From: Vijay Kumar Date: Wed, 29 Oct 2008 03:28:37 +0000 (+0530) Subject: Staging: poch: Rx control register init X-Git-Tag: firefly_0821_release~16128^2~142 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ca219995b299a069dc0a88ddc24ac72423a81361;p=firefly-linux-kernel-4.4.55.git Staging: poch: Rx control register init Added Rx control register definition. Flush Rx FIFO on init, and set continuous DMA mode. Signed-off-by: Vijay Kumar Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/poch/poch.c b/drivers/staging/poch/poch.c index b54760f41a4b..0a3eca14075e 100644 --- a/drivers/staging/poch/poch.c +++ b/drivers/staging/poch/poch.c @@ -126,9 +126,11 @@ #define FPGA_INT_TX_ACQ_DONE (0x1 << 1) #define FPGA_INT_RX_ACQ_DONE (0x1) -#define FPGA_RX_ADC_CTL_REG 0x214 -#define FPGA_RX_ADC_CTL_CONT_CAP (0x0) -#define FPGA_RX_ADC_CTL_SNAP_CAP (0x1) +#define FPGA_RX_CTL_REG 0x214 +#define FPGA_RX_CTL_FIFO_FLUSH (0x1 << 9) +#define FPGA_RX_CTL_SYNTH_DATA (0x1 << 8) +#define FPGA_RX_CTL_CONT_CAP (0x0 << 1) +#define FPGA_RX_CTL_SNAP_CAP (0x1 << 1) #define FPGA_RX_ARM_REG 0x21C @@ -819,6 +821,11 @@ static int poch_open(struct inode *inode, struct file *filp) iowrite32(FPGA_TX_CTL_FIFO_FLUSH | FPGA_TX_CTL_OUTPUT_CARDBUS, fpga + FPGA_TX_CTL_REG); + } else { + /* Flush RX FIFO and output data to cardbus. */ + iowrite32(FPGA_RX_CTL_CONT_CAP + | FPGA_RX_CTL_FIFO_FLUSH, + fpga + FPGA_RX_CTL_REG); } atomic_inc(&channel->inited);