/*
+ * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include "common.h"
-
#include <avr/interrupt.h>
+#include <avr/wdt.h>
#include <stdlib.h>
#include <stdio.h>
#include "config.h"
-#include "debug.h"
+#include "ff.h"
#include "z80-if.h"
#include "i2c.h"
#include "con-utils.h"
#include "cli.h"
#include "env.h"
#include "z180-serv.h"
-#include "spi.h"
#include "gpio.h"
+#include "time.h"
+#include "rtc.h"
+#include "debug.h"
-static uint8_t mcusr;
+uint8_t mcusr __attribute__ ((section (".noinit")));
-/*--------------------------------------------------------------------------*/
#if DEBUG
-
__attribute__ ((naked)) __attribute__ ((section (".init3")))
void preset_ram (void)
{
*p = 0xdd;
}
+#endif
+
+__attribute__ ((naked)) __attribute__ ((section (".init3")))
+void get_mcusr (void)
+{
+ /* save and clear reset reason(s) */
+ /* TODO: move to init section? */
+ mcusr = MCUSR;
+ MCUSR = 0;
+
+ wdt_disable();
+}
+
+/*--------------------------------------------------------------------------*/
+#if DEBUG
static const FLASH char * const FLASH rreasons[] = {
FSTR("Power on"),
static
void setup_avr(void)
{
- /* save and clear reset reason(s) */
- /* TODO: move to init section? */
- mcusr = MCUSR;
- MCUSR = 0;
-
- /* WD */
-
/* CPU */
/* Disable JTAG Interface regardless of the JTAGEN fuse setting. */
TCCR3B = (0b01<<WGM32)|(0b001<<CS30); /* CTC Mode, Prescaler 1 */
TIMSK3 = _BV(OCIE3A); /* Enable TC2.oca interrupt */
- /* SPI as master */
- PRR0 &= ~_BV(PRSPI);
- SPI_DDR = (SPI_DDR & ~_BV(SPI_MISO))
- | _BV(SPI_MOSI) | _BV(SPI_SCK) | _BV(SPI_SS);
- SPI_PORT = (SPI_PORT & ~(_BV(SPI_MOSI) | _BV(SPI_SCK)))
- | _BV(SPI_SS);
-
/* INT5, INT6: falling edge */
EICRB = (EICRB & ~((0b11 << ISC50) | (0b11 << ISC60))) |
(0b10 << ISC50) | (0b10 << ISC60);
return (mcusr & _BV(PORF)) != 0;
}
+static
+void setup_system_time(void)
+{
+ struct tm rtc_time;
+
+ rtc_get(&rtc_time);
+ rtc_time.tm_isdst = 0;
+ set_system_time(mk_gmtime(&rtc_time) );
+}
+
+
+
+static void setup_fatfs(void)
+{
+ static FATFS FatFs0;
+ static FATFS FatFs1;
+
+ f_mount(&FatFs0, "0:", 0);
+ f_mount(&FatFs1, "1:", 0);
+}
+
/*--------------------------------------------------------------------------*/
/* Stored value of bootdelay, used by autoboot_command() */
int main(void)
{
- setup_avr();
- z80_setup_bus();
+ extern void setup_mmc(void);
+
for (int i = 0; i < GPIO_MAX; i++)
gpio_config(i, INPUT_PULLUP);
+ setup_avr();
+ setup_mmc();
+ z80_setup_bus();
env_init();
if (reset_reason_is_power_on())
print_reset_reason();
#endif
-#if DEBUG
- unsigned long i_speed = getenv_ulong(PSTR("i2c_clock"), 10, CONFIG_SYS_I2C_CLOCK);
- debug("### Setting I2C clock Frequency to %lu Hz.\n", i_speed);
- i2c_init(i_speed);
-#else
i2c_init(CONFIG_SYS_I2C_CLOCK);
-#endif
+ setup_system_time();
+ setup_fatfs();
printf_P(PSTR("\nATMEGA1281+Z8S180 Stamp Monitor\n\n"));