linux/drivers/clk/ti/clk-33xx-compat.c
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   1/*
   2 * AM33XX Clock init
   3 *
   4 * Copyright (C) 2013 Texas Instruments, Inc
   5 *     Tero Kristo (t-kristo@ti.com)
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License as
   9 * published by the Free Software Foundation version 2.
  10 *
  11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  12 * kind, whether express or implied; without even the implied warranty
  13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 * GNU General Public License for more details.
  15 */
  16
  17#include <linux/kernel.h>
  18#include <linux/list.h>
  19#include <linux/clk.h>
  20#include <linux/clk-provider.h>
  21#include <linux/clk/ti.h>
  22#include <dt-bindings/clock/am3.h>
  23
  24#include "clock.h"
  25
  26static const char * const am3_gpio1_dbclk_parents[] __initconst = {
  27        "l4_per_cm:clk:0138:0",
  28        NULL,
  29};
  30
  31static const struct omap_clkctrl_bit_data am3_gpio2_bit_data[] __initconst = {
  32        { 18, TI_CLK_GATE, am3_gpio1_dbclk_parents, NULL },
  33        { 0 },
  34};
  35
  36static const struct omap_clkctrl_bit_data am3_gpio3_bit_data[] __initconst = {
  37        { 18, TI_CLK_GATE, am3_gpio1_dbclk_parents, NULL },
  38        { 0 },
  39};
  40
  41static const struct omap_clkctrl_bit_data am3_gpio4_bit_data[] __initconst = {
  42        { 18, TI_CLK_GATE, am3_gpio1_dbclk_parents, NULL },
  43        { 0 },
  44};
  45
  46static const struct omap_clkctrl_reg_data am3_l4_per_clkctrl_regs[] __initconst = {
  47        { AM3_CPGMAC0_CLKCTRL, NULL, CLKF_SW_SUP, "cpsw_125mhz_gclk", "cpsw_125mhz_clkdm" },
  48        { AM3_LCDC_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_SET_RATE_PARENT, "lcd_gclk", "lcdc_clkdm" },
  49        { AM3_USB_OTG_HS_CLKCTRL, NULL, CLKF_SW_SUP, "usbotg_fck", "l3s_clkdm" },
  50        { AM3_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  51        { AM3_EMIF_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_ddr_m2_div2_ck", "l3_clkdm" },
  52        { AM3_OCMCRAM_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  53        { AM3_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "l3s_gclk", "l3s_clkdm" },
  54        { AM3_MCASP0_CLKCTRL, NULL, CLKF_SW_SUP, "mcasp0_fck", "l3s_clkdm" },
  55        { AM3_UART6_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  56        { AM3_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
  57        { AM3_ELM_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  58        { AM3_I2C3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  59        { AM3_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  60        { AM3_SPI0_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  61        { AM3_SPI1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  62        { AM3_L4_LS_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  63        { AM3_MCASP1_CLKCTRL, NULL, CLKF_SW_SUP, "mcasp1_fck", "l3s_clkdm" },
  64        { AM3_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  65        { AM3_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  66        { AM3_UART4_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  67        { AM3_UART5_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
  68        { AM3_TIMER7_CLKCTRL, NULL, CLKF_SW_SUP, "timer7_fck" },
  69        { AM3_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "timer2_fck" },
  70        { AM3_TIMER3_CLKCTRL, NULL, CLKF_SW_SUP, "timer3_fck" },
  71        { AM3_TIMER4_CLKCTRL, NULL, CLKF_SW_SUP, "timer4_fck" },
  72        { AM3_RNG_CLKCTRL, NULL, CLKF_SW_SUP, "rng_fck" },
  73        { AM3_AES_CLKCTRL, NULL, CLKF_SW_SUP, "aes0_fck", "l3_clkdm" },
  74        { AM3_SHAM_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  75        { AM3_GPIO2_CLKCTRL, am3_gpio2_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
  76        { AM3_GPIO3_CLKCTRL, am3_gpio3_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
  77        { AM3_GPIO4_CLKCTRL, am3_gpio4_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
  78        { AM3_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  79        { AM3_D_CAN0_CLKCTRL, NULL, CLKF_SW_SUP, "dcan0_fck" },
  80        { AM3_D_CAN1_CLKCTRL, NULL, CLKF_SW_SUP, "dcan1_fck" },
  81        { AM3_EPWMSS1_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  82        { AM3_EPWMSS0_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  83        { AM3_EPWMSS2_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  84        { AM3_L3_INSTR_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  85        { AM3_L3_MAIN_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  86        { AM3_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP, "pruss_ocp_gclk", "pruss_ocp_clkdm" },
  87        { AM3_TIMER5_CLKCTRL, NULL, CLKF_SW_SUP, "timer5_fck" },
  88        { AM3_TIMER6_CLKCTRL, NULL, CLKF_SW_SUP, "timer6_fck" },
  89        { AM3_MMC2_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
  90        { AM3_MMC3_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk", "l3s_clkdm" },
  91        { AM3_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  92        { AM3_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
  93        { AM3_SPINLOCK_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  94        { AM3_MAILBOX_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  95        { AM3_L4_HS_CLKCTRL, NULL, CLKF_SW_SUP, "l4hs_gclk", "l4hs_clkdm" },
  96        { AM3_OCPWP_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
  97        { AM3_CLKDIV32K_CLKCTRL, NULL, CLKF_SW_SUP, "clkdiv32k_ck", "clk_24mhz_clkdm" },
  98        { 0 },
  99};
 100
 101static const char * const am3_gpio0_dbclk_parents[] __initconst = {
 102        "gpio0_dbclk_mux_ck",
 103        NULL,
 104};
 105
 106static const struct omap_clkctrl_bit_data am3_gpio1_bit_data[] __initconst = {
 107        { 18, TI_CLK_GATE, am3_gpio0_dbclk_parents, NULL },
 108        { 0 },
 109};
 110
 111static const char * const am3_dbg_sysclk_ck_parents[] __initconst = {
 112        "sys_clkin_ck",
 113        NULL,
 114};
 115
 116static const char * const am3_trace_pmd_clk_mux_ck_parents[] __initconst = {
 117        "l4_wkup_cm:clk:0010:19",
 118        "l4_wkup_cm:clk:0010:30",
 119        NULL,
 120};
 121
 122static const char * const am3_trace_clk_div_ck_parents[] __initconst = {
 123        "l4_wkup_cm:clk:0010:20",
 124        NULL,
 125};
 126
 127static const struct omap_clkctrl_div_data am3_trace_clk_div_ck_data __initconst = {
 128        .max_div = 64,
 129        .flags = CLK_DIVIDER_POWER_OF_TWO,
 130};
 131
 132static const char * const am3_stm_clk_div_ck_parents[] __initconst = {
 133        "l4_wkup_cm:clk:0010:22",
 134        NULL,
 135};
 136
 137static const struct omap_clkctrl_div_data am3_stm_clk_div_ck_data __initconst = {
 138        .max_div = 64,
 139        .flags = CLK_DIVIDER_POWER_OF_TWO,
 140};
 141
 142static const char * const am3_dbg_clka_ck_parents[] __initconst = {
 143        "dpll_core_m4_ck",
 144        NULL,
 145};
 146
 147static const struct omap_clkctrl_bit_data am3_debugss_bit_data[] __initconst = {
 148        { 19, TI_CLK_GATE, am3_dbg_sysclk_ck_parents, NULL },
 149        { 20, TI_CLK_MUX, am3_trace_pmd_clk_mux_ck_parents, NULL },
 150        { 22, TI_CLK_MUX, am3_trace_pmd_clk_mux_ck_parents, NULL },
 151        { 24, TI_CLK_DIVIDER, am3_trace_clk_div_ck_parents, &am3_trace_clk_div_ck_data },
 152        { 27, TI_CLK_DIVIDER, am3_stm_clk_div_ck_parents, &am3_stm_clk_div_ck_data },
 153        { 30, TI_CLK_GATE, am3_dbg_clka_ck_parents, NULL },
 154        { 0 },
 155};
 156
 157static const struct omap_clkctrl_reg_data am3_l4_wkup_clkctrl_regs[] __initconst = {
 158        { AM3_CONTROL_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_core_m4_div2_ck" },
 159        { AM3_GPIO1_CLKCTRL, am3_gpio1_bit_data, CLKF_SW_SUP, "dpll_core_m4_div2_ck" },
 160        { AM3_L4_WKUP_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_core_m4_div2_ck" },
 161        { AM3_DEBUGSS_CLKCTRL, am3_debugss_bit_data, CLKF_SW_SUP, "l4_wkup_cm:clk:0010:24", "l3_aon_clkdm" },
 162        { AM3_WKUP_M3_CLKCTRL, NULL, CLKF_NO_IDLEST, "dpll_core_m4_div2_ck", "l4_wkup_aon_clkdm" },
 163        { AM3_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_wkupdm_ck" },
 164        { AM3_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_wkupdm_ck" },
 165        { AM3_ADC_TSC_CLKCTRL, NULL, CLKF_SW_SUP, "adc_tsc_fck" },
 166        { AM3_SMARTREFLEX0_CLKCTRL, NULL, CLKF_SW_SUP, "smartreflex0_fck" },
 167        { AM3_TIMER1_CLKCTRL, NULL, CLKF_SW_SUP, "timer1_fck" },
 168        { AM3_SMARTREFLEX1_CLKCTRL, NULL, CLKF_SW_SUP, "smartreflex1_fck" },
 169        { AM3_WD_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "wdt1_fck" },
 170        { 0 },
 171};
 172
 173static const struct omap_clkctrl_reg_data am3_mpu_clkctrl_regs[] __initconst = {
 174        { AM3_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_mpu_m2_ck" },
 175        { 0 },
 176};
 177
 178static const struct omap_clkctrl_reg_data am3_l4_rtc_clkctrl_regs[] __initconst = {
 179        { AM3_RTC_CLKCTRL, NULL, CLKF_SW_SUP, "clk_32768_ck" },
 180        { 0 },
 181};
 182
 183static const struct omap_clkctrl_reg_data am3_gfx_l3_clkctrl_regs[] __initconst = {
 184        { AM3_GFX_CLKCTRL, NULL, CLKF_SW_SUP, "gfx_fck_div_ck" },
 185        { 0 },
 186};
 187
 188static const struct omap_clkctrl_reg_data am3_l4_cefuse_clkctrl_regs[] __initconst = {
 189        { AM3_CEFUSE_CLKCTRL, NULL, CLKF_SW_SUP, "sys_clkin_ck" },
 190        { 0 },
 191};
 192
 193const struct omap_clkctrl_data am3_clkctrl_compat_data[] __initconst = {
 194        { 0x44e00014, am3_l4_per_clkctrl_regs },
 195        { 0x44e00404, am3_l4_wkup_clkctrl_regs },
 196        { 0x44e00604, am3_mpu_clkctrl_regs },
 197        { 0x44e00800, am3_l4_rtc_clkctrl_regs },
 198        { 0x44e00904, am3_gfx_l3_clkctrl_regs },
 199        { 0x44e00a20, am3_l4_cefuse_clkctrl_regs },
 200        { 0 },
 201};
 202
 203struct ti_dt_clk am33xx_compat_clks[] = {
 204        DT_CLK(NULL, "timer_32k_ck", "l4_per_cm:0138:0"),
 205        DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
 206        DT_CLK(NULL, "clkdiv32k_ick", "l4_per_cm:0138:0"),
 207        DT_CLK(NULL, "dbg_clka_ck", "l4_wkup_cm:0010:30"),
 208        DT_CLK(NULL, "dbg_sysclk_ck", "l4_wkup_cm:0010:19"),
 209        DT_CLK(NULL, "gpio0_dbclk", "l4_wkup_cm:0004:18"),
 210        DT_CLK(NULL, "gpio1_dbclk", "l4_per_cm:0098:18"),
 211        DT_CLK(NULL, "gpio2_dbclk", "l4_per_cm:009c:18"),
 212        DT_CLK(NULL, "gpio3_dbclk", "l4_per_cm:00a0:18"),
 213        DT_CLK(NULL, "stm_clk_div_ck", "l4_wkup_cm:0010:27"),
 214        DT_CLK(NULL, "stm_pmd_clock_mux_ck", "l4_wkup_cm:0010:22"),
 215        DT_CLK(NULL, "trace_clk_div_ck", "l4_wkup_cm:0010:24"),
 216        DT_CLK(NULL, "trace_pmd_clk_mux_ck", "l4_wkup_cm:0010:20"),
 217        { .node_name = NULL },
 218};
 219