// SPDX-License-Identifier: GPL-2.0-only
/*
* Pistachio SoC clock controllers
*
* Copyright (C) 2014 Google, Inc.
*/
#include <linux/clk-provider.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <dt-bindings/clock/pistachio-clk.h>
#include "clk.h"
static struct pistachio_gate pistachio_gates[] __initdata = {
GATE(CLK_MIPS, "mips" , "mips_div" , 0x104, 0),
GATE(CLK_AUDIO_IN, "audio_in" , "audio_clk_in_gate" , 0x104, 1),
GATE(CLK_AUDIO, "audio" , "audio_div" , 0x104, 2),
GATE(CLK_I2S, "i2s" , "i2s_div" , 0x104, 3),
GATE(CLK_SPDIF, "spdif" , "spdif_div" , 0x104, 4),
GATE(CLK_AUDIO_DAC, "audio_dac" , "audio_dac_div" , 0x104, 5),
GATE(CLK_RPU_V, "rpu_v" , "rpu_v_div" , 0x104, 6),
GATE(CLK_RPU_L, "rpu_l" , "rpu_l_div" , 0x104, 7),
GATE(CLK_RPU_SLEEP, "rpu_sleep" , "rpu_sleep_div" , 0x104, 8),
GATE(CLK_WIFI_PLL_GATE, "wifi_pll_gate" , "wifi_pll_mux" , 0x104, 9),
GATE(CLK_RPU_CORE, "rpu_core" , "rpu_core_div" , 0x104, 10),
GATE(CLK_WIFI_ADC, "wifi_adc" , "wifi_div8_mux" , 0x104, 11),
GATE(CLK_WIFI_DAC, "wifi_dac" , "wifi_div4_mux" , 0x104, 12),
GATE(CLK_USB_PHY, "usb_phy" , "usb_phy_div" , 0x104, 13),
GATE(CLK_ENET_IN, "enet_in" , "enet_clk_in_gate" , 0x104, 14),
GATE(CLK_ENET, "enet" , "enet_div" , 0x104, 15),
GATE(CLK_UART0, "uart0" , "uart0_div" , 0x104, 16),
GATE(CLK_UART1, "uart1" , "uart1_div" , 0x104, 17),
GATE(CLK_PERIPH_SYS, "periph_sys" , "sys_internal_div" , 0x104, 18),
GATE(CLK_SPI0, "spi0" , "spi0_div" , 0x104, 19),
GATE(CLK_SPI1, "spi1" , "spi1_div" , 0x104, 20),
GATE(CLK_EVENT_TIMER, "event_timer" , "event_timer_div" , 0x104, 21),
GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal" , "sys_internal_div" ,
0x104, 22),
GATE(CLK_AUX_ADC, "aux_adc" , "aux_adc_div" , 0x104, 23),
GATE(CLK_SD_HOST, "sd_host" , "sd_host_div" , 0x104, 24),
GATE(CLK_BT, "bt" , "bt_div" , 0x104, 25),
GATE(CLK_BT_DIV4, "bt_div4" , "bt_div4_div" , 0x104, 26),
GATE(CLK_BT_DIV8, "bt_div8" , "bt_div8_div" , 0x104, 27),
GATE(CLK_BT_1MHZ, "bt_1mhz" , "bt_1mhz_div" , 0x104, 28),
};
static struct pistachio_fixed_factor pistachio_ffs[] __initdata = {
FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4" , "wifi_pll" , 4),
FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8" , "wifi_pll" , 8),
};
static struct pistachio_div pistachio_divs[] __initdata = {
DIV(CLK_MIPS_INTERNAL_DIV, "mips_internal_div" , "mips_pll_mux" ,
0x204, 2),
DIV(CLK_MIPS_DIV, "mips_div" , "mips_internal_div" , 0x208, 8),
DIV_F(CLK_AUDIO_DIV, "audio_div" , "audio_mux" ,
0x20c, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_I2S_DIV, "i2s_div" , "audio_pll_mux" ,
0x210, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_SPDIF_DIV, "spdif_div" , "audio_pll_mux" ,
0x214, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_AUDIO_DAC_DIV, "audio_dac_div" , "audio_pll_mux" ,
0x218, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV(CLK_RPU_V_DIV, "rpu_v_div" , "rpu_v_pll_mux" , 0x21c, 2),
DIV(CLK_RPU_L_DIV, "rpu_l_div" , "rpu_l_mux" , 0x220, 2),
DIV(CLK_RPU_SLEEP_DIV, "rpu_sleep_div" , "xtal" , 0x224, 10),
DIV(CLK_RPU_CORE_DIV, "rpu_core_div" , "rpu_core_mux" , 0x228, 3),
DIV(CLK_USB_PHY_DIV, "usb_phy_div" , "sys_internal_div" , 0x22c, 6),
DIV(CLK_ENET_DIV, "enet_div" , "enet_mux" , 0x230, 6),
DIV_F(CLK_UART0_INTERNAL_DIV, "uart0_internal_div" , "sys_pll_mux" ,
0x234, 3, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_UART0_DIV, "uart0_div" , "uart0_internal_div" , 0x238, 10,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_UART1_INTERNAL_DIV, "uart1_internal_div" , "sys_pll_mux" ,
0x23c, 3, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_UART1_DIV, "uart1_div" , "uart1_internal_div" , 0x240, 10,
CLK_DIVIDER_ROUND_CLOSEST),
DIV(CLK_SYS_INTERNAL_DIV, "sys_internal_div" , "sys_pll_mux" , 0x244, 3),
DIV(CLK_SPI0_INTERNAL_DIV, "spi0_internal_div" , "sys_pll_mux" ,
0x248, 3),
DIV(CLK_SPI0_DIV, "spi0_div" , "spi0_internal_div" , 0x24c, 7),
DIV(CLK_SPI1_INTERNAL_DIV, "spi1_internal_div" , "sys_pll_mux" ,
0x250, 3),
DIV(CLK_SPI1_DIV, "spi1_div" , "spi1_internal_div" , 0x254, 7),
DIV(CLK_EVENT_TIMER_INTERNAL_DIV, "event_timer_internal_div" ,
"event_timer_mux" , 0x258, 3),
DIV(CLK_EVENT_TIMER_DIV, "event_timer_div" , "event_timer_internal_div" ,
0x25c, 12),
DIV(CLK_AUX_ADC_INTERNAL_DIV, "aux_adc_internal_div" ,
"aux_adc_internal" , 0x260, 3),
DIV(CLK_AUX_ADC_DIV, "aux_adc_div" , "aux_adc_internal_div" , 0x264, 10),
DIV(CLK_SD_HOST_DIV, "sd_host_div" , "sd_host_mux" , 0x268, 6),
DIV(CLK_BT_DIV, "bt_div" , "bt_pll_mux" , 0x26c, 6),
DIV(CLK_BT_DIV4_DIV, "bt_div4_div" , "bt_pll_mux" , 0x270, 6),
DIV(CLK_BT_DIV8_DIV, "bt_div8_div" , "bt_pll_mux" , 0x274, 6),
DIV(CLK_BT_1MHZ_INTERNAL_DIV, "bt_1mhz_internal_div" , "bt_pll_mux" ,
0x278, 3),
DIV(CLK_BT_1MHZ_DIV, "bt_1mhz_div" , "bt_1mhz_internal_div" , 0x27c, 10),
};
PNAME(mux_xtal_audio_refclk) = { "xtal" , "audio_clk_in_gate" };
PNAME(mux_xtal_mips) = { "xtal" , "mips_pll" };
PNAME(mux_xtal_audio) = { "xtal" , "audio_pll" , "audio_in" };
PNAME(mux_audio_debug) = { "audio_pll_mux" , "debug_mux" };
PNAME(mux_xtal_rpu_v) = { "xtal" , "rpu_v_pll" };
PNAME(mux_xtal_rpu_l) = { "xtal" , "rpu_l_pll" };
PNAME(mux_rpu_l_mips) = { "rpu_l_pll_mux" , "mips_pll_mux" };
PNAME(mux_xtal_wifi) = { "xtal" , "wifi_pll" };
PNAME(mux_xtal_wifi_div4) = { "xtal" , "wifi_div4" };
PNAME(mux_xtal_wifi_div8) = { "xtal" , "wifi_div8" };
PNAME(mux_wifi_div4_rpu_l) = { "wifi_pll_gate" , "wifi_div4_mux" ,
"rpu_l_pll_mux" };
PNAME(mux_xtal_sys) = { "xtal" , "sys_pll" };
PNAME(mux_sys_enet) = { "sys_internal_div" , "enet_in" };
PNAME(mux_audio_sys) = { "audio_pll_mux" , "sys_internal_div" };
PNAME(mux_sys_bt) = { "sys_internal_div" , "bt_pll_mux" };
PNAME(mux_xtal_bt) = { "xtal" , "bt_pll" };
static struct pistachio_mux pistachio_muxes[] __initdata = {
MUX(CLK_AUDIO_REF_MUX, "audio_refclk_mux" , mux_xtal_audio_refclk,
0x200, 0),
MUX(CLK_MIPS_PLL_MUX, "mips_pll_mux" , mux_xtal_mips, 0x200, 1),
MUX(CLK_AUDIO_PLL_MUX, "audio_pll_mux" , mux_xtal_audio, 0x200, 2),
MUX(CLK_AUDIO_MUX, "audio_mux" , mux_audio_debug, 0x200, 4),
MUX(CLK_RPU_V_PLL_MUX, "rpu_v_pll_mux" , mux_xtal_rpu_v, 0x200, 5),
MUX(CLK_RPU_L_PLL_MUX, "rpu_l_pll_mux" , mux_xtal_rpu_l, 0x200, 6),
MUX(CLK_RPU_L_MUX, "rpu_l_mux" , mux_rpu_l_mips, 0x200, 7),
MUX(CLK_WIFI_PLL_MUX, "wifi_pll_mux" , mux_xtal_wifi, 0x200, 8),
MUX(CLK_WIFI_DIV4_MUX, "wifi_div4_mux" , mux_xtal_wifi_div4, 0x200, 9),
MUX(CLK_WIFI_DIV8_MUX, "wifi_div8_mux" , mux_xtal_wifi_div8, 0x200, 10),
MUX(CLK_RPU_CORE_MUX, "rpu_core_mux" , mux_wifi_div4_rpu_l, 0x200, 11),
MUX(CLK_SYS_PLL_MUX, "sys_pll_mux" , mux_xtal_sys, 0x200, 13),
MUX(CLK_ENET_MUX, "enet_mux" , mux_sys_enet, 0x200, 14),
MUX(CLK_EVENT_TIMER_MUX, "event_timer_mux" , mux_audio_sys, 0x200, 15),
MUX(CLK_SD_HOST_MUX, "sd_host_mux" , mux_sys_bt, 0x200, 16),
MUX(CLK_BT_PLL_MUX, "bt_pll_mux" , mux_xtal_bt, 0x200, 17),
};
static struct pistachio_pll pistachio_plls[] __initdata = {
PLL_FIXED(CLK_MIPS_PLL, "mips_pll" , "xtal" , PLL_GF40LP_LAINT, 0x0),
PLL_FIXED(CLK_AUDIO_PLL, "audio_pll" , "audio_refclk_mux" ,
PLL_GF40LP_FRAC, 0xc),
PLL_FIXED(CLK_RPU_V_PLL, "rpu_v_pll" , "xtal" , PLL_GF40LP_LAINT, 0x20),
PLL_FIXED(CLK_RPU_L_PLL, "rpu_l_pll" , "xtal" , PLL_GF40LP_LAINT, 0x2c),
PLL_FIXED(CLK_SYS_PLL, "sys_pll" , "xtal" , PLL_GF40LP_FRAC, 0x38),
PLL_FIXED(CLK_WIFI_PLL, "wifi_pll" , "xtal" , PLL_GF40LP_FRAC, 0x4c),
PLL_FIXED(CLK_BT_PLL, "bt_pll" , "xtal" , PLL_GF40LP_LAINT, 0x60),
};
PNAME(mux_debug) = { "mips_pll_mux" , "rpu_v_pll_mux" ,
"rpu_l_pll_mux" , "sys_pll_mux" ,
"wifi_pll_mux" , "bt_pll_mux" };
static const u32 mux_debug_idx[] = { 0x0, 0x1, 0x2, 0x4, 0x8, 0x10 };
static unsigned int pistachio_critical_clks_core[] __initdata = {
CLK_MIPS
};
static unsigned int pistachio_critical_clks_sys[] __initdata = {
PERIPH_CLK_SYS,
PERIPH_CLK_SYS_BUS,
PERIPH_CLK_DDR,
PERIPH_CLK_ROM,
};
static void __init pistachio_clk_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
struct clk *debug_clk;
p = pistachio_clk_alloc_provider(np, CLK_NR_CLKS);
if (!p)
return ;
pistachio_clk_register_pll(p, pistachio_plls,
ARRAY_SIZE(pistachio_plls));
pistachio_clk_register_mux(p, pistachio_muxes,
ARRAY_SIZE(pistachio_muxes));
pistachio_clk_register_div(p, pistachio_divs,
ARRAY_SIZE(pistachio_divs));
pistachio_clk_register_fixed_factor(p, pistachio_ffs,
ARRAY_SIZE(pistachio_ffs));
pistachio_clk_register_gate(p, pistachio_gates,
ARRAY_SIZE(pistachio_gates));
debug_clk = clk_register_mux_table(NULL, "debug_mux" , mux_debug,
ARRAY_SIZE(mux_debug),
CLK_SET_RATE_NO_REPARENT,
p->base + 0x200, 18, 0x1f, 0,
mux_debug_idx, NULL);
p->clk_data.clks[CLK_DEBUG_MUX] = debug_clk;
pistachio_clk_register_provider(p);
pistachio_clk_force_enable(p, pistachio_critical_clks_core,
ARRAY_SIZE(pistachio_critical_clks_core));
}
CLK_OF_DECLARE(pistachio_clk, "img,pistachio-clk" , pistachio_clk_init);
static struct pistachio_gate pistachio_periph_gates[] __initdata = {
GATE(PERIPH_CLK_SYS, "sys" , "periph_sys" , 0x100, 0),
GATE(PERIPH_CLK_SYS_BUS, "bus_sys" , "periph_sys" , 0x100, 1),
GATE(PERIPH_CLK_DDR, "ddr" , "periph_sys" , 0x100, 2),
GATE(PERIPH_CLK_ROM, "rom" , "rom_div" , 0x100, 3),
GATE(PERIPH_CLK_COUNTER_FAST, "counter_fast" , "counter_fast_div" ,
0x100, 4),
GATE(PERIPH_CLK_COUNTER_SLOW, "counter_slow" , "counter_slow_div" ,
0x100, 5),
GATE(PERIPH_CLK_IR, "ir" , "ir_div" , 0x100, 6),
GATE(PERIPH_CLK_WD, "wd" , "wd_div" , 0x100, 7),
GATE(PERIPH_CLK_PDM, "pdm" , "pdm_div" , 0x100, 8),
GATE(PERIPH_CLK_PWM, "pwm" , "pwm_div" , 0x100, 9),
GATE(PERIPH_CLK_I2C0, "i2c0" , "i2c0_div" , 0x100, 10),
GATE(PERIPH_CLK_I2C1, "i2c1" , "i2c1_div" , 0x100, 11),
GATE(PERIPH_CLK_I2C2, "i2c2" , "i2c2_div" , 0x100, 12),
GATE(PERIPH_CLK_I2C3, "i2c3" , "i2c3_div" , 0x100, 13),
};
static struct pistachio_div pistachio_periph_divs[] __initdata = {
DIV(PERIPH_CLK_ROM_DIV, "rom_div" , "periph_sys" , 0x10c, 7),
DIV(PERIPH_CLK_COUNTER_FAST_DIV, "counter_fast_div" , "periph_sys" ,
0x110, 7),
DIV(PERIPH_CLK_COUNTER_SLOW_PRE_DIV, "counter_slow_pre_div" ,
"periph_sys" , 0x114, 7),
DIV(PERIPH_CLK_COUNTER_SLOW_DIV, "counter_slow_div" ,
"counter_slow_pre_div" , 0x118, 7),
DIV_F(PERIPH_CLK_IR_PRE_DIV, "ir_pre_div" , "periph_sys" , 0x11c, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(PERIPH_CLK_IR_DIV, "ir_div" , "ir_pre_div" , 0x120, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(PERIPH_CLK_WD_PRE_DIV, "wd_pre_div" , "periph_sys" , 0x124, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(PERIPH_CLK_WD_DIV, "wd_div" , "wd_pre_div" , 0x128, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV(PERIPH_CLK_PDM_PRE_DIV, "pdm_pre_div" , "periph_sys" , 0x12c, 7),
DIV(PERIPH_CLK_PDM_DIV, "pdm_div" , "pdm_pre_div" , 0x130, 7),
DIV(PERIPH_CLK_PWM_PRE_DIV, "pwm_pre_div" , "periph_sys" , 0x134, 7),
DIV(PERIPH_CLK_PWM_DIV, "pwm_div" , "pwm_pre_div" , 0x138, 7),
DIV(PERIPH_CLK_I2C0_PRE_DIV, "i2c0_pre_div" , "periph_sys" , 0x13c, 7),
DIV(PERIPH_CLK_I2C0_DIV, "i2c0_div" , "i2c0_pre_div" , 0x140, 7),
DIV(PERIPH_CLK_I2C1_PRE_DIV, "i2c1_pre_div" , "periph_sys" , 0x144, 7),
DIV(PERIPH_CLK_I2C1_DIV, "i2c1_div" , "i2c1_pre_div" , 0x148, 7),
DIV(PERIPH_CLK_I2C2_PRE_DIV, "i2c2_pre_div" , "periph_sys" , 0x14c, 7),
DIV(PERIPH_CLK_I2C2_DIV, "i2c2_div" , "i2c2_pre_div" , 0x150, 7),
DIV(PERIPH_CLK_I2C3_PRE_DIV, "i2c3_pre_div" , "periph_sys" , 0x154, 7),
DIV(PERIPH_CLK_I2C3_DIV, "i2c3_div" , "i2c3_pre_div" , 0x158, 7),
};
static void __init pistachio_clk_periph_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
p = pistachio_clk_alloc_provider(np, PERIPH_CLK_NR_CLKS);
if (!p)
return ;
pistachio_clk_register_div(p, pistachio_periph_divs,
ARRAY_SIZE(pistachio_periph_divs));
pistachio_clk_register_gate(p, pistachio_periph_gates,
ARRAY_SIZE(pistachio_periph_gates));
pistachio_clk_register_provider(p);
pistachio_clk_force_enable(p, pistachio_critical_clks_sys,
ARRAY_SIZE(pistachio_critical_clks_sys));
}
CLK_OF_DECLARE(pistachio_clk_periph, "img,pistachio-clk-periph" ,
pistachio_clk_periph_init);
static struct pistachio_gate pistachio_sys_gates[] __initdata = {
GATE(SYS_CLK_I2C0, "i2c0_sys" , "sys" , 0x8, 0),
GATE(SYS_CLK_I2C1, "i2c1_sys" , "sys" , 0x8, 1),
GATE(SYS_CLK_I2C2, "i2c2_sys" , "sys" , 0x8, 2),
GATE(SYS_CLK_I2C3, "i2c3_sys" , "sys" , 0x8, 3),
GATE(SYS_CLK_I2S_IN, "i2s_in_sys" , "sys" , 0x8, 4),
GATE(SYS_CLK_PAUD_OUT, "paud_out_sys" , "sys" , 0x8, 5),
GATE(SYS_CLK_SPDIF_OUT, "spdif_out_sys" , "sys" , 0x8, 6),
GATE(SYS_CLK_SPI0_MASTER, "spi0_master_sys" , "sys" , 0x8, 7),
GATE(SYS_CLK_SPI0_SLAVE, "spi0_slave_sys" , "sys" , 0x8, 8),
GATE(SYS_CLK_PWM, "pwm_sys" , "sys" , 0x8, 9),
GATE(SYS_CLK_UART0, "uart0_sys" , "sys" , 0x8, 10),
GATE(SYS_CLK_UART1, "uart1_sys" , "sys" , 0x8, 11),
GATE(SYS_CLK_SPI1, "spi1_sys" , "sys" , 0x8, 12),
GATE(SYS_CLK_MDC, "mdc_sys" , "sys" , 0x8, 13),
GATE(SYS_CLK_SD_HOST, "sd_host_sys" , "sys" , 0x8, 14),
GATE(SYS_CLK_ENET, "enet_sys" , "sys" , 0x8, 15),
GATE(SYS_CLK_IR, "ir_sys" , "sys" , 0x8, 16),
GATE(SYS_CLK_WD, "wd_sys" , "sys" , 0x8, 17),
GATE(SYS_CLK_TIMER, "timer_sys" , "sys" , 0x8, 18),
GATE(SYS_CLK_I2S_OUT, "i2s_out_sys" , "sys" , 0x8, 24),
GATE(SYS_CLK_SPDIF_IN, "spdif_in_sys" , "sys" , 0x8, 25),
GATE(SYS_CLK_EVENT_TIMER, "event_timer_sys" , "sys" , 0x8, 26),
GATE(SYS_CLK_HASH, "hash_sys" , "sys" , 0x8, 27),
};
static void __init pistachio_cr_periph_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
p = pistachio_clk_alloc_provider(np, SYS_CLK_NR_CLKS);
if (!p)
return ;
pistachio_clk_register_gate(p, pistachio_sys_gates,
ARRAY_SIZE(pistachio_sys_gates));
pistachio_clk_register_provider(p);
}
CLK_OF_DECLARE(pistachio_cr_periph, "img,pistachio-cr-periph" ,
pistachio_cr_periph_init);
static struct pistachio_gate pistachio_ext_gates[] __initdata = {
GATE(EXT_CLK_ENET_IN, "enet_clk_in_gate" , "enet_clk_in" , 0x58, 5),
GATE(EXT_CLK_AUDIO_IN, "audio_clk_in_gate" , "audio_clk_in" , 0x58, 8)
};
static void __init pistachio_cr_top_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
p = pistachio_clk_alloc_provider(np, EXT_CLK_NR_CLKS);
if (!p)
return ;
pistachio_clk_register_gate(p, pistachio_ext_gates,
ARRAY_SIZE(pistachio_ext_gates));
pistachio_clk_register_provider(p);
}
CLK_OF_DECLARE(pistachio_cr_top, "img,pistachio-cr-top" ,
pistachio_cr_top_init);
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