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Fix Freedom KL25Z SysTick rate

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This commit is contained in:
Gregory Nutt
2013-04-17 12:44:13 -06:00
parent 06871729dd
commit 313d1005a8
5 changed files with 17 additions and 382 deletions
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arch/arm/src/kl/Kconfig
+3
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@@ -296,6 +296,9 @@ choice
config KL_SYSTICK_CORECLK
bool "Cortex-M0 core clock"
config KL_SYSTICK_CORECLK_DIV16
bool "Cortex-M0 core clock divided by 16"
endchoice
comment "Kinetis GPIO Interrupt Configuration"
arch/arm/src/kl/chip/kl_clk.h
-288
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@@ -1,288 +0,0 @@
/********************************************************************************************
* arch/arm/src/nuc1xx/chip/nuc_clk.h
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
********************************************************************************************/
#ifndef __ARCH_ARM_SRC_KL_CHIP_KL_CLK_H
#define __ARCH_ARM_SRC_KL_CHIP_KL_CLK_H
/********************************************************************************************
* Included Files
********************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
/********************************************************************************************
* Pre-processor Definitions
********************************************************************************************/
/* Well-known clock frequencies *************************************************************/
#define KL_INTHI_FREQUENCY 22118400
#define KL_INTLO_FREQUENCY 10000
/* Register offsets *************************************************************************/
#define KL_CLK_PWRCON_OFFSET 0x0000 /* System power down control register */
#define KL_CLK_AHBCLK_OFFSET 0x0004 /* AHB devices clock enable control register */
#define KL_CLK_APBCLK_OFFSET 0x0008 /* APB devices clock enable control register */
#define KL_CLK_CLKSTATUS_OFFSET 0x000c /* Clock status monitor register */
#define KL_CLK_CLKSEL0_OFFSET 0x0010 /* Clock source select control register 0 */
#define KL_CLK_CLKSEL1_OFFSET 0x0014 /* Clock source select control register 1 */
#define KL_CLK_CLKSEL2_OFFSET 0x001c /* Clock source select control register 2 */
#define KL_CLK_CLKDIV_OFFSET 0x0018 /* Clock divider number register */
#define KL_CLK_PLLCON_OFFSET 0x0020 /* PLL control register */
#define KL_CLK_FRQDIV_OFFSET 0x0024 /* Frequency divider control register */
/* Register addresses ***********************************************************************/
#define KL_CLK_PWRCON (KL_CLK_BASE+KL_CLK_PWRCON_OFFSET)
#define KL_CLK_AHBCLK (KL_CLK_BASE+KL_CLK_AHBCLK_OFFSET)
#define KL_CLK_APBCLK (KL_CLK_BASE+KL_CLK_APBCLK_OFFSET)
#define KL_CLK_CLKSTATUS (KL_CLK_BASE+KL_CLK_CLKSTATUS_OFFSET)
#define KL_CLK_CLKSEL0 (KL_CLK_BASE+KL_CLK_CLKSEL0_OFFSET)
#define KL_CLK_CLKSEL1 (KL_CLK_BASE+KL_CLK_CLKSEL1_OFFSET)
#define KL_CLK_CLKSEL2 (KL_CLK_BASE+KL_CLK_CLKSEL2_OFFSET)
#define KL_CLK_CLKDIV (KL_CLK_BASE+KL_CLK_CLKDIV_OFFSET)
#define KL_CLK_PLLCON (KL_CLK_BASE+KL_CLK_PLLCON_OFFSET)
#define KL_CLK_FRQDIV (KL_CLK_BASE+KL_CLK_FRQDIV_OFFSET)
/* Register bit-field definitions ***********************************************************/
/* System power down control register */
#define CLK_PWRCON_XTL12M_EN (1 << 0) /* Bit 0: External 4~24 mhz high speed crystal enable */
#define CLK_PWRCON_XTL32K_EN (1 << 1) /* Bit 1: External 32.768 khz low speed crystal enable */
#define CLK_PWRCON_OSC22M_EN (1 << 2) /* Bit 2: Internal 22.1184 MHz high speed oscillator enable */
#define CLK_PWRCON_OSC10K_EN (1 << 3) /* Bit 3: Internal 10KHz low speed oscillator enable */
#define CLK_PWRCON_PD_WU_DLY (1 << 4) /* Bit 4: Enable the wake-up delay counter */
#define CLK_PWRCON_PD_WU_INT_EN (1 << 5) /* Bit 5: Power down mode wake-up interrupt status */
#define CLK_PWRCON_PD_WU_STS (1 << 6) /* Bit 6: Power down mode wake-up interupt status */
#define CLK_PWRCON_PWR_DOWN_EN (1 << 7) /* Bit 7: System power down enable bit */
#define CLK_PWRCON_PD_WAIT_CPU (1 << 8) /* Bit 8: Power down entry condition */
/* AHB devices clock enable control register */
#define CLK_AHBCLK_PDMA_EN (1 << 1) /* Bit 1: PDMA acontroller clock enable control */
#define CLK_AHBCLK_ISP_EN (1 << 2) /* Bit 2: FLASH ISPO controller clock enable control */
#define CLK_AHBCLK_EBI_EN (1 << 3) /* Bit 3: EBI controller clock enable control */
/* APB devices clock enable control register */
#define CLK_APBCLK_WDT_EN (1 << 0) /* Bit 0: Watchdog time clock enable */
#define CLK_APBCLK_RTC_EN (1 << 1) /* Bit 1: Real time clock clock enable */
#define CLK_APBCLK_TMR0_EN (1 << 2) /* Bit 2: Timer0 clock enable */
#define CLK_APBCLK_TMR1_EN (1 << 3) /* Bit 3: Timer1 clock enable */
#define CLK_APBCLK_TMR2_EN (1 << 4) /* Bit 4: Timer2 clock enable */
#define CLK_APBCLK_TMR3_EN (1 << 5) /* Bit 5: Timer3 clock enable */
#define CLK_APBCLK_FDIV_EN (1 << 6) /* Bit 6: Frequency divider output clock enable */
#define CLK_APBCLK_I2C0_EN (1 << 8) /* Bit 8: I2C0 clock enable */
#define CLK_APBCLK_I2C1_EN (1 << 9) /* Bit 9: I2C1 clock enable */
#define CLK_APBCLK_SPI0_EN (1 << 12) /* Bit 12: SPI0 clock enable */
#define CLK_APBCLK_SPI1_EN (1 << 13) /* Bit 13: SPI1 clock enable */
#define CLK_APBCLK_SPI2_EN (1 << 14) /* Bit 14: SPI2 clock enable */
#define CLK_APBCLK_SPI3_EN (1 << 15) /* Bit 15: SPI3 clock enable */
#define CLK_APBCLK_UART0_EN (1 << 16) /* Bit 16: UART0 clock enable */
#define CLK_APBCLK_UART1_EN (1 << 17) /* Bit 17: UART1 clock enable */
#define CLK_APBCLK_UART2_EN (1 << 18) /* Bit 18: UART2 clock enable */
#define CLK_APBCLK_PWM01_EN (1 << 20) /* Bit 20: PWM_01 clock enable */
#define CLK_APBCLK_PWM23_EN (1 << 21) /* Bit 21: PWM_23 clock enable */
#define CLK_APBCLK_PWM45_EN (1 << 22) /* Bit 22: PWM_45 clock enable */
#define CLK_APBCLK_PWM67_EN (1 << 23) /* Bit 23: PWM_67 clock enable */
#define CLK_APBCLK_USBD_EN (1 << 27) /* Bit 27: USB 2.0 FS device controller clock enable */
#define CLK_APBCLK_ADC_EN (1 << 28) /* Bit 28: Analog-digital-converter clock enable */
#define CLK_APBCLK_I2S_EN (1 << 29) /* Bit 29: I2S clock enable */
#define CLK_APBCLK_ACMP_EN (1 << 30) /* Bit 30: Analog comparator clock enable */
#define CLK_APBCLK_PS2_EN (1 << 31) /* Bit 31: PS/2 clock enable */
/* Clock status monitor register */
#define CLK_CLKSTATUS_XTL12M_STB (1 << 0) /* Bit 0: External 4~24 mhz high speed crystal
* clock source stable flag */
#define CLK_CLKSTATUS_STL32K_STB (1 << 1) /* Bit 1: External 32.768 kHz low speed crystal
* clock source stable flag */
#define CLK_CLKSTATUS_PLL_STB (1 << 2) /* Bit 2: Internal PLL clock source stable flag */
#define CLK_CLKSTATUS_OSC10K_STB (1 << 3) /* Bit 3: Internal 10kHz low speed clock source
* stable flag */
#define CLK_CLKSTATUS_OSC22M_STB (1 << 4) /* Bit 4: Internal 22.1184MHz high speed
* osciallator clock source stable flag */
#define CLK_CLKSTATUS_CLK_SW_FAIL (1 << 7) /* Bit 7: Clock switching fail flag */
/* Clock source select control register 0 */
#define CLK_CLKSEL0_HCLK_S_SHIFT (0) /* Bits 0-2: HCLK clock source select */
#define CLK_CLKSEL0_HCLK_S_MASK (7 << CLK_CLKSEL0_HCLK_S_SHIFT)
# define CLK_CLKSEL0_HCLK_S_XTALHI (0 << CLK_CLKSEL0_HCLK_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL0_HCLK_S_XTALLO (1 << CLK_CLKSEL0_HCLK_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL0_HCLK_S_PLL (2 << CLK_CLKSEL0_HCLK_S_SHIFT) /* PLL clock */
# define CLK_CLKSEL0_HCLK_S_INTLO (3 << CLK_CLKSEL0_HCLK_S_SHIFT) /* Internal low speed clock */
# define CLK_CLKSEL0_HCLK_S_INTHI (7 << CLK_CLKSEL0_HCLK_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL0_STCLK_S_SHIFT (3) /* Bits 3-5: Cortex M0 Systick clock source select */
#define CLK_CLKSEL0_STCLK_S_MASK (7 << CLK_CLKSEL0_STCLK_S_SHIFT)
# define CLK_CLKSEL0_STCLK_S_XTALHI (0 << CLK_CLKSEL0_STCLK_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL0_STCLK_S_XTALLO (1 << CLK_CLKSEL0_STCLK_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL0_STCLK_S_XTALDIV2 (2 << CLK_CLKSEL0_STCLK_S_SHIFT) /* High speed XTAL clock/2 */
# define CLK_CLKSEL0_STCLK_S_HCLKDIV2 (3 << CLK_CLKSEL0_STCLK_S_SHIFT) /* HCLK/2 */
# define CLK_CLKSEL0_STCLK_S_INTDIV2 (7 << CLK_CLKSEL0_STCLK_S_SHIFT) /* Internal high speed clock/2 */
/* Clock source select control register 1 */
#define CLK_CLKSEL1_WDT_S_SHIFT (0) /* Bits 0-1: Watchdog timer clock source select */
#define CLK_CLKSEL1_WDT_S_MASK (3 << CLK_CLKSEL1_WDT_S_SHIFT)
# define CLK_CLKSEL1_ADC_S_HCLKDIV (2 << CLK_CLKSEL1_WDT_S_SHIFT) /* HCLK / 2048 */
# define CLK_CLKSEL1_ADC_S_INTLO (3 << CLK_CLKSEL1_WDT_S_SHIFT) /* Internal low speed clock */
#define CLK_CLKSEL1_ADC_S_SHIFT (2) /* Bits 2-3: ADC clock source select */
#define CLK_CLKSEL1_ADC_S_MASK (3 << CLK_CLKSEL1_ADC_S_SHIFT)
# define CLK_CLKSEL1_ADC_S_XTALHI (0 << CLK_CLKSEL1_ADC_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_ADC_S_PLL (1 << CLK_CLKSEL1_ADC_S_SHIFT) /* PLL */
# define CLK_CLKSEL1_ADC_S_INTHI (3 << CLK_CLKSEL1_ADC_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_TMR0_S_SHIFT (8) /* Bits 8-10: Timer0 clock source select */
#define CLK_CLKSEL1_TMR0_S_MASK (7 << CLK_CLKSEL1_TMR0_S_SHIFT)
# define CLK_CLKSEL1_TMR0_S_XTALHI (0 << CLK_CLKSEL1_TMR0_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_TMR0_S_XTALLO (1 << CLK_CLKSEL1_TMR0_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_TMR0_S_HCLK (2 << CLK_CLKSEL1_TMR0_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_TMR0_S_INTHI (7 << CLK_CLKSEL1_TMR0_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_TMR1_S_SHIFT (12) /* Bits 12-14: Timer1 clock source select */
#define CLK_CLKSEL1_TMR1_S_MASK (7 << CLK_CLKSEL1_TMR1_S_SHIFT)
# define CLK_CLKSEL1_TMR1_S_XTALHI (0 << CLK_CLKSEL1_TMR1_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_TMR1_S_XTALLO (1 << CLK_CLKSEL1_TMR1_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_TMR1_S_HCLK (2 << CLK_CLKSEL1_TMR1_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_TMR1_S_INTHI (7 << CLK_CLKSEL1_TMR1_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_TMR2_S_SHIFT (16) /* Bits 16-18: Timer2 clock source select */
#define CLK_CLKSEL1_TMR2_S_MASK (7 << CLK_CLKSEL1_TMR2_S_SHIFT)
# define CLK_CLKSEL1_TMR2_S_XTALHI (0 << CLK_CLKSEL1_TMR2_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_TMR2_S_XTALLO (1 << CLK_CLKSEL1_TMR2_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_TMR2_S_HCLK (2 << CLK_CLKSEL1_TMR2_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_TMR2_S_INTHI (7 << CLK_CLKSEL1_TMR2_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_TMR3_S_SHIFT (20) /* Bits 20-22: Timer3 clock source select */
#define CLK_CLKSEL1_TMR3_S_MASK (7 << CLK_CLKSEL1_TMR3_S_SHIFT)
# define CLK_CLKSEL1_TMR3_S_XTALHI (0 << CLK_CLKSEL1_TMR3_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_TMR3_S_XTALLO (1 << CLK_CLKSEL1_TMR3_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_TMR3_S_HCLK (2 << CLK_CLKSEL1_TMR3_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_TMR3_S_INTHI (7 << CLK_CLKSEL1_TMR3_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_UART_S_SHIFT (24) /* Bits 24-25: UART clock source select */
#define CLK_CLKSEL1_UART_S_MASK (3 << CLK_CLKSEL1_UART_S_SHIFT)
# define CLK_CLKSEL1_UART_S_XTALHI (0 << CLK_CLKSEL1_UART_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_UART_S_PLL (1 << CLK_CLKSEL1_UART_S_SHIFT) /* PLL */
# define CLK_CLKSEL1_UART_S_INTHI (3 << CLK_CLKSEL1_UART_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_PWM01_S_SHIFT (28) /* Bits 28-29: PWM0 and PWM1 clock source select */
#define CLK_CLKSEL1_PWM01_S_MASK (3 << CLK_CLKSEL1_PWM01_S_SHIFT)
# define CLK_CLKSEL1_PWM01_S_XTALHI (0 << CLK_CLKSEL1_PWM01_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_PWM01_S_XTALLO (1 << CLK_CLKSEL1_PWM01_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_PWM01_S_HCLK (2 << CLK_CLKSEL1_PWM01_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_PWM01_S_INTHI (3 << CLK_CLKSEL1_PWM01_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL1_PWM23_S_SHIFT (30) /* Bits 30-31: PWM2 and PWM3 clock source select */
#define CLK_CLKSEL1_PWM23_S_MASK (3 << CLK_CLKSEL1_PWM23_S_SHIFT)
# define CLK_CLKSEL1_PWM23_S_XTALHI (0 << CLK_CLKSEL1_PWM23_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_PWM23_S_XTALLO (1 << CLK_CLKSEL1_PWM23_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_PWM23_S_HCLK (2 << CLK_CLKSEL1_PWM23_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_PWM23_S_INTHI (3 << CLK_CLKSEL1_PWM23_S_SHIFT) /* Internal high speed clock */
/* Clock source select control register 2 */
#define CLK_CLKSEL2_I2S_S_SHIFT (0) /* Bits 0-1: I2S clock source select */
#define CLK_CLKSEL2_I2S_S_MASK (3 << CLK_CLKSEL2_I2S_S_SHIFT)
# define CLK_CLKSEL1_I2S_S_XTALHI (0 << CLK_CLKSEL2_I2S_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_I2S_S_XTALLO (1 << CLK_CLKSEL2_I2S_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_I2S_S_HCLK (2 << CLK_CLKSEL2_I2S_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_I2S_S_INTHI (3 << CLK_CLKSEL2_I2S_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL2_FRQDIV_S_SHIFT (2) /* Bits 2-3: Frequency divider clock source select */
#define CLK_CLKSEL2_FRQDIV_S_MASK (3 << CLK_CLKSEL2_FRQDIV_S_SHIFT)
# define CLK_CLKSEL1_FRQDIV_S_XTALHI (0 << CLK_CLKSEL2_FRQDIV_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_FRQDIV_S_XTALLO (1 << CLK_CLKSEL2_FRQDIV_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_FRQDIV_S_HCLK (2 << CLK_CLKSEL2_FRQDIV_S_SHIFT) /* HCLK */
#define CLK_CLKSEL2_PWM45_S_SHIFT (4) /* Bits 4-5: PWM4 and PWM5 clock source select */
#define CLK_CLKSEL2_PWM45_S_MASK (3 << CLK_CLKSEL2_PWM45_S_SHIFT)
# define CLK_CLKSEL1_PWM45_S_XTALHI (0 << CLK_CLKSEL2_PWM45_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_PWM45_S_XTALLO (1 << CLK_CLKSEL2_PWM45_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_PWM45_S_HCLK (2 << CLK_CLKSEL2_PWM45_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_PWM45_S_INTHI (3 << CLK_CLKSEL2_PWM45_S_SHIFT) /* Internal high speed clock */
#define CLK_CLKSEL2_PWM67_S_SHIFT (6) /* Bits 6-7: PWM6 and PWM7 clock source select */
#define CLK_CLKSEL2_PWM67_S_MASK (3 << CLK_CLKSEL2_PWM67_S_SHIFT)
# define CLK_CLKSEL1_PWM67_S_XTALHI (0 << CLK_CLKSEL2_PWM67_S_SHIFT) /* High speed XTAL clock */
# define CLK_CLKSEL1_PWM67_S_XTALLO (1 << CLK_CLKSEL2_PWM67_S_SHIFT) /* Low speed XTAL clock */
# define CLK_CLKSEL1_PWM67_S_HCLK (2 << CLK_CLKSEL2_PWM67_S_SHIFT) /* HCLK */
# define CLK_CLKSEL1_PWM67_S_INTHI (3 << CLK_CLKSEL2_PWM67_S_SHIFT) /* Internal high speed clock */
/* Clock divider number register */
#define CLK_CLKDIV_HCLK_N_SHIFT (0) /* Bits 0-3: HCLCK divide from clock source */
#define CLK_CLKDIV_HCLK_N_MASK (15 << CLK_CLKDIV_HCLK_N_SHIFT)
# define CLK_CLKDIV_HCLK_N(n) (((n)-1) << CLK_CLKDIV_HCLK_N_SHIFT) /* n=1..16 */
#define CLK_CLKDIV_USB_N_SHIFT (4) /* Bits 4-7: USBD divide from clock source */
#define CLK_CLKDIV_USB_N_MASK (15 << CLK_CLKDIV_USB_N_SHIFT)
# define CLK_CLKDIV_USB_N(n) (((n)-1) << CLK_CLKDIV_USB_N_SHIFT) /* n=1..16 */
#define CLK_CLKDIV_UART_N_SHIFT (8) /* Bits 8-11 UART divide from clock source */
#define CLK_CLKDIV_UART_N_MASK (15 << CLK_CLKDIV_UART_N_SHIFT)
# define CLK_CLKDIV_UART_N(n) (((n)-1) << CLK_CLKDIV_UART_N_SHIFT) /* n=1..16 */
#define CLK_CLKDIV_ADC_N_SHIFT (16) /* Bits 16-23: ADC divide from clock source */
#define CLK_CLKDIV_ADC_N_MASK (255 << CLK_CLKDIV_ADC_N_SHIFT)
# define CLK_CLKDIV_ADC_N(n) (((n)-1) << CLK_CLKDIV_UART_N_SHIFT) /* n=1..256 */
/* PLL control register */
#define CLK_PLLCON_FB_DV_SHIFT (0) /* Bits 0-8: PLL feedback divider control pins */
#define CLK_PLLCON_FB_DV_MASK (0x1ff << CLK_PLLCON_FB_DV_SHIFT)
# define CLK_PLLCON_FB_DV(n) ((n) << CLK_PLLCON_FB_DV_SHIFT)
#define CLK_PLLCON_IN_DV_SHIFT (9) /* bits 9-13: PLL input divider control pins */
#define CLK_PLLCON_IN_DV_MASK (0x1f << CLK_PLLCON_IN_DV_SHIFT)
# define CLK_PLLCON_IN_DV(n) ((n) << CLK_PLLCON_IN_DV_SHIFT)
#define CLK_PLLCON_OUT_DV_SHIFT (14) /* Bits 14-15: PLL output divider control pins */
#define CLK_PLLCON_OUT_DV_MASK (3 << CLK_PLLCON_OUT_DV_SHIFT)
# define CLK_PLLCON_OUT_DV(n) ((n) << CLK_PLLCON_OUT_DV_SHIFT)
#define CLK_PLLCON_PD (1 << 16) /* Bit 16: Power down mode */
#define CLK_PLLCON_BP (1 << 17) /* Bit 17: PLL bypass control */
#define CLK_PLLCON_OE (1 << 18) /* Bit 18: PLL OE (FOUT enable) pin control */
#define CLK_PLLCON_PLL_SRC (1 << 19) /* Bit 19: PLL source clock select */
/* Frequency divider control register */
#define CLK_FRQDIV_FSEL_SHIFT (0) /* Bits 0-3: Divider output frequency selection bits */
#define CLK_FRQDIV_FSEL_MASK (15 << CLK_FRQDIV_FSEL_SHIFT)
# define CLK_FRQDIV_FSEL(n) ((n) << CLK_FRQDIV_FSEL_SHIFT) /* fout = fin / (2^(n+1)) */
#define CLK_FRQDIV_DIVIDER_EN (1 << 4) /* Bit 4: Frequency divider enable bit */
/********************************************************************************************
* Public Types
********************************************************************************************/
/********************************************************************************************
* Public Data
********************************************************************************************/
/********************************************************************************************
* Public Functions
********************************************************************************************/
#endif /* __ARCH_ARM_SRC_KL_CHIP_KL_CLK_H */
arch/arm/src/kl/kl_start.c
+2 -2
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@@ -72,13 +72,13 @@
*/
#define IDLE_STACK ((uint32_t)&_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
#define HEAP_BASE ((uint32_t)&_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
#define HEAP_BASE ((uint32_t)&_ebss+CONFIG_IDLETHREAD_STACKSIZE)
/****************************************************************************
* Public Data
****************************************************************************/
const uint32_t g_idle_topstack = HEAP_BASE;
const uint32_t g_idle_topstack = IDLE_STACK;
/****************************************************************************
* Private Functions
arch/arm/src/kl/kl_timerisr.c
+10 -90
View File
@@ -51,26 +51,20 @@
#include "up_arch.h"
#include "chip.h"
#include "chip/kl_clk.h"
#include "chip/kl_gcr.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Get the frequency of the selected clock source */
/* "The CLKSOURCE bit in SysTick Control and Status register selects either
* the core clock (when CLKSOURCE = 1) or a divide-by-16 of the core clock
* (when CLKSOURCE = 0). ..."
*/
#if defined(CONFIG_KL_SYSTICK_CORECLK)
# define SYSTICK_CLOCK BOARD_HCLK_FREQUENCY /* Core clock */
#elif defined(CONFIG_KL_SYSTICK_XTALHI)
# define SYSTICK_CLOCK BOARD_XTALHI_FREQUENCY /* High speed XTAL clock */
#elif defined(CONFIG_KL_SYSTICK_XTALLO)
# define SYSTICK_CLOCK BOARD_XTALLO_FREQUENCY /* Low speed XTAL clock */
#elif defined(CONFIG_KL_SYSTICK_XTALHId2)
# define SYSTICK_CLOCK (BOARD_XTALHI_FREQUENCY/2) /* High speed XTAL clock/2 */
#elif defined(CONFIG_KL_SYSTICK_HCLKd2)
# define SYSTICK_CLOCK (BOARD_HCLK_FREQUENCY/2) /* HCLK/2 */
#elif defined(CONFIG_KL_SYSTICK_INTHId2)
# define SYSTICK_CLOCK (KL_INTHI_FREQUENCY/2) /* Internal high speed clock/2 */
# define SYSTICK_CLOCK BOARD_CORECLK_FREQ /* Core clock */
#elif defined(CONFIG_KL_SYSTICK_CORECLK_DIV16)
# define (SYSTICK_CLOCK BOARD_CORECLK_FREQ / 16) /* Core clock divided by 16 */
#endif
/* The desired timer interrupt frequency is provided by the definition
@@ -107,50 +101,6 @@
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: kl_unlock
*
* Description:
* Unlock registers
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_KL_SYSTICK_CORECLK
static inline void kl_unlock(void)
{
putreg32(0x59, KL_GCR_REGWRPROT);
putreg32(0x16, KL_GCR_REGWRPROT);
putreg32(0x88, KL_GCR_REGWRPROT);
}
#endif
/****************************************************************************
* Name: kl_clock
*
* Description:
* Lok registers
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_KL_SYSTICK_CORECLK
static inline void kl_lock(void)
{
putreg32(0, KL_GCR_REGWRPROT);
}
#endif
/****************************************************************************
* Global Functions
****************************************************************************/
@@ -185,37 +135,6 @@ void up_timerinit(void)
{
uint32_t regval;
/* Configure the SysTick clock source. This is only necessary if we are not
* using the Cortex-M0 core clock as the frequency source.
*/
#ifndef CONFIG_KL_SYSTICK_CORECLK
/* This field is write protected and must be unlocked */
kl_unlock();
/* Read the CLKSEL0 register and set the STCLK_S field appropriately */
regval = getreg32(KL_CLK_CLKSEL0);
regval &= ~CLK_CLKSEL0_STCLK_S_MASK;
#if defined(CONFIG_KL_SYSTICK_XTALHI)
regval |= CLK_CLKSEL0_STCLK_S_XTALHI; /* High speed XTAL clock */
#elif defined(CONFIG_KL_SYSTICK_XTALLO)
regval |= CLK_CLKSEL0_STCLK_S_XTALLO; /* Low speed XTAL clock */
#elif defined(CONFIG_KL_SYSTICK_XTALHId2)
regval |= CLK_CLKSEL0_STCLK_S_XTALDIV2; /* High speed XTAL clock/2 */
#elif defined(CONFIG_KL_SYSTICK_HCLKd2)
regval |= CLK_CLKSEL0_STCLK_S_HCLKDIV2; /* HCLK/2 */
#elif defined(CONFIG_KL_SYSTICK_INTHId2)
regval |= CLK_CLKSEL0_STCLK_S_INTDIV2; /* Internal high speed clock/2 */
#endif
putreg32(regval, KL_CLK_CLKSEL0);
/* Re-lock the register */
kl_lock();
#endif
/* Set the SysTick interrupt to the default priority */
regval = getreg32(ARMV6M_SYSCON_SHPR3);
@@ -231,8 +150,9 @@ void up_timerinit(void)
(void)irq_attach(KL_IRQ_SYSTICK, (xcpt_t)up_timerisr);
/* Enable SysTick interrupts. We need to select the core clock here if
* we are not using one of the alternative clock sources above.
/* Enable SysTick interrupts. "The CLKSOURCE bit in SysTick Control and
* Status register selects either the core clock (when CLKSOURCE = 1) or
* a divide-by-16 of the core clock (when CLKSOURCE = 0). ..."
*/
#ifdef CONFIG_KL_SYSTICK_CORECLK
arch/arm/src/nuc1xx/nuc_start.c
+2 -2
View File
@@ -72,13 +72,13 @@
*/
#define IDLE_STACK ((uint32_t)&_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
#define HEAP_BASE ((uint32_t)&_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
#define HEAP_BASE ((uint32_t)&_ebss+CONFIG_IDLETHREAD_STACKSIZE)
/****************************************************************************
* Public Data
****************************************************************************/
const uint32_t g_idle_topstack = HEAP_BASE;
const uint32_t g_idle_topstack = IDLE_STACK;
/****************************************************************************
* Private Functions