FreeCalypso > hg > freecalypso-sw
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(); } }