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Date: Sat, 29 Oct 2016 19:36:03 +0800
From: Hao Zhang <hao5781286@...il.com>
To: Jiancheng Xue <xuejiancheng@...ilicon.com>
Cc: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>, robh+dt@...nel.org,
Mark Rutland <mark.rutland@....com>,
open list <linux-kernel@...r.kernel.org>,
"open list:COMMON CLK FRAMEWORK" <linux-clk@...r.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>, bin.chen@...aro.org,
elder@...aro.org, hermit.wangheming@...ilicon.com,
yanhaifeng@...ilicon.com, wenpan@...ilicon.com,
howell.yang@...ilicon.com
Subject: Re: [PATCH 2/2] clk: hisilicon: add CRG driver for Hi3516CV300 SoC
Hi, is there any mainline kernel or uboot for hisilicon hi3520dv200 or
hi3520dv300? just want some base support to boot , anything close to
mainline is ok :)
2016-10-29 14:13 GMT+08:00 Jiancheng Xue <xuejiancheng@...ilicon.com>:
> Add CRG driver for Hi3516CV300 SoC. CRG(Clock and Reset
> Generator) module generates clock and reset signals used
> by other module blocks on SoC.
>
> Signed-off-by: Pan Wen <wenpan@...ilicon.com>
> ---
> drivers/clk/hisilicon/Kconfig | 8 +
> drivers/clk/hisilicon/Makefile | 1 +
> drivers/clk/hisilicon/crg-hi3516cv300.c | 330 ++++++++++++++++++++++++++
> include/dt-bindings/clock/hi3516cv300-clock.h | 48 ++++
> 4 files changed, 387 insertions(+)
> create mode 100644 drivers/clk/hisilicon/crg-hi3516cv300.c
> create mode 100644 include/dt-bindings/clock/hi3516cv300-clock.h
>
> diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig
> index c41b6d2..f80773b 100644
> --- a/drivers/clk/hisilicon/Kconfig
> +++ b/drivers/clk/hisilicon/Kconfig
> @@ -1,3 +1,11 @@
> +config COMMON_CLK_HI3516CV300
> + tristate "HI3516CV300 Clock Driver"
> + depends on ARCH_HISI || COMPILE_TEST
> + select RESET_HISI
> + default ARCH_HISI
> + help
> + Build the clock driver for hi3516cv300.
> +
> config COMMON_CLK_HI3519
> tristate "Hi3519 Clock Driver"
> depends on ARCH_HISI || COMPILE_TEST
> diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
> index 5819891..4eec5e5 100644
> --- a/drivers/clk/hisilicon/Makefile
> +++ b/drivers/clk/hisilicon/Makefile
> @@ -7,6 +7,7 @@ obj-y += clk.o clkgate-separated.o clkdivider-hi6220.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_HI3516CV300) += crg-hi3516cv300.o
> obj-$(CONFIG_COMMON_CLK_HI3519) += clk-hi3519.o
> obj-$(CONFIG_COMMON_CLK_HI3798CV200) += crg-hi3798cv200.o
> obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o
> diff --git a/drivers/clk/hisilicon/crg-hi3516cv300.c b/drivers/clk/hisilicon/crg-hi3516cv300.c
> new file mode 100644
> index 0000000..2007123
> --- /dev/null
> +++ b/drivers/clk/hisilicon/crg-hi3516cv300.c
> @@ -0,0 +1,330 @@
> +/*
> + * Hi3516CV300 Clock and Reset Generator Driver
> + *
> + * Copyright (c) 2016 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 <dt-bindings/clock/hi3516cv300-clock.h>
> +#include <linux/clk-provider.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/platform_device.h>
> +#include "clk.h"
> +#include "crg.h"
> +#include "reset.h"
> +
> +/* hi3516CV300 core CRG */
> +#define HI3516CV300_INNER_CLK_OFFSET 64
> +#define HI3516CV300_FIXED_3M 65
> +#define HI3516CV300_FIXED_6M 66
> +#define HI3516CV300_FIXED_24M 67
> +#define HI3516CV300_FIXED_49P5 68
> +#define HI3516CV300_FIXED_50M 69
> +#define HI3516CV300_FIXED_83P3M 70
> +#define HI3516CV300_FIXED_99M 71
> +#define HI3516CV300_FIXED_100M 72
> +#define HI3516CV300_FIXED_148P5M 73
> +#define HI3516CV300_FIXED_198M 74
> +#define HI3516CV300_FIXED_297M 75
> +#define HI3516CV300_UART_MUX 76
> +#define HI3516CV300_FMC_MUX 77
> +#define HI3516CV300_MMC0_MUX 78
> +#define HI3516CV300_MMC1_MUX 79
> +#define HI3516CV300_MMC2_MUX 80
> +#define HI3516CV300_MMC3_MUX 81
> +#define HI3516CV300_PWM_MUX 82
> +#define HI3516CV300_CRG_NR_CLKS 128
> +
> +static const struct hisi_fixed_rate_clock hi3516cv300_fixed_rate_clks[] = {
> + { HI3516CV300_FIXED_3M, "3m", NULL, 0, 3000000, },
> + { HI3516CV300_FIXED_6M, "6m", NULL, 0, 6000000, },
> + { HI3516CV300_FIXED_24M, "24m", NULL, 0, 24000000, },
> + { HI3516CV300_FIXED_49P5, "49.5m", NULL, 0, 49500000, },
> + { HI3516CV300_FIXED_50M, "50m", NULL, 0, 50000000, },
> + { HI3516CV300_FIXED_83P3M, "83.3m", NULL, 0, 83300000, },
> + { HI3516CV300_FIXED_99M, "99m", NULL, 0, 99000000, },
> + { HI3516CV300_FIXED_100M, "100m", NULL, 0, 100000000, },
> + { HI3516CV300_FIXED_148P5M, "148.5m", NULL, 0, 148500000, },
> + { HI3516CV300_FIXED_198M, "198m", NULL, 0, 198000000, },
> + { HI3516CV300_FIXED_297M, "297m", NULL, 0, 297000000, },
> + { HI3516CV300_APB_CLK, "apb", NULL, 0, 50000000, },
> +};
> +
> +static const char *const uart_mux_p[] = {"24m", "6m"};
> +static const char *const fmc_mux_p[] = {
> + "24m", "83.3m", "148.5m", "198m", "297m"
> +};
> +static const char *const mmc_mux_p[] = {"49.5m"};
> +static const char *const mmc2_mux_p[] = {"99m", "49.5m"};
> +static const char *const pwm_mux_p[] = {"3m", "50m", "24m", "24m"};
> +
> +static u32 uart_mux_table[] = {0, 1};
> +static u32 fmc_mux_table[] = {0, 1, 2, 3, 4};
> +static u32 mmc_mux_table[] = {0};
> +static u32 mmc2_mux_table[] = {0, 2};
> +static u32 pwm_mux_table[] = {0, 1, 2, 3};
> +
> +static const struct hisi_mux_clock hi3516cv300_mux_clks[] = {
> + { HI3516CV300_UART_MUX, "uart_mux", uart_mux_p, ARRAY_SIZE(uart_mux_p),
> + CLK_SET_RATE_PARENT, 0xe4, 19, 1, 0, uart_mux_table, },
> + { HI3516CV300_FMC_MUX, "fmc_mux", fmc_mux_p, ARRAY_SIZE(fmc_mux_p),
> + CLK_SET_RATE_PARENT, 0xc0, 2, 3, 0, fmc_mux_table, },
> + { HI3516CV300_MMC0_MUX, "mmc0_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
> + CLK_SET_RATE_PARENT, 0xc4, 4, 2, 0, mmc_mux_table, },
> + { HI3516CV300_MMC1_MUX, "mmc1_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
> + CLK_SET_RATE_PARENT, 0xc4, 12, 2, 0, mmc_mux_table, },
> + { HI3516CV300_MMC2_MUX, "mmc2_mux", mmc2_mux_p, ARRAY_SIZE(mmc2_mux_p),
> + CLK_SET_RATE_PARENT, 0xc4, 20, 2, 0, mmc2_mux_table, },
> + { HI3516CV300_MMC3_MUX, "mmc3_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
> + CLK_SET_RATE_PARENT, 0xc8, 4, 2, 0, mmc_mux_table, },
> + { HI3516CV300_PWM_MUX, "pwm_mux", pwm_mux_p, ARRAY_SIZE(pwm_mux_p),
> + CLK_SET_RATE_PARENT, 0x38, 2, 2, 0, pwm_mux_table, },
> +};
> +
> +static const struct hisi_gate_clock hi3516cv300_gate_clks[] = {
> +
> + { HI3516CV300_UART0_CLK, "clk_uart0", "uart_mux", CLK_SET_RATE_PARENT,
> + 0xe4, 15, 0, },
> + { HI3516CV300_UART1_CLK, "clk_uart1", "uart_mux", CLK_SET_RATE_PARENT,
> + 0xe4, 16, 0, },
> + { HI3516CV300_UART2_CLK, "clk_uart2", "uart_mux", CLK_SET_RATE_PARENT,
> + 0xe4, 17, 0, },
> +
> + { HI3516CV300_SPI0_CLK, "clk_spi0", "100m", CLK_SET_RATE_PARENT,
> + 0xe4, 13, 0, },
> + { HI3516CV300_SPI1_CLK, "clk_spi1", "100m", CLK_SET_RATE_PARENT,
> + 0xe4, 14, 0, },
> +
> + { HI3516CV300_FMC_CLK, "clk_fmc", "fmc_mux", CLK_SET_RATE_PARENT,
> + 0xc0, 1, 0, },
> + { HI3516CV300_MMC0_CLK, "clk_mmc0", "mmc0_mux", CLK_SET_RATE_PARENT,
> + 0xc4, 1, 0, },
> + { HI3516CV300_MMC1_CLK, "clk_mmc1", "mmc1_mux", CLK_SET_RATE_PARENT,
> + 0xc4, 9, 0, },
> + { HI3516CV300_MMC2_CLK, "clk_mmc2", "mmc2_mux", CLK_SET_RATE_PARENT,
> + 0xc4, 17, 0, },
> + { HI3516CV300_MMC3_CLK, "clk_mmc3", "mmc3_mux", CLK_SET_RATE_PARENT,
> + 0xc8, 1, 0, },
> +
> + { HI3516CV300_ETH_CLK, "clk_eth", NULL, 0, 0xec, 1, 0, },
> +
> + { HI3516CV300_DMAC_CLK, "clk_dmac", NULL, 0, 0xd8, 5, 0, },
> + { HI3516CV300_PWM_CLK, "clk_pwm", "pwm_mux", CLK_SET_RATE_PARENT,
> + 0x38, 1, 0, },
> +
> + { HI3516CV300_USB2_BUS_CLK, "clk_usb2_bus", NULL, 0, 0xb8, 0, 0, },
> + { HI3516CV300_USB2_OHCI48M_CLK, "clk_usb2_ohci48m", NULL, 0,
> + 0xb8, 1, 0, },
> + { HI3516CV300_USB2_OHCI12M_CLK, "clk_usb2_ohci12m", NULL, 0,
> + 0xb8, 2, 0, },
> + { HI3516CV300_USB2_OTG_UTMI_CLK, "clk_usb2_otg_utmi", NULL, 0,
> + 0xb8, 3, 0, },
> + { HI3516CV300_USB2_HST_PHY_CLK, "clk_usb2_hst_phy", NULL, 0,
> + 0xb8, 4, 0, },
> + { HI3516CV300_USB2_UTMI0_CLK, "clk_usb2_utmi0", NULL, 0, 0xb8, 5, 0, },
> + { HI3516CV300_USB2_PHY_CLK, "clk_usb2_phy", NULL, 0, 0xb8, 7, 0, },
> +};
> +
> +static struct hisi_clock_data *hi3516cv300_clk_register(
> + struct platform_device *pdev)
> +{
> + struct hisi_clock_data *clk_data;
> + int ret;
> +
> + clk_data = hisi_clk_alloc(pdev, HI3516CV300_CRG_NR_CLKS);
> + if (!clk_data)
> + return ERR_PTR(-ENOMEM);
> +
> + ret = hisi_clk_register_fixed_rate(hi3516cv300_fixed_rate_clks,
> + ARRAY_SIZE(hi3516cv300_fixed_rate_clks), clk_data);
> + if (ret)
> + return ERR_PTR(ret);
> +
> + ret = hisi_clk_register_mux(hi3516cv300_mux_clks,
> + ARRAY_SIZE(hi3516cv300_mux_clks), clk_data);
> + if (ret)
> + goto unregister_fixed_rate;
> +
> + ret = hisi_clk_register_gate(hi3516cv300_gate_clks,
> + ARRAY_SIZE(hi3516cv300_gate_clks), clk_data);
> + if (ret)
> + goto unregister_mux;
> +
> + ret = of_clk_add_provider(pdev->dev.of_node,
> + of_clk_src_onecell_get, &clk_data->clk_data);
> + if (ret)
> + goto unregister_gate;
> +
> + return clk_data;
> +
> +unregister_gate:
> + hisi_clk_unregister_gate(hi3516cv300_gate_clks,
> + ARRAY_SIZE(hi3516cv300_gate_clks), clk_data);
> +unregister_mux:
> + hisi_clk_unregister_mux(hi3516cv300_mux_clks,
> + ARRAY_SIZE(hi3516cv300_mux_clks), clk_data);
> +unregister_fixed_rate:
> + hisi_clk_unregister_fixed_rate(hi3516cv300_fixed_rate_clks,
> + ARRAY_SIZE(hi3516cv300_fixed_rate_clks), clk_data);
> + return ERR_PTR(ret);
> +}
> +
> +static void hi3516cv300_clk_unregister(struct platform_device *pdev)
> +{
> + struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
> +
> + of_clk_del_provider(pdev->dev.of_node);
> +
> + hisi_clk_unregister_gate(hi3516cv300_gate_clks,
> + ARRAY_SIZE(hi3516cv300_gate_clks), crg->clk_data);
> + hisi_clk_unregister_mux(hi3516cv300_mux_clks,
> + ARRAY_SIZE(hi3516cv300_mux_clks), crg->clk_data);
> + hisi_clk_unregister_fixed_rate(hi3516cv300_fixed_rate_clks,
> + ARRAY_SIZE(hi3516cv300_fixed_rate_clks), crg->clk_data);
> +}
> +
> +static const struct hisi_crg_funcs hi3516cv300_crg_funcs = {
> + .register_clks = hi3516cv300_clk_register,
> + .unregister_clks = hi3516cv300_clk_unregister,
> +};
> +
> +/* hi3516CV300 sysctrl CRG */
> +#define HI3516CV300_SYSCTRL_NR_CLKS 16
> +
> +static const char *wdt_mux_p[] __initconst = { "3m", "apb" };
> +static u32 wdt_mux_table[] = {0, 1};
> +
> +static const struct hisi_mux_clock hi3516cv300_sysctrl_mux_clks[] = {
> + { HI3516CV300_WDT_CLK, "wdt", wdt_mux_p, ARRAY_SIZE(wdt_mux_p),
> + CLK_SET_RATE_PARENT, 0x0, 23, 1, 0, wdt_mux_table, },
> +};
> +
> +static struct hisi_clock_data *hi3516cv300_sysctrl_clk_register(
> + struct platform_device *pdev)
> +{
> + struct hisi_clock_data *clk_data;
> + int ret;
> +
> + clk_data = hisi_clk_alloc(pdev, HI3516CV300_SYSCTRL_NR_CLKS);
> + if (!clk_data)
> + return ERR_PTR(-ENOMEM);
> +
> + ret = hisi_clk_register_mux(hi3516cv300_sysctrl_mux_clks,
> + ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks), clk_data);
> + if (ret)
> + return ERR_PTR(ret);
> +
> +
> + ret = of_clk_add_provider(pdev->dev.of_node,
> + of_clk_src_onecell_get, &clk_data->clk_data);
> + if (ret)
> + goto unregister_mux;
> +
> + return clk_data;
> +
> +unregister_mux:
> + hisi_clk_unregister_mux(hi3516cv300_sysctrl_mux_clks,
> + ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks), clk_data);
> + return ERR_PTR(ret);
> +}
> +
> +static void hi3516cv300_sysctrl_clk_unregister(struct platform_device *pdev)
> +{
> + struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
> +
> + of_clk_del_provider(pdev->dev.of_node);
> +
> + hisi_clk_unregister_mux(hi3516cv300_sysctrl_mux_clks,
> + ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks),
> + crg->clk_data);
> +}
> +
> +static const struct hisi_crg_funcs hi3516cv300_sysctrl_funcs = {
> + .register_clks = hi3516cv300_sysctrl_clk_register,
> + .unregister_clks = hi3516cv300_sysctrl_clk_unregister,
> +};
> +
> +static const struct of_device_id hi3516cv300_crg_match_table[] = {
> + {
> + .compatible = "hisilicon,hi3516cv300-crg",
> + .data = &hi3516cv300_crg_funcs
> + },
> + {
> + .compatible = "hisilicon,hi3516cv300-sysctrl",
> + .data = &hi3516cv300_sysctrl_funcs
> + },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, hi3516cv300_crg_match_table);
> +
> +static int hi3516cv300_crg_probe(struct platform_device *pdev)
> +{
> + struct hisi_crg_dev *crg;
> +
> + crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
> + if (!crg)
> + return -ENOMEM;
> +
> + crg->funcs = of_device_get_match_data(&pdev->dev);
> + if (!crg->funcs)
> + return -ENOENT;
> +
> + crg->rstc = hisi_reset_init(pdev);
> + if (!crg->rstc)
> + return -ENOMEM;
> +
> + crg->clk_data = crg->funcs->register_clks(pdev);
> + if (IS_ERR(crg->clk_data)) {
> + hisi_reset_exit(crg->rstc);
> + return PTR_ERR(crg->clk_data);
> + }
> +
> + platform_set_drvdata(pdev, crg);
> + return 0;
> +}
> +
> +static int hi3516cv300_crg_remove(struct platform_device *pdev)
> +{
> + struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
> +
> + hisi_reset_exit(crg->rstc);
> + crg->funcs->unregister_clks(pdev);
> + return 0;
> +}
> +
> +static struct platform_driver hi3516cv300_crg_driver = {
> + .probe = hi3516cv300_crg_probe,
> + .remove = hi3516cv300_crg_remove,
> + .driver = {
> + .name = "hi3516cv300-crg",
> + .of_match_table = hi3516cv300_crg_match_table,
> + },
> +};
> +
> +static int __init hi3516cv300_crg_init(void)
> +{
> + return platform_driver_register(&hi3516cv300_crg_driver);
> +}
> +core_initcall(hi3516cv300_crg_init);
> +
> +static void __exit hi3516cv300_crg_exit(void)
> +{
> + platform_driver_unregister(&hi3516cv300_crg_driver);
> +}
> +module_exit(hi3516cv300_crg_exit);
> +
> +MODULE_LICENSE("GPL v2");
> +MODULE_DESCRIPTION("HiSilicon Hi3516CV300 CRG Driver");
> diff --git a/include/dt-bindings/clock/hi3516cv300-clock.h b/include/dt-bindings/clock/hi3516cv300-clock.h
> new file mode 100644
> index 0000000..5ba51b8
> --- /dev/null
> +++ b/include/dt-bindings/clock/hi3516cv300-clock.h
> @@ -0,0 +1,48 @@
> +/*
> + * Copyright (c) 2016 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_HI3516CV300_CLOCK_H
> +#define __DTS_HI3516CV300_CLOCK_H
> +
> +/* hi3516CV300 core CRG */
> +#define HI3516CV300_APB_CLK 0
> +#define HI3516CV300_UART0_CLK 1
> +#define HI3516CV300_UART1_CLK 2
> +#define HI3516CV300_UART2_CLK 3
> +#define HI3516CV300_SPI0_CLK 4
> +#define HI3516CV300_SPI1_CLK 5
> +#define HI3516CV300_FMC_CLK 6
> +#define HI3516CV300_MMC0_CLK 7
> +#define HI3516CV300_MMC1_CLK 8
> +#define HI3516CV300_MMC2_CLK 9
> +#define HI3516CV300_MMC3_CLK 10
> +#define HI3516CV300_ETH_CLK 11
> +#define HI3516CV300_ETH_MACIF_CLK 12
> +#define HI3516CV300_DMAC_CLK 13
> +#define HI3516CV300_PWM_CLK 14
> +#define HI3516CV300_USB2_BUS_CLK 15
> +#define HI3516CV300_USB2_OHCI48M_CLK 16
> +#define HI3516CV300_USB2_OHCI12M_CLK 17
> +#define HI3516CV300_USB2_OTG_UTMI_CLK 18
> +#define HI3516CV300_USB2_HST_PHY_CLK 19
> +#define HI3516CV300_USB2_UTMI0_CLK 20
> +#define HI3516CV300_USB2_PHY_CLK 21
> +
> +/* hi3516CV300 sysctrl CRG */
> +#define HI3516CV300_WDT_CLK 1
> +
> +#endif /* __DTS_HI3516CV300_CLOCK_H */
> --
> 1.9.1
>
> --
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