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Message-ID: <20150603233200.6017.91687@quantum>
Date: Wed, 03 Jun 2015 16:32:00 -0700
From: Michael Turquette <mturquette@...aro.org>
To: Paul Burton <paul.burton@...tec.com>, linux-mips@...ux-mips.org
Cc: "Paul Burton" <paul.burton@...tec.com>,
"Lars-Peter Clausen" <lars@...afoo.de>,
"Ralf Baechle" <ralf@...ux-mips.org>,
"Stephen Boyd" <sboyd@...eaurora.org>, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 30/37] clk: ingenic: add JZ4780 CGU support
Quoting Paul Burton (2015-05-24 08:11:40)
> Add support for the clocks provided by the CGU in the Ingenic JZ4780
> SoC, making use of the SoC-agnostic CGU code to do the heavy lifting.
>
> Signed-off-by: Paul Burton <paul.burton@...tec.com>
> Co-authored-by: Paul Cercueil <paul@...pouillou.net>
> Cc: Lars-Peter Clausen <lars@...afoo.de>
> Cc: Mike Turquette <mturquette@...aro.org>
> Cc: Ralf Baechle <ralf@...ux-mips.org>
> Cc: Stephen Boyd <sboyd@...eaurora.org>
> Cc: linux-clk@...r.kernel.org
> Cc: linux-mips@...ux-mips.org
For patches 24-30:
Acked-by: Michael Turquette <mturquette@...aro.org>
Are you wanting to take this all through the same tree, or are you happy
for the clock patches to get picked into clk-next?
Regards,
Mike
> ---
>
> Changes in v5:
> - Declare jz4780_otg_phy_ops static.
> - Drop setting the parent of the UHC clock during probe - USB isn't
> supported as of this patchset anyway, so it can be dealt with in
> whatever's deemed the best way later.
>
> Changes in v4:
> - Return on ingenic_cgu_new or ingenic_cgu_register_clocks failure.
> - Initialise all unused clock parent fields to -1. Zero initialisation
> works out so long as the common clock framework only ever attempts
> to set a parent clock that was specified in the parent array (which
> is OK), and so long as the hardware state is always valid according
> to the clock description (which is hopefully OK). Initialising to -1
> makes sense for resilience should the latter ever not be the case,
> and to avoid that bit of implicit magic knowledge.
>
> Changes in v3:
> - Rebase.
>
> Changes in v2:
> - Remove FSF address per checkpatch (ZubairLK).
>
> drivers/clk/ingenic/Makefile | 1 +
> drivers/clk/ingenic/jz4780-cgu.c | 733 +++++++++++++++++++++++++++++++++++++++
> 2 files changed, 734 insertions(+)
> create mode 100644 drivers/clk/ingenic/jz4780-cgu.c
>
> diff --git a/drivers/clk/ingenic/Makefile b/drivers/clk/ingenic/Makefile
> index e6db7da..cd47b06 100644
> --- a/drivers/clk/ingenic/Makefile
> +++ b/drivers/clk/ingenic/Makefile
> @@ -1,2 +1,3 @@
> obj-y += cgu.o
> obj-$(CONFIG_MACH_JZ4740) += jz4740-cgu.o
> +obj-$(CONFIG_MACH_JZ4780) += jz4780-cgu.o
> diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c
> new file mode 100644
> index 0000000..431f962
> --- /dev/null
> +++ b/drivers/clk/ingenic/jz4780-cgu.c
> @@ -0,0 +1,733 @@
> +/*
> + * Ingenic JZ4780 SoC CGU driver
> + *
> + * Copyright (c) 2013-2015 Imagination Technologies
> + * Author: Paul Burton <paul.burton@...tec.com>
> + *
> + * 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.
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/delay.h>
> +#include <linux/of.h>
> +#include <dt-bindings/clock/jz4780-cgu.h>
> +#include "cgu.h"
> +
> +/* CGU register offsets */
> +#define CGU_REG_CLOCKCONTROL 0x00
> +#define CGU_REG_PLLCONTROL 0x0c
> +#define CGU_REG_APLL 0x10
> +#define CGU_REG_MPLL 0x14
> +#define CGU_REG_EPLL 0x18
> +#define CGU_REG_VPLL 0x1c
> +#define CGU_REG_CLKGR0 0x20
> +#define CGU_REG_OPCR 0x24
> +#define CGU_REG_CLKGR1 0x28
> +#define CGU_REG_DDRCDR 0x2c
> +#define CGU_REG_VPUCDR 0x30
> +#define CGU_REG_USBPCR 0x3c
> +#define CGU_REG_USBRDT 0x40
> +#define CGU_REG_USBVBFIL 0x44
> +#define CGU_REG_USBPCR1 0x48
> +#define CGU_REG_LP0CDR 0x54
> +#define CGU_REG_I2SCDR 0x60
> +#define CGU_REG_LP1CDR 0x64
> +#define CGU_REG_MSC0CDR 0x68
> +#define CGU_REG_UHCCDR 0x6c
> +#define CGU_REG_SSICDR 0x74
> +#define CGU_REG_CIMCDR 0x7c
> +#define CGU_REG_PCMCDR 0x84
> +#define CGU_REG_GPUCDR 0x88
> +#define CGU_REG_HDMICDR 0x8c
> +#define CGU_REG_MSC1CDR 0xa4
> +#define CGU_REG_MSC2CDR 0xa8
> +#define CGU_REG_BCHCDR 0xac
> +#define CGU_REG_CLOCKSTATUS 0xd4
> +
> +/* bits within the OPCR register */
> +#define OPCR_SPENDN0 (1 << 7)
> +#define OPCR_SPENDN1 (1 << 6)
> +
> +/* bits within the USBPCR register */
> +#define USBPCR_USB_MODE BIT(31)
> +#define USBPCR_IDPULLUP_MASK (0x3 << 28)
> +#define USBPCR_COMMONONN BIT(25)
> +#define USBPCR_VBUSVLDEXT BIT(24)
> +#define USBPCR_VBUSVLDEXTSEL BIT(23)
> +#define USBPCR_POR BIT(22)
> +#define USBPCR_OTG_DISABLE BIT(20)
> +#define USBPCR_COMPDISTUNE_MASK (0x7 << 17)
> +#define USBPCR_OTGTUNE_MASK (0x7 << 14)
> +#define USBPCR_SQRXTUNE_MASK (0x7 << 11)
> +#define USBPCR_TXFSLSTUNE_MASK (0xf << 7)
> +#define USBPCR_TXPREEMPHTUNE BIT(6)
> +#define USBPCR_TXHSXVTUNE_MASK (0x3 << 4)
> +#define USBPCR_TXVREFTUNE_MASK 0xf
> +
> +/* bits within the USBPCR1 register */
> +#define USBPCR1_REFCLKSEL_SHIFT 26
> +#define USBPCR1_REFCLKSEL_MASK (0x3 << USBPCR1_REFCLKSEL_SHIFT)
> +#define USBPCR1_REFCLKSEL_CORE (0x2 << USBPCR1_REFCLKSEL_SHIFT)
> +#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_USB_SEL BIT(28)
> +#define USBPCR1_WORD_IF0 BIT(19)
> +#define USBPCR1_WORD_IF1 BIT(18)
> +
> +/* bits within the USBRDT register */
> +#define USBRDT_VBFIL_LD_EN BIT(25)
> +#define USBRDT_USBRDT_MASK 0x7fffff
> +
> +/* bits within the USBVBFIL register */
> +#define USBVBFIL_IDDIGFIL_SHIFT 16
> +#define USBVBFIL_IDDIGFIL_MASK (0xffff << USBVBFIL_IDDIGFIL_SHIFT)
> +#define USBVBFIL_USBVBFIL_MASK (0xffff)
> +
> +static struct ingenic_cgu *cgu;
> +
> +static u8 jz4780_otg_phy_get_parent(struct clk_hw *hw)
> +{
> + /* we only use CLKCORE, revisit if that ever changes */
> + return 0;
> +}
> +
> +static int jz4780_otg_phy_set_parent(struct clk_hw *hw, u8 idx)
> +{
> + unsigned long flags;
> + u32 usbpcr1;
> +
> + if (idx > 0)
> + return -EINVAL;
> +
> + spin_lock_irqsave(&cgu->lock, flags);
> +
> + usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
> + usbpcr1 &= ~USBPCR1_REFCLKSEL_MASK;
> + /* we only use CLKCORE */
> + usbpcr1 |= USBPCR1_REFCLKSEL_CORE;
> + writel(usbpcr1, cgu->base + CGU_REG_USBPCR1);
> +
> + spin_unlock_irqrestore(&cgu->lock, flags);
> + return 0;
> +}
> +
> +static unsigned long jz4780_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;
> + }
> +
> + BUG();
> + return parent_rate;
> +}
> +
> +static long jz4780_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 jz4780_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 struct clk_ops jz4780_otg_phy_ops = {
> + .get_parent = jz4780_otg_phy_get_parent,
> + .set_parent = jz4780_otg_phy_set_parent,
> +
> + .recalc_rate = jz4780_otg_phy_recalc_rate,
> + .round_rate = jz4780_otg_phy_round_rate,
> + .set_rate = jz4780_otg_phy_set_rate,
> +};
> +
> +static const s8 pll_od_encoding[16] = {
> + 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
> + 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
> +};
> +
> +static const struct ingenic_cgu_clk_info jz4780_cgu_clocks[] = {
> +
> + /* External clocks */
> +
> + [JZ4780_CLK_EXCLK] = { "ext", CGU_CLK_EXT },
> + [JZ4780_CLK_RTCLK] = { "rtc", CGU_CLK_EXT },
> +
> + /* PLLs */
> +
> +#define DEF_PLL(name) { \
> + .reg = CGU_REG_ ## name, \
> + .m_shift = 19, \
> + .m_bits = 13, \
> + .m_offset = 1, \
> + .n_shift = 13, \
> + .n_bits = 6, \
> + .n_offset = 1, \
> + .od_shift = 9, \
> + .od_bits = 4, \
> + .od_max = 16, \
> + .od_encoding = pll_od_encoding, \
> + .stable_bit = 6, \
> + .bypass_bit = 1, \
> + .enable_bit = 0, \
> +}
> +
> + [JZ4780_CLK_APLL] = {
> + "apll", CGU_CLK_PLL,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .pll = DEF_PLL(APLL),
> + },
> +
> + [JZ4780_CLK_MPLL] = {
> + "mpll", CGU_CLK_PLL,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .pll = DEF_PLL(MPLL),
> + },
> +
> + [JZ4780_CLK_EPLL] = {
> + "epll", CGU_CLK_PLL,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .pll = DEF_PLL(EPLL),
> + },
> +
> + [JZ4780_CLK_VPLL] = {
> + "vpll", CGU_CLK_PLL,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .pll = DEF_PLL(VPLL),
> + },
> +
> +#undef DEF_PLL
> +
> + /* Custom (SoC-specific) OTG PHY */
> +
> + [JZ4780_CLK_OTGPHY] = {
> + "otg_phy", CGU_CLK_CUSTOM,
> + .parents = { -1, -1, JZ4780_CLK_EXCLK, -1 },
> + .custom = { &jz4780_otg_phy_ops },
> + },
> +
> + /* Muxes & dividers */
> +
> + [JZ4780_CLK_SCLKA] = {
> + "sclk_a", CGU_CLK_MUX,
> + .parents = { -1, JZ4780_CLK_APLL, JZ4780_CLK_EXCLK,
> + JZ4780_CLK_RTCLK },
> + .mux = { CGU_REG_CLOCKCONTROL, 30, 2 },
> + },
> +
> + [JZ4780_CLK_CPUMUX] = {
> + "cpumux", CGU_CLK_MUX,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL },
> + .mux = { CGU_REG_CLOCKCONTROL, 28, 2 },
> + },
> +
> + [JZ4780_CLK_CPU] = {
> + "cpu", CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 },
> + .div = { CGU_REG_CLOCKCONTROL, 0, 4, 22, -1, -1 },
> + },
> +
> + [JZ4780_CLK_L2CACHE] = {
> + "l2cache", CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 },
> + .div = { CGU_REG_CLOCKCONTROL, 4, 4, -1, -1, -1 },
> + },
> +
> + [JZ4780_CLK_AHB0] = {
> + "ahb0", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL },
> + .mux = { CGU_REG_CLOCKCONTROL, 26, 2 },
> + .div = { CGU_REG_CLOCKCONTROL, 8, 4, 21, -1, -1 },
> + },
> +
> + [JZ4780_CLK_AHB2PMUX] = {
> + "ahb2_apb_mux", CGU_CLK_MUX,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_RTCLK },
> + .mux = { CGU_REG_CLOCKCONTROL, 24, 2 },
> + },
> +
> + [JZ4780_CLK_AHB2] = {
> + "ahb2", CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 },
> + .div = { CGU_REG_CLOCKCONTROL, 12, 4, 20, -1, -1 },
> + },
> +
> + [JZ4780_CLK_PCLK] = {
> + "pclk", CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 },
> + .div = { CGU_REG_CLOCKCONTROL, 16, 4, 20, -1, -1 },
> + },
> +
> + [JZ4780_CLK_DDR] = {
> + "ddr", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 },
> + .mux = { CGU_REG_DDRCDR, 30, 2 },
> + .div = { CGU_REG_DDRCDR, 0, 4, 29, 28, 27 },
> + },
> +
> + [JZ4780_CLK_VPU] = {
> + "vpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL, -1 },
> + .mux = { CGU_REG_VPUCDR, 30, 2 },
> + .div = { CGU_REG_VPUCDR, 0, 4, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR1, 2 },
> + },
> +
> + [JZ4780_CLK_I2SPLL] = {
> + "i2s_pll", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_EPLL, -1, -1 },
> + .mux = { CGU_REG_I2SCDR, 30, 1 },
> + .div = { CGU_REG_I2SCDR, 0, 8, 29, 28, 27 },
> + },
> +
> + [JZ4780_CLK_I2S] = {
> + "i2s", CGU_CLK_MUX,
> + .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_I2SPLL, -1, -1 },
> + .mux = { CGU_REG_I2SCDR, 31, 1 },
> + },
> +
> + [JZ4780_CLK_LCD0PIXCLK] = {
> + "lcd0pixclk", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_VPLL, -1 },
> + .mux = { CGU_REG_LP0CDR, 30, 2 },
> + .div = { CGU_REG_LP0CDR, 0, 8, 28, 27, 26 },
> + },
> +
> + [JZ4780_CLK_LCD1PIXCLK] = {
> + "lcd1pixclk", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_VPLL, -1 },
> + .mux = { CGU_REG_LP1CDR, 30, 2 },
> + .div = { CGU_REG_LP1CDR, 0, 8, 28, 27, 26 },
> + },
> +
> + [JZ4780_CLK_MSCMUX] = {
> + "msc_mux", CGU_CLK_MUX,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 },
> + .mux = { CGU_REG_MSC0CDR, 30, 2 },
> + },
> +
> + [JZ4780_CLK_MSC0] = {
> + "msc0", CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
> + .div = { CGU_REG_MSC0CDR, 0, 8, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR0, 3 },
> + },
> +
> + [JZ4780_CLK_MSC1] = {
> + "msc1", CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
> + .div = { CGU_REG_MSC1CDR, 0, 8, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR0, 11 },
> + },
> +
> + [JZ4780_CLK_MSC2] = {
> + "msc2", CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
> + .div = { CGU_REG_MSC2CDR, 0, 8, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR0, 12 },
> + },
> +
> + [JZ4780_CLK_UHC] = {
> + "uhc", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL, JZ4780_CLK_OTGPHY },
> + .mux = { CGU_REG_UHCCDR, 30, 2 },
> + .div = { CGU_REG_UHCCDR, 0, 8, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR0, 24 },
> + },
> +
> + [JZ4780_CLK_SSIPLL] = {
> + "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 },
> + .mux = { CGU_REG_SSICDR, 30, 1 },
> + .div = { CGU_REG_SSICDR, 0, 8, 29, 28, 27 },
> + },
> +
> + [JZ4780_CLK_SSI] = {
> + "ssi", CGU_CLK_MUX,
> + .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_SSIPLL, -1, -1 },
> + .mux = { CGU_REG_SSICDR, 31, 1 },
> + },
> +
> + [JZ4780_CLK_CIMMCLK] = {
> + "cim_mclk", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 },
> + .mux = { CGU_REG_CIMCDR, 31, 1 },
> + .div = { CGU_REG_CIMCDR, 0, 8, 30, 29, 28 },
> + },
> +
> + [JZ4780_CLK_PCMPLL] = {
> + "pcm_pll", CGU_CLK_MUX | CGU_CLK_DIV,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL, JZ4780_CLK_VPLL },
> + .mux = { CGU_REG_PCMCDR, 29, 2 },
> + .div = { CGU_REG_PCMCDR, 0, 8, 28, 27, 26 },
> + },
> +
> + [JZ4780_CLK_PCM] = {
> + "pcm", CGU_CLK_MUX | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_PCMPLL, -1, -1 },
> + .mux = { CGU_REG_PCMCDR, 31, 1 },
> + .gate = { CGU_REG_CLKGR1, 3 },
> + },
> +
> + [JZ4780_CLK_GPU] = {
> + "gpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL },
> + .mux = { CGU_REG_GPUCDR, 30, 2 },
> + .div = { CGU_REG_GPUCDR, 0, 4, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR1, 4 },
> + },
> +
> + [JZ4780_CLK_HDMI] = {
> + "hdmi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_VPLL, -1 },
> + .mux = { CGU_REG_HDMICDR, 30, 2 },
> + .div = { CGU_REG_HDMICDR, 0, 8, 29, 28, 26 },
> + .gate = { CGU_REG_CLKGR1, 9 },
> + },
> +
> + [JZ4780_CLK_BCH] = {
> + "bch", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
> + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
> + JZ4780_CLK_EPLL },
> + .mux = { CGU_REG_BCHCDR, 30, 2 },
> + .div = { CGU_REG_BCHCDR, 0, 4, 29, 28, 27 },
> + .gate = { CGU_REG_CLKGR0, 1 },
> + },
> +
> + /* Gate-only clocks */
> +
> + [JZ4780_CLK_NEMC] = {
> + "nemc", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_AHB2, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 0 },
> + },
> +
> + [JZ4780_CLK_OTG0] = {
> + "otg0", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 2 },
> + },
> +
> + [JZ4780_CLK_SSI0] = {
> + "ssi0", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 4 },
> + },
> +
> + [JZ4780_CLK_SMB0] = {
> + "smb0", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 5 },
> + },
> +
> + [JZ4780_CLK_SMB1] = {
> + "smb1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 6 },
> + },
> +
> + [JZ4780_CLK_SCC] = {
> + "scc", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 7 },
> + },
> +
> + [JZ4780_CLK_AIC] = {
> + "aic", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 8 },
> + },
> +
> + [JZ4780_CLK_TSSI0] = {
> + "tssi0", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 9 },
> + },
> +
> + [JZ4780_CLK_OWI] = {
> + "owi", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 10 },
> + },
> +
> + [JZ4780_CLK_KBC] = {
> + "kbc", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 13 },
> + },
> +
> + [JZ4780_CLK_SADC] = {
> + "sadc", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 14 },
> + },
> +
> + [JZ4780_CLK_UART0] = {
> + "uart0", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 15 },
> + },
> +
> + [JZ4780_CLK_UART1] = {
> + "uart1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 16 },
> + },
> +
> + [JZ4780_CLK_UART2] = {
> + "uart2", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 17 },
> + },
> +
> + [JZ4780_CLK_UART3] = {
> + "uart3", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 18 },
> + },
> +
> + [JZ4780_CLK_SSI1] = {
> + "ssi1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 19 },
> + },
> +
> + [JZ4780_CLK_SSI2] = {
> + "ssi2", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 20 },
> + },
> +
> + [JZ4780_CLK_PDMA] = {
> + "pdma", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 21 },
> + },
> +
> + [JZ4780_CLK_GPS] = {
> + "gps", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 22 },
> + },
> +
> + [JZ4780_CLK_MAC] = {
> + "mac", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 23 },
> + },
> +
> + [JZ4780_CLK_SMB2] = {
> + "smb2", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 24 },
> + },
> +
> + [JZ4780_CLK_CIM] = {
> + "cim", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 26 },
> + },
> +
> + [JZ4780_CLK_LCD] = {
> + "lcd", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 28 },
> + },
> +
> + [JZ4780_CLK_TVE] = {
> + "tve", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_LCD, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 27 },
> + },
> +
> + [JZ4780_CLK_IPU] = {
> + "ipu", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 29 },
> + },
> +
> + [JZ4780_CLK_DDR0] = {
> + "ddr0", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_DDR, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 30 },
> + },
> +
> + [JZ4780_CLK_DDR1] = {
> + "ddr1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_DDR, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR0, 31 },
> + },
> +
> + [JZ4780_CLK_SMB3] = {
> + "smb3", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 0 },
> + },
> +
> + [JZ4780_CLK_TSSI1] = {
> + "tssi1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 1 },
> + },
> +
> + [JZ4780_CLK_COMPRESS] = {
> + "compress", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 5 },
> + },
> +
> + [JZ4780_CLK_AIC1] = {
> + "aic1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 6 },
> + },
> +
> + [JZ4780_CLK_GPVLC] = {
> + "gpvlc", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 7 },
> + },
> +
> + [JZ4780_CLK_OTG1] = {
> + "otg1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 8 },
> + },
> +
> + [JZ4780_CLK_UART4] = {
> + "uart4", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 10 },
> + },
> +
> + [JZ4780_CLK_AHBMON] = {
> + "ahb_mon", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 11 },
> + },
> +
> + [JZ4780_CLK_SMB4] = {
> + "smb4", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 12 },
> + },
> +
> + [JZ4780_CLK_DES] = {
> + "des", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 13 },
> + },
> +
> + [JZ4780_CLK_X2D] = {
> + "x2d", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 14 },
> + },
> +
> + [JZ4780_CLK_CORE1] = {
> + "core1", CGU_CLK_GATE,
> + .parents = { JZ4780_CLK_CPU, -1, -1, -1 },
> + .gate = { CGU_REG_CLKGR1, 15 },
> + },
> +
> +};
> +
> +static void __init jz4780_cgu_init(struct device_node *np)
> +{
> + int retval;
> +
> + cgu = ingenic_cgu_new(jz4780_cgu_clocks,
> + ARRAY_SIZE(jz4780_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;
> + }
> +}
> +CLK_OF_DECLARE(jz4780_cgu, "ingenic,jz4780-cgu", jz4780_cgu_init);
> --
> 2.4.1
>
--
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