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kernel->optimize RS485 transmisson

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This commit is contained in:
sujl
2018-06-21 11:12:00 +08:00
parent 557344827c
commit d139f9caa4
1 changed files with 2 additions and 2 deletions
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4
kernel/drivers/spi/spi-wk2xxx.c
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@ -1135,8 +1135,8 @@ static int wk2xxx_startup(struct uart_port *port)//i
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_FCR,0xfc);
//set rx/tx interrupt
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_SPAGE,1);
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_RFTL,0X80);
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_TFTL,0X20);
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_RFTL,0X40);
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_TFTL,0X40);
wk2xxx_write_reg(s->spi_wk,s->port.iobase,WK2XXX_SPAGE,0);
//enable the sub port interrupt
wk2xxx_read_reg(s->spi_wk,WK2XXX_GPORT,WK2XXX_GIER,dat);