From patchwork Wed May 27 09:04:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhou Yanjie X-Patchwork-Id: 11572335 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B0C4A14F6 for ; Wed, 27 May 2020 09:05:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9AA7420787 for ; Wed, 27 May 2020 09:05:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388414AbgE0JFT (ORCPT ); Wed, 27 May 2020 05:05:19 -0400 Received: from out29-121.mail.aliyun.com ([115.124.29.121]:49847 "EHLO out29-121.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388447AbgE0JFS (ORCPT ); Wed, 27 May 2020 05:05:18 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.0743652|-1;CH=blue;DM=|OVERLOAD|false|;DS=CONTINUE|ham_regular_dialog|0.262833-0.000428458-0.736738;FP=12022762160716416709|2|1|7|0|-1|-1|-1;HT=e02c03300;MF=zhouyanjie@wanyeetech.com;NM=1;PH=DS;RN=13;RT=13;SR=0;TI=SMTPD_---.HeI09nX_1590570281; Received: from localhost.localdomain(mailfrom:zhouyanjie@wanyeetech.com fp:SMTPD_---.HeI09nX_1590570281) by smtp.aliyun-inc.com(10.147.40.2); Wed, 27 May 2020 17:05:11 +0800 From: =?utf-8?b?5ZGo55Cw5p2wIChaaG91IFlhbmppZSk=?= To: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, sboyd@kernel.org, mturquette@baylibre.com, robh+dt@kernel.org, dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com, rick.tyliu@ingenic.com, yanfei.li@ingenic.com, sernia.zhou@foxmail.com, zhenwenjin@gmail.com, paul@crapouillou.net Subject: [PATCH RESEND v11 7/7] clk: X1000: Add FIXDIV for SSI clock of X1000. Date: Wed, 27 May 2020 17:04:19 +0800 Message-Id: <20200527090419.56213-8-zhouyanjie@wanyeetech.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20200527090419.56213-1-zhouyanjie@wanyeetech.com> References: <20200527090419.56213-1-zhouyanjie@wanyeetech.com> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org 1.The SSI clock of X1000 not like JZ4770 and JZ4780, they are not directly derived from the output of SSIPLL, but from the clock obtained by dividing the frequency by 2. "X1000_CLK_SSIPLL_DIV2" is added for this purpose, and ensure that it initialized before "X1000_CLK_SSIMUX" when initializing the clocks. 2.Clocks of LCD, OTG, EMC, EFUSE, OST, TCU, and gates of CPU, PCLK are also added. 3.Use "CLK_OF_DECLARE_DRIVER" like the other CGU drivers. Signed-off-by: 周琰杰 (Zhou Yanjie) Reviewed-by: Paul Cercueil --- Notes: v5: New patch. V5->v6: Add missing part of X1000's CGU. v6->v7: Update commit message. v7->v8: No change. v8->v9: Add Paul Cercueil's Reviewed-by, somehow his emails are not displayed on the mailing list and patchwork of clock framework subsystem. v9->v10: No change. v10->v11: No change. drivers/clk/ingenic/x1000-cgu.c | 110 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 105 insertions(+), 5 deletions(-) diff --git a/drivers/clk/ingenic/x1000-cgu.c b/drivers/clk/ingenic/x1000-cgu.c index c33934d8ac14..68c6e62457e1 100644 --- a/drivers/clk/ingenic/x1000-cgu.c +++ b/drivers/clk/ingenic/x1000-cgu.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * X1000 SoC CGU driver - * Copyright (c) 2019 Zhou Yanjie + * Copyright (c) 2019 周琰杰 (Zhou Yanjie) */ #include @@ -20,6 +20,9 @@ #define CGU_REG_CLKGR 0x20 #define CGU_REG_OPCR 0x24 #define CGU_REG_DDRCDR 0x2c +#define CGU_REG_USBPCR 0x3c +#define CGU_REG_USBPCR1 0x48 +#define CGU_REG_USBCDR 0x50 #define CGU_REG_MACCDR 0x54 #define CGU_REG_I2SCDR 0x60 #define CGU_REG_LPCDR 0x64 @@ -40,8 +43,47 @@ #define OPCR_SPENDN0 BIT(7) #define OPCR_SPENDN1 BIT(6) +/* bits within the USBPCR register */ +#define USBPCR_SIDDQ BIT(21) +#define USBPCR_OTG_DISABLE BIT(20) + static struct ingenic_cgu *cgu; +static int x1000_usb_phy_enable(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + void __iomem *reg_usbpcr = cgu->base + CGU_REG_USBPCR; + + writel(readl(reg_opcr) | OPCR_SPENDN0, reg_opcr); + writel(readl(reg_usbpcr) & ~USBPCR_OTG_DISABLE & ~USBPCR_SIDDQ, reg_usbpcr); + return 0; +} + +static void x1000_usb_phy_disable(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + void __iomem *reg_usbpcr = cgu->base + CGU_REG_USBPCR; + + writel(readl(reg_opcr) & ~OPCR_SPENDN0, reg_opcr); + writel(readl(reg_usbpcr) | USBPCR_OTG_DISABLE | USBPCR_SIDDQ, reg_usbpcr); +} + +static int x1000_usb_phy_is_enabled(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + void __iomem *reg_usbpcr = cgu->base + CGU_REG_USBPCR; + + return (readl(reg_opcr) & OPCR_SPENDN0) && + !(readl(reg_usbpcr) & USBPCR_SIDDQ) && + !(readl(reg_usbpcr) & USBPCR_OTG_DISABLE); +} + +static const struct clk_ops x1000_otg_phy_ops = { + .enable = x1000_usb_phy_enable, + .disable = x1000_usb_phy_disable, + .is_enabled = x1000_usb_phy_is_enabled, +}; + static const s8 pll_od_encoding[8] = { 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3, }; @@ -101,6 +143,15 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { }, }, + + /* Custom (SoC-specific) OTG PHY */ + + [X1000_CLK_OTGPHY] = { + "otg_phy", CGU_CLK_CUSTOM, + .parents = { -1, -1, X1000_CLK_EXCLK, -1 }, + .custom = { &x1000_otg_phy_ops }, + }, + /* Muxes & dividers */ [X1000_CLK_SCLKA] = { @@ -116,9 +167,10 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { }, [X1000_CLK_CPU] = { - "cpu", CGU_CLK_DIV, + "cpu", CGU_CLK_DIV | CGU_CLK_GATE, .parents = { X1000_CLK_CPUMUX, -1, -1, -1 }, .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 }, + .gate = { CGU_REG_CLKGR, 30 }, }, [X1000_CLK_L2CACHE] = { @@ -147,9 +199,10 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { }, [X1000_CLK_PCLK] = { - "pclk", CGU_CLK_DIV, + "pclk", CGU_CLK_DIV | CGU_CLK_GATE, .parents = { X1000_CLK_AHB2PMUX, -1, -1, -1 }, .div = { CGU_REG_CPCCR, 16, 1, 4, 20, -1, -1 }, + .gate = { CGU_REG_CLKGR, 28 }, }, [X1000_CLK_DDR] = { @@ -162,12 +215,20 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { [X1000_CLK_MAC] = { "mac", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, - .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL}, + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL }, .mux = { CGU_REG_MACCDR, 31, 1 }, .div = { CGU_REG_MACCDR, 0, 1, 8, 29, 28, 27 }, .gate = { CGU_REG_CLKGR, 25 }, }, + [X1000_CLK_LCD] = { + "lcd", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL }, + .mux = { CGU_REG_LPCDR, 31, 1 }, + .div = { CGU_REG_LPCDR, 0, 1, 8, 28, 27, 26 }, + .gate = { CGU_REG_CLKGR, 23 }, + }, + [X1000_CLK_MSCMUX] = { "msc_mux", CGU_CLK_MUX, .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL}, @@ -188,6 +249,15 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .gate = { CGU_REG_CLKGR, 5 }, }, + [X1000_CLK_OTG] = { + "otg", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { X1000_CLK_EXCLK, -1, + X1000_CLK_APLL, X1000_CLK_MPLL }, + .mux = { CGU_REG_USBCDR, 30, 2 }, + .div = { CGU_REG_USBCDR, 0, 1, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 3 }, + }, + [X1000_CLK_SSIPLL] = { "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV, .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL, -1, -1 }, @@ -195,14 +265,32 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 }, }, + [X1000_CLK_SSIPLL_DIV2] = { + "ssi_pll_div2", CGU_CLK_FIXDIV, + .parents = { X1000_CLK_SSIPLL }, + .fixdiv = { 2 }, + }, + [X1000_CLK_SSIMUX] = { "ssi_mux", CGU_CLK_MUX, - .parents = { X1000_CLK_EXCLK, X1000_CLK_SSIPLL, -1, -1 }, + .parents = { X1000_CLK_EXCLK, X1000_CLK_SSIPLL_DIV2, -1, -1 }, .mux = { CGU_REG_SSICDR, 30, 1 }, }, /* Gate-only clocks */ + [X1000_CLK_EMC] = { + "emc", CGU_CLK_GATE, + .parents = { X1000_CLK_AHB2, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 0 }, + }, + + [X1000_CLK_EFUSE] = { + "efuse", CGU_CLK_GATE, + .parents = { X1000_CLK_AHB2, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 1 }, + }, + [X1000_CLK_SFC] = { "sfc", CGU_CLK_GATE, .parents = { X1000_CLK_SSIPLL, -1, -1, -1 }, @@ -245,12 +333,24 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .gate = { CGU_REG_CLKGR, 16 }, }, + [X1000_CLK_TCU] = { + "tcu", CGU_CLK_GATE, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 18 }, + }, + [X1000_CLK_SSI] = { "ssi", CGU_CLK_GATE, .parents = { X1000_CLK_SSIMUX, -1, -1, -1 }, .gate = { CGU_REG_CLKGR, 19 }, }, + [X1000_CLK_OST] = { + "ost", CGU_CLK_GATE, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 20 }, + }, + [X1000_CLK_PDMA] = { "pdma", CGU_CLK_GATE, .parents = { X1000_CLK_EXCLK, -1, -1, -1 },