From patchwork Mon Jun 28 18:20:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhou Yanjie X-Patchwork-Id: 12348441 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DC73C11F77 for ; Mon, 28 Jun 2021 18:21:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7A5FB61C7B for ; Mon, 28 Jun 2021 18:21:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235323AbhF1SXd (ORCPT ); Mon, 28 Jun 2021 14:23:33 -0400 Received: from out28-53.mail.aliyun.com ([115.124.28.53]:50462 "EHLO out28-53.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235033AbhF1SXa (ORCPT ); Mon, 28 Jun 2021 14:23:30 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.07436282|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_regular_dialog|0.0272629-0.000267404-0.97247;FP=0|0|0|0|0|-1|-1|-1;HT=ay29a033018047211;MF=zhouyanjie@wanyeetech.com;NM=1;PH=DS;RN=14;RT=14;SR=0;TI=SMTPD_---.KZOO9TY_1624904444; Received: from zhouyanjie-virtual-machine.localdomain(mailfrom:zhouyanjie@wanyeetech.com fp:SMTPD_---.KZOO9TY_1624904444) by smtp.aliyun-inc.com(10.147.42.253); Tue, 29 Jun 2021 02:21:01 +0800 From: =?utf-8?b?5ZGo55Cw5p2wIChaaG91IFlhbmppZSk=?= To: mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org Cc: linux-mips@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, paul@crapouillou.net, dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com, rick.tyliu@ingenic.com, sihui.liu@ingenic.com, jun.jiang@ingenic.com, sernia.zhou@foxmail.com Subject: [PATCH v5 10/11] clk: Ingenic: Add CGU driver for JZ4775. Date: Tue, 29 Jun 2021 02:20:43 +0800 Message-Id: <1624904444-2618-11-git-send-email-zhouyanjie@wanyeetech.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1624904444-2618-1-git-send-email-zhouyanjie@wanyeetech.com> References: <1624904444-2618-1-git-send-email-zhouyanjie@wanyeetech.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Add support for the clocks provided by the CGU in the Ingenic JZ4775 SoC, making use of the cgu code to do the heavy lifting. Signed-off-by: 周琰杰 (Zhou Yanjie) --- Notes: v5: New patch. drivers/clk/ingenic/Kconfig | 10 + drivers/clk/ingenic/Makefile | 1 + drivers/clk/ingenic/jz4775-cgu.c | 571 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 582 insertions(+) create mode 100644 drivers/clk/ingenic/jz4775-cgu.c diff --git a/drivers/clk/ingenic/Kconfig b/drivers/clk/ingenic/Kconfig index 898f1bc..7fda7bb 100644 --- a/drivers/clk/ingenic/Kconfig +++ b/drivers/clk/ingenic/Kconfig @@ -45,6 +45,16 @@ config INGENIC_CGU_JZ4770 If building for a JZ4770 SoC, you want to say Y here. +config INGENIC_CGU_JZ4775 + bool "Ingenic JZ4775 CGU driver" + default MACH_JZ4775 + select INGENIC_CGU_COMMON + help + Support the clocks provided by the CGU hardware on Ingenic JZ4775 + and compatible SoCs. + + If building for a JZ4775 SoC, you want to say Y here. + config INGENIC_CGU_JZ4780 bool "Ingenic JZ4780 CGU driver" default MACH_JZ4780 diff --git a/drivers/clk/ingenic/Makefile b/drivers/clk/ingenic/Makefile index 9edfaf4..aed8da4 100644 --- a/drivers/clk/ingenic/Makefile +++ b/drivers/clk/ingenic/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_INGENIC_CGU_JZ4740) += jz4740-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4725B) += jz4725b-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4760) += jz4760-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4770) += jz4770-cgu.o +obj-$(CONFIG_INGENIC_CGU_JZ4775) += jz4775-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4780) += jz4780-cgu.o obj-$(CONFIG_INGENIC_CGU_X1000) += x1000-cgu.o obj-$(CONFIG_INGENIC_CGU_X1830) += x1830-cgu.o diff --git a/drivers/clk/ingenic/jz4775-cgu.c b/drivers/clk/ingenic/jz4775-cgu.c new file mode 100644 index 00000000..b967d61 --- /dev/null +++ b/drivers/clk/ingenic/jz4775-cgu.c @@ -0,0 +1,571 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * JZ4775 SoC CGU driver + * Copyright (c) 2020 周琰杰 (Zhou Yanjie) + */ + +#include +#include +#include +#include + +#include + +#include "cgu.h" +#include "pm.h" + +/* CGU register offsets */ +#define CGU_REG_CPCCR 0x00 +#define CGU_REG_APLL 0x10 +#define CGU_REG_MPLL 0x14 +#define CGU_REG_CLKGR 0x20 +#define CGU_REG_OPCR 0x24 +#define CGU_REG_DDRCDR 0x2c +#define CGU_REG_VPUCDR 0x30 +#define CGU_REG_USBPCR 0x3c +#define CGU_REG_USBPCR1 0x48 +#define CGU_REG_USBCDR 0x50 +#define CGU_REG_I2SCDR 0x60 +#define CGU_REG_LPCDR 0x64 +#define CGU_REG_MSC0CDR 0x68 +#define CGU_REG_UHCCDR 0x6c +#define CGU_REG_SSICDR 0x74 +#define CGU_REG_CIM0CDR 0x7c +#define CGU_REG_CIM1CDR 0x80 +#define CGU_REG_PCMCDR 0x84 +#define CGU_REG_MSC1CDR 0xa4 +#define CGU_REG_MSC2CDR 0xa8 +#define CGU_REG_BCHCDR 0xac +#define CGU_REG_CMP_INTR 0xb0 +#define CGU_REG_CMP_INTRE 0xb4 +#define CGU_REG_SRBC 0xc4 +#define CGU_REG_DRCG 0xd0 +#define CGU_REG_CPCSR 0xd4 +#define CGU_REG_MACPHYC 0xe0 + +/* bits within the OPCR register */ +#define OPCR_SPENDN0 BIT(7) + +/* bits within the USBPCR register */ +#define USBPCR_SIDDQ BIT(21) +#define USBPCR_OTG_DISABLE BIT(20) + +/* bits within the USBPCR1 register */ +#define USBPCR1_REFCLKDIV_SHIFT 24 +#define USBPCR1_REFCLKDIV_MASK (0x3 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_19_2 (0x3 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_48 (0x2 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_24 (0x1 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_12 (0x0 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_PDBAR BIT(17) +#define USBPCR1_XP_SHIFT 12 +#define USBPCR1_XP_MASK (0x3 << USBPCR1_XP_SHIFT) +#define USBPCR1_XP_DFT (0x1 << USBPCR1_XP_SHIFT) +#define USBPCR1_SM_SHIFT 6 +#define USBPCR1_SM_MASK (0x7 << USBPCR1_XP_SHIFT) +#define USBPCR1_SM_RPD (0x1 << USBPCR1_XP_SHIFT) + +static struct ingenic_cgu *cgu; + +static int jz4775_uhc_phy_enable(struct clk_hw *hw) +{ + void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1; + u32 usbpcr1; + + usbpcr1 = readl(reg_usbpcr1); + usbpcr1 &= ~(USBPCR1_XP_MASK | USBPCR1_SM_MASK); + usbpcr1 |= USBPCR1_XP_DFT | USBPCR1_SM_RPD; + writel(usbpcr1, reg_usbpcr1); + + return 0; +} + +static void jz4775_uhc_phy_disable(struct clk_hw *hw) +{ + void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1; + + writel(readl(reg_usbpcr1) & ~USBPCR1_PDBAR, reg_usbpcr1); +} + +static int jz4775_uhc_phy_is_enabled(struct clk_hw *hw) +{ + void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1; + + return !!(readl(reg_usbpcr1) & USBPCR1_PDBAR); +} + +static const struct clk_ops jz4775_uhc_phy_ops = { + .enable = jz4775_uhc_phy_enable, + .disable = jz4775_uhc_phy_disable, + .is_enabled = jz4775_uhc_phy_is_enabled, +}; + +static unsigned long jz4775_otg_phy_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u32 usbpcr1; + unsigned refclk_div; + + usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1); + refclk_div = usbpcr1 & USBPCR1_REFCLKDIV_MASK; + + switch (refclk_div) { + case USBPCR1_REFCLKDIV_12: + return 12000000; + + case USBPCR1_REFCLKDIV_24: + return 24000000; + + case USBPCR1_REFCLKDIV_48: + return 48000000; + + case USBPCR1_REFCLKDIV_19_2: + return 19200000; + } + + return parent_rate; +} + +static long jz4775_otg_phy_round_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long *parent_rate) +{ + if (req_rate < 15600000) + return 12000000; + + if (req_rate < 21600000) + return 19200000; + + if (req_rate < 36000000) + return 24000000; + + return 48000000; +} + +static int jz4775_otg_phy_set_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long parent_rate) +{ + unsigned long flags; + u32 usbpcr1, div_bits; + + switch (req_rate) { + case 12000000: + div_bits = USBPCR1_REFCLKDIV_12; + break; + + case 19200000: + div_bits = USBPCR1_REFCLKDIV_19_2; + break; + + case 24000000: + div_bits = USBPCR1_REFCLKDIV_24; + break; + + case 48000000: + div_bits = USBPCR1_REFCLKDIV_48; + break; + + default: + return -EINVAL; + } + + spin_lock_irqsave(&cgu->lock, flags); + + usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1); + usbpcr1 &= ~USBPCR1_REFCLKDIV_MASK; + usbpcr1 |= div_bits; + writel(usbpcr1, cgu->base + CGU_REG_USBPCR1); + + spin_unlock_irqrestore(&cgu->lock, flags); + + return 0; +} + +static int jz4775_otg_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 jz4775_otg_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 jz4775_otg_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 jz4775_otg_phy_ops = { + .recalc_rate = jz4775_otg_phy_recalc_rate, + .round_rate = jz4775_otg_phy_round_rate, + .set_rate = jz4775_otg_phy_set_rate, + + .enable = jz4775_otg_phy_enable, + .disable = jz4775_otg_phy_disable, + .is_enabled = jz4775_otg_phy_is_enabled, +}; + +static const s8 pll_od_encoding[8] = { + 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3, +}; + +static const struct ingenic_cgu_clk_info jz4775_cgu_clocks[] = { + + /* External clocks */ + + [JZ4775_CLK_EXCLK] = { "ext", CGU_CLK_EXT }, + [JZ4775_CLK_RTCLK] = { "rtc", CGU_CLK_EXT }, + + /* PLLs */ + + [JZ4775_CLK_APLL] = { + "apll", CGU_CLK_PLL, + .parents = { JZ4775_CLK_EXCLK, -1, -1, -1 }, + .pll = { + .reg = CGU_REG_APLL, + .rate_multiplier = 1, + .m_shift = 24, + .m_bits = 7, + .m_offset = 1, + .n_shift = 18, + .n_bits = 5, + .n_offset = 1, + .od_shift = 16, + .od_bits = 2, + .od_max = 8, + .od_encoding = pll_od_encoding, + .bypass_reg = CGU_REG_APLL, + .bypass_bit = 9, + .enable_bit = 8, + .stable_bit = 10, + }, + }, + + [JZ4775_CLK_MPLL] = { + "mpll", CGU_CLK_PLL, + .parents = { JZ4775_CLK_EXCLK, -1, -1, -1 }, + .pll = { + .reg = CGU_REG_MPLL, + .rate_multiplier = 1, + .m_shift = 24, + .m_bits = 7, + .m_offset = 1, + .n_shift = 18, + .n_bits = 5, + .n_offset = 1, + .od_shift = 16, + .od_bits = 2, + .od_max = 8, + .od_encoding = pll_od_encoding, + .bypass_reg = CGU_REG_MPLL, + .bypass_bit = 6, + .enable_bit = 7, + .stable_bit = 0, + }, + }, + + /* Custom (SoC-specific) */ + + [JZ4775_CLK_UHCPHY] = { + "uhc_phy", CGU_CLK_CUSTOM, + .parents = { JZ4775_CLK_UHC, -1, -1, -1 }, + .custom = { &jz4775_uhc_phy_ops }, + }, + + [JZ4775_CLK_OTGPHY] = { + "otg_phy", CGU_CLK_CUSTOM, + .parents = { JZ4775_CLK_EXCLK, -1, -1, -1 }, + .custom = { &jz4775_otg_phy_ops }, + }, + + /* Muxes & dividers */ + + [JZ4775_CLK_SCLKA] = { + "sclk_a", CGU_CLK_MUX, + .parents = { -1, JZ4775_CLK_APLL, JZ4775_CLK_EXCLK, JZ4775_CLK_RTCLK }, + .mux = { CGU_REG_CPCCR, 30, 2 }, + }, + + [JZ4775_CLK_CPUMUX] = { + "cpu_mux", CGU_CLK_MUX, + .parents = { -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, -1 }, + .mux = { CGU_REG_CPCCR, 28, 2 }, + }, + + [JZ4775_CLK_CPU] = { + "cpu", CGU_CLK_DIV, + .parents = { JZ4775_CLK_CPUMUX }, + .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 }, + }, + + [JZ4775_CLK_L2CACHE] = { + "l2cache", CGU_CLK_DIV, + .parents = { JZ4775_CLK_CPUMUX }, + .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 }, + }, + + [JZ4775_CLK_AHB0] = { + "ahb0", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, -1 }, + .mux = { CGU_REG_CPCCR, 26, 2 }, + .div = { CGU_REG_CPCCR, 8, 1, 4, 21, -1, -1 }, + }, + + [JZ4775_CLK_AHB2PMUX] = { + "ahb2_apb_mux", CGU_CLK_MUX, + .parents = { -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, JZ4775_CLK_RTCLK }, + .mux = { CGU_REG_CPCCR, 24, 2 }, + }, + + [JZ4775_CLK_AHB2] = { + "ahb2", CGU_CLK_DIV, + .parents = { JZ4775_CLK_AHB2PMUX }, + .div = { CGU_REG_CPCCR, 12, 1, 4, 20, -1, -1 }, + }, + + [JZ4775_CLK_PCLK] = { + "pclk", CGU_CLK_DIV, + .parents = { JZ4775_CLK_AHB2PMUX }, + .div = { CGU_REG_CPCCR, 16, 1, 4, 20, -1, -1 }, + }, + + [JZ4775_CLK_DDR] = { + "ddr", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, -1 }, + .mux = { CGU_REG_DDRCDR, 30, 2 }, + .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 31 }, + }, + + [JZ4775_CLK_VPU] = { + "vpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_VPUCDR, 31, 1 }, + .div = { CGU_REG_VPUCDR, 0, 1, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 19 }, + }, + + [JZ4775_CLK_OTG] = { + "otg", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4775_CLK_EXCLK, -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_USBCDR, 30, 2 }, + .div = { CGU_REG_USBCDR, 0, 1, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 2 }, + }, + + [JZ4775_CLK_EXCLK_DIV2] = { + "exclk_div2", CGU_CLK_FIXDIV, + .parents = { JZ4775_CLK_EXCLK }, + .fixdiv = { 2 }, + }, + + [JZ4775_CLK_I2S] = { + "i2s", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4775_CLK_EXCLK_DIV2, -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_I2SCDR, 30, 2 }, + .div = { CGU_REG_I2SCDR, 0, 1, 8, 29, 28, 27 }, + }, + + [JZ4775_CLK_LCD] = { + "lcd", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_LPCDR, 31, 1 }, + .div = { CGU_REG_LPCDR, 0, 1, 8, 28, 27, 26 }, + .gate = { CGU_REG_CLKGR, 25 }, + }, + + [JZ4775_CLK_MSCMUX] = { + "msc_mux", CGU_CLK_MUX, + .parents = { -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, -1 }, + .mux = { CGU_REG_MSC0CDR, 30, 2 }, + }, + + [JZ4775_CLK_MSC0] = { + "msc0", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_MSCMUX }, + .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 3 }, + }, + + [JZ4775_CLK_MSC1] = { + "msc1", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_MSCMUX }, + .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 11 }, + }, + + [JZ4775_CLK_MSC2] = { + "msc2", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_MSCMUX }, + .div = { CGU_REG_MSC2CDR, 0, 2, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 12 }, + }, + + [JZ4775_CLK_UHC] = { + "uhc", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, JZ4775_CLK_OTGPHY, -1 }, + .mux = { CGU_REG_UHCCDR, 30, 2 }, + .div = { CGU_REG_UHCCDR, 0, 1, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 22 }, + }, + + [JZ4775_CLK_SSI] = { + "ssi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK, -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_SSICDR, 30, 2 }, + .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 4 }, + }, + + [JZ4775_CLK_CIM0] = { + "cim0", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_CIM0CDR, 31, 1 }, + .div = { CGU_REG_CIM0CDR, 0, 1, 8, 30, 29, 28 }, + .gate = { CGU_REG_CLKGR, 23 }, + }, + + [JZ4775_CLK_CIM1] = { + "cim1", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_CIM1CDR, 31, 1 }, + .div = { CGU_REG_CIM1CDR, 0, 1, 8, 30, 29, 28 }, + .gate = { CGU_REG_CLKGR, 24 }, + }, + + [JZ4775_CLK_PCM] = { + "pcm", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK_DIV2, -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL }, + .mux = { CGU_REG_PCMCDR, 30, 2 }, + .div = { CGU_REG_PCMCDR, 0, 1, 8, 28, 27, 26 }, + .gate = { CGU_REG_CLKGR, 13 }, + }, + + [JZ4775_CLK_BCH] = { + "bch", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { -1, JZ4775_CLK_SCLKA, JZ4775_CLK_MPLL, -1 }, + .mux = { CGU_REG_BCHCDR, 30, 2 }, + .div = { CGU_REG_BCHCDR, 0, 1, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 1 }, + }, + + [JZ4775_CLK_EXCLK_DIV512] = { + "exclk_div512", CGU_CLK_FIXDIV, + .parents = { JZ4775_CLK_EXCLK }, + .fixdiv = { 512 }, + }, + + [JZ4775_CLK_RTC] = { + "rtc_ercs", CGU_CLK_MUX | CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK_DIV512, JZ4775_CLK_RTCLK }, + .mux = { CGU_REG_OPCR, 2, 1}, + }, + + /* Gate-only clocks */ + + [JZ4775_CLK_NEMC] = { + "nemc", CGU_CLK_GATE, + .parents = { JZ4775_CLK_AHB2 }, + .gate = { CGU_REG_CLKGR, 0 }, + }, + + [JZ4775_CLK_I2C0] = { + "i2c0", CGU_CLK_GATE, + .parents = { JZ4775_CLK_PCLK }, + .gate = { CGU_REG_CLKGR, 5 }, + }, + + [JZ4775_CLK_I2C1] = { + "i2c1", CGU_CLK_GATE, + .parents = { JZ4775_CLK_PCLK }, + .gate = { CGU_REG_CLKGR, 6 }, + }, + + [JZ4775_CLK_I2C2] = { + "i2c2", CGU_CLK_GATE, + .parents = { JZ4775_CLK_PCLK }, + .gate = { CGU_REG_CLKGR, 7 }, + }, + + [JZ4775_CLK_SADC] = { + "sadc", CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK }, + .gate = { CGU_REG_CLKGR, 14 }, + }, + + [JZ4775_CLK_UART0] = { + "uart0", CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK }, + .gate = { CGU_REG_CLKGR, 15 }, + }, + + [JZ4775_CLK_UART1] = { + "uart1", CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK }, + .gate = { CGU_REG_CLKGR, 16 }, + }, + + [JZ4775_CLK_UART2] = { + "uart2", CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK }, + .gate = { CGU_REG_CLKGR, 17 }, + }, + + [JZ4775_CLK_UART3] = { + "uart3", CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK }, + .gate = { CGU_REG_CLKGR, 18 }, + }, + + [JZ4775_CLK_PDMA] = { + "pdma", CGU_CLK_GATE, + .parents = { JZ4775_CLK_EXCLK }, + .gate = { CGU_REG_CLKGR, 20 }, + }, + + [JZ4775_CLK_MAC] = { + "mac", CGU_CLK_GATE, + .parents = { JZ4775_CLK_AHB2 }, + .gate = { CGU_REG_CLKGR, 21 }, + }, +}; + +static void __init jz4775_cgu_init(struct device_node *np) +{ + int retval; + + cgu = ingenic_cgu_new(jz4775_cgu_clocks, + ARRAY_SIZE(jz4775_cgu_clocks), np); + if (!cgu) { + pr_err("%s: failed to initialise CGU\n", __func__); + return; + } + + retval = ingenic_cgu_register_clocks(cgu); + if (retval) { + pr_err("%s: failed to register CGU Clocks\n", __func__); + return; + } + + ingenic_cgu_register_syscore_ops(cgu); +} +/* + * CGU has some children devices, this is useful for probing children devices + * in the case where the device node is compatible with "simple-mfd". + */ +CLK_OF_DECLARE_DRIVER(jz4775_cgu, "ingenic,jz4775-cgu", jz4775_cgu_init);