diff options
| -rw-r--r-- | src/soc/rockchip/rk3288/spi.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/src/soc/rockchip/rk3288/spi.c b/src/soc/rockchip/rk3288/spi.c index 3fb7291085..431b2d37f4 100644 --- a/src/soc/rockchip/rk3288/spi.c +++ b/src/soc/rockchip/rk3288/spi.c @@ -33,11 +33,11 @@ struct rockchip_spi_slave { struct spi_slave slave; struct rockchip_spi *regs; - unsigned int fifo_size; }; #define SPI_TIMEOUT_US 1000 #define SPI_SRCCLK_HZ 99000000 +#define SPI_FIFO_DEPTH 32 static struct rockchip_spi_slave rockchip_spi_slaves[3] = { { @@ -46,12 +46,10 @@ static struct rockchip_spi_slave rockchip_spi_slaves[3] = { .rw = SPI_READ_FLAG | SPI_WRITE_FLAG, }, .regs = (void *)SPI0_BASE, - .fifo_size = 32, }, { .slave = {.bus = 1, .rw = SPI_READ_FLAG,}, .regs = (void *)SPI1_BASE, - .fifo_size = 32, }, { .slave = { @@ -59,7 +57,6 @@ static struct rockchip_spi_slave rockchip_spi_slaves[3] = { .rw = SPI_READ_FLAG | SPI_WRITE_FLAG, }, .regs = (void *)SPI2_BASE, - .fifo_size = 32, }, }; @@ -108,8 +105,7 @@ static void rockchip_spi_set_clk(struct rockchip_spi *regs, unsigned int hz) void rockchip_spi_init(unsigned int bus, unsigned int speed_hz) { - struct rockchip_spi_slave *espi = &rockchip_spi_slaves[bus]; - struct rockchip_spi *regs = espi->regs; + struct rockchip_spi *regs = rockchip_spi_slaves[bus].regs; unsigned int ctrlr0 = 0; rkclk_configure_spi(bus, SPI_SRCCLK_HZ); @@ -145,9 +141,9 @@ void rockchip_spi_init(unsigned int bus, unsigned int speed_hz) writel(ctrlr0, ®s->ctrlr0); - /*fifo depth */ - writel(espi->fifo_size / 2 - 1, ®s->txftlr); - writel(espi->fifo_size / 2 - 1, ®s->rxftlr); + /* fifo depth */ + writel(SPI_FIFO_DEPTH / 2 - 1, ®s->txftlr); + writel(SPI_FIFO_DEPTH / 2 - 1, ®s->rxftlr); } int spi_claim_bus(struct spi_slave *slave) @@ -182,7 +178,6 @@ int spi_xfer(struct spi_slave *slave, const void *dout, unsigned int sout, unsigned int bytes_remaining; uint8_t *p; struct rockchip_spi *regs = to_rockchip_spi(slave)->regs; - struct rockchip_spi_slave *espi = to_rockchip_spi(slave); if (dout) { len = sout; @@ -196,8 +191,7 @@ int spi_xfer(struct spi_slave *slave, const void *dout, unsigned int sout, SPI_TMOD_TO << SPI_TMOD_OFFSET); writel(1, ®s->spienr);/*enable spi */ while (bytes_remaining) { - if ((readl(®s->txflr) & 0x3f) - < espi->fifo_size) { + if ((readl(®s->txflr) & 0x3f) < SPI_FIFO_DEPTH) { writel(*p++, ®s->txdr); bytes_remaining--; } |