Commit 1d173574 authored by Grzegorz Daniluk's avatar Grzegorz Daniluk

wrcore_v2: adding syscon driver

parent 097b2d00
#include "syscon.h"
/****************************
* TIMER
***************************/
void timer_init(uint32_t enable)
{
if(enable)
syscon->TCR |= SYSC_TCR_ENABLE;
else
syscon->TCR &= !SYSC_TCR_ENABLE;
}
uint32_t timer_get_tics()
{
return syscon->TVR;
}
void timer_delay(uint32_t how_long)
{
uint32_t t_start;
timer_init(1);
do
{
t_start = timer_get_tics();
} while(t_start > UINT32_MAX - how_long); //in case of overflow
while(t_start + how_long > timer_get_tics());
}
/*
Register definitions for slave core: WR Core System Controller
* File : wrc_syscon_regs.h
* Author : auto-generated by wbgen2 from wrc_syscon_wb.wb
* Created : Wed Nov 30 15:46:28 2011
* Standard : ANSI C
THIS FILE WAS GENERATED BY wbgen2 FROM SOURCE FILE wrc_syscon_wb.wb
DO NOT HAND-EDIT UNLESS IT'S ABSOLUTELY NECESSARY!
*/
#ifndef __WBGEN2_REGDEFS_WRC_SYSCON_WB_WB
#define __WBGEN2_REGDEFS_WRC_SYSCON_WB_WB
#include <inttypes.h>
#if defined( __GNUC__)
#define PACKED __attribute__ ((packed))
#else
#error "Unsupported compiler?"
#endif
#ifndef __WBGEN2_MACROS_DEFINED__
#define __WBGEN2_MACROS_DEFINED__
#define WBGEN2_GEN_MASK(offset, size) (((1<<(size))-1) << (offset))
#define WBGEN2_GEN_WRITE(value, offset, size) (((value) & ((1<<(size))-1)) << (offset))
#define WBGEN2_GEN_READ(reg, offset, size) (((reg) >> (offset)) & ((1<<(size))-1))
#define WBGEN2_SIGN_EXTEND(value, bits) (((value) & (1<<bits) ? ~((1<<(bits))-1): 0 ) | (value))
#endif
/* definitions for register: Syscon reset register */
/* definitions for field: Reset trigger in reg: Syscon reset register */
#define SYSC_RSTR_TRIG_MASK WBGEN2_GEN_MASK(0, 28)
#define SYSC_RSTR_TRIG_SHIFT 0
#define SYSC_RSTR_TRIG_W(value) WBGEN2_GEN_WRITE(value, 0, 28)
#define SYSC_RSTR_TRIG_R(reg) WBGEN2_GEN_READ(reg, 0, 28)
/* definitions for field: Reset line state value in reg: Syscon reset register */
#define SYSC_RSTR_RST WBGEN2_GEN_MASK(28, 1)
/* definitions for register: GPIO Set/Readback Register */
/* definitions for field: Status LED in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_LED_STAT WBGEN2_GEN_MASK(0, 1)
/* definitions for field: Link LED in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_LED_LINK WBGEN2_GEN_MASK(1, 1)
/* definitions for field: FMC I2C bitbanged SCL in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_FMC_SCL WBGEN2_GEN_MASK(2, 1)
/* definitions for field: FMC I2C bitbanged SDA in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_FMC_SDA WBGEN2_GEN_MASK(3, 1)
/* definitions for field: Network AP reset in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_NET_RST WBGEN2_GEN_MASK(4, 1)
/* definitions for field: SPEC Pushbutton 1 state in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_BTN1 WBGEN2_GEN_MASK(5, 1)
/* definitions for field: SPEC Pushbutton 2 state in reg: GPIO Set/Readback Register */
#define SYSC_GPSR_BTN2 WBGEN2_GEN_MASK(6, 1)
/* definitions for register: GPIO Clear Register */
/* definitions for field: Status LED in reg: GPIO Clear Register */
#define SYSC_GPCR_LED_STAT WBGEN2_GEN_MASK(0, 1)
/* definitions for field: Link LED in reg: GPIO Clear Register */
#define SYSC_GPCR_LED_LINK WBGEN2_GEN_MASK(1, 1)
/* definitions for field: FMC I2C bitbanged SCL in reg: GPIO Clear Register */
#define SYSC_GPCR_FMC_SCL WBGEN2_GEN_MASK(2, 1)
/* definitions for field: FMC I2C bitbanged SDA in reg: GPIO Clear Register */
#define SYSC_GPCR_FMC_SDA WBGEN2_GEN_MASK(3, 1)
/* definitions for register: Hardware Feature Register */
/* definitions for field: Memory size in reg: Hardware Feature Register */
#define SYSC_HWFR_MEMSIZE_MASK WBGEN2_GEN_MASK(0, 4)
#define SYSC_HWFR_MEMSIZE_SHIFT 0
#define SYSC_HWFR_MEMSIZE_W(value) WBGEN2_GEN_WRITE(value, 0, 4)
#define SYSC_HWFR_MEMSIZE_R(reg) WBGEN2_GEN_READ(reg, 0, 4)
/* definitions for register: Timer Control Register */
/* definitions for field: Timer Divider in reg: Timer Control Register */
#define SYSC_TCR_TDIV_MASK WBGEN2_GEN_MASK(0, 12)
#define SYSC_TCR_TDIV_SHIFT 0
#define SYSC_TCR_TDIV_W(value) WBGEN2_GEN_WRITE(value, 0, 12)
#define SYSC_TCR_TDIV_R(reg) WBGEN2_GEN_READ(reg, 0, 12)
/* definitions for field: Timer Enable in reg: Timer Control Register */
#define SYSC_TCR_ENABLE WBGEN2_GEN_MASK(31, 1)
/* definitions for register: Timer Counter Value Register */
/* [0x0]: REG Syscon reset register */
#define SYSC_REG_RSTR 0x00000000
/* [0x4]: REG GPIO Set/Readback Register */
#define SYSC_REG_GPSR 0x00000004
/* [0x8]: REG GPIO Clear Register */
#define SYSC_REG_GPCR 0x00000008
/* [0xc]: REG Hardware Feature Register */
#define SYSC_REG_HWFR 0x0000000c
/* [0x10]: REG Timer Control Register */
#define SYSC_REG_TCR 0x00000010
/* [0x14]: REG Timer Counter Value Register */
#define SYSC_REG_TVR 0x00000014
#endif
#ifndef __SYSCON_H
#define __SYSCON_H
#include <inttypes.h>
#include "board.h"
#include <hw/wrc_syscon_regs.h>
struct SYSCON_WB
{
uint32_t RSTR; /*Syscon Reset Register*/
uint32_t GPSR; /*GPIO Set/Readback Register*/
uint32_t GPCR; /*GPIO Clear Register*/
uint32_t HWFR; /*Hardware Feature Register*/
uint32_t TCR; /*Timer Control Register*/
uint32_t TVR; /*Timer Counter Value Register*/
};
/*GPIO pins*/
#define GPIO_LED_LINK SYSC_GPSR_LED_LINK
#define GPIO_LED_STAT SYSC_GPSR_LED_STAT
#define GPIO_SCL SYSC_GPSR_FMC_SCL
#define GPIO_SDA SYSC_GPSR_FMC_SDA
#define GPIO_BTN1 SYSC_GPSR_BTN1
#define GPIO_BTN2 SYSC_GPSR_BTN2
void timer_init(uint32_t enable);
uint32_t timer_get_tics();
void timer_delay(uint32_t how_long);
static volatile struct SYSCON_WB *syscon = (volatile struct SYSCON_WB *) BASE_SYSCON;
/****************************
* GPIO
***************************/
static inline void gpio_out(int pin, int val)
{
if(val)
syscon->GPSR = pin;
else
syscon->GPCR = pin;
}
static inline int gpio_in(int pin)
{
return syscon->GPSR & pin ? 1: 0;
}
#endif
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