diff options
| author | Jiangfeng Xiao <xiaojiangfeng@huawei.com> | 2019-07-09 11:31:06 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-09 14:29:26 -0700 |
| commit | 24eca4b4c0052b5dda9cb8efc804b8c4c044cfd4 (patch) | |
| tree | cab0b2748a653760f899f633d698a841e6c4eb5b /drivers/net | |
| parent | 0331f8550c504aea34c3ab9198f7324ee8b567b8 (diff) | |
| download | linux-24eca4b4c0052b5dda9cb8efc804b8c4c044cfd4.tar.bz2 | |
net: hisilicon: HI13X1_GMAX need dreq reset at first
HI13X1_GMAC delete request for soft reset at first,
otherwise, the subsequent initialization will not
take effect.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hip04_eth.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c index fe61b01d41da..19d8cfddd210 100644 --- a/drivers/net/ethernet/hisilicon/hip04_eth.c +++ b/drivers/net/ethernet/hisilicon/hip04_eth.c @@ -16,6 +16,8 @@ #include <linux/mfd/syscon.h> #include <linux/regmap.h> +#define SC_PPE_RESET_DREQ 0x026C + #define PPE_CFG_RX_ADDR 0x100 #define PPE_CFG_POOL_GRP 0x300 #define PPE_CFG_RX_BUF_SIZE 0x400 @@ -61,6 +63,8 @@ #define PPE_HIS_RX_PKT_CNT 0x804 +#define RESET_DREQ_ALL 0xffffffff + /* REG_INTERRUPT */ #define RCV_INT BIT(10) #define RCV_NOBUF BIT(8) @@ -168,6 +172,9 @@ struct rx_desc { struct hip04_priv { void __iomem *base; +#if defined(CONFIG_HI13X1_GMAC) + void __iomem *sysctrl_base; +#endif int phy_mode; int chan; unsigned int port; @@ -244,6 +251,13 @@ static void hip04_config_port(struct net_device *ndev, u32 speed, u32 duplex) writel_relaxed(val, priv->base + GE_MODE_CHANGE_REG); } +static void hip04_reset_dreq(struct hip04_priv *priv) +{ +#if defined(CONFIG_HI13X1_GMAC) + writel_relaxed(RESET_DREQ_ALL, priv->sysctrl_base + SC_PPE_RESET_DREQ); +#endif +} + static void hip04_reset_ppe(struct hip04_priv *priv) { u32 val, tmp, timeout = 0; @@ -853,6 +867,15 @@ static int hip04_mac_probe(struct platform_device *pdev) goto init_fail; } +#if defined(CONFIG_HI13X1_GMAC) + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + priv->sysctrl_base = devm_ioremap_resource(d, res); + if (IS_ERR(priv->sysctrl_base)) { + ret = PTR_ERR(priv->sysctrl_base); + goto init_fail; + } +#endif + ret = of_parse_phandle_with_fixed_args(node, "port-handle", 2, 0, &arg); if (ret < 0) { dev_warn(d, "no port-handle\n"); @@ -921,6 +944,7 @@ static int hip04_mac_probe(struct platform_device *pdev) ndev->irq = irq; netif_napi_add(ndev, &priv->napi, hip04_rx_poll, NAPI_POLL_WEIGHT); + hip04_reset_dreq(priv); hip04_reset_ppe(priv); if (priv->phy_mode == PHY_INTERFACE_MODE_MII) hip04_config_port(ndev, SPEED_100, DUPLEX_FULL); |