From patchwork Sun May 22 15:50:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomer Maimon X-Patchwork-Id: 575380 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F46FC433F5 for ; Sun, 22 May 2022 15:58:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236131AbiEVP6m (ORCPT ); Sun, 22 May 2022 11:58:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349405AbiEVP6f (ORCPT ); Sun, 22 May 2022 11:58:35 -0400 Received: from herzl.nuvoton.co.il (unknown [212.199.177.27]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A94E3B2BB; Sun, 22 May 2022 08:58:32 -0700 (PDT) Received: from taln60.nuvoton.co.il (ntil-fw [212.199.177.25]) by herzl.nuvoton.co.il (8.13.8/8.13.8) with ESMTP id 24MFp4Zp031633; Sun, 22 May 2022 18:51:04 +0300 Received: by taln60.nuvoton.co.il (Postfix, from userid 10070) id BA7C263A4A; Sun, 22 May 2022 18:51:04 +0300 (IDT) From: Tomer Maimon To: avifishman70@gmail.com, tali.perry1@gmail.com, joel@jms.id.au, venture@google.com, yuenn@google.com, benjaminfair@google.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, daniel.lezcano@linaro.org, tglx@linutronix.de, wim@linux-watchdog.org, linux@roeck-us.net, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, olof@lixom.net, jirislaby@kernel.org, shawnguo@kernel.org, bjorn.andersson@linaro.org, geert+renesas@glider.be, marcel.ziswiler@toradex.com, vkoul@kernel.org, biju.das.jz@bp.renesas.com, nobuhiro1.iwamatsu@toshiba.co.jp, robert.hancock@calian.com, j.neuschaefer@gmx.net, lkundrak@v3.sk Cc: soc@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-serial@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tomer Maimon Subject: [PATCH v1 08/19] clk: npcm8xx: add clock controller Date: Sun, 22 May 2022 18:50:35 +0300 Message-Id: <20220522155046.260146-9-tmaimon77@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220522155046.260146-1-tmaimon77@gmail.com> References: <20220522155046.260146-1-tmaimon77@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Nuvoton Arbel BMC NPCM7XX contains an integrated clock controller, which generates and supplies clocks to all modules within the BMC. Signed-off-by: Tomer Maimon --- drivers/clk/Kconfig | 7 + drivers/clk/Makefile | 1 + drivers/clk/clk-npcm8xx.c | 767 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 775 insertions(+) create mode 100644 drivers/clk/clk-npcm8xx.c diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 5d596e778ff4..b9f3202de872 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -414,6 +414,13 @@ config COMMON_CLK_K210 help Support for the Canaan Kendryte K210 RISC-V SoC clocks. +config COMMON_CLK_NPCM8XX + tristate "Clock driver for the NPCM8XX SoC Family" + depends on ARCH_NPCM || COMPILE_TEST + depends on OF + help + This driver supports the clocks on the Nuvoton BMC NPCM8XX SoC Family. + source "drivers/clk/actions/Kconfig" source "drivers/clk/analogbits/Kconfig" source "drivers/clk/baikal-t1/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 2bd5ffd595bf..91924f115fdb 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_ARCH_MILBEAUT_M10V) += clk-milbeaut.o obj-$(CONFIG_ARCH_MOXART) += clk-moxart.o obj-$(CONFIG_ARCH_NOMADIK) += clk-nomadik.o obj-$(CONFIG_ARCH_NPCM7XX) += clk-npcm7xx.o +obj-$(CONFIG_COMMON_CLK_NPCM8XX) += clk-npcm8xx.o obj-$(CONFIG_ARCH_NSPIRE) += clk-nspire.o obj-$(CONFIG_COMMON_CLK_OXNAS) += clk-oxnas.o obj-$(CONFIG_COMMON_CLK_PALMAS) += clk-palmas.o diff --git a/drivers/clk/clk-npcm8xx.c b/drivers/clk/clk-npcm8xx.c new file mode 100644 index 000000000000..6d0ab7f97ae6 --- /dev/null +++ b/drivers/clk/clk-npcm8xx.c @@ -0,0 +1,767 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Nuvoton NPCM8xx Clock Generator + * All the clocks are initialized by the bootloader, so this driver allow only + * reading of current settings directly from the hardware. + * + * Copyright (C) 2020 Nuvoton Technologies tomer.maimon@nuvoton.com + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +struct npcm8xx_clk_pll { + struct clk_hw hw; + void __iomem *pllcon; + u8 flags; +}; + +#define to_npcm8xx_clk_pll(_hw) container_of(_hw, struct npcm8xx_clk_pll, hw) + +#define PLLCON_LOKI BIT(31) +#define PLLCON_LOKS BIT(30) +#define PLLCON_FBDV GENMASK(27, 16) +#define PLLCON_OTDV2 GENMASK(15, 13) +#define PLLCON_PWDEN BIT(12) +#define PLLCON_OTDV1 GENMASK(10, 8) +#define PLLCON_INDV GENMASK(5, 0) + +static unsigned long npcm8xx_clk_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct npcm8xx_clk_pll *pll = to_npcm8xx_clk_pll(hw); + unsigned long fbdv, indv, otdv1, otdv2; + unsigned int val; + u64 ret; + + if (parent_rate == 0) { + pr_err("%s: parent rate is zero", __func__); + return 0; + } + + val = readl_relaxed(pll->pllcon); + + indv = FIELD_GET(PLLCON_INDV, val); + fbdv = FIELD_GET(PLLCON_FBDV, val); + otdv1 = FIELD_GET(PLLCON_OTDV1, val); + otdv2 = FIELD_GET(PLLCON_OTDV2, val); + + ret = (u64)parent_rate * fbdv; + do_div(ret, indv * otdv1 * otdv2); + + return ret; +} + +static const struct clk_ops npcm8xx_clk_pll_ops = { + .recalc_rate = npcm8xx_clk_pll_recalc_rate, +}; + +static struct clk_hw * +npcm8xx_clk_register_pll(void __iomem *pllcon, const char *name, + const char *parent_name, unsigned long flags) +{ + struct npcm8xx_clk_pll *pll; + struct clk_init_data init; + struct clk_hw *hw; + int ret; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pr_debug("%s reg, name=%s, p=%s\n", __func__, name, parent_name); + + init.name = name; + init.ops = &npcm8xx_clk_pll_ops; + init.parent_names = &parent_name; + init.num_parents = 1; + init.flags = flags; + + pll->pllcon = pllcon; + pll->hw.init = &init; + + hw = &pll->hw; + + ret = clk_hw_register(NULL, hw); + if (ret) { + kfree(pll); + hw = ERR_PTR(ret); + } + + return hw; +} + +#define NPCM8XX_CLKEN1 (0x00) +#define NPCM8XX_CLKEN2 (0x28) +#define NPCM8XX_CLKEN3 (0x30) +#define NPCM8XX_CLKEN4 (0x70) +#define NPCM8XX_CLKSEL (0x04) +#define NPCM8XX_CLKDIV1 (0x08) +#define NPCM8XX_CLKDIV2 (0x2C) +#define NPCM8XX_CLKDIV3 (0x58) +#define NPCM8XX_CLKDIV4 (0x7C) +#define NPCM8XX_PLLCON0 (0x0C) +#define NPCM8XX_PLLCON1 (0x10) +#define NPCM8XX_PLLCON2 (0x54) +#define NPCM8XX_SWRSTR (0x14) +#define NPCM8XX_IRQWAKECON (0x18) +#define NPCM8XX_IRQWAKEFLAG (0x1C) +#define NPCM8XX_IPSRST1 (0x20) +#define NPCM8XX_IPSRST2 (0x24) +#define NPCM8XX_IPSRST3 (0x34) +#define NPCM8XX_WD0RCR (0x38) +#define NPCM8XX_WD1RCR (0x3C) +#define NPCM8XX_WD2RCR (0x40) +#define NPCM8XX_SWRSTC1 (0x44) +#define NPCM8XX_SWRSTC2 (0x48) +#define NPCM8XX_SWRSTC3 (0x4C) +#define NPCM8XX_SWRSTC4 (0x50) +#define NPCM8XX_CORSTC (0x5C) +#define NPCM8XX_PLLCONG (0x60) +#define NPCM8XX_AHBCKFI (0x64) +#define NPCM8XX_SECCNT (0x68) +#define NPCM8XX_CNTR25M (0x6C) +#define NPCM8XX_THRTL_CNT (0xC0) + +struct npcm8xx_clk_gate_data { + u32 reg; + u8 bit_idx; + const char *name; + const char *parent_name; + unsigned long flags; + /* + * If this clock is exported via DT, set onecell_idx to constant + * defined in include/dt-bindings/clock/nuvoton, NPCM8XX-clock.h for + * this specific clock. Otherwise, set to -1. + */ + int onecell_idx; +}; + +struct npcm8xx_clk_mux_data { + u8 shift; + u8 mask; + u32 *table; + const char *name; + const char * const *parent_names; + u8 num_parents; + unsigned long flags; + /* + * If this clock is exported via DT, set onecell_idx to constant + * defined in include/dt-bindings/clock/nuvoton, NPCM8XX-clock.h for + * this specific clock. Otherwise, set to -1. + */ + int onecell_idx; + +}; + +struct npcm8xx_clk_div_fixed_data { + u8 mult; + u8 div; + const char *name; + const char *parent_name; + u8 clk_divider_flags; + /* + * If this clock is exported via DT, set onecell_idx to constant + * defined in include/dt-bindings/clock/nuvoton, NPCM8XX-clock.h for + * this specific clock. Otherwise, set to -1. + */ + int onecell_idx; +}; + +struct npcm8xx_clk_div_data { + u32 reg; + u8 shift; + u8 width; + const char *name; + const char *parent_name; + u8 clk_divider_flags; + unsigned long flags; + /* + * If this clock is exported via DT, set onecell_idx to constant + * defined in include/dt-bindings/clock/nuvoton, NPCM8XX-clock.h for + * this specific clock. Otherwise, set to -1. + */ + int onecell_idx; +}; + +struct npcm8xx_clk_pll_data { + u32 reg; + const char *name; + const char *parent_name; + unsigned long flags; + /* + * If this clock is exported via DT, set onecell_idx to constant + * defined in include/dt-bindings/clock/nuvoton, NPCM8XX-clock.h for + * this specific clock. Otherwise, set to -1. + */ + int onecell_idx; +}; + +/* + * Single copy of strings used to refer to clocks within this driver indexed by + * above enum. + */ +#define NPCM8XX_CLK_S_REFCLK "refclk" +#define NPCM8XX_CLK_S_SYSBYPCK "sysbypck" +#define NPCM8XX_CLK_S_MCBYPCK "mcbypck" +#define NPCM8XX_CLK_S_GFXBYPCK "gfxbypck" +#define NPCM8XX_CLK_S_PLL0 "pll0" +#define NPCM8XX_CLK_S_PLL1 "pll1" +#define NPCM8XX_CLK_S_PLL1_DIV2 "pll1_div2" +#define NPCM8XX_CLK_S_PLL2 "pll2" +#define NPCM8XX_CLK_S_PLL_GFX "pll_gfx" +#define NPCM8XX_CLK_S_PLL2_DIV2 "pll2_div2" +#define NPCM8XX_CLK_S_PIX_MUX "gfx_pixel" +#define NPCM8XX_CLK_S_GPRFSEL_MUX "gprfsel_mux" +#define NPCM8XX_CLK_S_MC_MUX "mc_phy" +#define NPCM8XX_CLK_S_CPU_MUX "cpu" /*AKA system clock.*/ +#define NPCM8XX_CLK_S_MC "mc" +#define NPCM8XX_CLK_S_AXI "axi" /*AKA CLK2*/ +#define NPCM8XX_CLK_S_AHB "ahb" /*AKA CLK4*/ +#define NPCM8XX_CLK_S_CLKOUT_MUX "clkout_mux" +#define NPCM8XX_CLK_S_UART_MUX "uart_mux" +#define NPCM8XX_CLK_S_UART2_MUX "uart2_mux" +#define NPCM8XX_CLK_S_TIM_MUX "timer_mux" +#define NPCM8XX_CLK_S_PRE_ADC_MUX "pre_adc_mux" +#define NPCM8XX_CLK_S_SD_MUX "sd_mux" +#define NPCM8XX_CLK_S_GFXM_MUX "gfxm_mux" +#define NPCM8XX_CLK_S_SU_MUX "serial_usb_mux" +#define NPCM8XX_CLK_S_DVC_MUX "dvc_mux" +#define NPCM8XX_CLK_S_GFX_MUX "gfx_mux" +#define NPCM8XX_CLK_S_ADC_MUX "adc_mux" +#define NPCM8XX_CLK_S_GFX_PIXEL "gfx_pixel" +#define NPCM8XX_CLK_S_SPI0 "spi0" +#define NPCM8XX_CLK_S_SPI1 "spi1" +#define NPCM8XX_CLK_S_SPI3 "spi3" +#define NPCM8XX_CLK_S_SPIX "spix" +#define NPCM8XX_CLK_S_APB1 "apb1" +#define NPCM8XX_CLK_S_APB2 "apb2" +#define NPCM8XX_CLK_S_APB3 "apb3" +#define NPCM8XX_CLK_S_APB4 "apb4" +#define NPCM8XX_CLK_S_APB5 "apb5" +#define NPCM8XX_CLK_S_APB19 "apb19" +#define NPCM8XX_CLK_S_TOCK "tock" +#define NPCM8XX_CLK_S_CLKOUT "clkout" +#define NPCM8XX_CLK_S_PRE_ADC "pre adc" +#define NPCM8XX_CLK_S_UART "uart" +#define NPCM8XX_CLK_S_UART2 "uart2" +#define NPCM8XX_CLK_S_TIMER "timer" +#define NPCM8XX_CLK_S_MMC "mmc" +#define NPCM8XX_CLK_S_SDHC "sdhc" +#define NPCM8XX_CLK_S_ADC "adc" +#define NPCM8XX_CLK_S_AMBA "amba" +#define NPCM8XX_CLK_S_GFX "gfx0_gfx1_mem" +#define NPCM8XX_CLK_S_USBIF "serial_usbif" +#define NPCM8XX_CLK_S_USB_HOST "usb_host" +#define NPCM8XX_CLK_S_USB_BRIDGE "usb_bridge" +#define NPCM8XX_CLK_S_PCI "pci" +#define NPCM8XX_CLK_S_TH "th" +#define NPCM8XX_CLK_S_ATB "atb" +#define NPCM8XX_CLK_S_PRE_CLK "pre_clk" + +#define NPCM8XX_CLK_S_RG_MUX "rg_mux" +#define NPCM8XX_CLK_S_RCP_MUX "rcp_mux" +#define NPCM8XX_CLK_S_RG "rg" +#define NPCM8XX_CLK_S_RCP "rcp" + +static u32 pll_mux_table[] = {0, 1, 2, 3}; +static const char * const pll_mux_parents[] __initconst = { + NPCM8XX_CLK_S_PLL0, + NPCM8XX_CLK_S_PLL1, + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_PLL2_DIV2, +}; + +static u32 cpuck_mux_table[] = {0, 1, 2, 3, 7}; +static const char * const cpuck_mux_parents[] __initconst = { + NPCM8XX_CLK_S_PLL0, + NPCM8XX_CLK_S_PLL1, + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_SYSBYPCK, + NPCM8XX_CLK_S_PLL2, +}; + +static u32 pixcksel_mux_table[] = {0, 2}; +static const char * const pixcksel_mux_parents[] __initconst = { + NPCM8XX_CLK_S_PLL_GFX, + NPCM8XX_CLK_S_REFCLK, +}; + +static u32 sucksel_mux_table[] = {2, 3}; +static const char * const sucksel_mux_parents[] __initconst = { + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_PLL2_DIV2, +}; + +static u32 mccksel_mux_table[] = {0, 2, 3}; +static const char * const mccksel_mux_parents[] __initconst = { + NPCM8XX_CLK_S_PLL1_DIV2, + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_MCBYPCK, +}; + +static u32 clkoutsel_mux_table[] = {0, 1, 2, 3, 4}; +static const char * const clkoutsel_mux_parents[] __initconst = { + NPCM8XX_CLK_S_PLL0, + NPCM8XX_CLK_S_PLL1, + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_PLL_GFX, // divided by 2 + NPCM8XX_CLK_S_PLL2_DIV2, +}; + +static u32 gfxmsel_mux_table[] = {2, 3}; +static const char * const gfxmsel_mux_parents[] __initconst = { + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_PLL2_DIV2, +}; + +static u32 dvcssel_mux_table[] = {2, 3}; +static const char * const dvcssel_mux_parents[] __initconst = { + NPCM8XX_CLK_S_REFCLK, + NPCM8XX_CLK_S_PLL2, +}; + +static const struct npcm8xx_clk_pll_data npcm8xx_plls[] __initconst = { + {NPCM8XX_PLLCON0, NPCM8XX_CLK_S_PLL0, NPCM8XX_CLK_S_REFCLK, 0, -1}, + + {NPCM8XX_PLLCON1, NPCM8XX_CLK_S_PLL1, + NPCM8XX_CLK_S_REFCLK, 0, -1}, + + {NPCM8XX_PLLCON2, NPCM8XX_CLK_S_PLL2, + NPCM8XX_CLK_S_REFCLK, 0, -1}, + + {NPCM8XX_PLLCONG, NPCM8XX_CLK_S_PLL_GFX, + NPCM8XX_CLK_S_REFCLK, 0, -1}, +}; + +static const struct npcm8xx_clk_mux_data npcm8xx_muxes[] __initconst = { + {0, GENMASK(1, 0), cpuck_mux_table, NPCM8XX_CLK_S_CPU_MUX, + cpuck_mux_parents, ARRAY_SIZE(cpuck_mux_parents), CLK_IS_CRITICAL, + NPCM8XX_CLK_CPU}, + + {4, GENMASK(1, 0), pixcksel_mux_table, NPCM8XX_CLK_S_PIX_MUX, + pixcksel_mux_parents, ARRAY_SIZE(pixcksel_mux_parents), 0, + NPCM8XX_CLK_GFX_PIXEL}, + + {6, GENMASK(1, 0), pll_mux_table, NPCM8XX_CLK_S_SD_MUX, + pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1}, + + {8, GENMASK(1, 0), pll_mux_table, NPCM8XX_CLK_S_UART_MUX, + pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1}, + + {10, GENMASK(1, 0), sucksel_mux_table, NPCM8XX_CLK_S_SU_MUX, + sucksel_mux_parents, ARRAY_SIZE(sucksel_mux_parents), 0, -1}, + + {12, GENMASK(1, 0), mccksel_mux_table, NPCM8XX_CLK_S_MC_MUX, + mccksel_mux_parents, ARRAY_SIZE(mccksel_mux_parents), 0, -1}, + + {14, GENMASK(1, 0), pll_mux_table, NPCM8XX_CLK_S_ADC_MUX, + pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1}, + + {16, GENMASK(1, 0), pll_mux_table, NPCM8XX_CLK_S_GFX_MUX, + pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1}, + + {18, GENMASK(2, 0), clkoutsel_mux_table, NPCM8XX_CLK_S_CLKOUT_MUX, + clkoutsel_mux_parents, ARRAY_SIZE(clkoutsel_mux_parents), 0, -1}, + + {21, GENMASK(1, 0), gfxmsel_mux_table, NPCM8XX_CLK_S_GFXM_MUX, + gfxmsel_mux_parents, ARRAY_SIZE(gfxmsel_mux_parents), 0, -1}, + + {23, GENMASK(1, 0), dvcssel_mux_table, NPCM8XX_CLK_S_DVC_MUX, + dvcssel_mux_parents, ARRAY_SIZE(dvcssel_mux_parents), 0, -1}, + + {25, GENMASK(1, 0), pll_mux_table, NPCM8XX_CLK_S_RG_MUX, + pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1}, + + {27, GENMASK(1, 0), pll_mux_table, NPCM8XX_CLK_S_RCP_MUX, + pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1}, +}; + +/* fixed ratio dividers (no register): */ +static const struct npcm8xx_clk_div_fixed_data npcm8xx_divs_fx[] __initconst = { + { 1, 2, NPCM8XX_CLK_S_MC, NPCM8XX_CLK_S_MC_MUX, 0, NPCM8XX_CLK_MC}, + { 1, 2, NPCM8XX_CLK_S_AXI, NPCM8XX_CLK_S_TH, 0, NPCM8XX_CLK_AXI}, + { 1, 2, NPCM8XX_CLK_S_ATB, NPCM8XX_CLK_S_AXI, 0, NPCM8XX_CLK_ATB}, + { 1, 2, NPCM8XX_CLK_S_PRE_CLK, NPCM8XX_CLK_S_CPU_MUX, 0, -1}, + { 1, 2, NPCM8XX_CLK_S_PLL1_DIV2, NPCM8XX_CLK_S_PLL1, 0, -1}, + { 1, 2, NPCM8XX_CLK_S_PLL2_DIV2, NPCM8XX_CLK_S_PLL2, 0, -1}, +}; + +/* configurable dividers: */ +static const struct npcm8xx_clk_div_data npcm8xx_divs[] __initconst = { + {NPCM8XX_CLKDIV1, 28, 3, NPCM8XX_CLK_S_ADC, NPCM8XX_CLK_S_PRE_ADC, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, + NPCM8XX_CLK_ADC}, + /*30-28 ADCCKDIV*/ + {NPCM8XX_CLKDIV1, 26, 2, NPCM8XX_CLK_S_AHB, NPCM8XX_CLK_S_PRE_CLK, + CLK_DIVIDER_READ_ONLY, CLK_IS_CRITICAL, NPCM8XX_CLK_AHB}, + /*28-26 CLK4DIV*/ + {NPCM8XX_CLKDIV1, 21, 5, NPCM8XX_CLK_S_PRE_ADC, + NPCM8XX_CLK_S_ADC_MUX, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_PRE_ADC}, + /*25-21 PRE-ADCCKDIV*/ + {NPCM8XX_CLKDIV1, 16, 5, NPCM8XX_CLK_S_UART, + NPCM8XX_CLK_S_UART_MUX, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_UART}, + /*20-16 UARTDIV*/ + {NPCM8XX_CLKDIV1, 11, 5, NPCM8XX_CLK_S_MMC, + NPCM8XX_CLK_S_SD_MUX, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_MMC}, + /*15-11 MMCCKDIV*/ + {NPCM8XX_CLKDIV1, 6, 5, NPCM8XX_CLK_S_SPI3, + NPCM8XX_CLK_S_AHB, 0, 0, NPCM8XX_CLK_SPI3}, + /*10-6 AHB3CKDIV*/ + {NPCM8XX_CLKDIV1, 2, 4, NPCM8XX_CLK_S_PCI, + NPCM8XX_CLK_S_GFX_MUX, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_PCI}, + /*5-2 PCICKDIV*/ + + {NPCM8XX_CLKDIV2, 30, 2, NPCM8XX_CLK_S_APB4, NPCM8XX_CLK_S_AHB, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, + NPCM8XX_CLK_APB4}, + /*31-30 APB4CKDIV*/ + {NPCM8XX_CLKDIV2, 28, 2, NPCM8XX_CLK_S_APB3, NPCM8XX_CLK_S_AHB, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, + NPCM8XX_CLK_APB3}, + /*29-28 APB3CKDIV*/ + {NPCM8XX_CLKDIV2, 26, 2, NPCM8XX_CLK_S_APB2, NPCM8XX_CLK_S_AHB, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, + NPCM8XX_CLK_APB2}, + /*28-26 APB2CKDIV*/ + {NPCM8XX_CLKDIV2, 24, 2, NPCM8XX_CLK_S_APB1, NPCM8XX_CLK_S_AHB, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, + NPCM8XX_CLK_APB1}, + /*25-24 APB1CKDIV*/ + {NPCM8XX_CLKDIV2, 22, 2, NPCM8XX_CLK_S_APB5, NPCM8XX_CLK_S_AHB, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, + NPCM8XX_CLK_APB5}, + /*23-22 APB5CKDIV*/ + {NPCM8XX_CLKDIV2, 16, 5, NPCM8XX_CLK_S_CLKOUT, NPCM8XX_CLK_S_CLKOUT_MUX, + CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_CLKOUT}, + /*20-16 CLKOUTDIV*/ + {NPCM8XX_CLKDIV2, 13, 3, NPCM8XX_CLK_S_GFX, NPCM8XX_CLK_S_GFX_MUX, + CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_GFX}, + /*15-13 GFXCKDIV*/ + {NPCM8XX_CLKDIV2, 8, 5, NPCM8XX_CLK_S_USB_BRIDGE, NPCM8XX_CLK_S_SU_MUX, + CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_SU}, + /*12-8 SUCKDIV*/ + {NPCM8XX_CLKDIV2, 4, 4, NPCM8XX_CLK_S_USB_HOST, NPCM8XX_CLK_S_SU_MUX, + CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_SU48}, + /*8-4 SU48CKDIV*/ + {NPCM8XX_CLKDIV2, 0, 4, NPCM8XX_CLK_S_SDHC, + NPCM8XX_CLK_S_SD_MUX, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_SDHC} + ,/*3-0 SD1CKDIV*/ + + {NPCM8XX_CLKDIV3, 16, 8, NPCM8XX_CLK_S_SPI1, + NPCM8XX_CLK_S_AHB, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_SPI1}, + /*23-16 SPI1CKDV*/ + {NPCM8XX_CLKDIV3, 11, 5, NPCM8XX_CLK_S_UART2, + NPCM8XX_CLK_S_UART_MUX, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_UART2}, + /*15-11 UARTDIV2*/ + {NPCM8XX_CLKDIV3, 6, 5, NPCM8XX_CLK_S_SPI0, + NPCM8XX_CLK_S_AHB, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_SPI0}, + /*10-6 SPI0CKDV*/ + {NPCM8XX_CLKDIV3, 1, 5, NPCM8XX_CLK_S_SPIX, + NPCM8XX_CLK_S_AHB, CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_SPIX}, + + /*5-1 SPIXCKDV*/ + {NPCM8XX_CLKDIV4, 28, 4, NPCM8XX_CLK_S_RG, NPCM8XX_CLK_S_RG_MUX, + CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_RG}, + + /*31-28 RGREFDIV*/ + {NPCM8XX_CLKDIV4, 12, 4, NPCM8XX_CLK_S_RCP, NPCM8XX_CLK_S_RCP_MUX, + CLK_DIVIDER_READ_ONLY, 0, NPCM8XX_CLK_RCP}, + + /*15-12 RCPREFDIV*/ + {NPCM8XX_THRTL_CNT, 0, 2, NPCM8XX_CLK_S_TH, NPCM8XX_CLK_S_CPU_MUX, + CLK_DIVIDER_READ_ONLY | CLK_DIVIDER_POWER_OF_TWO, 0, NPCM8XX_CLK_TH}, + /*1-0 TH_DIV*/ +}; + +static const struct npcm8xx_clk_gate_data npcm8xx_gates[] __initconst = { + {NPCM8XX_CLKEN1, 31, "smb1-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 30, "smb0-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 29, "smb7-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 28, "smb6-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 27, "adc-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN1, 26, "wdt-gate", NPCM8XX_CLK_S_TIMER, 0}, + {NPCM8XX_CLKEN1, 25, "usbdev3-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 24, "usbdev6-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 23, "usbdev5-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 22, "usbdev4-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 21, "gmac4-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 20, "timer5_9-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN1, 19, "timer0_4-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN1, 18, "pwmm0-gate", NPCM8XX_CLK_S_APB3, 0}, + {NPCM8XX_CLKEN1, 17, "huart-gate", NPCM8XX_CLK_S_UART, 0}, + {NPCM8XX_CLKEN1, 16, "smb5-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 15, "smb4-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 14, "smb3-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 13, "smb2-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN1, 12, "mc-gate", NPCM8XX_CLK_S_MC, 0}, + {NPCM8XX_CLKEN1, 11, "uart01-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN1, 10, "aes-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 9, "peci-gate", NPCM8XX_CLK_S_APB3, 0}, + {NPCM8XX_CLKEN1, 8, "usbdev2-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 7, "uart23-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN1, 6, "gmac3-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 5, "usbdev1-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 4, "shm-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 3, "gdma0-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 2, "kcs-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN1, 1, "spi3-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN1, 0, "spi0-gate", NPCM8XX_CLK_S_AHB, 0}, + + {NPCM8XX_CLKEN2, 31, "cp-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 30, "tock-gate", NPCM8XX_CLK_S_TOCK, 0}, + /* bit 29 is reserved */ + {NPCM8XX_CLKEN2, 28, "gmac1-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 27, "usbif-gate", NPCM8XX_CLK_S_USBIF, 0}, + {NPCM8XX_CLKEN2, 26, "usbhost1-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 25, "gmac2-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 24, "spi1-gate", NPCM8XX_CLK_S_APB5, 0}, + {NPCM8XX_CLKEN2, 23, "pspi2-gate", NPCM8XX_CLK_S_APB5, 0}, + /* bit 22 is reserved */ + {NPCM8XX_CLKEN2, 21, "3des-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 20, "bt-gate", NPCM8XX_CLK_S_APB3, 0}, + {NPCM8XX_CLKEN2, 19, "siox2-gate", NPCM8XX_CLK_S_APB3, 0}, + {NPCM8XX_CLKEN2, 18, "siox1-gate", NPCM8XX_CLK_S_APB3, 0}, + {NPCM8XX_CLKEN2, 17, "viruart2-gate", NPCM8XX_CLK_S_APB5, 0}, + {NPCM8XX_CLKEN2, 16, "viruart1-gate", NPCM8XX_CLK_S_APB5, 0}, + /* bit 15 is reserved */ + {NPCM8XX_CLKEN2, 14, "vcd-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 13, "ece-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 12, "vdma-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 11, "ahbpcibrg-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 10, "gfxsys-gate", NPCM8XX_CLK_S_APB1, 0}, + //{NPCM8XX_CLKEN2, 9, "sdhc-gate", NPCM8XX_CLK_S_AHB, 0}, + /* bit 9 is reserved */ + {NPCM8XX_CLKEN2, 8, "mmc-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN2, 7, "mft7-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 6, "mft6-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 5, "mft5-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 4, "mft4-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 3, "mft3-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 2, "mft2-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 1, "mft1-gate", NPCM8XX_CLK_S_APB4, 0}, + {NPCM8XX_CLKEN2, 0, "mft0-gate", NPCM8XX_CLK_S_APB4, 0}, + + {NPCM8XX_CLKEN3, 31, "gpiom7-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 30, "gpiom6-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 29, "gpiom5-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 28, "gpiom4-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 27, "gpiom3-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 26, "gpiom2-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 25, "gpiom1-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 24, "gpiom0-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 23, "espi-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 22, "smb11-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 21, "smb10-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 20, "smb9-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 19, "smb8-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 18, "smb15-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 17, "rng-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 16, "timer10_14-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN3, 15, "pcirc-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 14, "sececc-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 13, "sha-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 12, "smb14-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 11, "gdma2-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 10, "gdma1-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 9, "pcimbx-gate", NPCM8XX_CLK_S_AHB, 0}, + /* bit 8 is reserved */ + {NPCM8XX_CLKEN3, 7, "usbdev9-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 6, "usbdev8-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 5, "usbdev7-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 4, "usbdev0-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 3, "smb13-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 2, "spix-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN3, 1, "smb12-gate", NPCM8XX_CLK_S_APB2, 0}, + {NPCM8XX_CLKEN3, 0, "pwmm1-gate", NPCM8XX_CLK_S_APB3, 0}, + + {NPCM8XX_CLKEN4, 31, "usbhost2-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN4, 30, "jtm2-gate", NPCM8XX_CLK_S_APB5, 0}, + {NPCM8XX_CLKEN4, 29, "jtm1-gate", NPCM8XX_CLK_S_APB5, 0}, + {NPCM8XX_CLKEN4, 28, "pwmm2-gate", NPCM8XX_CLK_S_APB3, 0}, + /* bit 27 is reserved */ + /* bit 26 is reserved */ + /* bit 25 is reserved */ + {NPCM8XX_CLKEN4, 24, "smb26-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 23, "smb25-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 22, "smb24-gate", NPCM8XX_CLK_S_APB19, 0}, + /* bit 21 is reserved */ + /* bit 20 is reserved */ + {NPCM8XX_CLKEN4, 19, "pcimbx2-gate", NPCM8XX_CLK_S_AHB, 0}, + {NPCM8XX_CLKEN4, 18, "uart6-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN4, 17, "uart5-gate", NPCM8XX_CLK_S_APB1, 0}, + {NPCM8XX_CLKEN4, 16, "uart4-gate", NPCM8XX_CLK_S_APB1, 0}, + /* bit 15 is reserved */ + /* bit 14 is reserved */ + {NPCM8XX_CLKEN4, 13, "i3c5-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 12, "i3c4-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 11, "i3c3-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 10, "i3c2-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 9, "i3c1-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 8, "i3c0-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 7, "smb23-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 6, "smb22-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 5, "smb21-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 4, "smb20-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 3, "smb19-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 2, "smb18-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 1, "smb17-gate", NPCM8XX_CLK_S_APB19, 0}, + {NPCM8XX_CLKEN4, 0, "smb16-gate", NPCM8XX_CLK_S_APB19, 0}, + +}; + +static DEFINE_SPINLOCK(npcm8xx_clk_lock); + +static void __init npcm8xx_clk_init(struct device_node *clk_np) +{ + struct clk_hw_onecell_data *npcm8xx_clk_data; + void __iomem *clk_base; + struct resource res; + struct clk_hw *hw; + int ret; + int i; + + ret = of_address_to_resource(clk_np, 0, &res); + if (ret) { + pr_err("%pOFn: failed to get resource, ret %d\n", clk_np, ret); + return; + } + + clk_base = ioremap(res.start, resource_size(&res)); + if (!clk_base) + goto npcm8xx_init_error; + + npcm8xx_clk_data = kzalloc(struct_size(npcm8xx_clk_data, hws, + NPCM8XX_NUM_CLOCKS), GFP_KERNEL); + if (!npcm8xx_clk_data) + goto npcm8xx_init_np_err; + + npcm8xx_clk_data->num = NPCM8XX_NUM_CLOCKS; + + for (i = 0; i < NPCM8XX_NUM_CLOCKS; i++) + npcm8xx_clk_data->hws[i] = ERR_PTR(-EPROBE_DEFER); + + /* Register plls */ + for (i = 0; i < ARRAY_SIZE(npcm8xx_plls); i++) { + const struct npcm8xx_clk_pll_data *pll_data = &npcm8xx_plls[i]; + + hw = npcm8xx_clk_register_pll(clk_base + pll_data->reg, + pll_data->name, + pll_data->parent_name, + pll_data->flags); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register pll\n"); + goto npcm8xx_init_fail; + } + + if (pll_data->onecell_idx >= 0) + npcm8xx_clk_data->hws[pll_data->onecell_idx] = hw; + } + + /* Register fixed dividers */ + hw = clk_hw_register_fixed_factor(NULL, NPCM8XX_CLK_S_PLL1_DIV2, + NPCM8XX_CLK_S_PLL1, 0, 1, 2); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register fixed div\n"); + goto npcm8xx_init_fail; + } + + hw = clk_hw_register_fixed_factor(NULL, NPCM8XX_CLK_S_PLL2_DIV2, + NPCM8XX_CLK_S_PLL2, 0, 1, 2); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register pll div2\n"); + goto npcm8xx_init_fail; + } + + hw = clk_hw_register_fixed_factor(NULL, NPCM8XX_CLK_S_PRE_CLK, + NPCM8XX_CLK_S_CPU_MUX, 0, 1, 2); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register ckclk div2\n"); + goto npcm8xx_init_fail; + } + + hw = clk_hw_register_fixed_factor(NULL, NPCM8XX_CLK_S_AXI, + NPCM8XX_CLK_S_TH, 0, 1, 2); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register axi div2\n"); + goto npcm8xx_init_fail; + } + + hw = clk_hw_register_fixed_factor(NULL, NPCM8XX_CLK_S_ATB, + NPCM8XX_CLK_S_AXI, 0, 1, 2); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register atb div2\n"); + goto npcm8xx_init_fail; + } + + /* Register muxes */ + for (i = 0; i < ARRAY_SIZE(npcm8xx_muxes); i++) { + const struct npcm8xx_clk_mux_data *mux_data = &npcm8xx_muxes[i]; + + hw = clk_hw_register_mux_table(NULL, mux_data->name, + mux_data->parent_names, + mux_data->num_parents, + mux_data->flags, + clk_base + NPCM8XX_CLKSEL, + mux_data->shift, + mux_data->mask, 0, + mux_data->table, + &npcm8xx_clk_lock); + + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register mux\n"); + goto npcm8xx_init_fail; + } + + if (mux_data->onecell_idx >= 0) + npcm8xx_clk_data->hws[mux_data->onecell_idx] = hw; + } + + /* Register clock dividers specified in npcm8xx_divs */ + for (i = 0; i < ARRAY_SIZE(npcm8xx_divs); i++) { + const struct npcm8xx_clk_div_data *div_data = &npcm8xx_divs[i]; + + hw = clk_hw_register_divider(NULL, div_data->name, + div_data->parent_name, + div_data->flags, + clk_base + div_data->reg, + div_data->shift, div_data->width, + div_data->clk_divider_flags, + &npcm8xx_clk_lock); + if (IS_ERR(hw)) { + pr_err("npcm8xx_clk: Can't register div table\n"); + goto npcm8xx_init_fail; + } + + if (div_data->onecell_idx >= 0) + npcm8xx_clk_data->hws[div_data->onecell_idx] = hw; + } + + ret = of_clk_add_hw_provider(clk_np, of_clk_hw_onecell_get, + npcm8xx_clk_data); + if (ret) + pr_err("failed to add DT provider: %d\n", ret); + + of_node_put(clk_np); + + return; + +npcm8xx_init_fail: + kfree(npcm8xx_clk_data->hws); +npcm8xx_init_np_err: + iounmap(clk_base); +npcm8xx_init_error: + of_node_put(clk_np); +} + +CLK_OF_DECLARE(npcm8xx_clk_init, "nuvoton,npcm845-clk", npcm8xx_clk_init);