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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2017 NXP
*
* Peng Fan <peng.fan at nxp.com>
*/
#include <linux/bitops.h>
#ifdef CONFIG_IMX8MQ
#include <asm/arch/clock_imx8mq.h>
#elif defined(CONFIG_IMX8MM) || defined(CONFIG_IMX8MN)
#include <asm/arch/clock_imx8mm.h>
#else
#error "Error no clock.h"
#endif
#define MHZ(X) ((X) * 1000000UL)
/* Mainly for compatible to imx common code. */
enum mxc_clock {
MXC_ARM_CLK = 0,
MXC_IPG_CLK,
MXC_CSPI_CLK,
MXC_ESDHC_CLK,
MXC_ESDHC2_CLK,
MXC_ESDHC3_CLK,
MXC_I2C_CLK,
MXC_UART_CLK,
MXC_QSPI_CLK,
};
enum clk_slice_type {
CORE_CLOCK_SLICE,
BUS_CLOCK_SLICE,
IP_CLOCK_SLICE,
AHB_CLOCK_SLICE,
IPG_CLOCK_SLICE,
CORE_SEL_CLOCK_SLICE,
DRAM_SEL_CLOCK_SLICE,
};
enum root_pre_div {
CLK_ROOT_PRE_DIV1 = 0,
CLK_ROOT_PRE_DIV2,
CLK_ROOT_PRE_DIV3,
CLK_ROOT_PRE_DIV4,
CLK_ROOT_PRE_DIV5,
CLK_ROOT_PRE_DIV6,
CLK_ROOT_PRE_DIV7,
CLK_ROOT_PRE_DIV8,
};
enum root_post_div {
CLK_ROOT_POST_DIV1 = 0,
CLK_ROOT_POST_DIV2,
CLK_ROOT_POST_DIV3,
CLK_ROOT_POST_DIV4,
CLK_ROOT_POST_DIV5,
CLK_ROOT_POST_DIV6,
CLK_ROOT_POST_DIV7,
CLK_ROOT_POST_DIV8,
CLK_ROOT_POST_DIV9,
CLK_ROOT_POST_DIV10,
CLK_ROOT_POST_DIV11,
CLK_ROOT_POST_DIV12,
CLK_ROOT_POST_DIV13,
CLK_ROOT_POST_DIV14,
CLK_ROOT_POST_DIV15,
CLK_ROOT_POST_DIV16,
CLK_ROOT_POST_DIV17,
CLK_ROOT_POST_DIV18,
CLK_ROOT_POST_DIV19,
CLK_ROOT_POST_DIV20,
CLK_ROOT_POST_DIV21,
CLK_ROOT_POST_DIV22,
CLK_ROOT_POST_DIV23,
CLK_ROOT_POST_DIV24,
CLK_ROOT_POST_DIV25,
CLK_ROOT_POST_DIV26,
CLK_ROOT_POST_DIV27,
CLK_ROOT_POST_DIV28,
CLK_ROOT_POST_DIV29,
CLK_ROOT_POST_DIV30,
CLK_ROOT_POST_DIV31,
CLK_ROOT_POST_DIV32,
CLK_ROOT_POST_DIV33,
CLK_ROOT_POST_DIV34,
CLK_ROOT_POST_DIV35,
CLK_ROOT_POST_DIV36,
CLK_ROOT_POST_DIV37,
CLK_ROOT_POST_DIV38,
CLK_ROOT_POST_DIV39,
CLK_ROOT_POST_DIV40,
CLK_ROOT_POST_DIV41,
CLK_ROOT_POST_DIV42,
CLK_ROOT_POST_DIV43,
CLK_ROOT_POST_DIV44,
CLK_ROOT_POST_DIV45,
CLK_ROOT_POST_DIV46,
CLK_ROOT_POST_DIV47,
CLK_ROOT_POST_DIV48,
CLK_ROOT_POST_DIV49,
CLK_ROOT_POST_DIV50,
CLK_ROOT_POST_DIV51,
CLK_ROOT_POST_DIV52,
CLK_ROOT_POST_DIV53,
CLK_ROOT_POST_DIV54,
CLK_ROOT_POST_DIV55,
CLK_ROOT_POST_DIV56,
CLK_ROOT_POST_DIV57,
CLK_ROOT_POST_DIV58,
CLK_ROOT_POST_DIV59,
CLK_ROOT_POST_DIV60,
CLK_ROOT_POST_DIV61,
CLK_ROOT_POST_DIV62,
CLK_ROOT_POST_DIV63,
CLK_ROOT_POST_DIV64,
};
struct clk_root_map {
enum clk_root_index entry;
enum clk_slice_type slice_type;
u32 slice_index;
u8 src_mux[8];
};
struct ccm_ccgr {
u32 ccgr;
u32 ccgr_set;
u32 ccgr_clr;
u32 ccgr_tog;
};
struct ccm_root {
u32 target_root;
u32 target_root_set;
u32 target_root_clr;
u32 target_root_tog;
u32 misc;
u32 misc_set;
u32 misc_clr;
u32 misc_tog;
u32 nm_post;
u32 nm_post_root_set;
u32 nm_post_root_clr;
u32 nm_post_root_tog;
u32 nm_pre;
u32 nm_pre_root_set;
u32 nm_pre_root_clr;
u32 nm_pre_root_tog;
u32 db_post;
u32 db_post_root_set;
u32 db_post_root_clr;
u32 db_post_root_tog;
u32 db_pre;
u32 db_pre_root_set;
u32 db_pre_root_clr;
u32 db_pre_root_tog;
u32 reserved[4];
u32 access_ctrl;
u32 access_ctrl_root_set;
u32 access_ctrl_root_clr;
u32 access_ctrl_root_tog;
};
struct ccm_reg {
u32 reserved_0[4096];
struct ccm_ccgr ccgr_array[192];
u32 reserved_1[3328];
struct ccm_root core_root[5];
u32 reserved_2[352];
struct ccm_root bus_root[12];
u32 reserved_3[128];
struct ccm_root ahb_ipg_root[4];
u32 reserved_4[384];
struct ccm_root dram_sel;
struct ccm_root core_sel;
u32 reserved_5[448];
struct ccm_root ip_root[78];
};
enum enet_freq {
ENET_25MHZ = 0,
ENET_50MHZ,
ENET_125MHZ,
};
#define DRAM_BYPASS_ROOT_CONFIG(_rate, _m, _p, _s, _k) \
{ \
.clk = (_rate), \
.alt_root_sel = (_m), \
.alt_pre_div = (_p), \
.apb_root_sel = (_s), \
.apb_pre_div = (_k), \
}
struct dram_bypass_clk_setting {
ulong clk;
int alt_root_sel;
enum root_pre_div alt_pre_div;
int apb_root_sel;
enum root_pre_div apb_pre_div;
};
#define CCGR_CLK_ON_MASK 0x03
#define CLK_SRC_ON_MASK 0x03
#define CLK_ROOT_ON BIT(28)
#define CLK_ROOT_OFF (0 << 28)
#define CLK_ROOT_ENABLE_MASK BIT(28)
#define CLK_ROOT_ENABLE_SHIFT 28
#define CLK_ROOT_SOURCE_SEL(n) (((n) & 0x7) << 24)
/* For SEL, only use 1 bit */
#define CLK_ROOT_SRC_MUX_MASK 0x07000000
#define CLK_ROOT_SRC_MUX_SHIFT 24
#define CLK_ROOT_SRC_0 0x00000000
#define CLK_ROOT_SRC_1 0x01000000
#define CLK_ROOT_SRC_2 0x02000000
#define CLK_ROOT_SRC_3 0x03000000
#define CLK_ROOT_SRC_4 0x04000000
#define CLK_ROOT_SRC_5 0x05000000
#define CLK_ROOT_SRC_6 0x06000000
#define CLK_ROOT_SRC_7 0x07000000
#define CLK_ROOT_PRE_DIV_MASK (0x00070000)
#define CLK_ROOT_PRE_DIV_SHIFT 16
#define CLK_ROOT_PRE_DIV(n) (((n) << 16) & 0x00070000)
#define CLK_ROOT_AUDO_SLOW_EN 0x1000
#define CLK_ROOT_AUDO_DIV_MASK 0x700
#define CLK_ROOT_AUDO_DIV_SHIFT 0x8
#define CLK_ROOT_AUDO_DIV(n) (((n) << 8) & 0x700)
/* For CORE: mask is 0x7; For IPG: mask is 0x3 */
#define CLK_ROOT_POST_DIV_MASK 0x3f
#define CLK_ROOT_CORE_POST_DIV_MASK 0x7
#define CLK_ROOT_IPG_POST_DIV_MASK 0x3
#define CLK_ROOT_POST_DIV_SHIFT 0
#define CLK_ROOT_POST_DIV(n) ((n) & 0x3f)
#define ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK 0x01000000
#define ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK 0x02000000
#define ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK 0x03000000
#define ENET_AXI_CLK_ROOT_FROM_PLL_SYS_PFD4_CLK 0x07000000
#define ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M 0x01000000
#define ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK 0x01000000
#define ENET_PHY_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK 0x01000000
void dram_pll_init(ulong pll_val);
void dram_enable_bypass(ulong clk_val);
void dram_disable_bypass(void);
u32 imx_get_fecclk(void);
u32 imx_get_uartclk(void);
int clock_init(void);
void init_clk_usdhc(u32 index);
void init_uart_clk(u32 index);
void init_wdog_clk(void);
unsigned int mxc_get_clock(enum mxc_clock clk);
int clock_enable(enum clk_ccgr_index index, bool enable);
int clock_root_enabled(enum clk_root_index clock_id);
int clock_root_cfg(enum clk_root_index clock_id, enum root_pre_div pre_div,
enum root_post_div post_div, enum clk_root_src clock_src);
int clock_set_target_val(enum clk_root_index clock_id, u32 val);
int clock_get_target_val(enum clk_root_index clock_id, u32 *val);
int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div);
int clock_get_postdiv(enum clk_root_index clock_id,
enum root_post_div *post_div);
int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src);
void mxs_set_lcdclk(u32 base_addr, u32 freq);
int set_clk_qspi(void);
void enable_ocotp_clk(unsigned char enable);
int enable_i2c_clk(unsigned char enable, unsigned int i2c_num);
int set_clk_enet(enum enet_freq type);
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