view target-utils/c139explore/main.c @ 992:a7b0b426f9ca

target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents eb27543ce18e
children d92e4aadeeb3
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#include "types.h"
#include "ns16550.h"

struct ns16550_regs *uart_base;

main()
{
	/* delay kludge workaround for defect in fc-compalram */
	osmo_delay_ms(30);
	uart_base = (struct ns16550_regs *) 0xFFFF5800;
	printf("C139 hardware exploration utility running\n");
	/* GPIO init */
	*(volatile u16 *)0xfffe4802 = 0x0002;
	*(volatile u16 *)0xfffe4804 = 0xFFF5;
	/* take peripherals out of reset */
	*(volatile u16 *)0xfffffd04 = 0xFFF3;
	abb_init();
	uwire_init();
	for (;;) {
		putchar('=');
		if (command_entry())
			command_dispatch();
	}
}