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linux-next/drivers/clk/ingenic/jz4780-cgu.c
Paul Burton 29136ad581 clk: ingenic: add JZ4780 CGU support 
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@imgtec.com>
Co-authored-by: Paul Cercueil <paul@crapouillou.net>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10157/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:20 +02:00

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/*
* Ingenic JZ4780 SoC CGU driver
*
* Copyright (c) 2013-2015 Imagination Technologies
* Author: Paul Burton <paul.burton@imgtec.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);
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