diff options
Diffstat (limited to 'arch/blackfin/cpu/serial.h')
| -rw-r--r-- | arch/blackfin/cpu/serial.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/arch/blackfin/cpu/serial.h b/arch/blackfin/cpu/serial.h index b0cf09a..7999a19 100644 --- a/arch/blackfin/cpu/serial.h +++ b/arch/blackfin/cpu/serial.h @@ -31,13 +31,19 @@ #define LOB(x) ((x) & 0xFF) #define HIB(x) (((x) >> 8) & 0xFF) +#if defined(__ADSPBF50x__) || defined(__ADSPBF54x__) +# define BFIN_UART_HW_VER 2 +#else +# define BFIN_UART_HW_VER 1 +#endif + /* * All Blackfin system MMRs are padded to 32bits even if the register * itself is only 16bits. So use a helper macro to streamline this. */ #define __BFP(m) u16 m; u16 __pad_##m struct bfin_mmr_serial { -#ifdef __ADSPBF54x__ +#if BFIN_UART_HW_VER == 2 __BFP(dll); __BFP(dlh); __BFP(gctl); @@ -88,7 +94,7 @@ struct bfin_mmr_serial { #endif #define pUART ((volatile struct bfin_mmr_serial *)UART_DLL) -#ifdef __ADSPBF54x__ +#if BFIN_UART_HW_VER == 2 # define ACCESS_LATCH() # define ACCESS_PORT_IER() #else @@ -107,7 +113,16 @@ static inline void serial_do_portmux(void) return; } -#if defined(__ADSPBF51x__) +#if defined(__ADSPBF50x__) +# 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_1 | PORT_x_MUX_##mux_rx##_FUNC_1); \ + 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, 7, 7, 12, 13); break; /* Port G; mux 7; PG12 and PG13 */ + case 1: DO_MUX(F, 3, 3, 6, 7); break; /* Port F; mux 3; PF6 and PF7 */ + } + SSYNC(); +#elif 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); |