diff options
Diffstat (limited to 'drivers/net/ravb.c')
| -rw-r--r-- | drivers/net/ravb.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/drivers/net/ravb.c b/drivers/net/ravb.c index 1d1118c3413..4078d33bb5e 100644 --- a/drivers/net/ravb.c +++ b/drivers/net/ravb.c @@ -52,6 +52,7 @@ #define CSR_OPS 0x0000000F #define CSR_OPS_CONFIG BIT(1) +#define APSR_RDM BIT(13) #define APSR_TDM BIT(14) #define TCCR_TSRQ0 BIT(0) @@ -376,6 +377,9 @@ static int ravb_dmac_init(struct udevice *dev) struct ravb_priv *eth = dev_get_priv(dev); struct eth_pdata *pdata = dev_get_plat(dev); int ret = 0; + int mode = 0; + unsigned int delay; + bool explicit_delay = false; /* Set CONFIG mode */ ret = ravb_reset(dev); @@ -402,9 +406,33 @@ static int ravb_dmac_init(struct udevice *dev) (rmobile_get_cpu_type() == RMOBILE_CPU_TYPE_R8A77995)) return 0; - if ((pdata->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) || - (pdata->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID)) - writel(APSR_TDM, eth->iobase + RAVB_REG_APSR); + if (!dev_read_u32(dev, "rx-internal-delay-ps", &delay)) { + /* Valid values are 0 and 1800, according to DT bindings */ + if (delay) { + mode |= APSR_RDM; + explicit_delay = true; + } + } + + if (!dev_read_u32(dev, "tx-internal-delay-ps", &delay)) { + /* Valid values are 0 and 2000, according to DT bindings */ + if (delay) { + mode |= APSR_TDM; + explicit_delay = true; + } + } + + if (!explicit_delay) { + if (pdata->phy_interface == PHY_INTERFACE_MODE_RGMII_ID || + pdata->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) + mode |= APSR_RDM; + + if (pdata->phy_interface == PHY_INTERFACE_MODE_RGMII_ID || + pdata->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) + mode |= APSR_TDM; + } + + writel(mode, eth->iobase + RAVB_REG_APSR); return 0; } |