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kernel/linux-imx6_3.14.28/arch/arm/mach-mmp/clock-pxa910.c 2 KB
6b13f685e   김민수   BSP 최초 추가
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  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/list.h>
  #include <linux/io.h>
  #include <linux/clk.h>
  
  #include <mach/addr-map.h>
  
  #include "common.h"
  #include "clock.h"
  
  /*
   * APB Clock register offsets for PXA910
   */
  #define APBC_UART0	APBC_REG(0x000)
  #define APBC_UART1	APBC_REG(0x004)
  #define APBC_GPIO	APBC_REG(0x008)
  #define APBC_PWM1	APBC_REG(0x00c)
  #define APBC_PWM2	APBC_REG(0x010)
  #define APBC_PWM3	APBC_REG(0x014)
  #define APBC_PWM4	APBC_REG(0x018)
  #define APBC_SSP1	APBC_REG(0x01c)
  #define APBC_SSP2	APBC_REG(0x020)
  #define APBC_RTC	APBC_REG(0x028)
  #define APBC_TWSI0	APBC_REG(0x02c)
  #define APBC_KPC	APBC_REG(0x030)
  #define APBC_SSP3	APBC_REG(0x04c)
  #define APBC_TWSI1	APBC_REG(0x06c)
  
  #define APMU_NAND	APMU_REG(0x060)
  #define APMU_USB	APMU_REG(0x05c)
  
  static APBC_CLK(uart1, UART0, 1, 14745600);
  static APBC_CLK(uart2, UART1, 1, 14745600);
  static APBC_CLK(twsi0, TWSI0, 1, 33000000);
  static APBC_CLK(twsi1, TWSI1, 1, 33000000);
  static APBC_CLK(pwm1, PWM1, 1, 13000000);
  static APBC_CLK(pwm2, PWM2, 1, 13000000);
  static APBC_CLK(pwm3, PWM3, 1, 13000000);
  static APBC_CLK(pwm4, PWM4, 1, 13000000);
  static APBC_CLK(gpio, GPIO, 0, 13000000);
  static APBC_CLK(rtc, RTC, 8, 32768);
  
  static APMU_CLK(nand, NAND, 0x19b, 156000000);
  static APMU_CLK(u2o, USB, 0x1b, 480000000);
  
  /* device and clock bindings */
  static struct clk_lookup pxa910_clkregs[] = {
  	INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
  	INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
  	INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL),
  	INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL),
  	INIT_CLKREG(&clk_pwm1, "pxa910-pwm.0", NULL),
  	INIT_CLKREG(&clk_pwm2, "pxa910-pwm.1", NULL),
  	INIT_CLKREG(&clk_pwm3, "pxa910-pwm.2", NULL),
  	INIT_CLKREG(&clk_pwm4, "pxa910-pwm.3", NULL),
  	INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
  	INIT_CLKREG(&clk_gpio, "mmp-gpio", NULL),
  	INIT_CLKREG(&clk_u2o, NULL, "U2OCLK"),
  	INIT_CLKREG(&clk_rtc, "sa1100-rtc", NULL),
  };
  
  void __init pxa910_clk_init(void)
  {
  	clkdev_add_table(ARRAY_AND_SIZE(pxa910_clkregs));
  }