From patchwork Fri Oct 21 01:37:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiancheng Xue X-Patchwork-Id: 78582 Delivered-To: patch@linaro.org Received: by 10.140.97.247 with SMTP id m110csp1071410qge; Thu, 20 Oct 2016 18:57:10 -0700 (PDT) X-Received: by 10.99.102.69 with SMTP id a66mr5414203pgc.71.1477015030237; Thu, 20 Oct 2016 18:57:10 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id c6si228829pga.254.2016.10.20.18.57.09; Thu, 20 Oct 2016 18:57:10 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754025AbcJUB5H (ORCPT + 7 others); Thu, 20 Oct 2016 21:57:07 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:55032 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753553AbcJUB5G (ORCPT ); Thu, 20 Oct 2016 21:57:06 -0400 Received: from 172.24.1.60 (EHLO szxeml422-hub.china.huawei.com) ([172.24.1.60]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DPE05216; Fri, 21 Oct 2016 09:53:40 +0800 (CST) Received: from wind-Tecal-RH2285.huawei.com (10.67.212.71) by szxeml422-hub.china.huawei.com (10.82.67.152) with Microsoft SMTP Server id 14.3.235.1; Fri, 21 Oct 2016 09:53:32 +0800 From: Jiancheng Xue To: , , , CC: , , , , , , , Subject: [RESEND PATCH v2] clk: hisilicon: add CRG driver for Hi3798CV200 SoC Date: Fri, 21 Oct 2016 09:37:10 +0800 Message-ID: <1477013830-11481-1-git-send-email-xuejiancheng@hisilicon.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.67.212.71] X-CFilter-Loop: Reflected Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add CRG driver for Hi3798CV200 SoC. CRG(Clock and Reset Generator) module generates clock and reset signals used by other module blocks on SoC. Signed-off-by: Jiancheng Xue --- change log v2: - Fixed compiling error when compiled as a module. - Fixed issues pointed by Stephen Boyd. - Added prefix HISTB for clock index macro definitions. .../clock/{hi3519-crg.txt => hisi-crg.txt} | 11 +- drivers/clk/hisilicon/Kconfig | 8 + drivers/clk/hisilicon/Makefile | 1 + drivers/clk/hisilicon/crg-hi3798cv200.c | 305 +++++++++++++++++++++ drivers/clk/hisilicon/crg.h | 34 +++ include/dt-bindings/clock/histb-clock.h | 64 +++++ 6 files changed, 419 insertions(+), 4 deletions(-) rename Documentation/devicetree/bindings/clock/{hi3519-crg.txt => hisi-crg.txt} (82%) create mode 100644 drivers/clk/hisilicon/crg-hi3798cv200.c create mode 100644 drivers/clk/hisilicon/crg.h create mode 100644 include/dt-bindings/clock/histb-clock.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/Documentation/devicetree/bindings/clock/hi3519-crg.txt b/Documentation/devicetree/bindings/clock/hisi-crg.txt similarity index 82% rename from Documentation/devicetree/bindings/clock/hi3519-crg.txt rename to Documentation/devicetree/bindings/clock/hisi-crg.txt index acd1f23..e3919b6 100644 --- a/Documentation/devicetree/bindings/clock/hi3519-crg.txt +++ b/Documentation/devicetree/bindings/clock/hisi-crg.txt @@ -1,7 +1,7 @@ -* Hisilicon Hi3519 Clock and Reset Generator(CRG) +* HiSilicon Clock and Reset Generator(CRG) -The Hi3519 CRG module provides clock and reset signals to various -controllers within the SoC. +The CRG module provides clock and reset signals to various +modules within the SoC. This binding uses the following bindings: Documentation/devicetree/bindings/clock/clock-bindings.txt @@ -10,7 +10,10 @@ This binding uses the following bindings: Required Properties: - compatible: should be one of the following. - - "hisilicon,hi3519-crg" - controller compatible with Hi3519 SoC. + - "hisilicon,hi3516cv300-crg" + - "hisilicon,hi3519-crg" + - "hisilicon,hi3798cv200-crg" + - "hisilicon,hi3798cv200-sysctrl" - reg: physical base address of the controller and length of memory mapped region. diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig index 3f537a0..c41b6d2 100644 --- a/drivers/clk/hisilicon/Kconfig +++ b/drivers/clk/hisilicon/Kconfig @@ -6,6 +6,14 @@ config COMMON_CLK_HI3519 help Build the clock driver for hi3519. +config COMMON_CLK_HI3798CV200 + tristate "Hi3798CV200 Clock Driver" + depends on ARCH_HISI || COMPILE_TEST + select RESET_HISI + default ARCH_HISI + help + Build the clock driver for hi3798cv200. + 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 e169ec7..5819891 100644 --- a/drivers/clk/hisilicon/Makefile +++ b/drivers/clk/hisilicon/Makefile @@ -8,6 +8,7 @@ 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_HI3519) += clk-hi3519.o +obj-$(CONFIG_COMMON_CLK_HI3798CV200) += crg-hi3798cv200.o obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o obj-$(CONFIG_RESET_HISI) += reset.o obj-$(CONFIG_STUB_CLK_HI6220) += clk-hi6220-stub.o diff --git a/drivers/clk/hisilicon/crg-hi3798cv200.c b/drivers/clk/hisilicon/crg-hi3798cv200.c new file mode 100644 index 0000000..f8534bb --- /dev/null +++ b/drivers/clk/hisilicon/crg-hi3798cv200.c @@ -0,0 +1,305 @@ +/* + * Hi3798CV200 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 . + */ + +#include +#include +#include +#include +#include +#include "clk.h" +#include "crg.h" +#include "reset.h" + +/* hi3798CV200 core CRG */ +#define HI3798CV200_INNER_CLK_OFFSET 64 +#define HI3798CV200_FIXED_24M 65 +#define HI3798CV200_FIXED_25M 66 +#define HI3798CV200_FIXED_50M 67 +#define HI3798CV200_FIXED_75M 68 +#define HI3798CV200_FIXED_100M 69 +#define HI3798CV200_FIXED_150M 70 +#define HI3798CV200_FIXED_200M 71 +#define HI3798CV200_FIXED_250M 72 +#define HI3798CV200_FIXED_300M 73 +#define HI3798CV200_FIXED_400M 74 +#define HI3798CV200_MMC_MUX 75 + +#define HI3798CV200_CRG_NR_CLKS 128 + +static const struct hisi_fixed_rate_clock hi3798cv200_fixed_rate_clks[] = { + { HISTB_OSC_CLK, "clk_osc", NULL, 0, 24000000, }, + { HISTB_APB_CLK, "clk_apb", NULL, 0, 100000000, }, + { HISTB_AHB_CLK, "clk_ahb", NULL, 0, 200000000, }, + { HI3798CV200_FIXED_24M, "24m", NULL, 0, 24000000, }, + { HI3798CV200_FIXED_25M, "25m", NULL, 0, 25000000, }, + { HI3798CV200_FIXED_50M, "50m", NULL, 0, 50000000, }, + { HI3798CV200_FIXED_75M, "75m", NULL, 0, 75000000, }, + { HI3798CV200_FIXED_100M, "100m", NULL, 0, 100000000, }, + { HI3798CV200_FIXED_150M, "150m", NULL, 0, 150000000, }, + { HI3798CV200_FIXED_200M, "200m", NULL, 0, 200000000, }, + { HI3798CV200_FIXED_250M, "250m", NULL, 0, 250000000, }, +}; + +static const char *const mmc_mux_p[] = { + "100m", "50m", "25m", "200m", "150m" }; +static u32 mmc_mux_table[] = {0, 1, 2, 3, 6}; + +static struct hisi_mux_clock hi3798cv200_mux_clks[] = { + { HI3798CV200_MMC_MUX, "mmc_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p), + CLK_SET_RATE_PARENT, 0xa0, 8, 3, 0, mmc_mux_table, }, +}; + +static const struct hisi_gate_clock hi3798cv200_gate_clks[] = { + /* UART */ + { HISTB_UART2_CLK, "clk_uart2", "75m", + CLK_SET_RATE_PARENT, 0x68, 4, 0, }, + /* I2C */ + { HISTB_I2C0_CLK, "clk_i2c0", "clk_apb", + CLK_SET_RATE_PARENT, 0x6C, 4, 0, }, + { HISTB_I2C1_CLK, "clk_i2c1", "clk_apb", + CLK_SET_RATE_PARENT, 0x6C, 8, 0, }, + { HISTB_I2C2_CLK, "clk_i2c2", "clk_apb", + CLK_SET_RATE_PARENT, 0x6C, 12, 0, }, + { HISTB_I2C3_CLK, "clk_i2c3", "clk_apb", + CLK_SET_RATE_PARENT, 0x6C, 16, 0, }, + { HISTB_I2C4_CLK, "clk_i2c4", "clk_apb", + CLK_SET_RATE_PARENT, 0x6C, 20, 0, }, + /* SPI */ + { HISTB_SPI0_CLK, "clk_spi0", "clk_apb", + CLK_SET_RATE_PARENT, 0x70, 0, 0, }, + /* SDIO */ + { HISTB_SDIO0_BIU_CLK, "clk_sdio0_biu", "200m", + CLK_SET_RATE_PARENT, 0x9c, 0, 0, }, + { HISTB_SDIO0_CIU_CLK, "clk_sdio0_ciu", "mmc_mux", + CLK_SET_RATE_PARENT, 0x9c, 1, 0, }, + /* EMMC */ + { HISTB_MMC_BIU_CLK, "clk_mmc_biu", "200m", + CLK_SET_RATE_PARENT, 0xa0, 0, 0, }, + { HISTB_MMC_CIU_CLK, "clk_mmc_ciu", "mmc_mux", + CLK_SET_RATE_PARENT, 0xa0, 1, 0, }, + /* PCIE*/ + { HISTB_PCIE_BUS_CLK, "clk_pcie_bus", "200m", + CLK_SET_RATE_PARENT, 0x18c, 0, 0, }, + { HISTB_PCIE_SYS_CLK, "clk_pcie_sys", "100m", + CLK_SET_RATE_PARENT, 0x18c, 1, 0, }, + { HISTB_PCIE_PIPE_CLK, "clk_pcie_pipe", "250m", + CLK_SET_RATE_PARENT, 0x18c, 2, 0, }, + { HISTB_PCIE_AUX_CLK, "clk_pcie_aux", "24m", + CLK_SET_RATE_PARENT, 0x18c, 3, 0, }, +}; + +static struct hisi_clock_data *hi3798cv200_clk_register( + struct platform_device *pdev) +{ + struct hisi_clock_data *clk_data; + int ret; + + clk_data = hisi_clk_alloc(pdev, HI3798CV200_CRG_NR_CLKS); + if (!clk_data) + return ERR_PTR(-ENOMEM); + + ret = hisi_clk_register_fixed_rate(hi3798cv200_fixed_rate_clks, + ARRAY_SIZE(hi3798cv200_fixed_rate_clks), + clk_data); + if (ret) + return ERR_PTR(ret); + + ret = hisi_clk_register_mux(hi3798cv200_mux_clks, + ARRAY_SIZE(hi3798cv200_mux_clks), + clk_data); + if (ret) + goto unregister_fixed_rate; + + ret = hisi_clk_register_gate(hi3798cv200_gate_clks, + ARRAY_SIZE(hi3798cv200_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_fixed_rate: + hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks, + ARRAY_SIZE(hi3798cv200_fixed_rate_clks), + clk_data); + +unregister_mux: + hisi_clk_unregister_mux(hi3798cv200_mux_clks, + ARRAY_SIZE(hi3798cv200_mux_clks), + clk_data); +unregister_gate: + hisi_clk_unregister_gate(hi3798cv200_gate_clks, + ARRAY_SIZE(hi3798cv200_gate_clks), + clk_data); + return ERR_PTR(ret); +} + +static void hi3798cv200_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(hi3798cv200_gate_clks, + ARRAY_SIZE(hi3798cv200_gate_clks), + crg->clk_data); + hisi_clk_unregister_mux(hi3798cv200_mux_clks, + ARRAY_SIZE(hi3798cv200_mux_clks), + crg->clk_data); + hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks, + ARRAY_SIZE(hi3798cv200_fixed_rate_clks), + crg->clk_data); +} + +static const struct hisi_crg_funcs hi3798cv200_crg_funcs = { + .register_clks = hi3798cv200_clk_register, + .unregister_clks = hi3798cv200_clk_unregister, +}; + +/* hi3798CV200 sysctrl CRG */ + +#define HI3798CV200_SYSCTRL_NR_CLKS 16 + +static const struct hisi_gate_clock hi3798cv200_sysctrl_gate_clks[] = { + { HISTB_IR_CLK, "clk_ir", "100m", + CLK_SET_RATE_PARENT, 0x48, 4, 0, }, + { HISTB_TIMER01_CLK, "clk_timer01", "24m", + CLK_SET_RATE_PARENT, 0x48, 6, 0, }, + { HISTB_UART0_CLK, "clk_uart0", "75m", + CLK_SET_RATE_PARENT, 0x48, 10, 0, }, +}; + +static struct hisi_clock_data *hi3798cv200_sysctrl_clk_register( + struct platform_device *pdev) +{ + struct hisi_clock_data *clk_data; + int ret; + + clk_data = hisi_clk_alloc(pdev, HI3798CV200_SYSCTRL_NR_CLKS); + if (!clk_data) + return ERR_PTR(-ENOMEM); + + ret = hisi_clk_register_gate(hi3798cv200_sysctrl_gate_clks, + ARRAY_SIZE(hi3798cv200_sysctrl_gate_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_gate; + + return clk_data; + +unregister_gate: + hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks, + ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks), + clk_data); + return ERR_PTR(ret); +} + +static void hi3798cv200_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_gate(hi3798cv200_sysctrl_gate_clks, + ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks), + crg->clk_data); +} + +static const struct hisi_crg_funcs hi3798cv200_sysctrl_funcs = { + .register_clks = hi3798cv200_sysctrl_clk_register, + .unregister_clks = hi3798cv200_sysctrl_clk_unregister, +}; + +static const struct of_device_id hi3798cv200_crg_match_table[] = { + { .compatible = "hisilicon,hi3798cv200-crg", + .data = &hi3798cv200_crg_funcs }, + { .compatible = "hisilicon,hi3798cv200-sysctrl", + .data = &hi3798cv200_sysctrl_funcs }, + { } +}; +MODULE_DEVICE_TABLE(of, hi3798cv200_crg_match_table); + +static int hi3798cv200_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 hi3798cv200_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 hi3798cv200_crg_driver = { + .probe = hi3798cv200_crg_probe, + .remove = hi3798cv200_crg_remove, + .driver = { + .name = "hi3798cv200-crg", + .of_match_table = hi3798cv200_crg_match_table, + }, +}; + +static int __init hi3798cv200_crg_init(void) +{ + return platform_driver_register(&hi3798cv200_crg_driver); +} +core_initcall(hi3798cv200_crg_init); + +static void __exit hi3798cv200_crg_exit(void) +{ + platform_driver_unregister(&hi3798cv200_crg_driver); +} +module_exit(hi3798cv200_crg_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("HiSilicon Hi3798CV200 CRG Driver"); diff --git a/drivers/clk/hisilicon/crg.h b/drivers/clk/hisilicon/crg.h new file mode 100644 index 0000000..e073971 --- /dev/null +++ b/drivers/clk/hisilicon/crg.h @@ -0,0 +1,34 @@ +/* + * HiSilicon Clock and Reset Driver Header + * + * Copyright (c) 2016 HiSilicon Limited. + * + * 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 __HISI_CRG_H +#define __HISI_CRG_H + +struct hisi_clock_data; +struct hisi_reset_controller; + +struct hisi_crg_funcs { + struct hisi_clock_data* (*register_clks)(struct platform_device *pdev); + void (*unregister_clks)(struct platform_device *pdev); +}; + +struct hisi_crg_dev { + struct hisi_clock_data *clk_data; + struct hisi_reset_controller *rstc; + const struct hisi_crg_funcs *funcs; +}; + +#endif /* __HISI_CRG_H */ diff --git a/include/dt-bindings/clock/histb-clock.h b/include/dt-bindings/clock/histb-clock.h new file mode 100644 index 0000000..b06d115 --- /dev/null +++ b/include/dt-bindings/clock/histb-clock.h @@ -0,0 +1,64 @@ +/* + * 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 . + */ + +#ifndef __DTS_HISTB_CLOCK_H +#define __DTS_HISTB_CLOCK_H + +/* clocks provided by core CRG */ +#define HISTB_OSC_CLK 0 +#define HISTB_APB_CLK 1 +#define HISTB_AHB_CLK 2 +#define HISTB_UART1_CLK 3 +#define HISTB_UART2_CLK 4 +#define HISTB_UART3_CLK 5 +#define HISTB_I2C0_CLK 6 +#define HISTB_I2C1_CLK 7 +#define HISTB_I2C2_CLK 8 +#define HISTB_I2C3_CLK 9 +#define HISTB_I2C4_CLK 10 +#define HISTB_I2C5_CLK 11 +#define HISTB_SPI0_CLK 12 +#define HISTB_SPI1_CLK 13 +#define HISTB_SPI2_CLK 14 +#define HISTB_SCI_CLK 15 +#define HISTB_FMC_CLK 16 +#define HISTB_MMC_BIU_CLK 17 +#define HISTB_MMC_CIU_CLK 18 +#define HISTB_MMC_DRV_CLK 19 +#define HISTB_MMC_SAMPLE_CLK 20 +#define HISTB_SDIO0_BIU_CLK 21 +#define HISTB_SDIO0_CIU_CLK 22 +#define HISTB_SDIO0_DRV_CLK 23 +#define HISTB_SDIO0_SAMPLE_CLK 24 +#define HISTB_PCIE_AUX_CLK 25 +#define HISTB_PCIE_PIPE_CLK 26 +#define HISTB_PCIE_SYS_CLK 27 +#define HISTB_PCIE_BUS_CLK 28 +#define HISTB_ETH0_MAC_CLK 29 +#define HISTB_ETH0_MACIF_CLK 30 +#define HISTB_ETH1_MAC_CLK 31 +#define HISTB_ETH1_MACIF_CLK 32 + +/* clocks provided by mcu CRG */ +#define HISTB_MCE_CLK 1 +#define HISTB_IR_CLK 2 +#define HISTB_TIMER01_CLK 3 +#define HISTB_LEDC_CLK 4 +#define HISTB_UART0_CLK 5 +#define HISTB_LSADC_CLK 6 + +#endif /* __DTS_HISTB_CLOCK_H */