259 lines
5.9 KiB
C
259 lines
5.9 KiB
C
/*
|
||
* File : board.c
|
||
* This file is part of RT-Thread RTOS
|
||
* COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
|
||
*
|
||
* The license and distribution terms for this file may be
|
||
* found in the file LICENSE in this distribution or at
|
||
* http://www.rt-thread.org/license/LICENSE
|
||
*
|
||
* Change Logs:
|
||
* Date Author Notes
|
||
* 2010-06-25 Bernard first version
|
||
* 2011-08-08 lgnq modified for Loongson LS1B
|
||
* 2015-07-06 chinesebear modified for Loongson LS1C
|
||
*/
|
||
|
||
#include <rtthread.h>
|
||
#include <drivers/spi.h>
|
||
#include <rthw.h>
|
||
|
||
#include "board.h"
|
||
#include "uart.h"
|
||
#include "ls1c.h"
|
||
#include "ls1c_pin.h"
|
||
#include "ls1c_spi.h"
|
||
#include "ls1c_spi.h"
|
||
#include "drv_spi.h"
|
||
|
||
/**
|
||
* @addtogroup Loongson LS1B
|
||
*/
|
||
|
||
/*@{*/
|
||
|
||
/**
|
||
* This is the timer interrupt service routine.
|
||
*/
|
||
void rt_hw_timer_handler(void)
|
||
{
|
||
unsigned int count;
|
||
|
||
count = read_c0_compare();
|
||
write_c0_compare(count);
|
||
write_c0_count(0);
|
||
|
||
/* increase a OS tick */
|
||
rt_tick_increase();
|
||
}
|
||
|
||
/**
|
||
* This function will initial OS timer
|
||
*/
|
||
void rt_hw_timer_init(void)
|
||
{
|
||
write_c0_compare(CPU_HZ/2/RT_TICK_PER_SECOND);
|
||
write_c0_count(0);
|
||
}
|
||
|
||
|
||
/**
|
||
* init hardware FPU
|
||
*/
|
||
void rt_hw_fpu_init(void)
|
||
{
|
||
rt_uint32_t c0_status = 0;
|
||
rt_uint32_t c1_status = 0;
|
||
|
||
// ʹÄÜд¦ÀíÆ÷1--FPU
|
||
c0_status = read_c0_status();
|
||
c0_status |= (ST0_CU1 | ST0_FR);
|
||
write_c0_status(c0_status);
|
||
|
||
// ÅäÖÃFPU
|
||
c1_status = read_c1_status();
|
||
c1_status |= (FPU_CSR_FS | FPU_CSR_FO | FPU_CSR_FN); // set FS, FO, FN
|
||
c1_status &= ~(FPU_CSR_ALL_E); // disable exception
|
||
c1_status = (c1_status & (~FPU_CSR_RM)) | FPU_CSR_RN; // set RN
|
||
write_c1_status(c1_status);
|
||
|
||
return ;
|
||
}
|
||
|
||
|
||
/**
|
||
* This function will initial sam7s64 board.
|
||
*/
|
||
void rt_hw_board_init(void)
|
||
{
|
||
#ifdef RT_USING_UART
|
||
/* init hardware UART device */
|
||
rt_hw_uart_init();
|
||
#endif
|
||
|
||
#ifdef RT_USING_CONSOLE
|
||
/* set console device */
|
||
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
|
||
#endif
|
||
|
||
|
||
#ifdef RT_USING_I2C
|
||
#ifdef RT_USING_I2C0
|
||
/*
|
||
pin_set_purpose(2, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(3, PIN_PURPOSE_OTHER);
|
||
pin_set_remap(2, PIN_REMAP_SECOND);
|
||
pin_set_remap(3, PIN_REMAP_SECOND);
|
||
*/
|
||
#endif
|
||
#ifdef RT_USING_I2C1
|
||
pin_set_purpose(2, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(3, PIN_PURPOSE_OTHER);
|
||
pin_set_remap(2, PIN_REMAP_SECOND);
|
||
pin_set_remap(3, PIN_REMAP_SECOND);
|
||
#endif
|
||
#ifdef RT_USING_I2C2
|
||
pin_set_purpose(51, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(50, PIN_PURPOSE_OTHER);
|
||
pin_set_remap(51, PIN_REMAP_FOURTH);
|
||
pin_set_remap(50, PIN_REMAP_FOURTH);
|
||
#endif
|
||
rt_i2c_init();
|
||
#endif
|
||
|
||
#ifdef RT_USING_SPI
|
||
|
||
#ifdef RT_USING_SPI0
|
||
pin_set_purpose(78, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(79, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(80, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(83, PIN_PURPOSE_OTHER);//cs2 - SD card
|
||
pin_set_purpose(82, PIN_PURPOSE_OTHER);//cs1
|
||
pin_set_remap(78, PIN_REMAP_FOURTH);
|
||
pin_set_remap(79, PIN_REMAP_FOURTH);
|
||
pin_set_remap(80, PIN_REMAP_FOURTH);
|
||
pin_set_remap(83, PIN_REMAP_FOURTH);//cs2 - SD card
|
||
pin_set_remap(82, PIN_REMAP_FOURTH);//cs1
|
||
ls1c_spi_bus_register(LS1C_SPI_0,"spi0");
|
||
#endif
|
||
|
||
#ifdef RT_USING_SPI1
|
||
pin_set_purpose(46, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(47, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(48, PIN_PURPOSE_OTHER);
|
||
pin_set_purpose(49, PIN_PURPOSE_OTHER);//CS0 - touch screen
|
||
pin_set_remap(46, PIN_REMAP_THIRD);
|
||
pin_set_remap(47, PIN_REMAP_THIRD);
|
||
pin_set_remap(48, PIN_REMAP_THIRD);
|
||
pin_set_remap(49, PIN_REMAP_THIRD);//CS0 - touch screen
|
||
ls1c_spi_bus_register(LS1C_SPI_1,"spi1");
|
||
|
||
#endif
|
||
#ifdef RT_USING_SPI0
|
||
/* attach cs */
|
||
{
|
||
static struct rt_spi_device spi_device1;
|
||
static struct rt_spi_device spi_device2;
|
||
static struct ls1c_spi_cs spi_cs1;
|
||
static struct ls1c_spi_cs spi_cs2;
|
||
|
||
/* spi02: CS2 SD Card*/
|
||
spi_cs2.cs = LS1C_SPI_CS_2;
|
||
rt_spi_bus_attach_device(&spi_device2, "spi02", "spi0", (void*)&spi_cs2);
|
||
spi_cs1.cs = LS1C_SPI_CS_1;
|
||
rt_spi_bus_attach_device(&spi_device1, "spi01", "spi0", (void*)&spi_cs1);
|
||
msd_init("sd0", "spi02");
|
||
}
|
||
#endif
|
||
#ifdef RT_USING_SPI1
|
||
{
|
||
static struct rt_spi_device spi_device;
|
||
static struct ls1c_spi_cs spi_cs;
|
||
|
||
/* spi10: CS0 Touch*/
|
||
spi_cs.cs = LS1C_SPI_CS_0;
|
||
rt_spi_bus_attach_device(&spi_device, "spi10", "spi1", (void*)&spi_cs);
|
||
}
|
||
#endif
|
||
|
||
#endif
|
||
|
||
|
||
/* init operating system timer */
|
||
rt_hw_timer_init();
|
||
|
||
#ifdef RT_USING_FPU
|
||
/* init hardware fpu */
|
||
rt_hw_fpu_init();
|
||
#endif
|
||
|
||
rt_kprintf("current sr: 0x%08x\n", read_c0_status());
|
||
}
|
||
|
||
|
||
#ifdef RT_USING_RTGUI
|
||
#include <rtgui/driver.h>
|
||
#include "display_controller.h"
|
||
/* initialize for gui driver */
|
||
int rtgui_lcd_init(void)
|
||
{
|
||
rt_device_t dc;
|
||
rt_kprintf("DC initied\n");
|
||
|
||
pin_set_purpose(76, PIN_PURPOSE_OTHER);
|
||
pin_set_remap(76, PIN_REMAP_DEFAULT);
|
||
|
||
/* init Display Controller */
|
||
rt_hw_dc_init();
|
||
|
||
/* find Display Controller device */
|
||
dc = rt_device_find("dc");
|
||
|
||
/* set Display Controller device as rtgui graphic driver */
|
||
rtgui_graphic_set_device(dc);
|
||
|
||
|
||
return 0;
|
||
}
|
||
INIT_DEVICE_EXPORT(rtgui_lcd_init);
|
||
#endif
|
||
|
||
#define __raw_out_put(unr) \
|
||
while (*ptr) \
|
||
{ \
|
||
if (*ptr == '\n') \
|
||
{ \
|
||
/* FIFO status, contain valid data */ \
|
||
while (!(UART_LSR(UART##unr##_BASE) & (UARTLSR_TE | UARTLSR_TFE))); \
|
||
/* write data */ \
|
||
UART_DAT(UART##unr##_BASE) = '\r'; \
|
||
} \
|
||
/* FIFO status, contain valid data */ \
|
||
while (!(UART_LSR(UART##unr##_BASE) & (UARTLSR_TE | UARTLSR_TFE))); \
|
||
/* write data */ \
|
||
UART_DAT(UART##unr##_BASE) = *ptr; \
|
||
ptr ++; \
|
||
}
|
||
|
||
/* UART line status register value */
|
||
#define UARTLSR_ERROR (1 << 7)
|
||
#define UARTLSR_TE (1 << 6)
|
||
#define UARTLSR_TFE (1 << 5)
|
||
#define UARTLSR_BI (1 << 4)
|
||
#define UARTLSR_FE (1 << 3)
|
||
#define UARTLSR_PE (1 << 2)
|
||
#define UARTLSR_OE (1 << 1)
|
||
#define UARTLSR_DR (1 << 0)
|
||
void rt_hw_console_output(const char *ptr)
|
||
{
|
||
#if defined(RT_USING_UART0)
|
||
__raw_out_put(0);
|
||
#elif defined(RT_USING_UART2)
|
||
__raw_out_put(2);
|
||
#elif defined(RT_USING_UART3)
|
||
__raw_out_put(3);
|
||
#endif
|
||
}
|
||
|
||
/*@}*/
|