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https://github.com/brain-hackers/u-boot-brain
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Blackfin: add portmuxing for UARTs on the BF51x
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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@ -95,7 +95,16 @@
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__attribute__((always_inline))
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__attribute__((always_inline))
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static inline void serial_do_portmux(void)
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static inline void serial_do_portmux(void)
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{
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{
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#ifdef __ADSPBF52x__
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#if defined(__ADSPBF51x__)
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# define DO_MUX(port, mux_tx, mux_rx, tx, rx) \
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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); \
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bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);
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switch (CONFIG_UART_CONSOLE) {
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case 0: DO_MUX(G, 5, 5, 9, 10); break; /* Port G; mux 5; PG9 and PG10 */
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case 1: DO_MUX(F, 2, 3, 14, 15); break; /* Port H; mux 2/3; PH14 and PH15 */
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}
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SSYNC();
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#elif defined(__ADSPBF52x__)
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# define DO_MUX(port, mux, tx, rx) \
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# define DO_MUX(port, mux, tx, rx) \
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bfin_write_PORT##port##_MUX((bfin_read_PORT##port##_MUX() & ~PORT_x_MUX_##mux##_MASK) | PORT_x_MUX_##mux##_FUNC_3); \
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bfin_write_PORT##port##_MUX((bfin_read_PORT##port##_MUX() & ~PORT_x_MUX_##mux##_MASK) | PORT_x_MUX_##mux##_FUNC_3); \
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bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);
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bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);
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