#include #include #include "config.h" #include "obj/autoconf.h" #include "clock.h" #include "uart.h" #include "bits.h" #include "power.h" #include "timer.h" #include "ff.h" #include "diskio.h" #include "led.h" #include "sdnative.h" #include "crc.h" #include "fileops.h" #include "iap.h" #define EMC0TOGGLE (3<<4) #define MR0R (1<<1) int i; volatile enum diskstates disk_state; extern volatile tick_t ticks; int (*chain)(void); int main(void) { SNES_CIC_PAIR_REG->FIODIR = BV(SNES_CIC_PAIR_BIT); BITBAND(SNES_CIC_PAIR_REG->FIOSET, SNES_CIC_PAIR_BIT) = 1; /* LPC_GPIO2->FIODIR = BV(0) | BV(1) | BV(2); */ // LPC_GPIO0->FIODIR = BV(16); /* connect UART3 on P0[25:26] + SSP0 on P0[15:18] + MAT3.0 on P0[10] */ LPC_PINCON->PINSEL1 = BV(18) | BV(19) | BV(20) | BV(21) /* UART3 */ | BV(3) | BV(5); /* SSP0 (FPGA) except SS */ LPC_PINCON->PINSEL0 = BV(31); /* SSP0 */ /* | BV(13) | BV(15) | BV(17) | BV(19) SSP1 (SD) */ /* pull-down CIC data lines */ LPC_PINCON->PINMODE0 = BV(0) | BV(1) | BV(2) | BV(3); clock_disconnect(); power_init(); timer_init(); DBG_UART uart_init(); led_init(); readled(0); rdyled(1); writeled(0); /* do this last because the peripheral init()s change PCLK dividers */ clock_init(); // LPC_PINCON->PINSEL0 |= BV(20) | BV(21); /* MAT3.0 (FPGA clock) */ sdn_init(); for(i = 0; i < 20; i++) uart_putc('-'); uart_putc('\n'); DBG_BL printf("chksum=%08lx\n", *(uint32_t*)28); /*DBG_BL*/ printf("\n\nsd2snes mk.2 bootloader\nver.: " VER "\ncpu clock: %ld Hz\n", CONFIG_CPU_FREQUENCY); DBG_BL printf("PCONP=%lx\n", LPC_SC->PCONP); /* setup timer (fpga clk) */ LPC_TIM3->CTCR=0; LPC_TIM3->EMR=EMC0TOGGLE; LPC_TIM3->MCR=MR0R; LPC_TIM3->MR0=1; LPC_TIM3->TCR=1; NVIC->ICER[0] = 0xffffffff; NVIC->ICER[1] = 0xffffffff; FLASH_RES res = flash_file((uint8_t*)"/sd2snes/firmware.img"); if(res == ERR_FLASHPREP || res == ERR_FLASHERASE || res == ERR_FLASH) { rdyled(0); writeled(1); } if(res == ERR_FILEHD || res == ERR_FILECHK) { rdyled(0); readled(1); } DBG_BL printf("flash result = %d\n", res); if(res != ERR_OK) { if((res = check_flash()) != ERR_OK) { DBG_BL printf("check_flash() failed with error %d, not booting.\n", res); while(1) { toggle_rdy_led(); delay_ms(500); } } } NVIC_DisableIRQ(RIT_IRQn); NVIC_DisableIRQ(UART_IRQ); SCB->VTOR=FW_START+0x00000100; chain = (void*)(*((uint32_t*)(FW_START+0x00000104))); uart_putc("0123456789abcdef"[((uint32_t)chain>>28)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain>>24)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain>>20)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain>>16)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain>>12)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain>>8)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain>>4)&15]); uart_putc("0123456789abcdef"[((uint32_t)chain)&15]); uart_putc('\n'); chain(); while(1); }