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Message-ID: <568BB99B.7090102@huawei.com>
Date: Tue, 5 Jan 2016 20:39:55 +0800
From: xuejiancheng <xuejiancheng@...wei.com>
To: Michael Turquette <mturquette@...libre.com>
CC: <sboyd@...eaurora.org>, <robh+dt@...nel.org>, <pawel.moll@....com>,
<mark.rutland@....com>, <ijc+devicetree@...lion.org.uk>,
<galak@...eaurora.org>, <linux@....linux.org.uk>,
<khilman@...aro.org>, <arnd@...db.de>, <olof@...om.net>,
<xuwei5@...ilicon.com>, <haojian.zhuang@...aro.org>,
<zhangfei.gao@...aro.org>, <bintian.wang@...wei.com>,
<linux-kernel@...r.kernel.org>, <linux-clk@...r.kernel.org>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <yanhaifeng@...ilicon.com>,
<yanghongwei@...ilicon.com>, <suwenping@...ilicon.com>,
<ml.yang@...ilicon.com>, <gaofei@...ilicon.com>,
<zhangzhenxing@...ilicon.com>, <p.zabel@...gutronix.de>
Subject: Re: [PATCH v4 1/6] clk: hisilicon: add CRG driver for hi3519 soc
Hi Mikeļ¼
I am sorry. I have to correct my answer about using CLK_OF_DECLARE.
On 2016/1/5 15:21, xuejiancheng wrote:
> Hi Mike,
> Happy new year to you!
> Thank you for taking time to reply.
>
> On 2015/12/31 8:23, Michael Turquette wrote:
>> Hello Jiancheng Xue,
>>
>> Quoting Jiancheng Xue (2015-12-29 17:43:47)
>>> The CRG(Clock and Reset Generator) block provides clock
>>> and reset signals for other modules in hi3519 soc.
>>>
>>> Signed-off-by: Jiancheng Xue <xuejiancheng@...wei.com>
>>> ---
>>> .../devicetree/bindings/clock/hi3519-crg.txt | 46 +++++++
>>> drivers/clk/hisilicon/Kconfig | 7 +
>>> drivers/clk/hisilicon/Makefile | 2 +
>>> drivers/clk/hisilicon/clk-hi3519.c | 103 ++++++++++++++
>>> drivers/clk/hisilicon/reset.c | 149 +++++++++++++++++++++
>>> drivers/clk/hisilicon/reset.h | 32 +++++
>>> include/dt-bindings/clock/hi3519-clock.h | 43 ++++++
>>> 7 files changed, 382 insertions(+)
>>> create mode 100644 Documentation/devicetree/bindings/clock/hi3519-crg.txt
>>> create mode 100644 drivers/clk/hisilicon/clk-hi3519.c
>>> create mode 100644 drivers/clk/hisilicon/reset.c
>>> create mode 100644 drivers/clk/hisilicon/reset.h
>>> create mode 100644 include/dt-bindings/clock/hi3519-clock.h
>>
>> Please keep Philipp Zabel Cc'd for reset-related patches. I've added
>> him to Cc.
>>
> OK.
>
>>>
>>> diff --git a/Documentation/devicetree/bindings/clock/hi3519-crg.txt b/Documentation/devicetree/bindings/clock/hi3519-crg.txt
>>> new file mode 100644
>>> index 0000000..2d23950
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/clock/hi3519-crg.txt
>>> @@ -0,0 +1,46 @@
>>> +* Hisilicon Hi3519 Clock and Reset Generator(CRG)
>>> +
>>> +The Hi3519 CRG module provides clock and reset signals to various
>>> +controllers within the SoC.
>>> +
>>> +This binding uses the following bindings:
>>> + Documentation/devicetree/bindings/clock/clock-bindings.txt
>>> + Documentation/devicetree/bindings/reset/reset.txt
>>> +
>>> +Required Properties:
>>> +
>>> +- compatible: should be one of the following.
>>> + - "hisilicon,hi3519-crg" - controller compatible with Hi3519 SoC.
>>> +
>>> +- reg: physical base address of the controller and length of memory mapped
>>> + region.
>>> +
>>> +- #clock-cells: should be 1.
>>> +
>>> +Each clock is assigned an identifier and client nodes use this identifier
>>> +to specify the clock which they consume.
>>> +
>>> +All these identifier could be found in <dt-bindings/clock/hi3519-clock.h>.
>>> +
>>> +- #reset-cells: should be 2.
>>> +
>>> +A reset signal can be controlled by writing a bit register in the CRG module.
>>> +The reset specifier consists of two cells. The first cell represents the
>>> +register offset relative to the base address. The second cell represents the
>>> +bit index in the register.
>>> +
>>> +Example: CRG nodes
>>> +CRG: clock-reset-controller@...10000 {
>>> + compatible = "hisilicon,hi3519-crg";
>>> + reg = <0x12010000 0x10000>;
>>> + #clock-cells = <1>;
>>> + #reset-cells = <2>;
>>> +};
>>> +
>>> +Example: consumer nodes
>>> +i2c0: i2c@...10000 {
>>> + compatible = "hisilicon,hi3519-i2c";
>>> + reg = <0x12110000 0x1000>;
>>> + clocks = <&CRG HI3519_I2C0_RST>;*/
>>> + resets = <&CRG 0xe4 0>;
>>> +};
>>> diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig
>>> index e434854..b6baebf 100644
>>> --- a/drivers/clk/hisilicon/Kconfig
>>> +++ b/drivers/clk/hisilicon/Kconfig
>>> @@ -1,3 +1,10 @@
>>> +config COMMON_CLK_HI3519
>>> + tristate "Clock Driver for Hi3519"
>>> + depends on ARCH_HISI
>>> + default y
>>> + help
>>> + Build the clock driver for hi3519.
>>> +
>>> config COMMON_CLK_HI6220
>>> bool "Hi6220 Clock Driver"
>>> depends on ARCH_HISI || COMPILE_TEST
>>> diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
>>> index 74dba31..3f57b09 100644
>>> --- a/drivers/clk/hisilicon/Makefile
>>> +++ b/drivers/clk/hisilicon/Makefile
>>> @@ -4,8 +4,10 @@
>>>
>>> obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o
>>>
>>> +obj-$(CONFIG_RESET_CONTROLLER) += reset.o
>>> obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o
>>> obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o
>>> obj-$(CONFIG_ARCH_HIX5HD2) += clk-hix5hd2.o
>>> obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o
>>> obj-$(CONFIG_STUB_CLK_HI6220) += clk-hi6220-stub.o
>>> +obj-$(CONFIG_COMMON_CLK_HI3519) += clk-hi3519.o
>>> diff --git a/drivers/clk/hisilicon/clk-hi3519.c b/drivers/clk/hisilicon/clk-hi3519.c
>>> new file mode 100644
>>> index 0000000..e220234
>>> --- /dev/null
>>> +++ b/drivers/clk/hisilicon/clk-hi3519.c
>>> @@ -0,0 +1,103 @@
>>> +/*
>>> + * Copyright (c) 2015 HiSilicon Technologies Co., Ltd.
>>> + *
>>> + * 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.
>>> + *
>>> + * You should have received a copy of the GNU General Public License
>>> + * along with this program. If not, see <http://www.gnu.org/licenses/>.
>>> + */
>>> +
>>> +#include <linux/of_address.h>
>>> +#include <dt-bindings/clock/hi3519-clock.h>
>>> +#include <linux/slab.h>
>>> +#include <linux/delay.h>
>>> +#include "clk.h"
>>> +#include "reset.h"
>>> +
>>> +#define HI3519_FIXED_24M (HI3519_EXT_CLKS + 1)
>>> +#define HI3519_FIXED_50M (HI3519_EXT_CLKS + 2)
>>> +#define HI3519_FIXED_75M (HI3519_EXT_CLKS + 3)
>>> +#define HI3519_FIXED_125M (HI3519_EXT_CLKS + 4)
>>> +#define HI3519_FIXED_150M (HI3519_EXT_CLKS + 5)
>>> +#define HI3519_FIXED_200M (HI3519_EXT_CLKS + 6)
>>> +#define HI3519_FIXED_250M (HI3519_EXT_CLKS + 7)
>>> +#define HI3519_FIXED_300M (HI3519_EXT_CLKS + 8)
>>> +#define HI3519_FIXED_400M (HI3519_EXT_CLKS + 9)
>>> +#define HI3519_FMC_MUX (HI3519_EXT_CLKS + 10)
>>> +
>>> +#define HI3519_NR_CLKS 128
>>> +#define HI3519_NR_RSTS 128
>>> +
>>> +static struct hisi_fixed_rate_clock hi3519_fixed_rate_clks[] __initdata = {
>>> + { HI3519_FIXED_3M, "3m", NULL, CLK_IS_ROOT, 3000000, },
>>> + { HI3519_FIXED_24M, "24m", NULL, CLK_IS_ROOT, 24000000, },
>>> + { HI3519_FIXED_50M, "50m", NULL, CLK_IS_ROOT, 50000000, },
>>> + { HI3519_FIXED_75M, "75m", NULL, CLK_IS_ROOT, 75000000, },
>>> + { HI3519_FIXED_125M, "125m", NULL, CLK_IS_ROOT, 125000000, },
>>> + { HI3519_FIXED_150M, "150m", NULL, CLK_IS_ROOT, 150000000, },
>>> + { HI3519_FIXED_200M, "200m", NULL, CLK_IS_ROOT, 200000000, },
>>> + { HI3519_FIXED_250M, "250m", NULL, CLK_IS_ROOT, 250000000, },
>>> + { HI3519_FIXED_300M, "300m", NULL, CLK_IS_ROOT, 300000000, },
>>> + { HI3519_FIXED_400M, "400m", NULL, CLK_IS_ROOT, 400000000, },
>>> +};
>>> +
>>> +static const char *fmc_mux_p[] __initconst = {
>>> + "24m", "75m", "125m", "150m", "200m", "250m", "300m", "400m", };
>>> +static u32 fmc_mux_table[] = {0, 1, 2, 3, 4, 5, 6, 7};
>>> +
>>> +static struct hisi_mux_clock hi3519_mux_clks[] __initdata = {
>>> + { HI3519_FMC_MUX, "fmc_mux", fmc_mux_p, ARRAY_SIZE(fmc_mux_p),
>>> + CLK_SET_RATE_PARENT, 0xc0, 2, 3, 0, fmc_mux_table, },
>>> +};
>>> +
>>> +static struct hisi_gate_clock hi3519_gate_clks[] __initdata = {
>>> + /* fmc */
>>> + { HI3519_FMC_CLK, "clk_fmc", "fmc_mux",
>>> + CLK_SET_RATE_PARENT, 0xc0, 1, 0, },
>>> + /* uart */
>>> + { HI3519_UART0_CLK, "clk_uart0", "24m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 20, 0, },
>>> + { HI3519_UART1_CLK, "clk_uart1", "24m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 21, 0, },
>>> + { HI3519_UART2_CLK, "clk_uart2", "24m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 22, 0, },
>>> + { HI3519_UART3_CLK, "clk_uart3", "24m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 23, 0, },
>>> + { HI3519_UART4_CLK, "clk_uart4", "24m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 24, 0, },
>>> + { HI3519_SPI0_CLK, "clk_spi0", "50m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 16, 0, },
>>> + { HI3519_SPI1_CLK, "clk_spi1", "50m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 17, 0, },
>>> + { HI3519_SPI2_CLK, "clk_spi2", "50m",
>>> + CLK_SET_RATE_PARENT, 0xe4, 18, 0, },
>>> +};
>>> +
>>> +static void __init hi3519_clk_init(struct device_node *np)
>>> +{
>>> + struct hisi_clock_data *clk_data;
>>> +
>>> + clk_data = hisi_clk_init(np, HI3519_NR_CLKS);
>>> + if (!clk_data)
>>> + return;
>>> +
>>> + hisi_reset_init(np, HI3519_NR_RSTS);
>>> +
>>> + hisi_clk_register_fixed_rate(hi3519_fixed_rate_clks,
>>> + ARRAY_SIZE(hi3519_fixed_rate_clks),
>>> + clk_data);
>>> + hisi_clk_register_mux(hi3519_mux_clks, ARRAY_SIZE(hi3519_mux_clks),
>>> + clk_data);
>>> + hisi_clk_register_gate(hi3519_gate_clks,
>>> + ARRAY_SIZE(hi3519_gate_clks), clk_data);
>>> +}
>>> +
>>> +CLK_OF_DECLARE(hi3519_clk, "hisilicon,hi3519-crg", hi3519_clk_init);
>>
>> Is CLK_OF_DECLARE required here? Why do you need to register these
>> clocks so early?
>>
>> Can this be a real platform driver instead? See,
>>
>> grep platform_driver drivers/clk/qcom/*.c
>>
>> Regards,
>> Mike
>>
>
> It's OK to realize this as a real platform driver. I'll modify it in next version.
Sorry. CLK_OF_DECLARE is required. Because the timer clock is needed
when clocksource_probe() called in time_init.
time_init->clocksource_probe->sp804_of_init
>
> More comments will be appreciated.
> Thank you.
>
> Jiancheng
>
>>> diff --git a/drivers/clk/hisilicon/reset.c b/drivers/clk/hisilicon/reset.c
>>> new file mode 100644
>>> index 0000000..cf5c32a
>>> --- /dev/null
>>> +++ b/drivers/clk/hisilicon/reset.c
>>> @@ -0,0 +1,149 @@
>>> +/*
>>> + * Hisilicon Reset Controller driver
>>> + *
>>> + * Copyright (c) 2015 HiSilicon Technologies Co., Ltd.
>>> + *
>>> + * 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.
>>> + *
>>> + * You should have received a copy of the GNU General Public License
>>> + * along with this program. If not, see <http://www.gnu.org/licenses/>.
>>> + */
>>> +
>>> +#include <linux/err.h>
>>> +#include <linux/io.h>
>>> +#include <linux/module.h>
>>> +#include <linux/of.h>
>>> +#include <linux/of_address.h>
>>> +#include <linux/of_platform.h>
>>> +#include <linux/platform_device.h>
>>> +#include <linux/reset-controller.h>
>>> +#include <linux/slab.h>
>>> +#include <linux/spinlock.h>
>>> +#include <linux/types.h>
>>> +
>>> +#define HISI_RESET_BIT_SHIFT 0
>>> +#define HISI_RESET_BIT_WIDTH 16
>>> +#define HISI_RESET_OFFSET_SHIFT 16
>>> +#define HISI_RESET_OFFSET_WIDTH 16
>>> +
>>> +struct hisi_reset_controller {
>>> + spinlock_t lock;
>>> + void __iomem *membase;
>>> + struct reset_controller_dev rcdev;
>>> +};
>>> +
>>> +
>>> +#define to_hisi_reset_controller(rcdev) \
>>> + container_of(rcdev, struct hisi_reset_controller, rcdev)
>>> +
>>> +/*31 16 0
>>> + * |---reset_spec->args[0]---|---reset_spec->args[1]---|
>>> + * |-------reg_offset--------|--------reg_bit----------|
>>> + */
>>> +static int hisi_reset_of_xlate(struct reset_controller_dev *rcdev,
>>> + const struct of_phandle_args *reset_spec)
>>> +{
>>> + unsigned int offset, bit, id;
>>> + const __be32 *addr;
>>> + u64 size;
>>> +
>>> + if (WARN_ON(reset_spec->args_count != rcdev->of_reset_n_cells))
>>> + return -EINVAL;
>>> +
>>> + addr = of_get_address(rcdev->of_node, 0, &size, NULL);
>>> + if (!addr)
>>> + return -EINVAL;
>>> +
>>> + if (reset_spec->args[1] >= 32
>>> + || reset_spec->args[0] + reset_spec->args[1] / 8 > size)
>>> + return -EINVAL;
>>> +
>>> + offset = reset_spec->args[0] & (BIT(HISI_RESET_OFFSET_WIDTH) - 1);
>>> + bit = (reset_spec->args[1] & (BIT(HISI_RESET_BIT_WIDTH) - 1));
>>> + id = offset << HISI_RESET_OFFSET_SHIFT | bit;
>>> +
>>> + return id;
>>> +}
>>> +
>>> +static int hisi_reset_assert(struct reset_controller_dev *rcdev,
>>> + unsigned long id)
>>> +{
>>> + struct hisi_reset_controller *rstc = to_hisi_reset_controller(rcdev);
>>> + unsigned int offset, bit;
>>> + unsigned long flags;
>>> + u32 reg;
>>> +
>>> + offset = id >> HISI_RESET_OFFSET_SHIFT;
>>> + offset &= (BIT(HISI_RESET_OFFSET_WIDTH) - 1);
>>> + bit = id & (BIT(HISI_RESET_BIT_WIDTH) - 1);
>>> +
>>> + spin_lock_irqsave(&rstc->lock, flags);
>>> +
>>> + reg = readl(rstc->membase + offset);
>>> + writel(reg | BIT(bit), rstc->membase + offset);
>>> +
>>> + spin_unlock_irqrestore(&rstc->lock, flags);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int hisi_reset_deassert(struct reset_controller_dev *rcdev,
>>> + unsigned long id)
>>> +{
>>> + struct hisi_reset_controller *rstc = to_hisi_reset_controller(rcdev);
>>> + unsigned int offset, bit;
>>> + unsigned long flags;
>>> + u32 reg;
>>> +
>>> + offset = id >> HISI_RESET_OFFSET_SHIFT;
>>> + offset &= (BIT(HISI_RESET_OFFSET_WIDTH) - 1);
>>> + bit = id & (BIT(HISI_RESET_BIT_WIDTH) - 1);
>>> +
>>> + spin_lock_irqsave(&rstc->lock, flags);
>>> +
>>> + reg = readl(rstc->membase + offset);
>>> + writel(reg & ~BIT(bit), rstc->membase + offset);
>>> +
>>> + spin_unlock_irqrestore(&rstc->lock, flags);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static struct reset_control_ops hisi_reset_ops = {
>>> + .assert = hisi_reset_assert,
>>> + .deassert = hisi_reset_deassert,
>>> +};
>>> +
>>> +int __init hisi_reset_init(struct device_node *np,
>>> + int nr_rsts)
>>> +{
>>> + struct hisi_reset_controller *rstc;
>>> +
>>> + rstc = kzalloc(sizeof(*rstc), GFP_KERNEL);
>>> + if (!rstc)
>>> + return -ENOMEM;
>>> +
>>> + rstc->membase = of_iomap(np, 0);
>>> + if (!rstc->membase)
>>> + return -EINVAL;
>>> +
>>> + spin_lock_init(&rstc->lock);
>>> +
>>> + rstc->rcdev.owner = THIS_MODULE;
>>> + rstc->rcdev.nr_resets = nr_rsts;
>>> + rstc->rcdev.ops = &hisi_reset_ops;
>>> + rstc->rcdev.of_node = np;
>>> + rstc->rcdev.of_reset_n_cells = 2;
>>> + rstc->rcdev.of_xlate = hisi_reset_of_xlate;
>>> +
>>> + return reset_controller_register(&rstc->rcdev);
>>> +}
>>> +
>>> diff --git a/drivers/clk/hisilicon/reset.h b/drivers/clk/hisilicon/reset.h
>>> new file mode 100644
>>> index 0000000..b04796f
>>> --- /dev/null
>>> +++ b/drivers/clk/hisilicon/reset.h
>>> @@ -0,0 +1,32 @@
>>> +/*
>>> + * Copyright (c) 2015 HiSilicon Technologies Co., Ltd.
>>> + *
>>> + * 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.
>>> + *
>>> + * You should have received a copy of the GNU General Public License
>>> + * along with this program. If not, see <http://www.gnu.org/licenses/>.
>>> + */
>>> +
>>> +#ifndef __HISI_RESET_H
>>> +#define __HISI_RESET_H
>>> +
>>> +#include <linux/of.h>
>>> +
>>> +#ifdef CONFIG_RESET_CONTROLLER
>>> +int __init hisi_reset_init(struct device_node *np, int nr_rsts);
>>> +#else
>>> +static inline int __init hisi_reset_init(struct device_node *np, int nr_rsts)
>>> +{
>>> + return 0;
>>> +}
>>> +#endif
>>> +
>>> +#endif /* __HISI_RESET_H */
>>> diff --git a/include/dt-bindings/clock/hi3519-clock.h b/include/dt-bindings/clock/hi3519-clock.h
>>> new file mode 100644
>>> index 0000000..1e4a3c1
>>> --- /dev/null
>>> +++ b/include/dt-bindings/clock/hi3519-clock.h
>>> @@ -0,0 +1,43 @@
>>> +/*
>>> + * Copyright (c) 2015 HiSilicon Technologies Co., Ltd.
>>> + *
>>> + * 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.
>>> + *
>>> + * You should have received a copy of the GNU General Public License
>>> + * along with this program. If not, see <http://www.gnu.org/licenses/>.
>>> + */
>>> +
>>> +#ifndef __DTS_HI3519_CLOCK_H
>>> +#define __DTS_HI3519_CLOCK_H
>>> +
>>> +#define HI3519_FIXED_3M 1
>>> +#define HI3519_FMC_CLK 2
>>> +#define HI3519_USB2_BUS_CLK 3
>>> +#define HI3519_USB2_PORT_CLK 4
>>> +#define HI3519_USB3_CLK 5
>>> +#define HI3519_ETH_PHY_CLK 6
>>> +#define HI3519_ETH_MAC_CLK 7
>>> +#define HI3519_ETH_MACIF_CLK 8
>>> +#define HI3519_PWM_CLK 9
>>> +#define HI3519_DMA_CLK 10
>>> +#define HI3519_SPI0_CLK 11
>>> +#define HI3519_SPI1_CLK 12
>>> +#define HI3519_SPI2_CLK 13
>>> +#define HI3519_IR_CLK 14
>>> +#define HI3519_UART0_CLK 15
>>> +#define HI3519_UART1_CLK 16
>>> +#define HI3519_UART2_CLK 17
>>> +#define HI3519_UART3_CLK 18
>>> +#define HI3519_UART4_CLK 19
>>> +
>>> +#define HI3519_EXT_CLKS 19
>>> +
>>> +#endif /* __DTS_HI3519_CLOCK_H */
>>> --
>>> 1.9.1
>>>
>>> --
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>>
>> .
>>
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