MACH_SUN9I depends on MACH_SUN9I || COMPILE_TEST +config SUN8I_R_CCU + bool "Support for Allwinner SoCs' PRCM CCUs" + select SUNXI_CCU_DIV + select SUNXI_CCU_GATE + default MACH_SUN8I || (ARCH_SUNXI && ARM64) + endif diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile index 6feaac0c5600..0ec02fe14c50 100644 --- a/drivers/clk/sunxi-ng/Makefile +++ b/drivers/clk/sunxi-ng/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_SUN8I_A23_CCU) += ccu-sun8i-a23.o obj-$(CONFIG_SUN8I_A33_CCU) += ccu-sun8i-a33.o obj-$(CONFIG_SUN8I_H3_CCU) += ccu-sun8i-h3.o obj-$(CONFIG_SUN8I_V3S_CCU) += ccu-sun8i-v3s.o +obj-$(CONFIG_SUN8I_R_CCU) += ccu-sun8i-r.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-de.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-usb.o diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r.c b/drivers/clk/sunxi-ng/ccu-sun8i-r.c new file mode 100644 index 000000000000..0d027d53dbdf --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun8i-r.c @@ -0,0 +1,213 @@ +/* + * Copyright (c) 2016 Icenowy Zheng <icenowy@aosc.xyz> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> + +#include "ccu_common.h" +#include "ccu_reset.h" + +#include "ccu_div.h" +#include "ccu_gate.h" +#include "ccu_mp.h" +#include "ccu_nm.h" + +#include "ccu-sun8i-r.h" + +static const char * const ar100_parents[] = { "osc32k", "osc24M", + "pll-periph0", "iosc" }; + +static struct ccu_div ar100_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO), + + .mux = { + .shift = 16, + .width = 2, + + .variable_prediv = { + .index = 2, + .shift = 8, + .width = 5, + }, + }, + + .common = { + .reg = 0x00, + .features = CCU_FEATURE_VARIABLE_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS("ar100", + ar100_parents, + &ccu_div_ops, + 0), + }, +}; + +static CLK_FIXED_FACTOR(ahb0_clk, "ahb0", "ar100", 1, 1, 0); + +static struct ccu_div apb0_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(0, 2, CLK_DIVIDER_POWER_OF_TWO), + + .common = { + .reg = 0x0c, + .hw.init = CLK_HW_INIT("apb0", + "ahb0", + &ccu_div_ops, + 0), + }, +}; + +static SUNXI_CCU_GATE(apb0_pio_clk, "apb0-pio", "apb0", + 0x28, BIT(0), 0); +static SUNXI_CCU_GATE(apb0_ir_clk, "apb0-ir", "apb0", + 0x28, BIT(1), 0); +static SUNXI_CCU_GATE(apb0_timer_clk, "apb0-timer", "apb0", + 0x28, BIT(2), 0); +static SUNXI_CCU_GATE(apb0_rsb_clk, "apb0-rsb", "apb0", + 0x28, BIT(3), 0); +static SUNXI_CCU_GATE(apb0_uart_clk, "apb0-uart", "apb0", + 0x28, BIT(4), 0); +static SUNXI_CCU_GATE(apb0_i2c_clk, "apb0-i2c", "apb0", + 0x28, BIT(6), 0); +static SUNXI_CCU_GATE(apb0_twd_clk, "apb0-twd", "apb0", + 0x28, BIT(7), 0); + +static const char * const r_mod0_default_parents[] = { "osc32K", "osc24M" }; +static SUNXI_CCU_MP_WITH_MUX_GATE(ir_clk, "ir", + r_mod0_default_parents, 0x54, + 0, 4, /* M */ + 16, 2, /* P */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); + +static struct ccu_common *sun8i_h3_r_ccu_clks[] = { + &ar100_clk.common, + &apb0_clk.common, + &apb0_pio_clk.common, + &apb0_ir_clk.common, + &apb0_timer_clk.common, + &apb0_uart_clk.common, + &apb0_i2c_clk.common, + &apb0_twd_clk.common, + &ir_clk.common, +}; + +static struct ccu_common *sun50i_a64_r_ccu_clks[] = { + &ar100_clk.common, + &apb0_clk.common, + &apb0_pio_clk.common, + &apb0_ir_clk.common, + &apb0_timer_clk.common, + &apb0_rsb_clk.common, + &apb0_uart_clk.common, + &apb0_i2c_clk.common, + &apb0_twd_clk.common, + &ir_clk.common, +}; + +static struct clk_hw_onecell_data sun8i_h3_r_hw_clks = { + .hws = { + [CLK_AR100] = &ar100_clk.common.hw, + [CLK_AHB0] = &ahb0_clk.hw, + [CLK_APB0] = &apb0_clk.common.hw, + [CLK_APB0_PIO] = &apb0_pio_clk.common.hw, + [CLK_APB0_IR] = &apb0_ir_clk.common.hw, + [CLK_APB0_TIMER] = &apb0_timer_clk.common.hw, + [CLK_APB0_UART] = &apb0_uart_clk.common.hw, + [CLK_APB0_I2C] = &apb0_i2c_clk.common.hw, + [CLK_APB0_TWD] = &apb0_twd_clk.common.hw, + [CLK_IR] = &ir_clk.common.hw, + }, + .num = CLK_NUMBER, +}; + +static struct clk_hw_onecell_data sun50i_a64_r_hw_clks = { + .hws = { + [CLK_AR100] = &ar100_clk.common.hw, + [CLK_AHB0] = &ahb0_clk.hw, + [CLK_APB0] = &apb0_clk.common.hw, + [CLK_APB0_PIO] = &apb0_pio_clk.common.hw, + [CLK_APB0_IR] = &apb0_ir_clk.common.hw, + [CLK_APB0_TIMER] = &apb0_timer_clk.common.hw, + [CLK_APB0_RSB] = &apb0_rsb_clk.common.hw, + [CLK_APB0_UART] = &apb0_uart_clk.common.hw, + [CLK_APB0_I2C] = &apb0_i2c_clk.common.hw, + [CLK_APB0_TWD] = &apb0_twd_clk.common.hw, + [CLK_IR] = &ir_clk.common.hw, + }, + .num = CLK_NUMBER, +}; + +static struct ccu_reset_map sun8i_h3_r_ccu_resets[] = { + [RST_APB0_IR] = { 0xb0, BIT(1) }, + [RST_APB0_TIMER] = { 0xb0, BIT(2) }, + [RST_APB0_UART] = { 0xb0, BIT(4) }, + [RST_APB0_I2C] = { 0xb0, BIT(6) }, +}; + +static struct ccu_reset_map sun50i_a64_r_ccu_resets[] = { + [RST_APB0_IR] = { 0xb0, BIT(1) }, + [RST_APB0_TIMER] = { 0xb0, BIT(2) }, + [RST_APB0_RSB] = { 0xb0, BIT(3) }, + [RST_APB0_UART] = { 0xb0, BIT(4) }, + [RST_APB0_I2C] = { 0xb0, BIT(6) }, +}; + +static const struct sunxi_ccu_desc sun8i_h3_r_ccu_desc = { + .ccu_clks = sun8i_h3_r_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun8i_h3_r_ccu_clks), + + .hw_clks = &sun8i_h3_r_hw_clks, + + .resets = sun8i_h3_r_ccu_resets, + .num_resets = ARRAY_SIZE(sun8i_h3_r_ccu_resets), +}; + +static const struct sunxi_ccu_desc sun50i_a64_r_ccu_desc = { + .ccu_clks = sun50i_a64_r_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun50i_a64_r_ccu_clks), + + .hw_clks = &sun50i_a64_r_hw_clks, + + .resets = sun50i_a64_r_ccu_resets, + .num_resets = ARRAY_SIZE(sun50i_a64_r_ccu_resets), +}; + +static void __init sunxi_r_ccu_init(struct device_node *node, + const struct sunxi_ccu_desc *desc) +{ + void __iomem *reg; + + reg = of_io_request_and_map(node, 0, of_node_full_name(node)); + if (IS_ERR(reg)) { + pr_err("%s: Could not map the clock registers\n", + of_node_full_name(node)); + return; + } + + sunxi_ccu_probe(node, reg, desc); +} + +static void __init sun8i_h3_r_ccu_setup(struct device_node *node) +{ + sunxi_r_ccu_init(node, &sun8i_h3_r_ccu_desc); +} +CLK_OF_DECLARE(sun8i_h3_r_ccu, "allwinner,sun8i-h3-r-ccu", + sun8i_h3_r_ccu_setup); + +static void __init sun50i_a64_r_ccu_setup(struct device_node *node) +{ + sunxi_r_ccu_init(node, &sun50i_a64_r_ccu_desc); +} +CLK_OF_DECLARE(sun50i_a64_r_ccu, "allwinner,sun50i-a64-r-ccu", + sun50i_a64_r_ccu_setup); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r.h b/drivers/clk/sunxi-ng/ccu-sun8i-r.h new file mode 100644 index 000000000000..eaa431fd1d8f --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun8i-r.h @@ -0,0 +1,27 @@ +/* + * Copyright 2016 Icenowy <icenowy@aosc.xyz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CCU_SUN8I_R_H +#define _CCU_SUN8I_R_H_ + +#include <dt-bindings/clock/sun8i-r-ccu.h> +#include <dt-bindings/reset/sun8i-r-ccu.h> + +/* AHB/APB bus clocks are not exported */ +#define CLK_AHB0 1 +#define CLK_APB0 2 + +#define CLK_NUMBER (CLK_APB0_TWD + 1) + +#endif /* _CCU_SUN8I_R_H */ diff --git a/include/dt-bindings/clock/sun8i-r-ccu.h b/include/dt-bindings/clock/sun8i-r-ccu.h new file mode 100644 index 000000000000..779d20aa0d05 --- /dev/null +++ b/include/dt-bindings/clock/sun8i-r-ccu.h @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2016 Icenowy Zheng <icenowy@aosc.xyz> + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _DT_BINDINGS_CLK_SUN8I_R_CCU_H_ +#define _DT_BINDINGS_CLK_SUN8I_R_CCU_H_ + +#define CLK_AR100 0 + +#define CLK_APB0_PIO 3 +#define CLK_APB0_IR 4 +#define CLK_APB0_TIMER 5 +#define CLK_APB0_RSB 6 +#define CLK_APB0_UART 7 +/* 8 is reserved for CLK_APB0_W1 on A31 */ +#define CLK_APB0_I2C 9 +#define CLK_APB0_TWD 10 + +#define CLK_IR 11 + +#endif /* _DT_BINDINGS_CLK_SUN8I_R_CCU_H_ */ diff --git a/include/dt-bindings/reset/sun8i-r-ccu.h b/include/dt-bindings/reset/sun8i-r-ccu.h new file mode 100644 index 000000000000..4ba64f3d6fc9 --- /dev/null +++ b/include/dt-bindings/reset/sun8i-r-ccu.h @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2016 Icenowy Zheng <icenowy@aosc.xyz> + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _DT_BINDINGS_RST_SUN8I_R_CCU_H_ +#define _DT_BINDINGS_RST_SUN8I_R_CCU_H_ + +#define RST_APB0_IR 0 +#define RST_APB0_TIMER 1 +#define RST_APB0_RSB 2 +#define RST_APB0_UART 3 +/* 4 is reserved for RST_APB0_W1 on A31 */ +#define RST_APB0_I2C 5 + +#endif /* _DT_BINDINGS_RST_SUN8I_R_CCU_H_ */ -- 2.12.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v4 3/5] arm64: allwinner: a64: add r_ccu node 2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng 2017-04-04 9:50 ` [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs Icenowy Zheng 2017-04-04 9:50 ` [PATCH v4 2/5] clk: sunxi-ng: add support for " Icenowy Zheng @ 2017-04-04 9:50 ` Icenowy Zheng 2017-04-04 9:50 ` [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu Icenowy Zheng ` (2 subsequent siblings) 5 siblings, 0 replies; 11+ messages in thread From: Icenowy Zheng @ 2017-04-04 9:50 UTC (permalink / raw) To: Maxime Ripard, Chen-Yu Tsai, Rob Herring Cc: devicetree, linux-kernel, linux-sunxi, Icenowy Zheng, linux-clk, linux-arm-kernel From: Icenowy Zheng <icenowy@aosc.xyz> A64 SoC have a CCU (r_ccu) in PRCM block. Add the device node for it. The mux 3 of R_CCU is an internal oscillator, which is 16MHz according to the user manual, and has only 30% accuracy based on our experience on older SoCs. The real mesaured value of it on two Pine64 boards is around 11MHz, which is around 70% of 16MHz. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> --- Changes in v4: - Temporarily dropped the CCU headers. Changes in v3: - Change osc32000 to iosc, which is 16MHz plus minus 30%, according to the RTC chapter of the user manual and our experiences on A33. Changes in v2: - Add osc32000. arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 1c64ea2d23f9..1d4e5bcced0c 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -98,6 +98,14 @@ clock-output-names = "osc32k"; }; + iosc: internal-osc-clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <16000000>; + clock-accuracy = <300000000>; + clock-output-names = "iosc"; + }; + psci { compatible = "arm,psci-0.2"; method = "smc"; @@ -392,5 +400,14 @@ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; }; + + r_ccu: clock@1f01400 { + compatible = "allwinner,sun50i-a64-r-ccu"; + reg = <0x01f01400 0x100>; + clocks = <&osc24M>, <&osc32k>, <&iosc>; + clock-names = "hosc", "losc", "iosc"; + #clock-cells = <1>; + #reset-cells = <1>; + }; }; }; -- 2.12.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu 2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng ` (2 preceding siblings ...) 2017-04-04 9:50 ` [PATCH v4 3/5] arm64: allwinner: a64: add r_ccu node Icenowy Zheng @ 2017-04-04 9:50 ` Icenowy Zheng [not found] ` <1500505173.23770.1.camel@xff.cz> 2017-04-04 9:51 ` [PATCH v4 5/5] arm64: allwinner: a64: add R_PIO pinctrl node Icenowy Zheng 2017-04-04 15:45 ` [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Maxime Ripard 5 siblings, 1 reply; 11+ messages in thread From: Icenowy Zheng @ 2017-04-04 9:50 UTC (permalink / raw) To: Maxime Ripard, Chen-Yu Tsai, Rob Herring Cc: devicetree, linux-kernel, linux-sunxi, Icenowy Zheng, linux-clk, linux-arm-kernel From: Icenowy Zheng <icenowy@aosc.xyz> Now we have driver for the PRCM CCU, switch to use it instead of old-style clock nodes for apb0-related clocks in sunxi-h3-h5.dtsi . The mux 3 of R_CCU is still the internal oscillator, which is said to be 16MHz plus minus 30%, and get a measured value of 15MHz~16MHz on my two H3 boards and one H5 board. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> --- Changes in v4: - Temporarily dropped the CCU headers. Changes in v3: - Change osc32000 to iosc. arch/arm/boot/dts/sunxi-h3-h5.dtsi | 45 ++++++++++++-------------------------- 1 file changed, 14 insertions(+), 31 deletions(-) diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi index 6640ebfa6419..1aeeacb3a884 100644 --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi @@ -68,31 +68,12 @@ clock-output-names = "osc32k"; }; - apb0: apb0_clk { - compatible = "fixed-factor-clock"; + iosc: internal-osc-clk { #clock-cells = <0>; - clock-div = <1>; - clock-mult = <1>; - clocks = <&osc24M>; - clock-output-names = "apb0"; - }; - - apb0_gates: clk@01f01428 { - compatible = "allwinner,sun8i-h3-apb0-gates-clk", - "allwinner,sun4i-a10-gates-clk"; - reg = <0x01f01428 0x4>; - #clock-cells = <1>; - clocks = <&apb0>; - clock-indices = <0>, <1>; - clock-output-names = "apb0_pio", "apb0_ir"; - }; - - ir_clk: ir_clk@01f01454 { - compatible = "allwinner,sun4i-a10-mod0-clk"; - reg = <0x01f01454 0x4>; - #clock-cells = <0>; - clocks = <&osc32k>, <&osc24M>; - clock-output-names = "ir"; + compatible = "fixed-clock"; + clock-frequency = <16000000>; + clock-accuracy = <300000000>; + clock-output-names = "iosc"; }; }; @@ -576,9 +557,12 @@ <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; }; - apb0_reset: reset@01f014b0 { - reg = <0x01f014b0 0x4>; - compatible = "allwinner,sun6i-a31-clock-reset"; + r_ccu: clock@1f01400 { + compatible = "allwinner,sun50i-a64-r-ccu"; + reg = <0x01f01400 0x100>; + clocks = <&osc24M>, <&osc32k>, <&iosc>; + clock-names = "hosc", "losc", "iosc"; + #clock-cells = <1>; #reset-cells = <1>; }; @@ -589,9 +573,9 @@ ir: ir@01f02000 { compatible = "allwinner,sun5i-a13-ir"; - clocks = <&apb0_gates 1>, <&ir_clk>; + clocks = <&r_ccu 4>, <&r_ccu 11>; clock-names = "apb", "ir"; - resets = <&apb0_reset 1>; + resets = <&r_ccu 0>; interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>; reg = <0x01f02000 0x40>; status = "disabled"; @@ -601,9 +585,8 @@ compatible = "allwinner,sun8i-h3-r-pinctrl"; reg = <0x01f02c00 0x400>; interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&apb0_gates 0>, <&osc24M>, <&osc32k>; + clocks = <&r_ccu 3>, <&osc24M>, <&osc32k>; clock-names = "apb", "hosc", "losc"; - resets = <&apb0_reset 0>; gpio-controller; #gpio-cells = <3>; interrupt-controller; -- 2.12.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 11+ messages in thread
[parent not found: <1500505173.23770.1.camel@xff.cz>]
* Re: [linux-sunxi] [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu [not found] ` <1500505173.23770.1.camel@xff.cz> @ 2017-07-20 2:03 ` icenowy 2017-07-20 2:19 ` icenowy 2017-07-20 5:15 ` icenowy 2017-07-20 8:21 ` icenowy 1 sibling, 2 replies; 11+ messages in thread From: icenowy @ 2017-07-20 2:03 UTC (permalink / raw) To: Ondřej Jirman Cc: devicetree, Chen-Yu Tsai, linux-kernel, linux-sunxi, Icenowy Zheng, Maxime Ripard, linux-clk, linux-arm-kernel 5ZyoIDIwMTctMDctMjAgMDY6NTnvvIxPbmTFmWVqIEppcm1hbiDlhpnpgZPvvJoKPiBIaSwKPiAK PiBJY2Vub3d5IFpoZW5nIHDDrcWhZSB2IMOadCAwNC4gMDQuIDIwMTcgdiAxNzo1MCArMDgwMDoK Pj4gRnJvbTogSWNlbm93eSBaaGVuZyA8aWNlbm93eUBhb3NjLnh5ej4KPj4gCj4+IE5vdyB3ZSBo YXZlIGRyaXZlciBmb3IgdGhlIFBSQ00gQ0NVLCBzd2l0Y2ggdG8gdXNlIGl0IGluc3RlYWQgb2YK Pj4gb2xkLXN0eWxlIGNsb2NrIG5vZGVzIGZvciBhcGIwLXJlbGF0ZWQgY2xvY2tzIGluIHN1bnhp LWgzLWg1LmR0c2kgLgo+PiAKPj4gVGhlIG11eCAzIG9mIFJfQ0NVIGlzIHN0aWxsIHRoZSBpbnRl 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* Re: [linux-sunxi] [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu 2017-07-20 2:03 ` [linux-sunxi] " icenowy @ 2017-07-20 2:19 ` icenowy 2017-07-20 5:15 ` icenowy 1 sibling, 0 replies; 11+ messages in thread From: icenowy @ 2017-07-20 2:19 UTC (permalink / raw) To: Ondřej Jirman Cc: devicetree, linux-sunxi, linux-kernel, Chen-Yu Tsai, Icenowy Zheng, Maxime Ripard, linux-clk, linux-arm-kernel 5ZyoIDIwMTctMDctMjAgMTA6MDPvvIxpY2Vub3d5QGFvc2MuaW8g5YaZ6YGT77yaCj4g5ZyoIDIw MTctMDctMjAgMDY6NTnvvIxPbmTFmWVqIEppcm1hbiDlhpnpgZPvvJoKPj4gSGksCj4+IAo+PiBJ Y2Vub3d5IFpoZW5nIHDDrcWhZSB2IMOadCAwNC4gMDQuIDIwMTcgdiAxNzo1MCArMDgwMDoKPj4+ IEZyb206IEljZW5vd3kgWmhlbmcgPGljZW5vd3lAYW9zYy54eXo+Cj4+PiAKPj4+IE5vdyB3ZSBo YXZlIGRyaXZlciBmb3IgdGhlIFBSQ00gQ0NVLCBzd2l0Y2ggdG8gdXNlIGl0IGluc3RlYWQgb2YK Pj4+IG9sZC1zdHlsZSBjbG9jayBub2RlcyBmb3IgYXBiMC1yZWxhdGVkIGNsb2NrcyBpbiBzdW54 aS1oMy1oNS5kdHNpIC4KPj4+IAo+Pj4gVGhlIG11eCAzIG9mIFJfQ0NVIGlzIHN0aWxsIHRoZSBp 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* Re: [linux-sunxi] [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu 2017-07-20 2:03 ` [linux-sunxi] " icenowy 2017-07-20 2:19 ` icenowy @ 2017-07-20 5:15 ` icenowy 1 sibling, 0 replies; 11+ messages in thread From: icenowy @ 2017-07-20 5:15 UTC (permalink / raw) To: Ondřej Jirman Cc: devicetree, linux-sunxi, linux-kernel, Chen-Yu Tsai, Icenowy Zheng, Maxime Ripard, linux-clk, linux-arm-kernel 5ZyoIDIwMTctMDctMjAgMTA6MDPvvIxpY2Vub3d5QGFvc2MuaW8g5YaZ6YGT77yaCj4g5ZyoIDIw MTctMDctMjAgMDY6NTnvvIxPbmTFmWVqIEppcm1hbiDlhpnpgZPvvJoKPj4gSGksCj4+IAo+PiBJ Y2Vub3d5IFpoZW5nIHDDrcWhZSB2IMOadCAwNC4gMDQuIDIwMTcgdiAxNzo1MCArMDgwMDoKPj4+ IEZyb206IEljZW5vd3kgWmhlbmcgPGljZW5vd3lAYW9zYy54eXo+Cj4+PiAKPj4+IE5vdyB3ZSBo YXZlIGRyaXZlciBmb3IgdGhlIFBSQ00gQ0NVLCBzd2l0Y2ggdG8gdXNlIGl0IGluc3RlYWQgb2YK Pj4+IG9sZC1zdHlsZSBjbG9jayBub2RlcyBmb3IgYXBiMC1yZWxhdGVkIGNsb2NrcyBpbiBzdW54 aS1oMy1oNS5kdHNpIC4KPj4+IAo+Pj4gVGhlIG11eCAzIG9mIFJfQ0NVIGlzIHN0aWxsIHRoZSBp 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* Re: [linux-sunxi] [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu [not found] ` <1500505173.23770.1.camel@xff.cz> 2017-07-20 2:03 ` [linux-sunxi] " icenowy @ 2017-07-20 8:21 ` icenowy 1 sibling, 0 replies; 11+ messages in thread From: icenowy @ 2017-07-20 8:21 UTC (permalink / raw) To: Ondřej Jirman Cc: devicetree, Chen-Yu Tsai, linux-kernel, linux-sunxi, Icenowy Zheng, Maxime Ripard, linux-clk, linux-arm-kernel 5ZyoIDIwMTctMDctMjAgMDY6NTnvvIxPbmTFmWVqIEppcm1hbiDlhpnpgZPvvJoKPiBIaSwKPiAK PiBJY2Vub3d5IFpoZW5nIHDDrcWhZSB2IMOadCAwNC4gMDQuIDIwMTcgdiAxNzo1MCArMDgwMDoK Pj4gRnJvbTogSWNlbm93eSBaaGVuZyA8aWNlbm93eUBhb3NjLnh5ej4KPj4gCj4+IE5vdyB3ZSBo YXZlIGRyaXZlciBmb3IgdGhlIFBSQ00gQ0NVLCBzd2l0Y2ggdG8gdXNlIGl0IGluc3RlYWQgb2YK Pj4gb2xkLXN0eWxlIGNsb2NrIG5vZGVzIGZvciBhcGIwLXJlbGF0ZWQgY2xvY2tzIGluIHN1bnhp LWgzLWg1LmR0c2kgLgo+PiAKPj4gVGhlIG11eCAzIG9mIFJfQ0NVIGlzIHN0aWxsIHRoZSBpbnRl cm5hbCBvc2NpbGxhdG9yLCB3aGljaCBpcyBzYWlkIHRvIAo+PiBiZQo+PiAxNk1IeiBwbHVzIG1p 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* [PATCH v4 5/5] arm64: allwinner: a64: add R_PIO pinctrl node 2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng ` (3 preceding siblings ...) 2017-04-04 9:50 ` [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu Icenowy Zheng @ 2017-04-04 9:51 ` Icenowy Zheng 2017-04-04 15:45 ` [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Maxime Ripard 5 siblings, 0 replies; 11+ messages in thread From: Icenowy Zheng @ 2017-04-04 9:51 UTC (permalink / raw) To: Maxime Ripard, Chen-Yu Tsai, Rob Herring Cc: devicetree, linux-kernel, linux-sunxi, Icenowy Zheng, linux-clk, linux-arm-kernel From: Icenowy Zheng <icenowy@aosc.xyz> Allwinner A64 have a dedicated pin controller to manage the PL pin bank. As the driver and the required clock support are added, add the device node for it. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 1d4e5bcced0c..6bc606b4d74d 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -409,5 +409,17 @@ #clock-cells = <1>; #reset-cells = <1>; }; + + r_pio: pinctrl@01f02c00 { + compatible = "allwinner,sun50i-a64-r-pinctrl"; + reg = <0x01f02c00 0x400>; + interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&r_ccu 3>, <&osc24M>, <&osc32k>; + clock-names = "apb", "hosc", "losc"; + gpio-controller; + #gpio-cells = <3>; + interrupt-controller; + #interrupt-cells = <3>; + }; }; }; -- 2.12.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs 2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng ` (4 preceding siblings ...) 2017-04-04 9:51 ` [PATCH v4 5/5] arm64: allwinner: a64: add R_PIO pinctrl node Icenowy Zheng @ 2017-04-04 15:45 ` Maxime Ripard 5 siblings, 0 replies; 11+ messages in thread From: Maxime Ripard @ 2017-04-04 15:45 UTC (permalink / raw) To: Icenowy Zheng Cc: Chen-Yu Tsai, Rob Herring, linux-clk, devicetree, linux-arm-kernel, linux-kernel, linux-sunxi [-- Attachment #1: Type: text/plain, Size: 713 bytes --] On Tue, Apr 04, 2017 at 05:50:55PM +0800, Icenowy Zheng wrote: > Allwinner SoCs after sun6i-a31 nearly all have a R_CCU in PRCM part. > (V3s and R40 do not have it, as they have even no PRCM) > > This patch adds support for the ones on H3/A64. > > Some clock/reset values are reserved for easier extending the support to > A31/A23, but for this I think some changes to the PRCM MFD should be made, > see [1] (Although this is only a sketch). > > The r_pio device node is also added for A64, as the driver is already > merged, and its depends (r_ccu) is now met. Applied all, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 801 bytes --] ^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2017-07-20 8:21 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
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2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 2/5] clk: sunxi-ng: add support for " Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 3/5] arm64: allwinner: a64: add r_ccu node Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu Icenowy Zheng
[not found] ` <1500505173.23770.1.camel@xff.cz>
2017-07-20 2:03 ` [linux-sunxi] " icenowy
2017-07-20 2:19 ` icenowy
2017-07-20 5:15 ` icenowy
2017-07-20 8:21 ` icenowy
2017-04-04 9:51 ` [PATCH v4 5/5] arm64: allwinner: a64: add R_PIO pinctrl node Icenowy Zheng
2017-04-04 15:45 ` [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Maxime Ripard
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