[PATCH 01/18] Virtex: Add uartlite bootwrapper driver

Peter Korsgaard jacmet at sunsite.dk
Wed Oct 3 01:04:35 EST 2007


>>>>> "Grant" == Grant Likely <grant.likely at secretlab.ca> writes:

Hi,

 Grant> +static int uartlite_open(void)
 Grant> +{
 Grant> +	/* Clear the RX FIFO */
 Grant> +	out_be32(reg_base + 0x0C, 0x2);
 Grant> +	return 0;
 Grant> +}
 Grant> +
 Grant> +static void uartlite_putc(unsigned char c)
 Grant> +{
 Grant> +	while ((in_be32(reg_base + 0x8) & 0x08) != 0); /* spin */
 Grant> +	out_be32(reg_base + 0x4, c);

RX, TX, STATUS and CONTROL defines for the registers would be nice for
readability.

-- 
Bye, Peter Korsgaard



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