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Blackfin: add portmuxing for UARTs on the BF51x 

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
utp
Mike Frysinger 2008-10-11 21:15:53 -04:00
parent 4f6a313240
commit 51230e6e35
1 changed files with 10 additions and 1 deletions
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11
cpu/blackfin/serial.h
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@ -95,7 +95,16 @@
__attribute__((always_inline))
static inline void serial_do_portmux(void)
{
#ifdef __ADSPBF52x__
#if defined(__ADSPBF51x__)
# define DO_MUX(port, mux_tx, mux_rx, tx, rx) \
bfin_write_PORT##port##_MUX((bfin_read_PORT##port##_MUX() & ~(PORT_x_MUX_##mux_tx##_MASK | PORT_x_MUX_##mux_rx##_MASK)) | PORT_x_MUX_##mux_tx##_FUNC_2 | PORT_x_MUX_##mux_rx##_FUNC_2); \
bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);
switch (CONFIG_UART_CONSOLE) {
case 0: DO_MUX(G, 5, 5, 9, 10); break; /* Port G; mux 5; PG9 and PG10 */
case 1: DO_MUX(F, 2, 3, 14, 15); break; /* Port H; mux 2/3; PH14 and PH15 */
}
SSYNC();
#elif defined(__ADSPBF52x__)
# define DO_MUX(port, mux, tx, rx) \
bfin_write_PORT##port##_MUX((bfin_read_PORT##port##_MUX() & ~PORT_x_MUX_##mux##_MASK) | PORT_x_MUX_##mux##_FUNC_3); \
bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);