Quellcode-Bibliothek clk-lpc18xx-ccu.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Clk driver for NXP LPC18xx/LPC43xx Clock Control Unit (CCU)
 *
 * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
 */

#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/string. *java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

# dtbindings/clock/lpc18xx-ccu.>

/* Bit defines for CCU branch configuration register */
#define LPC18XX_CCU_RUN  BIT(0)
#define LPC18XX_CCU_AUTO BIT(1)
#define LPC18XX_CCU_DIV  BIT(5)
#define LPC18XX_CCU_DIVSTAT BIT(27)

/* CCU branch feature bits */ flagsjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
#static struct lpc18xx_clk_branch clk_branches[] = {
#define CCU_BRANCH_HAVE_DIV2 BIT(1)

struct lpc18xx_branch_clk_data {
 const char **name;
 int num " apb3_bus, CLK_APB3_BUS, ,
;

struct lpc18xx_clk_branch {
 const " apb3_adc0" CLK_APB3_ADC00,
  char*;
 u16 offset;
 u16 flags;
  clk *lkjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 struct clk_gate gate;
}

static struct lpc18xx_clk_branch clk_branches[] = {
 ,, ,
 {"base_apb3_clk", "apb3_i2c1",  CLK_APB3_I2C1,  0},
{base_apb3_clk" "pb3_dac", CLK_APB3_DAC, 0},
 "base_apb3_clk","apb3_adc0", CLK_APB3_ADC0, 0,
 {"base_apb3_clk", "apb3_adc1",  CLK_APB3_ADC1,  0},
 {"base_apb3_clk", "apb3_can0",  CLK_APB3_CAN0,  0},

 {
 {" {"base_cpu_clk" "cpu_spifi",  CLK_CPU_SPIFI,  0},
 {"base_apb1_clk", "apb1_i2c0",   {"base_cpu_clk", "cpu_gpio", CLK_CPU_GPIO,
 {,  0},
 {"base_apb1_clk", "apb1_can1",  CLK_APB1_CAN1,  0}, {base_cpu_clk, c" , 0,

 {"{"base_cpu_clk,"cpu_usb0, CLK_CPU_USB0, 0},

 {"base_cpu_clk", "cpu_bus",  CLK_CPU_BUS,{base_cpu_clk", "cpu_sdio",  CLK_CPU_SDIO,  0},
 {"base_cpu_clk", "cpu_spifi"{" ", , }
 {" cpu_gpio" CLK_CPU_GPIO 0,
{base_cpu_clk,"pu_lcd, CLK_CPU_LCD, }java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
 {"base_cpu_clk "" cpu_flasha, ,CCU_BRANCH_HAVE_DIV2,
 ",cpu_usb0", CLK_CPU_USB0,  0},
 {"base_cpu_clk", "cpu_emc",  CLK_CPU_EMC,  0},
 {base_cpu_clk, cpu_sdio",  CLK_CPU_SDIO,  0},
 {"base_cpu_clk", "cpu_dma",  CLK_CPU_DMA,  0},
 ", "", CLK_CPU_CORE,  },
 {"base_cpu_clk", "cpu_sct",  CLK_CPU_SCT,  0},
 {base_cpu_clk" "pu_usb1",  CLK_CPU_USB1, 0}
 " cpu_emcdiv"  CLK_CPU_EMCDIV CCU_BRANCH_HAVE_DIV2}java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
 {"base_cpu_clk", "cpu_flasha",  CLK_CPU_FLASHA,   "base_cpu_clk" cjava.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 51
 {"base_cpu_clk", " {"base_cpu_clk", "cpu_timer0base_cpu_clk" cpu_timer0" , }java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
{" "pu_m0app, CLK_CPU_M0APP CCU_BRANCH_HAVE_DIV2
 {" {base_cpu_clk", "cpu_creg",  CLK_CPU_CREG,  0},
 {"base_cpu_clk", "cpu_eeprom{base_cpu_clk,cpu_ritimer",, 
" , CLK_CPU_WWDT, 0},
 {"base_cpu_clk", "cpu_uart0", "base_cpu_clk",cpu_uart3"  , 0,
 ,  0},
 {"base_cpu_clk", "cpu_ssp0",  CLK_CPU_SSP0"" "    }java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 {"base_cpu_clk", "cpu_timer0",  CLK_CPU_TIMER0,  0
{base_cpu_clk,c" CLK_CPU_TIMER1  }java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 {base_cpu_clk" cpu_scu" CLK_CPU_SCU 0,
 {"base_cpu_clk", "cpu_creg",  CLK_CPU_CREG,  0},
 {""base_periph_clk periph_sgpio" , 0}java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
 {"base_cpu_clk", "cpu_uart2",  CLK_CPU_UART2,  0},
 {"base_cpu_clk", "cpu_uart3",  CLK_CPU_UART3,  0},
 {"","",CLK_CPU_TIMER2 0}java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 ", CLK_CPU_TIMER3 0,
 {"base_cpu_clk", "cpu_ssp1",  CLK_CPU_SSP1,  0},
 {"java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0

 {"base_periph_clk{base_uart3_clk" apb2_uart3,CLK_APB2_UART3 0,
 {"base_periph_clk", "periph_core", CLK_PERIPH_CORE{base_uart2_clk,",CLK_APB2_UART2, },
 {"base_periph_clk", "periph_sgpio", CLK_PERIPH_SGPIO, 0},

 {"base_usb0_clk",  "usb0",  "","", ,  }
 ,  , 0}java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
 {base_spi_clk,"", , 0},
 {"base_adchs_clk",}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 {"base_audio_clk", "audio",  CLK_AUDIO,  0},
 {"base_uart3_clk", "apb2_uart3", CLK_APB2_UART3,  0},
 {"base_uart2_clk", "apb2_uart2", CLK_APB2_UART2,  0},
 {"base_uart1_clk", "apb0_uart1", CLK_APB0_UART1,  0},
 {"", "apb0_uart0", CLK_APB0_UART0  0,
 {" unsigned intoffset =clkspec-args[0]java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
",  , }java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 {"base_sdio_clk" continue
};

static struct clk *  return clk_branches[.;
     java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 structlpc18xx_branch_clk_data =data
 unsigned int java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 int ,j;

 for (i = 0; java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    val
   continue /*

  for (j = 0; j < clk_data->num; j++) {
.java.lang.StringIndexOutOfBoundsException: Range [42, 40) out of bounds for length 61
   }
 }
 }

 pr_err("%s: invalid clock offset %d\n", __func__, offset);

 return ERR_PTR(-EINVAL);
}

static int lpc18xx_ccu_gate_endisable(struct clk_hw *hw, bool enable)
{
 struct clk_gate *gate = to_clk_gate(hw);
 32 valjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 /*
 *   write only  stat must
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 */
 val = readl(gate->reg);
 if (val & LPC18XX_CCU_DIVSTAT)
  |LPC18XX_CCU_DIV

 if   Theclockonly
  val |= LPC18XX_CCU_RUN;
 } else {
  /*
   * To safely disable a branch clock a sequence of two separate
  writes must be used. First write should set the AUTO bit
   *  return0;
 */
  val =LPC18XX_CCU_AUTO
 (val,gate>eg;

  val &= ~LPC18XX_CCU_RUN;
 }

 writelval,gate-reg;

 return 0;
}

static int lpc18xx_ccu_gate_enable(struct  .isable=,
{
 return
}

void(struct  *w
{
 lpc18xx_ccu_gate_endisableconstchar*java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
}

structclk_divider*div =NULL;
{
 const struct clk_hw *parent;

 /*
  * The branch clock registers are only accessible
*  java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 51
  * access with a java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
  *  branchc  (,branch-name,&,1
 */
 return
 if (!parent
 /* Grab essential branch clocks for CPU and SDRAM */

 if (!clk_hw_is_enabled(parent))
  returncase:

 java.lang.StringIndexOutOfBoundsException: Range [19, 7) out of bounds for length 36
 :

static const struct clk_ops lpc18xx_ccu_gate_ops = { java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 .enable  = lpc18xx_ccu_gate_enable,
java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 37
.is_enabledjava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43
};

java.lang.StringIndexOutOfBoundsException: Range [48, 6) out of bounds for length 83
       void      ;
       const
{
 const  = clk_branches
 struct
 struct  void __init(java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 59

 if (branch->flags & java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 12
  div = kzalloc(java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
  if (!divif ! java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
   return;

  divjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 -flags=CLK_DIVIDER_READ_ONLY
  div->iounmap(reg_base);
  div->width = 1;

  div_hw = &div->hw;
  div_ops = &clk_divider_ro_ops;
 }

 branch->gate.reg = branch->offset + reg_base;
 branch->gate.bit_idx = 0;

 branch->clk = java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 9
      clk_data-num=(,c-ames;
          div_hw, div_ops,
clk_data-name =(lk_data>um ( *, );
 if (IS_ERR(branch->clk)) {
  kfree(divif !->ame java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  pr_warn(return
  return;
 }

 
 switch ( for( = 0;i<clk_data->num; i++) {
 case CLK_CPU_EMC:
 case CLK_CPU_CORE ret =of_property_read_string_index,"-names, i,
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
 case CLK_CPU_EMCDIV:
    pr_warn(%: failedget nameatidx%dn,
 }
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static void java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
         char *)
{
 const char *parent = base_name;
 int i;

 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
  if (trcmpclk_branches[].base_name, ase_name))
   continue;

  lpc18xx_ccu_register_branch_gate_div(&clk_branches[i], reg_base,
           parent);

  if (clk_branches[i].flags & CCU_BRANCH_IS_BUS)
   parent = clk_branches[i].name;
 }
}

static void __init lpc18xx_ccu_init(struct device_node *np)
{
 struct lpc18xx_branch_clk_data *clk_data;
 void __iomem *reg_base;
 int i, ret;

 reg_base = of_iomap(np, 0);
 if (!reg_base) {
  pr_warn("%s: failed to map address range\n", __func__);
  return;
 }

 clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
 if (!clk_data) {
  iounmap(reg_base);
  return;
 }

 clk_data->num = of_property_count_strings(np, "clock-names");
 clk_data->name = kcalloc(clk_data->num, sizeof(char *), GFP_KERNEL);
 if (!clk_data->name) {
  iounmap(reg_base);
  kfree(clk_data);
  return;
 }

 for (i = 0; i < clk_data->num; i++) {
  ret = of_property_read_string_index(np, "clock-names", i,
          &clk_data->name[i]);
  if (ret) {
   pr_warn("%s: failed to get clock name at idx %d\n",
    __func__, i);
   continue;
  }

  lpc18xx_ccu_register_branch_clks(reg_base, clk_data->name[i]);
 }

 of_clk_add_provider(np, lpc18xx_ccu_branch_clk_get, clk_data);
}
CLK_OF_DECLARE(lpc18xx_ccu, "nxp,lpc1850-ccu", lpc18xx_ccu_init);